RenderBlock.cpp revision b52229f8ad5e8b3632305005e437104c11eba942
18e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* 28e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 38e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (C) 1999 Antti Koivisto (koivisto@kde.org) 48e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (C) 2007 David Smith (catfish.man@gmail.com) 5d0825bca7fe65beaee391d30da42e937db621564Steve Block * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved. 6967717af5423377c967781471ee106e2bb4e11c8Ben Murdoch * Copyright (C) Research In Motion Limited 2010. All rights reserved. 78e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 88e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * This library is free software; you can redistribute it and/or 98e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * modify it under the terms of the GNU Library General Public 108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * License as published by the Free Software Foundation; either 118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * version 2 of the License, or (at your option) any later version. 128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * This library is distributed in the hope that it will be useful, 148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * but WITHOUT ANY WARRANTY; without even the implied warranty of 158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Library General Public License for more details. 178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * You should have received a copy of the GNU Library General Public License 198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * along with this library; see the file COPYING.LIB. If not, write to 208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Boston, MA 02110-1301, USA. 228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "config.h" 258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "RenderBlock.h" 268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 275abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick#include "ColumnInfo.h" 288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "Document.h" 298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "Element.h" 308f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#include "FloatQuad.h" 318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "Frame.h" 328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "FrameView.h" 338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "GraphicsContext.h" 345f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#include "HTMLFormElement.h" 358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "HTMLNames.h" 368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "HitTestResult.h" 372bde8e466a4451c7319e3a072d118917957d6554Steve Block#include "InlineIterator.h" 388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "InlineTextBox.h" 3965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch#include "PaintInfo.h" 402fc2651226baac27029e38c9d6ef883fa32084dbSteve Block#include "RenderCombineText.h" 41231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#include "RenderFlexibleBox.h" 428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "RenderImage.h" 43635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#include "RenderInline.h" 44545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch#include "RenderLayer.h" 458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "RenderMarquee.h" 468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "RenderReplica.h" 478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "RenderTableCell.h" 488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "RenderTextFragment.h" 498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "RenderTheme.h" 508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "RenderView.h" 518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "SelectionController.h" 525f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#include "Settings.h" 53ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch#include "TextRun.h" 54643ca7872b450ea4efacab6188849e5aac2ba161Steve Block#include "TransformState.h" 55635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#include <wtf/StdLibExtras.h> 568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#ifdef ANDROID_LAYOUT 588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "Settings.h" 598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#endif 608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectusing namespace std; 628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectusing namespace WTF; 638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectusing namespace Unicode; 648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectnamespace WebCore { 668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectusing namespace HTMLNames; 688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projecttypedef WTF::HashMap<const RenderBox*, ColumnInfo*> ColumnInfoMap; 708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstatic ColumnInfoMap* gColumnInfoMap = 0; 718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projecttypedef WTF::HashMap<const RenderBlock*, HashSet<RenderBox*>*> PercentHeightDescendantsMap; 738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstatic PercentHeightDescendantsMap* gPercentHeightDescendantsMap = 0; 748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projecttypedef WTF::HashMap<const RenderBox*, HashSet<RenderBlock*>*> PercentHeightContainerMap; 768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstatic PercentHeightContainerMap* gPercentHeightContainerMap = 0; 77635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 788f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qiantypedef WTF::HashMap<RenderBlock*, ListHashSet<RenderInline*>*> ContinuationOutlineTableMap; 798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 800bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdochtypedef WTF::HashSet<RenderBlock*> DelayedUpdateScrollInfoSet; 810bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdochstatic int gDelayUpdateScrollInfo = 0; 820bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdochstatic DelayedUpdateScrollInfoSet* gDelayedUpdateScrollInfoSet = 0; 830bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 8454cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Blockbool RenderBlock::s_canPropagateFloatIntoSibling = false; 8554cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block 868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// Our MarginInfo state used when laying out block children. 87bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian MonsenRenderBlock::MarginInfo::MarginInfo(RenderBlock* block, int beforeBorderPadding, int afterBorderPadding) 88bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen : m_atBeforeSideOfBlock(true) 89bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen , m_atAfterSideOfBlock(false) 90bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen , m_marginBeforeQuirk(false) 91bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen , m_marginAfterQuirk(false) 92bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen , m_determinedMarginBeforeQuirk(false) 938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Whether or not we can collapse our own margins with our children. We don't do this 958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // if we had any border/padding (obviously), if we're the root or HTML elements, or if 968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // we're positioned, floating, a table cell. 97bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_canCollapseWithChildren = !block->isRenderView() && !block->isRoot() && !block->isPositioned() 98bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen && !block->isFloating() && !block->isTableCell() && !block->hasOverflowClip() && !block->isInlineBlockOrInlineTable() 99a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch && !block->isWritingModeRoot(); 1008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 101bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_canCollapseMarginBeforeWithChildren = m_canCollapseWithChildren && (beforeBorderPadding == 0) && block->style()->marginBeforeCollapse() != MSEPARATE; 1028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If any height other than auto is specified in CSS, then we don't collapse our bottom 1048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // margins with our children's margins. To do otherwise would be to risk odd visual 1058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // effects when the children overflow out of the parent block and yet still collapse 1068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // with it. We also don't collapse if we have any bottom border/padding. 107bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_canCollapseMarginAfterWithChildren = m_canCollapseWithChildren && (afterBorderPadding == 0) && 108bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen (block->style()->logicalHeight().isAuto() && block->style()->logicalHeight().value() == 0) && block->style()->marginAfterCollapse() != MSEPARATE; 1098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 110bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_quirkContainer = block->isTableCell() || block->isBody() || block->style()->marginBeforeCollapse() == MDISCARD || 111bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen block->style()->marginAfterCollapse() == MDISCARD; 1128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 113a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_positiveMargin = m_canCollapseMarginBeforeWithChildren ? block->maxPositiveMarginBefore() : 0; 114a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_negativeMargin = m_canCollapseMarginBeforeWithChildren ? block->maxNegativeMarginBefore() : 0; 1158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// ------------------------------------------------------------------------------------------------------- 1188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectRenderBlock::RenderBlock(Node* node) 1208f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian : RenderBox(node) 1218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project , m_floatingObjects(0) 1228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project , m_positionedObjects(0) 12368513a70bcd92384395513322f1b801e7bf9c729Steve Block , m_rareData(0) 1248f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian , m_lineHeight(-1) 12565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch , m_beingDestroyed(false) 1268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1278f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian setChildrenInline(true); 1288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectRenderBlock::~RenderBlock() 1318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 13281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (m_floatingObjects) 13381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch deleteAllValues(m_floatingObjects->set()); 1348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1358f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (hasColumns()) 1368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project delete gColumnInfoMap->take(this); 1378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (gPercentHeightDescendantsMap) { 1398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (HashSet<RenderBox*>* descendantSet = gPercentHeightDescendantsMap->take(this)) { 1408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HashSet<RenderBox*>::iterator end = descendantSet->end(); 1418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (HashSet<RenderBox*>::iterator descendant = descendantSet->begin(); descendant != end; ++descendant) { 1428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HashSet<RenderBlock*>* containerSet = gPercentHeightContainerMap->get(*descendant); 1438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(containerSet); 1448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!containerSet) 1458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 1468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(containerSet->contains(this)); 1478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project containerSet->remove(this); 1488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (containerSet->isEmpty()) { 1498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project gPercentHeightContainerMap->remove(*descendant); 1508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project delete containerSet; 1518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project delete descendantSet; 1548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::destroy() 1598f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 16065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch // Mark as being destroyed to avoid trouble with merges in removeChild(). 16165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch m_beingDestroyed = true; 16265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 163643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // Make sure to destroy anonymous children first while they are still connected to the rest of the tree, so that they will 164643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // properly dirty line boxes that they are removed from. Effects that do :before/:after only on hover could crash otherwise. 165643ca7872b450ea4efacab6188849e5aac2ba161Steve Block children()->destroyLeftoverChildren(); 1668f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 167643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // Destroy our continuation before anything other than anonymous children. 168643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // The reason we don't destroy it before anonymous children is that they may 169643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // have continuations of their own that are anonymous children of our continuation. 170cad810f21b803229eb11403f9209855525a25d57Steve Block RenderBoxModelObject* continuation = this->continuation(); 171cad810f21b803229eb11403f9209855525a25d57Steve Block if (continuation) { 172cad810f21b803229eb11403f9209855525a25d57Steve Block continuation->destroy(); 173cad810f21b803229eb11403f9209855525a25d57Steve Block setContinuation(0); 174643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 175643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 1768f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!documentBeingDestroyed()) { 1778f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (firstLineBox()) { 1788f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // We can't wait for RenderBox::destroy to clear the selection, 1798f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // because by then we will have nuked the line boxes. 1808f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // FIXME: The SelectionController should be responsible for this when it 1818f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // is notified of DOM mutations. 1828f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (isSelectionBorder()) 1838f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian view()->clearSelection(); 1848f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 1858f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // If we are an anonymous block, then our line boxes might have children 1868f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // that will outlast this block. In the non-anonymous block case those 1878f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // children will be destroyed by the time we return from this function. 1888f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (isAnonymousBlock()) { 189dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block for (InlineFlowBox* box = firstLineBox(); box; box = box->nextLineBox()) { 1908f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian while (InlineBox* childBox = box->firstChild()) 1918f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian childBox->remove(); 1928f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 1938f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 194c9773ed4ca308bb2b8e70f49ba7fbaa35b1f46a2Steve Block } else if (parent()) 1958f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian parent()->dirtyLinesFromChangedChild(this); 1968f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 1978f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 1988f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian m_lineBoxes.deleteLineBoxes(renderArena()); 1998f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 2008f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBox::destroy(); 2018f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 2028f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 2038f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::styleWillChange(StyleDifference diff, const RenderStyle* newStyle) 2048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 20554cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block s_canPropagateFloatIntoSibling = style() ? !isFloatingOrPositioned() && !avoidsFloats() : false; 20654cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block 20765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch setReplaced(newStyle->isDisplayInlineType()); 208635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 2098f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (style() && parent() && diff == StyleDifferenceLayout && style()->position() != newStyle->position()) { 210635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (newStyle->position() == StaticPosition) 211635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // Clear our positioned objects list. Our absolutely positioned descendants will be 212635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // inserted into our containing block's positioned objects list during layout. 213635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project removePositionedObjects(0); 214635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project else if (style()->position() == StaticPosition) { 215635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // Remove our absolutely positioned descendants from their current containing block. 216635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // They will be inserted into our positioned objects list during layout. 217635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderObject* cb = parent(); 218635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project while (cb && (cb->style()->position() == StaticPosition || (cb->isInline() && !cb->isReplaced())) && !cb->isRenderView()) { 219635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (cb->style()->position() == RelativePosition && cb->isInline() && !cb->isReplaced()) { 220635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project cb = cb->containingBlock(); 221635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project break; 222635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project } 223635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project cb = cb->parent(); 224635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project } 225635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 226635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (cb->isRenderBlock()) 2278f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian toRenderBlock(cb)->removePositionedObjects(this); 228635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project } 229383cc12851b723ebdaf6dddc7cb16d62cf7c7c7eSteve Block 230383cc12851b723ebdaf6dddc7cb16d62cf7c7c7eSteve Block if (containsFloats() && !isFloating() && !isPositioned() && (newStyle->position() == AbsolutePosition || newStyle->position() == FixedPosition)) 231383cc12851b723ebdaf6dddc7cb16d62cf7c7c7eSteve Block markAllDescendantsWithFloatsForLayout(); 232635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project } 233635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 2348f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBox::styleWillChange(diff, newStyle); 2358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 2368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2378f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle) 2388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2398f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBox::styleDidChange(diff, oldStyle); 2408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 241545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (!isAnonymousBlock()) { 242545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Ensure that all of our continuation blocks pick up the new style. 243545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch for (RenderBlock* currCont = blockElementContinuation(); currCont; currCont = currCont->blockElementContinuation()) { 244545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBoxModelObject* nextCont = currCont->continuation(); 245545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch currCont->setContinuation(0); 246545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch currCont->setStyle(style()); 247545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch currCont->setContinuation(nextCont); 248545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } 249545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } 250545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 2518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: We could save this call when the change only affected non-inherited properties 2528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderObject* child = firstChild(); child; child = child->nextSibling()) { 2538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isAnonymousBlock()) { 2542bde8e466a4451c7319e3a072d118917957d6554Steve Block RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyle(style()); 2555af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (style()->specifiesColumns()) { 2565af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (child->style()->specifiesColumns()) 2575af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newStyle->inheritColumnPropertiesFrom(style()); 2585af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (child->style()->columnSpan()) 2595af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newStyle->setColumnSpan(true); 2605af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } 2618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project newStyle->setDisplay(BLOCK); 2628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project child->setStyle(newStyle.release()); 2638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 2648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 2658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_lineHeight = -1; 2678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Update pseudos for :before and :after now. 269635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (!isAnonymous() && document()->usesBeforeAfterRules() && canHaveChildren()) { 2708f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian updateBeforeAfterContent(BEFORE); 2718f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian updateBeforeAfterContent(AFTER); 2728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 27354cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block 27454cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block // After our style changed, if we lose our ability to propagate floats into next sibling 2754fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block // blocks, then we need to find the top most parent containing that overhanging float and 2764fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block // then mark its descendants with floats for layout and clear all floats from its next 2774fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block // sibling blocks that exist in our floating objects list. See bug 56299 and 62875. 27854cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block bool canPropagateFloatIntoSibling = !isFloatingOrPositioned() && !avoidsFloats(); 27954cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block if (diff == StyleDifferenceLayout && s_canPropagateFloatIntoSibling && !canPropagateFloatIntoSibling && hasOverhangingFloats()) { 2804fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block RenderBlock* parentBlock = this; 2814fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 2824fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block FloatingObjectSetIterator end = floatingObjectSet.end(); 2834fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block 2844fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block for (RenderObject* curr = parent(); curr && !curr->isRenderView(); curr = curr->parent()) { 2854fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block if (curr->isRenderBlock()) { 2864fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block RenderBlock* currBlock = toRenderBlock(curr); 2874fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block 2884fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block if (currBlock->hasOverhangingFloats()) { 2894fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 2904fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block RenderBox* renderer = (*it)->renderer(); 2914fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block if (currBlock->hasOverhangingFloat(renderer)) { 2924fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block parentBlock = currBlock; 2934fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block break; 2944fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block } 2954fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block } 2964fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block } 2974fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block } 2984fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block } 2994fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block 3004fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block parentBlock->markAllDescendantsWithFloatsForLayout(); 3014fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block parentBlock->markSiblingsWithFloatsForLayout(); 30254cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block } 3038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 3048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3058f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::updateBeforeAfterContent(PseudoId pseudoId) 3068f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 3078f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // If this is an anonymous wrapper, then the parent applies its own pseudo-element style to it. 3088f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (parent() && parent()->createsAnonymousWrapper()) 3098f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return; 3108f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return children()->updateBeforeAfterContent(this, pseudoId); 3118f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 3125af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 313545e470e52f0ac6a3a072bf559c796b42c6066b6Ben MurdochRenderBlock* RenderBlock::continuationBefore(RenderObject* beforeChild) 314545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch{ 315545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (beforeChild && beforeChild->parent() == this) 316545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return this; 317545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 318545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* curr = toRenderBlock(continuation()); 319545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* nextToLast = this; 320545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* last = this; 321545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch while (curr) { 322545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (beforeChild && beforeChild->parent() == curr) { 323545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (curr->firstChild() == beforeChild) 324545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return last; 325545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return curr; 326545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } 327545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 328545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch nextToLast = last; 329545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch last = curr; 330545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch curr = toRenderBlock(curr->continuation()); 331545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } 332545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 333545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (!beforeChild && !last->firstChild()) 334545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return nextToLast; 335545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return last; 336545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch} 337545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 338545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdochvoid RenderBlock::addChildToContinuation(RenderObject* newChild, RenderObject* beforeChild) 339545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch{ 340545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* flow = continuationBefore(beforeChild); 341545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch ASSERT(!beforeChild || beforeChild->parent()->isAnonymousColumnSpanBlock() || beforeChild->parent()->isRenderBlock()); 342545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBoxModelObject* beforeChildParent = 0; 343545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (beforeChild) 344545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch beforeChildParent = toRenderBoxModelObject(beforeChild->parent()); 345545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch else { 346545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBoxModelObject* cont = flow->continuation(); 347545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (cont) 348545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch beforeChildParent = cont; 349545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch else 350545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch beforeChildParent = flow; 351545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } 352545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 353545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (newChild->isFloatingOrPositioned()) 354545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return beforeChildParent->addChildIgnoringContinuation(newChild, beforeChild); 355545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 356545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // A continuation always consists of two potential candidates: a block or an anonymous 357545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // column span box holding column span children. 358545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch bool childIsNormal = newChild->isInline() || !newChild->style()->columnSpan(); 359545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch bool bcpIsNormal = beforeChildParent->isInline() || !beforeChildParent->style()->columnSpan(); 360545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch bool flowIsNormal = flow->isInline() || !flow->style()->columnSpan(); 361545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 362545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (flow == beforeChildParent) 363545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return flow->addChildIgnoringContinuation(newChild, beforeChild); 364545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 365545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // The goal here is to match up if we can, so that we can coalesce and create the 366545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // minimal # of continuations needed for the inline. 367545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (childIsNormal == bcpIsNormal) 368545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return beforeChildParent->addChildIgnoringContinuation(newChild, beforeChild); 369545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (flowIsNormal == childIsNormal) 370545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return flow->addChildIgnoringContinuation(newChild, 0); // Just treat like an append. 371545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return beforeChildParent->addChildIgnoringContinuation(newChild, beforeChild); 372545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch} 373545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 374545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 3755af96e2c7b73ebc627c6894727826a7576d31758Leon Clarkevoid RenderBlock::addChildToAnonymousColumnBlocks(RenderObject* newChild, RenderObject* beforeChild) 3765af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 3775af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke ASSERT(!continuation()); // We don't yet support column spans that aren't immediate children of the multi-column block. 3785af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 3795af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // The goal is to locate a suitable box in which to place our child. 380bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen RenderBlock* beforeChildParent = toRenderBlock(beforeChild && beforeChild->parent()->isRenderBlock() ? beforeChild->parent() : lastChild()); 3818f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 3825af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // If the new child is floating or positioned it can just go in that block. 3835af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (newChild->isFloatingOrPositioned()) 3845af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return beforeChildParent->addChildIgnoringAnonymousColumnBlocks(newChild, beforeChild); 3855af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 3865af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // See if the child can be placed in the box. 3875af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke bool newChildHasColumnSpan = newChild->style()->columnSpan() && !newChild->isInline(); 3885af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke bool beforeChildParentHoldsColumnSpans = beforeChildParent->isAnonymousColumnSpanBlock(); 3895af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 3905af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (newChildHasColumnSpan == beforeChildParentHoldsColumnSpans) 3915af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return beforeChildParent->addChildIgnoringAnonymousColumnBlocks(newChild, beforeChild); 3925af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 3935af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (!beforeChild) { 3945af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Create a new block of the correct type. 3955af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* newBox = newChildHasColumnSpan ? createAnonymousColumnSpanBlock() : createAnonymousColumnsBlock(); 3965af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke children()->appendChildNode(this, newBox); 3975af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newBox->addChildIgnoringAnonymousColumnBlocks(newChild, 0); 3985af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return; 3995af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } 4005af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 4015af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderObject* immediateChild = beforeChild; 4025af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke bool isPreviousBlockViable = true; 4035af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke while (immediateChild->parent() != this) { 4045af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (isPreviousBlockViable) 4055af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke isPreviousBlockViable = !immediateChild->previousSibling(); 4065af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke immediateChild = immediateChild->parent(); 4075af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } 4085af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (isPreviousBlockViable && immediateChild->previousSibling()) 4095af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return toRenderBlock(immediateChild->previousSibling())->addChildIgnoringAnonymousColumnBlocks(newChild, 0); // Treat like an append. 4105af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 4115af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Split our anonymous blocks. 4125af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderObject* newBeforeChild = splitAnonymousBlocksAroundChild(beforeChild); 4135af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 4145af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Create a new anonymous box of the appropriate type. 4155af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* newBox = newChildHasColumnSpan ? createAnonymousColumnSpanBlock() : createAnonymousColumnsBlock(); 4165af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke children()->insertChildNode(this, newBox, newBeforeChild); 4175af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newBox->addChildIgnoringAnonymousColumnBlocks(newChild, 0); 4185af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return; 4195af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 4205af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 421545e470e52f0ac6a3a072bf559c796b42c6066b6Ben MurdochRenderBlock* RenderBlock::containingColumnsBlock(bool allowAnonymousColumnBlock) 422545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch{ 423545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch for (RenderObject* curr = this; curr; curr = curr->parent()) { 424545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (!curr->isRenderBlock() || curr->isFloatingOrPositioned() || curr->isTableCell() || curr->isRoot() || curr->isRenderView() || curr->hasOverflowClip() 425545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch || curr->isInlineBlockOrInlineTable()) 426545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return 0; 427545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 428545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* currBlock = toRenderBlock(curr); 429545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (currBlock->style()->specifiesColumns() && (allowAnonymousColumnBlock || !currBlock->isAnonymousColumnsBlock())) 430545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return currBlock; 431545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 432545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (currBlock->isAnonymousColumnSpanBlock()) 433545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return 0; 434545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } 435545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return 0; 436545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch} 437545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 438545e470e52f0ac6a3a072bf559c796b42c6066b6Ben MurdochRenderBlock* RenderBlock::clone() const 439545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch{ 440cad810f21b803229eb11403f9209855525a25d57Steve Block RenderBlock* cloneBlock; 441cad810f21b803229eb11403f9209855525a25d57Steve Block if (isAnonymousBlock()) 442cad810f21b803229eb11403f9209855525a25d57Steve Block cloneBlock = createAnonymousBlock(); 443cad810f21b803229eb11403f9209855525a25d57Steve Block else { 444cad810f21b803229eb11403f9209855525a25d57Steve Block cloneBlock = new (renderArena()) RenderBlock(node()); 445cad810f21b803229eb11403f9209855525a25d57Steve Block cloneBlock->setStyle(style()); 446b52229f8ad5e8b3632305005e437104c11eba942Steve Block if (!childrenInline() && cloneBlock->firstChild() && cloneBlock->firstChild()->isInline()) 447b52229f8ad5e8b3632305005e437104c11eba942Steve Block cloneBlock->makeChildrenNonInline(); 448cad810f21b803229eb11403f9209855525a25d57Steve Block } 449cad810f21b803229eb11403f9209855525a25d57Steve Block cloneBlock->setChildrenInline(childrenInline()); 450cad810f21b803229eb11403f9209855525a25d57Steve Block return cloneBlock; 451545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch} 452545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 453545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdochvoid RenderBlock::splitBlocks(RenderBlock* fromBlock, RenderBlock* toBlock, 454545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* middleBlock, 455545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderObject* beforeChild, RenderBoxModelObject* oldCont) 456545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch{ 457545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Create a clone of this inline. 458cad810f21b803229eb11403f9209855525a25d57Steve Block RenderBlock* cloneBlock = clone(); 459cad810f21b803229eb11403f9209855525a25d57Steve Block if (!isAnonymousBlock()) 4604a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch cloneBlock->setContinuation(oldCont); 461545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 462545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Now take all of the children from beforeChild to the end and remove 463545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // them from |this| and place them in the clone. 464545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (!beforeChild && isAfterContent(lastChild())) 465545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch beforeChild = lastChild(); 466545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch moveChildrenTo(cloneBlock, beforeChild, 0); 467545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 468545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Hook |clone| up as the continuation of the middle block. 4694a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch if (!cloneBlock->isAnonymousBlock()) 4704a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch middleBlock->setContinuation(cloneBlock); 471545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 472545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // We have been reparented and are now under the fromBlock. We need 473545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // to walk up our block parent chain until we hit the containing anonymous columns block. 474545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Once we hit the anonymous columns block we're done. 475545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBoxModelObject* curr = toRenderBoxModelObject(parent()); 476545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBoxModelObject* currChild = this; 477545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 478545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch while (curr && curr != fromBlock) { 4794a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch ASSERT(curr->isRenderBlock()); 480545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 481545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* blockCurr = toRenderBlock(curr); 482545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 483545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Create a new clone. 484545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* cloneChild = cloneBlock; 485cad810f21b803229eb11403f9209855525a25d57Steve Block cloneBlock = blockCurr->clone(); 486545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 487545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Insert our child clone as the first child. 488545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch cloneBlock->children()->appendChildNode(cloneBlock, cloneChild); 489545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 490545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Hook the clone up as a continuation of |curr|. Note we do encounter 491545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // anonymous blocks possibly as we walk up the block chain. When we split an 492545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // anonymous block, there's no need to do any continuation hookup, since we haven't 493545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // actually split a real element. 494545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (!blockCurr->isAnonymousBlock()) { 495545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch oldCont = blockCurr->continuation(); 496545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch blockCurr->setContinuation(cloneBlock); 497545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch cloneBlock->setContinuation(oldCont); 498545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } 499545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 500545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Someone may have indirectly caused a <q> to split. When this happens, the :after content 501545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // has to move into the inline continuation. Call updateBeforeAfterContent to ensure that the inline's :after 502545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // content gets properly destroyed. 503545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (document()->usesBeforeAfterRules()) 504545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch blockCurr->children()->updateBeforeAfterContent(blockCurr, AFTER); 505545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 506545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Now we need to take all of the children starting from the first child 507545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // *after* currChild and append them all to the clone. 508545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderObject* afterContent = isAfterContent(cloneBlock->lastChild()) ? cloneBlock->lastChild() : 0; 509545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch blockCurr->moveChildrenTo(cloneBlock, currChild->nextSibling(), 0, afterContent); 510545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 511545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Keep walking up the chain. 512545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch currChild = curr; 513545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch curr = toRenderBoxModelObject(curr->parent()); 514545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } 515545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 516545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Now we are at the columns block level. We need to put the clone into the toBlock. 517545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch toBlock->children()->appendChildNode(toBlock, cloneBlock); 518545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 519545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Now take all the children after currChild and remove them from the fromBlock 520545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // and put them in the toBlock. 521545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch fromBlock->moveChildrenTo(toBlock, currChild->nextSibling(), 0); 522545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch} 523545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 524545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdochvoid RenderBlock::splitFlow(RenderObject* beforeChild, RenderBlock* newBlockBox, 525545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderObject* newChild, RenderBoxModelObject* oldCont) 526545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch{ 527545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* pre = 0; 528545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* block = containingColumnsBlock(); 529545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 530545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Delete our line boxes before we do the inline split into continuations. 531545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch block->deleteLineBoxTree(); 532545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 533545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch bool madeNewBeforeBlock = false; 534545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (block->isAnonymousColumnsBlock()) { 535545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // We can reuse this block and make it the preBlock of the next continuation. 536545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch pre = block; 537545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch pre->removePositionedObjects(0); 538545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch block = toRenderBlock(block->parent()); 539545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } else { 540545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // No anonymous block available for use. Make one. 541545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch pre = block->createAnonymousColumnsBlock(); 542545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch pre->setChildrenInline(false); 543545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch madeNewBeforeBlock = true; 544545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } 545545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 546545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* post = block->createAnonymousColumnsBlock(); 547545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch post->setChildrenInline(false); 548545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 549545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderObject* boxFirst = madeNewBeforeBlock ? block->firstChild() : pre->nextSibling(); 550545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (madeNewBeforeBlock) 551545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch block->children()->insertChildNode(block, pre, boxFirst); 552545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch block->children()->insertChildNode(block, newBlockBox, boxFirst); 553545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch block->children()->insertChildNode(block, post, boxFirst); 554545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch block->setChildrenInline(false); 555545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 556545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (madeNewBeforeBlock) 557545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch block->moveChildrenTo(pre, boxFirst, 0); 558545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 559545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch splitBlocks(pre, post, newBlockBox, beforeChild, oldCont); 560545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 561545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // We already know the newBlockBox isn't going to contain inline kids, so avoid wasting 562545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // time in makeChildrenNonInline by just setting this explicitly up front. 563545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch newBlockBox->setChildrenInline(false); 564545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 565545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // We delayed adding the newChild until now so that the |newBlockBox| would be fully 566545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // connected, thus allowing newChild access to a renderArena should it need 567545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // to wrap itself in additional boxes (e.g., table construction). 568545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch newBlockBox->addChild(newChild); 569545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 570545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Always just do a full layout in order to ensure that line boxes (especially wrappers for images) 571545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // get deleted properly. Because objects moves from the pre block into the post block, we want to 572545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // make new line boxes instead of leaving the old line boxes around. 573545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch pre->setNeedsLayoutAndPrefWidthsRecalc(); 574545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch block->setNeedsLayoutAndPrefWidthsRecalc(); 575545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch post->setNeedsLayoutAndPrefWidthsRecalc(); 576545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch} 577545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 5785af96e2c7b73ebc627c6894727826a7576d31758Leon ClarkeRenderObject* RenderBlock::splitAnonymousBlocksAroundChild(RenderObject* beforeChild) 5795af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 5805af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke while (beforeChild->parent() != this) { 5815af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* blockToSplit = toRenderBlock(beforeChild->parent()); 5825af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (blockToSplit->firstChild() != beforeChild) { 5835af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // We have to split the parentBlock into two blocks. 5845af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* post = createAnonymousBlockWithSameTypeAs(blockToSplit); 5855af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke post->setChildrenInline(blockToSplit->childrenInline()); 5865af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* parentBlock = toRenderBlock(blockToSplit->parent()); 5875af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke parentBlock->children()->insertChildNode(parentBlock, post, blockToSplit->nextSibling()); 5885af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke blockToSplit->moveChildrenTo(post, beforeChild, 0, blockToSplit->hasLayer()); 5895af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke post->setNeedsLayoutAndPrefWidthsRecalc(); 5905af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke blockToSplit->setNeedsLayoutAndPrefWidthsRecalc(); 5915af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke beforeChild = post; 5925af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } else 5935af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke beforeChild = blockToSplit; 5945af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } 5955af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return beforeChild; 5965af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 5975af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 5985af96e2c7b73ebc627c6894727826a7576d31758Leon Clarkevoid RenderBlock::makeChildrenAnonymousColumnBlocks(RenderObject* beforeChild, RenderBlock* newBlockBox, RenderObject* newChild) 5995af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 6005af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* pre = 0; 6015af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* post = 0; 6025af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* block = this; // Eventually block will not just be |this|, but will also be a block nested inside |this|. Assign to a variable 6035af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // so that we don't have to patch all of the rest of the code later on. 6045af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 6055af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Delete the block's line boxes before we do the split. 6065af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke block->deleteLineBoxTree(); 607545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 6085af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (beforeChild && beforeChild->parent() != this) 6095af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke beforeChild = splitAnonymousBlocksAroundChild(beforeChild); 610545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 6115af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (beforeChild != firstChild()) { 6125af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke pre = block->createAnonymousColumnsBlock(); 6135af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke pre->setChildrenInline(block->childrenInline()); 6145af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } 6155af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 6165af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (beforeChild) { 6175af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke post = block->createAnonymousColumnsBlock(); 6185af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke post->setChildrenInline(block->childrenInline()); 6195af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } 6205af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 6215af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderObject* boxFirst = block->firstChild(); 6225af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (pre) 6235af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke block->children()->insertChildNode(block, pre, boxFirst); 6245af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke block->children()->insertChildNode(block, newBlockBox, boxFirst); 6255af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (post) 6265af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke block->children()->insertChildNode(block, post, boxFirst); 6275af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke block->setChildrenInline(false); 6285af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 6295af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // The pre/post blocks always have layers, so we know to always do a full insert/remove (so we pass true as the last argument). 6305af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke block->moveChildrenTo(pre, boxFirst, beforeChild, true); 6315af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke block->moveChildrenTo(post, beforeChild, 0, true); 6325af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 6335af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // We already know the newBlockBox isn't going to contain inline kids, so avoid wasting 6345af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // time in makeChildrenNonInline by just setting this explicitly up front. 6355af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newBlockBox->setChildrenInline(false); 6365af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 6375af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // We delayed adding the newChild until now so that the |newBlockBox| would be fully 6385af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // connected, thus allowing newChild access to a renderArena should it need 6395af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // to wrap itself in additional boxes (e.g., table construction). 6405af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newBlockBox->addChild(newChild); 6415af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 6425af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Always just do a full layout in order to ensure that line boxes (especially wrappers for images) 6435af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // get deleted properly. Because objects moved from the pre block into the post block, we want to 6445af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // make new line boxes instead of leaving the old line boxes around. 6455af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (pre) 6465af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke pre->setNeedsLayoutAndPrefWidthsRecalc(); 6475af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke block->setNeedsLayoutAndPrefWidthsRecalc(); 6485af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (post) 6495af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke post->setNeedsLayoutAndPrefWidthsRecalc(); 6505af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 6515af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 652545e470e52f0ac6a3a072bf559c796b42c6066b6Ben MurdochRenderBlock* RenderBlock::columnsBlockForSpanningElement(RenderObject* newChild) 6535af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 654545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // FIXME: This function is the gateway for the addition of column-span support. It will 655545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // be added to in three stages: 6565af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // (1) Immediate children of a multi-column block can span. 6575af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // (2) Nested block-level children with only block-level ancestors between them and the multi-column block can span. 6585af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // (3) Nested children with block or inline ancestors between them and the multi-column block can span (this is when we 6595af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // cross the streams and have to cope with both types of continuations mixed together). 660545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // This function currently supports (1) and (2). 661545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* columnsBlockAncestor = 0; 662b52229f8ad5e8b3632305005e437104c11eba942Steve Block if (!newChild->isText() && newChild->style()->columnSpan() && !newChild->isBeforeOrAfterContent() 663b52229f8ad5e8b3632305005e437104c11eba942Steve Block && !newChild->isFloatingOrPositioned() && !newChild->isInline() && !isAnonymousColumnSpanBlock()) { 664545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (style()->specifiesColumns()) 665545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch columnsBlockAncestor = this; 666bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen else if (parent() && parent()->isRenderBlock()) 667545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch columnsBlockAncestor = toRenderBlock(parent())->containingColumnsBlock(false); 668545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } 669545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return columnsBlockAncestor; 6705af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 6715af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 6725af96e2c7b73ebc627c6894727826a7576d31758Leon Clarkevoid RenderBlock::addChildIgnoringAnonymousColumnBlocks(RenderObject* newChild, RenderObject* beforeChild) 6738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 6748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Make sure we don't append things after :after-generated content if we have it. 675dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block if (!beforeChild) { 676dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block RenderObject* lastRenderer = lastChild(); 677dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block if (isAfterContent(lastRenderer)) 678dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block beforeChild = lastRenderer; 679dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block else if (lastRenderer && lastRenderer->isAnonymousBlock() && isAfterContent(lastRenderer->lastChild())) 680dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block beforeChild = lastRenderer->lastChild(); 681dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block } 6828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the requested beforeChild is not one of our children, then this is because 6848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // there is an anonymous container within this object that contains the beforeChild. 6858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (beforeChild && beforeChild->parent() != this) { 6868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* anonymousChild = beforeChild->parent(); 6878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(anonymousChild); 6888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (anonymousChild->parent() != this) 6908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project anonymousChild = anonymousChild->parent(); 6918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(anonymousChild->isAnonymous()); 6938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (anonymousChild->isAnonymousBlock()) { 6958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Insert the child into the anonymous block box instead of here. 6968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (newChild->isInline() || beforeChild->parent()->firstChild() != beforeChild) 6978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project beforeChild->parent()->addChild(newChild, beforeChild); 6988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 6998f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian addChild(newChild, beforeChild->parent()); 7008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 7018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(anonymousChild->isTable()); 7048f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if ((newChild->isTableCol() && newChild->style()->display() == TABLE_COLUMN_GROUP) 7058f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian || (newChild->isRenderBlock() && newChild->style()->display() == TABLE_CAPTION) 7068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project || newChild->isTableSection() 7078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project || newChild->isTableRow() 7088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project || newChild->isTableCell()) { 7098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Insert into the anonymous table. 7108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project anonymousChild->addChild(newChild, beforeChild); 7118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 7128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Go on to insert before the anonymous table. 7158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project beforeChild = anonymousChild; 7168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7184a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // Check for a spanning element in columns. 7194a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch RenderBlock* columnsBlockAncestor = columnsBlockForSpanningElement(newChild); 7204a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch if (columnsBlockAncestor) { 7214a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // We are placing a column-span element inside a block. 7224a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch RenderBlock* newBox = createAnonymousColumnSpanBlock(); 7234a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch 7244a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch if (columnsBlockAncestor != this) { 7254a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // We are nested inside a multi-column element and are being split by the span. We have to break up 7264a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // our block into continuations. 7274a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch RenderBoxModelObject* oldContinuation = continuation(); 7284a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch setContinuation(newBox); 7294a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch 7304a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // Someone may have put a <p> inside a <q>, causing a split. When this happens, the :after content 7314a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // has to move into the inline continuation. Call updateBeforeAfterContent to ensure that our :after 7324a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // content gets properly destroyed. 7334a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch bool isLastChild = (beforeChild == lastChild()); 7344a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch if (document()->usesBeforeAfterRules()) 7354a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch children()->updateBeforeAfterContent(this, AFTER); 7364a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch if (isLastChild && beforeChild != lastChild()) 7374a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch beforeChild = 0; // We destroyed the last child, so now we need to update our insertion 7384a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // point to be 0. It's just a straight append now. 7394a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch 7404a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch splitFlow(beforeChild, newBox, newChild, oldContinuation); 7414a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch return; 7424a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch } 7434a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch 7444a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // We have to perform a split of this block's children. This involves creating an anonymous block box to hold 7454a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // the column-spanning |newChild|. We take all of the children from before |newChild| and put them into 7464a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // one anonymous columns block, and all of the children after |newChild| go into another anonymous block. 7474a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch makeChildrenAnonymousColumnBlocks(beforeChild, newBox, newChild); 7484a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch return; 7494a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch } 7504a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch 7514a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch bool madeBoxesNonInline = false; 7524a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch 7538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // A block has to either have all of its children inline, or all of its children as blocks. 7548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // So, if our children are currently inline and a block child has to be inserted, we move all our 7558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // inline children into anonymous block boxes. 7568f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (childrenInline() && !newChild->isInline() && !newChild->isFloatingOrPositioned()) { 7578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // This is a block with inline content. Wrap the inline content in anonymous blocks. 7588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project makeChildrenNonInline(beforeChild); 7598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project madeBoxesNonInline = true; 7608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (beforeChild && beforeChild->parent() != this) { 7628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project beforeChild = beforeChild->parent(); 7638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(beforeChild->isAnonymousBlock()); 7648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(beforeChild->parent() == this); 7658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7668f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } else if (!childrenInline() && (newChild->isFloatingOrPositioned() || newChild->isInline())) { 7678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If we're inserting an inline child but all of our children are blocks, then we have to make sure 7688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // it is put into an anomyous block box. We try to use an existing anonymous box if possible, otherwise 7698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // a new one is created and inserted into our list of children in the appropriate position. 7708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* afterChild = beforeChild ? beforeChild->previousSibling() : lastChild(); 7718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (afterChild && afterChild->isAnonymousBlock()) { 7738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project afterChild->addChild(newChild); 7748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 7758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (newChild->isInline()) { 7788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // No suitable existing anonymous box - create a new one. 7798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderBlock* newBox = createAnonymousBlock(); 7808f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBox::addChild(newBox, beforeChild); 7818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project newBox->addChild(newChild); 7828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 7838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7868f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBox::addChild(newChild, beforeChild); 7878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7888f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (madeBoxesNonInline && parent() && isAnonymousBlock() && parent()->isRenderBlock()) 7898f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian toRenderBlock(parent())->removeLeftoverAnonymousBlock(this); 7908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // this object may be dead here 7918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 7928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7935af96e2c7b73ebc627c6894727826a7576d31758Leon Clarkevoid RenderBlock::addChild(RenderObject* newChild, RenderObject* beforeChild) 7945af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 795545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (continuation() && !isAnonymousBlock()) 796545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return addChildToContinuation(newChild, beforeChild); 797545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return addChildIgnoringContinuation(newChild, beforeChild); 798545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch} 799545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 800545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdochvoid RenderBlock::addChildIgnoringContinuation(RenderObject* newChild, RenderObject* beforeChild) 801545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch{ 802545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (!isAnonymousBlock() && firstChild() && (firstChild()->isAnonymousColumnsBlock() || firstChild()->isAnonymousColumnSpanBlock())) 8035af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return addChildToAnonymousColumnBlocks(newChild, beforeChild); 8045af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return addChildIgnoringAnonymousColumnBlocks(newChild, beforeChild); 8055af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 8065af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 8078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstatic void getInlineRun(RenderObject* start, RenderObject* boundary, 8088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject*& inlineRunStart, 8098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject*& inlineRunEnd) 8108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 8118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Beginning at |start| we find the largest contiguous run of inlines that 8128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // we can. We denote the run with start and end points, |inlineRunStart| 8138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // and |inlineRunEnd|. Note that these two values may be the same if 8148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // we encounter only one inline. 8158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 8168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We skip any non-inlines we encounter as long as we haven't found any 8178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // inlines yet. 8188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 8198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // |boundary| indicates a non-inclusive boundary point. Regardless of whether |boundary| 8208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // is inline or not, we will not include it in a run with inlines before it. It's as though we encountered 8218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // a non-inline. 8228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Start by skipping as many non-inlines as we can. 8248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject * curr = start; 8258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool sawInline; 8268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project do { 8278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (curr && !(curr->isInline() || curr->isFloatingOrPositioned())) 8288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project curr = curr->nextSibling(); 8298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineRunStart = inlineRunEnd = curr; 8318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!curr) 8338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; // No more inline children to be found. 8348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project sawInline = curr->isInline(); 8368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project curr = curr->nextSibling(); 8388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (curr && (curr->isInline() || curr->isFloatingOrPositioned()) && (curr != boundary)) { 8398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineRunEnd = curr; 8408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (curr->isInline()) 8418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project sawInline = true; 8428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project curr = curr->nextSibling(); 8438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 8448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } while (!sawInline); 8458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 8468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::deleteLineBoxTree() 8488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 8498f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian m_lineBoxes.deleteLineBoxTree(renderArena()); 8508f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 8518f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 8520bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben MurdochRootInlineBox* RenderBlock::createRootInlineBox() 8538f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 8548f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return new (renderArena()) RootInlineBox(this); 8558f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 8568f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 8570bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben MurdochRootInlineBox* RenderBlock::createAndAppendRootInlineBox() 8588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 8590bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch RootInlineBox* rootBox = createRootInlineBox(); 8608f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian m_lineBoxes.appendLineBox(rootBox); 8618f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return rootBox; 8628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 863643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 8645af96e2c7b73ebc627c6894727826a7576d31758Leon Clarkevoid RenderBlock::moveChildTo(RenderBlock* to, RenderObject* child, RenderObject* beforeChild, bool fullRemoveInsert) 865643ca7872b450ea4efacab6188849e5aac2ba161Steve Block{ 866643ca7872b450ea4efacab6188849e5aac2ba161Steve Block ASSERT(this == child->parent()); 867643ca7872b450ea4efacab6188849e5aac2ba161Steve Block ASSERT(!beforeChild || to == beforeChild->parent()); 8685af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke to->children()->insertChildNode(to, children()->removeChildNode(this, child, fullRemoveInsert), beforeChild, fullRemoveInsert); 869d0825bca7fe65beaee391d30da42e937db621564Steve Block} 870d0825bca7fe65beaee391d30da42e937db621564Steve Block 8715af96e2c7b73ebc627c6894727826a7576d31758Leon Clarkevoid RenderBlock::moveChildrenTo(RenderBlock* to, RenderObject* startChild, RenderObject* endChild, RenderObject* beforeChild, bool fullRemoveInsert) 872d0825bca7fe65beaee391d30da42e937db621564Steve Block{ 873d0825bca7fe65beaee391d30da42e937db621564Steve Block ASSERT(!beforeChild || to == beforeChild->parent()); 8745af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderObject* nextChild = startChild; 8755af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke while (nextChild && nextChild != endChild) { 876d0825bca7fe65beaee391d30da42e937db621564Steve Block RenderObject* child = nextChild; 877d0825bca7fe65beaee391d30da42e937db621564Steve Block nextChild = child->nextSibling(); 8785af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke to->children()->insertChildNode(to, children()->removeChildNode(this, child, fullRemoveInsert), beforeChild, fullRemoveInsert); 8795af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (child == endChild) 8805af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return; 881d0825bca7fe65beaee391d30da42e937db621564Steve Block } 882d0825bca7fe65beaee391d30da42e937db621564Steve Block} 883d0825bca7fe65beaee391d30da42e937db621564Steve Block 8848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::makeChildrenNonInline(RenderObject *insertionPoint) 8858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 8868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // makeChildrenNonInline takes a block whose children are *all* inline and it 8878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // makes sure that inline children are coalesced under anonymous 8888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // blocks. If |insertionPoint| is defined, then it represents the insertion point for 8898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the new block child that is causing us to have to wrap all the inlines. This 8908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // means that we cannot coalesce inlines before |insertionPoint| with inlines following 8918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // |insertionPoint|, because the new child is going to be inserted in between the inlines, 8928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // splitting them. 8938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(isInlineBlockOrInlineTable() || !isInline()); 8948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(!insertionPoint || insertionPoint->parent() == this); 8958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8968f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian setChildrenInline(false); 8978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject *child = firstChild(); 8998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!child) 9008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 9018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 9028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project deleteLineBoxTree(); 9038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 9048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (child) { 9058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject *inlineRunStart, *inlineRunEnd; 9068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project getInlineRun(child, insertionPoint, inlineRunStart, inlineRunEnd); 9078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 9088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!inlineRunStart) 9098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 9108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 9118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project child = inlineRunEnd->nextSibling(); 9128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 9138f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBlock* block = createAnonymousBlock(); 9148f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian children()->insertChildNode(this, block, inlineRunStart); 9155af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke moveChildrenTo(block, inlineRunStart, child); 9168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 9178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 9188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#ifndef NDEBUG 9198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderObject *c = firstChild(); c; c = c->nextSibling()) 9208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(!c->isInline()); 9218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#endif 9228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 9238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project repaint(); 9248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 9258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 9268f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::removeLeftoverAnonymousBlock(RenderBlock* child) 9278f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 9288f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian ASSERT(child->isAnonymousBlock()); 9298f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian ASSERT(!child->childrenInline()); 9308f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 9315af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (child->continuation() || (child->firstChild() && (child->isAnonymousColumnSpanBlock() || child->isAnonymousColumnsBlock()))) 9328f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return; 9338f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 9348f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderObject* firstAnChild = child->m_children.firstChild(); 9358f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderObject* lastAnChild = child->m_children.lastChild(); 9368f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (firstAnChild) { 9378f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderObject* o = firstAnChild; 9388f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian while (o) { 9398f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian o->setParent(this); 9408f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian o = o->nextSibling(); 9418f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 9428f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian firstAnChild->setPreviousSibling(child->previousSibling()); 9438f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian lastAnChild->setNextSibling(child->nextSibling()); 9448f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (child->previousSibling()) 9458f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->previousSibling()->setNextSibling(firstAnChild); 9468f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (child->nextSibling()) 9478f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->nextSibling()->setPreviousSibling(lastAnChild); 9485af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 9495af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (child == m_children.firstChild()) 9505af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke m_children.setFirstChild(firstAnChild); 9515af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (child == m_children.lastChild()) 9525af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke m_children.setLastChild(lastAnChild); 9538f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } else { 9545af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (child == m_children.firstChild()) 9555af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke m_children.setFirstChild(child->nextSibling()); 9565af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (child == m_children.lastChild()) 9575af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke m_children.setLastChild(child->previousSibling()); 9585af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 9598f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (child->previousSibling()) 9608f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->previousSibling()->setNextSibling(child->nextSibling()); 9618f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (child->nextSibling()) 9628f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->nextSibling()->setPreviousSibling(child->previousSibling()); 9638f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 9648f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->setParent(0); 9658f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->setPreviousSibling(0); 9668f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->setNextSibling(0); 9678f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 9688f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->children()->setFirstChild(0); 9698f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->m_next = 0; 9708f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 9718f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->destroy(); 9728f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 9738f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 9745af96e2c7b73ebc627c6894727826a7576d31758Leon Clarkestatic bool canMergeContiguousAnonymousBlocks(RenderObject* oldChild, RenderObject* prev, RenderObject* next) 9755af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 9765af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (oldChild->documentBeingDestroyed() || oldChild->isInline() || oldChild->virtualContinuation()) 9775af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return false; 9785af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 9792bde8e466a4451c7319e3a072d118917957d6554Steve Block if (oldChild->parent() && oldChild->parent()->isDetails()) 9802bde8e466a4451c7319e3a072d118917957d6554Steve Block return false; 9812bde8e466a4451c7319e3a072d118917957d6554Steve Block 98265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch if ((prev && (!prev->isAnonymousBlock() || toRenderBlock(prev)->continuation() || toRenderBlock(prev)->beingDestroyed())) 98365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch || (next && (!next->isAnonymousBlock() || toRenderBlock(next)->continuation() || toRenderBlock(next)->beingDestroyed()))) 9845af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return false; 9855af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 986967717af5423377c967781471ee106e2bb4e11c8Ben Murdoch // FIXME: This check isn't required when inline run-ins can't be split into continuations. 987967717af5423377c967781471ee106e2bb4e11c8Ben Murdoch if (prev && prev->firstChild() && prev->firstChild()->isInline() && prev->firstChild()->isRunIn()) 988967717af5423377c967781471ee106e2bb4e11c8Ben Murdoch return false; 989967717af5423377c967781471ee106e2bb4e11c8Ben Murdoch 9905af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if ((prev && (prev->isRubyRun() || prev->isRubyBase())) 9915af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke || (next && (next->isRubyRun() || next->isRubyBase()))) 9925af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return false; 9935af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 9945af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (!prev || !next) 9955af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return true; 9965af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 9975af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Make sure the types of the anonymous blocks match up. 9985af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return prev->isAnonymousColumnsBlock() == next->isAnonymousColumnsBlock() 999cad810f21b803229eb11403f9209855525a25d57Steve Block && prev->isAnonymousColumnSpanBlock() == next->isAnonymousColumnSpanBlock(); 10005af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 10015af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 10028f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::removeChild(RenderObject* oldChild) 10038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 10048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If this child is a block, and if our previous and next siblings are 10058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // both anonymous blocks with inline content, then we can go ahead and 10068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // fold the inline content back together. 10078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* prev = oldChild->previousSibling(); 10088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* next = oldChild->nextSibling(); 10095af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke bool canMergeAnonymousBlocks = canMergeContiguousAnonymousBlocks(oldChild, prev, next); 10105af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (canMergeAnonymousBlocks && prev && next) { 10118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project prev->setNeedsLayoutAndPrefWidthsRecalc(); 10128f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBlock* nextBlock = toRenderBlock(next); 10138f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBlock* prevBlock = toRenderBlock(prev); 10145af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 10155af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (prev->childrenInline() != next->childrenInline()) { 10165af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* inlineChildrenBlock = prev->childrenInline() ? prevBlock : nextBlock; 10175af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* blockChildrenBlock = prev->childrenInline() ? nextBlock : prevBlock; 10185af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 10195af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Place the inline children block inside of the block children block instead of deleting it. 10205af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // In order to reuse it, we have to reset it to just be a generic anonymous block. Make sure 10215af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // to clear out inherited column properties by just making a new style, and to also clear the 10225af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // column span flag if it is set. 10235af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke ASSERT(!inlineChildrenBlock->continuation()); 10242bde8e466a4451c7319e3a072d118917957d6554Steve Block RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyle(style()); 10255af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke children()->removeChildNode(this, inlineChildrenBlock, inlineChildrenBlock->hasLayer()); 10265af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke inlineChildrenBlock->setStyle(newStyle); 10275af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 10285af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Now just put the inlineChildrenBlock inside the blockChildrenBlock. 10295af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke blockChildrenBlock->children()->insertChildNode(blockChildrenBlock, inlineChildrenBlock, prev == inlineChildrenBlock ? blockChildrenBlock->firstChild() : 0, 10305af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke inlineChildrenBlock->hasLayer() || blockChildrenBlock->hasLayer()); 10315af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke next->setNeedsLayoutAndPrefWidthsRecalc(); 1032cad810f21b803229eb11403f9209855525a25d57Steve Block 1033cad810f21b803229eb11403f9209855525a25d57Steve Block // inlineChildrenBlock got reparented to blockChildrenBlock, so it is no longer a child 1034cad810f21b803229eb11403f9209855525a25d57Steve Block // of "this". we null out prev or next so that is not used later in the function. 1035cad810f21b803229eb11403f9209855525a25d57Steve Block if (inlineChildrenBlock == prevBlock) 1036cad810f21b803229eb11403f9209855525a25d57Steve Block prev = 0; 1037cad810f21b803229eb11403f9209855525a25d57Steve Block else 1038cad810f21b803229eb11403f9209855525a25d57Steve Block next = 0; 10395af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } else { 10405af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Take all the children out of the |next| block and put them in 10415af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // the |prev| block. 104265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch nextBlock->moveAllChildrenTo(prevBlock, nextBlock->hasLayer() || prevBlock->hasLayer()); 1043cad810f21b803229eb11403f9209855525a25d57Steve Block 10445af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Delete the now-empty block's lines and nuke it. 10455af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke nextBlock->deleteLineBoxTree(); 10465af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke nextBlock->destroy(); 1047cad810f21b803229eb11403f9209855525a25d57Steve Block next = 0; 10485af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } 10498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 10508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 10518f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBox::removeChild(oldChild); 10528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 10538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* child = prev ? prev : next; 10545af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (canMergeAnonymousBlocks && child && !child->previousSibling() && !child->nextSibling() && !isFlexibleBox()) { 10558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The removal has knocked us down to containing only a single anonymous 10568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // box. We can go ahead and pull the content right back up into our 10578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // box. 10588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project setNeedsLayoutAndPrefWidthsRecalc(); 10595af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke setChildrenInline(child->childrenInline()); 10605af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* anonBlock = toRenderBlock(children()->removeChildNode(this, child, child->hasLayer())); 10615af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke anonBlock->moveAllChildrenTo(this, child->hasLayer()); 10628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Delete the now-empty block's lines and nuke it. 10638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project anonBlock->deleteLineBoxTree(); 10648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project anonBlock->destroy(); 10658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1066d0825bca7fe65beaee391d30da42e937db621564Steve Block 10675af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (!firstChild() && !documentBeingDestroyed()) { 10685af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // If this was our last child be sure to clear out our line boxes. 10695af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (childrenInline()) 10705af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke lineBoxes()->deleteLineBoxes(renderArena()); 10715af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } 10728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 10738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 10748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::isSelfCollapsingBlock() const 10758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 10768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We are not self-collapsing if we 10778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (a) have a non-zero height according to layout (an optimization to avoid wasting time) 10788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (b) are a table, 10798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (c) have border/padding, 10808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (d) have a min-height 10818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (e) have specified that one of our margins can't collapse using a CSS extension 1082a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (logicalHeight() > 0 1083a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch || isTable() || borderAndPaddingLogicalHeight() 1084a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch || style()->logicalMinHeight().isPositive() 1085bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen || style()->marginBeforeCollapse() == MSEPARATE || style()->marginAfterCollapse() == MSEPARATE) 10868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 10878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1088a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch Length logicalHeightLength = style()->logicalHeight(); 1089a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bool hasAutoHeight = logicalHeightLength.isAuto(); 1090a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (logicalHeightLength.isPercent() && !document()->inQuirksMode()) { 10918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project hasAutoHeight = true; 10928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderBlock* cb = containingBlock(); !cb->isRenderView(); cb = cb->containingBlock()) { 1093a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (cb->style()->logicalHeight().isFixed() || cb->isTableCell()) 10948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project hasAutoHeight = false; 10958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 10968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 10978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 10988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the height is 0 or auto, then whether or not we are a self-collapsing block depends 10998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // on whether we have content that is all self-collapsing or not. 1100a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (hasAutoHeight || ((logicalHeightLength.isFixed() || logicalHeightLength.isPercent()) && logicalHeightLength.isZero())) { 11018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the block has inline children, see if we generated any line boxes. If we have any 11028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // line boxes, then we can't be self-collapsing, since we have content. 11038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) 11048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return !firstLineBox(); 11058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Whether or not we collapse is dependent on whether all our normal flow children 11078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // are also self-collapsing. 1108635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (RenderBox* child = firstChildBox(); child; child = child->nextSiblingBox()) { 11098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isFloatingOrPositioned()) 11108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 11118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!child->isSelfCollapsingBlock()) 11128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 11138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 11148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 11158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 11168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 11178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 11188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11190bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdochvoid RenderBlock::startDelayUpdateScrollInfo() 11200bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch{ 11210bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch if (gDelayUpdateScrollInfo == 0) { 11220bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch ASSERT(!gDelayedUpdateScrollInfoSet); 11230bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch gDelayedUpdateScrollInfoSet = new DelayedUpdateScrollInfoSet; 11240bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch } 11250bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch ASSERT(gDelayedUpdateScrollInfoSet); 11260bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch ++gDelayUpdateScrollInfo; 11270bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch} 11280bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 11290bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdochvoid RenderBlock::finishDelayUpdateScrollInfo() 11300bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch{ 11310bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch --gDelayUpdateScrollInfo; 11320bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch ASSERT(gDelayUpdateScrollInfo >= 0); 11330bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch if (gDelayUpdateScrollInfo == 0) { 11340bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch ASSERT(gDelayedUpdateScrollInfoSet); 11350bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 1136643ca7872b450ea4efacab6188849e5aac2ba161Steve Block OwnPtr<DelayedUpdateScrollInfoSet> infoSet(gDelayedUpdateScrollInfoSet); 1137643ca7872b450ea4efacab6188849e5aac2ba161Steve Block gDelayedUpdateScrollInfoSet = 0; 1138643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 1139643ca7872b450ea4efacab6188849e5aac2ba161Steve Block for (DelayedUpdateScrollInfoSet::iterator it = infoSet->begin(); it != infoSet->end(); ++it) { 11400bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch RenderBlock* block = *it; 11410bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch if (block->hasOverflowClip()) { 11420bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch block->layer()->updateScrollInfoAfterLayout(); 11430bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch } 11440bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch } 11450bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch } 11460bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch} 11470bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 11480bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdochvoid RenderBlock::updateScrollInfoAfterLayout() 11490bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch{ 11500bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch if (hasOverflowClip()) { 11510bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch if (gDelayUpdateScrollInfo) 11520bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch gDelayedUpdateScrollInfoSet->add(this); 11530bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch else 11540bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch layer()->updateScrollInfoAfterLayout(); 11550bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch } 11560bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch} 11570bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 11588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::layout() 11598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 11608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Update our first letter info now. 11618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project updateFirstLetter(); 11628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Table cells call layoutBlock directly, so don't add any logic here. Put code into 11648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // layoutBlock(). 11658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project layoutBlock(false); 11668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // It's safe to check for control clip here, since controls can never be table cells. 1168231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // If we have a lightweight clip, there can never be any overflow from children. 1169231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (hasControlClip() && m_overflow) 1170231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block clearLayoutOverflow(); 11718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 11728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1173f05b935882198ccf7d81675736e3aeb089c5113aBen Murdochvoid RenderBlock::layoutBlock(bool relayoutChildren, int pageLogicalHeight) 11748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 11758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(needsLayout()); 11768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isInline() && !isInlineBlockOrInlineTable()) // Inline <form>s inside various table elements can 11788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; // cause us to come in here. Just bail. 11798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11802bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!relayoutChildren && simplifiedLayout()) 11818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 11828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11838f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian LayoutRepainter repainter(*this, m_everHadLayout && checkForRepaintDuringLayout()); 11848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1185a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int oldWidth = logicalWidth(); 11868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int oldColumnWidth = desiredColumnWidth(); 11878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1188bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen computeLogicalWidth(); 11898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project calcColumnWidth(); 11908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1191231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block m_overflow.clear(); 11928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1193bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (oldWidth != logicalWidth() || oldColumnWidth != desiredColumnWidth()) 11948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project relayoutChildren = true; 11958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#ifdef ANDROID_LAYOUT 119723e9dd818a876304304944c844be7625f63383c4Shimeng (Simon) Wang checkAndSetRelayoutChildren(&relayoutChildren); 11988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#endif 11998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 12008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project clearFloats(); 12018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1202bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int previousHeight = logicalHeight(); 1203bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setLogicalHeight(0); 1204f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch bool hasSpecifiedPageLogicalHeight = false; 1205f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch bool pageLogicalHeightChanged = false; 120668513a70bcd92384395513322f1b801e7bf9c729Steve Block ColumnInfo* colInfo = columnInfo(); 120768513a70bcd92384395513322f1b801e7bf9c729Steve Block if (hasColumns()) { 1208f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!pageLogicalHeight) { 120968513a70bcd92384395513322f1b801e7bf9c729Steve Block // We need to go ahead and set our explicit page height if one exists, so that we can 121068513a70bcd92384395513322f1b801e7bf9c729Steve Block // avoid doing two layout passes. 1211bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen computeLogicalHeight(); 1212bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int columnHeight = contentLogicalHeight(); 121368513a70bcd92384395513322f1b801e7bf9c729Steve Block if (columnHeight > 0) { 1214f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch pageLogicalHeight = columnHeight; 1215f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch hasSpecifiedPageLogicalHeight = true; 121668513a70bcd92384395513322f1b801e7bf9c729Steve Block } 1217bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setLogicalHeight(0); 121868513a70bcd92384395513322f1b801e7bf9c729Steve Block } 1219f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (colInfo->columnHeight() != pageLogicalHeight && m_everHadLayout) { 1220f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch colInfo->setColumnHeight(pageLogicalHeight); 1221f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch pageLogicalHeightChanged = true; 122268513a70bcd92384395513322f1b801e7bf9c729Steve Block } 122368513a70bcd92384395513322f1b801e7bf9c729Steve Block 1224f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!hasSpecifiedPageLogicalHeight && !pageLogicalHeight) 122568513a70bcd92384395513322f1b801e7bf9c729Steve Block colInfo->clearForcedBreaks(); 122668513a70bcd92384395513322f1b801e7bf9c729Steve Block } 122768513a70bcd92384395513322f1b801e7bf9c729Steve Block 1228f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch LayoutStateMaintainer statePusher(view(), this, IntSize(x(), y()), hasColumns() || hasTransform() || hasReflection() || style()->isFlippedBlocksWritingMode(), pageLogicalHeight, pageLogicalHeightChanged, colInfo); 1229635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 12305f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // We use four values, maxTopPos, maxTopNeg, maxBottomPos, and maxBottomNeg, to track 12318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // our current maximal positive and negative margins. These values are used when we 12328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // are collapsed with adjacent blocks, so for example, if you have block A and B 12338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // collapsing together, then you'd take the maximal positive margin from both A and B 12348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // and subtract it from the maximal negative margin from both A and B to get the 12358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // true collapsed margin. This algorithm is recursive, so when we finish layout() 12368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // our block knows its current maximal positive/negative values. 12378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 12388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Start out by setting our margin values to our current margins. Table cells have 12398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // no margins, so we don't fill in the values for table cells. 12408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool isCell = isTableCell(); 12418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!isCell) { 12428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project initMaxMarginValues(); 124368513a70bcd92384395513322f1b801e7bf9c729Steve Block 1244bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setMarginBeforeQuirk(style()->marginBefore().quirk()); 1245bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setMarginAfterQuirk(style()->marginAfter().quirk()); 12468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 12478f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian Node* n = node(); 12488f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (n && n->hasTagName(formTag) && static_cast<HTMLFormElement*>(n)->isMalformed()) { 12498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // See if this form is malformed (i.e., unclosed). If so, don't give the form 12508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // a bottom margin. 1251bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setMaxMarginAfterValues(0, 0); 12528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 125368513a70bcd92384395513322f1b801e7bf9c729Steve Block 125468513a70bcd92384395513322f1b801e7bf9c729Steve Block setPaginationStrut(0); 12558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 12568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 12578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // For overflow:scroll blocks, ensure we have both scrollbars in place always. 12588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (scrollsOverflow()) { 12598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->overflowX() == OSCROLL) 12608f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian layer()->setHasHorizontalScrollbar(true); 12618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->overflowY() == OSCROLL) 12628f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian layer()->setHasVerticalScrollbar(true); 12638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 12648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1265a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int repaintLogicalTop = 0; 1266a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int repaintLogicalBottom = 0; 1267a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int maxFloatLogicalBottom = 0; 1268e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (!firstChild() && !isAnonymousBlock()) 12696c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen setChildrenInline(true); 12708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) 1271a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch layoutInlineChildren(relayoutChildren, repaintLogicalTop, repaintLogicalBottom); 12728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 1273a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch layoutBlockChildren(relayoutChildren, maxFloatLogicalBottom); 12748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 12758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Expand our intrinsic height to encompass floats. 1276a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int toAdd = borderAfter() + paddingAfter() + scrollbarLogicalHeight(); 1277a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (lowestFloatLogicalBottom() > (logicalHeight() - toAdd) && expandsToEncloseOverhangingFloats()) 1278a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(lowestFloatLogicalBottom() + toAdd); 12798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1280f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (layoutColumns(hasSpecifiedPageLogicalHeight, pageLogicalHeight, statePusher)) 128168513a70bcd92384395513322f1b801e7bf9c729Steve Block return; 128268513a70bcd92384395513322f1b801e7bf9c729Steve Block 12838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Calculate our new height. 1284bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int oldHeight = logicalHeight(); 1285f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int oldClientAfterEdge = clientLogicalBottom(); 1286bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen computeLogicalHeight(); 1287bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int newHeight = logicalHeight(); 1288bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (oldHeight != newHeight) { 1289a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (oldHeight > newHeight && maxFloatLogicalBottom > newHeight && !childrenInline()) { 12908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // One of our children's floats may have become an overhanging float for us. We need to look for it. 12918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderObject* child = firstChild(); child; child = child->nextSibling()) { 12928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isBlockFlow() && !child->isFloatingOrPositioned()) { 12938f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBlock* block = toRenderBlock(child); 1294a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (block->lowestFloatLogicalBottom() + block->logicalTop() > newHeight) 1295a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch addOverhangingFloats(block, -block->logicalLeft(), -block->logicalTop(), false); 12968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 12978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 12988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 12998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1300231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 1301bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (previousHeight != newHeight) 13028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project relayoutChildren = true; 13038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1304231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block layoutPositionedObjects(relayoutChildren || isRoot()); 13058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1306f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // Add overflow from children (unless we're multi-column, since in that case all our child overflow is clipped anyway). 1307f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch computeOverflow(oldClientAfterEdge); 1308231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 1309635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project statePusher.pop(); 13108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1311f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (view()->layoutState()->m_pageLogicalHeight) 13122fc2651226baac27029e38c9d6ef883fa32084dbSteve Block setPageLogicalOffset(view()->layoutState()->pageLogicalOffset(logicalTop())); 1313f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1314f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch updateLayerTransform(); 131568513a70bcd92384395513322f1b801e7bf9c729Steve Block 13168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Update our scroll information if we're overflow:auto/scroll/hidden now that we know if 13178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // we overflow or not. 13180bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch updateScrollInfoAfterLayout(); 13198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 13208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Repaint with our new bounds if they are different from our old bounds. 13218f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian bool didFullRepaint = repainter.repaintAfterLayout(); 1322a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!didFullRepaint && repaintLogicalTop != repaintLogicalBottom && (style()->visibility() == VISIBLE || enclosingLayer()->hasVisibleContent())) { 1323f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // FIXME: We could tighten up the left and right invalidation points if we let layoutInlineChildren fill them in based off the particular lines 1324f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // it had to lay out. We wouldn't need the hasOverflowClip() hack in that case either. 1325f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int repaintLogicalLeft = logicalLeftVisualOverflow(); 1326f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int repaintLogicalRight = logicalRightVisualOverflow(); 1327f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (hasOverflowClip()) { 1328f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // If we have clipped overflow, we should use layout overflow as well, since visual overflow from lines didn't propagate to our block's overflow. 1329f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // Note the old code did this as well but even for overflow:visible. The addition of hasOverflowClip() at least tightens up the hack a bit. 1330f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // layoutInlineChildren should be patched to compute the entire repaint rect. 1331f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch repaintLogicalLeft = min(repaintLogicalLeft, logicalLeftLayoutOverflow()); 1332f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch repaintLogicalRight = max(repaintLogicalRight, logicalRightLayoutOverflow()); 1333f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 1334a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 1335a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch IntRect repaintRect; 13362bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 1337a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch repaintRect = IntRect(repaintLogicalLeft, repaintLogicalTop, repaintLogicalRight - repaintLogicalLeft, repaintLogicalBottom - repaintLogicalTop); 1338a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch else 1339a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch repaintRect = IntRect(repaintLogicalTop, repaintLogicalLeft, repaintLogicalBottom - repaintLogicalTop, repaintLogicalRight - repaintLogicalLeft); 13408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1341e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block // The repaint rect may be split across columns, in which case adjustRectForColumns() will return the union. 1342e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block adjustRectForColumns(repaintRect); 13438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 13448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project repaintRect.inflate(maximalOutlineSize(PaintPhaseOutline)); 13458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 13468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (hasOverflowClip()) { 13478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Adjust repaint rect for scroll offset 1348dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block repaintRect.move(-layer()->scrolledContentOffset()); 13498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 13508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Don't allow this rect to spill out of our overflow box. 1351635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project repaintRect.intersect(IntRect(0, 0, width(), height())); 13528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 13538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 13548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Make sure the rect is still non-empty after intersecting for overflow above 13558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!repaintRect.isEmpty()) { 13568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project repaintRectangle(repaintRect); // We need to do a partial repaint of our content. 13578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (hasReflection()) 13585f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian repaintRectangle(reflectedRect(repaintRect)); 13598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 13608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 13618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project setNeedsLayout(false); 13628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 13638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1364f05b935882198ccf7d81675736e3aeb089c5113aBen Murdochvoid RenderBlock::addOverflowFromChildren() 1365f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch{ 1366f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!hasColumns()) { 1367f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (childrenInline()) 1368f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch addOverflowFromInlineChildren(); 1369f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch else 1370f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch addOverflowFromBlockChildren(); 1371f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } else { 1372f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch ColumnInfo* colInfo = columnInfo(); 1373f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (columnCount(colInfo)) { 1374f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch IntRect lastRect = columnRectAt(colInfo, columnCount(colInfo) - 1); 13752bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) { 13762fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int overflowLeft = !style()->isLeftToRightDirection() ? min(0, lastRect.x()) : 0; 13772fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int overflowRight = style()->isLeftToRightDirection() ? max(width(), lastRect.maxX()) : 0; 13782fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int overflowHeight = borderBefore() + paddingBefore() + colInfo->columnHeight(); 13792fc2651226baac27029e38c9d6ef883fa32084dbSteve Block addLayoutOverflow(IntRect(overflowLeft, 0, overflowRight - overflowLeft, overflowHeight)); 13802bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!hasOverflowClip()) 13812bde8e466a4451c7319e3a072d118917957d6554Steve Block addVisualOverflow(IntRect(overflowLeft, 0, overflowRight - overflowLeft, overflowHeight)); 13822fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } else { 13832fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntRect lastRect = columnRectAt(colInfo, columnCount(colInfo) - 1); 13842fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int overflowTop = !style()->isLeftToRightDirection() ? min(0, lastRect.y()) : 0; 13852fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int overflowBottom = style()->isLeftToRightDirection() ? max(height(), lastRect.maxY()) : 0; 13862fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int overflowWidth = borderBefore() + paddingBefore() + colInfo->columnHeight(); 13872fc2651226baac27029e38c9d6ef883fa32084dbSteve Block addLayoutOverflow(IntRect(0, overflowTop, overflowWidth, overflowBottom - overflowTop)); 13882bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!hasOverflowClip()) 13892bde8e466a4451c7319e3a072d118917957d6554Steve Block addVisualOverflow(IntRect(0, overflowTop, overflowWidth, overflowBottom - overflowTop)); 13902fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 1391f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 1392f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 1393f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch} 1394f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1395f05b935882198ccf7d81675736e3aeb089c5113aBen Murdochvoid RenderBlock::computeOverflow(int oldClientAfterEdge, bool recomputeFloats) 1396f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch{ 1397f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // Add overflow from children. 1398f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch addOverflowFromChildren(); 1399f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1400f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!hasColumns() && (recomputeFloats || isRoot() || expandsToEncloseOverhangingFloats() || hasSelfPaintingLayer())) 1401f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch addOverflowFromFloats(); 1402f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1403f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // Add in the overflow from positioned objects. 1404f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch addOverflowFromPositionedObjects(); 1405f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1406f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (hasOverflowClip()) { 1407f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // When we have overflow clip, propagate the original spillout since it will include collapsed bottom margins 1408f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // and bottom padding. Set the axis we don't care about to be 1, since we want this overflow to always 1409f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // be considered reachable. 1410f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch IntRect clientRect(clientBoxRect()); 1411f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch IntRect rectToApply; 14122bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 1413f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch rectToApply = IntRect(clientRect.x(), clientRect.y(), 1, max(0, oldClientAfterEdge - clientRect.y())); 1414f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch else 1415f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch rectToApply = IntRect(clientRect.x(), clientRect.y(), max(0, oldClientAfterEdge - clientRect.x()), 1); 1416f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch addLayoutOverflow(rectToApply); 1417f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 1418f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1419f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // Add visual overflow from box-shadow and reflections. 1420f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch addShadowOverflow(); 1421f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch} 1422f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1423231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Blockvoid RenderBlock::addOverflowFromBlockChildren() 1424231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block{ 1425231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block for (RenderBox* child = firstChildBox(); child; child = child->nextSiblingBox()) { 1426231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (!child->isFloatingOrPositioned()) 1427231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block addOverflowFromChild(child); 1428231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 1429231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block} 1430231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 1431231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Blockvoid RenderBlock::addOverflowFromFloats() 1432231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block{ 1433231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (!m_floatingObjects) 1434231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block return; 143581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 143681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 143781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator end = floatingObjectSet.end(); 143881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 143981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 1440f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (r->m_isDescendant) 14412fc2651226baac27029e38c9d6ef883fa32084dbSteve Block addOverflowFromChild(r->m_renderer, IntSize(xPositionForFloatIncludingMargin(r), yPositionForFloatIncludingMargin(r))); 1442231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 1443231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block return; 1444231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block} 1445231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 1446f05b935882198ccf7d81675736e3aeb089c5113aBen Murdochvoid RenderBlock::addOverflowFromPositionedObjects() 1447f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch{ 1448f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!m_positionedObjects) 1449f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch return; 1450f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1451f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch RenderBox* positionedObject; 1452f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch Iterator end = m_positionedObjects->end(); 1453f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch for (Iterator it = m_positionedObjects->begin(); it != end; ++it) { 1454f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch positionedObject = *it; 1455f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1456f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // Fixed positioned elements don't contribute to layout overflow, since they don't scroll with the content. 1457f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (positionedObject->style()->position() != FixedPosition) 1458f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch addOverflowFromChild(positionedObject); 1459f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 1460f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch} 1461f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1462635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectbool RenderBlock::expandsToEncloseOverhangingFloats() const 1463635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project{ 1464bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen return isInlineBlockOrInlineTable() || isFloatingOrPositioned() || hasOverflowClip() || (parent() && parent()->isFlexibleBox()) 1465a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch || hasColumns() || isTableCell() || isFieldset() || isWritingModeRoot(); 1466635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} 1467635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 1468635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid RenderBlock::adjustPositionedBlock(RenderBox* child, const MarginInfo& marginInfo) 14698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 14702bde8e466a4451c7319e3a072d118917957d6554Steve Block bool isHorizontal = isHorizontalWritingMode(); 147181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch bool hasStaticBlockPosition = child->style()->hasStaticBlockPosition(isHorizontal); 147281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch RenderLayer* childLayer = child->layer(); 147381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 14742bde8e466a4451c7319e3a072d118917957d6554Steve Block childLayer->setStaticInlinePosition(borderAndPaddingStart()); 14752bde8e466a4451c7319e3a072d118917957d6554Steve Block 14762bde8e466a4451c7319e3a072d118917957d6554Steve Block int logicalTop = logicalHeight(); 14772bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!marginInfo.canCollapseWithMarginBefore()) { 14782bde8e466a4451c7319e3a072d118917957d6554Steve Block child->computeBlockDirectionMargins(this); 14792bde8e466a4451c7319e3a072d118917957d6554Steve Block int marginBefore = marginBeforeForChild(child); 14802bde8e466a4451c7319e3a072d118917957d6554Steve Block int collapsedBeforePos = marginInfo.positiveMargin(); 14812bde8e466a4451c7319e3a072d118917957d6554Steve Block int collapsedBeforeNeg = marginInfo.negativeMargin(); 14822bde8e466a4451c7319e3a072d118917957d6554Steve Block if (marginBefore > 0) { 14832bde8e466a4451c7319e3a072d118917957d6554Steve Block if (marginBefore > collapsedBeforePos) 14842bde8e466a4451c7319e3a072d118917957d6554Steve Block collapsedBeforePos = marginBefore; 14852bde8e466a4451c7319e3a072d118917957d6554Steve Block } else { 14862bde8e466a4451c7319e3a072d118917957d6554Steve Block if (-marginBefore > collapsedBeforeNeg) 14872bde8e466a4451c7319e3a072d118917957d6554Steve Block collapsedBeforeNeg = -marginBefore; 14888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 14892bde8e466a4451c7319e3a072d118917957d6554Steve Block logicalTop += (collapsedBeforePos - collapsedBeforeNeg) - marginBefore; 14902bde8e466a4451c7319e3a072d118917957d6554Steve Block } 14912bde8e466a4451c7319e3a072d118917957d6554Steve Block if (childLayer->staticBlockPosition() != logicalTop) { 14922bde8e466a4451c7319e3a072d118917957d6554Steve Block childLayer->setStaticBlockPosition(logicalTop); 14932bde8e466a4451c7319e3a072d118917957d6554Steve Block if (hasStaticBlockPosition) 1494643ca7872b450ea4efacab6188849e5aac2ba161Steve Block child->setChildNeedsLayout(true, false); 14958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 14968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 14978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 14988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::adjustFloatingBlock(const MarginInfo& marginInfo) 14998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 15008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The float should be positioned taking into account the bottom margin 15018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // of the previous flow. We add that margin into the height, get the 15028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // float positioned properly, and then subtract the margin out of the 15038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // height again. In the case of self-collapsing blocks, we always just 15048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // use the top margins, since the self-collapsing block collapsed its 15058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // own bottom margin into its top margin. 15068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 15078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Note also that the previous flow may collapse its margin into the top of 15088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // our block. If this is the case, then we do not add the margin in to our 15098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // height when computing the position of the float. This condition can be tested 1510bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // for by simply calling canCollapseWithMarginBefore. See 15118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // http://www.hixie.ch/tests/adhoc/css/box/block/margin-collapse/046.html for 15128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // an example of this scenario. 1513bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int marginOffset = marginInfo.canCollapseWithMarginBefore() ? 0 : marginInfo.margin(); 1514a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + marginOffset); 15158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project positionNewFloats(); 1516a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() - marginOffset); 15178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 15188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 15195f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianbool RenderBlock::handleSpecialChild(RenderBox* child, const MarginInfo& marginInfo) 15208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 15215f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // Handle in the given order 15225f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return handlePositionedChild(child, marginInfo) 15235f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian || handleFloatingChild(child, marginInfo) 15245f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian || handleRunInChild(child); 15258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 15268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 15278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 15285f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianbool RenderBlock::handlePositionedChild(RenderBox* child, const MarginInfo& marginInfo) 15298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 15308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isPositioned()) { 15318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project child->containingBlock()->insertPositionedObject(child); 15328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project adjustPositionedBlock(child, marginInfo); 15335f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return true; 15348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 15355f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return false; 15368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 15378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 15385f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianbool RenderBlock::handleFloatingChild(RenderBox* child, const MarginInfo& marginInfo) 15398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 15408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isFloating()) { 15418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project insertFloatingObject(child); 15428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project adjustFloatingBlock(marginInfo); 15435f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return true; 15448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 15455f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return false; 15468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 15478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 15485f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianbool RenderBlock::handleRunInChild(RenderBox* child) 15498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 15508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // See if we have a run-in element with inline children. If the 15518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // children aren't inline, then just treat the run-in as a normal 15528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // block. 1553231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (!child->isRunIn() || !child->childrenInline()) 1554231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block return false; 1555231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // FIXME: We don't handle non-block elements with run-in for now. 1556231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (!child->isRenderBlock()) 15575f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return false; 1558635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 15590bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch RenderBlock* blockRunIn = toRenderBlock(child); 15605f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian RenderObject* curr = blockRunIn->nextSibling(); 15619a26d18f4c7e98b479be700575d003f873214550John Reck if (!curr || !curr->isRenderBlock() || !curr->childrenInline() || curr->isRunIn() || curr->isAnonymous() || curr->isFloatingOrPositioned()) 15625f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return false; 15635f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 15645f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian RenderBlock* currBlock = toRenderBlock(curr); 15655f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 1566538b01d6410e7c7a5b2faabe7b84c80ddc32d5f3Steve Block // First we destroy any :before/:after content. It will be regenerated by the new inline. 1567538b01d6410e7c7a5b2faabe7b84c80ddc32d5f3Steve Block // Exception is if the run-in itself is generated. 1568538b01d6410e7c7a5b2faabe7b84c80ddc32d5f3Steve Block if (child->style()->styleType() != BEFORE && child->style()->styleType() != AFTER) { 1569538b01d6410e7c7a5b2faabe7b84c80ddc32d5f3Steve Block RenderObject* generatedContent; 1570538b01d6410e7c7a5b2faabe7b84c80ddc32d5f3Steve Block if (child->getCachedPseudoStyle(BEFORE) && (generatedContent = child->beforePseudoElementRenderer())) 1571538b01d6410e7c7a5b2faabe7b84c80ddc32d5f3Steve Block generatedContent->destroy(); 1572538b01d6410e7c7a5b2faabe7b84c80ddc32d5f3Steve Block if (child->getCachedPseudoStyle(AFTER) && (generatedContent = child->afterPseudoElementRenderer())) 1573538b01d6410e7c7a5b2faabe7b84c80ddc32d5f3Steve Block generatedContent->destroy(); 1574538b01d6410e7c7a5b2faabe7b84c80ddc32d5f3Steve Block } 1575538b01d6410e7c7a5b2faabe7b84c80ddc32d5f3Steve Block 15765f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // Remove the old child. 15775f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian children()->removeChildNode(this, blockRunIn); 1578635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 15795f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // Create an inline. 15805f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian Node* runInNode = blockRunIn->node(); 15815f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian RenderInline* inlineRunIn = new (renderArena()) RenderInline(runInNode ? runInNode : document()); 15825f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian inlineRunIn->setStyle(blockRunIn->style()); 15835f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 1584538b01d6410e7c7a5b2faabe7b84c80ddc32d5f3Steve Block // Move the nodes from the old child to the new child 15856c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen for (RenderObject* runInChild = blockRunIn->firstChild(); runInChild;) { 15866c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen RenderObject* nextSibling = runInChild->nextSibling(); 1587538b01d6410e7c7a5b2faabe7b84c80ddc32d5f3Steve Block blockRunIn->children()->removeChildNode(blockRunIn, runInChild, false); 1588538b01d6410e7c7a5b2faabe7b84c80ddc32d5f3Steve Block inlineRunIn->addChild(runInChild); // Use addChild instead of appendChildNode since it handles correct placement of the children relative to :after-generated content. 15896c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen runInChild = nextSibling; 15908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 15915f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 15922daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch // Now insert the new child under |currBlock|. Use addChild instead of insertChildNode since it handles correct placement of the children, esp where we cannot insert 15932daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch // anything before the first child. e.g. details tag. See https://bugs.webkit.org/show_bug.cgi?id=58228. 15942daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch currBlock->addChild(inlineRunIn, currBlock->firstChild()); 15955f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 15965f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // If the run-in had an element, we need to set the new renderer. 15975f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (runInNode) 15985f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian runInNode->setRenderer(inlineRunIn); 15995f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 1600bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // Destroy the block run-in, which includes deleting its line box tree. 1601bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen blockRunIn->deleteLineBoxTree(); 16025f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian blockRunIn->destroy(); 16035f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 16045f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // The block acts like an inline, so just null out its 16055f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // position. 16065f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 16075f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return true; 16088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 16098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 16108f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianint RenderBlock::collapseMargins(RenderBox* child, MarginInfo& marginInfo) 16118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1612a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Get the four margin values for the child and cache them. 1613a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch const MarginValues childMargins = marginValuesForChild(child); 1614a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 16158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Get our max pos and neg top margins. 1616a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int posTop = childMargins.positiveMarginBefore(); 1617a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int negTop = childMargins.negativeMarginBefore(); 16188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 16198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // For self-collapsing blocks, collapse our bottom margins into our 16208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // top to get new posTop and negTop values. 16218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isSelfCollapsingBlock()) { 1622a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch posTop = max(posTop, childMargins.positiveMarginAfter()); 1623a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch negTop = max(negTop, childMargins.negativeMarginAfter()); 16248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 16258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 16268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // See if the top margin is quirky. We only care if this child has 16278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // margins that will collapse with us. 1628bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen bool topQuirk = child->isMarginBeforeQuirk() || style()->marginBeforeCollapse() == MDISCARD; 16298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1630bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (marginInfo.canCollapseWithMarginBefore()) { 16318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // This child is collapsing with the top of the 16328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // block. If it has larger margin values, then we need to update 16338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // our own maximal values. 16345ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen if (!document()->inQuirksMode() || !marginInfo.quirkContainer() || !topQuirk) 1635a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setMaxMarginBeforeValues(max(posTop, maxPositiveMarginBefore()), max(negTop, maxNegativeMarginBefore())); 16368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 16378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The minute any of the margins involved isn't a quirk, don't 16388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // collapse it away, even if the margin is smaller (www.webreference.com 16398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // has an example of this, a <dt> with 0.8em author-specified inside 16408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // a <dl> inside a <td>. 1641a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!marginInfo.determinedMarginBeforeQuirk() && !topQuirk && (posTop - negTop)) { 1642bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setMarginBeforeQuirk(false); 1643bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen marginInfo.setDeterminedMarginBeforeQuirk(true); 16448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 16458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1646a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!marginInfo.determinedMarginBeforeQuirk() && topQuirk && !marginBefore()) 16478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We have no top margin and our top child has a quirky margin. 16488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We will pick up this quirky margin and pass it through. 16498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // This deals with the <td><div><p> case. 16508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Don't do this for a block that split two inlines though. You do 16518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // still apply margins in this case. 1652bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setMarginBeforeQuirk(true); 16538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 16548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1655bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (marginInfo.quirkContainer() && marginInfo.atBeforeSideOfBlock() && (posTop - negTop)) 1656bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen marginInfo.setMarginBeforeQuirk(topQuirk); 16578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1658a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int beforeCollapseLogicalTop = logicalHeight(); 1659a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTop = beforeCollapseLogicalTop; 16608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isSelfCollapsingBlock()) { 16618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // This child has no height. We need to compute our 16628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // position before we collapse the child's margins together, 16638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // so that we can get an accurate position for the zero-height block. 1664a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int collapsedBeforePos = max(marginInfo.positiveMargin(), childMargins.positiveMarginBefore()); 1665a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int collapsedBeforeNeg = max(marginInfo.negativeMargin(), childMargins.negativeMarginBefore()); 1666a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setMargin(collapsedBeforePos, collapsedBeforeNeg); 16678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 16688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Now collapse the child's margins together, which means examining our 16698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // bottom margin values as well. 1670a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setPositiveMarginIfLarger(childMargins.positiveMarginAfter()); 1671a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setNegativeMarginIfLarger(childMargins.negativeMarginAfter()); 16728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1673bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (!marginInfo.canCollapseWithMarginBefore()) 16748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We need to make sure that the position of the self-collapsing block 16758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // is correct, since it could have overflowing content 16768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // that needs to be positioned correctly (e.g., a block that 16778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // had a specified height of 0 but that actually had subcontent). 1678a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTop = logicalHeight() + collapsedBeforePos - collapsedBeforeNeg; 16798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 16808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 1681bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (child->style()->marginBeforeCollapse() == MSEPARATE) { 1682a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + marginInfo.margin() + marginBeforeForChild(child)); 1683a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTop = logicalHeight(); 16848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1685bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen else if (!marginInfo.atBeforeSideOfBlock() || 1686bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen (!marginInfo.canCollapseMarginBeforeWithChildren() 1687bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen && (!document()->inQuirksMode() || !marginInfo.quirkContainer() || !marginInfo.marginBeforeQuirk()))) { 16888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We're collapsing with a previous sibling's margins and not 16898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // with the top of the block. 1690a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + max(marginInfo.positiveMargin(), posTop) - max(marginInfo.negativeMargin(), negTop)); 1691a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTop = logicalHeight(); 16928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 16938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1694a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setPositiveMargin(childMargins.positiveMarginAfter()); 1695a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setNegativeMargin(childMargins.negativeMarginAfter()); 16968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 16978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (marginInfo.margin()) 1698bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen marginInfo.setMarginAfterQuirk(child->isMarginAfterQuirk() || style()->marginAfterCollapse() == MDISCARD); 16998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 17008f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 170168513a70bcd92384395513322f1b801e7bf9c729Steve Block // If margins would pull us past the top of the next page, then we need to pull back and pretend like the margins 170268513a70bcd92384395513322f1b801e7bf9c729Steve Block // collapsed into the page edge. 170368513a70bcd92384395513322f1b801e7bf9c729Steve Block bool paginated = view()->layoutState()->isPaginated(); 1704a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (paginated && logicalTop > beforeCollapseLogicalTop) { 1705a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int oldLogicalTop = logicalTop; 17062fc2651226baac27029e38c9d6ef883fa32084dbSteve Block logicalTop = min(logicalTop, nextPageLogicalTop(beforeCollapseLogicalTop)); 1707a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + (logicalTop - oldLogicalTop)); 170868513a70bcd92384395513322f1b801e7bf9c729Steve Block } 1709a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return logicalTop; 17108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 17118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 17128f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianint RenderBlock::clearFloatsIfNeeded(RenderBox* child, MarginInfo& marginInfo, int oldTopPosMargin, int oldTopNegMargin, int yPos) 17138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 17148f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int heightIncrease = getClearDelta(child, yPos); 17158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!heightIncrease) 17168f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return yPos; 17178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 17188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isSelfCollapsingBlock()) { 17198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // For self-collapsing blocks that clear, they can still collapse their 17208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // margins with following siblings. Reset the current margins to represent 17218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the self-collapsing block's margins only. 1722231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // CSS2.1 states: 1723231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // "An element that has had clearance applied to it never collapses its top margin with its parent block's bottom margin. 1724231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Therefore if we are at the bottom of the block, let's go ahead and reset margins to only include the 1725231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // self-collapsing block's bottom margin. 1726231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block bool atBottomOfBlock = true; 1727231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block for (RenderBox* curr = child->nextSiblingBox(); curr && atBottomOfBlock; curr = curr->nextSiblingBox()) { 1728231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (!curr->isFloatingOrPositioned()) 1729231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block atBottomOfBlock = false; 1730231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 1731a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 1732a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch MarginValues childMargins = marginValuesForChild(child); 1733231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (atBottomOfBlock) { 1734a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setPositiveMargin(childMargins.positiveMarginAfter()); 1735a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setNegativeMargin(childMargins.negativeMarginAfter()); 1736231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } else { 1737a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setPositiveMargin(max(childMargins.positiveMarginBefore(), childMargins.positiveMarginAfter())); 1738a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setNegativeMargin(max(childMargins.negativeMarginBefore(), childMargins.negativeMarginAfter())); 1739231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 17408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1741231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Adjust our height such that we are ready to be collapsed with subsequent siblings (or the bottom 1742231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // of the parent block). 1743bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setLogicalHeight(child->y() - max(0, marginInfo.margin())); 17448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else 17458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Increase our height by the amount we had to clear. 1746bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setLogicalHeight(height() + heightIncrease); 17478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1748bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (marginInfo.canCollapseWithMarginBefore()) { 17498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We can no longer collapse with the top of the block since a clear 17508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // occurred. The empty blocks collapse into the cleared block. 17518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: This isn't quite correct. Need clarification for what to do 17528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // if the height the cleared block is offset by is smaller than the 17538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // margins involved. 1754bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setMaxMarginBeforeValues(oldTopPosMargin, oldTopNegMargin); 1755bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen marginInfo.setAtBeforeSideOfBlock(false); 17568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 17578f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 17588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return yPos + heightIncrease; 17598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 17608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1761a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::estimateLogicalTopPosition(RenderBox* child, const MarginInfo& marginInfo) 17628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 17638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: We need to eliminate the estimation of vertical position, because when it's wrong we sometimes trigger a pathological 17648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // relayout if there are intruding floats. 1765a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTopEstimate = logicalHeight(); 1766bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (!marginInfo.canCollapseWithMarginBefore()) { 1767a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int childMarginBefore = child->selfNeedsLayout() ? marginBeforeForChild(child) : collapsedMarginBeforeForChild(child); 1768a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTopEstimate += max(marginInfo.margin(), childMarginBefore); 17698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 177068513a70bcd92384395513322f1b801e7bf9c729Steve Block 177168513a70bcd92384395513322f1b801e7bf9c729Steve Block bool paginated = view()->layoutState()->isPaginated(); 177268513a70bcd92384395513322f1b801e7bf9c729Steve Block 1773a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Adjust logicalTopEstimate down to the next page if the margins are so large that we don't fit on the current 177468513a70bcd92384395513322f1b801e7bf9c729Steve Block // page. 1775a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (paginated && logicalTopEstimate > logicalHeight()) 17762fc2651226baac27029e38c9d6ef883fa32084dbSteve Block logicalTopEstimate = min(logicalTopEstimate, nextPageLogicalTop(logicalHeight())); 177768513a70bcd92384395513322f1b801e7bf9c729Steve Block 1778a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTopEstimate += getClearDelta(child, logicalTopEstimate); 177968513a70bcd92384395513322f1b801e7bf9c729Steve Block 178068513a70bcd92384395513322f1b801e7bf9c729Steve Block if (paginated) { 178168513a70bcd92384395513322f1b801e7bf9c729Steve Block // If the object has a page or column break value of "before", then we should shift to the top of the next page. 1782a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTopEstimate = applyBeforeBreak(child, logicalTopEstimate); 178368513a70bcd92384395513322f1b801e7bf9c729Steve Block 178468513a70bcd92384395513322f1b801e7bf9c729Steve Block // For replaced elements and scrolled elements, we want to shift them to the next page if they don't fit on the current one. 1785a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTopEstimate = adjustForUnsplittableChild(child, logicalTopEstimate); 178668513a70bcd92384395513322f1b801e7bf9c729Steve Block 178768513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!child->selfNeedsLayout() && child->isRenderBlock()) 1788a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTopEstimate += toRenderBlock(child)->paginationStrut(); 178968513a70bcd92384395513322f1b801e7bf9c729Steve Block } 179068513a70bcd92384395513322f1b801e7bf9c729Steve Block 1791a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return logicalTopEstimate; 17928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 17938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1794a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::determineLogicalLeftPositionForChild(RenderBox* child) 17958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1796a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int startPosition = borderStart() + paddingStart(); 1797a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int totalAvailableLogicalWidth = borderAndPaddingLogicalWidth() + availableLogicalWidth(); 1798a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 1799a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Add in our start margin. 1800a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int childMarginStart = marginStartForChild(child); 1801a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int newPosition = startPosition + childMarginStart; 18028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1803a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Some objects (e.g., tables, horizontal rules, overflow:auto blocks) avoid floats. They need 1804a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // to shift over as necessary to dodge any floats that might get in the way. 1805a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (child->avoidsFloats()) { 1806a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int startOff = style()->isLeftToRightDirection() ? logicalLeftOffsetForLine(logicalHeight(), false) : totalAvailableLogicalWidth - logicalRightOffsetForLine(logicalHeight(), false); 1807a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (style()->textAlign() != WEBKIT_CENTER && !child->style()->marginStartUsing(style()).isAuto()) { 1808a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (childMarginStart < 0) 1809a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch startOff += childMarginStart; 1810a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch newPosition = max(newPosition, startOff); // Let the float sit in the child's margin if it can fit. 1811a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else if (startOff != startPosition) { 1812a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The object is shifting to the "end" side of the block. The object might be centered, so we need to 1813a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // recalculate our inline direction margins. Note that the containing block content 1814a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // width computation will take into account the delta between |startOff| and |startPosition| 1815a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // so that we can just pass the content width in directly to the |computeMarginsInContainingBlockInlineDirection| 1816a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // function. 1817a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->computeInlineDirectionMargins(this, availableLogicalWidthForLine(logicalTopForChild(child), false), logicalWidthForChild(child)); 1818a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch newPosition = startOff + marginStartForChild(child); 18198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 18208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1821a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 1822a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalLeftForChild(child, style()->isLeftToRightDirection() ? newPosition : totalAvailableLogicalWidth - newPosition - logicalWidthForChild(child), ApplyLayoutDelta); 18238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 18248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 18258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::setCollapsedBottomMargin(const MarginInfo& marginInfo) 18268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1827bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (marginInfo.canCollapseWithMarginAfter() && !marginInfo.canCollapseWithMarginBefore()) { 18288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Update our max pos/neg bottom margins, since we collapsed our bottom margins 18298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // with our children. 1830a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setMaxMarginAfterValues(max(maxPositiveMarginAfter(), marginInfo.positiveMargin()), max(maxNegativeMarginAfter(), marginInfo.negativeMargin())); 18318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1832bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (!marginInfo.marginAfterQuirk()) 1833bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setMarginAfterQuirk(false); 18348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1835a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (marginInfo.marginAfterQuirk() && marginAfter() == 0) 18368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We have no bottom margin and our last child has a quirky margin. 18378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We will pick up this quirky margin and pass it through. 18388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // This deals with the <td><div><p> case. 1839bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setMarginAfterQuirk(true); 18408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 18418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 18428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1843a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::handleAfterSideOfBlock(int beforeSide, int afterSide, MarginInfo& marginInfo) 18448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1845bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen marginInfo.setAtAfterSideOfBlock(true); 18468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 18478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If we can't collapse with children then go ahead and add in the bottom margin. 1848bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (!marginInfo.canCollapseWithMarginAfter() && !marginInfo.canCollapseWithMarginBefore() 1849bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen && (!document()->inQuirksMode() || !marginInfo.quirkContainer() || !marginInfo.marginAfterQuirk())) 1850a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + marginInfo.margin()); 18518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 18528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Now add in our bottom border/padding. 1853a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + afterSide); 18548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 18558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Negative margins can cause our height to shrink below our minimal height (border/padding). 18568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If this happens, ensure that the computed height is increased to the minimal height. 1857a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(max(logicalHeight(), beforeSide + afterSide)); 18588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 18598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Update our bottom collapsed margin info. 18608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project setCollapsedBottomMargin(marginInfo); 18618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 18628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1863a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::setLogicalLeftForChild(RenderBox* child, int logicalLeft, ApplyLayoutDeltaMode applyDelta) 1864a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 18652bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) { 1866a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (applyDelta == ApplyLayoutDelta) 1867a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch view()->addLayoutDelta(IntSize(child->x() - logicalLeft, 0)); 1868a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setX(logicalLeft); 1869a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else { 1870a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (applyDelta == ApplyLayoutDelta) 1871a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch view()->addLayoutDelta(IntSize(0, child->y() - logicalLeft)); 1872a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setY(logicalLeft); 1873a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 1874a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 1875a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 1876a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::setLogicalTopForChild(RenderBox* child, int logicalTop, ApplyLayoutDeltaMode applyDelta) 1877a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 18782bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) { 1879a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (applyDelta == ApplyLayoutDelta) 1880a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch view()->addLayoutDelta(IntSize(0, child->y() - logicalTop)); 1881a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setY(logicalTop); 1882a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else { 1883a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (applyDelta == ApplyLayoutDelta) 1884a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch view()->addLayoutDelta(IntSize(child->x() - logicalTop, 0)); 1885a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setX(logicalTop); 1886a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 1887a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 1888a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 1889a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::layoutBlockChildren(bool relayoutChildren, int& maxFloatLogicalBottom) 18908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 18918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (gPercentHeightDescendantsMap) { 18928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (HashSet<RenderBox*>* descendants = gPercentHeightDescendantsMap->get(this)) { 18938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HashSet<RenderBox*>::iterator end = descendants->end(); 18948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (HashSet<RenderBox*>::iterator it = descendants->begin(); it != end; ++it) { 18958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderBox* box = *it; 18968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (box != this) { 18978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (box->normalChildNeedsLayout()) 18988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 18998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project box->setChildNeedsLayout(true, false); 19008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project box = box->containingBlock(); 19018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(box); 19028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!box) 19038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 19048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 19058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 19068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 19078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 19088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1909a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int beforeEdge = borderBefore() + paddingBefore(); 1910a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int afterEdge = borderAfter() + paddingAfter() + scrollbarLogicalHeight(); 19118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1912a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(beforeEdge); 19138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 19148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The margin struct caches all our current margin collapsing state. The compact struct caches state when we encounter compacts, 1915a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch MarginInfo marginInfo(this, beforeEdge, afterEdge); 19168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 19178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Fieldsets need to find their legend and position it inside the border of the object. 19184576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang // The legend then gets skipped during normal layout. The same is true for ruby text. 19194576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang // It doesn't get included in the normal layout process but is instead skipped. 19204576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang RenderObject* childToExclude = layoutSpecialExcludedChild(relayoutChildren); 19218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1922a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int previousFloatLogicalBottom = 0; 1923a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch maxFloatLogicalBottom = 0; 19248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 19255f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian RenderBox* next = firstChildBox(); 19265f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 19275f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian while (next) { 19285f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian RenderBox* child = next; 19295f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian next = child->nextSiblingBox(); 19305f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 19314576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang if (childToExclude == child) 19324576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang continue; // Skip this child, since it will be positioned by the specialized subclass (fieldsets and ruby runs). 19338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 19348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Make sure we layout children if they need it. 19358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: Technically percentage height objects only need a relayout if their percentage isn't going to be turned into 19368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // an auto value. Add a method to determine this, so that we can avoid the relayout. 1937a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (relayoutChildren || ((child->style()->logicalHeight().isPercent() || child->style()->logicalMinHeight().isPercent() || child->style()->logicalMaxHeight().isPercent()) && !isRenderView())) 19388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project child->setChildNeedsLayout(true, false); 19398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1940a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // If relayoutChildren is set and the child has percentage padding, we also need to invalidate the child's pref widths. 1941a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (relayoutChildren && (child->style()->paddingStart().isPercent() || child->style()->paddingEnd().isPercent())) 1942bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen child->setPreferredLogicalWidthsDirty(true, false); 19438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 19448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Handle the four types of special elements first. These include positioned content, floating content, compacts and 19458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // run-ins. When we encounter these four types of objects, we don't actually lay them out as normal flow blocks. 19465f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (handleSpecialChild(child, marginInfo)) 19478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 19488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1949231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Lay out the child. 1950a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch layoutBlockChild(child, marginInfo, previousFloatLogicalBottom, maxFloatLogicalBottom); 1951231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 1952231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 1953231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Now do the handling of the bottom of the block, adding in our bottom border/padding and 1954231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // determining the correct collapsed bottom margin information. 1955a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch handleAfterSideOfBlock(beforeEdge, afterEdge, marginInfo); 1956231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block} 19578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1958a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::layoutBlockChild(RenderBox* child, MarginInfo& marginInfo, int& previousFloatLogicalBottom, int& maxFloatLogicalBottom) 1959231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block{ 1960a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int oldPosMarginBefore = maxPositiveMarginBefore(); 1961a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int oldNegMarginBefore = maxNegativeMarginBefore(); 19628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1963a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The child is a normal flow object. Compute the margins we will use for collapsing now. 1964bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen child->computeBlockDirectionMargins(this); 19658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1966a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Do not allow a collapse if the margin-before-collapse style is set to SEPARATE. 1967bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (child->style()->marginBeforeCollapse() == MSEPARATE) { 1968bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen marginInfo.setAtBeforeSideOfBlock(false); 1969231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block marginInfo.clearMargin(); 1970231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 1971231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 1972a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Try to guess our correct logical top position. In most cases this guess will 1973a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // be correct. Only if we're wrong (when we compute the real logical top position) 1974231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // will we have to potentially relayout. 1975a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTopEstimate = estimateLogicalTopPosition(child, marginInfo); 1976231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 1977231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Cache our old rect so that we can dirty the proper repaint rects if the child moves. 1978231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block IntRect oldRect(child->x(), child->y() , child->width(), child->height()); 1979a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int oldLogicalTop = logicalTopForChild(child); 1980a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 1981635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#ifndef NDEBUG 1982231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block IntSize oldLayoutDelta = view()->layoutDelta(); 1983635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#endif 1984231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Go ahead and position the child as though it didn't collapse with the top. 1985a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalTopForChild(child, logicalTopEstimate, ApplyLayoutDelta); 1986231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 198768513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderBlock* childRenderBlock = child->isRenderBlock() ? toRenderBlock(child) : 0; 1988231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block bool markDescendantsWithFloats = false; 1989a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (logicalTopEstimate != oldLogicalTop && !child->avoidsFloats() && childRenderBlock && childRenderBlock->containsFloats()) 1990231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block markDescendantsWithFloats = true; 1991231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block else if (!child->avoidsFloats() || child->shrinkToAvoidFloats()) { 1992231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // If an element might be affected by the presence of floats, then always mark it for 1993231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // layout. 1994a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int fb = max(previousFloatLogicalBottom, lowestFloatLogicalBottom()); 1995a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (fb > logicalTopEstimate) 19968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project markDescendantsWithFloats = true; 1997231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 19988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 199968513a70bcd92384395513322f1b801e7bf9c729Steve Block if (childRenderBlock) { 2000231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (markDescendantsWithFloats) 200168513a70bcd92384395513322f1b801e7bf9c729Steve Block childRenderBlock->markAllDescendantsWithFloatsForLayout(); 2002a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!child->isWritingModeRoot()) 2003a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch previousFloatLogicalBottom = max(previousFloatLogicalBottom, oldLogicalTop + childRenderBlock->lowestFloatLogicalBottom()); 2004231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 20058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2006a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!child->needsLayout()) 2007a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->markForPaginationRelayoutIfNeeded(); 200868513a70bcd92384395513322f1b801e7bf9c729Steve Block 2009231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block bool childHadLayout = child->m_everHadLayout; 2010231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block bool childNeededLayout = child->needsLayout(); 2011231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (childNeededLayout) 2012231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block child->layout(); 20138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 201468513a70bcd92384395513322f1b801e7bf9c729Steve Block // Cache if we are at the top of the block right now. 2015bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen bool atBeforeSideOfBlock = marginInfo.atBeforeSideOfBlock(); 201668513a70bcd92384395513322f1b801e7bf9c729Steve Block 2017231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Now determine the correct ypos based off examination of collapsing margin 2018231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // values. 2019a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTopBeforeClear = collapseMargins(child, marginInfo); 20208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2021231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Now check for clear. 2022a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTopAfterClear = clearFloatsIfNeeded(child, marginInfo, oldPosMarginBefore, oldNegMarginBefore, logicalTopBeforeClear); 20238f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 2024a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bool paginated = view()->layoutState()->isPaginated(); 202568513a70bcd92384395513322f1b801e7bf9c729Steve Block if (paginated) { 2026a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int oldTop = logicalTopAfterClear; 202768513a70bcd92384395513322f1b801e7bf9c729Steve Block 202868513a70bcd92384395513322f1b801e7bf9c729Steve Block // If the object has a page or column break value of "before", then we should shift to the top of the next page. 2029a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTopAfterClear = applyBeforeBreak(child, logicalTopAfterClear); 203068513a70bcd92384395513322f1b801e7bf9c729Steve Block 203168513a70bcd92384395513322f1b801e7bf9c729Steve Block // For replaced elements and scrolled elements, we want to shift them to the next page if they don't fit on the current one. 2032a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTopBeforeUnsplittableAdjustment = logicalTopAfterClear; 2033a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTopAfterUnsplittableAdjustment = adjustForUnsplittableChild(child, logicalTopAfterClear); 203468513a70bcd92384395513322f1b801e7bf9c729Steve Block 203568513a70bcd92384395513322f1b801e7bf9c729Steve Block int paginationStrut = 0; 2036a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int unsplittableAdjustmentDelta = logicalTopAfterUnsplittableAdjustment - logicalTopBeforeUnsplittableAdjustment; 203768513a70bcd92384395513322f1b801e7bf9c729Steve Block if (unsplittableAdjustmentDelta) 203868513a70bcd92384395513322f1b801e7bf9c729Steve Block paginationStrut = unsplittableAdjustmentDelta; 203968513a70bcd92384395513322f1b801e7bf9c729Steve Block else if (childRenderBlock && childRenderBlock->paginationStrut()) 204068513a70bcd92384395513322f1b801e7bf9c729Steve Block paginationStrut = childRenderBlock->paginationStrut(); 204168513a70bcd92384395513322f1b801e7bf9c729Steve Block 204268513a70bcd92384395513322f1b801e7bf9c729Steve Block if (paginationStrut) { 204368513a70bcd92384395513322f1b801e7bf9c729Steve Block // We are willing to propagate out to our parent block as long as we were at the top of the block prior 204468513a70bcd92384395513322f1b801e7bf9c729Steve Block // to collapsing our margins, and as long as we didn't clear or move as a result of other pagination. 2045a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (atBeforeSideOfBlock && oldTop == logicalTopBeforeClear && !isPositioned() && !isTableCell()) { 204668513a70bcd92384395513322f1b801e7bf9c729Steve Block // FIXME: Should really check if we're exceeding the page height before propagating the strut, but we don't 204768513a70bcd92384395513322f1b801e7bf9c729Steve Block // have all the information to do so (the strut only has the remaining amount to push). Gecko gets this wrong too 204868513a70bcd92384395513322f1b801e7bf9c729Steve Block // and pushes to the next page anyway, so not too concerned about it. 2049a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setPaginationStrut(logicalTopAfterClear + paginationStrut); 205068513a70bcd92384395513322f1b801e7bf9c729Steve Block if (childRenderBlock) 205168513a70bcd92384395513322f1b801e7bf9c729Steve Block childRenderBlock->setPaginationStrut(0); 205268513a70bcd92384395513322f1b801e7bf9c729Steve Block } else 2053a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTopAfterClear += paginationStrut; 205468513a70bcd92384395513322f1b801e7bf9c729Steve Block } 205568513a70bcd92384395513322f1b801e7bf9c729Steve Block 205668513a70bcd92384395513322f1b801e7bf9c729Steve Block // Similar to how we apply clearance. Go ahead and boost height() to be the place where we're going to position the child. 2057a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + (logicalTopAfterClear - oldTop)); 205868513a70bcd92384395513322f1b801e7bf9c729Steve Block } 205968513a70bcd92384395513322f1b801e7bf9c729Steve Block 2060a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalTopForChild(child, logicalTopAfterClear, ApplyLayoutDelta); 2061231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 2062a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Now we have a final top position. See if it really does end up being different from our estimate. 2063a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (logicalTopAfterClear != logicalTopEstimate) { 2064231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (child->shrinkToAvoidFloats()) { 2065231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // The child's width depends on the line width. 2066231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // When the child shifts to clear an item, its width can 2067231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // change (because it has more available line width). 2068231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // So go ahead and mark the item as dirty. 2069231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block child->setChildNeedsLayout(true, false); 20708f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 207168513a70bcd92384395513322f1b801e7bf9c729Steve Block if (childRenderBlock) { 207268513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!child->avoidsFloats() && childRenderBlock->containsFloats()) 207368513a70bcd92384395513322f1b801e7bf9c729Steve Block childRenderBlock->markAllDescendantsWithFloatsForLayout(); 2074a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!child->needsLayout()) 2075a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->markForPaginationRelayoutIfNeeded(); 207668513a70bcd92384395513322f1b801e7bf9c729Steve Block } 207768513a70bcd92384395513322f1b801e7bf9c729Steve Block 2078231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Our guess was wrong. Make the child lay itself out again. 2079231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block child->layoutIfNeeded(); 2080231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 20818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2082231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // We are no longer at the top of the block if we encounter a non-empty child. 2083231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // This has to be done after checking for clear, so that margins can be reset if a clear occurred. 2084bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (marginInfo.atBeforeSideOfBlock() && !child->isSelfCollapsingBlock()) 2085bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen marginInfo.setAtBeforeSideOfBlock(false); 20868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2087a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Now place the child in the correct left position 2088a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch determineLogicalLeftPositionForChild(child); 20898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2090231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Update our height now that the child has been placed in the correct position. 2091a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + logicalHeightForChild(child)); 2092bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (child->style()->marginAfterCollapse() == MSEPARATE) { 2093a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + marginAfterForChild(child)); 2094231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block marginInfo.clearMargin(); 2095231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 2096231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // If the child has overhanging floats that intrude into following siblings (or possibly out 2097231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // of this block), then the parent gets notified of the floats now. 209868513a70bcd92384395513322f1b801e7bf9c729Steve Block if (childRenderBlock && childRenderBlock->containsFloats()) 2099a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch maxFloatLogicalBottom = max(maxFloatLogicalBottom, addOverhangingFloats(toRenderBlock(child), -child->logicalLeft(), -child->logicalTop(), !childNeededLayout)); 21008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2101231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block IntSize childOffset(child->x() - oldRect.x(), child->y() - oldRect.y()); 2102231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (childOffset.width() || childOffset.height()) { 2103231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block view()->addLayoutDelta(childOffset); 21048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2105231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // If the child moved, we have to repaint it as well as any floating/positioned 2106231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // descendants. An exception is if we need a layout. In this case, we know we're going to 2107231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // repaint ourselves (and the child) anyway. 2108231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (childHadLayout && !selfNeedsLayout() && child->checkForRepaintDuringLayout()) 2109231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block child->repaintDuringLayoutIfMoved(oldRect); 2110231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 21118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2112231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (!childHadLayout && child->checkForRepaintDuringLayout()) { 2113231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block child->repaint(); 2114231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block child->repaintOverhangingFloats(true); 21158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 21168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 211768513a70bcd92384395513322f1b801e7bf9c729Steve Block if (paginated) { 211868513a70bcd92384395513322f1b801e7bf9c729Steve Block // Check for an after page/column break. 21192fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int newHeight = applyAfterBreak(child, logicalHeight(), marginInfo); 212068513a70bcd92384395513322f1b801e7bf9c729Steve Block if (newHeight != height()) 2121bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setLogicalHeight(newHeight); 212268513a70bcd92384395513322f1b801e7bf9c729Steve Block } 212368513a70bcd92384395513322f1b801e7bf9c729Steve Block 2124231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block ASSERT(oldLayoutDelta == view()->layoutDelta()); 21258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 21268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 21272bde8e466a4451c7319e3a072d118917957d6554Steve Blockvoid RenderBlock::simplifiedNormalFlowLayout() 21288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 21292bde8e466a4451c7319e3a072d118917957d6554Steve Block if (childrenInline()) { 21302bde8e466a4451c7319e3a072d118917957d6554Steve Block ListHashSet<RootInlineBox*> lineBoxes; 21312bde8e466a4451c7319e3a072d118917957d6554Steve Block bool endOfInline = false; 21322bde8e466a4451c7319e3a072d118917957d6554Steve Block RenderObject* o = bidiFirst(this, 0, false); 21332bde8e466a4451c7319e3a072d118917957d6554Steve Block while (o) { 21342bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!o->isPositioned() && (o->isReplaced() || o->isFloating())) { 21352bde8e466a4451c7319e3a072d118917957d6554Steve Block o->layoutIfNeeded(); 21362bde8e466a4451c7319e3a072d118917957d6554Steve Block if (toRenderBox(o)->inlineBoxWrapper()) { 21372bde8e466a4451c7319e3a072d118917957d6554Steve Block RootInlineBox* box = toRenderBox(o)->inlineBoxWrapper()->root(); 21382bde8e466a4451c7319e3a072d118917957d6554Steve Block lineBoxes.add(box); 21392bde8e466a4451c7319e3a072d118917957d6554Steve Block } 21402bde8e466a4451c7319e3a072d118917957d6554Steve Block } else if (o->isText() || (o->isRenderInline() && !endOfInline)) 21412bde8e466a4451c7319e3a072d118917957d6554Steve Block o->setNeedsLayout(false); 21422bde8e466a4451c7319e3a072d118917957d6554Steve Block o = bidiNext(this, o, 0, false, &endOfInline); 21432bde8e466a4451c7319e3a072d118917957d6554Steve Block } 21442bde8e466a4451c7319e3a072d118917957d6554Steve Block 21452bde8e466a4451c7319e3a072d118917957d6554Steve Block // FIXME: Glyph overflow will get lost in this case, but not really a big deal. 21462bde8e466a4451c7319e3a072d118917957d6554Steve Block GlyphOverflowAndFallbackFontsMap textBoxDataMap; 21472bde8e466a4451c7319e3a072d118917957d6554Steve Block for (ListHashSet<RootInlineBox*>::const_iterator it = lineBoxes.begin(); it != lineBoxes.end(); ++it) { 21482bde8e466a4451c7319e3a072d118917957d6554Steve Block RootInlineBox* box = *it; 21492daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch box->computeOverflow(box->lineTop(), box->lineBottom(), textBoxDataMap); 21502bde8e466a4451c7319e3a072d118917957d6554Steve Block } 21512bde8e466a4451c7319e3a072d118917957d6554Steve Block } else { 21522bde8e466a4451c7319e3a072d118917957d6554Steve Block for (RenderBox* box = firstChildBox(); box; box = box->nextSiblingBox()) { 21532bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!box->isPositioned()) 21542bde8e466a4451c7319e3a072d118917957d6554Steve Block box->layoutIfNeeded(); 21552bde8e466a4451c7319e3a072d118917957d6554Steve Block } 21562bde8e466a4451c7319e3a072d118917957d6554Steve Block } 21572bde8e466a4451c7319e3a072d118917957d6554Steve Block} 21582bde8e466a4451c7319e3a072d118917957d6554Steve Block 21592bde8e466a4451c7319e3a072d118917957d6554Steve Blockbool RenderBlock::simplifiedLayout() 21602bde8e466a4451c7319e3a072d118917957d6554Steve Block{ 21612bde8e466a4451c7319e3a072d118917957d6554Steve Block if ((!posChildNeedsLayout() && !needsSimplifiedNormalFlowLayout()) || normalChildNeedsLayout() || selfNeedsLayout()) 21628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 21638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 21646b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner LayoutStateMaintainer statePusher(view(), this, IntSize(x(), y()), hasColumns() || hasTransform() || hasReflection() || style()->isFlippedBlocksWritingMode()); 21652bde8e466a4451c7319e3a072d118917957d6554Steve Block 21662daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch if (needsPositionedMovementLayout() && !tryLayoutDoingPositionedMovementOnly()) 21672daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch return false; 21688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 21692bde8e466a4451c7319e3a072d118917957d6554Steve Block // Lay out positioned descendants or objects that just need to recompute overflow. 21702bde8e466a4451c7319e3a072d118917957d6554Steve Block if (needsSimplifiedNormalFlowLayout()) 21712bde8e466a4451c7319e3a072d118917957d6554Steve Block simplifiedNormalFlowLayout(); 21722bde8e466a4451c7319e3a072d118917957d6554Steve Block 21732bde8e466a4451c7319e3a072d118917957d6554Steve Block // Lay out our positioned objects if our positioned child bit is set. 21742bde8e466a4451c7319e3a072d118917957d6554Steve Block if (posChildNeedsLayout()) 21752bde8e466a4451c7319e3a072d118917957d6554Steve Block layoutPositionedObjects(false); 21768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2177f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // Recompute our overflow information. 2178f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // FIXME: We could do better here by computing a temporary overflow object from layoutPositionedObjects and only 2179f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // updating our overflow if we either used to have overflow or if the new temporary object has overflow. 2180f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // For now just always recompute overflow. This is no worse performance-wise than the old code that called rightmostPosition and 2181f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // lowestPosition on every relayout so it's not a regression. 2182f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch m_overflow.clear(); 2183f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch computeOverflow(clientLogicalBottom(), true); 2184f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 2185635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project statePusher.pop(); 2186f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 2187f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch updateLayerTransform(); 21888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 21890bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch updateScrollInfoAfterLayout(); 21908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 21918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project setNeedsLayout(false); 21928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 21938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 21948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 21958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::layoutPositionedObjects(bool relayoutChildren) 21968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2197f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!m_positionedObjects) 2198f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch return; 2199f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 2200f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (hasColumns()) 2201f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch view()->layoutState()->clearPaginationInformation(); // Positioned objects are not part of the column flow, so they don't paginate with the columns. 220268513a70bcd92384395513322f1b801e7bf9c729Steve Block 2203f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch RenderBox* r; 2204f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch Iterator end = m_positionedObjects->end(); 2205f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch for (Iterator it = m_positionedObjects->begin(); it != end; ++it) { 2206f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch r = *it; 2207f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // When a non-positioned block element moves, it may have positioned children that are implicitly positioned relative to the 2208f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // non-positioned block. Rather than trying to detect all of these movement cases, we just always lay out positioned 2209f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // objects that are positioned implicitly like this. Such objects are rare, and so in typical DHTML menu usage (where everything is 2210f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // positioned explicitly) this should not incur a performance penalty. 22112bde8e466a4451c7319e3a072d118917957d6554Steve Block if (relayoutChildren || (r->style()->hasStaticBlockPosition(isHorizontalWritingMode()) && r->parent() != this && r->parent()->isBlockFlow())) 2212f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch r->setChildNeedsLayout(true, false); 22138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2214f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // If relayoutChildren is set and we have percentage padding, we also need to invalidate the child's pref widths. 2215f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (relayoutChildren && (r->style()->paddingStart().isPercent() || r->style()->paddingEnd().isPercent())) 2216f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch r->setPreferredLogicalWidthsDirty(true, false); 221768513a70bcd92384395513322f1b801e7bf9c729Steve Block 2218f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!r->needsLayout()) 2219f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch r->markForPaginationRelayoutIfNeeded(); 2220f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 2221f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // We don't have to do a full layout. We just have to update our position. Try that first. If we have shrink-to-fit width 2222f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // and we hit the available width constraint, the layoutIfNeeded() will catch it and do a full layout. 22232daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch if (r->needsPositionedMovementLayoutOnly() && r->tryLayoutDoingPositionedMovementOnly()) 22242daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch r->setNeedsLayout(false); 2225f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch r->layoutIfNeeded(); 22268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 2227f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 2228f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (hasColumns()) 2229f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch view()->layoutState()->m_columnInfo = columnInfo(); // FIXME: Kind of gross. We just put this back into the layout state so that pop() will work. 22308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 22318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 22328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::markPositionedObjectsForLayout() 22338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 22348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_positionedObjects) { 2235635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderBox* r; 22368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Iterator end = m_positionedObjects->end(); 22378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (Iterator it = m_positionedObjects->begin(); it != end; ++it) { 22388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project r = *it; 22398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project r->setChildNeedsLayout(true); 22408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 22418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 22428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 22438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2244a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::markForPaginationRelayoutIfNeeded() 2245a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 2246a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch ASSERT(!needsLayout()); 2247a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (needsLayout()) 2248a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return; 2249a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 22502fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (view()->layoutState()->pageLogicalHeightChanged() || (view()->layoutState()->pageLogicalHeight() && view()->layoutState()->pageLogicalOffset(logicalTop()) != pageLogicalOffset())) 2251a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setChildNeedsLayout(true, false); 2252a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 2253a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 22548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::repaintOverhangingFloats(bool paintAllDescendants) 22558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 22568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Repaint any overhanging floats (if we know we're the one to paint them). 225754cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block // Otherwise, bail out. 225854cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block if (!hasOverhangingFloats()) 225954cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block return; 22608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 226154cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block // FIXME: Avoid disabling LayoutState. At the very least, don't disable it for floats originating 226254cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block // in this block. Better yet would be to push extra state for the containers of other floats. 226354cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block view()->disableLayoutState(); 226454cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 226554cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block FloatingObjectSetIterator end = floatingObjectSet.end(); 226654cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 226754cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block FloatingObject* r = *it; 226854cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block // Only repaint the object if it is overhanging, is not in its own layer, and 226954cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block // is our responsibility to paint (m_shouldPaint is set). When paintAllDescendants is true, the latter 227054cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block // condition is replaced with being a descendant of us. 227154cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block if (logicalBottomForFloat(r) > logicalHeight() && ((paintAllDescendants && r->m_renderer->isDescendantOf(this)) || r->m_shouldPaint) && !r->m_renderer->hasSelfPaintingLayer()) { 227254cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block r->m_renderer->repaint(); 227354cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block r->m_renderer->repaintOverhangingFloats(); 22748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 22758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 227654cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block view()->enableLayoutState(); 22778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 22788f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 22798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::paint(PaintInfo& paintInfo, int tx, int ty) 22808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2281635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project tx += x(); 2282635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project ty += y(); 22838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 22848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project PaintPhase phase = paintInfo.phase; 22858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 22868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Check if we need to do anything at all. 22878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: Could eliminate the isRoot() check if we fix background painting so that the RenderView 22888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // paints the root's background. 2289635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (!isRoot()) { 2290f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch IntRect overflowBox = visualOverflowRect(); 22912bde8e466a4451c7319e3a072d118917957d6554Steve Block flipForWritingMode(overflowBox); 22928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project overflowBox.inflate(maximalOutlineSize(paintInfo.phase)); 22938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project overflowBox.move(tx, ty); 22948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!overflowBox.intersects(paintInfo.rect)) 22958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 22968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 22978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 22988f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian bool pushedClip = pushContentsClip(paintInfo, tx, ty); 22998f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian paintObject(paintInfo, tx, ty); 23008f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (pushedClip) 23018f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian popContentsClip(paintInfo, phase, tx, ty); 23028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 23038f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // Our scrollbar widgets paint exactly when we tell them to, so that they work properly with 23048f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // z-index. We paint after we painted the background/border, so that the scrollbars will 23058f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // sit above the background/border. 2306ca9cb53ed1119a3fd98fafa0972ffeb56dee1c24Steve Block if (hasOverflowClip() && style()->visibility() == VISIBLE && (phase == PaintPhaseBlockBackground || phase == PaintPhaseChildBlockBackground) && paintInfo.shouldPaintWithinRoot(this)) 23078f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian layer()->paintOverflowControls(paintInfo.context, tx, ty, paintInfo.rect); 23088f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 23098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 23108f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::paintColumnRules(PaintInfo& paintInfo, int tx, int ty) 23118f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 2312dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block const Color& ruleColor = style()->visitedDependentColor(CSSPropertyWebkitColumnRuleColor); 23138f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian bool ruleTransparent = style()->columnRuleIsTransparent(); 23148f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian EBorderStyle ruleStyle = style()->columnRuleStyle(); 23158f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int ruleWidth = style()->columnRuleWidth(); 23168f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int colGap = columnGap(); 23178f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian bool renderRule = ruleStyle > BHIDDEN && !ruleTransparent && ruleWidth <= colGap; 23188f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!renderRule) 23198f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return; 23208f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 23218f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // We need to do multiple passes, breaking up our child painting into strips. 23225abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick ColumnInfo* colInfo = columnInfo(); 232368513a70bcd92384395513322f1b801e7bf9c729Steve Block unsigned colCount = columnCount(colInfo); 23242fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int currLogicalLeftOffset = style()->isLeftToRightDirection() ? 0 : contentLogicalWidth(); 23252fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int ruleAdd = logicalLeftOffsetForContent(); 23262fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int ruleLogicalLeft = style()->isLeftToRightDirection() ? 0 : contentLogicalWidth(); 23278f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian for (unsigned i = 0; i < colCount; i++) { 232868513a70bcd92384395513322f1b801e7bf9c729Steve Block IntRect colRect = columnRectAt(colInfo, i); 23298f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 23302bde8e466a4451c7319e3a072d118917957d6554Steve Block int inlineDirectionSize = isHorizontalWritingMode() ? colRect.width() : colRect.height(); 23312fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 23328f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // Move to the next position. 2333a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (style()->isLeftToRightDirection()) { 23342fc2651226baac27029e38c9d6ef883fa32084dbSteve Block ruleLogicalLeft += inlineDirectionSize + colGap / 2; 23352fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalLeftOffset += inlineDirectionSize + colGap; 23368f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } else { 23372fc2651226baac27029e38c9d6ef883fa32084dbSteve Block ruleLogicalLeft -= (inlineDirectionSize + colGap / 2); 23382fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalLeftOffset -= (inlineDirectionSize + colGap); 23398f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 23408f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 23418f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // Now paint the column rule. 23428f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (i < colCount - 1) { 23432bde8e466a4451c7319e3a072d118917957d6554Steve Block int ruleLeft = isHorizontalWritingMode() ? tx + ruleLogicalLeft - ruleWidth / 2 + ruleAdd : tx + borderBefore() + paddingBefore(); 23442bde8e466a4451c7319e3a072d118917957d6554Steve Block int ruleRight = isHorizontalWritingMode() ? ruleLeft + ruleWidth : ruleLeft + contentWidth(); 23452bde8e466a4451c7319e3a072d118917957d6554Steve Block int ruleTop = isHorizontalWritingMode() ? ty + borderTop() + paddingTop() : ty + ruleLogicalLeft - ruleWidth / 2 + ruleAdd; 23462bde8e466a4451c7319e3a072d118917957d6554Steve Block int ruleBottom = isHorizontalWritingMode() ? ruleTop + contentHeight() : ruleTop + ruleWidth; 23472fc2651226baac27029e38c9d6ef883fa32084dbSteve Block drawLineForBoxSide(paintInfo.context, ruleLeft, ruleTop, ruleRight, ruleBottom, 2348a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch style()->isLeftToRightDirection() ? BSLeft : BSRight, ruleColor, ruleStyle, 0, 0); 23498f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 23508f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 23512fc2651226baac27029e38c9d6ef883fa32084dbSteve Block ruleLogicalLeft = currLogicalLeftOffset; 23528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 23538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 23548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 23558f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::paintColumnContents(PaintInfo& paintInfo, int tx, int ty, bool paintingFloats) 23568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 23578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We need to do multiple passes, breaking up our child painting into strips. 23588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project GraphicsContext* context = paintInfo.context; 23595abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick ColumnInfo* colInfo = columnInfo(); 236068513a70bcd92384395513322f1b801e7bf9c729Steve Block unsigned colCount = columnCount(colInfo); 23616c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen if (!colCount) 23626c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen return; 23632fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int currLogicalTopOffset = 0; 23648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (unsigned i = 0; i < colCount; i++) { 23658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // For each rect, we clip to the rect, and then we adjust our coords. 236668513a70bcd92384395513322f1b801e7bf9c729Steve Block IntRect colRect = columnRectAt(colInfo, i); 23672fc2651226baac27029e38c9d6ef883fa32084dbSteve Block flipForWritingMode(colRect); 23682bde8e466a4451c7319e3a072d118917957d6554Steve Block int logicalLeftOffset = (isHorizontalWritingMode() ? colRect.x() : colRect.y()) - logicalLeftOffsetForContent(); 23692bde8e466a4451c7319e3a072d118917957d6554Steve Block IntSize offset = isHorizontalWritingMode() ? IntSize(logicalLeftOffset, currLogicalTopOffset) : IntSize(currLogicalTopOffset, logicalLeftOffset); 23708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project colRect.move(tx, ty); 23718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project PaintInfo info(paintInfo); 23728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project info.rect.intersect(colRect); 23738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2374e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (!info.rect.isEmpty()) { 2375e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block context->save(); 2376e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block 2377e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block // Each strip pushes a clip, since column boxes are specified as being 2378e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block // like overflow:hidden. 2379e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block context->clip(colRect); 23802fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 2381e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block // Adjust our x and y when painting. 23822fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int finalX = tx + offset.width(); 23832fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int finalY = ty + offset.height(); 2384e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (paintingFloats) 2385e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block paintFloats(info, finalX, finalY, paintInfo.phase == PaintPhaseSelection || paintInfo.phase == PaintPhaseTextClip); 2386e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block else 2387e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block paintContents(info, finalX, finalY); 23888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2389e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block context->restore(); 2390e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block } 23912fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 23922bde8e466a4451c7319e3a072d118917957d6554Steve Block int blockDelta = (isHorizontalWritingMode() ? colRect.height() : colRect.width()); 23932fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (style()->isFlippedBlocksWritingMode()) 23942fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalTopOffset += blockDelta; 23958f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian else 23962fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalTopOffset -= blockDelta; 23978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 23988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 23998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::paintContents(PaintInfo& paintInfo, int tx, int ty) 24018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 24028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Avoid painting descendants of the root element when stylesheets haven't loaded. This eliminates FOUC. 24038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // It's ok not to draw, because later on, when all the stylesheets do load, updateStyleSelector on the Document 24048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // will do a full repaint(). 24052daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch if (document()->didLayoutWithPendingStylesheets() && !isRenderView()) 24068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 24078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) 24098f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian m_lineBoxes.paint(this, paintInfo, tx, ty); 24108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 24118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project paintChildren(paintInfo, tx, ty); 24128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 24138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::paintChildren(PaintInfo& paintInfo, int tx, int ty) 24158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 24168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project PaintPhase newPhase = (paintInfo.phase == PaintPhaseChildOutlines) ? PaintPhaseOutline : paintInfo.phase; 24178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project newPhase = (newPhase == PaintPhaseChildBlockBackgrounds) ? PaintPhaseChildBlockBackground : newPhase; 24188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We don't paint our own background, but we do let the kids paint their backgrounds. 24208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project PaintInfo info(paintInfo); 24218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project info.phase = newPhase; 2422ca9cb53ed1119a3fd98fafa0972ffeb56dee1c24Steve Block info.updatePaintingRootForChildren(this); 24235ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen 242468513a70bcd92384395513322f1b801e7bf9c729Steve Block // FIXME: Paint-time pagination is obsolete and is now only used by embedded WebViews inside AppKit 242568513a70bcd92384395513322f1b801e7bf9c729Steve Block // NSViews. Do not add any more code for this. 24265ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen RenderView* renderView = view(); 242768513a70bcd92384395513322f1b801e7bf9c729Steve Block bool usePrintRect = !renderView->printRect().isEmpty(); 24285ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen 2429635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (RenderBox* child = firstChildBox(); child; child = child->nextSiblingBox()) { 24308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Check for page-break-before: always, and if it's set, break and bail. 243168513a70bcd92384395513322f1b801e7bf9c729Steve Block bool checkBeforeAlways = !childrenInline() && (usePrintRect && child->style()->pageBreakBefore() == PBALWAYS); 2432545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (checkBeforeAlways 2433dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block && (ty + child->y()) > paintInfo.rect.y() 24342fc2651226baac27029e38c9d6ef883fa32084dbSteve Block && (ty + child->y()) < paintInfo.rect.maxY()) { 2435635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project view()->setBestTruncatedAt(ty + child->y(), this, true); 24368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 24378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 24388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24395ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen if (!child->isFloating() && child->isReplaced() && usePrintRect && child->height() <= renderView->printRect().height()) { 24405ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen // Paginate block-level replaced elements. 24412fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (ty + child->y() + child->height() > renderView->printRect().maxY()) { 24425ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen if (ty + child->y() < renderView->truncatedAt()) 24435ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen renderView->setBestTruncatedAt(ty + child->y(), child); 24445ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen // If we were able to truncate, don't paint. 24455ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen if (ty + child->y() >= renderView->truncatedAt()) 24465ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen break; 24475ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen } 24485ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen } 24495ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen 245028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntPoint childPoint = flipForWritingMode(child, IntPoint(tx, ty), ParentToChildFlippingAdjustment); 24518f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!child->hasSelfPaintingLayer() && !child->isFloating()) 2452e14391e94c850b8bd03680c23b38978db68687a8John Reck child->paint(info, childPoint.x(), childPoint.y()); 24538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Check for page-break-after: always, and if it's set, break and bail. 245568513a70bcd92384395513322f1b801e7bf9c729Steve Block bool checkAfterAlways = !childrenInline() && (usePrintRect && child->style()->pageBreakAfter() == PBALWAYS); 2456545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (checkAfterAlways 2457dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block && (ty + child->y() + child->height()) > paintInfo.rect.y() 24582fc2651226baac27029e38c9d6ef883fa32084dbSteve Block && (ty + child->y() + child->height()) < paintInfo.rect.maxY()) { 2459bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen view()->setBestTruncatedAt(ty + child->y() + child->height() + max(0, child->collapsedMarginAfter()), this, true); 24608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 24618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 24628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 24638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 24648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2465635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid RenderBlock::paintCaret(PaintInfo& paintInfo, int tx, int ty, CaretType type) 24668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 246768513a70bcd92384395513322f1b801e7bf9c729Steve Block SelectionController* selection = type == CursorCaret ? frame()->selection() : frame()->page()->dragCaretController(); 2468635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 24695f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // Paint the caret if the SelectionController says so or if caret browsing is enabled 2470545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch bool caretBrowsing = frame()->settings() && frame()->settings()->caretBrowsingEnabled(); 2471635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderObject* caretPainter = selection->caretRenderer(); 24725f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (caretPainter == this && (selection->isContentEditable() || caretBrowsing)) { 2473635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // Convert the painting offset into the local coordinate system of this renderer, 2474635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // to match the localCaretRect computed by the SelectionController 2475635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project offsetForContents(tx, ty); 2476635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 24778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (type == CursorCaret) 2478545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch frame()->selection()->paintCaret(paintInfo.context, tx, ty, paintInfo.rect); 24798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 248068513a70bcd92384395513322f1b801e7bf9c729Steve Block frame()->selection()->paintDragCaret(paintInfo.context, tx, ty, paintInfo.rect); 24818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 24828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 24838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::paintObject(PaintInfo& paintInfo, int tx, int ty) 24858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 24868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project PaintPhase paintPhase = paintInfo.phase; 24878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 1. paint background, borders etc 24898f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if ((paintPhase == PaintPhaseBlockBackground || paintPhase == PaintPhaseChildBlockBackground) && style()->visibility() == VISIBLE) { 24908f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (hasBoxDecorations()) 24918f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian paintBoxDecorations(paintInfo, tx, ty); 24928f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (hasColumns()) 24938f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian paintColumnRules(paintInfo, tx, ty); 24948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 24958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (paintPhase == PaintPhaseMask && style()->visibility() == VISIBLE) { 24978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project paintMask(paintInfo, tx, ty); 24988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 24998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 25008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 25018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We're done. We don't bother painting any children. 25028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (paintPhase == PaintPhaseBlockBackground) 25038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 25048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2505dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block // Adjust our painting position if we're inside a scrolled layer (e.g., an overflow:auto div). 25068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int scrolledX = tx; 25078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int scrolledY = ty; 2508dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block if (hasOverflowClip()) { 2509dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block IntSize offset = layer()->scrolledContentOffset(); 2510dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block scrolledX -= offset.width(); 2511dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block scrolledY -= offset.height(); 2512dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block } 25138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 25148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 2. paint contents 25158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (paintPhase != PaintPhaseSelfOutline) { 25168f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (hasColumns()) 25178f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian paintColumnContents(paintInfo, scrolledX, scrolledY); 25188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 25198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project paintContents(paintInfo, scrolledX, scrolledY); 25208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 25218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 25228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 3. paint selection 25238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: Make this work with multi column layouts. For now don't fill gaps. 25248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool isPrinting = document()->printing(); 25258f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!isPrinting && !hasColumns()) 25268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project paintSelection(paintInfo, scrolledX, scrolledY); // Fill in gaps in selection on lines and between blocks. 25278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 25288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 4. paint floats. 2529635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (paintPhase == PaintPhaseFloat || paintPhase == PaintPhaseSelection || paintPhase == PaintPhaseTextClip) { 25308f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (hasColumns()) 25318f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian paintColumnContents(paintInfo, scrolledX, scrolledY, true); 25328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 25338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project paintFloats(paintInfo, scrolledX, scrolledY, paintPhase == PaintPhaseSelection || paintPhase == PaintPhaseTextClip); 25348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 25358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 25368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 5. paint outline. 2537635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if ((paintPhase == PaintPhaseOutline || paintPhase == PaintPhaseSelfOutline) && hasOutline() && style()->visibility() == VISIBLE) 2538dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block paintOutline(paintInfo.context, tx, ty, width(), height()); 25398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 25408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 6. paint continuation outlines. 2541635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if ((paintPhase == PaintPhaseOutline || paintPhase == PaintPhaseChildOutlines)) { 2542e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block RenderInline* inlineCont = inlineElementContinuation(); 2543e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (inlineCont && inlineCont->hasOutline() && inlineCont->style()->visibility() == VISIBLE) { 2544e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block RenderInline* inlineRenderer = toRenderInline(inlineCont->node()->renderer()); 2545e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke RenderBlock* cb = containingBlock(); 2546e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 2547e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke bool inlineEnclosedInSelfPaintingLayer = false; 2548e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke for (RenderBoxModelObject* box = inlineRenderer; box != cb; box = box->parent()->enclosingBoxModelObject()) { 2549e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke if (box->hasSelfPaintingLayer()) { 2550e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke inlineEnclosedInSelfPaintingLayer = true; 2551e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke break; 2552e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke } 2553e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke } 2554e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 2555e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke if (!inlineEnclosedInSelfPaintingLayer) 2556e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke cb->addContinuationWithOutline(inlineRenderer); 25578f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian else if (!inlineRenderer->firstLineBox()) 25588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian inlineRenderer->paintOutline(paintInfo.context, tx - x() + inlineRenderer->containingBlock()->x(), 25598f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian ty - y() + inlineRenderer->containingBlock()->y()); 25608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 25618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project paintContinuationOutlines(paintInfo, tx, ty); 25628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 25638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 25648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 7. paint caret. 25658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the caret's node's render object's containing block is this block, and the paint action is PaintPhaseForeground, 25668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // then paint the caret. 2567635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (paintPhase == PaintPhaseForeground) { 2568635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project paintCaret(paintInfo, scrolledX, scrolledY, CursorCaret); 2569635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project paintCaret(paintInfo, scrolledX, scrolledY, DragCaret); 25708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 25718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 25728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 25732fc2651226baac27029e38c9d6ef883fa32084dbSteve BlockIntPoint RenderBlock::flipFloatForWritingMode(const FloatingObject* child, const IntPoint& point) const 25742fc2651226baac27029e38c9d6ef883fa32084dbSteve Block{ 25752fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (!style()->isFlippedBlocksWritingMode()) 25762fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return point; 25772fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 25782fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // This is similar to the ParentToChildFlippingAdjustment in RenderBox::flipForWritingMode. We have to subtract out our left/top offsets twice, since 25792fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // it's going to get added back in. We hide this complication here so that the calling code looks normal for the unflipped 25802fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // case. 25812bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 25822fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return IntPoint(point.x(), point.y() + height() - child->renderer()->height() - 2 * yPositionForFloatIncludingMargin(child)); 25832fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return IntPoint(point.x() + width() - child->width() - 2 * xPositionForFloatIncludingMargin(child), point.y()); 25842fc2651226baac27029e38c9d6ef883fa32084dbSteve Block} 25852fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 25868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::paintFloats(PaintInfo& paintInfo, int tx, int ty, bool preservePhase) 25878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 25888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!m_floatingObjects) 25898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 25908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 259181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 259281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator end = floatingObjectSet.end(); 259381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 259481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 25958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Only paint the object if our m_shouldPaint flag is set. 25968f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (r->m_shouldPaint && !r->m_renderer->hasSelfPaintingLayer()) { 25978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project PaintInfo currentPaintInfo(paintInfo); 25988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project currentPaintInfo.phase = preservePhase ? paintInfo.phase : PaintPhaseBlockBackground; 25992fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntPoint childPoint = flipFloatForWritingMode(r, IntPoint(tx + xPositionForFloatIncludingMargin(r) - r->m_renderer->x(), ty + yPositionForFloatIncludingMargin(r) - r->m_renderer->y())); 2600e14391e94c850b8bd03680c23b38978db68687a8John Reck r->m_renderer->paint(currentPaintInfo, childPoint.x(), childPoint.y()); 26018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!preservePhase) { 26028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project currentPaintInfo.phase = PaintPhaseChildBlockBackgrounds; 2603e14391e94c850b8bd03680c23b38978db68687a8John Reck r->m_renderer->paint(currentPaintInfo, childPoint.x(), childPoint.y()); 26048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project currentPaintInfo.phase = PaintPhaseFloat; 2605e14391e94c850b8bd03680c23b38978db68687a8John Reck r->m_renderer->paint(currentPaintInfo, childPoint.x(), childPoint.y()); 26068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project currentPaintInfo.phase = PaintPhaseForeground; 2607e14391e94c850b8bd03680c23b38978db68687a8John Reck r->m_renderer->paint(currentPaintInfo, childPoint.x(), childPoint.y()); 26088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project currentPaintInfo.phase = PaintPhaseOutline; 2609e14391e94c850b8bd03680c23b38978db68687a8John Reck r->m_renderer->paint(currentPaintInfo, childPoint.x(), childPoint.y()); 26108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 26118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 26128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 26138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 26148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 26158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::paintEllipsisBoxes(PaintInfo& paintInfo, int tx, int ty) 26168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2617ca9cb53ed1119a3fd98fafa0972ffeb56dee1c24Steve Block if (!paintInfo.shouldPaintWithinRoot(this) || !firstLineBox()) 26188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 26198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 26208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->visibility() == VISIBLE && paintInfo.phase == PaintPhaseForeground) { 26218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We can check the first box and last box and avoid painting if we don't 26228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // intersect. 26238f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int yPos = ty + firstLineBox()->y(); 2624bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int h = lastLineBox()->y() + lastLineBox()->logicalHeight() - firstLineBox()->y(); 26252fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (yPos >= paintInfo.rect.maxY() || yPos + h <= paintInfo.rect.y()) 26268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 26278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 26288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // See if our boxes intersect with the dirty rect. If so, then we paint 26298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // them. Note that boxes can easily overlap, so we can't make any assumptions 26308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // based off positions of our first line box or our last line box. 26318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RootInlineBox* curr = firstRootBox(); curr; curr = curr->nextRootBox()) { 26328f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian yPos = ty + curr->y(); 2633bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen h = curr->logicalHeight(); 26342fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (curr->ellipsisBox() && yPos < paintInfo.rect.maxY() && yPos + h > paintInfo.rect.y()) 26352daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch curr->paintEllipsisBox(paintInfo, tx, ty, curr->lineTop(), curr->lineBottom()); 26368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 26378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 26388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 26398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2640e78cbe89e6f337f2f1fe40315be88f742b547151Steve BlockRenderInline* RenderBlock::inlineElementContinuation() const 2641e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block{ 2642cad810f21b803229eb11403f9209855525a25d57Steve Block RenderBoxModelObject* continuation = this->continuation(); 2643cad810f21b803229eb11403f9209855525a25d57Steve Block return continuation && continuation->isInline() ? toRenderInline(continuation) : 0; 2644e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block} 2645e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block 2646e78cbe89e6f337f2f1fe40315be88f742b547151Steve BlockRenderBlock* RenderBlock::blockElementContinuation() const 2647e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block{ 2648cad810f21b803229eb11403f9209855525a25d57Steve Block RenderBoxModelObject* currentContinuation = continuation(); 2649cad810f21b803229eb11403f9209855525a25d57Steve Block if (!currentContinuation || currentContinuation->isInline()) 2650e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block return 0; 2651cad810f21b803229eb11403f9209855525a25d57Steve Block RenderBlock* nextContinuation = toRenderBlock(currentContinuation); 2652e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (nextContinuation->isAnonymousBlock()) 2653e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block return nextContinuation->blockElementContinuation(); 2654545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return nextContinuation; 2655e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block} 2656e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block 2657635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectstatic ContinuationOutlineTableMap* continuationOutlineTable() 26588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2659635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project DEFINE_STATIC_LOCAL(ContinuationOutlineTableMap, table, ()); 26608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return &table; 26618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 26628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 26638f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::addContinuationWithOutline(RenderInline* flow) 26648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 26658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We can't make this work if the inline is in a layer. We'll just rely on the broken 26668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // way of painting. 2667e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block ASSERT(!flow->layer() && !flow->isInlineElementContinuation()); 26688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2669635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project ContinuationOutlineTableMap* table = continuationOutlineTable(); 26708f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian ListHashSet<RenderInline*>* continuations = table->get(this); 26718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!continuations) { 26728f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian continuations = new ListHashSet<RenderInline*>; 26738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project table->set(this, continuations); 26748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 26758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 26768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continuations->add(flow); 26778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 26788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 267981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochbool RenderBlock::paintsContinuationOutline(RenderInline* flow) 268081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch{ 268181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch ContinuationOutlineTableMap* table = continuationOutlineTable(); 268281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (table->isEmpty()) 268381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch return false; 268481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 268581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch ListHashSet<RenderInline*>* continuations = table->get(this); 268681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (!continuations) 268781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch return false; 268881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 268981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch return continuations->contains(flow); 269081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch} 269181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 26928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::paintContinuationOutlines(PaintInfo& info, int tx, int ty) 26938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2694635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project ContinuationOutlineTableMap* table = continuationOutlineTable(); 26958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (table->isEmpty()) 26968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 26978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 26988f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian ListHashSet<RenderInline*>* continuations = table->get(this); 26998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!continuations) 27008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 27018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Paint each continuation outline. 27038f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian ListHashSet<RenderInline*>::iterator end = continuations->end(); 27048f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian for (ListHashSet<RenderInline*>::iterator it = continuations->begin(); it != end; ++it) { 27058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Need to add in the coordinates of the intervening blocks. 27068f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderInline* flow = *it; 27078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderBlock* block = flow->containingBlock(); 27088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for ( ; block && block != this; block = block->containingBlock()) { 2709635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project tx += block->x(); 2710635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project ty += block->y(); 27118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 27128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(block); 27138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project flow->paintOutline(info.context, tx, ty); 27148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 27158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Delete 27178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project delete continuations; 27188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project table->remove(this); 27198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 27208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::shouldPaintSelectionGaps() const 27228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 27238f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return selectionState() != SelectionNone && style()->visibility() == VISIBLE && isSelectionRoot(); 27248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 27258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::isSelectionRoot() const 27278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 27288f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!node()) 27298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 27308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: Eventually tables should have to learn how to fill gaps between cells, at least in simple non-spanning cases. 27328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isTable()) 27338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 27348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isBody() || isRoot() || hasOverflowClip() || isRelPositioned() || 27368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project isFloatingOrPositioned() || isTableCell() || isInlineBlockOrInlineTable() || hasTransform() || 273728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu hasReflection() || hasMask() || isWritingModeRoot()) 27388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 27398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (view() && view()->selectionStart()) { 27418f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian Node* startElement = view()->selectionStart()->node(); 27428f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (startElement && startElement->rootEditableElement() == node()) 27438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 27448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 27458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 27478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 27488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2749643ca7872b450ea4efacab6188849e5aac2ba161Steve BlockGapRects RenderBlock::selectionGapRectsForRepaint(RenderBoxModelObject* repaintContainer) 27508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 27518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(!needsLayout()); 27528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!shouldPaintSelectionGaps()) 27548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return GapRects(); 27558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2756643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // FIXME: this is broken with transforms 2757643ca7872b450ea4efacab6188849e5aac2ba161Steve Block TransformState transformState(TransformState::ApplyTransformDirection, FloatPoint()); 2758643ca7872b450ea4efacab6188849e5aac2ba161Steve Block mapLocalToContainer(repaintContainer, false, false, transformState); 2759dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block IntPoint offsetFromRepaintContainer = roundedIntPoint(transformState.mappedPoint()); 2760643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 27618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (hasOverflowClip()) 2762dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block offsetFromRepaintContainer -= layer()->scrolledContentOffset(); 27638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2764635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project int lastTop = 0; 276528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int lastLeft = logicalLeftSelectionOffset(this, lastTop); 276628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int lastRight = logicalRightSelectionOffset(this, lastTop); 27678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 276828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu return selectionGaps(this, offsetFromRepaintContainer, IntSize(), lastTop, lastLeft, lastRight); 27698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 27708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::paintSelection(PaintInfo& paintInfo, int tx, int ty) 27728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 27738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (shouldPaintSelectionGaps() && paintInfo.phase == PaintPhaseForeground) { 2774635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project int lastTop = 0; 277528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int lastLeft = logicalLeftSelectionOffset(this, lastTop); 277628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int lastRight = logicalRightSelectionOffset(this, lastTop); 27778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project paintInfo.context->save(); 277828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntRect gapRectsBounds = selectionGaps(this, IntPoint(tx, ty), IntSize(), lastTop, lastLeft, lastRight, &paintInfo); 2779643ca7872b450ea4efacab6188849e5aac2ba161Steve Block if (!gapRectsBounds.isEmpty()) { 2780643ca7872b450ea4efacab6188849e5aac2ba161Steve Block if (RenderLayer* layer = enclosingLayer()) { 2781d0825bca7fe65beaee391d30da42e937db621564Steve Block gapRectsBounds.move(IntSize(-tx, -ty)); 2782d0825bca7fe65beaee391d30da42e937db621564Steve Block if (!hasLayer()) { 27836b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner IntRect localBounds(gapRectsBounds); 27846b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner flipForWritingMode(localBounds); 27856b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner gapRectsBounds = localToContainerQuad(FloatRect(localBounds), layer->renderer()).enclosingBoundingBox(); 2786692e5dbf12901edacf14812a6fae25462920af42Steve Block gapRectsBounds.move(layer->scrolledContentOffset()); 2787d0825bca7fe65beaee391d30da42e937db621564Steve Block } 2788643ca7872b450ea4efacab6188849e5aac2ba161Steve Block layer->addBlockSelectionGapsBounds(gapRectsBounds); 2789643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 2790643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 27918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project paintInfo.context->restore(); 27928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 27938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 27948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 279528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhustatic void clipOutPositionedObjects(const PaintInfo* paintInfo, const IntPoint& offset, RenderBlock::PositionedObjectsListHashSet* positionedObjects) 27968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 27978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!positionedObjects) 27988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 27998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2800e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block RenderBlock::PositionedObjectsListHashSet::const_iterator end = positionedObjects->end(); 2801e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block for (RenderBlock::PositionedObjectsListHashSet::const_iterator it = positionedObjects->begin(); it != end; ++it) { 2802635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderBox* r = *it; 280328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu paintInfo->context->clipOut(IntRect(offset.x() + r->x(), offset.y() + r->y(), r->width(), r->height())); 28048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 28058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 28068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 280728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhustatic int blockDirectionOffset(RenderBlock* rootBlock, const IntSize& offsetFromRootBlock) 280828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu{ 28092bde8e466a4451c7319e3a072d118917957d6554Steve Block return rootBlock->isHorizontalWritingMode() ? offsetFromRootBlock.height() : offsetFromRootBlock.width(); 281028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu} 281128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu 281228040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhustatic int inlineDirectionOffset(RenderBlock* rootBlock, const IntSize& offsetFromRootBlock) 281328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu{ 28142bde8e466a4451c7319e3a072d118917957d6554Steve Block return rootBlock->isHorizontalWritingMode() ? offsetFromRootBlock.width() : offsetFromRootBlock.height(); 281528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu} 281628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu 281728040489d744e0c5d475a88663056c9040ed5320Teng-Hui ZhuIntRect RenderBlock::logicalRectToPhysicalRect(const IntPoint& rootBlockPhysicalPosition, const IntRect& logicalRect) 281828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu{ 281928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntRect result; 28202bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 282128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result = logicalRect; 282228040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu else 282328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result = IntRect(logicalRect.y(), logicalRect.x(), logicalRect.height(), logicalRect.width()); 282428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu flipForWritingMode(result); 282528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result.move(rootBlockPhysicalPosition.x(), rootBlockPhysicalPosition.y()); 282628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu return result; 282728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu} 282828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu 282928040489d744e0c5d475a88663056c9040ed5320Teng-Hui ZhuGapRects RenderBlock::selectionGaps(RenderBlock* rootBlock, const IntPoint& rootBlockPhysicalPosition, const IntSize& offsetFromRootBlock, 283028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int& lastLogicalTop, int& lastLogicalLeft, int& lastLogicalRight, const PaintInfo* paintInfo) 28318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 28328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // IMPORTANT: Callers of this method that intend for painting to happen need to do a save/restore. 28338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Clip out floating and positioned objects when painting selection gaps. 28348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (paintInfo) { 28358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Note that we don't clip out overflow for positioned objects. We just stick to the border box. 283628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntRect flippedBlockRect = IntRect(offsetFromRootBlock.width(), offsetFromRootBlock.height(), width(), height()); 283728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu rootBlock->flipForWritingMode(flippedBlockRect); 283828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu flippedBlockRect.move(rootBlockPhysicalPosition.x(), rootBlockPhysicalPosition.y()); 283981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch clipOutPositionedObjects(paintInfo, flippedBlockRect.location(), m_positionedObjects.get()); 28408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isBody() || isRoot()) // The <body> must make sure to examine its containingBlock's positioned objects. 28418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderBlock* cb = containingBlock(); cb && !cb->isRenderView(); cb = cb->containingBlock()) 284281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch clipOutPositionedObjects(paintInfo, IntPoint(cb->x(), cb->y()), cb->m_positionedObjects.get()); // FIXME: Not right for flipped writing modes. 28438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_floatingObjects) { 284481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 284581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator end = floatingObjectSet.end(); 284681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 284781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 28482fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntRect floatBox = IntRect(offsetFromRootBlock.width() + xPositionForFloatIncludingMargin(r), 28492fc2651226baac27029e38c9d6ef883fa32084dbSteve Block offsetFromRootBlock.height() + yPositionForFloatIncludingMargin(r), 285028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu r->m_renderer->width(), r->m_renderer->height()); 285128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu rootBlock->flipForWritingMode(floatBox); 285228040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu floatBox.move(rootBlockPhysicalPosition.x(), rootBlockPhysicalPosition.y()); 285328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu paintInfo->context->clipOut(floatBox); 28548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 28558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 28568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 28578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 28588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: overflow: auto/scroll regions need more math here, since painting in the border box is different from painting in the padding box (one is scrolled, the other is 28598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // fixed). 28608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project GapRects result; 28618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!isBlockFlow()) // FIXME: Make multi-column selection gap filling work someday. 28628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 28638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 28645af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (hasColumns() || hasTransform() || style()->columnSpan()) { 28658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: We should learn how to gap fill multiple columns and transforms eventually. 286628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalTop = blockDirectionOffset(rootBlock, offsetFromRootBlock) + logicalHeight(); 286728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalLeft = logicalLeftSelectionOffset(rootBlock, logicalHeight()); 286828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalRight = logicalRightSelectionOffset(rootBlock, logicalHeight()); 28698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 28708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 28718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 28728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) 287328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result = inlineSelectionGaps(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, lastLogicalTop, lastLogicalLeft, lastLogicalRight, paintInfo); 28748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 287528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result = blockSelectionGaps(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, lastLogicalTop, lastLogicalLeft, lastLogicalRight, paintInfo); 28768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 28778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Go ahead and fill the vertical gap all the way to the bottom of our block if the selection extends past our block. 28788f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (rootBlock == this && (selectionState() != SelectionBoth && selectionState() != SelectionEnd)) 287928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result.uniteCenter(blockSelectionGap(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, lastLogicalTop, lastLogicalLeft, lastLogicalRight, 288028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu logicalHeight(), paintInfo)); 28818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 28828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 28838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 288428040489d744e0c5d475a88663056c9040ed5320Teng-Hui ZhuGapRects RenderBlock::inlineSelectionGaps(RenderBlock* rootBlock, const IntPoint& rootBlockPhysicalPosition, const IntSize& offsetFromRootBlock, 288528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int& lastLogicalTop, int& lastLogicalLeft, int& lastLogicalRight, const PaintInfo* paintInfo) 28868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 28878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project GapRects result; 28888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 28898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool containsStart = selectionState() == SelectionStart || selectionState() == SelectionBoth; 28908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 28918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!firstLineBox()) { 28928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (containsStart) { 289328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu // Go ahead and update our lastLogicalTop to be the bottom of the block. <hr>s or empty blocks with height can trip this 28948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // case. 289528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalTop = blockDirectionOffset(rootBlock, offsetFromRootBlock) + logicalHeight(); 289628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalLeft = logicalLeftSelectionOffset(rootBlock, logicalHeight()); 289728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalRight = logicalRightSelectionOffset(rootBlock, logicalHeight()); 28988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 28998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 29008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 29018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RootInlineBox* lastSelectedLine = 0; 29038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RootInlineBox* curr; 29048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (curr = firstRootBox(); curr && !curr->hasSelectedChildren(); curr = curr->nextRootBox()) { } 29058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Now paint the gaps for the lines. 29078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (; curr && curr->hasSelectedChildren(); curr = curr->nextRootBox()) { 29088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int selTop = curr->selectionTop(); 29098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int selHeight = curr->selectionHeight(); 29108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!containsStart && !lastSelectedLine && 29128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project selectionState() != SelectionStart && selectionState() != SelectionBoth) 291328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result.uniteCenter(blockSelectionGap(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, lastLogicalTop, lastLogicalLeft, lastLogicalRight, 291428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu selTop, paintInfo)); 291528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu 291628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntRect logicalRect(curr->logicalLeft(), selTop, curr->logicalWidth(), selTop + selHeight); 29172bde8e466a4451c7319e3a072d118917957d6554Steve Block logicalRect.move(isHorizontalWritingMode() ? offsetFromRootBlock : IntSize(offsetFromRootBlock.height(), offsetFromRootBlock.width())); 291828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntRect physicalRect = rootBlock->logicalRectToPhysicalRect(rootBlockPhysicalPosition, logicalRect); 29192bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!paintInfo || (isHorizontalWritingMode() && physicalRect.y() < paintInfo->rect.maxY() && physicalRect.maxY() > paintInfo->rect.y()) 29202bde8e466a4451c7319e3a072d118917957d6554Steve Block || (!isHorizontalWritingMode() && physicalRect.x() < paintInfo->rect.maxX() && physicalRect.maxX() > paintInfo->rect.x())) 292128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result.unite(curr->lineSelectionGap(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, selTop, selHeight, paintInfo)); 29228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project lastSelectedLine = curr; 29248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 29258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (containsStart && !lastSelectedLine) 29278f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // VisibleSelection must start just after our last line. 29288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project lastSelectedLine = lastRootBox(); 29298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (lastSelectedLine && selectionState() != SelectionEnd && selectionState() != SelectionBoth) { 29318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Go ahead and update our lastY to be the bottom of the last selected line. 293228040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalTop = blockDirectionOffset(rootBlock, offsetFromRootBlock) + lastSelectedLine->selectionBottom(); 293328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalLeft = logicalLeftSelectionOffset(rootBlock, lastSelectedLine->selectionBottom()); 293428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalRight = logicalRightSelectionOffset(rootBlock, lastSelectedLine->selectionBottom()); 29358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 29368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 29378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 29388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 293928040489d744e0c5d475a88663056c9040ed5320Teng-Hui ZhuGapRects RenderBlock::blockSelectionGaps(RenderBlock* rootBlock, const IntPoint& rootBlockPhysicalPosition, const IntSize& offsetFromRootBlock, 294028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int& lastLogicalTop, int& lastLogicalLeft, int& lastLogicalRight, const PaintInfo* paintInfo) 29418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 29428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project GapRects result; 29438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Go ahead and jump right to the first block child that contains some selected objects. 2945635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderBox* curr; 2946635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (curr = firstChildBox(); curr && curr->selectionState() == SelectionNone; curr = curr->nextSiblingBox()) { } 29478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2948635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (bool sawSelectionEnd = false; curr && !sawSelectionEnd; curr = curr->nextSiblingBox()) { 29498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project SelectionState childState = curr->selectionState(); 29508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childState == SelectionBoth || childState == SelectionEnd) 29518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project sawSelectionEnd = true; 29528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (curr->isFloatingOrPositioned()) 29548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; // We must be a normal flow object in order to even be considered. 29558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (curr->isRelPositioned() && curr->hasLayer()) { 29578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the relposition offset is anything other than 0, then treat this just like an absolute positioned element. 29588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Just disregard it completely. 2959635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project IntSize relOffset = curr->layer()->relativePositionOffset(); 2960635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (relOffset.width() || relOffset.height()) 29618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 29628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 29638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool paintsOwnSelection = curr->shouldPaintSelectionGaps() || curr->isTable(); // FIXME: Eventually we won't special-case table like this. 29658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool fillBlockGaps = paintsOwnSelection || (curr->canBeSelectionLeaf() && childState != SelectionNone); 29668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (fillBlockGaps) { 29678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We need to fill the vertical gap above this object. 29688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childState == SelectionEnd || childState == SelectionInside) 29698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Fill the gap above the object. 297028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result.uniteCenter(blockSelectionGap(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, lastLogicalTop, lastLogicalLeft, lastLogicalRight, 297128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu curr->logicalTop(), paintInfo)); 29728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Only fill side gaps for objects that paint their own selection if we know for sure the selection is going to extend all the way *past* 29748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // our object. We know this if the selection did not end inside our object. 29758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (paintsOwnSelection && (childState == SelectionStart || sawSelectionEnd)) 29768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childState = SelectionNone; 29778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Fill side gaps on this object based off its state. 29798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool leftGap, rightGap; 298028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu getSelectionGapInfo(childState, leftGap, rightGap); 29818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (leftGap) 298328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result.uniteLeft(logicalLeftSelectionGap(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, this, curr->logicalLeft(), curr->logicalTop(), curr->logicalHeight(), paintInfo)); 29848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (rightGap) 298528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result.uniteRight(logicalRightSelectionGap(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, this, curr->logicalRight(), curr->logicalTop(), curr->logicalHeight(), paintInfo)); 29868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 298728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu // Update lastLogicalTop to be just underneath the object. lastLogicalLeft and lastLogicalRight extend as far as 29888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // they can without bumping into floating or positioned objects. Ideally they will go right up 29898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // to the border of the root selection block. 299028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalTop = blockDirectionOffset(rootBlock, offsetFromRootBlock) + curr->logicalBottom(); 299128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalLeft = logicalLeftSelectionOffset(rootBlock, curr->logicalBottom()); 299228040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalRight = logicalRightSelectionOffset(rootBlock, curr->logicalBottom()); 29938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else if (childState != SelectionNone) 29948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We must be a block that has some selected object inside it. Go ahead and recur. 299528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result.unite(toRenderBlock(curr)->selectionGaps(rootBlock, rootBlockPhysicalPosition, IntSize(offsetFromRootBlock.width() + curr->x(), offsetFromRootBlock.height() + curr->y()), 299628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalTop, lastLogicalLeft, lastLogicalRight, paintInfo)); 29978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 29988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 29998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 30008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 300128040489d744e0c5d475a88663056c9040ed5320Teng-Hui ZhuIntRect RenderBlock::blockSelectionGap(RenderBlock* rootBlock, const IntPoint& rootBlockPhysicalPosition, const IntSize& offsetFromRootBlock, 300228040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int lastLogicalTop, int lastLogicalLeft, int lastLogicalRight, int logicalBottom, const PaintInfo* paintInfo) 30038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 300428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int logicalTop = lastLogicalTop; 300528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int logicalHeight = blockDirectionOffset(rootBlock, offsetFromRootBlock) + logicalBottom - logicalTop; 300628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (logicalHeight <= 0) 30078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return IntRect(); 30088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 30098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Get the selection offsets for the bottom of the gap 301028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int logicalLeft = max(lastLogicalLeft, logicalLeftSelectionOffset(rootBlock, logicalBottom)); 301128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int logicalRight = min(lastLogicalRight, logicalRightSelectionOffset(rootBlock, logicalBottom)); 301228040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int logicalWidth = logicalRight - logicalLeft; 301328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (logicalWidth <= 0) 30148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return IntRect(); 30158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 301628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntRect gapRect = rootBlock->logicalRectToPhysicalRect(rootBlockPhysicalPosition, IntRect(logicalLeft, logicalTop, logicalWidth, logicalHeight)); 30178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (paintInfo) 3018643ca7872b450ea4efacab6188849e5aac2ba161Steve Block paintInfo->context->fillRect(gapRect, selectionBackgroundColor(), style()->colorSpace()); 30198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return gapRect; 30208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 30218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 302228040489d744e0c5d475a88663056c9040ed5320Teng-Hui ZhuIntRect RenderBlock::logicalLeftSelectionGap(RenderBlock* rootBlock, const IntPoint& rootBlockPhysicalPosition, const IntSize& offsetFromRootBlock, 302328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu RenderObject* selObj, int logicalLeft, int logicalTop, int logicalHeight, const PaintInfo* paintInfo) 30248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 302528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int rootBlockLogicalTop = blockDirectionOffset(rootBlock, offsetFromRootBlock) + logicalTop; 302628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int rootBlockLogicalLeft = max(logicalLeftSelectionOffset(rootBlock, logicalTop), logicalLeftSelectionOffset(rootBlock, logicalTop + logicalHeight)); 302728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int rootBlockLogicalRight = min(inlineDirectionOffset(rootBlock, offsetFromRootBlock) + logicalLeft, min(logicalRightSelectionOffset(rootBlock, logicalTop), logicalRightSelectionOffset(rootBlock, logicalTop + logicalHeight))); 302828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int rootBlockLogicalWidth = rootBlockLogicalRight - rootBlockLogicalLeft; 302928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (rootBlockLogicalWidth <= 0) 30308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return IntRect(); 30318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 303228040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntRect gapRect = rootBlock->logicalRectToPhysicalRect(rootBlockPhysicalPosition, IntRect(rootBlockLogicalLeft, rootBlockLogicalTop, rootBlockLogicalWidth, logicalHeight)); 30338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (paintInfo) 3034643ca7872b450ea4efacab6188849e5aac2ba161Steve Block paintInfo->context->fillRect(gapRect, selObj->selectionBackgroundColor(), selObj->style()->colorSpace()); 30358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return gapRect; 30368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 30378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 303828040489d744e0c5d475a88663056c9040ed5320Teng-Hui ZhuIntRect RenderBlock::logicalRightSelectionGap(RenderBlock* rootBlock, const IntPoint& rootBlockPhysicalPosition, const IntSize& offsetFromRootBlock, 303928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu RenderObject* selObj, int logicalRight, int logicalTop, int logicalHeight, const PaintInfo* paintInfo) 30408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 304128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int rootBlockLogicalTop = blockDirectionOffset(rootBlock, offsetFromRootBlock) + logicalTop; 304228040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int rootBlockLogicalLeft = max(inlineDirectionOffset(rootBlock, offsetFromRootBlock) + logicalRight, max(logicalLeftSelectionOffset(rootBlock, logicalTop), logicalLeftSelectionOffset(rootBlock, logicalTop + logicalHeight))); 304328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int rootBlockLogicalRight = min(logicalRightSelectionOffset(rootBlock, logicalTop), logicalRightSelectionOffset(rootBlock, logicalTop + logicalHeight)); 304428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int rootBlockLogicalWidth = rootBlockLogicalRight - rootBlockLogicalLeft; 304528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (rootBlockLogicalWidth <= 0) 30468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return IntRect(); 30478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 304828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntRect gapRect = rootBlock->logicalRectToPhysicalRect(rootBlockPhysicalPosition, IntRect(rootBlockLogicalLeft, rootBlockLogicalTop, rootBlockLogicalWidth, logicalHeight)); 30498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (paintInfo) 3050643ca7872b450ea4efacab6188849e5aac2ba161Steve Block paintInfo->context->fillRect(gapRect, selObj->selectionBackgroundColor(), selObj->style()->colorSpace()); 30518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return gapRect; 30528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 30538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 305428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhuvoid RenderBlock::getSelectionGapInfo(SelectionState state, bool& leftGap, bool& rightGap) 30558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 3056a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bool ltr = style()->isLeftToRightDirection(); 30578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project leftGap = (state == RenderObject::SelectionInside) || 30588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (state == RenderObject::SelectionEnd && ltr) || 30598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (state == RenderObject::SelectionStart && !ltr); 30608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project rightGap = (state == RenderObject::SelectionInside) || 30618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (state == RenderObject::SelectionStart && ltr) || 30628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (state == RenderObject::SelectionEnd && !ltr); 30638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 30648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 306528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhuint RenderBlock::logicalLeftSelectionOffset(RenderBlock* rootBlock, int position) 30668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 306728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int logicalLeft = logicalLeftOffsetForLine(position, false); 306828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (logicalLeft == logicalLeftOffsetForContent()) { 30698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (rootBlock != this) 30708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The border can potentially be further extended by our containingBlock(). 307128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu return containingBlock()->logicalLeftSelectionOffset(rootBlock, position + logicalTop()); 307228040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu return logicalLeft; 307328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu } else { 30748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderBlock* cb = this; 30758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (cb != rootBlock) { 307628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu logicalLeft += cb->logicalLeft(); 30778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project cb = cb->containingBlock(); 30788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 30798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 308028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu return logicalLeft; 30818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 30828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 308328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhuint RenderBlock::logicalRightSelectionOffset(RenderBlock* rootBlock, int position) 30848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 308528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int logicalRight = logicalRightOffsetForLine(position, false); 308628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (logicalRight == logicalRightOffsetForContent()) { 30878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (rootBlock != this) 30888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The border can potentially be further extended by our containingBlock(). 308928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu return containingBlock()->logicalRightSelectionOffset(rootBlock, position + logicalTop()); 309028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu return logicalRight; 309128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu } else { 30928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderBlock* cb = this; 30938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (cb != rootBlock) { 309428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu logicalRight += cb->logicalLeft(); 30958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project cb = cb->containingBlock(); 30968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 30978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 309828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu return logicalRight; 30998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 31008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3101635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid RenderBlock::insertPositionedObject(RenderBox* o) 31028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 31038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Create the list of special objects if we don't aleady have one 31048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!m_positionedObjects) 310581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_positionedObjects = adoptPtr(new PositionedObjectsListHashSet); 31068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_positionedObjects->add(o); 31088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 31098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3110635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid RenderBlock::removePositionedObject(RenderBox* o) 31118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 31128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_positionedObjects) 31138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_positionedObjects->remove(o); 31148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 31158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::removePositionedObjects(RenderBlock* o) 31178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 31188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!m_positionedObjects) 31198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 31208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3121635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderBox* r; 31228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Iterator end = m_positionedObjects->end(); 31248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3125635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project Vector<RenderBox*, 16> deadObjects; 31268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (Iterator it = m_positionedObjects->begin(); it != end; ++it) { 31288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project r = *it; 31298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!o || r->isDescendantOf(o)) { 31308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (o) 31318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project r->setChildNeedsLayout(true, false); 31328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // It is parent blocks job to add positioned child to positioned objects list of its containing block 31348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Parent layout needs to be invalidated to ensure this happens. 31358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* p = r->parent(); 31368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (p && !p->isRenderBlock()) 31378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project p = p->parent(); 31388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (p) 31398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project p->setChildNeedsLayout(true); 31408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project deadObjects.append(r); 31428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 31438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 31448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (unsigned i = 0; i < deadObjects.size(); i++) 31468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_positionedObjects->remove(deadObjects.at(i)); 31478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 31488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 314968513a70bcd92384395513322f1b801e7bf9c729Steve BlockRenderBlock::FloatingObject* RenderBlock::insertFloatingObject(RenderBox* o) 31508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 31518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(o->isFloating()); 31528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Create the list of special objects if we don't aleady have one 315481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (!m_floatingObjects) 315581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects = adoptPtr(new FloatingObjects); 315681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch else { 31578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Don't insert the object again if it's already in the list 315881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 315981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator it = floatingObjectSet.find<RenderBox*, FloatingObjectHashTranslator>(o); 316081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (it != floatingObjectSet.end()) 316181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch return *it; 31628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 31638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Create the special object entry & append it to the list 31658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project FloatingObject* newObj = new FloatingObject(o->style()->floating() == FLEFT ? FloatingObject::FloatLeft : FloatingObject::FloatRight); 316768513a70bcd92384395513322f1b801e7bf9c729Steve Block 316868513a70bcd92384395513322f1b801e7bf9c729Steve Block // Our location is irrelevant if we're unsplittable or no pagination is in effect. 316968513a70bcd92384395513322f1b801e7bf9c729Steve Block // Just go ahead and lay out the float. 3170a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bool isChildRenderBlock = o->isRenderBlock(); 3171f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (isChildRenderBlock && !o->needsLayout() && view()->layoutState()->pageLogicalHeightChanged()) 3172a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch o->setChildNeedsLayout(true, false); 3173a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 3174f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch bool affectedByPagination = isChildRenderBlock && view()->layoutState()->m_pageLogicalHeight; 3175a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!affectedByPagination || isWritingModeRoot()) // We are unsplittable if we're a block flow root. 317668513a70bcd92384395513322f1b801e7bf9c729Steve Block o->layoutIfNeeded(); 317768513a70bcd92384395513322f1b801e7bf9c729Steve Block else { 3178bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen o->computeLogicalWidth(); 3179bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen o->computeBlockDirectionMargins(this); 318068513a70bcd92384395513322f1b801e7bf9c729Steve Block } 3181a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalWidthForFloat(newObj, logicalWidthForChild(o) + marginStartForChild(o) + marginEndForChild(o)); 318268513a70bcd92384395513322f1b801e7bf9c729Steve Block 31838f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian newObj->m_shouldPaint = !o->hasSelfPaintingLayer(); // If a layer exists, the float will paint itself. Otherwise someone else will. 31848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project newObj->m_isDescendant = true; 31858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project newObj->m_renderer = o; 31868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 318781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->increaseObjectsCount(newObj->type()); 318881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->set().add(newObj); 318968513a70bcd92384395513322f1b801e7bf9c729Steve Block 319068513a70bcd92384395513322f1b801e7bf9c729Steve Block return newObj; 31918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 31928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3193635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid RenderBlock::removeFloatingObject(RenderBox* o) 31948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 31958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_floatingObjects) { 319681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 319781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet::iterator it = floatingObjectSet.find<RenderBox*, FloatingObjectHashTranslator>(o); 319881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (it != floatingObjectSet.end()) { 319981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 320081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (childrenInline()) { 320181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch int logicalTop = logicalTopForFloat(r); 320281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch int logicalBottom = logicalBottomForFloat(r); 320381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 320481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch // Fix for https://bugs.webkit.org/show_bug.cgi?id=54995. 320581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (logicalBottom < 0 || logicalBottom < logicalTop || logicalTop == numeric_limits<int>::max()) 320681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch logicalBottom = numeric_limits<int>::max(); 320781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch else { 3208dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block // Special-case zero- and less-than-zero-height floats: those don't touch 3209dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block // the line that they're on, but it still needs to be dirtied. This is 3210dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block // accomplished by pretending they have a height of 1. 321181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch logicalBottom = max(logicalBottom, logicalTop + 1); 3212dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block } 321354cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block if (r->m_originatingLine) { 321454cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block ASSERT(r->m_originatingLine->renderer() == this); 321554cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block r->m_originatingLine->markDirty(); 321654cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block#if !ASSERT_DISABLED 321754cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block r->m_originatingLine = 0; 321854cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block#endif 321954cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block } 322081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch markLinesDirtyInBlockRange(0, logicalBottom); 32218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 322281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->decreaseObjectsCount(r->type()); 322381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch floatingObjectSet.remove(it); 322454cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block ASSERT(!r->m_originatingLine); 322581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch delete r; 32268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 32278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 32288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 32298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 32302fc2651226baac27029e38c9d6ef883fa32084dbSteve Blockvoid RenderBlock::removeFloatingObjectsBelow(FloatingObject* lastFloat, int logicalOffset) 323168513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 323268513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!m_floatingObjects) 323368513a70bcd92384395513322f1b801e7bf9c729Steve Block return; 323468513a70bcd92384395513322f1b801e7bf9c729Steve Block 323581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 323681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* curr = floatingObjectSet.last(); 32372fc2651226baac27029e38c9d6ef883fa32084dbSteve Block while (curr != lastFloat && (!curr->isPlaced() || logicalTopForFloat(curr) >= logicalOffset)) { 323881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->decreaseObjectsCount(curr->type()); 323981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch floatingObjectSet.removeLast(); 324054cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block ASSERT(!curr->m_originatingLine); 324181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch delete curr; 324281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch curr = floatingObjectSet.last(); 324368513a70bcd92384395513322f1b801e7bf9c729Steve Block } 324468513a70bcd92384395513322f1b801e7bf9c729Steve Block} 324568513a70bcd92384395513322f1b801e7bf9c729Steve Block 32468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::positionNewFloats() 32478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 32488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!m_floatingObjects) 32498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 325081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 325181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 325281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (floatingObjectSet.isEmpty()) 325381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch return false; 32548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 32558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If all floats have already been positioned, then we have no work to do. 325681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (floatingObjectSet.last()->isPlaced()) 32578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 32588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 32598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Move backwards through our floating object list until we find a float that has 32608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // already been positioned. Then we'll be able to move forward, positioning all of 32618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the new floats that need it. 326281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator it = floatingObjectSet.end(); 326381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch --it; // Go to last item. 326481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator begin = floatingObjectSet.begin(); 326581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* lastPlacedFloatingObject = 0; 326681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch while (it != begin) { 326781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch --it; 326881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if ((*it)->isPlaced()) { 326981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch lastPlacedFloatingObject = *it; 327081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch ++it; 327181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch break; 327281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch } 32738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 32748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3275a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTop = logicalHeight(); 32768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3277a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The float cannot start above the top position of the last positioned float. 327881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (lastPlacedFloatingObject) 327981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch logicalTop = max(logicalTopForFloat(lastPlacedFloatingObject), logicalTop); 32808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 328181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator end = floatingObjectSet.end(); 32828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Now walk through the set of unpositioned floats and place them. 328381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (; it != end; ++it) { 328481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* floatingObject = *it; 32858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The containing block is responsible for positioning floats, so if we have floats in our 32868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // list that come from somewhere else, do not attempt to position them. 328781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (floatingObject->renderer()->containingBlock() != this) 32888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 32898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3290a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch RenderBox* childBox = floatingObject->renderer(); 3291a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int childLogicalLeftMargin = style()->isLeftToRightDirection() ? marginStartForChild(childBox) : marginEndForChild(childBox); 32928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3293a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int rightOffset = logicalRightOffsetForContent(); // Constant part of right offset. 3294a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int leftOffset = logicalLeftOffsetForContent(); // Constant part of left offset. 3295a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int floatLogicalWidth = logicalWidthForFloat(floatingObject); // The width we look for. 3296a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (rightOffset - leftOffset < floatLogicalWidth) 3297a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatLogicalWidth = rightOffset - leftOffset; // Never look for more than what will be available. 32988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3299a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch IntRect oldRect(childBox->x(), childBox->y() , childBox->width(), childBox->height()); 330068513a70bcd92384395513322f1b801e7bf9c729Steve Block 3301a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (childBox->style()->clear() & CLEFT) 3302a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTop = max(lowestFloatLogicalBottom(FloatingObject::FloatLeft), logicalTop); 3303a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (childBox->style()->clear() & CRIGHT) 3304a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTop = max(lowestFloatLogicalBottom(FloatingObject::FloatRight), logicalTop); 33058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3306a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int floatLogicalLeft; 3307a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (childBox->style()->floating() == FLEFT) { 33088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int heightRemainingLeft = 1; 33098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int heightRemainingRight = 1; 3310a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatLogicalLeft = logicalLeftOffsetForLine(logicalTop, leftOffset, false, &heightRemainingLeft); 3311a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch while (logicalRightOffsetForLine(logicalTop, rightOffset, false, &heightRemainingRight) - floatLogicalLeft < floatLogicalWidth) { 3312a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTop += min(heightRemainingLeft, heightRemainingRight); 3313a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatLogicalLeft = logicalLeftOffsetForLine(logicalTop, leftOffset, false, &heightRemainingLeft); 33148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3315a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatLogicalLeft = max(0, floatLogicalLeft); 33168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 33178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int heightRemainingLeft = 1; 33188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int heightRemainingRight = 1; 3319a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatLogicalLeft = logicalRightOffsetForLine(logicalTop, rightOffset, false, &heightRemainingRight); 3320a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch while (floatLogicalLeft - logicalLeftOffsetForLine(logicalTop, leftOffset, false, &heightRemainingLeft) < floatLogicalWidth) { 3321a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTop += min(heightRemainingLeft, heightRemainingRight); 3322a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatLogicalLeft = logicalRightOffsetForLine(logicalTop, rightOffset, false, &heightRemainingRight); 33238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3324a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatLogicalLeft -= logicalWidthForFloat(floatingObject); // Use the original width of the float here, since the local variable 3325a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // |floatLogicalWidth| was capped to the available line width. 3326a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // See fast/block/float/clamped-right-float.html. 33278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3328a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 3329a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalLeftForFloat(floatingObject, floatLogicalLeft); 3330a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalLeftForChild(childBox, floatLogicalLeft + childLogicalLeftMargin); 3331a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalTopForChild(childBox, logicalTop + marginBeforeForChild(childBox)); 33328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 333368513a70bcd92384395513322f1b801e7bf9c729Steve Block if (view()->layoutState()->isPaginated()) { 3334a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch RenderBlock* childBlock = childBox->isRenderBlock() ? toRenderBlock(childBox) : 0; 33358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3336a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!childBox->needsLayout()) 3337a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBox->markForPaginationRelayoutIfNeeded();; 3338a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBox->layoutIfNeeded(); 333968513a70bcd92384395513322f1b801e7bf9c729Steve Block 334068513a70bcd92384395513322f1b801e7bf9c729Steve Block // If we are unsplittable and don't fit, then we need to move down. 334168513a70bcd92384395513322f1b801e7bf9c729Steve Block // We include our margins as part of the unsplittable area. 3342a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int newLogicalTop = adjustForUnsplittableChild(childBox, logicalTop, true); 334368513a70bcd92384395513322f1b801e7bf9c729Steve Block 334468513a70bcd92384395513322f1b801e7bf9c729Steve Block // See if we have a pagination strut that is making us move down further. 334568513a70bcd92384395513322f1b801e7bf9c729Steve Block // Note that an unsplittable child can't also have a pagination strut, so this is 334668513a70bcd92384395513322f1b801e7bf9c729Steve Block // exclusive with the case above. 334768513a70bcd92384395513322f1b801e7bf9c729Steve Block if (childBlock && childBlock->paginationStrut()) { 3348a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch newLogicalTop += childBlock->paginationStrut(); 334968513a70bcd92384395513322f1b801e7bf9c729Steve Block childBlock->setPaginationStrut(0); 335068513a70bcd92384395513322f1b801e7bf9c729Steve Block } 335168513a70bcd92384395513322f1b801e7bf9c729Steve Block 3352a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (newLogicalTop != logicalTop) { 3353a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatingObject->m_paginationStrut = newLogicalTop - logicalTop; 3354a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTop = newLogicalTop; 3355a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalTopForChild(childBox, logicalTop + marginBeforeForChild(childBox)); 335668513a70bcd92384395513322f1b801e7bf9c729Steve Block if (childBlock) 335768513a70bcd92384395513322f1b801e7bf9c729Steve Block childBlock->setChildNeedsLayout(true, false); 3358a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBox->layoutIfNeeded(); 335968513a70bcd92384395513322f1b801e7bf9c729Steve Block } 336068513a70bcd92384395513322f1b801e7bf9c729Steve Block } 336168513a70bcd92384395513322f1b801e7bf9c729Steve Block 3362a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalTopForFloat(floatingObject, logicalTop); 3363a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeightForFloat(floatingObject, logicalHeightForChild(childBox) + marginBeforeForChild(childBox) + marginAfterForChild(childBox)); 3364a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 3365a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatingObject->setIsPlaced(); 3366a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 33678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the child moved, we have to repaint it. 3368a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (childBox->checkForRepaintDuringLayout()) 3369a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBox->repaintDuringLayoutIfMoved(oldRect); 33708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 33718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 33728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 33738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 33748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::newLine(EClear clear) 33758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 33768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project positionNewFloats(); 33778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // set y position 33788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int newY = 0; 33790bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch switch (clear) 33808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 33818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project case CLEFT: 3382a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch newY = lowestFloatLogicalBottom(FloatingObject::FloatLeft); 33838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 33848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project case CRIGHT: 3385a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch newY = lowestFloatLogicalBottom(FloatingObject::FloatRight); 33868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 33878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project case CBOTH: 3388a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch newY = lowestFloatLogicalBottom(); 33898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project default: 33908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 33918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3392635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (height() < newY) 3393bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setLogicalHeight(newY); 33948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 33958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 33968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::addPercentHeightDescendant(RenderBox* descendant) 33978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 33988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!gPercentHeightDescendantsMap) { 33998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project gPercentHeightDescendantsMap = new PercentHeightDescendantsMap; 34008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project gPercentHeightContainerMap = new PercentHeightContainerMap; 34018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HashSet<RenderBox*>* descendantSet = gPercentHeightDescendantsMap->get(this); 34048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!descendantSet) { 34058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project descendantSet = new HashSet<RenderBox*>; 34068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project gPercentHeightDescendantsMap->set(this, descendantSet); 34078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool added = descendantSet->add(descendant).second; 34098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!added) { 34108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(gPercentHeightContainerMap->get(descendant)); 34118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(gPercentHeightContainerMap->get(descendant)->contains(this)); 34128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 34138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HashSet<RenderBlock*>* containerSet = gPercentHeightContainerMap->get(descendant); 34168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!containerSet) { 34178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project containerSet = new HashSet<RenderBlock*>; 34188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project gPercentHeightContainerMap->set(descendant, containerSet); 34198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(!containerSet->contains(this)); 34218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project containerSet->add(this); 34228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 34238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::removePercentHeightDescendant(RenderBox* descendant) 34258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 34268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!gPercentHeightContainerMap) 34278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 34288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HashSet<RenderBlock*>* containerSet = gPercentHeightContainerMap->take(descendant); 34308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!containerSet) 34318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 34328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HashSet<RenderBlock*>::iterator end = containerSet->end(); 34348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (HashSet<RenderBlock*>::iterator it = containerSet->begin(); it != end; ++it) { 34358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderBlock* container = *it; 34368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HashSet<RenderBox*>* descendantSet = gPercentHeightDescendantsMap->get(container); 34378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(descendantSet); 34388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!descendantSet) 34398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 34408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(descendantSet->contains(descendant)); 34418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project descendantSet->remove(descendant); 34428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (descendantSet->isEmpty()) { 34438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project gPercentHeightDescendantsMap->remove(container); 34448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project delete descendantSet; 34458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project delete containerSet; 34498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 34508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34518f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianHashSet<RenderBox*>* RenderBlock::percentHeightDescendants() const 34528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 34538f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return gPercentHeightDescendantsMap ? gPercentHeightDescendantsMap->get(this) : 0; 34548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 34558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34562bde8e466a4451c7319e3a072d118917957d6554Steve Block// FIXME: The logicalLeftOffsetForLine/logicalRightOffsetForLine functions are very slow if there are many floats 34572bde8e466a4451c7319e3a072d118917957d6554Steve Block// present. We need to add a structure to floating objects to represent "lines" of floats. Then instead of checking 34582bde8e466a4451c7319e3a072d118917957d6554Steve Block// each float individually, we'd just walk backwards through the "lines" and stop when we hit a line that is fully above 34592bde8e466a4451c7319e3a072d118917957d6554Steve Block// the vertical offset that we'd like to check. Computing the "lines" would be rather complicated, but could replace the left 34602bde8e466a4451c7319e3a072d118917957d6554Steve Block// objects and right objects count hack that is currently used here. 3461a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::logicalLeftOffsetForLine(int logicalTop, int fixedOffset, bool applyTextIndent, int* heightRemaining) const 34628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 34638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int left = fixedOffset; 346481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (m_floatingObjects && m_floatingObjects->hasLeftObjects()) { 3465a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (heightRemaining) 3466a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch *heightRemaining = 1; 346781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 34682bde8e466a4451c7319e3a072d118917957d6554Steve Block // We know the list is non-empty, since we have "left" objects to search for. 34692bde8e466a4451c7319e3a072d118917957d6554Steve Block // Therefore we can assume that begin != end, and that we can do at least one 34702bde8e466a4451c7319e3a072d118917957d6554Steve Block // decrement. 347181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 34722bde8e466a4451c7319e3a072d118917957d6554Steve Block FloatingObjectSetIterator begin = floatingObjectSet.begin(); 34732bde8e466a4451c7319e3a072d118917957d6554Steve Block FloatingObjectSetIterator it = floatingObjectSet.end(); 34742bde8e466a4451c7319e3a072d118917957d6554Steve Block do { 34752bde8e466a4451c7319e3a072d118917957d6554Steve Block --it; 347681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 3477a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (r->isPlaced() && logicalTopForFloat(r) <= logicalTop && logicalBottomForFloat(r) > logicalTop 3478a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch && r->type() == FloatingObject::FloatLeft 3479a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch && logicalRightForFloat(r) > left) { 34802bde8e466a4451c7319e3a072d118917957d6554Steve Block left = max(left, logicalRightForFloat(r)); 3481a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (heightRemaining) 3482a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch *heightRemaining = logicalBottomForFloat(r) - logicalTop; 34838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34842bde8e466a4451c7319e3a072d118917957d6554Steve Block } while (it != begin); 34858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3487a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (applyTextIndent && style()->isLeftToRightDirection()) { 3488635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project int cw = 0; 34898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->textIndent().isPercent()) 3490bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen cw = containingBlock()->availableLogicalWidth(); 34918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project left += style()->textIndent().calcMinValue(cw); 34928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return left; 34958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 34968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3497a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::logicalRightOffsetForLine(int logicalTop, int fixedOffset, bool applyTextIndent, int* heightRemaining) const 34988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 34998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int right = fixedOffset; 35008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 350181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (m_floatingObjects && m_floatingObjects->hasRightObjects()) { 3502a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (heightRemaining) 3503a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch *heightRemaining = 1; 35042bde8e466a4451c7319e3a072d118917957d6554Steve Block 35052bde8e466a4451c7319e3a072d118917957d6554Steve Block // We know the list is non-empty, since we have "right" objects to search for. 35062bde8e466a4451c7319e3a072d118917957d6554Steve Block // Therefore we can assume that begin != end, and that we can do at least one 35072bde8e466a4451c7319e3a072d118917957d6554Steve Block // decrement. 350881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 35092bde8e466a4451c7319e3a072d118917957d6554Steve Block FloatingObjectSetIterator begin = floatingObjectSet.begin(); 35102bde8e466a4451c7319e3a072d118917957d6554Steve Block FloatingObjectSetIterator it = floatingObjectSet.end(); 35112bde8e466a4451c7319e3a072d118917957d6554Steve Block do { 35122bde8e466a4451c7319e3a072d118917957d6554Steve Block --it; 351381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 3514a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (r->isPlaced() && logicalTopForFloat(r) <= logicalTop && logicalBottomForFloat(r) > logicalTop 3515a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch && r->type() == FloatingObject::FloatRight 3516a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch && logicalLeftForFloat(r) < right) { 35172bde8e466a4451c7319e3a072d118917957d6554Steve Block right = min(right, logicalLeftForFloat(r)); 3518a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (heightRemaining) 3519a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch *heightRemaining = logicalBottomForFloat(r) - logicalTop; 35208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 35212bde8e466a4451c7319e3a072d118917957d6554Steve Block } while (it != begin); 35228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 35238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3524a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (applyTextIndent && !style()->isLeftToRightDirection()) { 3525635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project int cw = 0; 35268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->textIndent().isPercent()) 3527bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen cw = containingBlock()->availableLogicalWidth(); 35288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project right -= style()->textIndent().calcMinValue(cw); 35298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 35308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 35318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return right; 35328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 35338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 353481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochint RenderBlock::availableLogicalWidthForLine(int position, bool firstLine) const 35358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 3536bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int result = logicalRightOffsetForLine(position, firstLine) - logicalLeftOffsetForLine(position, firstLine); 35378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return (result < 0) ? 0 : result; 35388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 35398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3540a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::nextFloatLogicalBottomBelow(int logicalHeight) const 35418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 35428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!m_floatingObjects) 35438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 35448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 35458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int bottom = INT_MAX; 354681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 354781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator end = floatingObjectSet.end(); 354881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 354981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 3550a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int floatBottom = logicalBottomForFloat(r); 3551a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (floatBottom > logicalHeight) 3552a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bottom = min(floatBottom, bottom); 35538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 35548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 35558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return bottom == INT_MAX ? 0 : bottom; 35568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 35578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3558a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::lowestFloatLogicalBottom(FloatingObject::Type floatType) const 35598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 3560a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!m_floatingObjects) 3561a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return 0; 3562a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int lowestFloatBottom = 0; 356381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 356481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator end = floatingObjectSet.end(); 356581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 356681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 3567a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (r->isPlaced() && r->type() & floatType) 3568a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch lowestFloatBottom = max(lowestFloatBottom, logicalBottomForFloat(r)); 3569a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 3570a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return lowestFloatBottom; 35718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 35728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3573a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::markLinesDirtyInBlockRange(int logicalTop, int logicalBottom, RootInlineBox* highest) 35748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 3575a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (logicalTop >= logicalBottom) 35768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 35778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 35788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RootInlineBox* lowestDirtyLine = lastRootBox(); 35798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RootInlineBox* afterLowest = lowestDirtyLine; 35802fc2651226baac27029e38c9d6ef883fa32084dbSteve Block while (lowestDirtyLine && lowestDirtyLine->blockLogicalHeight() >= logicalBottom && logicalBottom < numeric_limits<int>::max()) { 35818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project afterLowest = lowestDirtyLine; 35828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project lowestDirtyLine = lowestDirtyLine->prevRootBox(); 35838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 35848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 358581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch while (afterLowest && afterLowest != highest && (afterLowest->blockLogicalHeight() >= logicalTop || afterLowest->blockLogicalHeight() < 0)) { 35868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project afterLowest->markDirty(); 35878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project afterLowest = afterLowest->prevRootBox(); 35888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 35898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 35908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 35918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::clearFloats() 35928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 35938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Inline blocks are covered by the isReplaced() check in the avoidFloats method. 35948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (avoidsFloats() || isRoot() || isRenderView() || isFloatingOrPositioned() || isTableCell()) { 359581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (m_floatingObjects) { 359681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch deleteAllValues(m_floatingObjects->set()); 35978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_floatingObjects->clear(); 359881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch } 35998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 36008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 36028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project typedef HashMap<RenderObject*, FloatingObject*> RendererToFloatInfoMap; 36038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RendererToFloatInfoMap floatMap; 36048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 36058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_floatingObjects) { 360681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 36078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) { 360881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet::iterator end = floatingObjectSet.end(); 360981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSet::iterator it = floatingObjectSet.begin(); it != end; ++it) { 361081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* f = *it; 36118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatMap.add(f->m_renderer, f); 361281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch } 36138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else 361481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch deleteAllValues(floatingObjectSet); 361581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->clear(); 36168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3618545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // We should not process floats if the parent node is not a RenderBlock. Otherwise, we will add 3619545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // floats in an invalid context. This will cause a crash arising from a bad cast on the parent. 3620545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // See <rdar://problem/8049753>, where float property is applied on a text node in a SVG. 3621545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (!parent() || !parent()->isRenderBlock()) 3622545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return; 3623545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 36248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Attempt to locate a previous sibling with overhanging floats. We skip any elements that are 36258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // out of flow (like floating/positioned elements), and we also skip over any objects that may have shifted 36268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // to avoid floats. 36278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool parentHasFloats = false; 3628a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch RenderBlock* parentBlock = toRenderBlock(parent()); 3629635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderObject* prev = previousSibling(); 36308f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian while (prev && (prev->isFloatingOrPositioned() || !prev->isBox() || !prev->isRenderBlock() || toRenderBlock(prev)->avoidsFloats())) { 36318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (prev->isFloating()) 36328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project parentHasFloats = true; 36338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project prev = prev->previousSibling(); 36348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 36368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // First add in floats from the parent. 3637a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTopOffset = logicalTop(); 3638a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (parentHasFloats) 3639a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch addIntrudingFloats(parentBlock, parentBlock->logicalLeftOffsetForContent(), logicalTopOffset); 3640635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 3641a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalLeftOffset = 0; 36428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (prev) 3643a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTopOffset -= toRenderBox(prev)->logicalTop(); 3644a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch else { 3645a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch prev = parentBlock; 3646a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalLeftOffset += parentBlock->logicalLeftOffsetForContent(); 36478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 36498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Add overhanging floats from the previous RenderBlock, but only if it has a float that intrudes into our space. 3650635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (!prev || !prev->isRenderBlock()) 3651635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return; 3652635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 36538f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBlock* block = toRenderBlock(prev); 3654a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (block->m_floatingObjects && block->lowestFloatLogicalBottom() > logicalTopOffset) 3655a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch addIntrudingFloats(block, logicalLeftOffset, logicalTopOffset); 36568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 36578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) { 3658a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int changeLogicalTop = numeric_limits<int>::max(); 3659a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int changeLogicalBottom = numeric_limits<int>::min(); 36608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_floatingObjects) { 366181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 366281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator end = floatingObjectSet.end(); 366381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 366481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* f = *it; 36658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project FloatingObject* oldFloatingObject = floatMap.get(f->m_renderer); 3666a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalBottom = logicalBottomForFloat(f); 36678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (oldFloatingObject) { 3668a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int oldLogicalBottom = logicalBottomForFloat(oldFloatingObject); 3669a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (logicalWidthForFloat(f) != logicalWidthForFloat(oldFloatingObject) || logicalLeftForFloat(f) != logicalLeftForFloat(oldFloatingObject)) { 3670a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch changeLogicalTop = 0; 3671a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch changeLogicalBottom = max(changeLogicalBottom, max(logicalBottom, oldLogicalBottom)); 3672a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else if (logicalBottom != oldLogicalBottom) { 3673a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch changeLogicalTop = min(changeLogicalTop, min(logicalBottom, oldLogicalBottom)); 3674a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch changeLogicalBottom = max(changeLogicalBottom, max(logicalBottom, oldLogicalBottom)); 36758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 36778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatMap.remove(f->m_renderer); 367854cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block if (oldFloatingObject->m_originatingLine) { 367954cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block ASSERT(oldFloatingObject->m_originatingLine->renderer() == this); 368054cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block oldFloatingObject->m_originatingLine->markDirty(); 368154cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block } 36828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project delete oldFloatingObject; 36838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 3684a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch changeLogicalTop = 0; 3685a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch changeLogicalBottom = max(changeLogicalBottom, logicalBottom); 36868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 36908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RendererToFloatInfoMap::iterator end = floatMap.end(); 36918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RendererToFloatInfoMap::iterator it = floatMap.begin(); it != end; ++it) { 36928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project FloatingObject* floatingObject = (*it).second; 36938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!floatingObject->m_isDescendant) { 3694a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch changeLogicalTop = 0; 3695a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch changeLogicalBottom = max(changeLogicalBottom, logicalBottomForFloat(floatingObject)); 36968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project deleteAllValues(floatMap); 36998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3700a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch markLinesDirtyInBlockRange(changeLogicalTop, changeLogicalBottom); 37018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 37028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 37038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3704a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::addOverhangingFloats(RenderBlock* child, int logicalLeftOffset, int logicalTopOffset, bool makeChildPaintOtherFloats) 37058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 37068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Prevent floats from being added to the canvas by the root element, e.g., <html>. 3707a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (child->hasOverflowClip() || !child->containsFloats() || child->isRoot() || child->hasColumns() || child->isWritingModeRoot()) 37088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 37098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 37102daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch int childLogicalTop = child->logicalTop(); 3711a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int lowestFloatLogicalBottom = 0; 37128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3713231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Floats that will remain the child's responsibility to paint should factor into its 3714231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // overflow. 371581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator childEnd = child->m_floatingObjects->set().end(); 371681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator childIt = child->m_floatingObjects->set().begin(); childIt != childEnd; ++childIt) { 371781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *childIt; 37182daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch int logicalBottomForFloat = min(this->logicalBottomForFloat(r), numeric_limits<int>::max() - childLogicalTop); 37192daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch int logicalBottom = childLogicalTop + logicalBottomForFloat; 3720a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch lowestFloatLogicalBottom = max(lowestFloatLogicalBottom, logicalBottom); 37218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3722a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (logicalBottom > logicalHeight()) { 37238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the object is not in the list, we add it now. 37248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!containsFloat(r->m_renderer)) { 37252bde8e466a4451c7319e3a072d118917957d6554Steve Block int leftOffset = isHorizontalWritingMode() ? logicalLeftOffset : logicalTopOffset; 37262bde8e466a4451c7319e3a072d118917957d6554Steve Block int topOffset = isHorizontalWritingMode() ? logicalTopOffset : logicalLeftOffset; 37272fc2651226baac27029e38c9d6ef883fa32084dbSteve Block FloatingObject* floatingObj = new FloatingObject(r->type(), IntRect(r->x() - leftOffset, r->y() - topOffset, r->width(), r->height())); 37288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatingObj->m_renderer = r->m_renderer; 37298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 37308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The nearest enclosing layer always paints the float (so that zindex and stacking 37318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // behaves properly). We always want to propagate the desire to paint the float as 37328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // far out as we can, to the outermost block that overlaps the float, stopping only 37338f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // if we hit a self-painting layer boundary. 3734f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (r->m_renderer->enclosingFloatPaintingLayer() == enclosingFloatPaintingLayer()) 37358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project r->m_shouldPaint = false; 37368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 37378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatingObj->m_shouldPaint = false; 37388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3739f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch floatingObj->m_isDescendant = true; 3740f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 37418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We create the floating object list lazily. 374281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (!m_floatingObjects) 374381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects = adoptPtr(new FloatingObjects); 374481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 374581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->increaseObjectsCount(floatingObj->type()); 374681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->set().add(floatingObj); 37478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3748f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } else { 3749f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (makeChildPaintOtherFloats && !r->m_shouldPaint && !r->m_renderer->hasSelfPaintingLayer() && 3750f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch r->m_renderer->isDescendantOf(child) && r->m_renderer->enclosingFloatPaintingLayer() == child->enclosingFloatPaintingLayer()) { 3751f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // The float is not overhanging from this block, so if it is a descendant of the child, the child should 3752f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // paint it (the other case is that it is intruding into the child), unless it has its own layer or enclosing 3753f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // layer. 3754f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // If makeChildPaintOtherFloats is false, it means that the child must already know about all the floats 3755f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // it should paint. 3756f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch r->m_shouldPaint = true; 3757f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 3758f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 3759f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // Since the float doesn't overhang, it didn't get put into our list. We need to go ahead and add its overflow in to the 3760f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // child now. 3761f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (r->m_isDescendant) 37622fc2651226baac27029e38c9d6ef883fa32084dbSteve Block child->addOverflowFromChild(r->m_renderer, IntSize(xPositionForFloatIncludingMargin(r), yPositionForFloatIncludingMargin(r))); 3763f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 37648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3765a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return lowestFloatLogicalBottom; 37668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 37678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 37684fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Blockbool RenderBlock::hasOverhangingFloat(RenderBox* renderer) 37694fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block{ 37704fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block if (!m_floatingObjects || hasColumns() || !parent()) 37714fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block return false; 37724fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block 37734fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 37744fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block FloatingObjectSetIterator it = floatingObjectSet.find<RenderBox*, FloatingObjectHashTranslator>(renderer); 37754fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block if (it == floatingObjectSet.end()) 37764fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block return false; 37774fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block 37784fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block return logicalBottomForFloat(*it) > logicalHeight(); 37794fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block} 37804fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block 3781a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::addIntrudingFloats(RenderBlock* prev, int logicalLeftOffset, int logicalTopOffset) 37828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 37838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the parent or previous sibling doesn't have any floats to add, don't bother. 37848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!prev->m_floatingObjects) 37858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 37868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 37872bde8e466a4451c7319e3a072d118917957d6554Steve Block logicalLeftOffset += (isHorizontalWritingMode() ? marginLeft() : marginTop()); 378881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 378981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& prevSet = prev->m_floatingObjects->set(); 379081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator prevEnd = prevSet.end(); 379181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator prevIt = prevSet.begin(); prevIt != prevEnd; ++prevIt) { 379281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *prevIt; 3793a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (logicalBottomForFloat(r) > logicalTopOffset) { 379481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (!m_floatingObjects || !m_floatingObjects->set().contains(r)) { 37952bde8e466a4451c7319e3a072d118917957d6554Steve Block int leftOffset = isHorizontalWritingMode() ? logicalLeftOffset : logicalTopOffset; 37962bde8e466a4451c7319e3a072d118917957d6554Steve Block int topOffset = isHorizontalWritingMode() ? logicalTopOffset : logicalLeftOffset; 3797a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 37982fc2651226baac27029e38c9d6ef883fa32084dbSteve Block FloatingObject* floatingObj = new FloatingObject(r->type(), IntRect(r->x() - leftOffset, r->y() - topOffset, r->width(), r->height())); 3799a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 38008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Applying the child's margin makes no sense in the case where the child was passed in. 3801a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // since this margin was added already through the modification of the |logicalLeftOffset| variable 3802a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // above. |logicalLeftOffset| will equal the margin in this case, so it's already been taken 3803a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // into account. Only apply this code if prev is the parent, since otherwise the left margin 38048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // will get applied twice. 38056b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (prev != parent()) { 38062bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 38072fc2651226baac27029e38c9d6ef883fa32084dbSteve Block floatingObj->setX(floatingObj->x() + prev->marginLeft()); 38086b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner else 38092fc2651226baac27029e38c9d6ef883fa32084dbSteve Block floatingObj->setY(floatingObj->y() + prev->marginTop()); 38106b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner } 3811a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 38128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatingObj->m_shouldPaint = false; // We are not in the direct inheritance chain for this float. We will never paint it. 38138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatingObj->m_renderer = r->m_renderer; 38148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 38158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We create the floating object list lazily. 381681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (!m_floatingObjects) 381781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects = adoptPtr(new FloatingObjects); 381881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->increaseObjectsCount(floatingObj->type()); 381981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->set().add(floatingObj); 38208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 38218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 38228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 38238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 38248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 38258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::avoidsFloats() const 38268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 38278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Floats can't intrude into our box if we have a non-auto column count or width. 38288f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return RenderBox::avoidsFloats() || !style()->hasAutoColumnCount() || !style()->hasAutoColumnWidth(); 38298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 38308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 383181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochbool RenderBlock::containsFloat(RenderBox* renderer) 38328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 383381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch return m_floatingObjects && m_floatingObjects->set().contains<RenderBox*, FloatingObjectHashTranslator>(renderer); 38348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 38358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3836635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid RenderBlock::markAllDescendantsWithFloatsForLayout(RenderBox* floatToRemove, bool inLayout) 38378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 383868513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!m_everHadLayout) 383968513a70bcd92384395513322f1b801e7bf9c729Steve Block return; 384068513a70bcd92384395513322f1b801e7bf9c729Steve Block 3841635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project setChildNeedsLayout(true, !inLayout); 38428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 38438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (floatToRemove) 38448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project removeFloatingObject(floatToRemove); 38458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 38468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Iterate over our children and mark them as needed. 38478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!childrenInline()) { 38488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderObject* child = firstChild(); child; child = child->nextSibling()) { 38498f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if ((!floatToRemove && child->isFloatingOrPositioned()) || !child->isRenderBlock()) 38508f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian continue; 38518f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBlock* childBlock = toRenderBlock(child); 38528f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if ((floatToRemove ? childBlock->containsFloat(floatToRemove) : childBlock->containsFloats()) || childBlock->shrinkToAvoidFloats()) 38538f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian childBlock->markAllDescendantsWithFloatsForLayout(floatToRemove, inLayout); 38548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 38558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 38568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 38578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 385854cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Blockvoid RenderBlock::markSiblingsWithFloatsForLayout() 385954cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block{ 386054cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 386154cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block FloatingObjectSetIterator end = floatingObjectSet.end(); 386254cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 386354cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block if (logicalBottomForFloat(*it) > logicalHeight()) { 386454cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block RenderBox* floatingBox = (*it)->renderer(); 386554cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block 386654cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block RenderObject* next = nextSibling(); 386754cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block while (next) { 386854cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block if (next->isRenderBlock() && !next->isFloatingOrPositioned() && !toRenderBlock(next)->avoidsFloats()) { 386954cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block RenderBlock* nextBlock = toRenderBlock(next); 387054cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block if (nextBlock->containsFloat(floatingBox)) 387154cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block nextBlock->markAllDescendantsWithFloatsForLayout(floatingBox); 387254cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block else 387354cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block break; 387454cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block } 387554cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block 387654cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block next = next->nextSibling(); 387754cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block } 387854cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block } 387954cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block } 388054cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block} 388154cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block 38828f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianint RenderBlock::getClearDelta(RenderBox* child, int yPos) 38838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 38848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // There is no need to compute clearance if we have no floats. 38858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!containsFloats()) 38868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 38878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 38888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // At least one float is present. We need to perform the clearance computation. 38898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool clearSet = child->style()->clear() != CNONE; 38908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int bottom = 0; 38918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project switch (child->style()->clear()) { 38928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project case CNONE: 38938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 38948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project case CLEFT: 3895a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bottom = lowestFloatLogicalBottom(FloatingObject::FloatLeft); 38968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 38978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project case CRIGHT: 3898a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bottom = lowestFloatLogicalBottom(FloatingObject::FloatRight); 38998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 39008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project case CBOTH: 3901a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bottom = lowestFloatLogicalBottom(); 39028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 39038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 39048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 39058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We also clear floats if we are too big to sit on the same line as a float (and wish to avoid floats by default). 39068f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int result = clearSet ? max(0, bottom - yPos) : 0; 3907231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (!result && child->avoidsFloats()) { 3908d0825bca7fe65beaee391d30da42e937db621564Steve Block int y = yPos; 3909d0825bca7fe65beaee391d30da42e937db621564Steve Block while (true) { 3910bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int widthAtY = availableLogicalWidthForLine(y, false); 3911e14391e94c850b8bd03680c23b38978db68687a8John Reck if (widthAtY == availableLogicalWidth()) 3912d0825bca7fe65beaee391d30da42e937db621564Steve Block return y - yPos; 3913d0825bca7fe65beaee391d30da42e937db621564Steve Block 3914d0825bca7fe65beaee391d30da42e937db621564Steve Block int oldChildY = child->y(); 3915d0825bca7fe65beaee391d30da42e937db621564Steve Block int oldChildWidth = child->width(); 3916d0825bca7fe65beaee391d30da42e937db621564Steve Block child->setY(y); 3917bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen child->computeLogicalWidth(); 3918d0825bca7fe65beaee391d30da42e937db621564Steve Block int childWidthAtY = child->width(); 3919d0825bca7fe65beaee391d30da42e937db621564Steve Block child->setY(oldChildY); 3920d0825bca7fe65beaee391d30da42e937db621564Steve Block child->setWidth(oldChildWidth); 3921d0825bca7fe65beaee391d30da42e937db621564Steve Block 3922d0825bca7fe65beaee391d30da42e937db621564Steve Block if (childWidthAtY <= widthAtY) 3923d0825bca7fe65beaee391d30da42e937db621564Steve Block return y - yPos; 3924d0825bca7fe65beaee391d30da42e937db621564Steve Block 3925a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch y = nextFloatLogicalBottomBelow(y); 3926d0825bca7fe65beaee391d30da42e937db621564Steve Block ASSERT(y >= yPos); 3927d0825bca7fe65beaee391d30da42e937db621564Steve Block if (y < yPos) 3928d0825bca7fe65beaee391d30da42e937db621564Steve Block break; 3929d0825bca7fe65beaee391d30da42e937db621564Steve Block } 3930d0825bca7fe65beaee391d30da42e937db621564Steve Block ASSERT_NOT_REACHED(); 3931231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 39328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 39338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 39348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 39350bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdochbool RenderBlock::isPointInOverflowControl(HitTestResult& result, int _x, int _y, int _tx, int _ty) 39368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 39378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!scrollsOverflow()) 39388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 39398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 39400bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch return layer()->hitTestOverflowControls(result, IntPoint(_x - _tx, _y - _ty)); 39418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 39428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 39438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, int _x, int _y, int _tx, int _ty, HitTestAction hitTestAction) 39448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 3945635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project int tx = _tx + x(); 3946635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project int ty = _ty + y(); 39478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3948635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (!isRenderView()) { 39498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Check if we need to do anything at all. 3950f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch IntRect overflowBox = visualOverflowRect(); 39518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project overflowBox.move(tx, ty); 3952a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!overflowBox.intersects(result.rectForPoint(_x, _y))) 39538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 39548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 39558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 39568f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if ((hitTestAction == HitTestBlockBackground || hitTestAction == HitTestChildBlockBackground) && isPointInOverflowControl(result, _x, _y, tx, ty)) { 39578f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian updateHitTestResult(result, IntPoint(_x - tx, _y - ty)); 3958ad3386af2204fbbc9033a6dcced2f9b0adcd6f10Steve Block // FIXME: isPointInOverflowControl() doesn't handle rect-based tests yet. 3959db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Block if (!result.addNodeToRectBasedTestResult(node(), _x, _y)) 3960db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Block return true; 39618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 39628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 39638f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // If we have clipping, then we can't have any spillout. 39648f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian bool useOverflowClip = hasOverflowClip() && !hasSelfPaintingLayer(); 39658f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian bool useClip = (hasControlClip() || useOverflowClip); 3966a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch IntRect hitTestArea(result.rectForPoint(_x, _y)); 39672bde8e466a4451c7319e3a072d118917957d6554Steve Block bool checkChildren = !useClip || (hasControlClip() ? controlClipRect(tx, ty).intersects(hitTestArea) : overflowClipRect(tx, ty, IncludeOverlayScrollbarSize).intersects(hitTestArea)); 39688f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (checkChildren) { 39698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Hit test descendants first. 39708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int scrolledX = tx; 39718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int scrolledY = ty; 3972dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block if (hasOverflowClip()) { 3973dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block IntSize offset = layer()->scrolledContentOffset(); 3974dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block scrolledX -= offset.width(); 3975dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block scrolledY -= offset.height(); 3976dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block } 39778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 39788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Hit test contents if we don't have columns. 39795abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick if (!hasColumns()) { 39805abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick if (hitTestContents(request, result, _x, _y, scrolledX, scrolledY, hitTestAction)) { 39815abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick updateHitTestResult(result, IntPoint(_x - tx, _y - ty)); 39825abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return true; 39835abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick } 39845abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick if (hitTestAction == HitTestFloat && hitTestFloats(request, result, _x, _y, scrolledX, scrolledY)) 39855abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return true; 39865abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick } else if (hitTestColumns(request, result, _x, _y, scrolledX, scrolledY, hitTestAction)) { 39876c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen updateHitTestResult(result, IntPoint(_x - tx, _y - ty)); 39888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 39896c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen } 39908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 39918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3992635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // Now hit test our background 3993635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (hitTestAction == HitTestBlockBackground || hitTestAction == HitTestChildBlockBackground) { 3994635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project IntRect boundsRect(tx, ty, width(), height()); 3995a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (visibleToHitTesting() && boundsRect.intersects(result.rectForPoint(_x, _y))) { 39966b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner updateHitTestResult(result, flipForWritingMode(IntPoint(_x - tx, _y - ty))); 3997db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Block if (!result.addNodeToRectBasedTestResult(node(), _x, _y, boundsRect)) 3998db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Block return true; 39998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 40008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 40018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 40028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 40038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 40048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 40055abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrickbool RenderBlock::hitTestFloats(const HitTestRequest& request, HitTestResult& result, int x, int y, int tx, int ty) 40065abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick{ 40075abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick if (!m_floatingObjects) 40085abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return false; 40095abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick 40105abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick if (isRenderView()) { 40115abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick tx += toRenderView(this)->frameView()->scrollX(); 40125abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick ty += toRenderView(this)->frameView()->scrollY(); 40135abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick } 40145abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick 401581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 401681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator begin = floatingObjectSet.begin(); 401781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator it = floatingObjectSet.end(); it != begin;) { 401881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch --it; 401981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* floatingObject = *it; 40205abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick if (floatingObject->m_shouldPaint && !floatingObject->m_renderer->hasSelfPaintingLayer()) { 40212fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int xOffset = xPositionForFloatIncludingMargin(floatingObject) - floatingObject->m_renderer->x(); 40222fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int yOffset = yPositionForFloatIncludingMargin(floatingObject) - floatingObject->m_renderer->y(); 40232fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntPoint childPoint = flipFloatForWritingMode(floatingObject, IntPoint(tx + xOffset, ty + yOffset)); 402428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (floatingObject->m_renderer->hitTest(request, result, IntPoint(x, y), childPoint.x(), childPoint.y())) { 402528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu updateHitTestResult(result, IntPoint(x - childPoint.x(), y - childPoint.y())); 40265abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return true; 40275abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick } 40285abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick } 40295abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick } 40305abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick 40315abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return false; 40325abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick} 40335abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick 40348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::hitTestColumns(const HitTestRequest& request, HitTestResult& result, int x, int y, int tx, int ty, HitTestAction hitTestAction) 40358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 40368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We need to do multiple passes, breaking up our hit testing into strips. 40375abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick ColumnInfo* colInfo = columnInfo(); 403868513a70bcd92384395513322f1b801e7bf9c729Steve Block int colCount = columnCount(colInfo); 40396c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen if (!colCount) 40406c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen return false; 40412fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int logicalLeft = logicalLeftOffsetForContent(); 40422fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int currLogicalTopOffset = 0; 4043e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block int i; 40442bde8e466a4451c7319e3a072d118917957d6554Steve Block bool isHorizontal = isHorizontalWritingMode(); 40452fc2651226baac27029e38c9d6ef883fa32084dbSteve Block for (i = 0; i < colCount; i++) { 40462fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntRect colRect = columnRectAt(colInfo, i); 40472fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int blockDelta = (isHorizontal ? colRect.height() : colRect.width()); 40482fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (style()->isFlippedBlocksWritingMode()) 40492fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalTopOffset += blockDelta; 40502fc2651226baac27029e38c9d6ef883fa32084dbSteve Block else 40512fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalTopOffset -= blockDelta; 40522fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 4053e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block for (i = colCount - 1; i >= 0; i--) { 405468513a70bcd92384395513322f1b801e7bf9c729Steve Block IntRect colRect = columnRectAt(colInfo, i); 40552fc2651226baac27029e38c9d6ef883fa32084dbSteve Block flipForWritingMode(colRect); 40562fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int currLogicalLeftOffset = (isHorizontal ? colRect.x() : colRect.y()) - logicalLeft; 40572fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int blockDelta = (isHorizontal ? colRect.height() : colRect.width()); 40582fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (style()->isFlippedBlocksWritingMode()) 40592fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalTopOffset -= blockDelta; 40602fc2651226baac27029e38c9d6ef883fa32084dbSteve Block else 40612fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalTopOffset += blockDelta; 40628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project colRect.move(tx, ty); 40638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4064a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (colRect.intersects(result.rectForPoint(x, y))) { 40658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The point is inside this column. 40668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Adjust tx and ty to change where we hit test. 40678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 40682fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntSize offset = isHorizontal ? IntSize(currLogicalLeftOffset, currLogicalTopOffset) : IntSize(currLogicalTopOffset, currLogicalLeftOffset); 40692fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int finalX = tx + offset.width(); 40702fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int finalY = ty + offset.height(); 4071a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (result.isRectBasedTest() && !colRect.contains(result.rectForPoint(x, y))) 4072db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Block hitTestContents(request, result, x, y, finalX, finalY, hitTestAction); 4073db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Block else 40745abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return hitTestContents(request, result, x, y, finalX, finalY, hitTestAction) || (hitTestAction == HitTestFloat && hitTestFloats(request, result, x, y, finalX, finalY)); 40758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 40768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 40778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 40788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 40798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 40808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 40818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::hitTestContents(const HitTestRequest& request, HitTestResult& result, int x, int y, int tx, int ty, HitTestAction hitTestAction) 40828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 40838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline() && !isTable()) { 40848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We have to hit-test our line boxes. 40856c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen if (m_lineBoxes.hitTest(this, request, result, x, y, tx, ty, hitTestAction)) 40868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 40878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 40888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Hit test our children. 40898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HitTestAction childHitTest = hitTestAction; 40908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (hitTestAction == HitTestChildBlockBackgrounds) 40918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childHitTest = HitTestChildBlockBackground; 40928f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian for (RenderBox* child = lastChildBox(); child; child = child->previousSiblingBox()) { 409328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntPoint childPoint = flipForWritingMode(child, IntPoint(tx, ty), ParentToChildFlippingAdjustment); 409428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (!child->hasSelfPaintingLayer() && !child->isFloating() && child->nodeAtPoint(request, result, x, y, childPoint.x(), childPoint.y(), childHitTest)) 40958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 40968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 40978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 40988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 40998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 41008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 41018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectPosition RenderBlock::positionForBox(InlineBox *box, bool start) const 41038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 41048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!box) 41058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return Position(); 41068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41078f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!box->renderer()->node()) 41088f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return Position(node(), start ? caretMinOffset() : caretMaxOffset()); 41098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!box->isInlineTextBox()) 41118f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return Position(box->renderer()->node(), start ? box->renderer()->caretMinOffset() : box->renderer()->caretMaxOffset()); 41128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project InlineTextBox *textBox = static_cast<InlineTextBox *>(box); 41148f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return Position(box->renderer()->node(), start ? textBox->start() : textBox->start() + textBox->len()); 41158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 41168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41178f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian// FIXME: This function should go on RenderObject as an instance method. Then 41185f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian// all cases in which positionForPoint recurs could call this instead to 41198f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian// prevent crossing editable boundaries. This would require many tests. 41206b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brennerstatic VisiblePosition positionForPointRespectingEditingBoundaries(RenderBlock* parent, RenderBox* child, const IntPoint& pointInParentCoordinates) 41218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 41226b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner // FIXME: This is wrong if the child's writing-mode is different from the parent's. 41235f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian IntPoint pointInChildCoordinates(pointInParentCoordinates - child->location()); 41248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41258f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // If this is an anonymous renderer, we just recur normally 41268f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian Node* childNode = child->node(); 41278f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!childNode) 41285f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return child->positionForPoint(pointInChildCoordinates); 41298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41308f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // Otherwise, first make sure that the editability of the parent and child agree. 41318f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // If they don't agree, then we return a visible position just before or after the child 41328f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderObject* ancestor = parent; 41338f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian while (ancestor && !ancestor->node()) 41348f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian ancestor = ancestor->parent(); 41358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41368f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // If we can't find an ancestor to check editability on, or editability is unchanged, we recur like normal 41372bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!ancestor || ancestor->node()->rendererIsEditable() == childNode->rendererIsEditable()) 41385f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return child->positionForPoint(pointInChildCoordinates); 41398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41406b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner // Otherwise return before or after the child, depending on if the click was to the logical left or logical right of the child 41416b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner int childMiddle = parent->logicalWidthForChild(child) / 2; 41422bde8e466a4451c7319e3a072d118917957d6554Steve Block int logicalLeft = parent->isHorizontalWritingMode() ? pointInChildCoordinates.x() : pointInChildCoordinates.y(); 41436b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (logicalLeft < childMiddle) 41448f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return ancestor->createVisiblePosition(childNode->nodeIndex(), DOWNSTREAM); 41458f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return ancestor->createVisiblePosition(childNode->nodeIndex() + 1, UPSTREAM); 41468f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 41478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41486b70adc33054f8aee8c54d0f460458a9df11b8a5Russell BrennerVisiblePosition RenderBlock::positionForPointWithInlineChildren(const IntPoint& pointInLogicalContents) 41498f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 41505f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian ASSERT(childrenInline()); 41518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41525f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (!firstRootBox()) 41535f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return createVisiblePosition(0, DOWNSTREAM); 41548f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 41558f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // look for the closest line box in the root box which is at the passed-in y coordinate 41565f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian InlineBox* closestBox = 0; 41575f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian RootInlineBox* firstRootBoxWithChildren = 0; 41585f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian RootInlineBox* lastRootBoxWithChildren = 0; 41595f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian for (RootInlineBox* root = firstRootBox(); root; root = root->nextRootBox()) { 4160643ca7872b450ea4efacab6188849e5aac2ba161Steve Block if (!root->firstLeafChild()) 41615f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian continue; 41625f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (!firstRootBoxWithChildren) 41635f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian firstRootBoxWithChildren = root; 41645f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian lastRootBoxWithChildren = root; 41655f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 41668f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // check if this root line box is located at this y coordinate 41676b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (pointInLogicalContents.y() < root->selectionBottom()) { 41686b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner closestBox = root->closestLeafChildForLogicalLeftPosition(pointInLogicalContents.x()); 41698f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (closestBox) 41708f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian break; 41718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 41728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 41738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4174545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch bool moveCaretToBoundary = document()->frame()->editor()->behavior().shouldMoveCaretToHorizontalBoundaryWhenPastTopOrBottom(); 41755f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 4176545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (!moveCaretToBoundary && !closestBox && lastRootBoxWithChildren) { 41775f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // y coordinate is below last root line box, pretend we hit it 41786b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner closestBox = lastRootBoxWithChildren->closestLeafChildForLogicalLeftPosition(pointInLogicalContents.x()); 41795f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 41808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41818f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (closestBox) { 41826b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (moveCaretToBoundary && pointInLogicalContents.y() < firstRootBoxWithChildren->selectionTop()) { 41835f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // y coordinate is above first root line box, so return the start of the first 41845f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return VisiblePosition(positionForBox(firstRootBoxWithChildren->firstLeafChild(), true), DOWNSTREAM); 41855f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 41865f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 41876b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner // pass the box a top position that is inside it 41886b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner IntPoint point(pointInLogicalContents.x(), closestBox->logicalTop()); 41892bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!isHorizontalWritingMode()) 41906b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner point = point.transposedPoint(); 41916b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (closestBox->renderer()->isReplaced()) 41926b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner return positionForPointRespectingEditingBoundaries(this, toRenderBox(closestBox->renderer()), point); 41936b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner return closestBox->renderer()->positionForPoint(point); 41945f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 41955f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 41965f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (lastRootBoxWithChildren) { 41975f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // We hit this case for Mac behavior when the Y coordinate is below the last box. 4198545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch ASSERT(moveCaretToBoundary); 41992bde8e466a4451c7319e3a072d118917957d6554Steve Block InlineBox* logicallyLastBox; 42002bde8e466a4451c7319e3a072d118917957d6554Steve Block if (lastRootBoxWithChildren->getLogicalEndBoxWithNode(logicallyLastBox)) 42012bde8e466a4451c7319e3a072d118917957d6554Steve Block return VisiblePosition(positionForBox(logicallyLastBox, false), DOWNSTREAM); 42028f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 42038f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 42045f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // Can't reach this. We have a root line box, but it has no kids. 42058f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // FIXME: This should ASSERT_NOT_REACHED(), but clicking on placeholder text 42065f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // seems to hit this code path. 42075f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return createVisiblePosition(0, DOWNSTREAM); 42085f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian} 42095f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 42105f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianstatic inline bool isChildHitTestCandidate(RenderBox* box) 42115f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian{ 42125f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return box->height() && box->style()->visibility() == VISIBLE && !box->isFloatingOrPositioned(); 42138f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 42148f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 42158f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianVisiblePosition RenderBlock::positionForPoint(const IntPoint& point) 42168f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 42178f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (isTable()) 42188f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return RenderBox::positionForPoint(point); 42198f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 42208f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (isReplaced()) { 42216b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner // FIXME: This seems wrong when the object's writing-mode doesn't match the line's writing-mode. 42222bde8e466a4451c7319e3a072d118917957d6554Steve Block int pointLogicalLeft = isHorizontalWritingMode() ? point.x() : point.y(); 42232bde8e466a4451c7319e3a072d118917957d6554Steve Block int pointLogicalTop = isHorizontalWritingMode() ? point.y() : point.x(); 42246b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner 42256b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (pointLogicalTop < 0 || (pointLogicalTop < logicalHeight() && pointLogicalLeft < 0)) 42268f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return createVisiblePosition(caretMinOffset(), DOWNSTREAM); 42276b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (pointLogicalTop >= logicalHeight() || (pointLogicalTop >= 0 && pointLogicalLeft >= logicalWidth())) 42288f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return createVisiblePosition(caretMaxOffset(), DOWNSTREAM); 42298f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 42308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 42315f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian int contentsX = point.x(); 42325f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian int contentsY = point.y(); 42335f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian offsetForContents(contentsX, contentsY); 42345f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian IntPoint pointInContents(contentsX, contentsY); 42356b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner IntPoint pointInLogicalContents(pointInContents); 42362bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!isHorizontalWritingMode()) 42376b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner pointInLogicalContents = pointInLogicalContents.transposedPoint(); 42388f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 42395f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (childrenInline()) 42406b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner return positionForPointWithInlineChildren(pointInLogicalContents); 42418f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 42426b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (lastChildBox() && pointInContents.y() > lastChildBox()->logicalTop()) { 42435f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian for (RenderBox* childBox = lastChildBox(); childBox; childBox = childBox->previousSiblingBox()) { 42445f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (isChildHitTestCandidate(childBox)) 42455f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return positionForPointRespectingEditingBoundaries(this, childBox, pointInContents); 42465f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 42475f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } else { 42485f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian for (RenderBox* childBox = firstChildBox(); childBox; childBox = childBox->nextSiblingBox()) { 42495f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // We hit child if our click is above the bottom of its padding box (like IE6/7 and FF3). 42506b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (isChildHitTestCandidate(childBox) && pointInContents.y() < childBox->logicalBottom()) 42515f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return positionForPointRespectingEditingBoundaries(this, childBox, pointInContents); 42525f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 42538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 42548f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 42555f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // We only get here if there are no hit test candidate children below the click. 42568f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return RenderBox::positionForPoint(point); 42578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 42588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4259635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid RenderBlock::offsetForContents(int& tx, int& ty) const 4260635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project{ 4261dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block IntPoint contentsPoint(tx, ty); 4262dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block 4263635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (hasOverflowClip()) 4264dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block contentsPoint += layer()->scrolledContentOffset(); 4265635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 4266dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block if (hasColumns()) 4267635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project adjustPointToColumnContents(contentsPoint); 4268dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block 4269dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block tx = contentsPoint.x(); 4270dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block ty = contentsPoint.y(); 4271635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} 4272635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 427368513a70bcd92384395513322f1b801e7bf9c729Steve Blockint RenderBlock::availableLogicalWidth() const 427468513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 427568513a70bcd92384395513322f1b801e7bf9c729Steve Block // If we have multiple columns, then the available logical width is reduced to our column width. 427668513a70bcd92384395513322f1b801e7bf9c729Steve Block if (hasColumns()) 427768513a70bcd92384395513322f1b801e7bf9c729Steve Block return desiredColumnWidth(); 427868513a70bcd92384395513322f1b801e7bf9c729Steve Block return RenderBox::availableLogicalWidth(); 42798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 42808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 42818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectint RenderBlock::columnGap() const 42828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 42838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->hasNormalColumnGap()) 42848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return style()->fontDescription().computedPixelSize(); // "1em" is recommended as the normal gap setting. Matches <p> margins. 42858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return static_cast<int>(style()->columnGap()); 42868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 42878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 42888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::calcColumnWidth() 42898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 42908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Calculate our column width and column count. 42918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project unsigned desiredColumnCount = 1; 42922fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int desiredColumnWidth = contentLogicalWidth(); 42938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 42948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // For now, we don't support multi-column layouts when printing, since we have to do a lot of work for proper pagination. 4295f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick if (document()->paginated() || (style()->hasAutoColumnCount() && style()->hasAutoColumnWidth())) { 42968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project setDesiredColumnCountAndWidth(desiredColumnCount, desiredColumnWidth); 42978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 42988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 42998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 43008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int availWidth = desiredColumnWidth; 43018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int colGap = columnGap(); 43028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int colWidth = max(1, static_cast<int>(style()->columnWidth())); 43038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int colCount = max(1, static_cast<int>(style()->columnCount())); 43048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 43052daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch if (style()->hasAutoColumnWidth() && !style()->hasAutoColumnCount()) { 43062daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch desiredColumnCount = colCount; 43072daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch desiredColumnWidth = max<int>(0, (availWidth - ((desiredColumnCount - 1) * colGap)) / desiredColumnCount); 43082daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch } else if (!style()->hasAutoColumnWidth() && style()->hasAutoColumnCount()) { 43092daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch desiredColumnCount = max<int>(1, (float)(availWidth + colGap) / (colWidth + colGap)); 43102daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch desiredColumnWidth = ((availWidth + colGap) / desiredColumnCount) - colGap; 43118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 43122daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch desiredColumnCount = max(min<int>(colCount, (float)(availWidth + colGap) / (colWidth + colGap)), 1); 43132daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch desiredColumnWidth = ((availWidth + colGap) / desiredColumnCount) - colGap; 43148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 43158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project setDesiredColumnCountAndWidth(desiredColumnCount, desiredColumnWidth); 43168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 43178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 43188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::setDesiredColumnCountAndWidth(int count, int width) 43198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 43205af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke bool destroyColumns = !firstChild() 43215af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke || (count == 1 && style()->hasAutoColumnWidth()) 43225af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke || firstChild()->isAnonymousColumnsBlock() 432368513a70bcd92384395513322f1b801e7bf9c729Steve Block || firstChild()->isAnonymousColumnSpanBlock(); 43245af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (destroyColumns) { 43258f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (hasColumns()) { 43268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project delete gColumnInfoMap->take(this); 43278f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian setHasColumns(false); 43288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 43298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 43308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ColumnInfo* info; 43318f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (hasColumns()) 43328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project info = gColumnInfoMap->get(this); 43338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 43348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!gColumnInfoMap) 43358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project gColumnInfoMap = new ColumnInfoMap; 43368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project info = new ColumnInfo; 43378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project gColumnInfoMap->add(this, info); 43388f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian setHasColumns(true); 43398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 43405abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick info->setDesiredColumnCount(count); 43415abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick info->setDesiredColumnWidth(width); 43428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 43438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 43448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 43458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectint RenderBlock::desiredColumnWidth() const 43468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 43478f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!hasColumns()) 43482fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return contentLogicalWidth(); 43495abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return gColumnInfoMap->get(this)->desiredColumnWidth(); 43508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 43518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 43528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectunsigned RenderBlock::desiredColumnCount() const 43538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 43548f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!hasColumns()) 43558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 1; 43565abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return gColumnInfoMap->get(this)->desiredColumnCount(); 43578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 43588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 43595abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain MerrickColumnInfo* RenderBlock::columnInfo() const 43608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 43618f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!hasColumns()) 43628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 43635abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return gColumnInfoMap->get(this); 43648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 43658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 436668513a70bcd92384395513322f1b801e7bf9c729Steve Blockunsigned RenderBlock::columnCount(ColumnInfo* colInfo) const 43678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 436868513a70bcd92384395513322f1b801e7bf9c729Steve Block ASSERT(hasColumns() && gColumnInfoMap->get(this) == colInfo); 436968513a70bcd92384395513322f1b801e7bf9c729Steve Block return colInfo->columnCount(); 437068513a70bcd92384395513322f1b801e7bf9c729Steve Block} 43718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 437268513a70bcd92384395513322f1b801e7bf9c729Steve BlockIntRect RenderBlock::columnRectAt(ColumnInfo* colInfo, unsigned index) const 437368513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 437468513a70bcd92384395513322f1b801e7bf9c729Steve Block ASSERT(hasColumns() && gColumnInfoMap->get(this) == colInfo); 43758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 437668513a70bcd92384395513322f1b801e7bf9c729Steve Block // Compute the appropriate rect based off our information. 43772fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int colLogicalWidth = colInfo->desiredColumnWidth(); 43782fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int colLogicalHeight = colInfo->columnHeight(); 43792fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int colLogicalTop = borderBefore() + paddingBefore(); 43808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int colGap = columnGap(); 43812fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int colLogicalLeft = style()->isLeftToRightDirection() ? 43822fc2651226baac27029e38c9d6ef883fa32084dbSteve Block logicalLeftOffsetForContent() + (index * (colLogicalWidth + colGap)) 43832fc2651226baac27029e38c9d6ef883fa32084dbSteve Block : logicalLeftOffsetForContent() + contentLogicalWidth() - colLogicalWidth - (index * (colLogicalWidth + colGap)); 43842fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntRect rect(colLogicalLeft, colLogicalTop, colLogicalWidth, colLogicalHeight); 43852bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 43862fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return IntRect(colLogicalLeft, colLogicalTop, colLogicalWidth, colLogicalHeight); 43872fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return IntRect(colLogicalTop, colLogicalLeft, colLogicalHeight, colLogicalWidth); 438868513a70bcd92384395513322f1b801e7bf9c729Steve Block} 43898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4390f05b935882198ccf7d81675736e3aeb089c5113aBen Murdochbool RenderBlock::layoutColumns(bool hasSpecifiedPageLogicalHeight, int pageLogicalHeight, LayoutStateMaintainer& statePusher) 439168513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 4392f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!hasColumns()) 4393f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch return false; 4394f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 4395f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // FIXME: We don't balance properly at all in the presence of forced page breaks. We need to understand what 4396f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // the distance between forced page breaks is so that we can avoid making the minimum column height too tall. 4397f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch ColumnInfo* colInfo = columnInfo(); 4398f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int desiredColumnCount = colInfo->desiredColumnCount(); 4399f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!hasSpecifiedPageLogicalHeight) { 4400f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int columnHeight = pageLogicalHeight; 4401f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int minColumnCount = colInfo->forcedBreaks() + 1; 4402f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (minColumnCount >= desiredColumnCount) { 4403f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // The forced page breaks are in control of the balancing. Just set the column height to the 4404f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // maximum page break distance. 4405f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!pageLogicalHeight) { 4406f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int distanceBetweenBreaks = max(colInfo->maximumDistanceBetweenForcedBreaks(), 44072fc2651226baac27029e38c9d6ef883fa32084dbSteve Block view()->layoutState()->pageLogicalOffset(borderBefore() + paddingBefore() + contentLogicalHeight()) - colInfo->forcedBreakOffset()); 4408f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch columnHeight = max(colInfo->minimumColumnHeight(), distanceBetweenBreaks); 440968513a70bcd92384395513322f1b801e7bf9c729Steve Block } 44102fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } else if (contentLogicalHeight() > pageLogicalHeight * desiredColumnCount) { 4411f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // Now that we know the intrinsic height of the columns, we have to rebalance them. 44122fc2651226baac27029e38c9d6ef883fa32084dbSteve Block columnHeight = max(colInfo->minimumColumnHeight(), (int)ceilf((float)contentLogicalHeight() / desiredColumnCount)); 4413f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 44148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4415f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (columnHeight && columnHeight != pageLogicalHeight) { 4416f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch statePusher.pop(); 4417f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch m_everHadLayout = true; 4418f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch layoutBlock(false, columnHeight); 4419f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch return true; 44208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 4421f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 4422f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 4423f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (pageLogicalHeight) 44242fc2651226baac27029e38c9d6ef883fa32084dbSteve Block colInfo->setColumnCountAndHeight(ceilf((float)contentLogicalHeight() / pageLogicalHeight), pageLogicalHeight); 4425f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 4426f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (columnCount(colInfo)) { 44272fc2651226baac27029e38c9d6ef883fa32084dbSteve Block setLogicalHeight(borderBefore() + paddingBefore() + colInfo->columnHeight() + borderAfter() + paddingAfter() + scrollbarLogicalHeight()); 4428f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch m_overflow.clear(); 4429643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 44308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 443168513a70bcd92384395513322f1b801e7bf9c729Steve Block return false; 44328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 44338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 44348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::adjustPointToColumnContents(IntPoint& point) const 44358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 44368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Just bail if we have no columns. 44378f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!hasColumns()) 44388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 44398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 44405abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick ColumnInfo* colInfo = columnInfo(); 444168513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!columnCount(colInfo)) 44425abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return; 44438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 44448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Determine which columns we intersect. 44458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int colGap = columnGap(); 44462fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int halfColGap = colGap / 2; 444768513a70bcd92384395513322f1b801e7bf9c729Steve Block IntPoint columnPoint(columnRectAt(colInfo, 0).location()); 44482fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int logicalOffset = 0; 44495abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick for (unsigned i = 0; i < colInfo->columnCount(); i++) { 44508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Add in half the column gap to the left and right of the rect. 445168513a70bcd92384395513322f1b801e7bf9c729Steve Block IntRect colRect = columnRectAt(colInfo, i); 44522bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) { 44532fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntRect gapAndColumnRect(colRect.x() - halfColGap, colRect.y(), colRect.width() + colGap, colRect.height()); 44542fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (point.x() >= gapAndColumnRect.x() && point.x() < gapAndColumnRect.maxX()) { 44552fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // FIXME: The clamping that follows is not completely right for right-to-left 44562fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // content. 44572fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // Clamp everything above the column to its top left. 44582fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (point.y() < gapAndColumnRect.y()) 44592fc2651226baac27029e38c9d6ef883fa32084dbSteve Block point = gapAndColumnRect.location(); 44602fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // Clamp everything below the column to the next column's top left. If there is 44612fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // no next column, this still maps to just after this column. 44622fc2651226baac27029e38c9d6ef883fa32084dbSteve Block else if (point.y() >= gapAndColumnRect.maxY()) { 44632fc2651226baac27029e38c9d6ef883fa32084dbSteve Block point = gapAndColumnRect.location(); 44642fc2651226baac27029e38c9d6ef883fa32084dbSteve Block point.move(0, gapAndColumnRect.height()); 44652fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 44662fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 44672fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // We're inside the column. Translate the x and y into our column coordinate space. 44682fc2651226baac27029e38c9d6ef883fa32084dbSteve Block point.move(columnPoint.x() - colRect.x(), logicalOffset); 44692fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return; 4470dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block } 44712fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 44722fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // Move to the next position. 44732fc2651226baac27029e38c9d6ef883fa32084dbSteve Block logicalOffset += colRect.height(); 44742fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } else { 44752fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntRect gapAndColumnRect(colRect.x(), colRect.y() - halfColGap, colRect.width(), colRect.height() + colGap); 44762fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (point.y() >= gapAndColumnRect.y() && point.y() < gapAndColumnRect.maxY()) { 44772fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // FIXME: The clamping that follows is not completely right for right-to-left 44782fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // content. 44792fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // Clamp everything above the column to its top left. 44802fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (point.x() < gapAndColumnRect.x()) 44812fc2651226baac27029e38c9d6ef883fa32084dbSteve Block point = gapAndColumnRect.location(); 44822fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // Clamp everything below the column to the next column's top left. If there is 44832fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // no next column, this still maps to just after this column. 44842fc2651226baac27029e38c9d6ef883fa32084dbSteve Block else if (point.x() >= gapAndColumnRect.maxX()) { 44852fc2651226baac27029e38c9d6ef883fa32084dbSteve Block point = gapAndColumnRect.location(); 44862fc2651226baac27029e38c9d6ef883fa32084dbSteve Block point.move(gapAndColumnRect.width(), 0); 44872fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 4488dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block 44892fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // We're inside the column. Translate the x and y into our column coordinate space. 44902fc2651226baac27029e38c9d6ef883fa32084dbSteve Block point.move(logicalOffset, columnPoint.y() - colRect.y()); 44912fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return; 44922fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 44932fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 44942fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // Move to the next position. 44952fc2651226baac27029e38c9d6ef883fa32084dbSteve Block logicalOffset += colRect.width(); 44968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 44978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 44988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 44998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 45008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::adjustRectForColumns(IntRect& r) const 45018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 45028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Just bail if we have no columns. 45038f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!hasColumns()) 45048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 45058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 45065abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick ColumnInfo* colInfo = columnInfo(); 45078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 45088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Begin with a result rect that is empty. 45098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project IntRect result; 45108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 45118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Determine which columns we intersect. 451268513a70bcd92384395513322f1b801e7bf9c729Steve Block unsigned colCount = columnCount(colInfo); 45136c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen if (!colCount) 45146c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen return; 4515e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block 45162fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int logicalLeft = logicalLeftOffsetForContent(); 45172fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int currLogicalOffset = 0; 45182fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 45196c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen for (unsigned i = 0; i < colCount; i++) { 452068513a70bcd92384395513322f1b801e7bf9c729Steve Block IntRect colRect = columnRectAt(colInfo, i); 45218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project IntRect repaintRect = r; 45222bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) { 45232fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int currXOffset = colRect.x() - logicalLeft; 45242fc2651226baac27029e38c9d6ef883fa32084dbSteve Block repaintRect.move(currXOffset, currLogicalOffset); 45252fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalOffset -= colRect.height(); 45262fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } else { 45272fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int currYOffset = colRect.y() - logicalLeft; 45282fc2651226baac27029e38c9d6ef883fa32084dbSteve Block repaintRect.move(currLogicalOffset, currYOffset); 45292fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalOffset -= colRect.width(); 45302fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 45318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project repaintRect.intersect(colRect); 45328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project result.unite(repaintRect); 45338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 45348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 45358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project r = result; 45368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 45378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 45382fc2651226baac27029e38c9d6ef883fa32084dbSteve BlockIntPoint RenderBlock::flipForWritingModeIncludingColumns(const IntPoint& point) const 45392fc2651226baac27029e38c9d6ef883fa32084dbSteve Block{ 45402fc2651226baac27029e38c9d6ef883fa32084dbSteve Block ASSERT(hasColumns()); 45412fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (!hasColumns() || !style()->isFlippedBlocksWritingMode()) 45422fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return point; 45432fc2651226baac27029e38c9d6ef883fa32084dbSteve Block ColumnInfo* colInfo = columnInfo(); 45442fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int columnLogicalHeight = colInfo->columnHeight(); 45452fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int expandedLogicalHeight = borderBefore() + paddingBefore() + columnCount(colInfo) * columnLogicalHeight + borderAfter() + paddingAfter() + scrollbarLogicalHeight(); 45462bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 45472fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return IntPoint(point.x(), expandedLogicalHeight - point.y()); 45482fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return IntPoint(expandedLogicalHeight - point.x(), point.y()); 45492fc2651226baac27029e38c9d6ef883fa32084dbSteve Block} 45502fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 45512fc2651226baac27029e38c9d6ef883fa32084dbSteve Blockvoid RenderBlock::flipForWritingModeIncludingColumns(IntRect& rect) const 45522fc2651226baac27029e38c9d6ef883fa32084dbSteve Block{ 45532fc2651226baac27029e38c9d6ef883fa32084dbSteve Block ASSERT(hasColumns()); 45542fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (!hasColumns() || !style()->isFlippedBlocksWritingMode()) 45552fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return; 45562fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 45572fc2651226baac27029e38c9d6ef883fa32084dbSteve Block ColumnInfo* colInfo = columnInfo(); 45582fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int columnLogicalHeight = colInfo->columnHeight(); 45592fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int expandedLogicalHeight = borderBefore() + paddingBefore() + columnCount(colInfo) * columnLogicalHeight + borderAfter() + paddingAfter() + scrollbarLogicalHeight(); 45602bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 45612fc2651226baac27029e38c9d6ef883fa32084dbSteve Block rect.setY(expandedLogicalHeight - rect.maxY()); 45622fc2651226baac27029e38c9d6ef883fa32084dbSteve Block else 45632fc2651226baac27029e38c9d6ef883fa32084dbSteve Block rect.setX(expandedLogicalHeight - rect.maxX()); 45642fc2651226baac27029e38c9d6ef883fa32084dbSteve Block} 45652fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 4566692e5dbf12901edacf14812a6fae25462920af42Steve Blockvoid RenderBlock::adjustForColumns(IntSize& offset, const IntPoint& point) const 4567692e5dbf12901edacf14812a6fae25462920af42Steve Block{ 4568692e5dbf12901edacf14812a6fae25462920af42Steve Block if (!hasColumns()) 4569692e5dbf12901edacf14812a6fae25462920af42Steve Block return; 4570692e5dbf12901edacf14812a6fae25462920af42Steve Block 45715abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick ColumnInfo* colInfo = columnInfo(); 45725abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick 45732fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int logicalLeft = logicalLeftOffsetForContent(); 457468513a70bcd92384395513322f1b801e7bf9c729Steve Block size_t colCount = columnCount(colInfo); 45752fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int colLogicalWidth = colInfo->desiredColumnWidth(); 45762fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int colLogicalHeight = colInfo->columnHeight(); 45772fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 457868513a70bcd92384395513322f1b801e7bf9c729Steve Block for (size_t i = 0; i < colCount; ++i) { 45792fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // Compute the edges for a given column in the block progression direction. 45802fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntRect sliceRect = IntRect(logicalLeft, borderBefore() + paddingBefore() + i * colLogicalHeight, colLogicalWidth, colLogicalHeight); 45812bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!isHorizontalWritingMode()) 45822fc2651226baac27029e38c9d6ef883fa32084dbSteve Block sliceRect = sliceRect.transposedRect(); 45832fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 45842fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // If we have a flipped blocks writing mode, then convert the column so that it's coming from the after edge (either top or left edge). 45852fc2651226baac27029e38c9d6ef883fa32084dbSteve Block flipForWritingModeIncludingColumns(sliceRect); 45862fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 45872fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int logicalOffset = style()->isFlippedBlocksWritingMode() ? (colCount - 1 - i) * colLogicalHeight : i * colLogicalHeight; 4588692e5dbf12901edacf14812a6fae25462920af42Steve Block 45892fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // Now we're in the same coordinate space as the point. See if it is inside the rectangle. 45902bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) { 45912fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (point.y() >= sliceRect.y() && point.y() < sliceRect.maxY()) { 45922fc2651226baac27029e38c9d6ef883fa32084dbSteve Block offset.expand(columnRectAt(colInfo, i).x() - logicalLeft, -logicalOffset); 45932fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return; 45942fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 45952fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } else { 45962fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (point.x() >= sliceRect.x() && point.x() < sliceRect.maxX()) { 45972fc2651226baac27029e38c9d6ef883fa32084dbSteve Block offset.expand(-logicalOffset, columnRectAt(colInfo, i).y() - logicalLeft); 45982fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return; 45992fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 46002fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 4601692e5dbf12901edacf14812a6fae25462920af42Steve Block } 4602692e5dbf12901edacf14812a6fae25462920af42Steve Block} 4603692e5dbf12901edacf14812a6fae25462920af42Steve Block 4604bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsenvoid RenderBlock::computePreferredLogicalWidths() 46058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 4606bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen ASSERT(preferredLogicalWidthsDirty()); 46078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project updateFirstLetter(); 46098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4610a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!isTableCell() && style()->logicalWidth().isFixed() && style()->logicalWidth().value() > 0) 4611a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = computeContentBoxLogicalWidth(style()->logicalWidth().value()); 46128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 4613bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_minPreferredLogicalWidth = 0; 4614bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = 0; 46158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) 4617bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen computeInlinePreferredLogicalWidths(); 46188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 4619bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen computeBlockPreferredLogicalWidths(); 46208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4621bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(m_minPreferredLogicalWidth, m_maxPreferredLogicalWidth); 46228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!style()->autoWrap() && childrenInline()) { 4624bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth; 46258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // A horizontal marquee with inline children has no minimum width. 46278f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (layer() && layer()->marquee() && layer()->marquee()->isHorizontal()) 4628bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_minPreferredLogicalWidth = 0; 46298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 46308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4631f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int scrollbarWidth = 0; 4632f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (hasOverflowClip() && style()->overflowY() == OSCROLL) { 4633f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch layer()->setHasVerticalScrollbar(true); 4634f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch scrollbarWidth = verticalScrollbarWidth(); 4635f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch m_maxPreferredLogicalWidth += scrollbarWidth; 4636f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 4637f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 46388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isTableCell()) { 463928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu Length w = toRenderTableCell(this)->styleOrColLogicalWidth(); 4640f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (w.isFixed() && w.value() > 0) { 4641bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(m_minPreferredLogicalWidth, computeContentBoxLogicalWidth(w.value())); 4642f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch scrollbarWidth = 0; 4643f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 46448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 4645f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 4646f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch m_minPreferredLogicalWidth += scrollbarWidth; 46478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 46488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4649a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (style()->logicalMinWidth().isFixed() && style()->logicalMinWidth().value() > 0) { 4650a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_maxPreferredLogicalWidth = max(m_maxPreferredLogicalWidth, computeContentBoxLogicalWidth(style()->logicalMinWidth().value())); 4651a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_minPreferredLogicalWidth = max(m_minPreferredLogicalWidth, computeContentBoxLogicalWidth(style()->logicalMinWidth().value())); 46528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 46538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4654a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (style()->logicalMaxWidth().isFixed() && style()->logicalMaxWidth().value() != undefinedLength) { 4655a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_maxPreferredLogicalWidth = min(m_maxPreferredLogicalWidth, computeContentBoxLogicalWidth(style()->logicalMaxWidth().value())); 4656a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_minPreferredLogicalWidth = min(m_minPreferredLogicalWidth, computeContentBoxLogicalWidth(style()->logicalMaxWidth().value())); 46578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 46588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4659f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int borderAndPadding = borderAndPaddingLogicalWidth(); 4660f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch m_minPreferredLogicalWidth += borderAndPadding; 4661f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch m_maxPreferredLogicalWidth += borderAndPadding; 46628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4663bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setPreferredLogicalWidthsDirty(false); 46648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 46658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46660bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdochstruct InlineMinMaxIterator { 46678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* InlineMinMaxIterator is a class that will iterate over all render objects that contribute to 46688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inline min/max width calculations. Note the following about the way it walks: 46698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (1) Positioned content is skipped (since it does not contribute to min/max width of a block) 46708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (2) We do not drill into the children of floats or replaced elements, since you can't break 46718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project in the middle of such an element. 46728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (3) Inline flows (e.g., <a>, <span>, <i>) are walked twice, since each side can have 46738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project distinct borders/margin/padding that contribute to the min/max width. 46748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project*/ 46758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* parent; 46768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* current; 46778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool endOfInline; 46788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project InlineMinMaxIterator(RenderObject* p, bool end = false) 46808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project :parent(p), current(p), endOfInline(end) {} 46818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* next(); 46838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project}; 46848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectRenderObject* InlineMinMaxIterator::next() 46868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 46878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* result = 0; 46888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool oldEndOfInline = endOfInline; 46898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project endOfInline = false; 46908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (current || current == parent) { 46918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!oldEndOfInline && 46928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (current == parent || 46938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (!current->isFloating() && !current->isReplaced() && !current->isPositioned()))) 46948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project result = current->firstChild(); 46958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!result) { 46968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We hit the end of our inline. (It was empty, e.g., <span></span>.) 4697635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (!oldEndOfInline && current->isRenderInline()) { 46988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project result = current; 46998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project endOfInline = true; 47008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 47018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 47028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (current && current != parent) { 47048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project result = current->nextSibling(); 47058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (result) break; 47068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project current = current->parent(); 4707635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (current && current != parent && current->isRenderInline()) { 47088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project result = current; 47098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project endOfInline = true; 47108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 47118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 47128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 47138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 47148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!result) 47168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 47178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4718635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (!result->isPositioned() && (result->isText() || result->isFloating() || result->isReplaced() || result->isRenderInline())) 47198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 47208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project current = result; 47228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project result = 0; 47238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 47248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Update our position. 47268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project current = result; 47278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return current; 47288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 47298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstatic int getBPMWidth(int childValue, Length cssUnit) 47318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 47328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (cssUnit.type() != Auto) 47338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return (cssUnit.isFixed() ? cssUnit.value() : childValue); 47348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 47358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 47368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47378f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianstatic int getBorderPaddingMargin(const RenderBoxModelObject* child, bool endOfInline) 47388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 47398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderStyle* cstyle = child->style(); 47402fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (endOfInline) 47412fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return getBPMWidth(child->marginEnd(), cstyle->marginEnd()) + 47422fc2651226baac27029e38c9d6ef883fa32084dbSteve Block getBPMWidth(child->paddingEnd(), cstyle->paddingEnd()) + 47432fc2651226baac27029e38c9d6ef883fa32084dbSteve Block child->borderEnd(); 47442fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return getBPMWidth(child->marginStart(), cstyle->marginStart()) + 47452fc2651226baac27029e38c9d6ef883fa32084dbSteve Block getBPMWidth(child->paddingStart(), cstyle->paddingStart()) + 47462fc2651226baac27029e38c9d6ef883fa32084dbSteve Block child->borderStart(); 47478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 47488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 474981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochstatic inline void stripTrailingSpace(float& inlineMax, float& inlineMin, 47508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* trailingSpaceChild) 47518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 47528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (trailingSpaceChild && trailingSpaceChild->isText()) { 47538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Collapse away the trailing space at the end of a block. 4754635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderText* t = toRenderText(trailingSpaceChild); 47558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project const UChar space = ' '; 47568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project const Font& font = t->style()->font(); // FIXME: This ignores first-line. 475781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float spaceWidth = font.width(TextRun(&space, 1)); 47588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMax -= spaceWidth + font.wordSpacing(); 47598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (inlineMin > inlineMax) 47608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = inlineMax; 47618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 47628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 47638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 476481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochstatic inline void updatePreferredWidth(int& preferredWidth, float& result) 476581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch{ 476681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch int snappedResult = ceilf(result); 476781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch preferredWidth = max(snappedResult, preferredWidth); 476881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch} 476981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 4770bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsenvoid RenderBlock::computeInlinePreferredLogicalWidths() 47718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 477281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float inlineMax = 0; 477381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float inlineMin = 0; 47748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47752fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int cw = containingBlock()->contentLogicalWidth(); 47768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If we are at the start of a line, we want to ignore all white-space. 47788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Also strip spaces if we previously had text that ended in a trailing space. 47798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool stripFrontSpaces = true; 47808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* trailingSpaceChild = 0; 47818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Firefox and Opera will allow a table cell to grow to fit an image inside it under 47838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // very specific cirucumstances (in order to match common WinIE renderings). 47848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Not supporting the quirk has caused us to mis-render some real sites. (See Bugzilla 10517.) 47852fc2651226baac27029e38c9d6ef883fa32084dbSteve Block bool allowImagesToBreak = !document()->inQuirksMode() || !isTableCell() || !style()->logicalWidth().isIntrinsicOrAuto(); 47868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool autoWrap, oldAutoWrap; 47888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project autoWrap = oldAutoWrap = style()->autoWrap(); 47898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project InlineMinMaxIterator childIterator(this); 47918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool addedTextIndent = false; // Only gets added in once. 47928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* prevFloat = 0; 47938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (RenderObject* child = childIterator.next()) { 47948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project autoWrap = child->isReplaced() ? child->parent()->style()->autoWrap() : 47958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project child->style()->autoWrap(); 47968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!child->isBR()) { 47988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Step One: determine whether or not we need to go ahead and 47998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // terminate our current line. Each discrete chunk can become 48008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the new min-width, if it is the widest chunk seen so far, and 48018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // it can also become the max-width. 48028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Children fall into three categories: 48048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (1) An inline flow object. These objects always have a min/max of 0, 48058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // and are included in the iteration solely so that their margins can 48068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // be added in. 48078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 48088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (2) An inline non-text non-flow object, e.g., an inline replaced element. 48098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // These objects can always be on a line by themselves, so in this situation 48108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // we need to go ahead and break the current line, and then add in our own 48118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // margins and min/max width on its own line, and then terminate the line. 48128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 48138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (3) A text object. Text runs can have breakable characters at the start, 48148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the middle or the end. They may also lose whitespace off the front if 48158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // we're already ignoring whitespace. In order to compute accurate min-width 48168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // information, we need three pieces of information. 48178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (a) the min-width of the first non-breakable run. Should be 0 if the text string 48188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // starts with whitespace. 48198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (b) the min-width of the last non-breakable run. Should be 0 if the text string 48208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // ends with whitespace. 48218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (c) the min/max width of the string (trimmed for whitespace). 48228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 48238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the text string starts with whitespace, then we need to go ahead and 48248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // terminate our current line (unless we're already in a whitespace stripping 48258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // mode. 48268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 48278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the text string has a breakable character in the middle, but didn't start 48288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // with whitespace, then we add the width of the first non-breakable run and 48298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // then end the current line. We then need to use the intermediate min/max width 48308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // values (if any of them are larger than our current min/max). We then look at 48318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the width of the last non-breakable run and use that to start a new line 48328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (unless we end in whitespace). 48338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderStyle* cstyle = child->style(); 483481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float childMin = 0; 483581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float childMax = 0; 48368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!child->isText()) { 48388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Case (1) and (2). Inline replaced and inline flow elements. 4839635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (child->isRenderInline()) { 48408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Add in padding/border/margin from the appropriate side of 48418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the element. 484281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float bpm = getBorderPaddingMargin(toRenderInline(child), childIterator.endOfInline); 48438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childMin += bpm; 48448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childMax += bpm; 48458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin += childMin; 48478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMax += childMax; 48488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4849bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen child->setPreferredLogicalWidthsDirty(false); 48508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 48518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Inline replaced elts add in their margins to their min/max values. 485281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float margins = 0; 48532fc2651226baac27029e38c9d6ef883fa32084dbSteve Block Length startMargin = cstyle->marginStart(); 48542fc2651226baac27029e38c9d6ef883fa32084dbSteve Block Length endMargin = cstyle->marginEnd(); 48552fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (startMargin.isFixed()) 48562fc2651226baac27029e38c9d6ef883fa32084dbSteve Block margins += startMargin.value(); 48572fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (endMargin.isFixed()) 48582fc2651226baac27029e38c9d6ef883fa32084dbSteve Block margins += endMargin.value(); 48598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childMin += margins; 48608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childMax += margins; 48618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 48628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 48638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!child->isRenderInline() && !child->isText()) { 48658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Case (2). Inline replaced elements and floats. 48668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Go ahead and terminate the current line as far as 48678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // minwidth is concerned. 4868bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen childMin += child->minPreferredLogicalWidth(); 4869bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen childMax += child->maxPreferredLogicalWidth(); 48708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool clearPreviousFloat; 48728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isFloating()) { 48738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project clearPreviousFloat = (prevFloat 48748f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian && ((prevFloat->style()->floating() == FLEFT && (child->style()->clear() & CLEFT)) 48758f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian || (prevFloat->style()->floating() == FRIGHT && (child->style()->clear() & CRIGHT)))); 48768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project prevFloat = child; 48778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else 48788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project clearPreviousFloat = false; 48798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool canBreakReplacedElement = !child->isImage() || allowImagesToBreak; 48818f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if ((canBreakReplacedElement && (autoWrap || oldAutoWrap)) || clearPreviousFloat) { 488281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 48838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = 0; 48848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 48858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If we're supposed to clear the previous float, then terminate maxwidth as well. 48878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (clearPreviousFloat) { 488881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_maxPreferredLogicalWidth, inlineMax); 48898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMax = 0; 48908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 48918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Add in text-indent. This is added in only once. 48938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int ti = 0; 48948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!addedTextIndent) { 48958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project addedTextIndent = true; 48968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ti = style()->textIndent().calcMinValue(cw); 48972fc2651226baac27029e38c9d6ef883fa32084dbSteve Block childMin += ti; 48982fc2651226baac27029e38c9d6ef883fa32084dbSteve Block childMax += ti; 48998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Add our width to the max. 49028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMax += childMax; 49038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!autoWrap || !canBreakReplacedElement) { 49058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isFloating()) 490681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, childMin); 49078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 49088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin += childMin; 49098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 49108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Now check our line. 491181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, childMin); 49128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Now start a new line. 49148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = 0; 49158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We are no longer stripping whitespace at the start of 49188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // a line. 49198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!child->isFloating()) { 49208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project stripFrontSpaces = false; 49218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project trailingSpaceChild = 0; 49228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else if (child->isText()) { 49248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Case (3). Text. 4925635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderText* t = toRenderText(child); 49268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (t->isWordBreak()) { 492881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 49298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = 0; 49308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 49318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49332bde8e466a4451c7319e3a072d118917957d6554Steve Block if (t->style()->hasTextCombine() && t->isCombineText()) 49342fc2651226baac27029e38c9d6ef883fa32084dbSteve Block toRenderCombineText(t)->combineText(); 49352fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 49368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Determine if we have a breakable character. Pass in 49378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // whether or not we should ignore any spaces at the front 49388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // of the string. If those are going to be stripped out, 49398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // then they shouldn't be considered in the breakable char 49408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // check. 49418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool hasBreakableChar, hasBreak; 494281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float beginMin, endMin; 49438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool beginWS, endWS; 494481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float beginMax, endMax; 49458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project t->trimmedPrefWidths(inlineMax, beginMin, beginWS, endMin, endWS, 49468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project hasBreakableChar, hasBreak, beginMax, endMax, 49478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childMin, childMax, stripFrontSpaces); 49488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // This text object will not be rendered, but it may still provide a breaking opportunity. 49508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!hasBreak && childMax == 0) { 49518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (autoWrap && (beginWS || endWS)) { 495281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 49538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = 0; 49548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 49568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (stripFrontSpaces) 49598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project trailingSpaceChild = child; 49608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 49618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project trailingSpaceChild = 0; 49628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Add in text-indent. This is added in only once. 49648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int ti = 0; 49658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!addedTextIndent) { 49668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project addedTextIndent = true; 49678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ti = style()->textIndent().calcMinValue(cw); 49688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childMin+=ti; beginMin += ti; 49698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childMax+=ti; beginMax += ti; 49708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If we have no breakable characters at all, 49738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // then this is the easy case. We add ourselves to the current 49748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // min and max and continue. 49758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!hasBreakableChar) { 49768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin += childMin; 49778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 49788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We have a breakable character. Now we need to know if 49798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // we start and end with whitespace. 49808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (beginWS) 49818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Go ahead and end the current line. 498281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 49838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 49848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin += beginMin; 498581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 49868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childMin -= ti; 49878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = childMin; 49908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (endWS) { 49928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We end in whitespace, which means we can go ahead 49938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // and end our current line. 499481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 49958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = 0; 49968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 499781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 49988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = endMin; 49998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (hasBreak) { 50038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMax += beginMax; 500481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_maxPreferredLogicalWidth, inlineMax); 500581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_maxPreferredLogicalWidth, childMax); 50068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMax = endMax; 50078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else 50088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMax += childMax; 50098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5010643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 5011643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // Ignore spaces after a list marker. 5012643ca7872b450ea4efacab6188849e5aac2ba161Steve Block if (child->isListMarker()) 5013643ca7872b450ea4efacab6188849e5aac2ba161Steve Block stripFrontSpaces = true; 50148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 501581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 501681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_maxPreferredLogicalWidth, inlineMax); 50178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = inlineMax = 0; 50188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project stripFrontSpaces = true; 50198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project trailingSpaceChild = 0; 50208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project oldAutoWrap = autoWrap; 50238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->collapseWhiteSpace()) 50268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project stripTrailingSpace(inlineMax, inlineMin, trailingSpaceChild); 50278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 502881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 502981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_maxPreferredLogicalWidth, inlineMax); 50308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 50318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// Use a very large value (in effect infinite). 50338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#define BLOCK_MAX_WIDTH 15000 50348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5035bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsenvoid RenderBlock::computeBlockPreferredLogicalWidths() 50368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 50378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool nowrap = style()->whiteSpace() == NOWRAP; 50388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject *child = firstChild(); 50408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int floatLeftWidth = 0, floatRightWidth = 0; 50418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (child) { 50428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Positioned children don't affect the min/max width 50438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isPositioned()) { 50448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project child = child->nextSibling(); 50458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 50468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50488f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (child->isFloating() || (child->isBox() && toRenderBox(child)->avoidsFloats())) { 50498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int floatTotalWidth = floatLeftWidth + floatRightWidth; 50508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->style()->clear() & CLEFT) { 5051bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(floatTotalWidth, m_maxPreferredLogicalWidth); 50528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatLeftWidth = 0; 50538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->style()->clear() & CRIGHT) { 5055bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(floatTotalWidth, m_maxPreferredLogicalWidth); 50568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatRightWidth = 0; 50578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // A margin basically has three types: fixed, percentage, and auto (variable). 50618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Auto and percentage margins simply become 0 when computing min/max width. 50628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Fixed margins can be added in as is. 50632fc2651226baac27029e38c9d6ef883fa32084dbSteve Block Length startMarginLength = child->style()->marginStart(); 50642fc2651226baac27029e38c9d6ef883fa32084dbSteve Block Length endMarginLength = child->style()->marginEnd(); 50652fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int margin = 0; 50662fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int marginStart = 0; 50672fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int marginEnd = 0; 50682fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (startMarginLength.isFixed()) 50692fc2651226baac27029e38c9d6ef883fa32084dbSteve Block marginStart += startMarginLength.value(); 50702fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (endMarginLength.isFixed()) 50712fc2651226baac27029e38c9d6ef883fa32084dbSteve Block marginEnd += endMarginLength.value(); 50722fc2651226baac27029e38c9d6ef883fa32084dbSteve Block margin = marginStart + marginEnd; 50738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5074bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int w = child->minPreferredLogicalWidth() + margin; 5075bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_minPreferredLogicalWidth = max(w, m_minPreferredLogicalWidth); 50768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // IE ignores tables for calculation of nowrap. Makes some sense. 50788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (nowrap && !child->isTable()) 5079bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(w, m_maxPreferredLogicalWidth); 50808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5081bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen w = child->maxPreferredLogicalWidth() + margin; 50828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!child->isFloating()) { 50848f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (child->isBox() && toRenderBox(child)->avoidsFloats()) { 50858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Determine a left and right max value based off whether or not the floats can fit in the 50868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // margins of the object. For negative margins, we will attempt to overlap the float if the negative margin 50878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // is smaller than the float width. 50882fc2651226baac27029e38c9d6ef883fa32084dbSteve Block bool ltr = containingBlock()->style()->isLeftToRightDirection(); 50892fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int marginLogicalLeft = ltr ? marginStart : marginEnd; 50902fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int marginLogicalRight = ltr ? marginEnd : marginStart; 50912fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int maxLeft = marginLogicalLeft > 0 ? max(floatLeftWidth, marginLogicalLeft) : floatLeftWidth + marginLogicalLeft; 50922fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int maxRight = marginLogicalRight > 0 ? max(floatRightWidth, marginLogicalRight) : floatRightWidth + marginLogicalRight; 5093bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen w = child->maxPreferredLogicalWidth() + maxLeft + maxRight; 50948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project w = max(w, floatLeftWidth + floatRightWidth); 50958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 5097bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(floatLeftWidth + floatRightWidth, m_maxPreferredLogicalWidth); 50988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatLeftWidth = floatRightWidth = 0; 50998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 51008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 51018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isFloating()) { 51028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->floating() == FLEFT) 51038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatLeftWidth += w; 51048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 51058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatRightWidth += w; 51068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else 5107bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(w, m_maxPreferredLogicalWidth); 51088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 51098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // A very specific WinIE quirk. 51108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Example: 51118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project /* 51128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project <div style="position:absolute; width:100px; top:50px;"> 51138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project <div style="position:absolute;left:0px;top:50px;height:50px;background-color:green"> 51148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project <table style="width:100%"><tr><td></table> 51158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project </div> 51168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project </div> 51178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 51188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // In the above example, the inner absolute positioned block should have a computed width 51198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // of 100px because of the table. 51208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We can achieve this effect by making the maxwidth of blocks that contain tables 51218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // with percentage widths be infinite (as long as they are not inside a table cell). 51222fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (document()->inQuirksMode() && child->style()->logicalWidth().isPercent() && 5123bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen !isTableCell() && child->isTable() && m_maxPreferredLogicalWidth < BLOCK_MAX_WIDTH) { 51248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderBlock* cb = containingBlock(); 51258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (!cb->isRenderView() && !cb->isTableCell()) 51268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project cb = cb->containingBlock(); 51278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!cb->isTableCell()) 5128bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = BLOCK_MAX_WIDTH; 51298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 51308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 51318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project child = child->nextSibling(); 51328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 51338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 51348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Always make sure these values are non-negative. 5135bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_minPreferredLogicalWidth = max(0, m_minPreferredLogicalWidth); 5136bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(0, m_maxPreferredLogicalWidth); 51378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5138bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(floatLeftWidth + floatRightWidth, m_maxPreferredLogicalWidth); 51398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 51408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 51418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::hasLineIfEmpty() const 51428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 51430bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch if (!node()) 51440bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch return false; 51450bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 51462bde8e466a4451c7319e3a072d118917957d6554Steve Block if (node()->rendererIsEditable() && node()->rootEditableElement() == node()) 51470bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch return true; 51480bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 5149cad810f21b803229eb11403f9209855525a25d57Steve Block if (node()->isShadowRoot() && (node()->shadowHost()->hasTagName(inputTag))) 51500bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch return true; 51510bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 51520bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch return false; 51538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 51548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5155a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::lineHeight(bool firstLine, LineDirectionMode direction, LinePositionMode linePositionMode) const 51568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 51578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Inline blocks are replaced elements. Otherwise, just pass off to 51588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the base class. If we're being queried as though we're the root line 51598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // box, then the fact that we're an inline-block is irrelevant, and we behave 51608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // just like a block. 5161a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (isReplaced() && linePositionMode == PositionOnContainingLine) 5162a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return RenderBox::lineHeight(firstLine, direction, linePositionMode); 5163a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 51648f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (firstLine && document()->usesFirstLineRules()) { 51658f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderStyle* s = style(firstLine); 51668f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (s != style()) 51678f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return s->computedLineHeight(); 51688f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 51698f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 51708f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (m_lineHeight == -1) 51718f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian m_lineHeight = style()->computedLineHeight(); 51728f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 51738f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return m_lineHeight; 51748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 51758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 51766b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brennerint RenderBlock::baselinePosition(FontBaseline baselineType, bool firstLine, LineDirectionMode direction, LinePositionMode linePositionMode) const 51778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 51788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Inline blocks are replaced elements. Otherwise, just pass off to 51798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the base class. If we're being queried as though we're the root line 51808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // box, then the fact that we're an inline-block is irrelevant, and we behave 51818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // just like a block. 5182a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (isReplaced() && linePositionMode == PositionOnContainingLine) { 51838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // For "leaf" theme objects, let the theme decide what the baseline position is. 51848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: Might be better to have a custom CSS property instead, so that if the theme 51858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // is turned off, checkboxes/radios will still have decent baselines. 5186a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // FIXME: Need to patch form controls to deal with vertical lines. 51878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->hasAppearance() && !theme()->isControlContainer(style()->appearance())) 51888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return theme()->baselinePosition(this); 51898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 51908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // CSS2.1 states that the baseline of an inline block is the baseline of the last line box in 51918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the normal flow. We make an exception for marquees, since their baselines are meaningless 51928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (the content inside them moves). This matches WinIE as well, which just bottom-aligns them. 51938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We also give up on finding a baseline if we have a vertical scrollbar, or if we are scrolled 51948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // vertically (e.g., an overflow:hidden block that has had scrollTop moved) or if the baseline is outside 51958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // of our content box. 5196a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bool ignoreBaseline = (layer() && (layer()->marquee() || (direction == HorizontalLine ? (layer()->verticalScrollbar() || layer()->scrollYOffset() != 0) 51976b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner : (layer()->horizontalScrollbar() || layer()->scrollXOffset() != 0)))) || (isWritingModeRoot() && !isRubyRun()); 51986b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner 5199a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int baselinePos = ignoreBaseline ? -1 : lastLineBoxBaseline(); 5200a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 5201a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int bottomOfContent = direction == HorizontalLine ? borderTop() + paddingTop() + contentHeight() : borderRight() + paddingRight() + contentWidth(); 5202a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (baselinePos != -1 && baselinePos <= bottomOfContent) 5203a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return direction == HorizontalLine ? marginTop() + baselinePos : marginRight() + baselinePos; 5204a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 52056b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner return RenderBox::baselinePosition(baselineType, firstLine, direction, linePositionMode); 52068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5207a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 52082fc2651226baac27029e38c9d6ef883fa32084dbSteve Block const FontMetrics& fontMetrics = style(firstLine)->fontMetrics(); 52092fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return fontMetrics.ascent(baselineType) + (lineHeight(firstLine, direction, linePositionMode) - fontMetrics.height()) / 2; 52108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 52118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 52128f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianint RenderBlock::firstLineBoxBaseline() const 52138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 52146b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (!isBlockFlow() || (isWritingModeRoot() && !isRubyRun())) 52158f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return -1; 52168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 52178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) { 52188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (firstLineBox()) 52192fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return firstLineBox()->logicalTop() + style(true)->fontMetrics().ascent(firstRootBox()->baselineType()); 52208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 52218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return -1; 52228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 52238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 5224635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (RenderBox* curr = firstChildBox(); curr; curr = curr->nextSiblingBox()) { 52258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!curr->isFloatingOrPositioned()) { 52268f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int result = curr->firstLineBoxBaseline(); 52278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (result != -1) 5228a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return curr->logicalTop() + result; // Translate to our coordinate space. 52298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 52308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 52318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 52328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 52338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return -1; 52348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 52358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 52368f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianint RenderBlock::lastLineBoxBaseline() const 52378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 52386b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (!isBlockFlow() || (isWritingModeRoot() && !isRubyRun())) 52398f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return -1; 52408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 52412bde8e466a4451c7319e3a072d118917957d6554Steve Block LineDirectionMode lineDirection = isHorizontalWritingMode() ? HorizontalLine : VerticalLine; 5242a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 52438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) { 5244a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!firstLineBox() && hasLineIfEmpty()) { 52452fc2651226baac27029e38c9d6ef883fa32084dbSteve Block const FontMetrics& fontMetrics = firstLineStyle()->fontMetrics(); 52462fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return fontMetrics.ascent() 52472fc2651226baac27029e38c9d6ef883fa32084dbSteve Block + (lineHeight(true, lineDirection, PositionOfInteriorLineBoxes) - fontMetrics.height()) / 2 52482fc2651226baac27029e38c9d6ef883fa32084dbSteve Block + (lineDirection == HorizontalLine ? borderTop() + paddingTop() : borderRight() + paddingRight()); 5249a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 52508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (lastLineBox()) 52512fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return lastLineBox()->logicalTop() + style(lastLineBox() == firstLineBox())->fontMetrics().ascent(lastRootBox()->baselineType()); 52528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return -1; 5253a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else { 52548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool haveNormalFlowChild = false; 5255635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (RenderBox* curr = lastChildBox(); curr; curr = curr->previousSiblingBox()) { 52568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!curr->isFloatingOrPositioned()) { 52578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project haveNormalFlowChild = true; 52588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int result = curr->lastLineBoxBaseline(); 52598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (result != -1) 5260a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return curr->logicalTop() + result; // Translate to our coordinate space. 52618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 52628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5263a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!haveNormalFlowChild && hasLineIfEmpty()) { 52642fc2651226baac27029e38c9d6ef883fa32084dbSteve Block const FontMetrics& fontMetrics = firstLineStyle()->fontMetrics(); 52652fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return fontMetrics.ascent() 52662fc2651226baac27029e38c9d6ef883fa32084dbSteve Block + (lineHeight(true, lineDirection, PositionOfInteriorLineBoxes) - fontMetrics.height()) / 2 52672fc2651226baac27029e38c9d6ef883fa32084dbSteve Block + (lineDirection == HorizontalLine ? borderTop() + paddingTop() : borderRight() + paddingRight()); 5268a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 52698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 52708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 52718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return -1; 52728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 52738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5274635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectbool RenderBlock::containsNonZeroBidiLevel() const 5275635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project{ 5276635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (RootInlineBox* root = firstRootBox(); root; root = root->nextRootBox()) { 5277635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (InlineBox* box = root->firstLeafChild(); box; box = box->nextLeafChild()) { 5278635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (box->bidiLevel()) 5279635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return true; 5280635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project } 5281635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project } 5282635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return false; 5283635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} 5284635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 52858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectRenderBlock* RenderBlock::firstLineBlock() const 52868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 5287635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderBlock* firstLineBlock = const_cast<RenderBlock*>(this); 52888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool hasPseudo = false; 52898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (true) { 52908f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian hasPseudo = firstLineBlock->style()->hasPseudoStyle(FIRST_LINE); 52918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (hasPseudo) 52928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 52938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* parentBlock = firstLineBlock->parent(); 52948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (firstLineBlock->isReplaced() || firstLineBlock->isFloating() || 52958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project !parentBlock || parentBlock->firstChild() != firstLineBlock || !parentBlock->isBlockFlow()) 52968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 5297635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project ASSERT(parentBlock->isRenderBlock()); 52988f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian firstLineBlock = toRenderBlock(parentBlock); 52998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 53008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 53018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!hasPseudo) 53028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 53038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5304635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return firstLineBlock; 53058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 53068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 530768513a70bcd92384395513322f1b801e7bf9c729Steve Blockstatic RenderStyle* styleForFirstLetter(RenderObject* firstLetterBlock, RenderObject* firstLetterContainer) 530868513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 530968513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderStyle* pseudoStyle = firstLetterBlock->getCachedPseudoStyle(FIRST_LETTER, firstLetterContainer->firstLineStyle()); 531068513a70bcd92384395513322f1b801e7bf9c729Steve Block // Force inline display (except for floating first-letters). 531168513a70bcd92384395513322f1b801e7bf9c729Steve Block pseudoStyle->setDisplay(pseudoStyle->isFloating() ? BLOCK : INLINE); 531268513a70bcd92384395513322f1b801e7bf9c729Steve Block // CSS2 says first-letter can't be positioned. 531368513a70bcd92384395513322f1b801e7bf9c729Steve Block pseudoStyle->setPosition(StaticPosition); 531468513a70bcd92384395513322f1b801e7bf9c729Steve Block return pseudoStyle; 531568513a70bcd92384395513322f1b801e7bf9c729Steve Block} 531668513a70bcd92384395513322f1b801e7bf9c729Steve Block 5317a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch// CSS 2.1 http://www.w3.org/TR/CSS21/selector.html#first-letter 5318a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch// "Punctuation (i.e, characters defined in Unicode [UNICODE] in the "open" (Ps), "close" (Pe), 5319a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch// "initial" (Pi). "final" (Pf) and "other" (Po) punctuation classes), that precedes or follows the first letter should be included" 5320a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochstatic inline bool isPunctuationForFirstLetter(UChar c) 5321a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 5322a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch CharCategory charCategory = category(c); 5323a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return charCategory == Punctuation_Open 5324a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch || charCategory == Punctuation_Close 5325a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch || charCategory == Punctuation_InitialQuote 5326a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch || charCategory == Punctuation_FinalQuote 5327a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch || charCategory == Punctuation_Other; 5328a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 5329a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 5330a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochstatic inline bool shouldSkipForFirstLetter(UChar c) 5331a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 5332a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return isSpaceOrNewline(c) || c == noBreakSpace || isPunctuationForFirstLetter(c); 5333a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 5334a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 53358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::updateFirstLetter() 53368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 53378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!document()->usesFirstLetterRules()) 53388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 53398f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // Don't recur 53408f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (style()->styleType() == FIRST_LETTER) 53418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 53428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 53438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: We need to destroy the first-letter object if it is no longer the first child. Need to find 53448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // an efficient way to check for that situation though before implementing anything. 53458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* firstLetterBlock = this; 53468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool hasPseudoStyle = false; 53478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (true) { 53488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We only honor first-letter if the firstLetterBlock can have children in the DOM. This correctly 53498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // prevents form controls from honoring first-letter. 53508f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian hasPseudoStyle = firstLetterBlock->style()->hasPseudoStyle(FIRST_LETTER) 53518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project && firstLetterBlock->canHaveChildren(); 53528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (hasPseudoStyle) 53538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 53548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* parentBlock = firstLetterBlock->parent(); 53558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (firstLetterBlock->isReplaced() || !parentBlock || parentBlock->firstChild() != firstLetterBlock || 53568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project !parentBlock->isBlockFlow()) 53578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 53588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project firstLetterBlock = parentBlock; 53598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 53608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 53618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!hasPseudoStyle) 53628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 53638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 53648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Drill into inlines looking for our first text child. 53658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* currChild = firstLetterBlock->firstChild(); 53666c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen while (currChild && ((!currChild->isReplaced() && !currChild->isRenderButton() && !currChild->isMenuList()) || currChild->isFloatingOrPositioned()) && !currChild->isText()) { 53678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (currChild->isFloatingOrPositioned()) { 53686c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen if (currChild->style()->styleType() == FIRST_LETTER) { 53696c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen currChild = currChild->firstChild(); 53708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 53716c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen } 53728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project currChild = currChild->nextSibling(); 53738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else 53748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project currChild = currChild->firstChild(); 53758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 53768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 53778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Get list markers out of the way. 53788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (currChild && currChild->isListMarker()) 53798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project currChild = currChild->nextSibling(); 53808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 53818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!currChild) 53828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 53838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 53848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the child already has style, then it has already been created, so we just want 53858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // to update it. 538668513a70bcd92384395513322f1b801e7bf9c729Steve Block if (currChild->parent()->style()->styleType() == FIRST_LETTER) { 538768513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderObject* firstLetter = currChild->parent(); 538868513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderObject* firstLetterContainer = firstLetter->parent(); 538968513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderStyle* pseudoStyle = styleForFirstLetter(firstLetterBlock, firstLetterContainer); 539068513a70bcd92384395513322f1b801e7bf9c729Steve Block 539168513a70bcd92384395513322f1b801e7bf9c729Steve Block if (Node::diff(firstLetter->style(), pseudoStyle) == Node::Detach) { 539268513a70bcd92384395513322f1b801e7bf9c729Steve Block // The first-letter renderer needs to be replaced. Create a new renderer of the right type. 539368513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderObject* newFirstLetter; 539468513a70bcd92384395513322f1b801e7bf9c729Steve Block if (pseudoStyle->display() == INLINE) 539568513a70bcd92384395513322f1b801e7bf9c729Steve Block newFirstLetter = new (renderArena()) RenderInline(document()); 539668513a70bcd92384395513322f1b801e7bf9c729Steve Block else 539768513a70bcd92384395513322f1b801e7bf9c729Steve Block newFirstLetter = new (renderArena()) RenderBlock(document()); 539868513a70bcd92384395513322f1b801e7bf9c729Steve Block newFirstLetter->setStyle(pseudoStyle); 539968513a70bcd92384395513322f1b801e7bf9c729Steve Block 540068513a70bcd92384395513322f1b801e7bf9c729Steve Block // Move the first letter into the new renderer. 540168513a70bcd92384395513322f1b801e7bf9c729Steve Block view()->disableLayoutState(); 540268513a70bcd92384395513322f1b801e7bf9c729Steve Block while (RenderObject* child = firstLetter->firstChild()) { 540368513a70bcd92384395513322f1b801e7bf9c729Steve Block if (child->isText()) 54042daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch toRenderText(child)->removeAndDestroyTextBoxes(); 540568513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetter->removeChild(child); 540668513a70bcd92384395513322f1b801e7bf9c729Steve Block newFirstLetter->addChild(child, 0); 540768513a70bcd92384395513322f1b801e7bf9c729Steve Block } 540881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 540981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch RenderTextFragment* remainingText = 0; 541081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch RenderObject* nextSibling = firstLetter->nextSibling(); 541181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch RenderObject* next = nextSibling; 541281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch while (next) { 541381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (next->isText() && toRenderText(next)->isTextFragment()) { 541481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch remainingText = toRenderTextFragment(next); 541581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch break; 541681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch } 541781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch next = next->nextSibling(); 541881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch } 541981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (remainingText) { 542081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch ASSERT(remainingText->node()->renderer() == remainingText); 542181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch // Replace the old renderer with the new one. 542281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch remainingText->setFirstLetter(newFirstLetter); 542381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch } 542468513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetter->destroy(); 542568513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetter = newFirstLetter; 542681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch firstLetterContainer->addChild(firstLetter, nextSibling); 542768513a70bcd92384395513322f1b801e7bf9c729Steve Block view()->enableLayoutState(); 542868513a70bcd92384395513322f1b801e7bf9c729Steve Block } else 542968513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetter->setStyle(pseudoStyle); 543068513a70bcd92384395513322f1b801e7bf9c729Steve Block 543168513a70bcd92384395513322f1b801e7bf9c729Steve Block for (RenderObject* genChild = firstLetter->firstChild(); genChild; genChild = genChild->nextSibling()) { 54328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (genChild->isText()) 543368513a70bcd92384395513322f1b801e7bf9c729Steve Block genChild->setStyle(pseudoStyle); 54348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 543568513a70bcd92384395513322f1b801e7bf9c729Steve Block 54368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 54378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 54388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 543968513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!currChild->isText() || currChild->isBR()) 544068513a70bcd92384395513322f1b801e7bf9c729Steve Block return; 544168513a70bcd92384395513322f1b801e7bf9c729Steve Block 54428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the child does not already have style, we create it here. 544368513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderObject* firstLetterContainer = currChild->parent(); 54448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 544568513a70bcd92384395513322f1b801e7bf9c729Steve Block // Our layout state is not valid for the repaints we are going to trigger by 544668513a70bcd92384395513322f1b801e7bf9c729Steve Block // adding and removing children of firstLetterContainer. 544768513a70bcd92384395513322f1b801e7bf9c729Steve Block view()->disableLayoutState(); 544868513a70bcd92384395513322f1b801e7bf9c729Steve Block 544968513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderText* textObj = toRenderText(currChild); 545068513a70bcd92384395513322f1b801e7bf9c729Steve Block 545168513a70bcd92384395513322f1b801e7bf9c729Steve Block // Create our pseudo style now that we have our firstLetterContainer determined. 545268513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderStyle* pseudoStyle = styleForFirstLetter(firstLetterBlock, firstLetterContainer); 545368513a70bcd92384395513322f1b801e7bf9c729Steve Block 545468513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderObject* firstLetter = 0; 545568513a70bcd92384395513322f1b801e7bf9c729Steve Block if (pseudoStyle->display() == INLINE) 545668513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetter = new (renderArena()) RenderInline(document()); 545768513a70bcd92384395513322f1b801e7bf9c729Steve Block else 545868513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetter = new (renderArena()) RenderBlock(document()); 545968513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetter->setStyle(pseudoStyle); 546068513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetterContainer->addChild(firstLetter, currChild); 546168513a70bcd92384395513322f1b801e7bf9c729Steve Block 546268513a70bcd92384395513322f1b801e7bf9c729Steve Block // The original string is going to be either a generated content string or a DOM node's 546368513a70bcd92384395513322f1b801e7bf9c729Steve Block // string. We want the original string before it got transformed in case first-letter has 546468513a70bcd92384395513322f1b801e7bf9c729Steve Block // no text-transform or a different text-transform applied to it. 546568513a70bcd92384395513322f1b801e7bf9c729Steve Block RefPtr<StringImpl> oldText = textObj->originalText(); 546668513a70bcd92384395513322f1b801e7bf9c729Steve Block ASSERT(oldText); 546768513a70bcd92384395513322f1b801e7bf9c729Steve Block 546868513a70bcd92384395513322f1b801e7bf9c729Steve Block if (oldText && oldText->length() > 0) { 546968513a70bcd92384395513322f1b801e7bf9c729Steve Block unsigned length = 0; 547068513a70bcd92384395513322f1b801e7bf9c729Steve Block 5471a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Account for leading spaces and punctuation. 5472a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch while (length < oldText->length() && shouldSkipForFirstLetter((*oldText)[length])) 54738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project length++; 54748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5475a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Account for first letter. 547668513a70bcd92384395513322f1b801e7bf9c729Steve Block length++; 5477a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 5478a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Keep looking for whitespace and allowed punctuation, but avoid 5479a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // accumulating just whitespace into the :first-letter. 5480a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch for (unsigned scanLength = length; scanLength < oldText->length(); ++scanLength) { 5481a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch UChar c = (*oldText)[scanLength]; 5482a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 5483a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!shouldSkipForFirstLetter(c)) 5484a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 548568513a70bcd92384395513322f1b801e7bf9c729Steve Block 5486a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (isPunctuationForFirstLetter(c)) 5487a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch length = scanLength + 1; 5488a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 5489a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 5490a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Construct a text fragment for the text after the first letter. 5491a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // This text fragment might be empty. 549268513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderTextFragment* remainingText = 549368513a70bcd92384395513322f1b801e7bf9c729Steve Block new (renderArena()) RenderTextFragment(textObj->node() ? textObj->node() : textObj->document(), oldText.get(), length, oldText->length() - length); 549468513a70bcd92384395513322f1b801e7bf9c729Steve Block remainingText->setStyle(textObj->style()); 549568513a70bcd92384395513322f1b801e7bf9c729Steve Block if (remainingText->node()) 549668513a70bcd92384395513322f1b801e7bf9c729Steve Block remainingText->node()->setRenderer(remainingText); 549768513a70bcd92384395513322f1b801e7bf9c729Steve Block 5498ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch firstLetterContainer->addChild(remainingText, textObj); 549968513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetterContainer->removeChild(textObj); 550068513a70bcd92384395513322f1b801e7bf9c729Steve Block remainingText->setFirstLetter(firstLetter); 550168513a70bcd92384395513322f1b801e7bf9c729Steve Block 550268513a70bcd92384395513322f1b801e7bf9c729Steve Block // construct text fragment for the first letter 550368513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderTextFragment* letter = 550468513a70bcd92384395513322f1b801e7bf9c729Steve Block new (renderArena()) RenderTextFragment(remainingText->node() ? remainingText->node() : remainingText->document(), oldText.get(), 0, length); 550568513a70bcd92384395513322f1b801e7bf9c729Steve Block letter->setStyle(pseudoStyle); 550668513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetter->addChild(letter); 550768513a70bcd92384395513322f1b801e7bf9c729Steve Block 550868513a70bcd92384395513322f1b801e7bf9c729Steve Block textObj->destroy(); 55098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 551068513a70bcd92384395513322f1b801e7bf9c729Steve Block view()->enableLayoutState(); 55118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 55128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 55138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// Helper methods for obtaining the last line, computing line counts and heights for line counts 55148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// (crawling into blocks). 55158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstatic bool shouldCheckLines(RenderObject* obj) 55168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 5517635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return !obj->isFloatingOrPositioned() && !obj->isRunIn() && 55188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project obj->isBlockFlow() && obj->style()->height().isAuto() && 55198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (!obj->isFlexibleBox() || obj->style()->boxOrient() == VERTICAL); 55208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 55218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 55228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstatic RootInlineBox* getLineAtIndex(RenderBlock* block, int i, int& count) 55238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 55248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (block->style()->visibility() == VISIBLE) { 55258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (block->childrenInline()) { 55268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RootInlineBox* box = block->firstRootBox(); box; box = box->nextRootBox()) { 55278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (count++ == i) 55288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return box; 55298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 55328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderObject* obj = block->firstChild(); obj; obj = obj->nextSibling()) { 55338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (shouldCheckLines(obj)) { 55348f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RootInlineBox *box = getLineAtIndex(toRenderBlock(obj), i, count); 55358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (box) 55368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return box; 55378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 55428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 55438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5544635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectstatic int getHeightForLineCount(RenderBlock* block, int l, bool includeBottom, int& count) 55458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 55468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (block->style()->visibility() == VISIBLE) { 55478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (block->childrenInline()) { 55488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RootInlineBox* box = block->firstRootBox(); box; box = box->nextRootBox()) { 55498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (++count == l) 5550231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block return box->lineBottom() + (includeBottom ? (block->borderBottom() + block->paddingBottom()) : 0); 55518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 5554635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderBox* normalFlowChildWithoutLines = 0; 5555635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (RenderBox* obj = block->firstChildBox(); obj; obj = obj->nextSiblingBox()) { 55568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (shouldCheckLines(obj)) { 55578f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int result = getHeightForLineCount(toRenderBlock(obj), l, false, count); 55588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (result != -1) 5559635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return result + obj->y() + (includeBottom ? (block->borderBottom() + block->paddingBottom()) : 0); 55608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5561635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project else if (!obj->isFloatingOrPositioned() && !obj->isRunIn()) 55628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project normalFlowChildWithoutLines = obj; 55638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (normalFlowChildWithoutLines && l == 0) 5565635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return normalFlowChildWithoutLines->y() + normalFlowChildWithoutLines->height(); 55668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 55698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return -1; 55708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 55718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 55728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectRootInlineBox* RenderBlock::lineAtIndex(int i) 55738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 55748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int count = 0; 55758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return getLineAtIndex(this, i, count); 55768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 55778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 55788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectint RenderBlock::lineCount() 55798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 55808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int count = 0; 55818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->visibility() == VISIBLE) { 55828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) 55838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RootInlineBox* box = firstRootBox(); box; box = box->nextRootBox()) 55848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project count++; 55858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 55868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderObject* obj = firstChild(); obj; obj = obj->nextSibling()) 55878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (shouldCheckLines(obj)) 55888f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian count += toRenderBlock(obj)->lineCount(); 55898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return count; 55918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 55928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 55938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectint RenderBlock::heightForLineCount(int l) 55948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 55958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int count = 0; 55968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return getHeightForLineCount(this, l, true, count); 55978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 55988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 55998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::adjustForBorderFit(int x, int& left, int& right) const 56008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 56018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We don't deal with relative positioning. Our assumption is that you shrink to fit the lines without accounting 56028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // for either overflow or translations via relative positioning. 56038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->visibility() == VISIBLE) { 56048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) { 56058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RootInlineBox* box = firstRootBox(); box; box = box->nextRootBox()) { 56068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (box->firstChild()) 560781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch left = min(left, x + static_cast<int>(box->firstChild()->x())); 56088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (box->lastChild()) 560981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch right = max(right, x + static_cast<int>(ceilf(box->lastChild()->logicalRight()))); 56108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 5613635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (RenderBox* obj = firstChildBox(); obj; obj = obj->nextSiblingBox()) { 56148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!obj->isFloatingOrPositioned()) { 56158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (obj->isBlockFlow() && !obj->hasOverflowClip()) 56168f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian toRenderBlock(obj)->adjustForBorderFit(x + obj->x(), left, right); 56178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else if (obj->style()->visibility() == VISIBLE) { 56188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We are a replaced element or some kind of non-block-flow object. 5619635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project left = min(left, x + obj->x()); 5620635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project right = max(right, x + obj->x() + obj->width()); 56218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 56268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_floatingObjects) { 562781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 562881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator end = floatingObjectSet.end(); 562981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 563081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 56318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Only examine the object if our m_shouldPaint flag is set. 56328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (r->m_shouldPaint) { 56332fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int floatLeft = xPositionForFloatIncludingMargin(r) - r->m_renderer->x(); 56348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int floatRight = floatLeft + r->m_renderer->width(); 56358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project left = min(left, floatLeft); 56368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project right = max(right, floatRight); 56378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 56428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 56438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::borderFitAdjust(int& x, int& w) const 56448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 56458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->borderFit() == BorderFitBorder) 56468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 56478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 56488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Walk any normal flow lines to snugly fit. 56498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int left = INT_MAX; 56508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int right = INT_MIN; 56518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int oldWidth = w; 56528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project adjustForBorderFit(0, left, right); 56538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (left != INT_MAX) { 56548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project left -= (borderLeft() + paddingLeft()); 56558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (left > 0) { 56568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project x += left; 56578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project w -= left; 56588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (right != INT_MIN) { 56618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project right += (borderRight() + paddingRight()); 56628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (right < oldWidth) 56638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project w -= (oldWidth - right); 56648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 56668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 56678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::clearTruncation() 56688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 56698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->visibility() == VISIBLE) { 56708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline() && hasMarkupTruncation()) { 56718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project setHasMarkupTruncation(false); 56728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RootInlineBox* box = firstRootBox(); box; box = box->nextRootBox()) 56738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project box->clearTruncation(); 56748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 56768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderObject* obj = firstChild(); obj; obj = obj->nextSibling()) 56778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (shouldCheckLines(obj)) 56788f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian toRenderBlock(obj)->clearTruncation(); 56798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 56818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5682bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsenvoid RenderBlock::setMaxMarginBeforeValues(int pos, int neg) 56838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 568468513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!m_rareData) { 5685a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (pos == RenderBlockRareData::positiveMarginBeforeDefault(this) && neg == RenderBlockRareData::negativeMarginBeforeDefault(this)) 56868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 568768513a70bcd92384395513322f1b801e7bf9c729Steve Block m_rareData = new RenderBlockRareData(this); 56888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5689a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_rareData->m_margins.setPositiveMarginBefore(pos); 5690a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_rareData->m_margins.setNegativeMarginBefore(neg); 56918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 56928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5693bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsenvoid RenderBlock::setMaxMarginAfterValues(int pos, int neg) 56948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 569568513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!m_rareData) { 5696a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (pos == RenderBlockRareData::positiveMarginAfterDefault(this) && neg == RenderBlockRareData::negativeMarginAfterDefault(this)) 569768513a70bcd92384395513322f1b801e7bf9c729Steve Block return; 569868513a70bcd92384395513322f1b801e7bf9c729Steve Block m_rareData = new RenderBlockRareData(this); 569968513a70bcd92384395513322f1b801e7bf9c729Steve Block } 5700a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_rareData->m_margins.setPositiveMarginAfter(pos); 5701a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_rareData->m_margins.setNegativeMarginAfter(neg); 570268513a70bcd92384395513322f1b801e7bf9c729Steve Block} 570368513a70bcd92384395513322f1b801e7bf9c729Steve Block 570468513a70bcd92384395513322f1b801e7bf9c729Steve Blockvoid RenderBlock::setPaginationStrut(int strut) 570568513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 570668513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!m_rareData) { 570768513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!strut) 57088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 570968513a70bcd92384395513322f1b801e7bf9c729Steve Block m_rareData = new RenderBlockRareData(this); 57108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 571168513a70bcd92384395513322f1b801e7bf9c729Steve Block m_rareData->m_paginationStrut = strut; 571268513a70bcd92384395513322f1b801e7bf9c729Steve Block} 571368513a70bcd92384395513322f1b801e7bf9c729Steve Block 5714f05b935882198ccf7d81675736e3aeb089c5113aBen Murdochvoid RenderBlock::setPageLogicalOffset(int logicalOffset) 571568513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 571668513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!m_rareData) { 5717f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!logicalOffset) 571868513a70bcd92384395513322f1b801e7bf9c729Steve Block return; 571968513a70bcd92384395513322f1b801e7bf9c729Steve Block m_rareData = new RenderBlockRareData(this); 572068513a70bcd92384395513322f1b801e7bf9c729Steve Block } 5721f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch m_rareData->m_pageLogicalOffset = logicalOffset; 57228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 57238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 57245f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianvoid RenderBlock::absoluteRects(Vector<IntRect>& rects, int tx, int ty) 57258f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 57268f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // For blocks inside inlines, we go ahead and include margins so that we run right up to the 57278f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // inline boxes above and below us (thus getting merged with them to form a single irregular 57288f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // shape). 5729e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (isAnonymousBlockContinuation()) { 5730bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // FIXME: This is wrong for block-flows that are horizontal. 5731bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // https://bugs.webkit.org/show_bug.cgi?id=46781 5732bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen rects.append(IntRect(tx, ty - collapsedMarginBefore(), 5733bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen width(), height() + collapsedMarginBefore() + collapsedMarginAfter())); 5734e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block continuation()->absoluteRects(rects, 5735e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block tx - x() + inlineElementContinuation()->containingBlock()->x(), 5736e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block ty - y() + inlineElementContinuation()->containingBlock()->y()); 57378f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } else 57388f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian rects.append(IntRect(tx, ty, width(), height())); 57398f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 57408f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57415f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianvoid RenderBlock::absoluteQuads(Vector<FloatQuad>& quads) 57428f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 57438f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // For blocks inside inlines, we go ahead and include margins so that we run right up to the 57448f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // inline boxes above and below us (thus getting merged with them to form a single irregular 57458f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // shape). 5746e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (isAnonymousBlockContinuation()) { 5747bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // FIXME: This is wrong for block-flows that are horizontal. 5748bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // https://bugs.webkit.org/show_bug.cgi?id=46781 5749bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen FloatRect localRect(0, -collapsedMarginBefore(), 5750bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen width(), height() + collapsedMarginBefore() + collapsedMarginAfter()); 57518f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian quads.append(localToAbsoluteQuad(localRect)); 5752e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block continuation()->absoluteQuads(quads); 57538f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } else 57548f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian quads.append(RenderBox::localToAbsoluteQuad(FloatRect(0, 0, width(), height()))); 57558f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 57568f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57578f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianIntRect RenderBlock::rectWithOutlineForRepaint(RenderBoxModelObject* repaintContainer, int outlineWidth) 57588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 57598f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian IntRect r(RenderBox::rectWithOutlineForRepaint(repaintContainer, outlineWidth)); 5760e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (isAnonymousBlockContinuation()) 5761bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen r.inflateY(collapsedMarginBefore()); // FIXME: This is wrong for block-flows that are horizontal. 57628f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return r; 57638f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 57648f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57658f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianRenderObject* RenderBlock::hoverAncestor() const 57668f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 5767e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block return isAnonymousBlockContinuation() ? continuation() : RenderBox::hoverAncestor(); 57688f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 57698f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57708f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::updateDragState(bool dragOn) 57718f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 57728f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBox::updateDragState(dragOn); 5773e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (continuation()) 5774e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block continuation()->updateDragState(dragOn); 57758f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 57768f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57778f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianRenderStyle* RenderBlock::outlineStyleForRepaint() const 57788f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 5779e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block return isAnonymousBlockContinuation() ? continuation()->style() : style(); 57808f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 57818f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57828f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::childBecameNonInline(RenderObject*) 57838f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 57848f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian makeChildrenNonInline(); 57858f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (isAnonymousBlock() && parent() && parent()->isRenderBlock()) 57868f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian toRenderBlock(parent())->removeLeftoverAnonymousBlock(this); 57878f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // |this| may be dead here 57888f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 57898f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57908f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::updateHitTestResult(HitTestResult& result, const IntPoint& point) 57918f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 57928f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (result.innerNode()) 57938f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return; 57948f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57958f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian Node* n = node(); 5796e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (isAnonymousBlockContinuation()) 57978f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // We are in the margins of block elements that are part of a continuation. In 5798e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block // this case we're actually still inside the enclosing element that was 57998f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // split. Go ahead and set our inner node accordingly. 5800e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block n = continuation()->node(); 58018f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58028f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (n) { 58038f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian result.setInnerNode(n); 58048f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!result.innerNonSharedNode()) 58058f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian result.setInnerNonSharedNode(n); 58068f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian result.setLocalPoint(point); 58078f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 58088f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 58098f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58108f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianIntRect RenderBlock::localCaretRect(InlineBox* inlineBox, int caretOffset, int* extraWidthToEndOfLine) 58118f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 58128f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // Do the normal calculation in most cases. 58138f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (firstChild()) 58148f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return RenderBox::localCaretRect(inlineBox, caretOffset, extraWidthToEndOfLine); 58158f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58168f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // This is a special case: 58178f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // The element is not an inline element, and it's empty. So we have to 58188f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // calculate a fake position to indicate where objects are to be inserted. 58198f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58208f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // FIXME: This does not take into account either :first-line or :first-letter 58218f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // However, as soon as some content is entered, the line boxes will be 58228f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // constructed and this kludge is not called any more. So only the caret size 58238f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // of an empty :first-line'd block is wrong. I think we can live with that. 58248f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderStyle* currentStyle = firstLineStyle(); 5825a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int height = lineHeight(true, currentStyle->isHorizontalWritingMode() ? HorizontalLine : VerticalLine); 58268f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58278f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian enum CaretAlignment { alignLeft, alignRight, alignCenter }; 58288f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58298f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian CaretAlignment alignment = alignLeft; 58308f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58318f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian switch (currentStyle->textAlign()) { 58328f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case TAAUTO: 58338f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case JUSTIFY: 5834a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!currentStyle->isLeftToRightDirection()) 58358f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian alignment = alignRight; 58368f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian break; 58378f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case LEFT: 58388f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case WEBKIT_LEFT: 58398f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian break; 58408f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case CENTER: 58418f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case WEBKIT_CENTER: 58428f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian alignment = alignCenter; 58438f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian break; 58448f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case RIGHT: 58458f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case WEBKIT_RIGHT: 58468f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian alignment = alignRight; 58478f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian break; 58482bde8e466a4451c7319e3a072d118917957d6554Steve Block case TASTART: 58492bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!currentStyle->isLeftToRightDirection()) 58502bde8e466a4451c7319e3a072d118917957d6554Steve Block alignment = alignRight; 58512bde8e466a4451c7319e3a072d118917957d6554Steve Block break; 58522bde8e466a4451c7319e3a072d118917957d6554Steve Block case TAEND: 58532bde8e466a4451c7319e3a072d118917957d6554Steve Block if (currentStyle->isLeftToRightDirection()) 58542bde8e466a4451c7319e3a072d118917957d6554Steve Block alignment = alignRight; 58552bde8e466a4451c7319e3a072d118917957d6554Steve Block break; 58568f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 58578f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int x = borderLeft() + paddingLeft(); 58598f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int w = width(); 58608f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58618f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian switch (alignment) { 58628f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case alignLeft: 58638f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian break; 58648f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case alignCenter: 58658f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian x = (x + w - (borderRight() + paddingRight())) / 2; 58668f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian break; 58678f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case alignRight: 58685f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian x = w - (borderRight() + paddingRight()) - caretWidth; 58698f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian break; 58708f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 58718f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58728f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (extraWidthToEndOfLine) { 58738f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (isRenderBlock()) { 58748f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian *extraWidthToEndOfLine = w - (x + caretWidth); 58758f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } else { 58768f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // FIXME: This code looks wrong. 58778f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // myRight and containerRight are set up, but then clobbered. 58788f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // So *extraWidthToEndOfLine will always be 0 here. 58798f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58808f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int myRight = x + caretWidth; 58818f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // FIXME: why call localToAbsoluteForContent() twice here, too? 58828f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian FloatPoint absRightPoint = localToAbsolute(FloatPoint(myRight, 0)); 58838f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 5884bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int containerRight = containingBlock()->x() + containingBlockLogicalWidthForContent(); 58858f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian FloatPoint absContainerPoint = localToAbsolute(FloatPoint(containerRight, 0)); 58868f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58878f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian *extraWidthToEndOfLine = absContainerPoint.x() - absRightPoint.x(); 58888f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 58898f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 58908f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58918f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int y = paddingTop() + borderTop(); 58928f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58938f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return IntRect(x, y, caretWidth, height); 58948f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 58958f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 5896d0825bca7fe65beaee391d30da42e937db621564Steve Blockvoid RenderBlock::addFocusRingRects(Vector<IntRect>& rects, int tx, int ty) 58978f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 58988f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // For blocks inside inlines, we go ahead and include margins so that we run right up to the 58998f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // inline boxes above and below us (thus getting merged with them to form a single irregular 59008f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // shape). 5901e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (inlineElementContinuation()) { 59028f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // FIXME: This check really isn't accurate. 5903e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block bool nextInlineHasLineBox = inlineElementContinuation()->firstLineBox(); 59048f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // FIXME: This is wrong. The principal renderer may not be the continuation preceding this block. 5905bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // FIXME: This is wrong for block-flows that are horizontal. 5906bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // https://bugs.webkit.org/show_bug.cgi?id=46781 5907e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block bool prevInlineHasLineBox = toRenderInline(inlineElementContinuation()->node()->renderer())->firstLineBox(); 5908bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int topMargin = prevInlineHasLineBox ? collapsedMarginBefore() : 0; 5909bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int bottomMargin = nextInlineHasLineBox ? collapsedMarginAfter() : 0; 5910d0825bca7fe65beaee391d30da42e937db621564Steve Block IntRect rect(tx, ty - topMargin, width(), height() + topMargin + bottomMargin); 5911d0825bca7fe65beaee391d30da42e937db621564Steve Block if (!rect.isEmpty()) 5912d0825bca7fe65beaee391d30da42e937db621564Steve Block rects.append(rect); 5913d0825bca7fe65beaee391d30da42e937db621564Steve Block } else if (width() && height()) 5914d0825bca7fe65beaee391d30da42e937db621564Steve Block rects.append(IntRect(tx, ty, width(), height())); 59158f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 59168f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!hasOverflowClip() && !hasControlClip()) { 5917231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block for (RootInlineBox* curr = firstRootBox(); curr; curr = curr->nextRootBox()) { 591881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch int top = max(curr->lineTop(), curr->logicalTop()); 591981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch int bottom = min(curr->lineBottom(), curr->logicalTop() + curr->logicalHeight()); 5920bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen IntRect rect(tx + curr->x(), ty + top, curr->logicalWidth(), bottom - top); 5921d0825bca7fe65beaee391d30da42e937db621564Steve Block if (!rect.isEmpty()) 5922d0825bca7fe65beaee391d30da42e937db621564Steve Block rects.append(rect); 5923231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 59248f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 59258f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) { 59268f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!curr->isText() && !curr->isListMarker() && curr->isBox()) { 59278f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBox* box = toRenderBox(curr); 59288f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian FloatPoint pos; 59298f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // FIXME: This doesn't work correctly with transforms. 59308f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (box->layer()) 59318f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian pos = curr->localToAbsolute(); 59328f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian else 59338f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian pos = FloatPoint(tx + box->x(), ty + box->y()); 5934d0825bca7fe65beaee391d30da42e937db621564Steve Block box->addFocusRingRects(rects, pos.x(), pos.y()); 59358f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 59368f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 59378f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 59388f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 5939e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (inlineElementContinuation()) 5940e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block inlineElementContinuation()->addFocusRingRects(rects, 5941e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block tx - x() + inlineElementContinuation()->containingBlock()->x(), 5942e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block ty - y() + inlineElementContinuation()->containingBlock()->y()); 59438f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 59448f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 5945231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve BlockRenderBlock* RenderBlock::createAnonymousBlock(bool isFlexibleBox) const 59468f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 59472bde8e466a4451c7319e3a072d118917957d6554Steve Block RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyle(style()); 59488f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 5949231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block RenderBlock* newBox = 0; 5950231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (isFlexibleBox) { 5951231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block newStyle->setDisplay(BOX); 5952231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block newBox = new (renderArena()) RenderFlexibleBox(document() /* anonymous box */); 5953231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } else { 5954231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block newStyle->setDisplay(BLOCK); 5955231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block newBox = new (renderArena()) RenderBlock(document() /* anonymous box */); 5956231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 5957231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 59588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian newBox->setStyle(newStyle.release()); 59598f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return newBox; 59608f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 59618f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 59625af96e2c7b73ebc627c6894727826a7576d31758Leon ClarkeRenderBlock* RenderBlock::createAnonymousBlockWithSameTypeAs(RenderBlock* otherAnonymousBlock) const 59635af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 59645af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (otherAnonymousBlock->isAnonymousColumnsBlock()) 59655af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return createAnonymousColumnsBlock(); 59665af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (otherAnonymousBlock->isAnonymousColumnSpanBlock()) 59675af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return createAnonymousColumnSpanBlock(); 59685af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return createAnonymousBlock(otherAnonymousBlock->style()->display() == BOX); 59695af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 59705af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 59715af96e2c7b73ebc627c6894727826a7576d31758Leon ClarkeRenderBlock* RenderBlock::createAnonymousColumnsBlock() const 59725af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 59732bde8e466a4451c7319e3a072d118917957d6554Steve Block RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyle(style()); 59745af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newStyle->inheritColumnPropertiesFrom(style()); 59755af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newStyle->setDisplay(BLOCK); 59765af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 59775af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* newBox = new (renderArena()) RenderBlock(document() /* anonymous box */); 59785af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newBox->setStyle(newStyle.release()); 59795af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return newBox; 59805af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 59815af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 59825af96e2c7b73ebc627c6894727826a7576d31758Leon ClarkeRenderBlock* RenderBlock::createAnonymousColumnSpanBlock() const 59835af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 59842bde8e466a4451c7319e3a072d118917957d6554Steve Block RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyle(style()); 59855af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newStyle->setColumnSpan(true); 59865af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newStyle->setDisplay(BLOCK); 59875af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 59885af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* newBox = new (renderArena()) RenderBlock(document() /* anonymous box */); 59895af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newBox->setStyle(newStyle.release()); 59905af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return newBox; 59915af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 59925af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 59932fc2651226baac27029e38c9d6ef883fa32084dbSteve Blockint RenderBlock::nextPageLogicalTop(int logicalOffset) const 599468513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 599568513a70bcd92384395513322f1b801e7bf9c729Steve Block LayoutState* layoutState = view()->layoutState(); 5996f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!layoutState->m_pageLogicalHeight) 59972fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return logicalOffset; 599868513a70bcd92384395513322f1b801e7bf9c729Steve Block 59992fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // The logicalOffset is in our coordinate space. We can add in our pushed offset. 6000f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int pageLogicalHeight = layoutState->m_pageLogicalHeight; 60012fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntSize delta = layoutState->m_layoutOffset - layoutState->m_pageOffset; 60022bde8e466a4451c7319e3a072d118917957d6554Steve Block int offset = isHorizontalWritingMode() ? delta.height() : delta.width(); 60032fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int remainingLogicalHeight = (pageLogicalHeight - (offset + logicalOffset) % pageLogicalHeight) % pageLogicalHeight; 60042fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return logicalOffset + remainingLogicalHeight; 600568513a70bcd92384395513322f1b801e7bf9c729Steve Block} 600668513a70bcd92384395513322f1b801e7bf9c729Steve Block 600768513a70bcd92384395513322f1b801e7bf9c729Steve Blockstatic bool inNormalFlow(RenderBox* child) 600868513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 600968513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderBlock* curr = child->containingBlock(); 601068513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderBlock* initialBlock = child->view(); 601168513a70bcd92384395513322f1b801e7bf9c729Steve Block while (curr && curr != initialBlock) { 601268513a70bcd92384395513322f1b801e7bf9c729Steve Block if (curr->hasColumns()) 601368513a70bcd92384395513322f1b801e7bf9c729Steve Block return true; 601468513a70bcd92384395513322f1b801e7bf9c729Steve Block if (curr->isFloatingOrPositioned()) 601568513a70bcd92384395513322f1b801e7bf9c729Steve Block return false; 601668513a70bcd92384395513322f1b801e7bf9c729Steve Block curr = curr->containingBlock(); 601768513a70bcd92384395513322f1b801e7bf9c729Steve Block } 601868513a70bcd92384395513322f1b801e7bf9c729Steve Block return true; 601968513a70bcd92384395513322f1b801e7bf9c729Steve Block} 602068513a70bcd92384395513322f1b801e7bf9c729Steve Block 60212fc2651226baac27029e38c9d6ef883fa32084dbSteve Blockint RenderBlock::applyBeforeBreak(RenderBox* child, int logicalOffset) 602268513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 602368513a70bcd92384395513322f1b801e7bf9c729Steve Block // FIXME: Add page break checking here when we support printing. 602468513a70bcd92384395513322f1b801e7bf9c729Steve Block bool checkColumnBreaks = view()->layoutState()->isPaginatingColumns(); 6025f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch bool checkPageBreaks = !checkColumnBreaks && view()->layoutState()->m_pageLogicalHeight; // FIXME: Once columns can print we have to check this. 602668513a70bcd92384395513322f1b801e7bf9c729Steve Block bool checkBeforeAlways = (checkColumnBreaks && child->style()->columnBreakBefore() == PBALWAYS) || (checkPageBreaks && child->style()->pageBreakBefore() == PBALWAYS); 602768513a70bcd92384395513322f1b801e7bf9c729Steve Block if (checkBeforeAlways && inNormalFlow(child)) { 602868513a70bcd92384395513322f1b801e7bf9c729Steve Block if (checkColumnBreaks) 60292fc2651226baac27029e38c9d6ef883fa32084dbSteve Block view()->layoutState()->addForcedColumnBreak(logicalOffset); 60302fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return nextPageLogicalTop(logicalOffset); 603168513a70bcd92384395513322f1b801e7bf9c729Steve Block } 60322fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return logicalOffset; 603368513a70bcd92384395513322f1b801e7bf9c729Steve Block} 603468513a70bcd92384395513322f1b801e7bf9c729Steve Block 60352fc2651226baac27029e38c9d6ef883fa32084dbSteve Blockint RenderBlock::applyAfterBreak(RenderBox* child, int logicalOffset, MarginInfo& marginInfo) 603668513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 603768513a70bcd92384395513322f1b801e7bf9c729Steve Block // FIXME: Add page break checking here when we support printing. 603868513a70bcd92384395513322f1b801e7bf9c729Steve Block bool checkColumnBreaks = view()->layoutState()->isPaginatingColumns(); 6039f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch bool checkPageBreaks = !checkColumnBreaks && view()->layoutState()->m_pageLogicalHeight; // FIXME: Once columns can print we have to check this. 604068513a70bcd92384395513322f1b801e7bf9c729Steve Block bool checkAfterAlways = (checkColumnBreaks && child->style()->columnBreakAfter() == PBALWAYS) || (checkPageBreaks && child->style()->pageBreakAfter() == PBALWAYS); 604168513a70bcd92384395513322f1b801e7bf9c729Steve Block if (checkAfterAlways && inNormalFlow(child)) { 6042bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen marginInfo.setMarginAfterQuirk(true); // Cause margins to be discarded for any following content. 604368513a70bcd92384395513322f1b801e7bf9c729Steve Block if (checkColumnBreaks) 60442fc2651226baac27029e38c9d6ef883fa32084dbSteve Block view()->layoutState()->addForcedColumnBreak(logicalOffset); 60452fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return nextPageLogicalTop(logicalOffset); 604668513a70bcd92384395513322f1b801e7bf9c729Steve Block } 60472fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return logicalOffset; 604868513a70bcd92384395513322f1b801e7bf9c729Steve Block} 604968513a70bcd92384395513322f1b801e7bf9c729Steve Block 60502fc2651226baac27029e38c9d6ef883fa32084dbSteve Blockint RenderBlock::adjustForUnsplittableChild(RenderBox* child, int logicalOffset, bool includeMargins) 605168513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 605268513a70bcd92384395513322f1b801e7bf9c729Steve Block bool isUnsplittable = child->isReplaced() || child->scrollsOverflow(); 605368513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!isUnsplittable) 60542fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return logicalOffset; 60552fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int childLogicalHeight = logicalHeightForChild(child) + (includeMargins ? marginBeforeForChild(child) + marginAfterForChild(child) : 0); 605668513a70bcd92384395513322f1b801e7bf9c729Steve Block LayoutState* layoutState = view()->layoutState(); 605768513a70bcd92384395513322f1b801e7bf9c729Steve Block if (layoutState->m_columnInfo) 60582fc2651226baac27029e38c9d6ef883fa32084dbSteve Block layoutState->m_columnInfo->updateMinimumColumnHeight(childLogicalHeight); 6059f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int pageLogicalHeight = layoutState->m_pageLogicalHeight; 60602fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (!pageLogicalHeight || childLogicalHeight > pageLogicalHeight) 60612fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return logicalOffset; 60622fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntSize delta = layoutState->m_layoutOffset - layoutState->m_pageOffset; 60632bde8e466a4451c7319e3a072d118917957d6554Steve Block int offset = isHorizontalWritingMode() ? delta.height() : delta.width(); 60642fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int remainingLogicalHeight = (pageLogicalHeight - (offset + logicalOffset) % pageLogicalHeight) % pageLogicalHeight; 60652fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (remainingLogicalHeight < childLogicalHeight) 60662fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return logicalOffset + remainingLogicalHeight; 60672fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return logicalOffset; 606868513a70bcd92384395513322f1b801e7bf9c729Steve Block} 606968513a70bcd92384395513322f1b801e7bf9c729Steve Block 607068513a70bcd92384395513322f1b801e7bf9c729Steve Blockvoid RenderBlock::adjustLinePositionForPagination(RootInlineBox* lineBox, int& delta) 607168513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 607268513a70bcd92384395513322f1b801e7bf9c729Steve Block // FIXME: For now we paginate using line overflow. This ensures that lines don't overlap at all when we 607368513a70bcd92384395513322f1b801e7bf9c729Steve Block // put a strut between them for pagination purposes. However, this really isn't the desired rendering, since 607468513a70bcd92384395513322f1b801e7bf9c729Steve Block // the line on the top of the next page will appear too far down relative to the same kind of line at the top 607568513a70bcd92384395513322f1b801e7bf9c729Steve Block // of the first column. 607668513a70bcd92384395513322f1b801e7bf9c729Steve Block // 607768513a70bcd92384395513322f1b801e7bf9c729Steve Block // The rendering we would like to see is one where the lineTop is at the top of the column, and any line overflow 607868513a70bcd92384395513322f1b801e7bf9c729Steve Block // simply spills out above the top of the column. This effect would match what happens at the top of the first column. 607968513a70bcd92384395513322f1b801e7bf9c729Steve Block // We can't achieve this rendering, however, until we stop columns from clipping to the column bounds (thus allowing 608068513a70bcd92384395513322f1b801e7bf9c729Steve Block // for overflow to occur), and then cache visible overflow for each column rect. 608168513a70bcd92384395513322f1b801e7bf9c729Steve Block // 608268513a70bcd92384395513322f1b801e7bf9c729Steve Block // Furthermore, the paint we have to do when a column has overflow has to be special. We need to exclude 608368513a70bcd92384395513322f1b801e7bf9c729Steve Block // content that paints in a previous column (and content that paints in the following column). 608468513a70bcd92384395513322f1b801e7bf9c729Steve Block // 608568513a70bcd92384395513322f1b801e7bf9c729Steve Block // FIXME: Another problem with simply moving lines is that the available line width may change (because of floats). 608668513a70bcd92384395513322f1b801e7bf9c729Steve Block // Technically if the location we move the line to has a different line width than our old position, then we need to dirty the 608768513a70bcd92384395513322f1b801e7bf9c729Steve Block // line and all following lines. 608868513a70bcd92384395513322f1b801e7bf9c729Steve Block LayoutState* layoutState = view()->layoutState(); 6089f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int pageLogicalHeight = layoutState->m_pageLogicalHeight; 60902daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch IntRect logicalVisualOverflow = lineBox->logicalVisualOverflowRect(lineBox->lineTop(), lineBox->lineBottom()); 60912daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch int logicalOffset = logicalVisualOverflow.y(); 60922daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch int lineHeight = logicalVisualOverflow.maxY() - logicalOffset; 609368513a70bcd92384395513322f1b801e7bf9c729Steve Block if (layoutState->m_columnInfo) 609468513a70bcd92384395513322f1b801e7bf9c729Steve Block layoutState->m_columnInfo->updateMinimumColumnHeight(lineHeight); 60952fc2651226baac27029e38c9d6ef883fa32084dbSteve Block logicalOffset += delta; 609668513a70bcd92384395513322f1b801e7bf9c729Steve Block lineBox->setPaginationStrut(0); 6097f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!pageLogicalHeight || lineHeight > pageLogicalHeight) 609868513a70bcd92384395513322f1b801e7bf9c729Steve Block return; 60992fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntSize offsetDelta = layoutState->m_layoutOffset - layoutState->m_pageOffset; 61002bde8e466a4451c7319e3a072d118917957d6554Steve Block int offset = isHorizontalWritingMode() ? offsetDelta.height() : offsetDelta.width(); 61012fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int remainingLogicalHeight = pageLogicalHeight - (offset + logicalOffset) % pageLogicalHeight; 61022fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (remainingLogicalHeight < lineHeight) { 61032fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int totalLogicalHeight = lineHeight + max(0, logicalOffset); 61042fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (lineBox == firstRootBox() && totalLogicalHeight < pageLogicalHeight && !isPositioned() && !isTableCell()) 61052fc2651226baac27029e38c9d6ef883fa32084dbSteve Block setPaginationStrut(remainingLogicalHeight + max(0, logicalOffset)); 610668513a70bcd92384395513322f1b801e7bf9c729Steve Block else { 61072fc2651226baac27029e38c9d6ef883fa32084dbSteve Block delta += remainingLogicalHeight; 61082fc2651226baac27029e38c9d6ef883fa32084dbSteve Block lineBox->setPaginationStrut(remainingLogicalHeight); 610968513a70bcd92384395513322f1b801e7bf9c729Steve Block } 611068513a70bcd92384395513322f1b801e7bf9c729Steve Block } 611168513a70bcd92384395513322f1b801e7bf9c729Steve Block} 6112a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6113a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::collapsedMarginBeforeForChild(RenderBox* child) const 6114a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 6115a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // If the child has the same directionality as we do, then we can just return its 6116a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // collapsed margin. 6117a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!child->isWritingModeRoot()) 6118a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->collapsedMarginBefore(); 6119a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6120a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The child has a different directionality. If the child is parallel, then it's just 6121a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // flipped relative to us. We can use the collapsed margin for the opposite edge. 61222bde8e466a4451c7319e3a072d118917957d6554Steve Block if (child->isHorizontalWritingMode() == isHorizontalWritingMode()) 6123a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->collapsedMarginAfter(); 6124a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6125a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The child is perpendicular to us, which means its margins don't collapse but are on the 6126a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // "logical left/right" sides of the child box. We can just return the raw margin in this case. 6127a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return marginBeforeForChild(child); 6128a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6129a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6130a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::collapsedMarginAfterForChild(RenderBox* child) const 6131a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 6132a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // If the child has the same directionality as we do, then we can just return its 6133a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // collapsed margin. 6134a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!child->isWritingModeRoot()) 6135a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->collapsedMarginAfter(); 6136a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6137a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The child has a different directionality. If the child is parallel, then it's just 6138a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // flipped relative to us. We can use the collapsed margin for the opposite edge. 61392bde8e466a4451c7319e3a072d118917957d6554Steve Block if (child->isHorizontalWritingMode() == isHorizontalWritingMode()) 6140a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->collapsedMarginBefore(); 6141a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6142a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The child is perpendicular to us, which means its margins don't collapse but are on the 6143a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // "logical left/right" side of the child box. We can just return the raw margin in this case. 6144a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return marginAfterForChild(child); 6145a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6146a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6147a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::marginBeforeForChild(RenderBoxModelObject* child) const 6148a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 6149a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch switch (style()->writingMode()) { 6150a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case TopToBottomWritingMode: 6151a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginTop(); 6152a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case BottomToTopWritingMode: 6153a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginBottom(); 6154a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case LeftToRightWritingMode: 6155a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginLeft(); 6156a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case RightToLeftWritingMode: 6157a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginRight(); 6158a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6159a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch ASSERT_NOT_REACHED(); 6160a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginTop(); 6161a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6162a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6163a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::marginAfterForChild(RenderBoxModelObject* child) const 6164a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 6165a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch switch (style()->writingMode()) { 6166a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case TopToBottomWritingMode: 6167a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginBottom(); 6168a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case BottomToTopWritingMode: 6169a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginTop(); 6170a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case LeftToRightWritingMode: 6171a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginRight(); 6172a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case RightToLeftWritingMode: 6173a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginLeft(); 6174a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6175a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch ASSERT_NOT_REACHED(); 6176a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginBottom(); 6177a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6178a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6179a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::marginStartForChild(RenderBoxModelObject* child) const 6180a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 61812bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 6182a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return style()->isLeftToRightDirection() ? child->marginLeft() : child->marginRight(); 6183a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return style()->isLeftToRightDirection() ? child->marginTop() : child->marginBottom(); 6184a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6185a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6186a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::marginEndForChild(RenderBoxModelObject* child) const 6187a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 61882bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 6189a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return style()->isLeftToRightDirection() ? child->marginRight() : child->marginLeft(); 6190a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return style()->isLeftToRightDirection() ? child->marginBottom() : child->marginTop(); 6191a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6192a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6193a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::setMarginStartForChild(RenderBox* child, int margin) 6194a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 61952bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) { 6196a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (style()->isLeftToRightDirection()) 6197a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginLeft(margin); 6198a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch else 6199a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginRight(margin); 6200a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else { 6201a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (style()->isLeftToRightDirection()) 6202a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginTop(margin); 6203a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch else 6204a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginBottom(margin); 6205a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6206a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6207a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6208a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::setMarginEndForChild(RenderBox* child, int margin) 6209a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 62102bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) { 6211a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (style()->isLeftToRightDirection()) 6212a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginRight(margin); 6213a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch else 6214a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginLeft(margin); 6215a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else { 6216a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (style()->isLeftToRightDirection()) 6217a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginBottom(margin); 6218a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch else 6219a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginTop(margin); 6220a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6221a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6222a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6223a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::setMarginBeforeForChild(RenderBox* child, int margin) 6224a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 6225a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch switch (style()->writingMode()) { 6226a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case TopToBottomWritingMode: 6227a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginTop(margin); 6228a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 6229a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case BottomToTopWritingMode: 6230a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginBottom(margin); 6231a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 6232a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case LeftToRightWritingMode: 6233a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginLeft(margin); 6234a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 6235a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case RightToLeftWritingMode: 6236a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginRight(margin); 6237a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 6238a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6239a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6240a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6241a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::setMarginAfterForChild(RenderBox* child, int margin) 6242a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 6243a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch switch (style()->writingMode()) { 6244a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case TopToBottomWritingMode: 6245a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginBottom(margin); 6246a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 6247a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case BottomToTopWritingMode: 6248a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginTop(margin); 6249a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 6250a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case LeftToRightWritingMode: 6251a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginRight(margin); 6252a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 6253a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case RightToLeftWritingMode: 6254a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginLeft(margin); 6255a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 6256a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6257a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6258a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6259a94275402997c11dd2e778633dacf4b7e630a35dBen MurdochRenderBlock::MarginValues RenderBlock::marginValuesForChild(RenderBox* child) 6260a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 6261a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int childBeforePositive = 0; 6262a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int childBeforeNegative = 0; 6263a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int childAfterPositive = 0; 6264a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int childAfterNegative = 0; 6265a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6266a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int beforeMargin = 0; 6267a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int afterMargin = 0; 6268a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6269a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch RenderBlock* childRenderBlock = child->isRenderBlock() ? toRenderBlock(child) : 0; 6270a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6271a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // If the child has the same directionality as we do, then we can just return its 6272a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // margins in the same direction. 6273a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!child->isWritingModeRoot()) { 6274a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (childRenderBlock) { 6275a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBeforePositive = childRenderBlock->maxPositiveMarginBefore(); 6276a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBeforeNegative = childRenderBlock->maxNegativeMarginBefore(); 6277a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childAfterPositive = childRenderBlock->maxPositiveMarginAfter(); 6278a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childAfterNegative = childRenderBlock->maxNegativeMarginAfter(); 6279a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else { 6280a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch beforeMargin = child->marginBefore(); 6281a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch afterMargin = child->marginAfter(); 6282a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 62832bde8e466a4451c7319e3a072d118917957d6554Steve Block } else if (child->isHorizontalWritingMode() == isHorizontalWritingMode()) { 6284a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The child has a different directionality. If the child is parallel, then it's just 6285a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // flipped relative to us. We can use the margins for the opposite edges. 6286a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (childRenderBlock) { 6287a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBeforePositive = childRenderBlock->maxPositiveMarginAfter(); 6288a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBeforeNegative = childRenderBlock->maxNegativeMarginAfter(); 6289a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childAfterPositive = childRenderBlock->maxPositiveMarginBefore(); 6290a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childAfterNegative = childRenderBlock->maxNegativeMarginBefore(); 6291a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else { 6292a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch beforeMargin = child->marginAfter(); 6293a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch afterMargin = child->marginBefore(); 6294a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6295a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else { 6296a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The child is perpendicular to us, which means its margins don't collapse but are on the 6297a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // "logical left/right" sides of the child box. We can just return the raw margin in this case. 6298a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch beforeMargin = marginBeforeForChild(child); 6299a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch afterMargin = marginAfterForChild(child); 6300a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6301a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6302a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Resolve uncollapsing margins into their positive/negative buckets. 6303a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (beforeMargin) { 6304a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (beforeMargin > 0) 6305a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBeforePositive = beforeMargin; 6306a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch else 6307a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBeforeNegative = -beforeMargin; 6308a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6309a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (afterMargin) { 6310a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (afterMargin > 0) 6311a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childAfterPositive = afterMargin; 6312a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch else 6313a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childAfterNegative = -afterMargin; 6314a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6315a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6316a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return MarginValues(childBeforePositive, childBeforeNegative, childAfterPositive, childAfterNegative); 6317a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6318a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 63198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectconst char* RenderBlock::renderName() const 63208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 63218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isBody()) 63228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return "RenderBody"; // FIXME: Temporary hack until we know that the regression tests pass. 63238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 63248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isFloating()) 63258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return "RenderBlock (floating)"; 63268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isPositioned()) 63278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return "RenderBlock (positioned)"; 63285af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (isAnonymousColumnsBlock()) 63295af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return "RenderBlock (anonymous multi-column)"; 63305af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (isAnonymousColumnSpanBlock()) 63315af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return "RenderBlock (anonymous multi-column span)"; 63328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isAnonymousBlock()) 63338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return "RenderBlock (anonymous)"; 63348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else if (isAnonymous()) 63358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return "RenderBlock (generated)"; 63368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isRelPositioned()) 63378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return "RenderBlock (relative positioned)"; 63388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isRunIn()) 63398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return "RenderBlock (run-in)"; 63408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return "RenderBlock"; 63418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 63428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 634381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochinline void RenderBlock::FloatingObjects::clear() 634481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch{ 634581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_set.clear(); 634681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_leftObjectsCount = 0; 634781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_rightObjectsCount = 0; 634881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch} 634981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 635081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochinline void RenderBlock::FloatingObjects::increaseObjectsCount(FloatingObject::Type type) 635181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch{ 635281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (type == FloatingObject::FloatLeft) 635381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_leftObjectsCount++; 635481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch else 635581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_rightObjectsCount++; 635681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch} 635781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 635881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochinline void RenderBlock::FloatingObjects::decreaseObjectsCount(FloatingObject::Type type) 635981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch{ 636081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (type == FloatingObject::FloatLeft) 636181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_leftObjectsCount--; 636281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch else 636381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_rightObjectsCount--; 636481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch} 636581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 63668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} // namespace WebCore 6367