RenderBlock.cpp revision 9a26d18f4c7e98b479be700575d003f873214550
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 } 1948f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } else if (isInline() && 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()); 446cad810f21b803229eb11403f9209855525a25d57Steve Block } 447cad810f21b803229eb11403f9209855525a25d57Steve Block cloneBlock->setChildrenInline(childrenInline()); 448cad810f21b803229eb11403f9209855525a25d57Steve Block return cloneBlock; 449545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch} 450545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 451545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdochvoid RenderBlock::splitBlocks(RenderBlock* fromBlock, RenderBlock* toBlock, 452545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* middleBlock, 453545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderObject* beforeChild, RenderBoxModelObject* oldCont) 454545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch{ 455545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Create a clone of this inline. 456cad810f21b803229eb11403f9209855525a25d57Steve Block RenderBlock* cloneBlock = clone(); 457cad810f21b803229eb11403f9209855525a25d57Steve Block if (!isAnonymousBlock()) 4584a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch cloneBlock->setContinuation(oldCont); 459545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 460545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Now take all of the children from beforeChild to the end and remove 461545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // them from |this| and place them in the clone. 462545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (!beforeChild && isAfterContent(lastChild())) 463545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch beforeChild = lastChild(); 464545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch moveChildrenTo(cloneBlock, beforeChild, 0); 465545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 466545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Hook |clone| up as the continuation of the middle block. 4674a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch if (!cloneBlock->isAnonymousBlock()) 4684a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch middleBlock->setContinuation(cloneBlock); 469545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 470545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // We have been reparented and are now under the fromBlock. We need 471545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // to walk up our block parent chain until we hit the containing anonymous columns block. 472545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Once we hit the anonymous columns block we're done. 473545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBoxModelObject* curr = toRenderBoxModelObject(parent()); 474545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBoxModelObject* currChild = this; 475545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 476545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch while (curr && curr != fromBlock) { 4774a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch ASSERT(curr->isRenderBlock()); 478545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 479545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* blockCurr = toRenderBlock(curr); 480545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 481545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Create a new clone. 482545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* cloneChild = cloneBlock; 483cad810f21b803229eb11403f9209855525a25d57Steve Block cloneBlock = blockCurr->clone(); 484545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 485545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Insert our child clone as the first child. 486545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch cloneBlock->children()->appendChildNode(cloneBlock, cloneChild); 487545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 488545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Hook the clone up as a continuation of |curr|. Note we do encounter 489545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // anonymous blocks possibly as we walk up the block chain. When we split an 490545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // anonymous block, there's no need to do any continuation hookup, since we haven't 491545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // actually split a real element. 492545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (!blockCurr->isAnonymousBlock()) { 493545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch oldCont = blockCurr->continuation(); 494545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch blockCurr->setContinuation(cloneBlock); 495545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch cloneBlock->setContinuation(oldCont); 496545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } 497545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 498545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Someone may have indirectly caused a <q> to split. When this happens, the :after content 499545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // has to move into the inline continuation. Call updateBeforeAfterContent to ensure that the inline's :after 500545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // content gets properly destroyed. 501545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (document()->usesBeforeAfterRules()) 502545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch blockCurr->children()->updateBeforeAfterContent(blockCurr, AFTER); 503545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 504545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Now we need to take all of the children starting from the first child 505545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // *after* currChild and append them all to the clone. 506545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderObject* afterContent = isAfterContent(cloneBlock->lastChild()) ? cloneBlock->lastChild() : 0; 507545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch blockCurr->moveChildrenTo(cloneBlock, currChild->nextSibling(), 0, afterContent); 508545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 509545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Keep walking up the chain. 510545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch currChild = curr; 511545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch curr = toRenderBoxModelObject(curr->parent()); 512545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } 513545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 514545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Now we are at the columns block level. We need to put the clone into the toBlock. 515545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch toBlock->children()->appendChildNode(toBlock, cloneBlock); 516545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 517545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Now take all the children after currChild and remove them from the fromBlock 518545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // and put them in the toBlock. 519545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch fromBlock->moveChildrenTo(toBlock, currChild->nextSibling(), 0); 520545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch} 521545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 522545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdochvoid RenderBlock::splitFlow(RenderObject* beforeChild, RenderBlock* newBlockBox, 523545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderObject* newChild, RenderBoxModelObject* oldCont) 524545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch{ 525545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* pre = 0; 526545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* block = containingColumnsBlock(); 527545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 528545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Delete our line boxes before we do the inline split into continuations. 529545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch block->deleteLineBoxTree(); 530545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 531545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch bool madeNewBeforeBlock = false; 532545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (block->isAnonymousColumnsBlock()) { 533545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // We can reuse this block and make it the preBlock of the next continuation. 534545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch pre = block; 535545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch pre->removePositionedObjects(0); 536545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch block = toRenderBlock(block->parent()); 537545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } else { 538545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // No anonymous block available for use. Make one. 539545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch pre = block->createAnonymousColumnsBlock(); 540545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch pre->setChildrenInline(false); 541545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch madeNewBeforeBlock = true; 542545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } 543545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 544545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* post = block->createAnonymousColumnsBlock(); 545545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch post->setChildrenInline(false); 546545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 547545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderObject* boxFirst = madeNewBeforeBlock ? block->firstChild() : pre->nextSibling(); 548545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (madeNewBeforeBlock) 549545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch block->children()->insertChildNode(block, pre, boxFirst); 550545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch block->children()->insertChildNode(block, newBlockBox, boxFirst); 551545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch block->children()->insertChildNode(block, post, boxFirst); 552545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch block->setChildrenInline(false); 553545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 554545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (madeNewBeforeBlock) 555545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch block->moveChildrenTo(pre, boxFirst, 0); 556545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 557545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch splitBlocks(pre, post, newBlockBox, beforeChild, oldCont); 558545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 559545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // We already know the newBlockBox isn't going to contain inline kids, so avoid wasting 560545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // time in makeChildrenNonInline by just setting this explicitly up front. 561545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch newBlockBox->setChildrenInline(false); 562545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 563545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // We delayed adding the newChild until now so that the |newBlockBox| would be fully 564545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // connected, thus allowing newChild access to a renderArena should it need 565545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // to wrap itself in additional boxes (e.g., table construction). 566545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch newBlockBox->addChild(newChild); 567545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 568545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // Always just do a full layout in order to ensure that line boxes (especially wrappers for images) 569545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // get deleted properly. Because objects moves from the pre block into the post block, we want to 570545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // make new line boxes instead of leaving the old line boxes around. 571545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch pre->setNeedsLayoutAndPrefWidthsRecalc(); 572545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch block->setNeedsLayoutAndPrefWidthsRecalc(); 573545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch post->setNeedsLayoutAndPrefWidthsRecalc(); 574545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch} 575545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 5765af96e2c7b73ebc627c6894727826a7576d31758Leon ClarkeRenderObject* RenderBlock::splitAnonymousBlocksAroundChild(RenderObject* beforeChild) 5775af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 5785af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke while (beforeChild->parent() != this) { 5795af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* blockToSplit = toRenderBlock(beforeChild->parent()); 5805af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (blockToSplit->firstChild() != beforeChild) { 5815af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // We have to split the parentBlock into two blocks. 5825af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* post = createAnonymousBlockWithSameTypeAs(blockToSplit); 5835af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke post->setChildrenInline(blockToSplit->childrenInline()); 5845af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* parentBlock = toRenderBlock(blockToSplit->parent()); 5855af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke parentBlock->children()->insertChildNode(parentBlock, post, blockToSplit->nextSibling()); 5865af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke blockToSplit->moveChildrenTo(post, beforeChild, 0, blockToSplit->hasLayer()); 5875af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke post->setNeedsLayoutAndPrefWidthsRecalc(); 5885af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke blockToSplit->setNeedsLayoutAndPrefWidthsRecalc(); 5895af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke beforeChild = post; 5905af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } else 5915af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke beforeChild = blockToSplit; 5925af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } 5935af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return beforeChild; 5945af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 5955af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 5965af96e2c7b73ebc627c6894727826a7576d31758Leon Clarkevoid RenderBlock::makeChildrenAnonymousColumnBlocks(RenderObject* beforeChild, RenderBlock* newBlockBox, RenderObject* newChild) 5975af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 5985af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* pre = 0; 5995af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* post = 0; 6005af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* block = this; // Eventually block will not just be |this|, but will also be a block nested inside |this|. Assign to a variable 6015af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // so that we don't have to patch all of the rest of the code later on. 6025af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 6035af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Delete the block's line boxes before we do the split. 6045af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke block->deleteLineBoxTree(); 605545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 6065af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (beforeChild && beforeChild->parent() != this) 6075af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke beforeChild = splitAnonymousBlocksAroundChild(beforeChild); 608545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 6095af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (beforeChild != firstChild()) { 6105af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke pre = block->createAnonymousColumnsBlock(); 6115af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke pre->setChildrenInline(block->childrenInline()); 6125af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } 6135af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 6145af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (beforeChild) { 6155af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke post = block->createAnonymousColumnsBlock(); 6165af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke post->setChildrenInline(block->childrenInline()); 6175af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } 6185af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 6195af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderObject* boxFirst = block->firstChild(); 6205af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (pre) 6215af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke block->children()->insertChildNode(block, pre, boxFirst); 6225af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke block->children()->insertChildNode(block, newBlockBox, boxFirst); 6235af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (post) 6245af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke block->children()->insertChildNode(block, post, boxFirst); 6255af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke block->setChildrenInline(false); 6265af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 6275af96e2c7b73ebc627c6894727826a7576d31758Leon 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). 6285af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke block->moveChildrenTo(pre, boxFirst, beforeChild, true); 6295af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke block->moveChildrenTo(post, beforeChild, 0, true); 6305af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 6315af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // We already know the newBlockBox isn't going to contain inline kids, so avoid wasting 6325af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // time in makeChildrenNonInline by just setting this explicitly up front. 6335af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newBlockBox->setChildrenInline(false); 6345af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 6355af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // We delayed adding the newChild until now so that the |newBlockBox| would be fully 6365af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // connected, thus allowing newChild access to a renderArena should it need 6375af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // to wrap itself in additional boxes (e.g., table construction). 6385af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newBlockBox->addChild(newChild); 6395af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 6405af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Always just do a full layout in order to ensure that line boxes (especially wrappers for images) 6415af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // get deleted properly. Because objects moved from the pre block into the post block, we want to 6425af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // make new line boxes instead of leaving the old line boxes around. 6435af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (pre) 6445af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke pre->setNeedsLayoutAndPrefWidthsRecalc(); 6455af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke block->setNeedsLayoutAndPrefWidthsRecalc(); 6465af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (post) 6475af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke post->setNeedsLayoutAndPrefWidthsRecalc(); 6485af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 6495af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 650545e470e52f0ac6a3a072bf559c796b42c6066b6Ben MurdochRenderBlock* RenderBlock::columnsBlockForSpanningElement(RenderObject* newChild) 6515af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 652545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // FIXME: This function is the gateway for the addition of column-span support. It will 653545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // be added to in three stages: 6545af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // (1) Immediate children of a multi-column block can span. 6555af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // (2) Nested block-level children with only block-level ancestors between them and the multi-column block can span. 6565af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // (3) Nested children with block or inline ancestors between them and the multi-column block can span (this is when we 6575af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // cross the streams and have to cope with both types of continuations mixed together). 658545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // This function currently supports (1) and (2). 659545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch RenderBlock* columnsBlockAncestor = 0; 660545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (!newChild->isText() && newChild->style()->columnSpan() && !newChild->isFloatingOrPositioned() 661545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch && !newChild->isInline() && !isAnonymousColumnSpanBlock()) { 662545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (style()->specifiesColumns()) 663545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch columnsBlockAncestor = this; 664bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen else if (parent() && parent()->isRenderBlock()) 665545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch columnsBlockAncestor = toRenderBlock(parent())->containingColumnsBlock(false); 666545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch } 667545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return columnsBlockAncestor; 6685af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 6695af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 6705af96e2c7b73ebc627c6894727826a7576d31758Leon Clarkevoid RenderBlock::addChildIgnoringAnonymousColumnBlocks(RenderObject* newChild, RenderObject* beforeChild) 6718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 6728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Make sure we don't append things after :after-generated content if we have it. 673dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block if (!beforeChild) { 674dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block RenderObject* lastRenderer = lastChild(); 675dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block if (isAfterContent(lastRenderer)) 676dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block beforeChild = lastRenderer; 677dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block else if (lastRenderer && lastRenderer->isAnonymousBlock() && isAfterContent(lastRenderer->lastChild())) 678dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block beforeChild = lastRenderer->lastChild(); 679dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block } 6808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the requested beforeChild is not one of our children, then this is because 6828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // there is an anonymous container within this object that contains the beforeChild. 6838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (beforeChild && beforeChild->parent() != this) { 6848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* anonymousChild = beforeChild->parent(); 6858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(anonymousChild); 6868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (anonymousChild->parent() != this) 6888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project anonymousChild = anonymousChild->parent(); 6898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(anonymousChild->isAnonymous()); 6918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (anonymousChild->isAnonymousBlock()) { 6938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Insert the child into the anonymous block box instead of here. 6948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (newChild->isInline() || beforeChild->parent()->firstChild() != beforeChild) 6958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project beforeChild->parent()->addChild(newChild, beforeChild); 6968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 6978f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian addChild(newChild, beforeChild->parent()); 6988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 6998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(anonymousChild->isTable()); 7028f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if ((newChild->isTableCol() && newChild->style()->display() == TABLE_COLUMN_GROUP) 7038f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian || (newChild->isRenderBlock() && newChild->style()->display() == TABLE_CAPTION) 7048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project || newChild->isTableSection() 7058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project || newChild->isTableRow() 7068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project || newChild->isTableCell()) { 7078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Insert into the anonymous table. 7088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project anonymousChild->addChild(newChild, beforeChild); 7098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 7108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Go on to insert before the anonymous table. 7138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project beforeChild = anonymousChild; 7148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7164a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // Check for a spanning element in columns. 7174a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch RenderBlock* columnsBlockAncestor = columnsBlockForSpanningElement(newChild); 7184a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch if (columnsBlockAncestor) { 7194a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // We are placing a column-span element inside a block. 7204a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch RenderBlock* newBox = createAnonymousColumnSpanBlock(); 7214a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch 7224a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch if (columnsBlockAncestor != this) { 7234a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // We are nested inside a multi-column element and are being split by the span. We have to break up 7244a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // our block into continuations. 7254a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch RenderBoxModelObject* oldContinuation = continuation(); 7264a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch setContinuation(newBox); 7274a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch 7284a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // Someone may have put a <p> inside a <q>, causing a split. When this happens, the :after content 7294a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // has to move into the inline continuation. Call updateBeforeAfterContent to ensure that our :after 7304a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // content gets properly destroyed. 7314a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch bool isLastChild = (beforeChild == lastChild()); 7324a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch if (document()->usesBeforeAfterRules()) 7334a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch children()->updateBeforeAfterContent(this, AFTER); 7344a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch if (isLastChild && beforeChild != lastChild()) 7354a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch beforeChild = 0; // We destroyed the last child, so now we need to update our insertion 7364a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // point to be 0. It's just a straight append now. 7374a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch 7384a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch splitFlow(beforeChild, newBox, newChild, oldContinuation); 7394a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch return; 7404a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch } 7414a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch 7424a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // We have to perform a split of this block's children. This involves creating an anonymous block box to hold 7434a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // the column-spanning |newChild|. We take all of the children from before |newChild| and put them into 7444a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch // one anonymous columns block, and all of the children after |newChild| go into another anonymous block. 7454a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch makeChildrenAnonymousColumnBlocks(beforeChild, newBox, newChild); 7464a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch return; 7474a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch } 7484a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch 7494a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch bool madeBoxesNonInline = false; 7504a156157940f51b91eadd76f6c86f862ec0a1da0Ben Murdoch 7518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // A block has to either have all of its children inline, or all of its children as blocks. 7528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // So, if our children are currently inline and a block child has to be inserted, we move all our 7538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // inline children into anonymous block boxes. 7548f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (childrenInline() && !newChild->isInline() && !newChild->isFloatingOrPositioned()) { 7558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // This is a block with inline content. Wrap the inline content in anonymous blocks. 7568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project makeChildrenNonInline(beforeChild); 7578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project madeBoxesNonInline = true; 7588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (beforeChild && beforeChild->parent() != this) { 7608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project beforeChild = beforeChild->parent(); 7618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(beforeChild->isAnonymousBlock()); 7628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(beforeChild->parent() == this); 7638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7648f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } else if (!childrenInline() && (newChild->isFloatingOrPositioned() || newChild->isInline())) { 7658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If we're inserting an inline child but all of our children are blocks, then we have to make sure 7668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // it is put into an anomyous block box. We try to use an existing anonymous box if possible, otherwise 7678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // a new one is created and inserted into our list of children in the appropriate position. 7688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* afterChild = beforeChild ? beforeChild->previousSibling() : lastChild(); 7698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (afterChild && afterChild->isAnonymousBlock()) { 7718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project afterChild->addChild(newChild); 7728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 7738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (newChild->isInline()) { 7768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // No suitable existing anonymous box - create a new one. 7778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderBlock* newBox = createAnonymousBlock(); 7788f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBox::addChild(newBox, beforeChild); 7798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project newBox->addChild(newChild); 7808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 7818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7848f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBox::addChild(newChild, beforeChild); 7858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7868f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (madeBoxesNonInline && parent() && isAnonymousBlock() && parent()->isRenderBlock()) 7878f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian toRenderBlock(parent())->removeLeftoverAnonymousBlock(this); 7888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // this object may be dead here 7898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 7908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7915af96e2c7b73ebc627c6894727826a7576d31758Leon Clarkevoid RenderBlock::addChild(RenderObject* newChild, RenderObject* beforeChild) 7925af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 793545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (continuation() && !isAnonymousBlock()) 794545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return addChildToContinuation(newChild, beforeChild); 795545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return addChildIgnoringContinuation(newChild, beforeChild); 796545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch} 797545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 798545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdochvoid RenderBlock::addChildIgnoringContinuation(RenderObject* newChild, RenderObject* beforeChild) 799545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch{ 800545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (!isAnonymousBlock() && firstChild() && (firstChild()->isAnonymousColumnsBlock() || firstChild()->isAnonymousColumnSpanBlock())) 8015af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return addChildToAnonymousColumnBlocks(newChild, beforeChild); 8025af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return addChildIgnoringAnonymousColumnBlocks(newChild, beforeChild); 8035af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 8045af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 8058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstatic void getInlineRun(RenderObject* start, RenderObject* boundary, 8068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject*& inlineRunStart, 8078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject*& inlineRunEnd) 8088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 8098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Beginning at |start| we find the largest contiguous run of inlines that 8108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // we can. We denote the run with start and end points, |inlineRunStart| 8118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // and |inlineRunEnd|. Note that these two values may be the same if 8128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // we encounter only one inline. 8138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 8148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We skip any non-inlines we encounter as long as we haven't found any 8158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // inlines yet. 8168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 8178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // |boundary| indicates a non-inclusive boundary point. Regardless of whether |boundary| 8188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The 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 8198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // a non-inline. 8208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Start by skipping as many non-inlines as we can. 8228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject * curr = start; 8238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool sawInline; 8248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project do { 8258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (curr && !(curr->isInline() || curr->isFloatingOrPositioned())) 8268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project curr = curr->nextSibling(); 8278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineRunStart = inlineRunEnd = curr; 8298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!curr) 8318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; // No more inline children to be found. 8328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project sawInline = curr->isInline(); 8348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project curr = curr->nextSibling(); 8368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (curr && (curr->isInline() || curr->isFloatingOrPositioned()) && (curr != boundary)) { 8378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineRunEnd = curr; 8388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (curr->isInline()) 8398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project sawInline = true; 8408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project curr = curr->nextSibling(); 8418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 8428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } while (!sawInline); 8438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 8448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::deleteLineBoxTree() 8468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 8478f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian m_lineBoxes.deleteLineBoxTree(renderArena()); 8488f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 8498f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 8500bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben MurdochRootInlineBox* RenderBlock::createRootInlineBox() 8518f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 8528f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return new (renderArena()) RootInlineBox(this); 8538f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 8548f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 8550bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben MurdochRootInlineBox* RenderBlock::createAndAppendRootInlineBox() 8568f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 8570bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch RootInlineBox* rootBox = createRootInlineBox(); 8588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian m_lineBoxes.appendLineBox(rootBox); 8598f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return rootBox; 8608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 861643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 8625af96e2c7b73ebc627c6894727826a7576d31758Leon Clarkevoid RenderBlock::moveChildTo(RenderBlock* to, RenderObject* child, RenderObject* beforeChild, bool fullRemoveInsert) 863643ca7872b450ea4efacab6188849e5aac2ba161Steve Block{ 864643ca7872b450ea4efacab6188849e5aac2ba161Steve Block ASSERT(this == child->parent()); 865643ca7872b450ea4efacab6188849e5aac2ba161Steve Block ASSERT(!beforeChild || to == beforeChild->parent()); 8665af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke to->children()->insertChildNode(to, children()->removeChildNode(this, child, fullRemoveInsert), beforeChild, fullRemoveInsert); 867d0825bca7fe65beaee391d30da42e937db621564Steve Block} 868d0825bca7fe65beaee391d30da42e937db621564Steve Block 8695af96e2c7b73ebc627c6894727826a7576d31758Leon Clarkevoid RenderBlock::moveChildrenTo(RenderBlock* to, RenderObject* startChild, RenderObject* endChild, RenderObject* beforeChild, bool fullRemoveInsert) 870d0825bca7fe65beaee391d30da42e937db621564Steve Block{ 871d0825bca7fe65beaee391d30da42e937db621564Steve Block ASSERT(!beforeChild || to == beforeChild->parent()); 8725af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderObject* nextChild = startChild; 8735af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke while (nextChild && nextChild != endChild) { 874d0825bca7fe65beaee391d30da42e937db621564Steve Block RenderObject* child = nextChild; 875d0825bca7fe65beaee391d30da42e937db621564Steve Block nextChild = child->nextSibling(); 8765af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke to->children()->insertChildNode(to, children()->removeChildNode(this, child, fullRemoveInsert), beforeChild, fullRemoveInsert); 8775af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (child == endChild) 8785af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return; 879d0825bca7fe65beaee391d30da42e937db621564Steve Block } 880d0825bca7fe65beaee391d30da42e937db621564Steve Block} 881d0825bca7fe65beaee391d30da42e937db621564Steve Block 8828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::makeChildrenNonInline(RenderObject *insertionPoint) 8838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 8848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // makeChildrenNonInline takes a block whose children are *all* inline and it 8858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // makes sure that inline children are coalesced under anonymous 8868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // blocks. If |insertionPoint| is defined, then it represents the insertion point for 8878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the new block child that is causing us to have to wrap all the inlines. This 8888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // means that we cannot coalesce inlines before |insertionPoint| with inlines following 8898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // |insertionPoint|, because the new child is going to be inserted in between the inlines, 8908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // splitting them. 8918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(isInlineBlockOrInlineTable() || !isInline()); 8928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(!insertionPoint || insertionPoint->parent() == this); 8938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8948f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian setChildrenInline(false); 8958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject *child = firstChild(); 8978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!child) 8988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 8998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 9008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project deleteLineBoxTree(); 9018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 9028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (child) { 9038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject *inlineRunStart, *inlineRunEnd; 9048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project getInlineRun(child, insertionPoint, inlineRunStart, inlineRunEnd); 9058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 9068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!inlineRunStart) 9078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 9088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 9098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project child = inlineRunEnd->nextSibling(); 9108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 9118f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBlock* block = createAnonymousBlock(); 9128f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian children()->insertChildNode(this, block, inlineRunStart); 9135af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke moveChildrenTo(block, inlineRunStart, child); 9148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 9158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 9168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#ifndef NDEBUG 9178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderObject *c = firstChild(); c; c = c->nextSibling()) 9188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(!c->isInline()); 9198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#endif 9208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 9218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project repaint(); 9228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 9238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 9248f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::removeLeftoverAnonymousBlock(RenderBlock* child) 9258f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 9268f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian ASSERT(child->isAnonymousBlock()); 9278f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian ASSERT(!child->childrenInline()); 9288f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 9295af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (child->continuation() || (child->firstChild() && (child->isAnonymousColumnSpanBlock() || child->isAnonymousColumnsBlock()))) 9308f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return; 9318f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 9328f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderObject* firstAnChild = child->m_children.firstChild(); 9338f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderObject* lastAnChild = child->m_children.lastChild(); 9348f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (firstAnChild) { 9358f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderObject* o = firstAnChild; 9368f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian while (o) { 9378f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian o->setParent(this); 9388f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian o = o->nextSibling(); 9398f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 9408f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian firstAnChild->setPreviousSibling(child->previousSibling()); 9418f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian lastAnChild->setNextSibling(child->nextSibling()); 9428f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (child->previousSibling()) 9438f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->previousSibling()->setNextSibling(firstAnChild); 9448f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (child->nextSibling()) 9458f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->nextSibling()->setPreviousSibling(lastAnChild); 9465af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 9475af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (child == m_children.firstChild()) 9485af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke m_children.setFirstChild(firstAnChild); 9495af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (child == m_children.lastChild()) 9505af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke m_children.setLastChild(lastAnChild); 9518f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } else { 9525af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (child == m_children.firstChild()) 9535af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke m_children.setFirstChild(child->nextSibling()); 9545af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (child == m_children.lastChild()) 9555af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke m_children.setLastChild(child->previousSibling()); 9565af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 9578f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (child->previousSibling()) 9588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->previousSibling()->setNextSibling(child->nextSibling()); 9598f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (child->nextSibling()) 9608f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->nextSibling()->setPreviousSibling(child->previousSibling()); 9618f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 9628f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->setParent(0); 9638f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->setPreviousSibling(0); 9648f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->setNextSibling(0); 9658f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 9668f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->children()->setFirstChild(0); 9678f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->m_next = 0; 9688f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 9698f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian child->destroy(); 9708f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 9718f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 9725af96e2c7b73ebc627c6894727826a7576d31758Leon Clarkestatic bool canMergeContiguousAnonymousBlocks(RenderObject* oldChild, RenderObject* prev, RenderObject* next) 9735af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 9745af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (oldChild->documentBeingDestroyed() || oldChild->isInline() || oldChild->virtualContinuation()) 9755af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return false; 9765af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 9772bde8e466a4451c7319e3a072d118917957d6554Steve Block if (oldChild->parent() && oldChild->parent()->isDetails()) 9782bde8e466a4451c7319e3a072d118917957d6554Steve Block return false; 9792bde8e466a4451c7319e3a072d118917957d6554Steve Block 98065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch if ((prev && (!prev->isAnonymousBlock() || toRenderBlock(prev)->continuation() || toRenderBlock(prev)->beingDestroyed())) 98165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch || (next && (!next->isAnonymousBlock() || toRenderBlock(next)->continuation() || toRenderBlock(next)->beingDestroyed()))) 9825af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return false; 9835af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 984967717af5423377c967781471ee106e2bb4e11c8Ben Murdoch // FIXME: This check isn't required when inline run-ins can't be split into continuations. 985967717af5423377c967781471ee106e2bb4e11c8Ben Murdoch if (prev && prev->firstChild() && prev->firstChild()->isInline() && prev->firstChild()->isRunIn()) 986967717af5423377c967781471ee106e2bb4e11c8Ben Murdoch return false; 987967717af5423377c967781471ee106e2bb4e11c8Ben Murdoch 9885af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if ((prev && (prev->isRubyRun() || prev->isRubyBase())) 9895af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke || (next && (next->isRubyRun() || next->isRubyBase()))) 9905af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return false; 9915af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 9925af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (!prev || !next) 9935af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return true; 9945af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 9955af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Make sure the types of the anonymous blocks match up. 9965af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return prev->isAnonymousColumnsBlock() == next->isAnonymousColumnsBlock() 997cad810f21b803229eb11403f9209855525a25d57Steve Block && prev->isAnonymousColumnSpanBlock() == next->isAnonymousColumnSpanBlock(); 9985af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 9995af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 10008f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::removeChild(RenderObject* oldChild) 10018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 10028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If this child is a block, and if our previous and next siblings are 10038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // both anonymous blocks with inline content, then we can go ahead and 10048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // fold the inline content back together. 10058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* prev = oldChild->previousSibling(); 10068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* next = oldChild->nextSibling(); 10075af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke bool canMergeAnonymousBlocks = canMergeContiguousAnonymousBlocks(oldChild, prev, next); 10085af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (canMergeAnonymousBlocks && prev && next) { 10098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project prev->setNeedsLayoutAndPrefWidthsRecalc(); 10108f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBlock* nextBlock = toRenderBlock(next); 10118f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBlock* prevBlock = toRenderBlock(prev); 10125af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 10135af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (prev->childrenInline() != next->childrenInline()) { 10145af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* inlineChildrenBlock = prev->childrenInline() ? prevBlock : nextBlock; 10155af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* blockChildrenBlock = prev->childrenInline() ? nextBlock : prevBlock; 10165af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 10175af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Place the inline children block inside of the block children block instead of deleting it. 10185af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // In order to reuse it, we have to reset it to just be a generic anonymous block. Make sure 10195af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // to clear out inherited column properties by just making a new style, and to also clear the 10205af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // column span flag if it is set. 10215af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke ASSERT(!inlineChildrenBlock->continuation()); 10222bde8e466a4451c7319e3a072d118917957d6554Steve Block RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyle(style()); 10235af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke children()->removeChildNode(this, inlineChildrenBlock, inlineChildrenBlock->hasLayer()); 10245af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke inlineChildrenBlock->setStyle(newStyle); 10255af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 10265af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Now just put the inlineChildrenBlock inside the blockChildrenBlock. 10275af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke blockChildrenBlock->children()->insertChildNode(blockChildrenBlock, inlineChildrenBlock, prev == inlineChildrenBlock ? blockChildrenBlock->firstChild() : 0, 10285af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke inlineChildrenBlock->hasLayer() || blockChildrenBlock->hasLayer()); 10295af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke next->setNeedsLayoutAndPrefWidthsRecalc(); 1030cad810f21b803229eb11403f9209855525a25d57Steve Block 1031cad810f21b803229eb11403f9209855525a25d57Steve Block // inlineChildrenBlock got reparented to blockChildrenBlock, so it is no longer a child 1032cad810f21b803229eb11403f9209855525a25d57Steve Block // of "this". we null out prev or next so that is not used later in the function. 1033cad810f21b803229eb11403f9209855525a25d57Steve Block if (inlineChildrenBlock == prevBlock) 1034cad810f21b803229eb11403f9209855525a25d57Steve Block prev = 0; 1035cad810f21b803229eb11403f9209855525a25d57Steve Block else 1036cad810f21b803229eb11403f9209855525a25d57Steve Block next = 0; 10375af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } else { 10385af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Take all the children out of the |next| block and put them in 10395af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // the |prev| block. 104065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch nextBlock->moveAllChildrenTo(prevBlock, nextBlock->hasLayer() || prevBlock->hasLayer()); 1041cad810f21b803229eb11403f9209855525a25d57Steve Block 10425af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // Delete the now-empty block's lines and nuke it. 10435af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke nextBlock->deleteLineBoxTree(); 10445af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke nextBlock->destroy(); 1045cad810f21b803229eb11403f9209855525a25d57Steve Block next = 0; 10465af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } 10478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 10488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 10498f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBox::removeChild(oldChild); 10508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 10518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* child = prev ? prev : next; 10525af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (canMergeAnonymousBlocks && child && !child->previousSibling() && !child->nextSibling() && !isFlexibleBox()) { 10538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The removal has knocked us down to containing only a single anonymous 10548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // box. We can go ahead and pull the content right back up into our 10558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // box. 10568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project setNeedsLayoutAndPrefWidthsRecalc(); 10575af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke setChildrenInline(child->childrenInline()); 10585af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* anonBlock = toRenderBlock(children()->removeChildNode(this, child, child->hasLayer())); 10595af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke anonBlock->moveAllChildrenTo(this, child->hasLayer()); 10608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Delete the now-empty block's lines and nuke it. 10618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project anonBlock->deleteLineBoxTree(); 10628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project anonBlock->destroy(); 10638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1064d0825bca7fe65beaee391d30da42e937db621564Steve Block 10655af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (!firstChild() && !documentBeingDestroyed()) { 10665af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke // If this was our last child be sure to clear out our line boxes. 10675af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (childrenInline()) 10685af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke lineBoxes()->deleteLineBoxes(renderArena()); 10695af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke } 10708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 10718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 10728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::isSelfCollapsingBlock() const 10738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 10748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We are not self-collapsing if we 10758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (a) have a non-zero height according to layout (an optimization to avoid wasting time) 10768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (b) are a table, 10778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (c) have border/padding, 10788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (d) have a min-height 10798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (e) have specified that one of our margins can't collapse using a CSS extension 1080a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (logicalHeight() > 0 1081a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch || isTable() || borderAndPaddingLogicalHeight() 1082a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch || style()->logicalMinHeight().isPositive() 1083bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen || style()->marginBeforeCollapse() == MSEPARATE || style()->marginAfterCollapse() == MSEPARATE) 10848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 10858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1086a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch Length logicalHeightLength = style()->logicalHeight(); 1087a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bool hasAutoHeight = logicalHeightLength.isAuto(); 1088a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (logicalHeightLength.isPercent() && !document()->inQuirksMode()) { 10898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project hasAutoHeight = true; 10908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderBlock* cb = containingBlock(); !cb->isRenderView(); cb = cb->containingBlock()) { 1091a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (cb->style()->logicalHeight().isFixed() || cb->isTableCell()) 10928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project hasAutoHeight = false; 10938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 10948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 10958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 10968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the height is 0 or auto, then whether or not we are a self-collapsing block depends 10978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // on whether we have content that is all self-collapsing or not. 1098a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (hasAutoHeight || ((logicalHeightLength.isFixed() || logicalHeightLength.isPercent()) && logicalHeightLength.isZero())) { 10998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the block has inline children, see if we generated any line boxes. If we have any 11008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // line boxes, then we can't be self-collapsing, since we have content. 11018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) 11028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return !firstLineBox(); 11038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Whether or not we collapse is dependent on whether all our normal flow children 11058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // are also self-collapsing. 1106635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (RenderBox* child = firstChildBox(); child; child = child->nextSiblingBox()) { 11078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isFloatingOrPositioned()) 11088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 11098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!child->isSelfCollapsingBlock()) 11108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 11118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 11128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 11138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 11148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 11158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 11168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11170bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdochvoid RenderBlock::startDelayUpdateScrollInfo() 11180bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch{ 11190bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch if (gDelayUpdateScrollInfo == 0) { 11200bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch ASSERT(!gDelayedUpdateScrollInfoSet); 11210bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch gDelayedUpdateScrollInfoSet = new DelayedUpdateScrollInfoSet; 11220bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch } 11230bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch ASSERT(gDelayedUpdateScrollInfoSet); 11240bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch ++gDelayUpdateScrollInfo; 11250bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch} 11260bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 11270bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdochvoid RenderBlock::finishDelayUpdateScrollInfo() 11280bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch{ 11290bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch --gDelayUpdateScrollInfo; 11300bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch ASSERT(gDelayUpdateScrollInfo >= 0); 11310bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch if (gDelayUpdateScrollInfo == 0) { 11320bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch ASSERT(gDelayedUpdateScrollInfoSet); 11330bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 1134643ca7872b450ea4efacab6188849e5aac2ba161Steve Block OwnPtr<DelayedUpdateScrollInfoSet> infoSet(gDelayedUpdateScrollInfoSet); 1135643ca7872b450ea4efacab6188849e5aac2ba161Steve Block gDelayedUpdateScrollInfoSet = 0; 1136643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 1137643ca7872b450ea4efacab6188849e5aac2ba161Steve Block for (DelayedUpdateScrollInfoSet::iterator it = infoSet->begin(); it != infoSet->end(); ++it) { 11380bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch RenderBlock* block = *it; 11390bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch if (block->hasOverflowClip()) { 11400bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch block->layer()->updateScrollInfoAfterLayout(); 11410bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch } 11420bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch } 11430bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch } 11440bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch} 11450bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 11460bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdochvoid RenderBlock::updateScrollInfoAfterLayout() 11470bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch{ 11480bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch if (hasOverflowClip()) { 11490bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch if (gDelayUpdateScrollInfo) 11500bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch gDelayedUpdateScrollInfoSet->add(this); 11510bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch else 11520bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch layer()->updateScrollInfoAfterLayout(); 11530bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch } 11540bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch} 11550bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 11568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::layout() 11578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 11588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Update our first letter info now. 11598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project updateFirstLetter(); 11608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Table cells call layoutBlock directly, so don't add any logic here. Put code into 11628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // layoutBlock(). 11638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project layoutBlock(false); 11648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // It's safe to check for control clip here, since controls can never be table cells. 1166231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // If we have a lightweight clip, there can never be any overflow from children. 1167231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (hasControlClip() && m_overflow) 1168231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block clearLayoutOverflow(); 11698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 11708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1171f05b935882198ccf7d81675736e3aeb089c5113aBen Murdochvoid RenderBlock::layoutBlock(bool relayoutChildren, int pageLogicalHeight) 11728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 11738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(needsLayout()); 11748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isInline() && !isInlineBlockOrInlineTable()) // Inline <form>s inside various table elements can 11768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; // cause us to come in here. Just bail. 11778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11782bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!relayoutChildren && simplifiedLayout()) 11798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 11808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11818f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian LayoutRepainter repainter(*this, m_everHadLayout && checkForRepaintDuringLayout()); 11828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1183a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int oldWidth = logicalWidth(); 11848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int oldColumnWidth = desiredColumnWidth(); 11858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1186bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen computeLogicalWidth(); 11878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project calcColumnWidth(); 11888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1189231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block m_overflow.clear(); 11908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1191bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (oldWidth != logicalWidth() || oldColumnWidth != desiredColumnWidth()) 11928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project relayoutChildren = true; 11938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#ifdef ANDROID_LAYOUT 119523e9dd818a876304304944c844be7625f63383c4Shimeng (Simon) Wang checkAndSetRelayoutChildren(&relayoutChildren); 11968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#endif 11978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 11988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project clearFloats(); 11998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1200bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int previousHeight = logicalHeight(); 1201bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setLogicalHeight(0); 1202f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch bool hasSpecifiedPageLogicalHeight = false; 1203f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch bool pageLogicalHeightChanged = false; 120468513a70bcd92384395513322f1b801e7bf9c729Steve Block ColumnInfo* colInfo = columnInfo(); 120568513a70bcd92384395513322f1b801e7bf9c729Steve Block if (hasColumns()) { 1206f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!pageLogicalHeight) { 120768513a70bcd92384395513322f1b801e7bf9c729Steve Block // We need to go ahead and set our explicit page height if one exists, so that we can 120868513a70bcd92384395513322f1b801e7bf9c729Steve Block // avoid doing two layout passes. 1209bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen computeLogicalHeight(); 1210bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int columnHeight = contentLogicalHeight(); 121168513a70bcd92384395513322f1b801e7bf9c729Steve Block if (columnHeight > 0) { 1212f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch pageLogicalHeight = columnHeight; 1213f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch hasSpecifiedPageLogicalHeight = true; 121468513a70bcd92384395513322f1b801e7bf9c729Steve Block } 1215bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setLogicalHeight(0); 121668513a70bcd92384395513322f1b801e7bf9c729Steve Block } 1217f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (colInfo->columnHeight() != pageLogicalHeight && m_everHadLayout) { 1218f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch colInfo->setColumnHeight(pageLogicalHeight); 1219f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch pageLogicalHeightChanged = true; 122068513a70bcd92384395513322f1b801e7bf9c729Steve Block } 122168513a70bcd92384395513322f1b801e7bf9c729Steve Block 1222f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!hasSpecifiedPageLogicalHeight && !pageLogicalHeight) 122368513a70bcd92384395513322f1b801e7bf9c729Steve Block colInfo->clearForcedBreaks(); 122468513a70bcd92384395513322f1b801e7bf9c729Steve Block } 122568513a70bcd92384395513322f1b801e7bf9c729Steve Block 1226f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch LayoutStateMaintainer statePusher(view(), this, IntSize(x(), y()), hasColumns() || hasTransform() || hasReflection() || style()->isFlippedBlocksWritingMode(), pageLogicalHeight, pageLogicalHeightChanged, colInfo); 1227635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 12285f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // We use four values, maxTopPos, maxTopNeg, maxBottomPos, and maxBottomNeg, to track 12298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // our current maximal positive and negative margins. These values are used when we 12308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // are collapsed with adjacent blocks, so for example, if you have block A and B 12318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // collapsing together, then you'd take the maximal positive margin from both A and B 12328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // and subtract it from the maximal negative margin from both A and B to get the 12338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // true collapsed margin. This algorithm is recursive, so when we finish layout() 12348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // our block knows its current maximal positive/negative values. 12358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 12368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Start out by setting our margin values to our current margins. Table cells have 12378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // no margins, so we don't fill in the values for table cells. 12388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool isCell = isTableCell(); 12398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!isCell) { 12408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project initMaxMarginValues(); 124168513a70bcd92384395513322f1b801e7bf9c729Steve Block 1242bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setMarginBeforeQuirk(style()->marginBefore().quirk()); 1243bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setMarginAfterQuirk(style()->marginAfter().quirk()); 12448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 12458f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian Node* n = node(); 12468f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (n && n->hasTagName(formTag) && static_cast<HTMLFormElement*>(n)->isMalformed()) { 12478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // See if this form is malformed (i.e., unclosed). If so, don't give the form 12488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // a bottom margin. 1249bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setMaxMarginAfterValues(0, 0); 12508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 125168513a70bcd92384395513322f1b801e7bf9c729Steve Block 125268513a70bcd92384395513322f1b801e7bf9c729Steve Block setPaginationStrut(0); 12538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 12548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 12558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // For overflow:scroll blocks, ensure we have both scrollbars in place always. 12568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (scrollsOverflow()) { 12578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->overflowX() == OSCROLL) 12588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian layer()->setHasHorizontalScrollbar(true); 12598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->overflowY() == OSCROLL) 12608f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian layer()->setHasVerticalScrollbar(true); 12618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 12628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1263a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int repaintLogicalTop = 0; 1264a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int repaintLogicalBottom = 0; 1265a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int maxFloatLogicalBottom = 0; 1266e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (!firstChild() && !isAnonymousBlock()) 12676c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen setChildrenInline(true); 12688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) 1269a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch layoutInlineChildren(relayoutChildren, repaintLogicalTop, repaintLogicalBottom); 12708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 1271a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch layoutBlockChildren(relayoutChildren, maxFloatLogicalBottom); 12728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 12738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Expand our intrinsic height to encompass floats. 1274a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int toAdd = borderAfter() + paddingAfter() + scrollbarLogicalHeight(); 1275a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (lowestFloatLogicalBottom() > (logicalHeight() - toAdd) && expandsToEncloseOverhangingFloats()) 1276a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(lowestFloatLogicalBottom() + toAdd); 12778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1278f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (layoutColumns(hasSpecifiedPageLogicalHeight, pageLogicalHeight, statePusher)) 127968513a70bcd92384395513322f1b801e7bf9c729Steve Block return; 128068513a70bcd92384395513322f1b801e7bf9c729Steve Block 12818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Calculate our new height. 1282bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int oldHeight = logicalHeight(); 1283f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int oldClientAfterEdge = clientLogicalBottom(); 1284bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen computeLogicalHeight(); 1285bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int newHeight = logicalHeight(); 1286bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (oldHeight != newHeight) { 1287a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (oldHeight > newHeight && maxFloatLogicalBottom > newHeight && !childrenInline()) { 12888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // One of our children's floats may have become an overhanging float for us. We need to look for it. 12898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderObject* child = firstChild(); child; child = child->nextSibling()) { 12908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isBlockFlow() && !child->isFloatingOrPositioned()) { 12918f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBlock* block = toRenderBlock(child); 1292a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (block->lowestFloatLogicalBottom() + block->logicalTop() > newHeight) 1293a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch addOverhangingFloats(block, -block->logicalLeft(), -block->logicalTop(), false); 12948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 12958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 12968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 12978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1298231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 1299bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (previousHeight != newHeight) 13008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project relayoutChildren = true; 13018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1302231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block layoutPositionedObjects(relayoutChildren || isRoot()); 13038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1304f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // Add overflow from children (unless we're multi-column, since in that case all our child overflow is clipped anyway). 1305f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch computeOverflow(oldClientAfterEdge); 1306231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 1307635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project statePusher.pop(); 13088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1309f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (view()->layoutState()->m_pageLogicalHeight) 13102fc2651226baac27029e38c9d6ef883fa32084dbSteve Block setPageLogicalOffset(view()->layoutState()->pageLogicalOffset(logicalTop())); 1311f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1312f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch updateLayerTransform(); 131368513a70bcd92384395513322f1b801e7bf9c729Steve Block 13148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Update our scroll information if we're overflow:auto/scroll/hidden now that we know if 13158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // we overflow or not. 13160bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch updateScrollInfoAfterLayout(); 13178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 13188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Repaint with our new bounds if they are different from our old bounds. 13198f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian bool didFullRepaint = repainter.repaintAfterLayout(); 1320a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!didFullRepaint && repaintLogicalTop != repaintLogicalBottom && (style()->visibility() == VISIBLE || enclosingLayer()->hasVisibleContent())) { 1321f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // FIXME: We could tighten up the left and right invalidation points if we let layoutInlineChildren fill them in based off the particular lines 1322f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // it had to lay out. We wouldn't need the hasOverflowClip() hack in that case either. 1323f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int repaintLogicalLeft = logicalLeftVisualOverflow(); 1324f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int repaintLogicalRight = logicalRightVisualOverflow(); 1325f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (hasOverflowClip()) { 1326f05b935882198ccf7d81675736e3aeb089c5113aBen 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. 1327f05b935882198ccf7d81675736e3aeb089c5113aBen 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. 1328f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // layoutInlineChildren should be patched to compute the entire repaint rect. 1329f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch repaintLogicalLeft = min(repaintLogicalLeft, logicalLeftLayoutOverflow()); 1330f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch repaintLogicalRight = max(repaintLogicalRight, logicalRightLayoutOverflow()); 1331f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 1332a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 1333a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch IntRect repaintRect; 13342bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 1335a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch repaintRect = IntRect(repaintLogicalLeft, repaintLogicalTop, repaintLogicalRight - repaintLogicalLeft, repaintLogicalBottom - repaintLogicalTop); 1336a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch else 1337a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch repaintRect = IntRect(repaintLogicalTop, repaintLogicalLeft, repaintLogicalBottom - repaintLogicalTop, repaintLogicalRight - repaintLogicalLeft); 13388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1339e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block // The repaint rect may be split across columns, in which case adjustRectForColumns() will return the union. 1340e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block adjustRectForColumns(repaintRect); 13418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 13428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project repaintRect.inflate(maximalOutlineSize(PaintPhaseOutline)); 13438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 13448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (hasOverflowClip()) { 13458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Adjust repaint rect for scroll offset 1346dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block repaintRect.move(-layer()->scrolledContentOffset()); 13478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 13488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Don't allow this rect to spill out of our overflow box. 1349635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project repaintRect.intersect(IntRect(0, 0, width(), height())); 13508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 13518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 13528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Make sure the rect is still non-empty after intersecting for overflow above 13538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!repaintRect.isEmpty()) { 13548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project repaintRectangle(repaintRect); // We need to do a partial repaint of our content. 13558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (hasReflection()) 13565f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian repaintRectangle(reflectedRect(repaintRect)); 13578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 13588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 13598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project setNeedsLayout(false); 13608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 13618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1362f05b935882198ccf7d81675736e3aeb089c5113aBen Murdochvoid RenderBlock::addOverflowFromChildren() 1363f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch{ 1364f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!hasColumns()) { 1365f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (childrenInline()) 1366f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch addOverflowFromInlineChildren(); 1367f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch else 1368f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch addOverflowFromBlockChildren(); 1369f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } else { 1370f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch ColumnInfo* colInfo = columnInfo(); 1371f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (columnCount(colInfo)) { 1372f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch IntRect lastRect = columnRectAt(colInfo, columnCount(colInfo) - 1); 13732bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) { 13742fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int overflowLeft = !style()->isLeftToRightDirection() ? min(0, lastRect.x()) : 0; 13752fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int overflowRight = style()->isLeftToRightDirection() ? max(width(), lastRect.maxX()) : 0; 13762fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int overflowHeight = borderBefore() + paddingBefore() + colInfo->columnHeight(); 13772fc2651226baac27029e38c9d6ef883fa32084dbSteve Block addLayoutOverflow(IntRect(overflowLeft, 0, overflowRight - overflowLeft, overflowHeight)); 13782bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!hasOverflowClip()) 13792bde8e466a4451c7319e3a072d118917957d6554Steve Block addVisualOverflow(IntRect(overflowLeft, 0, overflowRight - overflowLeft, overflowHeight)); 13802fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } else { 13812fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntRect lastRect = columnRectAt(colInfo, columnCount(colInfo) - 1); 13822fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int overflowTop = !style()->isLeftToRightDirection() ? min(0, lastRect.y()) : 0; 13832fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int overflowBottom = style()->isLeftToRightDirection() ? max(height(), lastRect.maxY()) : 0; 13842fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int overflowWidth = borderBefore() + paddingBefore() + colInfo->columnHeight(); 13852fc2651226baac27029e38c9d6ef883fa32084dbSteve Block addLayoutOverflow(IntRect(0, overflowTop, overflowWidth, overflowBottom - overflowTop)); 13862bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!hasOverflowClip()) 13872bde8e466a4451c7319e3a072d118917957d6554Steve Block addVisualOverflow(IntRect(0, overflowTop, overflowWidth, overflowBottom - overflowTop)); 13882fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 1389f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 1390f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 1391f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch} 1392f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1393f05b935882198ccf7d81675736e3aeb089c5113aBen Murdochvoid RenderBlock::computeOverflow(int oldClientAfterEdge, bool recomputeFloats) 1394f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch{ 1395f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // Add overflow from children. 1396f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch addOverflowFromChildren(); 1397f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1398f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!hasColumns() && (recomputeFloats || isRoot() || expandsToEncloseOverhangingFloats() || hasSelfPaintingLayer())) 1399f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch addOverflowFromFloats(); 1400f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1401f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // Add in the overflow from positioned objects. 1402f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch addOverflowFromPositionedObjects(); 1403f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1404f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (hasOverflowClip()) { 1405f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // When we have overflow clip, propagate the original spillout since it will include collapsed bottom margins 1406f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // and bottom padding. Set the axis we don't care about to be 1, since we want this overflow to always 1407f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // be considered reachable. 1408f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch IntRect clientRect(clientBoxRect()); 1409f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch IntRect rectToApply; 14102bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 1411f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch rectToApply = IntRect(clientRect.x(), clientRect.y(), 1, max(0, oldClientAfterEdge - clientRect.y())); 1412f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch else 1413f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch rectToApply = IntRect(clientRect.x(), clientRect.y(), max(0, oldClientAfterEdge - clientRect.x()), 1); 1414f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch addLayoutOverflow(rectToApply); 1415f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 1416f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1417f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // Add visual overflow from box-shadow and reflections. 1418f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch addShadowOverflow(); 1419f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch} 1420f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1421231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Blockvoid RenderBlock::addOverflowFromBlockChildren() 1422231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block{ 1423231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block for (RenderBox* child = firstChildBox(); child; child = child->nextSiblingBox()) { 1424231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (!child->isFloatingOrPositioned()) 1425231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block addOverflowFromChild(child); 1426231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 1427231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block} 1428231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 1429231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Blockvoid RenderBlock::addOverflowFromFloats() 1430231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block{ 1431231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (!m_floatingObjects) 1432231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block return; 143381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 143481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 143581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator end = floatingObjectSet.end(); 143681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 143781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 1438f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (r->m_isDescendant) 14392fc2651226baac27029e38c9d6ef883fa32084dbSteve Block addOverflowFromChild(r->m_renderer, IntSize(xPositionForFloatIncludingMargin(r), yPositionForFloatIncludingMargin(r))); 1440231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 1441231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block return; 1442231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block} 1443231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 1444f05b935882198ccf7d81675736e3aeb089c5113aBen Murdochvoid RenderBlock::addOverflowFromPositionedObjects() 1445f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch{ 1446f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!m_positionedObjects) 1447f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch return; 1448f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1449f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch RenderBox* positionedObject; 1450f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch Iterator end = m_positionedObjects->end(); 1451f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch for (Iterator it = m_positionedObjects->begin(); it != end; ++it) { 1452f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch positionedObject = *it; 1453f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1454f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // Fixed positioned elements don't contribute to layout overflow, since they don't scroll with the content. 1455f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (positionedObject->style()->position() != FixedPosition) 1456f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch addOverflowFromChild(positionedObject); 1457f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 1458f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch} 1459f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 1460635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectbool RenderBlock::expandsToEncloseOverhangingFloats() const 1461635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project{ 1462bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen return isInlineBlockOrInlineTable() || isFloatingOrPositioned() || hasOverflowClip() || (parent() && parent()->isFlexibleBox()) 1463a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch || hasColumns() || isTableCell() || isFieldset() || isWritingModeRoot(); 1464635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} 1465635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 1466635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid RenderBlock::adjustPositionedBlock(RenderBox* child, const MarginInfo& marginInfo) 14678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 14682bde8e466a4451c7319e3a072d118917957d6554Steve Block bool isHorizontal = isHorizontalWritingMode(); 146981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch bool hasStaticBlockPosition = child->style()->hasStaticBlockPosition(isHorizontal); 147081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch RenderLayer* childLayer = child->layer(); 147181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 14722bde8e466a4451c7319e3a072d118917957d6554Steve Block childLayer->setStaticInlinePosition(borderAndPaddingStart()); 14732bde8e466a4451c7319e3a072d118917957d6554Steve Block 14742bde8e466a4451c7319e3a072d118917957d6554Steve Block int logicalTop = logicalHeight(); 14752bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!marginInfo.canCollapseWithMarginBefore()) { 14762bde8e466a4451c7319e3a072d118917957d6554Steve Block child->computeBlockDirectionMargins(this); 14772bde8e466a4451c7319e3a072d118917957d6554Steve Block int marginBefore = marginBeforeForChild(child); 14782bde8e466a4451c7319e3a072d118917957d6554Steve Block int collapsedBeforePos = marginInfo.positiveMargin(); 14792bde8e466a4451c7319e3a072d118917957d6554Steve Block int collapsedBeforeNeg = marginInfo.negativeMargin(); 14802bde8e466a4451c7319e3a072d118917957d6554Steve Block if (marginBefore > 0) { 14812bde8e466a4451c7319e3a072d118917957d6554Steve Block if (marginBefore > collapsedBeforePos) 14822bde8e466a4451c7319e3a072d118917957d6554Steve Block collapsedBeforePos = marginBefore; 14832bde8e466a4451c7319e3a072d118917957d6554Steve Block } else { 14842bde8e466a4451c7319e3a072d118917957d6554Steve Block if (-marginBefore > collapsedBeforeNeg) 14852bde8e466a4451c7319e3a072d118917957d6554Steve Block collapsedBeforeNeg = -marginBefore; 14868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 14872bde8e466a4451c7319e3a072d118917957d6554Steve Block logicalTop += (collapsedBeforePos - collapsedBeforeNeg) - marginBefore; 14882bde8e466a4451c7319e3a072d118917957d6554Steve Block } 14892bde8e466a4451c7319e3a072d118917957d6554Steve Block if (childLayer->staticBlockPosition() != logicalTop) { 14902bde8e466a4451c7319e3a072d118917957d6554Steve Block childLayer->setStaticBlockPosition(logicalTop); 14912bde8e466a4451c7319e3a072d118917957d6554Steve Block if (hasStaticBlockPosition) 1492643ca7872b450ea4efacab6188849e5aac2ba161Steve Block child->setChildNeedsLayout(true, false); 14938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 14948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 14958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 14968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::adjustFloatingBlock(const MarginInfo& marginInfo) 14978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 14988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The float should be positioned taking into account the bottom margin 14998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // of the previous flow. We add that margin into the height, get the 15008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // float positioned properly, and then subtract the margin out of the 15018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // height again. In the case of self-collapsing blocks, we always just 15028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // use the top margins, since the self-collapsing block collapsed its 15038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // own bottom margin into its top margin. 15048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 15058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Note also that the previous flow may collapse its margin into the top of 15068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // our block. If this is the case, then we do not add the margin in to our 15078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // height when computing the position of the float. This condition can be tested 1508bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // for by simply calling canCollapseWithMarginBefore. See 15098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // http://www.hixie.ch/tests/adhoc/css/box/block/margin-collapse/046.html for 15108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // an example of this scenario. 1511bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int marginOffset = marginInfo.canCollapseWithMarginBefore() ? 0 : marginInfo.margin(); 1512a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + marginOffset); 15138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project positionNewFloats(); 1514a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() - marginOffset); 15158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 15168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 15175f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianbool RenderBlock::handleSpecialChild(RenderBox* child, const MarginInfo& marginInfo) 15188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 15195f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // Handle in the given order 15205f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return handlePositionedChild(child, marginInfo) 15215f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian || handleFloatingChild(child, marginInfo) 15225f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian || handleRunInChild(child); 15238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 15248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 15258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 15265f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianbool RenderBlock::handlePositionedChild(RenderBox* child, const MarginInfo& marginInfo) 15278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 15288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isPositioned()) { 15298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project child->containingBlock()->insertPositionedObject(child); 15308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project adjustPositionedBlock(child, marginInfo); 15315f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return true; 15328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 15335f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return false; 15348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 15358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 15365f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianbool RenderBlock::handleFloatingChild(RenderBox* child, const MarginInfo& marginInfo) 15378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 15388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isFloating()) { 15398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project insertFloatingObject(child); 15408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project adjustFloatingBlock(marginInfo); 15415f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return true; 15428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 15435f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return false; 15448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 15458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 15465f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianbool RenderBlock::handleRunInChild(RenderBox* child) 15478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 15488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // See if we have a run-in element with inline children. If the 15498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // children aren't inline, then just treat the run-in as a normal 15508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // block. 1551231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (!child->isRunIn() || !child->childrenInline()) 1552231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block return false; 1553231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // FIXME: We don't handle non-block elements with run-in for now. 1554231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (!child->isRenderBlock()) 15555f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return false; 1556635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 15570bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch RenderBlock* blockRunIn = toRenderBlock(child); 15585f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian RenderObject* curr = blockRunIn->nextSibling(); 15599a26d18f4c7e98b479be700575d003f873214550John Reck if (!curr || !curr->isRenderBlock() || !curr->childrenInline() || curr->isRunIn() || curr->isAnonymous() || curr->isFloatingOrPositioned()) 15605f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return false; 15615f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 15625f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian RenderBlock* currBlock = toRenderBlock(curr); 15635f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 15645f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // Remove the old child. 15655f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian children()->removeChildNode(this, blockRunIn); 1566635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 15675f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // Create an inline. 15685f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian Node* runInNode = blockRunIn->node(); 15695f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian RenderInline* inlineRunIn = new (renderArena()) RenderInline(runInNode ? runInNode : document()); 15705f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian inlineRunIn->setStyle(blockRunIn->style()); 15715f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 15725f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian bool runInIsGenerated = child->style()->styleType() == BEFORE || child->style()->styleType() == AFTER; 15735f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 15745f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // Move the nodes from the old child to the new child, but skip any :before/:after content. It has already 15755f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // been regenerated by the new inline. 15766c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen for (RenderObject* runInChild = blockRunIn->firstChild(); runInChild;) { 15776c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen RenderObject* nextSibling = runInChild->nextSibling(); 1578643ca7872b450ea4efacab6188849e5aac2ba161Steve Block if (runInIsGenerated || (runInChild->style()->styleType() != BEFORE && runInChild->style()->styleType() != AFTER)) { 15795f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian blockRunIn->children()->removeChildNode(blockRunIn, runInChild, false); 15805f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian inlineRunIn->addChild(runInChild); // Use addChild instead of appendChildNode since it handles correct placement of the children relative to :after-generated content. 15818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 15826c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen runInChild = nextSibling; 15838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 15845f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 15852daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben 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 15862daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch // anything before the first child. e.g. details tag. See https://bugs.webkit.org/show_bug.cgi?id=58228. 15872daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch currBlock->addChild(inlineRunIn, currBlock->firstChild()); 15885f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 15895f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // If the run-in had an element, we need to set the new renderer. 15905f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (runInNode) 15915f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian runInNode->setRenderer(inlineRunIn); 15925f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 1593bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // Destroy the block run-in, which includes deleting its line box tree. 1594bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen blockRunIn->deleteLineBoxTree(); 15955f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian blockRunIn->destroy(); 15965f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 15975f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // The block acts like an inline, so just null out its 15985f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // position. 15995f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 16005f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return true; 16018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 16028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 16038f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianint RenderBlock::collapseMargins(RenderBox* child, MarginInfo& marginInfo) 16048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1605a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Get the four margin values for the child and cache them. 1606a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch const MarginValues childMargins = marginValuesForChild(child); 1607a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 16088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Get our max pos and neg top margins. 1609a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int posTop = childMargins.positiveMarginBefore(); 1610a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int negTop = childMargins.negativeMarginBefore(); 16118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 16128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // For self-collapsing blocks, collapse our bottom margins into our 16138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // top to get new posTop and negTop values. 16148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isSelfCollapsingBlock()) { 1615a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch posTop = max(posTop, childMargins.positiveMarginAfter()); 1616a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch negTop = max(negTop, childMargins.negativeMarginAfter()); 16178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 16188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 16198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // See if the top margin is quirky. We only care if this child has 16208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // margins that will collapse with us. 1621bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen bool topQuirk = child->isMarginBeforeQuirk() || style()->marginBeforeCollapse() == MDISCARD; 16228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1623bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (marginInfo.canCollapseWithMarginBefore()) { 16248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // This child is collapsing with the top of the 16258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // block. If it has larger margin values, then we need to update 16268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // our own maximal values. 16275ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen if (!document()->inQuirksMode() || !marginInfo.quirkContainer() || !topQuirk) 1628a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setMaxMarginBeforeValues(max(posTop, maxPositiveMarginBefore()), max(negTop, maxNegativeMarginBefore())); 16298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 16308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The minute any of the margins involved isn't a quirk, don't 16318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // collapse it away, even if the margin is smaller (www.webreference.com 16328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // has an example of this, a <dt> with 0.8em author-specified inside 16338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // a <dl> inside a <td>. 1634a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!marginInfo.determinedMarginBeforeQuirk() && !topQuirk && (posTop - negTop)) { 1635bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setMarginBeforeQuirk(false); 1636bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen marginInfo.setDeterminedMarginBeforeQuirk(true); 16378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 16388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1639a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!marginInfo.determinedMarginBeforeQuirk() && topQuirk && !marginBefore()) 16408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We have no top margin and our top child has a quirky margin. 16418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We will pick up this quirky margin and pass it through. 16428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // This deals with the <td><div><p> case. 16438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Don't do this for a block that split two inlines though. You do 16448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // still apply margins in this case. 1645bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setMarginBeforeQuirk(true); 16468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 16478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1648bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (marginInfo.quirkContainer() && marginInfo.atBeforeSideOfBlock() && (posTop - negTop)) 1649bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen marginInfo.setMarginBeforeQuirk(topQuirk); 16508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1651a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int beforeCollapseLogicalTop = logicalHeight(); 1652a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTop = beforeCollapseLogicalTop; 16538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isSelfCollapsingBlock()) { 16548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // This child has no height. We need to compute our 16558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // position before we collapse the child's margins together, 16568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // so that we can get an accurate position for the zero-height block. 1657a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int collapsedBeforePos = max(marginInfo.positiveMargin(), childMargins.positiveMarginBefore()); 1658a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int collapsedBeforeNeg = max(marginInfo.negativeMargin(), childMargins.negativeMarginBefore()); 1659a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setMargin(collapsedBeforePos, collapsedBeforeNeg); 16608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 16618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Now collapse the child's margins together, which means examining our 16628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // bottom margin values as well. 1663a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setPositiveMarginIfLarger(childMargins.positiveMarginAfter()); 1664a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setNegativeMarginIfLarger(childMargins.negativeMarginAfter()); 16658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1666bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (!marginInfo.canCollapseWithMarginBefore()) 16678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We need to make sure that the position of the self-collapsing block 16688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // is correct, since it could have overflowing content 16698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // that needs to be positioned correctly (e.g., a block that 16708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // had a specified height of 0 but that actually had subcontent). 1671a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTop = logicalHeight() + collapsedBeforePos - collapsedBeforeNeg; 16728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 16738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 1674bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (child->style()->marginBeforeCollapse() == MSEPARATE) { 1675a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + marginInfo.margin() + marginBeforeForChild(child)); 1676a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTop = logicalHeight(); 16778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1678bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen else if (!marginInfo.atBeforeSideOfBlock() || 1679bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen (!marginInfo.canCollapseMarginBeforeWithChildren() 1680bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen && (!document()->inQuirksMode() || !marginInfo.quirkContainer() || !marginInfo.marginBeforeQuirk()))) { 16818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We're collapsing with a previous sibling's margins and not 16828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // with the top of the block. 1683a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + max(marginInfo.positiveMargin(), posTop) - max(marginInfo.negativeMargin(), negTop)); 1684a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTop = logicalHeight(); 16858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 16868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1687a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setPositiveMargin(childMargins.positiveMarginAfter()); 1688a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setNegativeMargin(childMargins.negativeMarginAfter()); 16898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 16908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (marginInfo.margin()) 1691bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen marginInfo.setMarginAfterQuirk(child->isMarginAfterQuirk() || style()->marginAfterCollapse() == MDISCARD); 16928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 16938f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 169468513a70bcd92384395513322f1b801e7bf9c729Steve Block // If margins would pull us past the top of the next page, then we need to pull back and pretend like the margins 169568513a70bcd92384395513322f1b801e7bf9c729Steve Block // collapsed into the page edge. 169668513a70bcd92384395513322f1b801e7bf9c729Steve Block bool paginated = view()->layoutState()->isPaginated(); 1697a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (paginated && logicalTop > beforeCollapseLogicalTop) { 1698a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int oldLogicalTop = logicalTop; 16992fc2651226baac27029e38c9d6ef883fa32084dbSteve Block logicalTop = min(logicalTop, nextPageLogicalTop(beforeCollapseLogicalTop)); 1700a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + (logicalTop - oldLogicalTop)); 170168513a70bcd92384395513322f1b801e7bf9c729Steve Block } 1702a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return logicalTop; 17038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 17048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 17058f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianint RenderBlock::clearFloatsIfNeeded(RenderBox* child, MarginInfo& marginInfo, int oldTopPosMargin, int oldTopNegMargin, int yPos) 17068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 17078f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int heightIncrease = getClearDelta(child, yPos); 17088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!heightIncrease) 17098f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return yPos; 17108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 17118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isSelfCollapsingBlock()) { 17128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // For self-collapsing blocks that clear, they can still collapse their 17138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // margins with following siblings. Reset the current margins to represent 17148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the self-collapsing block's margins only. 1715231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // CSS2.1 states: 1716231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // "An element that has had clearance applied to it never collapses its top margin with its parent block's bottom margin. 1717231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Therefore if we are at the bottom of the block, let's go ahead and reset margins to only include the 1718231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // self-collapsing block's bottom margin. 1719231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block bool atBottomOfBlock = true; 1720231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block for (RenderBox* curr = child->nextSiblingBox(); curr && atBottomOfBlock; curr = curr->nextSiblingBox()) { 1721231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (!curr->isFloatingOrPositioned()) 1722231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block atBottomOfBlock = false; 1723231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 1724a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 1725a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch MarginValues childMargins = marginValuesForChild(child); 1726231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (atBottomOfBlock) { 1727a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setPositiveMargin(childMargins.positiveMarginAfter()); 1728a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setNegativeMargin(childMargins.negativeMarginAfter()); 1729231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } else { 1730a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setPositiveMargin(max(childMargins.positiveMarginBefore(), childMargins.positiveMarginAfter())); 1731a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch marginInfo.setNegativeMargin(max(childMargins.negativeMarginBefore(), childMargins.negativeMarginAfter())); 1732231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 17338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1734231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Adjust our height such that we are ready to be collapsed with subsequent siblings (or the bottom 1735231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // of the parent block). 1736bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setLogicalHeight(child->y() - max(0, marginInfo.margin())); 17378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else 17388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Increase our height by the amount we had to clear. 1739bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setLogicalHeight(height() + heightIncrease); 17408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1741bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (marginInfo.canCollapseWithMarginBefore()) { 17428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We can no longer collapse with the top of the block since a clear 17438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // occurred. The empty blocks collapse into the cleared block. 17448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: This isn't quite correct. Need clarification for what to do 17458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // if the height the cleared block is offset by is smaller than the 17468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // margins involved. 1747bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setMaxMarginBeforeValues(oldTopPosMargin, oldTopNegMargin); 1748bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen marginInfo.setAtBeforeSideOfBlock(false); 17498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 17508f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 17518f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return yPos + heightIncrease; 17528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 17538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1754a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::estimateLogicalTopPosition(RenderBox* child, const MarginInfo& marginInfo) 17558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 17568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: We need to eliminate the estimation of vertical position, because when it's wrong we sometimes trigger a pathological 17578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // relayout if there are intruding floats. 1758a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTopEstimate = logicalHeight(); 1759bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (!marginInfo.canCollapseWithMarginBefore()) { 1760a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int childMarginBefore = child->selfNeedsLayout() ? marginBeforeForChild(child) : collapsedMarginBeforeForChild(child); 1761a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTopEstimate += max(marginInfo.margin(), childMarginBefore); 17628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 176368513a70bcd92384395513322f1b801e7bf9c729Steve Block 176468513a70bcd92384395513322f1b801e7bf9c729Steve Block bool paginated = view()->layoutState()->isPaginated(); 176568513a70bcd92384395513322f1b801e7bf9c729Steve Block 1766a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Adjust logicalTopEstimate down to the next page if the margins are so large that we don't fit on the current 176768513a70bcd92384395513322f1b801e7bf9c729Steve Block // page. 1768a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (paginated && logicalTopEstimate > logicalHeight()) 17692fc2651226baac27029e38c9d6ef883fa32084dbSteve Block logicalTopEstimate = min(logicalTopEstimate, nextPageLogicalTop(logicalHeight())); 177068513a70bcd92384395513322f1b801e7bf9c729Steve Block 1771a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTopEstimate += getClearDelta(child, logicalTopEstimate); 177268513a70bcd92384395513322f1b801e7bf9c729Steve Block 177368513a70bcd92384395513322f1b801e7bf9c729Steve Block if (paginated) { 177468513a70bcd92384395513322f1b801e7bf9c729Steve Block // If the object has a page or column break value of "before", then we should shift to the top of the next page. 1775a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTopEstimate = applyBeforeBreak(child, logicalTopEstimate); 177668513a70bcd92384395513322f1b801e7bf9c729Steve Block 177768513a70bcd92384395513322f1b801e7bf9c729Steve 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. 1778a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTopEstimate = adjustForUnsplittableChild(child, logicalTopEstimate); 177968513a70bcd92384395513322f1b801e7bf9c729Steve Block 178068513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!child->selfNeedsLayout() && child->isRenderBlock()) 1781a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTopEstimate += toRenderBlock(child)->paginationStrut(); 178268513a70bcd92384395513322f1b801e7bf9c729Steve Block } 178368513a70bcd92384395513322f1b801e7bf9c729Steve Block 1784a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return logicalTopEstimate; 17858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 17868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1787a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::determineLogicalLeftPositionForChild(RenderBox* child) 17888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1789a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int startPosition = borderStart() + paddingStart(); 1790a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int totalAvailableLogicalWidth = borderAndPaddingLogicalWidth() + availableLogicalWidth(); 1791a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 1792a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Add in our start margin. 1793a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int childMarginStart = marginStartForChild(child); 1794a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int newPosition = startPosition + childMarginStart; 17958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1796a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Some objects (e.g., tables, horizontal rules, overflow:auto blocks) avoid floats. They need 1797a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // to shift over as necessary to dodge any floats that might get in the way. 1798a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (child->avoidsFloats()) { 1799a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int startOff = style()->isLeftToRightDirection() ? logicalLeftOffsetForLine(logicalHeight(), false) : totalAvailableLogicalWidth - logicalRightOffsetForLine(logicalHeight(), false); 1800a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (style()->textAlign() != WEBKIT_CENTER && !child->style()->marginStartUsing(style()).isAuto()) { 1801a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (childMarginStart < 0) 1802a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch startOff += childMarginStart; 1803a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch newPosition = max(newPosition, startOff); // Let the float sit in the child's margin if it can fit. 1804a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else if (startOff != startPosition) { 1805a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The object is shifting to the "end" side of the block. The object might be centered, so we need to 1806a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // recalculate our inline direction margins. Note that the containing block content 1807a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // width computation will take into account the delta between |startOff| and |startPosition| 1808a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // so that we can just pass the content width in directly to the |computeMarginsInContainingBlockInlineDirection| 1809a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // function. 1810a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->computeInlineDirectionMargins(this, availableLogicalWidthForLine(logicalTopForChild(child), false), logicalWidthForChild(child)); 1811a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch newPosition = startOff + marginStartForChild(child); 18128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 18138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1814a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 1815a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalLeftForChild(child, style()->isLeftToRightDirection() ? newPosition : totalAvailableLogicalWidth - newPosition - logicalWidthForChild(child), ApplyLayoutDelta); 18168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 18178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 18188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::setCollapsedBottomMargin(const MarginInfo& marginInfo) 18198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1820bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (marginInfo.canCollapseWithMarginAfter() && !marginInfo.canCollapseWithMarginBefore()) { 18218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Update our max pos/neg bottom margins, since we collapsed our bottom margins 18228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // with our children. 1823a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setMaxMarginAfterValues(max(maxPositiveMarginAfter(), marginInfo.positiveMargin()), max(maxNegativeMarginAfter(), marginInfo.negativeMargin())); 18248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1825bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (!marginInfo.marginAfterQuirk()) 1826bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setMarginAfterQuirk(false); 18278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1828a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (marginInfo.marginAfterQuirk() && marginAfter() == 0) 18298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We have no bottom margin and our last child has a quirky margin. 18308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We will pick up this quirky margin and pass it through. 18318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // This deals with the <td><div><p> case. 1832bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setMarginAfterQuirk(true); 18338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 18348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 18358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1836a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::handleAfterSideOfBlock(int beforeSide, int afterSide, MarginInfo& marginInfo) 18378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1838bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen marginInfo.setAtAfterSideOfBlock(true); 18398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 18408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If we can't collapse with children then go ahead and add in the bottom margin. 1841bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (!marginInfo.canCollapseWithMarginAfter() && !marginInfo.canCollapseWithMarginBefore() 1842bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen && (!document()->inQuirksMode() || !marginInfo.quirkContainer() || !marginInfo.marginAfterQuirk())) 1843a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + marginInfo.margin()); 18448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 18458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Now add in our bottom border/padding. 1846a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + afterSide); 18478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 18488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Negative margins can cause our height to shrink below our minimal height (border/padding). 18498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If this happens, ensure that the computed height is increased to the minimal height. 1850a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(max(logicalHeight(), beforeSide + afterSide)); 18518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 18528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Update our bottom collapsed margin info. 18538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project setCollapsedBottomMargin(marginInfo); 18548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 18558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1856a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::setLogicalLeftForChild(RenderBox* child, int logicalLeft, ApplyLayoutDeltaMode applyDelta) 1857a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 18582bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) { 1859a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (applyDelta == ApplyLayoutDelta) 1860a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch view()->addLayoutDelta(IntSize(child->x() - logicalLeft, 0)); 1861a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setX(logicalLeft); 1862a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else { 1863a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (applyDelta == ApplyLayoutDelta) 1864a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch view()->addLayoutDelta(IntSize(0, child->y() - logicalLeft)); 1865a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setY(logicalLeft); 1866a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 1867a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 1868a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 1869a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::setLogicalTopForChild(RenderBox* child, int logicalTop, ApplyLayoutDeltaMode applyDelta) 1870a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 18712bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) { 1872a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (applyDelta == ApplyLayoutDelta) 1873a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch view()->addLayoutDelta(IntSize(0, child->y() - logicalTop)); 1874a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setY(logicalTop); 1875a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else { 1876a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (applyDelta == ApplyLayoutDelta) 1877a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch view()->addLayoutDelta(IntSize(child->x() - logicalTop, 0)); 1878a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setX(logicalTop); 1879a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 1880a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 1881a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 1882a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::layoutBlockChildren(bool relayoutChildren, int& maxFloatLogicalBottom) 18838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 18848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (gPercentHeightDescendantsMap) { 18858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (HashSet<RenderBox*>* descendants = gPercentHeightDescendantsMap->get(this)) { 18868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HashSet<RenderBox*>::iterator end = descendants->end(); 18878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (HashSet<RenderBox*>::iterator it = descendants->begin(); it != end; ++it) { 18888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderBox* box = *it; 18898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (box != this) { 18908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (box->normalChildNeedsLayout()) 18918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 18928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project box->setChildNeedsLayout(true, false); 18938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project box = box->containingBlock(); 18948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(box); 18958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!box) 18968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 18978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 18988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 18998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 19008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 19018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1902a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int beforeEdge = borderBefore() + paddingBefore(); 1903a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int afterEdge = borderAfter() + paddingAfter() + scrollbarLogicalHeight(); 19048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1905a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(beforeEdge); 19068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 19078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The margin struct caches all our current margin collapsing state. The compact struct caches state when we encounter compacts, 1908a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch MarginInfo marginInfo(this, beforeEdge, afterEdge); 19098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 19108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Fieldsets need to find their legend and position it inside the border of the object. 19114576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang // The legend then gets skipped during normal layout. The same is true for ruby text. 19124576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang // It doesn't get included in the normal layout process but is instead skipped. 19134576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang RenderObject* childToExclude = layoutSpecialExcludedChild(relayoutChildren); 19148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1915a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int previousFloatLogicalBottom = 0; 1916a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch maxFloatLogicalBottom = 0; 19178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 19185f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian RenderBox* next = firstChildBox(); 19195f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 19205f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian while (next) { 19215f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian RenderBox* child = next; 19225f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian next = child->nextSiblingBox(); 19235f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 19244576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang if (childToExclude == child) 19254576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang continue; // Skip this child, since it will be positioned by the specialized subclass (fieldsets and ruby runs). 19268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 19278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Make sure we layout children if they need it. 19288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: Technically percentage height objects only need a relayout if their percentage isn't going to be turned into 19298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // an auto value. Add a method to determine this, so that we can avoid the relayout. 1930a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (relayoutChildren || ((child->style()->logicalHeight().isPercent() || child->style()->logicalMinHeight().isPercent() || child->style()->logicalMaxHeight().isPercent()) && !isRenderView())) 19318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project child->setChildNeedsLayout(true, false); 19328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1933a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // If relayoutChildren is set and the child has percentage padding, we also need to invalidate the child's pref widths. 1934a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (relayoutChildren && (child->style()->paddingStart().isPercent() || child->style()->paddingEnd().isPercent())) 1935bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen child->setPreferredLogicalWidthsDirty(true, false); 19368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 19378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Handle the four types of special elements first. These include positioned content, floating content, compacts and 19388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The 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. 19395f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (handleSpecialChild(child, marginInfo)) 19408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 19418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1942231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Lay out the child. 1943a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch layoutBlockChild(child, marginInfo, previousFloatLogicalBottom, maxFloatLogicalBottom); 1944231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 1945231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 1946231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Now do the handling of the bottom of the block, adding in our bottom border/padding and 1947231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // determining the correct collapsed bottom margin information. 1948a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch handleAfterSideOfBlock(beforeEdge, afterEdge, marginInfo); 1949231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block} 19508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1951a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::layoutBlockChild(RenderBox* child, MarginInfo& marginInfo, int& previousFloatLogicalBottom, int& maxFloatLogicalBottom) 1952231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block{ 1953a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int oldPosMarginBefore = maxPositiveMarginBefore(); 1954a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int oldNegMarginBefore = maxNegativeMarginBefore(); 19558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1956a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The child is a normal flow object. Compute the margins we will use for collapsing now. 1957bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen child->computeBlockDirectionMargins(this); 19588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1959a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Do not allow a collapse if the margin-before-collapse style is set to SEPARATE. 1960bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (child->style()->marginBeforeCollapse() == MSEPARATE) { 1961bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen marginInfo.setAtBeforeSideOfBlock(false); 1962231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block marginInfo.clearMargin(); 1963231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 1964231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 1965a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Try to guess our correct logical top position. In most cases this guess will 1966a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // be correct. Only if we're wrong (when we compute the real logical top position) 1967231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // will we have to potentially relayout. 1968a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTopEstimate = estimateLogicalTopPosition(child, marginInfo); 1969231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 1970231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Cache our old rect so that we can dirty the proper repaint rects if the child moves. 1971231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block IntRect oldRect(child->x(), child->y() , child->width(), child->height()); 1972a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int oldLogicalTop = logicalTopForChild(child); 1973a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 1974635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#ifndef NDEBUG 1975231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block IntSize oldLayoutDelta = view()->layoutDelta(); 1976635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#endif 1977231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Go ahead and position the child as though it didn't collapse with the top. 1978a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalTopForChild(child, logicalTopEstimate, ApplyLayoutDelta); 1979231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 198068513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderBlock* childRenderBlock = child->isRenderBlock() ? toRenderBlock(child) : 0; 1981231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block bool markDescendantsWithFloats = false; 1982a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (logicalTopEstimate != oldLogicalTop && !child->avoidsFloats() && childRenderBlock && childRenderBlock->containsFloats()) 1983231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block markDescendantsWithFloats = true; 1984231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block else if (!child->avoidsFloats() || child->shrinkToAvoidFloats()) { 1985231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // If an element might be affected by the presence of floats, then always mark it for 1986231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // layout. 1987a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int fb = max(previousFloatLogicalBottom, lowestFloatLogicalBottom()); 1988a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (fb > logicalTopEstimate) 19898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project markDescendantsWithFloats = true; 1990231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 19918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 199268513a70bcd92384395513322f1b801e7bf9c729Steve Block if (childRenderBlock) { 1993231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (markDescendantsWithFloats) 199468513a70bcd92384395513322f1b801e7bf9c729Steve Block childRenderBlock->markAllDescendantsWithFloatsForLayout(); 1995a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!child->isWritingModeRoot()) 1996a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch previousFloatLogicalBottom = max(previousFloatLogicalBottom, oldLogicalTop + childRenderBlock->lowestFloatLogicalBottom()); 1997231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 19988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1999a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!child->needsLayout()) 2000a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->markForPaginationRelayoutIfNeeded(); 200168513a70bcd92384395513322f1b801e7bf9c729Steve Block 2002231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block bool childHadLayout = child->m_everHadLayout; 2003231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block bool childNeededLayout = child->needsLayout(); 2004231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (childNeededLayout) 2005231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block child->layout(); 20068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 200768513a70bcd92384395513322f1b801e7bf9c729Steve Block // Cache if we are at the top of the block right now. 2008bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen bool atBeforeSideOfBlock = marginInfo.atBeforeSideOfBlock(); 200968513a70bcd92384395513322f1b801e7bf9c729Steve Block 2010231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Now determine the correct ypos based off examination of collapsing margin 2011231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // values. 2012a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTopBeforeClear = collapseMargins(child, marginInfo); 20138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2014231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Now check for clear. 2015a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTopAfterClear = clearFloatsIfNeeded(child, marginInfo, oldPosMarginBefore, oldNegMarginBefore, logicalTopBeforeClear); 20168f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 2017a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bool paginated = view()->layoutState()->isPaginated(); 201868513a70bcd92384395513322f1b801e7bf9c729Steve Block if (paginated) { 2019a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int oldTop = logicalTopAfterClear; 202068513a70bcd92384395513322f1b801e7bf9c729Steve Block 202168513a70bcd92384395513322f1b801e7bf9c729Steve Block // If the object has a page or column break value of "before", then we should shift to the top of the next page. 2022a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTopAfterClear = applyBeforeBreak(child, logicalTopAfterClear); 202368513a70bcd92384395513322f1b801e7bf9c729Steve Block 202468513a70bcd92384395513322f1b801e7bf9c729Steve 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. 2025a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTopBeforeUnsplittableAdjustment = logicalTopAfterClear; 2026a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTopAfterUnsplittableAdjustment = adjustForUnsplittableChild(child, logicalTopAfterClear); 202768513a70bcd92384395513322f1b801e7bf9c729Steve Block 202868513a70bcd92384395513322f1b801e7bf9c729Steve Block int paginationStrut = 0; 2029a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int unsplittableAdjustmentDelta = logicalTopAfterUnsplittableAdjustment - logicalTopBeforeUnsplittableAdjustment; 203068513a70bcd92384395513322f1b801e7bf9c729Steve Block if (unsplittableAdjustmentDelta) 203168513a70bcd92384395513322f1b801e7bf9c729Steve Block paginationStrut = unsplittableAdjustmentDelta; 203268513a70bcd92384395513322f1b801e7bf9c729Steve Block else if (childRenderBlock && childRenderBlock->paginationStrut()) 203368513a70bcd92384395513322f1b801e7bf9c729Steve Block paginationStrut = childRenderBlock->paginationStrut(); 203468513a70bcd92384395513322f1b801e7bf9c729Steve Block 203568513a70bcd92384395513322f1b801e7bf9c729Steve Block if (paginationStrut) { 203668513a70bcd92384395513322f1b801e7bf9c729Steve Block // We are willing to propagate out to our parent block as long as we were at the top of the block prior 203768513a70bcd92384395513322f1b801e7bf9c729Steve Block // to collapsing our margins, and as long as we didn't clear or move as a result of other pagination. 2038a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (atBeforeSideOfBlock && oldTop == logicalTopBeforeClear && !isPositioned() && !isTableCell()) { 203968513a70bcd92384395513322f1b801e7bf9c729Steve Block // FIXME: Should really check if we're exceeding the page height before propagating the strut, but we don't 204068513a70bcd92384395513322f1b801e7bf9c729Steve Block // have all the information to do so (the strut only has the remaining amount to push). Gecko gets this wrong too 204168513a70bcd92384395513322f1b801e7bf9c729Steve Block // and pushes to the next page anyway, so not too concerned about it. 2042a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setPaginationStrut(logicalTopAfterClear + paginationStrut); 204368513a70bcd92384395513322f1b801e7bf9c729Steve Block if (childRenderBlock) 204468513a70bcd92384395513322f1b801e7bf9c729Steve Block childRenderBlock->setPaginationStrut(0); 204568513a70bcd92384395513322f1b801e7bf9c729Steve Block } else 2046a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTopAfterClear += paginationStrut; 204768513a70bcd92384395513322f1b801e7bf9c729Steve Block } 204868513a70bcd92384395513322f1b801e7bf9c729Steve Block 204968513a70bcd92384395513322f1b801e7bf9c729Steve Block // Similar to how we apply clearance. Go ahead and boost height() to be the place where we're going to position the child. 2050a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + (logicalTopAfterClear - oldTop)); 205168513a70bcd92384395513322f1b801e7bf9c729Steve Block } 205268513a70bcd92384395513322f1b801e7bf9c729Steve Block 2053a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalTopForChild(child, logicalTopAfterClear, ApplyLayoutDelta); 2054231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 2055a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Now we have a final top position. See if it really does end up being different from our estimate. 2056a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (logicalTopAfterClear != logicalTopEstimate) { 2057231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (child->shrinkToAvoidFloats()) { 2058231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // The child's width depends on the line width. 2059231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // When the child shifts to clear an item, its width can 2060231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // change (because it has more available line width). 2061231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // So go ahead and mark the item as dirty. 2062231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block child->setChildNeedsLayout(true, false); 20638f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 206468513a70bcd92384395513322f1b801e7bf9c729Steve Block if (childRenderBlock) { 206568513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!child->avoidsFloats() && childRenderBlock->containsFloats()) 206668513a70bcd92384395513322f1b801e7bf9c729Steve Block childRenderBlock->markAllDescendantsWithFloatsForLayout(); 2067a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!child->needsLayout()) 2068a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->markForPaginationRelayoutIfNeeded(); 206968513a70bcd92384395513322f1b801e7bf9c729Steve Block } 207068513a70bcd92384395513322f1b801e7bf9c729Steve Block 2071231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Our guess was wrong. Make the child lay itself out again. 2072231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block child->layoutIfNeeded(); 2073231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 20748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2075231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // We are no longer at the top of the block if we encounter a non-empty child. 2076231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // This has to be done after checking for clear, so that margins can be reset if a clear occurred. 2077bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (marginInfo.atBeforeSideOfBlock() && !child->isSelfCollapsingBlock()) 2078bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen marginInfo.setAtBeforeSideOfBlock(false); 20798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2080a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Now place the child in the correct left position 2081a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch determineLogicalLeftPositionForChild(child); 20828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2083231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Update our height now that the child has been placed in the correct position. 2084a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + logicalHeightForChild(child)); 2085bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (child->style()->marginAfterCollapse() == MSEPARATE) { 2086a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeight(logicalHeight() + marginAfterForChild(child)); 2087231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block marginInfo.clearMargin(); 2088231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 2089231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // If the child has overhanging floats that intrude into following siblings (or possibly out 2090231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // of this block), then the parent gets notified of the floats now. 209168513a70bcd92384395513322f1b801e7bf9c729Steve Block if (childRenderBlock && childRenderBlock->containsFloats()) 2092a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch maxFloatLogicalBottom = max(maxFloatLogicalBottom, addOverhangingFloats(toRenderBlock(child), -child->logicalLeft(), -child->logicalTop(), !childNeededLayout)); 20938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2094231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block IntSize childOffset(child->x() - oldRect.x(), child->y() - oldRect.y()); 2095231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (childOffset.width() || childOffset.height()) { 2096231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block view()->addLayoutDelta(childOffset); 20978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2098231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // If the child moved, we have to repaint it as well as any floating/positioned 2099231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // descendants. An exception is if we need a layout. In this case, we know we're going to 2100231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // repaint ourselves (and the child) anyway. 2101231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (childHadLayout && !selfNeedsLayout() && child->checkForRepaintDuringLayout()) 2102231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block child->repaintDuringLayoutIfMoved(oldRect); 2103231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 21048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2105231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (!childHadLayout && child->checkForRepaintDuringLayout()) { 2106231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block child->repaint(); 2107231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block child->repaintOverhangingFloats(true); 21088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 21098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 211068513a70bcd92384395513322f1b801e7bf9c729Steve Block if (paginated) { 211168513a70bcd92384395513322f1b801e7bf9c729Steve Block // Check for an after page/column break. 21122fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int newHeight = applyAfterBreak(child, logicalHeight(), marginInfo); 211368513a70bcd92384395513322f1b801e7bf9c729Steve Block if (newHeight != height()) 2114bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setLogicalHeight(newHeight); 211568513a70bcd92384395513322f1b801e7bf9c729Steve Block } 211668513a70bcd92384395513322f1b801e7bf9c729Steve Block 2117231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block ASSERT(oldLayoutDelta == view()->layoutDelta()); 21188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 21198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 21202bde8e466a4451c7319e3a072d118917957d6554Steve Blockvoid RenderBlock::simplifiedNormalFlowLayout() 21218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 21222bde8e466a4451c7319e3a072d118917957d6554Steve Block if (childrenInline()) { 21232bde8e466a4451c7319e3a072d118917957d6554Steve Block ListHashSet<RootInlineBox*> lineBoxes; 21242bde8e466a4451c7319e3a072d118917957d6554Steve Block bool endOfInline = false; 21252bde8e466a4451c7319e3a072d118917957d6554Steve Block RenderObject* o = bidiFirst(this, 0, false); 21262bde8e466a4451c7319e3a072d118917957d6554Steve Block while (o) { 21272bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!o->isPositioned() && (o->isReplaced() || o->isFloating())) { 21282bde8e466a4451c7319e3a072d118917957d6554Steve Block o->layoutIfNeeded(); 21292bde8e466a4451c7319e3a072d118917957d6554Steve Block if (toRenderBox(o)->inlineBoxWrapper()) { 21302bde8e466a4451c7319e3a072d118917957d6554Steve Block RootInlineBox* box = toRenderBox(o)->inlineBoxWrapper()->root(); 21312bde8e466a4451c7319e3a072d118917957d6554Steve Block lineBoxes.add(box); 21322bde8e466a4451c7319e3a072d118917957d6554Steve Block } 21332bde8e466a4451c7319e3a072d118917957d6554Steve Block } else if (o->isText() || (o->isRenderInline() && !endOfInline)) 21342bde8e466a4451c7319e3a072d118917957d6554Steve Block o->setNeedsLayout(false); 21352bde8e466a4451c7319e3a072d118917957d6554Steve Block o = bidiNext(this, o, 0, false, &endOfInline); 21362bde8e466a4451c7319e3a072d118917957d6554Steve Block } 21372bde8e466a4451c7319e3a072d118917957d6554Steve Block 21382bde8e466a4451c7319e3a072d118917957d6554Steve Block // FIXME: Glyph overflow will get lost in this case, but not really a big deal. 21392bde8e466a4451c7319e3a072d118917957d6554Steve Block GlyphOverflowAndFallbackFontsMap textBoxDataMap; 21402bde8e466a4451c7319e3a072d118917957d6554Steve Block for (ListHashSet<RootInlineBox*>::const_iterator it = lineBoxes.begin(); it != lineBoxes.end(); ++it) { 21412bde8e466a4451c7319e3a072d118917957d6554Steve Block RootInlineBox* box = *it; 21422daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch box->computeOverflow(box->lineTop(), box->lineBottom(), textBoxDataMap); 21432bde8e466a4451c7319e3a072d118917957d6554Steve Block } 21442bde8e466a4451c7319e3a072d118917957d6554Steve Block } else { 21452bde8e466a4451c7319e3a072d118917957d6554Steve Block for (RenderBox* box = firstChildBox(); box; box = box->nextSiblingBox()) { 21462bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!box->isPositioned()) 21472bde8e466a4451c7319e3a072d118917957d6554Steve Block box->layoutIfNeeded(); 21482bde8e466a4451c7319e3a072d118917957d6554Steve Block } 21492bde8e466a4451c7319e3a072d118917957d6554Steve Block } 21502bde8e466a4451c7319e3a072d118917957d6554Steve Block} 21512bde8e466a4451c7319e3a072d118917957d6554Steve Block 21522bde8e466a4451c7319e3a072d118917957d6554Steve Blockbool RenderBlock::simplifiedLayout() 21532bde8e466a4451c7319e3a072d118917957d6554Steve Block{ 21542bde8e466a4451c7319e3a072d118917957d6554Steve Block if ((!posChildNeedsLayout() && !needsSimplifiedNormalFlowLayout()) || normalChildNeedsLayout() || selfNeedsLayout()) 21558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 21568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 21576b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner LayoutStateMaintainer statePusher(view(), this, IntSize(x(), y()), hasColumns() || hasTransform() || hasReflection() || style()->isFlippedBlocksWritingMode()); 21582bde8e466a4451c7319e3a072d118917957d6554Steve Block 21592daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch if (needsPositionedMovementLayout() && !tryLayoutDoingPositionedMovementOnly()) 21602daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch return false; 21618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 21622bde8e466a4451c7319e3a072d118917957d6554Steve Block // Lay out positioned descendants or objects that just need to recompute overflow. 21632bde8e466a4451c7319e3a072d118917957d6554Steve Block if (needsSimplifiedNormalFlowLayout()) 21642bde8e466a4451c7319e3a072d118917957d6554Steve Block simplifiedNormalFlowLayout(); 21652bde8e466a4451c7319e3a072d118917957d6554Steve Block 21662bde8e466a4451c7319e3a072d118917957d6554Steve Block // Lay out our positioned objects if our positioned child bit is set. 21672bde8e466a4451c7319e3a072d118917957d6554Steve Block if (posChildNeedsLayout()) 21682bde8e466a4451c7319e3a072d118917957d6554Steve Block layoutPositionedObjects(false); 21698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2170f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // Recompute our overflow information. 2171f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // FIXME: We could do better here by computing a temporary overflow object from layoutPositionedObjects and only 2172f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // updating our overflow if we either used to have overflow or if the new temporary object has overflow. 2173f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // For now just always recompute overflow. This is no worse performance-wise than the old code that called rightmostPosition and 2174f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // lowestPosition on every relayout so it's not a regression. 2175f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch m_overflow.clear(); 2176f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch computeOverflow(clientLogicalBottom(), true); 2177f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 2178635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project statePusher.pop(); 2179f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 2180f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch updateLayerTransform(); 21818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 21820bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch updateScrollInfoAfterLayout(); 21838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 21848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project setNeedsLayout(false); 21858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 21868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 21878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 21888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::layoutPositionedObjects(bool relayoutChildren) 21898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2190f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!m_positionedObjects) 2191f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch return; 2192f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 2193f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (hasColumns()) 2194f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch view()->layoutState()->clearPaginationInformation(); // Positioned objects are not part of the column flow, so they don't paginate with the columns. 219568513a70bcd92384395513322f1b801e7bf9c729Steve Block 2196f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch RenderBox* r; 2197f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch Iterator end = m_positionedObjects->end(); 2198f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch for (Iterator it = m_positionedObjects->begin(); it != end; ++it) { 2199f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch r = *it; 2200f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // When a non-positioned block element moves, it may have positioned children that are implicitly positioned relative to the 2201f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // non-positioned block. Rather than trying to detect all of these movement cases, we just always lay out positioned 2202f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // objects that are positioned implicitly like this. Such objects are rare, and so in typical DHTML menu usage (where everything is 2203f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // positioned explicitly) this should not incur a performance penalty. 22042bde8e466a4451c7319e3a072d118917957d6554Steve Block if (relayoutChildren || (r->style()->hasStaticBlockPosition(isHorizontalWritingMode()) && r->parent() != this && r->parent()->isBlockFlow())) 2205f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch r->setChildNeedsLayout(true, false); 22068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2207f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // If relayoutChildren is set and we have percentage padding, we also need to invalidate the child's pref widths. 2208f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (relayoutChildren && (r->style()->paddingStart().isPercent() || r->style()->paddingEnd().isPercent())) 2209f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch r->setPreferredLogicalWidthsDirty(true, false); 221068513a70bcd92384395513322f1b801e7bf9c729Steve Block 2211f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!r->needsLayout()) 2212f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch r->markForPaginationRelayoutIfNeeded(); 2213f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 2214f05b935882198ccf7d81675736e3aeb089c5113aBen 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 2215f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // and we hit the available width constraint, the layoutIfNeeded() will catch it and do a full layout. 22162daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch if (r->needsPositionedMovementLayoutOnly() && r->tryLayoutDoingPositionedMovementOnly()) 22172daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch r->setNeedsLayout(false); 2218f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch r->layoutIfNeeded(); 22198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 2220f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 2221f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (hasColumns()) 2222f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch view()->layoutState()->m_columnInfo = columnInfo(); // FIXME: Kind of gross. We just put this back into the layout state so that pop() will work. 22238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 22248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 22258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::markPositionedObjectsForLayout() 22268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 22278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_positionedObjects) { 2228635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderBox* r; 22298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Iterator end = m_positionedObjects->end(); 22308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (Iterator it = m_positionedObjects->begin(); it != end; ++it) { 22318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project r = *it; 22328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project r->setChildNeedsLayout(true); 22338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 22348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 22358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 22368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2237a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::markForPaginationRelayoutIfNeeded() 2238a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 2239a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch ASSERT(!needsLayout()); 2240a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (needsLayout()) 2241a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return; 2242a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 22432fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (view()->layoutState()->pageLogicalHeightChanged() || (view()->layoutState()->pageLogicalHeight() && view()->layoutState()->pageLogicalOffset(logicalTop()) != pageLogicalOffset())) 2244a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setChildNeedsLayout(true, false); 2245a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 2246a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 22478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::repaintOverhangingFloats(bool paintAllDescendants) 22488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 22498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Repaint any overhanging floats (if we know we're the one to paint them). 225054cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block // Otherwise, bail out. 225154cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block if (!hasOverhangingFloats()) 225254cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block return; 22538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 225454cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block // FIXME: Avoid disabling LayoutState. At the very least, don't disable it for floats originating 225554cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block // in this block. Better yet would be to push extra state for the containers of other floats. 225654cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block view()->disableLayoutState(); 225754cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 225854cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block FloatingObjectSetIterator end = floatingObjectSet.end(); 225954cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 226054cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block FloatingObject* r = *it; 226154cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block // Only repaint the object if it is overhanging, is not in its own layer, and 226254cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block // is our responsibility to paint (m_shouldPaint is set). When paintAllDescendants is true, the latter 226354cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block // condition is replaced with being a descendant of us. 226454cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block if (logicalBottomForFloat(r) > logicalHeight() && ((paintAllDescendants && r->m_renderer->isDescendantOf(this)) || r->m_shouldPaint) && !r->m_renderer->hasSelfPaintingLayer()) { 226554cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block r->m_renderer->repaint(); 226654cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block r->m_renderer->repaintOverhangingFloats(); 22678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 22688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 226954cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block view()->enableLayoutState(); 22708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 22718f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 22728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::paint(PaintInfo& paintInfo, int tx, int ty) 22738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2274635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project tx += x(); 2275635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project ty += y(); 22768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 22778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project PaintPhase phase = paintInfo.phase; 22788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 22798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Check if we need to do anything at all. 22808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: Could eliminate the isRoot() check if we fix background painting so that the RenderView 22818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // paints the root's background. 2282635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (!isRoot()) { 2283f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch IntRect overflowBox = visualOverflowRect(); 22842bde8e466a4451c7319e3a072d118917957d6554Steve Block flipForWritingMode(overflowBox); 22858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project overflowBox.inflate(maximalOutlineSize(paintInfo.phase)); 22868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project overflowBox.move(tx, ty); 22878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!overflowBox.intersects(paintInfo.rect)) 22888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 22898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 22908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 22918f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian bool pushedClip = pushContentsClip(paintInfo, tx, ty); 22928f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian paintObject(paintInfo, tx, ty); 22938f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (pushedClip) 22948f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian popContentsClip(paintInfo, phase, tx, ty); 22958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 22968f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // Our scrollbar widgets paint exactly when we tell them to, so that they work properly with 22978f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // z-index. We paint after we painted the background/border, so that the scrollbars will 22988f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // sit above the background/border. 2299ca9cb53ed1119a3fd98fafa0972ffeb56dee1c24Steve Block if (hasOverflowClip() && style()->visibility() == VISIBLE && (phase == PaintPhaseBlockBackground || phase == PaintPhaseChildBlockBackground) && paintInfo.shouldPaintWithinRoot(this)) 23008f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian layer()->paintOverflowControls(paintInfo.context, tx, ty, paintInfo.rect); 23018f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 23028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 23038f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::paintColumnRules(PaintInfo& paintInfo, int tx, int ty) 23048f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 2305dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block const Color& ruleColor = style()->visitedDependentColor(CSSPropertyWebkitColumnRuleColor); 23068f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian bool ruleTransparent = style()->columnRuleIsTransparent(); 23078f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian EBorderStyle ruleStyle = style()->columnRuleStyle(); 23088f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int ruleWidth = style()->columnRuleWidth(); 23098f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int colGap = columnGap(); 23108f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian bool renderRule = ruleStyle > BHIDDEN && !ruleTransparent && ruleWidth <= colGap; 23118f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!renderRule) 23128f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return; 23138f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 23148f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // We need to do multiple passes, breaking up our child painting into strips. 23155abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick ColumnInfo* colInfo = columnInfo(); 231668513a70bcd92384395513322f1b801e7bf9c729Steve Block unsigned colCount = columnCount(colInfo); 23172fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int currLogicalLeftOffset = style()->isLeftToRightDirection() ? 0 : contentLogicalWidth(); 23182fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int ruleAdd = logicalLeftOffsetForContent(); 23192fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int ruleLogicalLeft = style()->isLeftToRightDirection() ? 0 : contentLogicalWidth(); 23208f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian for (unsigned i = 0; i < colCount; i++) { 232168513a70bcd92384395513322f1b801e7bf9c729Steve Block IntRect colRect = columnRectAt(colInfo, i); 23228f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 23232bde8e466a4451c7319e3a072d118917957d6554Steve Block int inlineDirectionSize = isHorizontalWritingMode() ? colRect.width() : colRect.height(); 23242fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 23258f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // Move to the next position. 2326a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (style()->isLeftToRightDirection()) { 23272fc2651226baac27029e38c9d6ef883fa32084dbSteve Block ruleLogicalLeft += inlineDirectionSize + colGap / 2; 23282fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalLeftOffset += inlineDirectionSize + colGap; 23298f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } else { 23302fc2651226baac27029e38c9d6ef883fa32084dbSteve Block ruleLogicalLeft -= (inlineDirectionSize + colGap / 2); 23312fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalLeftOffset -= (inlineDirectionSize + colGap); 23328f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 23338f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 23348f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // Now paint the column rule. 23358f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (i < colCount - 1) { 23362bde8e466a4451c7319e3a072d118917957d6554Steve Block int ruleLeft = isHorizontalWritingMode() ? tx + ruleLogicalLeft - ruleWidth / 2 + ruleAdd : tx + borderBefore() + paddingBefore(); 23372bde8e466a4451c7319e3a072d118917957d6554Steve Block int ruleRight = isHorizontalWritingMode() ? ruleLeft + ruleWidth : ruleLeft + contentWidth(); 23382bde8e466a4451c7319e3a072d118917957d6554Steve Block int ruleTop = isHorizontalWritingMode() ? ty + borderTop() + paddingTop() : ty + ruleLogicalLeft - ruleWidth / 2 + ruleAdd; 23392bde8e466a4451c7319e3a072d118917957d6554Steve Block int ruleBottom = isHorizontalWritingMode() ? ruleTop + contentHeight() : ruleTop + ruleWidth; 23402fc2651226baac27029e38c9d6ef883fa32084dbSteve Block drawLineForBoxSide(paintInfo.context, ruleLeft, ruleTop, ruleRight, ruleBottom, 2341a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch style()->isLeftToRightDirection() ? BSLeft : BSRight, ruleColor, ruleStyle, 0, 0); 23428f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 23438f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 23442fc2651226baac27029e38c9d6ef883fa32084dbSteve Block ruleLogicalLeft = currLogicalLeftOffset; 23458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 23468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 23478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 23488f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::paintColumnContents(PaintInfo& paintInfo, int tx, int ty, bool paintingFloats) 23498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 23508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We need to do multiple passes, breaking up our child painting into strips. 23518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project GraphicsContext* context = paintInfo.context; 23525abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick ColumnInfo* colInfo = columnInfo(); 235368513a70bcd92384395513322f1b801e7bf9c729Steve Block unsigned colCount = columnCount(colInfo); 23546c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen if (!colCount) 23556c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen return; 23562fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int currLogicalTopOffset = 0; 23578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (unsigned i = 0; i < colCount; i++) { 23588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // For each rect, we clip to the rect, and then we adjust our coords. 235968513a70bcd92384395513322f1b801e7bf9c729Steve Block IntRect colRect = columnRectAt(colInfo, i); 23602fc2651226baac27029e38c9d6ef883fa32084dbSteve Block flipForWritingMode(colRect); 23612bde8e466a4451c7319e3a072d118917957d6554Steve Block int logicalLeftOffset = (isHorizontalWritingMode() ? colRect.x() : colRect.y()) - logicalLeftOffsetForContent(); 23622bde8e466a4451c7319e3a072d118917957d6554Steve Block IntSize offset = isHorizontalWritingMode() ? IntSize(logicalLeftOffset, currLogicalTopOffset) : IntSize(currLogicalTopOffset, logicalLeftOffset); 23638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project colRect.move(tx, ty); 23648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project PaintInfo info(paintInfo); 23658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project info.rect.intersect(colRect); 23668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2367e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (!info.rect.isEmpty()) { 2368e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block context->save(); 2369e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block 2370e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block // Each strip pushes a clip, since column boxes are specified as being 2371e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block // like overflow:hidden. 2372e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block context->clip(colRect); 23732fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 2374e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block // Adjust our x and y when painting. 23752fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int finalX = tx + offset.width(); 23762fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int finalY = ty + offset.height(); 2377e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (paintingFloats) 2378e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block paintFloats(info, finalX, finalY, paintInfo.phase == PaintPhaseSelection || paintInfo.phase == PaintPhaseTextClip); 2379e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block else 2380e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block paintContents(info, finalX, finalY); 23818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2382e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block context->restore(); 2383e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block } 23842fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 23852bde8e466a4451c7319e3a072d118917957d6554Steve Block int blockDelta = (isHorizontalWritingMode() ? colRect.height() : colRect.width()); 23862fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (style()->isFlippedBlocksWritingMode()) 23872fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalTopOffset += blockDelta; 23888f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian else 23892fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalTopOffset -= blockDelta; 23908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 23918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 23928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 23938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::paintContents(PaintInfo& paintInfo, int tx, int ty) 23948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 23958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Avoid painting descendants of the root element when stylesheets haven't loaded. This eliminates FOUC. 23968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // It's ok not to draw, because later on, when all the stylesheets do load, updateStyleSelector on the Document 23978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // will do a full repaint(). 23982daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch if (document()->didLayoutWithPendingStylesheets() && !isRenderView()) 23998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 24008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) 24028f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian m_lineBoxes.paint(this, paintInfo, tx, ty); 24038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 24048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project paintChildren(paintInfo, tx, ty); 24058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 24068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::paintChildren(PaintInfo& paintInfo, int tx, int ty) 24088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 24098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project PaintPhase newPhase = (paintInfo.phase == PaintPhaseChildOutlines) ? PaintPhaseOutline : paintInfo.phase; 24108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project newPhase = (newPhase == PaintPhaseChildBlockBackgrounds) ? PaintPhaseChildBlockBackground : newPhase; 24118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We don't paint our own background, but we do let the kids paint their backgrounds. 24138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project PaintInfo info(paintInfo); 24148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project info.phase = newPhase; 2415ca9cb53ed1119a3fd98fafa0972ffeb56dee1c24Steve Block info.updatePaintingRootForChildren(this); 24165ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen 241768513a70bcd92384395513322f1b801e7bf9c729Steve Block // FIXME: Paint-time pagination is obsolete and is now only used by embedded WebViews inside AppKit 241868513a70bcd92384395513322f1b801e7bf9c729Steve Block // NSViews. Do not add any more code for this. 24195ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen RenderView* renderView = view(); 242068513a70bcd92384395513322f1b801e7bf9c729Steve Block bool usePrintRect = !renderView->printRect().isEmpty(); 24215ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen 2422635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (RenderBox* child = firstChildBox(); child; child = child->nextSiblingBox()) { 24238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Check for page-break-before: always, and if it's set, break and bail. 242468513a70bcd92384395513322f1b801e7bf9c729Steve Block bool checkBeforeAlways = !childrenInline() && (usePrintRect && child->style()->pageBreakBefore() == PBALWAYS); 2425545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (checkBeforeAlways 2426dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block && (ty + child->y()) > paintInfo.rect.y() 24272fc2651226baac27029e38c9d6ef883fa32084dbSteve Block && (ty + child->y()) < paintInfo.rect.maxY()) { 2428635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project view()->setBestTruncatedAt(ty + child->y(), this, true); 24298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 24308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 24318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24325ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen if (!child->isFloating() && child->isReplaced() && usePrintRect && child->height() <= renderView->printRect().height()) { 24335ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen // Paginate block-level replaced elements. 24342fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (ty + child->y() + child->height() > renderView->printRect().maxY()) { 24355ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen if (ty + child->y() < renderView->truncatedAt()) 24365ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen renderView->setBestTruncatedAt(ty + child->y(), child); 24375ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen // If we were able to truncate, don't paint. 24385ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen if (ty + child->y() >= renderView->truncatedAt()) 24395ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen break; 24405ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen } 24415ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen } 24425ddde30071f639962dd557c453f2ad01f8f0fd00Kristian Monsen 244328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntPoint childPoint = flipForWritingMode(child, IntPoint(tx, ty), ParentToChildFlippingAdjustment); 24448f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!child->hasSelfPaintingLayer() && !child->isFloating()) 2445e14391e94c850b8bd03680c23b38978db68687a8John Reck child->paint(info, childPoint.x(), childPoint.y()); 24468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Check for page-break-after: always, and if it's set, break and bail. 244868513a70bcd92384395513322f1b801e7bf9c729Steve Block bool checkAfterAlways = !childrenInline() && (usePrintRect && child->style()->pageBreakAfter() == PBALWAYS); 2449545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (checkAfterAlways 2450dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block && (ty + child->y() + child->height()) > paintInfo.rect.y() 24512fc2651226baac27029e38c9d6ef883fa32084dbSteve Block && (ty + child->y() + child->height()) < paintInfo.rect.maxY()) { 2452bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen view()->setBestTruncatedAt(ty + child->y() + child->height() + max(0, child->collapsedMarginAfter()), this, true); 24538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 24548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 24558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 24568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 24578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2458635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid RenderBlock::paintCaret(PaintInfo& paintInfo, int tx, int ty, CaretType type) 24598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 246068513a70bcd92384395513322f1b801e7bf9c729Steve Block SelectionController* selection = type == CursorCaret ? frame()->selection() : frame()->page()->dragCaretController(); 2461635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 24625f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // Paint the caret if the SelectionController says so or if caret browsing is enabled 2463545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch bool caretBrowsing = frame()->settings() && frame()->settings()->caretBrowsingEnabled(); 2464635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderObject* caretPainter = selection->caretRenderer(); 24655f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (caretPainter == this && (selection->isContentEditable() || caretBrowsing)) { 2466635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // Convert the painting offset into the local coordinate system of this renderer, 2467635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // to match the localCaretRect computed by the SelectionController 2468635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project offsetForContents(tx, ty); 2469635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 24708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (type == CursorCaret) 2471545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch frame()->selection()->paintCaret(paintInfo.context, tx, ty, paintInfo.rect); 24728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 247368513a70bcd92384395513322f1b801e7bf9c729Steve Block frame()->selection()->paintDragCaret(paintInfo.context, tx, ty, paintInfo.rect); 24748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 24758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 24768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::paintObject(PaintInfo& paintInfo, int tx, int ty) 24788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 24798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project PaintPhase paintPhase = paintInfo.phase; 24808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 1. paint background, borders etc 24828f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if ((paintPhase == PaintPhaseBlockBackground || paintPhase == PaintPhaseChildBlockBackground) && style()->visibility() == VISIBLE) { 24838f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (hasBoxDecorations()) 24848f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian paintBoxDecorations(paintInfo, tx, ty); 24858f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (hasColumns()) 24868f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian paintColumnRules(paintInfo, tx, ty); 24878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 24888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (paintPhase == PaintPhaseMask && style()->visibility() == VISIBLE) { 24908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project paintMask(paintInfo, tx, ty); 24918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 24928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 24938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 24948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We're done. We don't bother painting any children. 24958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (paintPhase == PaintPhaseBlockBackground) 24968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 24978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2498dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block // Adjust our painting position if we're inside a scrolled layer (e.g., an overflow:auto div). 24998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int scrolledX = tx; 25008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int scrolledY = ty; 2501dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block if (hasOverflowClip()) { 2502dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block IntSize offset = layer()->scrolledContentOffset(); 2503dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block scrolledX -= offset.width(); 2504dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block scrolledY -= offset.height(); 2505dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block } 25068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 25078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 2. paint contents 25088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (paintPhase != PaintPhaseSelfOutline) { 25098f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (hasColumns()) 25108f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian paintColumnContents(paintInfo, scrolledX, scrolledY); 25118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 25128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project paintContents(paintInfo, scrolledX, scrolledY); 25138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 25148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 25158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 3. paint selection 25168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: Make this work with multi column layouts. For now don't fill gaps. 25178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool isPrinting = document()->printing(); 25188f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!isPrinting && !hasColumns()) 25198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project paintSelection(paintInfo, scrolledX, scrolledY); // Fill in gaps in selection on lines and between blocks. 25208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 25218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 4. paint floats. 2522635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (paintPhase == PaintPhaseFloat || paintPhase == PaintPhaseSelection || paintPhase == PaintPhaseTextClip) { 25238f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (hasColumns()) 25248f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian paintColumnContents(paintInfo, scrolledX, scrolledY, true); 25258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 25268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project paintFloats(paintInfo, scrolledX, scrolledY, paintPhase == PaintPhaseSelection || paintPhase == PaintPhaseTextClip); 25278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 25288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 25298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 5. paint outline. 2530635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if ((paintPhase == PaintPhaseOutline || paintPhase == PaintPhaseSelfOutline) && hasOutline() && style()->visibility() == VISIBLE) 2531dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block paintOutline(paintInfo.context, tx, ty, width(), height()); 25328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 25338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 6. paint continuation outlines. 2534635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if ((paintPhase == PaintPhaseOutline || paintPhase == PaintPhaseChildOutlines)) { 2535e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block RenderInline* inlineCont = inlineElementContinuation(); 2536e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (inlineCont && inlineCont->hasOutline() && inlineCont->style()->visibility() == VISIBLE) { 2537e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block RenderInline* inlineRenderer = toRenderInline(inlineCont->node()->renderer()); 2538e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke RenderBlock* cb = containingBlock(); 2539e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 2540e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke bool inlineEnclosedInSelfPaintingLayer = false; 2541e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke for (RenderBoxModelObject* box = inlineRenderer; box != cb; box = box->parent()->enclosingBoxModelObject()) { 2542e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke if (box->hasSelfPaintingLayer()) { 2543e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke inlineEnclosedInSelfPaintingLayer = true; 2544e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke break; 2545e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke } 2546e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke } 2547e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 2548e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke if (!inlineEnclosedInSelfPaintingLayer) 2549e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke cb->addContinuationWithOutline(inlineRenderer); 25508f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian else if (!inlineRenderer->firstLineBox()) 25518f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian inlineRenderer->paintOutline(paintInfo.context, tx - x() + inlineRenderer->containingBlock()->x(), 25528f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian ty - y() + inlineRenderer->containingBlock()->y()); 25538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 25548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project paintContinuationOutlines(paintInfo, tx, ty); 25558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 25568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 25578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 7. paint caret. 25588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the caret's node's render object's containing block is this block, and the paint action is PaintPhaseForeground, 25598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // then paint the caret. 2560635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (paintPhase == PaintPhaseForeground) { 2561635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project paintCaret(paintInfo, scrolledX, scrolledY, CursorCaret); 2562635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project paintCaret(paintInfo, scrolledX, scrolledY, DragCaret); 25638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 25648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 25658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 25662fc2651226baac27029e38c9d6ef883fa32084dbSteve BlockIntPoint RenderBlock::flipFloatForWritingMode(const FloatingObject* child, const IntPoint& point) const 25672fc2651226baac27029e38c9d6ef883fa32084dbSteve Block{ 25682fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (!style()->isFlippedBlocksWritingMode()) 25692fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return point; 25702fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 25712fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // This is similar to the ParentToChildFlippingAdjustment in RenderBox::flipForWritingMode. We have to subtract out our left/top offsets twice, since 25722fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // it's going to get added back in. We hide this complication here so that the calling code looks normal for the unflipped 25732fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // case. 25742bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 25752fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return IntPoint(point.x(), point.y() + height() - child->renderer()->height() - 2 * yPositionForFloatIncludingMargin(child)); 25762fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return IntPoint(point.x() + width() - child->width() - 2 * xPositionForFloatIncludingMargin(child), point.y()); 25772fc2651226baac27029e38c9d6ef883fa32084dbSteve Block} 25782fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 25798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::paintFloats(PaintInfo& paintInfo, int tx, int ty, bool preservePhase) 25808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 25818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!m_floatingObjects) 25828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 25838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 258481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 258581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator end = floatingObjectSet.end(); 258681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 258781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 25888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Only paint the object if our m_shouldPaint flag is set. 25898f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (r->m_shouldPaint && !r->m_renderer->hasSelfPaintingLayer()) { 25908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project PaintInfo currentPaintInfo(paintInfo); 25918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project currentPaintInfo.phase = preservePhase ? paintInfo.phase : PaintPhaseBlockBackground; 25922fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntPoint childPoint = flipFloatForWritingMode(r, IntPoint(tx + xPositionForFloatIncludingMargin(r) - r->m_renderer->x(), ty + yPositionForFloatIncludingMargin(r) - r->m_renderer->y())); 2593e14391e94c850b8bd03680c23b38978db68687a8John Reck r->m_renderer->paint(currentPaintInfo, childPoint.x(), childPoint.y()); 25948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!preservePhase) { 25958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project currentPaintInfo.phase = PaintPhaseChildBlockBackgrounds; 2596e14391e94c850b8bd03680c23b38978db68687a8John Reck r->m_renderer->paint(currentPaintInfo, childPoint.x(), childPoint.y()); 25978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project currentPaintInfo.phase = PaintPhaseFloat; 2598e14391e94c850b8bd03680c23b38978db68687a8John Reck r->m_renderer->paint(currentPaintInfo, childPoint.x(), childPoint.y()); 25998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project currentPaintInfo.phase = PaintPhaseForeground; 2600e14391e94c850b8bd03680c23b38978db68687a8John Reck r->m_renderer->paint(currentPaintInfo, childPoint.x(), childPoint.y()); 26018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project currentPaintInfo.phase = PaintPhaseOutline; 2602e14391e94c850b8bd03680c23b38978db68687a8John Reck r->m_renderer->paint(currentPaintInfo, childPoint.x(), childPoint.y()); 26038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 26048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 26058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 26068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 26078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 26088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::paintEllipsisBoxes(PaintInfo& paintInfo, int tx, int ty) 26098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2610ca9cb53ed1119a3fd98fafa0972ffeb56dee1c24Steve Block if (!paintInfo.shouldPaintWithinRoot(this) || !firstLineBox()) 26118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 26128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 26138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->visibility() == VISIBLE && paintInfo.phase == PaintPhaseForeground) { 26148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We can check the first box and last box and avoid painting if we don't 26158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // intersect. 26168f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int yPos = ty + firstLineBox()->y(); 2617bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int h = lastLineBox()->y() + lastLineBox()->logicalHeight() - firstLineBox()->y(); 26182fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (yPos >= paintInfo.rect.maxY() || yPos + h <= paintInfo.rect.y()) 26198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 26208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 26218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // See if our boxes intersect with the dirty rect. If so, then we paint 26228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // them. Note that boxes can easily overlap, so we can't make any assumptions 26238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // based off positions of our first line box or our last line box. 26248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RootInlineBox* curr = firstRootBox(); curr; curr = curr->nextRootBox()) { 26258f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian yPos = ty + curr->y(); 2626bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen h = curr->logicalHeight(); 26272fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (curr->ellipsisBox() && yPos < paintInfo.rect.maxY() && yPos + h > paintInfo.rect.y()) 26282daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch curr->paintEllipsisBox(paintInfo, tx, ty, curr->lineTop(), curr->lineBottom()); 26298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 26308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 26318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 26328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2633e78cbe89e6f337f2f1fe40315be88f742b547151Steve BlockRenderInline* RenderBlock::inlineElementContinuation() const 2634e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block{ 2635cad810f21b803229eb11403f9209855525a25d57Steve Block RenderBoxModelObject* continuation = this->continuation(); 2636cad810f21b803229eb11403f9209855525a25d57Steve Block return continuation && continuation->isInline() ? toRenderInline(continuation) : 0; 2637e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block} 2638e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block 2639e78cbe89e6f337f2f1fe40315be88f742b547151Steve BlockRenderBlock* RenderBlock::blockElementContinuation() const 2640e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block{ 2641cad810f21b803229eb11403f9209855525a25d57Steve Block RenderBoxModelObject* currentContinuation = continuation(); 2642cad810f21b803229eb11403f9209855525a25d57Steve Block if (!currentContinuation || currentContinuation->isInline()) 2643e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block return 0; 2644cad810f21b803229eb11403f9209855525a25d57Steve Block RenderBlock* nextContinuation = toRenderBlock(currentContinuation); 2645e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (nextContinuation->isAnonymousBlock()) 2646e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block return nextContinuation->blockElementContinuation(); 2647545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return nextContinuation; 2648e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block} 2649e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block 2650635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectstatic ContinuationOutlineTableMap* continuationOutlineTable() 26518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2652635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project DEFINE_STATIC_LOCAL(ContinuationOutlineTableMap, table, ()); 26538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return &table; 26548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 26558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 26568f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::addContinuationWithOutline(RenderInline* flow) 26578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 26588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We can't make this work if the inline is in a layer. We'll just rely on the broken 26598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // way of painting. 2660e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block ASSERT(!flow->layer() && !flow->isInlineElementContinuation()); 26618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2662635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project ContinuationOutlineTableMap* table = continuationOutlineTable(); 26638f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian ListHashSet<RenderInline*>* continuations = table->get(this); 26648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!continuations) { 26658f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian continuations = new ListHashSet<RenderInline*>; 26668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project table->set(this, continuations); 26678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 26688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 26698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continuations->add(flow); 26708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 26718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 267281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochbool RenderBlock::paintsContinuationOutline(RenderInline* flow) 267381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch{ 267481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch ContinuationOutlineTableMap* table = continuationOutlineTable(); 267581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (table->isEmpty()) 267681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch return false; 267781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 267881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch ListHashSet<RenderInline*>* continuations = table->get(this); 267981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (!continuations) 268081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch return false; 268181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 268281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch return continuations->contains(flow); 268381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch} 268481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 26858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::paintContinuationOutlines(PaintInfo& info, int tx, int ty) 26868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2687635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project ContinuationOutlineTableMap* table = continuationOutlineTable(); 26888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (table->isEmpty()) 26898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 26908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 26918f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian ListHashSet<RenderInline*>* continuations = table->get(this); 26928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!continuations) 26938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 26948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 26958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Paint each continuation outline. 26968f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian ListHashSet<RenderInline*>::iterator end = continuations->end(); 26978f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian for (ListHashSet<RenderInline*>::iterator it = continuations->begin(); it != end; ++it) { 26988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Need to add in the coordinates of the intervening blocks. 26998f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderInline* flow = *it; 27008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderBlock* block = flow->containingBlock(); 27018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for ( ; block && block != this; block = block->containingBlock()) { 2702635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project tx += block->x(); 2703635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project ty += block->y(); 27048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 27058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(block); 27068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project flow->paintOutline(info.context, tx, ty); 27078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 27088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Delete 27108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project delete continuations; 27118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project table->remove(this); 27128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 27138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::shouldPaintSelectionGaps() const 27158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 27168f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return selectionState() != SelectionNone && style()->visibility() == VISIBLE && isSelectionRoot(); 27178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 27188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::isSelectionRoot() const 27208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 27218f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!node()) 27228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 27238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: Eventually tables should have to learn how to fill gaps between cells, at least in simple non-spanning cases. 27258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isTable()) 27268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 27278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isBody() || isRoot() || hasOverflowClip() || isRelPositioned() || 27298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project isFloatingOrPositioned() || isTableCell() || isInlineBlockOrInlineTable() || hasTransform() || 273028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu hasReflection() || hasMask() || isWritingModeRoot()) 27318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 27328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (view() && view()->selectionStart()) { 27348f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian Node* startElement = view()->selectionStart()->node(); 27358f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (startElement && startElement->rootEditableElement() == node()) 27368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 27378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 27388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 27408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 27418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2742643ca7872b450ea4efacab6188849e5aac2ba161Steve BlockGapRects RenderBlock::selectionGapRectsForRepaint(RenderBoxModelObject* repaintContainer) 27438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 27448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(!needsLayout()); 27458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!shouldPaintSelectionGaps()) 27478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return GapRects(); 27488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2749643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // FIXME: this is broken with transforms 2750643ca7872b450ea4efacab6188849e5aac2ba161Steve Block TransformState transformState(TransformState::ApplyTransformDirection, FloatPoint()); 2751643ca7872b450ea4efacab6188849e5aac2ba161Steve Block mapLocalToContainer(repaintContainer, false, false, transformState); 2752dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block IntPoint offsetFromRepaintContainer = roundedIntPoint(transformState.mappedPoint()); 2753643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 27548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (hasOverflowClip()) 2755dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block offsetFromRepaintContainer -= layer()->scrolledContentOffset(); 27568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2757635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project int lastTop = 0; 275828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int lastLeft = logicalLeftSelectionOffset(this, lastTop); 275928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int lastRight = logicalRightSelectionOffset(this, lastTop); 27608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 276128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu return selectionGaps(this, offsetFromRepaintContainer, IntSize(), lastTop, lastLeft, lastRight); 27628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 27638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 27648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::paintSelection(PaintInfo& paintInfo, int tx, int ty) 27658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 27668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (shouldPaintSelectionGaps() && paintInfo.phase == PaintPhaseForeground) { 2767635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project int lastTop = 0; 276828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int lastLeft = logicalLeftSelectionOffset(this, lastTop); 276928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int lastRight = logicalRightSelectionOffset(this, lastTop); 27708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project paintInfo.context->save(); 277128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntRect gapRectsBounds = selectionGaps(this, IntPoint(tx, ty), IntSize(), lastTop, lastLeft, lastRight, &paintInfo); 2772643ca7872b450ea4efacab6188849e5aac2ba161Steve Block if (!gapRectsBounds.isEmpty()) { 2773643ca7872b450ea4efacab6188849e5aac2ba161Steve Block if (RenderLayer* layer = enclosingLayer()) { 2774d0825bca7fe65beaee391d30da42e937db621564Steve Block gapRectsBounds.move(IntSize(-tx, -ty)); 2775d0825bca7fe65beaee391d30da42e937db621564Steve Block if (!hasLayer()) { 27766b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner IntRect localBounds(gapRectsBounds); 27776b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner flipForWritingMode(localBounds); 27786b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner gapRectsBounds = localToContainerQuad(FloatRect(localBounds), layer->renderer()).enclosingBoundingBox(); 2779692e5dbf12901edacf14812a6fae25462920af42Steve Block gapRectsBounds.move(layer->scrolledContentOffset()); 2780d0825bca7fe65beaee391d30da42e937db621564Steve Block } 2781643ca7872b450ea4efacab6188849e5aac2ba161Steve Block layer->addBlockSelectionGapsBounds(gapRectsBounds); 2782643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 2783643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 27848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project paintInfo.context->restore(); 27858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 27868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 27878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 278828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhustatic void clipOutPositionedObjects(const PaintInfo* paintInfo, const IntPoint& offset, RenderBlock::PositionedObjectsListHashSet* positionedObjects) 27898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 27908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!positionedObjects) 27918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 27928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2793e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block RenderBlock::PositionedObjectsListHashSet::const_iterator end = positionedObjects->end(); 2794e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block for (RenderBlock::PositionedObjectsListHashSet::const_iterator it = positionedObjects->begin(); it != end; ++it) { 2795635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderBox* r = *it; 279628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu paintInfo->context->clipOut(IntRect(offset.x() + r->x(), offset.y() + r->y(), r->width(), r->height())); 27978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 27988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 27998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 280028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhustatic int blockDirectionOffset(RenderBlock* rootBlock, const IntSize& offsetFromRootBlock) 280128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu{ 28022bde8e466a4451c7319e3a072d118917957d6554Steve Block return rootBlock->isHorizontalWritingMode() ? offsetFromRootBlock.height() : offsetFromRootBlock.width(); 280328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu} 280428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu 280528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhustatic int inlineDirectionOffset(RenderBlock* rootBlock, const IntSize& offsetFromRootBlock) 280628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu{ 28072bde8e466a4451c7319e3a072d118917957d6554Steve Block return rootBlock->isHorizontalWritingMode() ? offsetFromRootBlock.width() : offsetFromRootBlock.height(); 280828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu} 280928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu 281028040489d744e0c5d475a88663056c9040ed5320Teng-Hui ZhuIntRect RenderBlock::logicalRectToPhysicalRect(const IntPoint& rootBlockPhysicalPosition, const IntRect& logicalRect) 281128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu{ 281228040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntRect result; 28132bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 281428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result = logicalRect; 281528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu else 281628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result = IntRect(logicalRect.y(), logicalRect.x(), logicalRect.height(), logicalRect.width()); 281728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu flipForWritingMode(result); 281828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result.move(rootBlockPhysicalPosition.x(), rootBlockPhysicalPosition.y()); 281928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu return result; 282028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu} 282128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu 282228040489d744e0c5d475a88663056c9040ed5320Teng-Hui ZhuGapRects RenderBlock::selectionGaps(RenderBlock* rootBlock, const IntPoint& rootBlockPhysicalPosition, const IntSize& offsetFromRootBlock, 282328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int& lastLogicalTop, int& lastLogicalLeft, int& lastLogicalRight, const PaintInfo* paintInfo) 28248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 28258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // IMPORTANT: Callers of this method that intend for painting to happen need to do a save/restore. 28268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Clip out floating and positioned objects when painting selection gaps. 28278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (paintInfo) { 28288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Note that we don't clip out overflow for positioned objects. We just stick to the border box. 282928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntRect flippedBlockRect = IntRect(offsetFromRootBlock.width(), offsetFromRootBlock.height(), width(), height()); 283028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu rootBlock->flipForWritingMode(flippedBlockRect); 283128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu flippedBlockRect.move(rootBlockPhysicalPosition.x(), rootBlockPhysicalPosition.y()); 283281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch clipOutPositionedObjects(paintInfo, flippedBlockRect.location(), m_positionedObjects.get()); 28338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isBody() || isRoot()) // The <body> must make sure to examine its containingBlock's positioned objects. 28348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderBlock* cb = containingBlock(); cb && !cb->isRenderView(); cb = cb->containingBlock()) 283581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch clipOutPositionedObjects(paintInfo, IntPoint(cb->x(), cb->y()), cb->m_positionedObjects.get()); // FIXME: Not right for flipped writing modes. 28368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_floatingObjects) { 283781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 283881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator end = floatingObjectSet.end(); 283981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 284081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 28412fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntRect floatBox = IntRect(offsetFromRootBlock.width() + xPositionForFloatIncludingMargin(r), 28422fc2651226baac27029e38c9d6ef883fa32084dbSteve Block offsetFromRootBlock.height() + yPositionForFloatIncludingMargin(r), 284328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu r->m_renderer->width(), r->m_renderer->height()); 284428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu rootBlock->flipForWritingMode(floatBox); 284528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu floatBox.move(rootBlockPhysicalPosition.x(), rootBlockPhysicalPosition.y()); 284628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu paintInfo->context->clipOut(floatBox); 28478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 28488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 28498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 28508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 28518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The 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 28528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // fixed). 28538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project GapRects result; 28548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!isBlockFlow()) // FIXME: Make multi-column selection gap filling work someday. 28558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 28568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 28575af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (hasColumns() || hasTransform() || style()->columnSpan()) { 28588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: We should learn how to gap fill multiple columns and transforms eventually. 285928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalTop = blockDirectionOffset(rootBlock, offsetFromRootBlock) + logicalHeight(); 286028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalLeft = logicalLeftSelectionOffset(rootBlock, logicalHeight()); 286128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalRight = logicalRightSelectionOffset(rootBlock, logicalHeight()); 28628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 28638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 28648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 28658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) 286628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result = inlineSelectionGaps(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, lastLogicalTop, lastLogicalLeft, lastLogicalRight, paintInfo); 28678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 286828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result = blockSelectionGaps(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, lastLogicalTop, lastLogicalLeft, lastLogicalRight, paintInfo); 28698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 28708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The 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. 28718f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (rootBlock == this && (selectionState() != SelectionBoth && selectionState() != SelectionEnd)) 287228040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result.uniteCenter(blockSelectionGap(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, lastLogicalTop, lastLogicalLeft, lastLogicalRight, 287328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu logicalHeight(), paintInfo)); 28748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 28758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 28768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 287728040489d744e0c5d475a88663056c9040ed5320Teng-Hui ZhuGapRects RenderBlock::inlineSelectionGaps(RenderBlock* rootBlock, const IntPoint& rootBlockPhysicalPosition, const IntSize& offsetFromRootBlock, 287828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int& lastLogicalTop, int& lastLogicalLeft, int& lastLogicalRight, const PaintInfo* paintInfo) 28798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 28808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project GapRects result; 28818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 28828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool containsStart = selectionState() == SelectionStart || selectionState() == SelectionBoth; 28838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 28848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!firstLineBox()) { 28858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (containsStart) { 288628040489d744e0c5d475a88663056c9040ed5320Teng-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 28878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // case. 288828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalTop = blockDirectionOffset(rootBlock, offsetFromRootBlock) + logicalHeight(); 288928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalLeft = logicalLeftSelectionOffset(rootBlock, logicalHeight()); 289028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalRight = logicalRightSelectionOffset(rootBlock, logicalHeight()); 28918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 28928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 28938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 28948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 28958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RootInlineBox* lastSelectedLine = 0; 28968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RootInlineBox* curr; 28978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (curr = firstRootBox(); curr && !curr->hasSelectedChildren(); curr = curr->nextRootBox()) { } 28988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 28998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Now paint the gaps for the lines. 29008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (; curr && curr->hasSelectedChildren(); curr = curr->nextRootBox()) { 29018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int selTop = curr->selectionTop(); 29028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int selHeight = curr->selectionHeight(); 29038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!containsStart && !lastSelectedLine && 29058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project selectionState() != SelectionStart && selectionState() != SelectionBoth) 290628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result.uniteCenter(blockSelectionGap(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, lastLogicalTop, lastLogicalLeft, lastLogicalRight, 290728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu selTop, paintInfo)); 290828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu 290928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntRect logicalRect(curr->logicalLeft(), selTop, curr->logicalWidth(), selTop + selHeight); 29102bde8e466a4451c7319e3a072d118917957d6554Steve Block logicalRect.move(isHorizontalWritingMode() ? offsetFromRootBlock : IntSize(offsetFromRootBlock.height(), offsetFromRootBlock.width())); 291128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntRect physicalRect = rootBlock->logicalRectToPhysicalRect(rootBlockPhysicalPosition, logicalRect); 29122bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!paintInfo || (isHorizontalWritingMode() && physicalRect.y() < paintInfo->rect.maxY() && physicalRect.maxY() > paintInfo->rect.y()) 29132bde8e466a4451c7319e3a072d118917957d6554Steve Block || (!isHorizontalWritingMode() && physicalRect.x() < paintInfo->rect.maxX() && physicalRect.maxX() > paintInfo->rect.x())) 291428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result.unite(curr->lineSelectionGap(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, selTop, selHeight, paintInfo)); 29158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project lastSelectedLine = curr; 29178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 29188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (containsStart && !lastSelectedLine) 29208f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // VisibleSelection must start just after our last line. 29218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project lastSelectedLine = lastRootBox(); 29228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (lastSelectedLine && selectionState() != SelectionEnd && selectionState() != SelectionBoth) { 29248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Go ahead and update our lastY to be the bottom of the last selected line. 292528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalTop = blockDirectionOffset(rootBlock, offsetFromRootBlock) + lastSelectedLine->selectionBottom(); 292628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalLeft = logicalLeftSelectionOffset(rootBlock, lastSelectedLine->selectionBottom()); 292728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalRight = logicalRightSelectionOffset(rootBlock, lastSelectedLine->selectionBottom()); 29288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 29298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 29308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 29318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 293228040489d744e0c5d475a88663056c9040ed5320Teng-Hui ZhuGapRects RenderBlock::blockSelectionGaps(RenderBlock* rootBlock, const IntPoint& rootBlockPhysicalPosition, const IntSize& offsetFromRootBlock, 293328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int& lastLogicalTop, int& lastLogicalLeft, int& lastLogicalRight, const PaintInfo* paintInfo) 29348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 29358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project GapRects result; 29368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Go ahead and jump right to the first block child that contains some selected objects. 2938635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderBox* curr; 2939635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (curr = firstChildBox(); curr && curr->selectionState() == SelectionNone; curr = curr->nextSiblingBox()) { } 29408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2941635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (bool sawSelectionEnd = false; curr && !sawSelectionEnd; curr = curr->nextSiblingBox()) { 29428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project SelectionState childState = curr->selectionState(); 29438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childState == SelectionBoth || childState == SelectionEnd) 29448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project sawSelectionEnd = true; 29458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (curr->isFloatingOrPositioned()) 29478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; // We must be a normal flow object in order to even be considered. 29488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (curr->isRelPositioned() && curr->hasLayer()) { 29508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the relposition offset is anything other than 0, then treat this just like an absolute positioned element. 29518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Just disregard it completely. 2952635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project IntSize relOffset = curr->layer()->relativePositionOffset(); 2953635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (relOffset.width() || relOffset.height()) 29548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 29558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 29568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool paintsOwnSelection = curr->shouldPaintSelectionGaps() || curr->isTable(); // FIXME: Eventually we won't special-case table like this. 29588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool fillBlockGaps = paintsOwnSelection || (curr->canBeSelectionLeaf() && childState != SelectionNone); 29598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (fillBlockGaps) { 29608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We need to fill the vertical gap above this object. 29618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childState == SelectionEnd || childState == SelectionInside) 29628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Fill the gap above the object. 296328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result.uniteCenter(blockSelectionGap(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, lastLogicalTop, lastLogicalLeft, lastLogicalRight, 296428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu curr->logicalTop(), paintInfo)); 29658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The 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* 29678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // our object. We know this if the selection did not end inside our object. 29688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (paintsOwnSelection && (childState == SelectionStart || sawSelectionEnd)) 29698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childState = SelectionNone; 29708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Fill side gaps on this object based off its state. 29728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool leftGap, rightGap; 297328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu getSelectionGapInfo(childState, leftGap, rightGap); 29748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (leftGap) 297628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result.uniteLeft(logicalLeftSelectionGap(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, this, curr->logicalLeft(), curr->logicalTop(), curr->logicalHeight(), paintInfo)); 29778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (rightGap) 297828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result.uniteRight(logicalRightSelectionGap(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, this, curr->logicalRight(), curr->logicalTop(), curr->logicalHeight(), paintInfo)); 29798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 298028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu // Update lastLogicalTop to be just underneath the object. lastLogicalLeft and lastLogicalRight extend as far as 29818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // they can without bumping into floating or positioned objects. Ideally they will go right up 29828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // to the border of the root selection block. 298328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalTop = blockDirectionOffset(rootBlock, offsetFromRootBlock) + curr->logicalBottom(); 298428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalLeft = logicalLeftSelectionOffset(rootBlock, curr->logicalBottom()); 298528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalRight = logicalRightSelectionOffset(rootBlock, curr->logicalBottom()); 29868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else if (childState != SelectionNone) 29878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We must be a block that has some selected object inside it. Go ahead and recur. 298828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu result.unite(toRenderBlock(curr)->selectionGaps(rootBlock, rootBlockPhysicalPosition, IntSize(offsetFromRootBlock.width() + curr->x(), offsetFromRootBlock.height() + curr->y()), 298928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu lastLogicalTop, lastLogicalLeft, lastLogicalRight, paintInfo)); 29908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 29918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 29928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 29938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 299428040489d744e0c5d475a88663056c9040ed5320Teng-Hui ZhuIntRect RenderBlock::blockSelectionGap(RenderBlock* rootBlock, const IntPoint& rootBlockPhysicalPosition, const IntSize& offsetFromRootBlock, 299528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int lastLogicalTop, int lastLogicalLeft, int lastLogicalRight, int logicalBottom, const PaintInfo* paintInfo) 29968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 299728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int logicalTop = lastLogicalTop; 299828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int logicalHeight = blockDirectionOffset(rootBlock, offsetFromRootBlock) + logicalBottom - logicalTop; 299928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (logicalHeight <= 0) 30008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return IntRect(); 30018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 30028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Get the selection offsets for the bottom of the gap 300328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int logicalLeft = max(lastLogicalLeft, logicalLeftSelectionOffset(rootBlock, logicalBottom)); 300428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int logicalRight = min(lastLogicalRight, logicalRightSelectionOffset(rootBlock, logicalBottom)); 300528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int logicalWidth = logicalRight - logicalLeft; 300628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (logicalWidth <= 0) 30078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return IntRect(); 30088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 300928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntRect gapRect = rootBlock->logicalRectToPhysicalRect(rootBlockPhysicalPosition, IntRect(logicalLeft, logicalTop, logicalWidth, logicalHeight)); 30108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (paintInfo) 3011643ca7872b450ea4efacab6188849e5aac2ba161Steve Block paintInfo->context->fillRect(gapRect, selectionBackgroundColor(), style()->colorSpace()); 30128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return gapRect; 30138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 30148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 301528040489d744e0c5d475a88663056c9040ed5320Teng-Hui ZhuIntRect RenderBlock::logicalLeftSelectionGap(RenderBlock* rootBlock, const IntPoint& rootBlockPhysicalPosition, const IntSize& offsetFromRootBlock, 301628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu RenderObject* selObj, int logicalLeft, int logicalTop, int logicalHeight, const PaintInfo* paintInfo) 30178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 301828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int rootBlockLogicalTop = blockDirectionOffset(rootBlock, offsetFromRootBlock) + logicalTop; 301928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int rootBlockLogicalLeft = max(logicalLeftSelectionOffset(rootBlock, logicalTop), logicalLeftSelectionOffset(rootBlock, logicalTop + logicalHeight)); 302028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int rootBlockLogicalRight = min(inlineDirectionOffset(rootBlock, offsetFromRootBlock) + logicalLeft, min(logicalRightSelectionOffset(rootBlock, logicalTop), logicalRightSelectionOffset(rootBlock, logicalTop + logicalHeight))); 302128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int rootBlockLogicalWidth = rootBlockLogicalRight - rootBlockLogicalLeft; 302228040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (rootBlockLogicalWidth <= 0) 30238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return IntRect(); 30248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 302528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntRect gapRect = rootBlock->logicalRectToPhysicalRect(rootBlockPhysicalPosition, IntRect(rootBlockLogicalLeft, rootBlockLogicalTop, rootBlockLogicalWidth, logicalHeight)); 30268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (paintInfo) 3027643ca7872b450ea4efacab6188849e5aac2ba161Steve Block paintInfo->context->fillRect(gapRect, selObj->selectionBackgroundColor(), selObj->style()->colorSpace()); 30288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return gapRect; 30298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 30308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 303128040489d744e0c5d475a88663056c9040ed5320Teng-Hui ZhuIntRect RenderBlock::logicalRightSelectionGap(RenderBlock* rootBlock, const IntPoint& rootBlockPhysicalPosition, const IntSize& offsetFromRootBlock, 303228040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu RenderObject* selObj, int logicalRight, int logicalTop, int logicalHeight, const PaintInfo* paintInfo) 30338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 303428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int rootBlockLogicalTop = blockDirectionOffset(rootBlock, offsetFromRootBlock) + logicalTop; 303528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int rootBlockLogicalLeft = max(inlineDirectionOffset(rootBlock, offsetFromRootBlock) + logicalRight, max(logicalLeftSelectionOffset(rootBlock, logicalTop), logicalLeftSelectionOffset(rootBlock, logicalTop + logicalHeight))); 303628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int rootBlockLogicalRight = min(logicalRightSelectionOffset(rootBlock, logicalTop), logicalRightSelectionOffset(rootBlock, logicalTop + logicalHeight)); 303728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int rootBlockLogicalWidth = rootBlockLogicalRight - rootBlockLogicalLeft; 303828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (rootBlockLogicalWidth <= 0) 30398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return IntRect(); 30408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 304128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntRect gapRect = rootBlock->logicalRectToPhysicalRect(rootBlockPhysicalPosition, IntRect(rootBlockLogicalLeft, rootBlockLogicalTop, rootBlockLogicalWidth, logicalHeight)); 30428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (paintInfo) 3043643ca7872b450ea4efacab6188849e5aac2ba161Steve Block paintInfo->context->fillRect(gapRect, selObj->selectionBackgroundColor(), selObj->style()->colorSpace()); 30448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return gapRect; 30458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 30468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 304728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhuvoid RenderBlock::getSelectionGapInfo(SelectionState state, bool& leftGap, bool& rightGap) 30488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 3049a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bool ltr = style()->isLeftToRightDirection(); 30508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project leftGap = (state == RenderObject::SelectionInside) || 30518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (state == RenderObject::SelectionEnd && ltr) || 30528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (state == RenderObject::SelectionStart && !ltr); 30538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project rightGap = (state == RenderObject::SelectionInside) || 30548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (state == RenderObject::SelectionStart && ltr) || 30558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (state == RenderObject::SelectionEnd && !ltr); 30568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 30578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 305828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhuint RenderBlock::logicalLeftSelectionOffset(RenderBlock* rootBlock, int position) 30598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 306028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int logicalLeft = logicalLeftOffsetForLine(position, false); 306128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (logicalLeft == logicalLeftOffsetForContent()) { 30628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (rootBlock != this) 30638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The border can potentially be further extended by our containingBlock(). 306428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu return containingBlock()->logicalLeftSelectionOffset(rootBlock, position + logicalTop()); 306528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu return logicalLeft; 306628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu } else { 30678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderBlock* cb = this; 30688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (cb != rootBlock) { 306928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu logicalLeft += cb->logicalLeft(); 30708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project cb = cb->containingBlock(); 30718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 30728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 307328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu return logicalLeft; 30748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 30758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 307628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhuint RenderBlock::logicalRightSelectionOffset(RenderBlock* rootBlock, int position) 30778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 307828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu int logicalRight = logicalRightOffsetForLine(position, false); 307928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (logicalRight == logicalRightOffsetForContent()) { 30808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (rootBlock != this) 30818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The border can potentially be further extended by our containingBlock(). 308228040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu return containingBlock()->logicalRightSelectionOffset(rootBlock, position + logicalTop()); 308328040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu return logicalRight; 308428040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu } else { 30858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderBlock* cb = this; 30868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (cb != rootBlock) { 308728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu logicalRight += cb->logicalLeft(); 30888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project cb = cb->containingBlock(); 30898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 30908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 309128040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu return logicalRight; 30928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 30938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3094635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid RenderBlock::insertPositionedObject(RenderBox* o) 30958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 30968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Create the list of special objects if we don't aleady have one 30978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!m_positionedObjects) 309881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_positionedObjects = adoptPtr(new PositionedObjectsListHashSet); 30998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_positionedObjects->add(o); 31018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 31028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3103635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid RenderBlock::removePositionedObject(RenderBox* o) 31048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 31058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_positionedObjects) 31068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_positionedObjects->remove(o); 31078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 31088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::removePositionedObjects(RenderBlock* o) 31108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 31118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!m_positionedObjects) 31128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 31138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3114635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderBox* r; 31158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Iterator end = m_positionedObjects->end(); 31178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3118635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project Vector<RenderBox*, 16> deadObjects; 31198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (Iterator it = m_positionedObjects->begin(); it != end; ++it) { 31218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project r = *it; 31228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!o || r->isDescendantOf(o)) { 31238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (o) 31248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project r->setChildNeedsLayout(true, false); 31258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // It is parent blocks job to add positioned child to positioned objects list of its containing block 31278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Parent layout needs to be invalidated to ensure this happens. 31288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* p = r->parent(); 31298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (p && !p->isRenderBlock()) 31308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project p = p->parent(); 31318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (p) 31328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project p->setChildNeedsLayout(true); 31338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project deadObjects.append(r); 31358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 31368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 31378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (unsigned i = 0; i < deadObjects.size(); i++) 31398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_positionedObjects->remove(deadObjects.at(i)); 31408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 31418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 314268513a70bcd92384395513322f1b801e7bf9c729Steve BlockRenderBlock::FloatingObject* RenderBlock::insertFloatingObject(RenderBox* o) 31438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 31448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(o->isFloating()); 31458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Create the list of special objects if we don't aleady have one 314781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (!m_floatingObjects) 314881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects = adoptPtr(new FloatingObjects); 314981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch else { 31508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Don't insert the object again if it's already in the list 315181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 315281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator it = floatingObjectSet.find<RenderBox*, FloatingObjectHashTranslator>(o); 315381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (it != floatingObjectSet.end()) 315481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch return *it; 31558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 31568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Create the special object entry & append it to the list 31588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 31598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project FloatingObject* newObj = new FloatingObject(o->style()->floating() == FLEFT ? FloatingObject::FloatLeft : FloatingObject::FloatRight); 316068513a70bcd92384395513322f1b801e7bf9c729Steve Block 316168513a70bcd92384395513322f1b801e7bf9c729Steve Block // Our location is irrelevant if we're unsplittable or no pagination is in effect. 316268513a70bcd92384395513322f1b801e7bf9c729Steve Block // Just go ahead and lay out the float. 3163a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bool isChildRenderBlock = o->isRenderBlock(); 3164f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (isChildRenderBlock && !o->needsLayout() && view()->layoutState()->pageLogicalHeightChanged()) 3165a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch o->setChildNeedsLayout(true, false); 3166a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 3167f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch bool affectedByPagination = isChildRenderBlock && view()->layoutState()->m_pageLogicalHeight; 3168a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!affectedByPagination || isWritingModeRoot()) // We are unsplittable if we're a block flow root. 316968513a70bcd92384395513322f1b801e7bf9c729Steve Block o->layoutIfNeeded(); 317068513a70bcd92384395513322f1b801e7bf9c729Steve Block else { 3171bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen o->computeLogicalWidth(); 3172bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen o->computeBlockDirectionMargins(this); 317368513a70bcd92384395513322f1b801e7bf9c729Steve Block } 3174a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalWidthForFloat(newObj, logicalWidthForChild(o) + marginStartForChild(o) + marginEndForChild(o)); 317568513a70bcd92384395513322f1b801e7bf9c729Steve Block 31768f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian newObj->m_shouldPaint = !o->hasSelfPaintingLayer(); // If a layer exists, the float will paint itself. Otherwise someone else will. 31778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project newObj->m_isDescendant = true; 31788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project newObj->m_renderer = o; 31798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 318081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->increaseObjectsCount(newObj->type()); 318181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->set().add(newObj); 318268513a70bcd92384395513322f1b801e7bf9c729Steve Block 318368513a70bcd92384395513322f1b801e7bf9c729Steve Block return newObj; 31848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 31858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3186635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid RenderBlock::removeFloatingObject(RenderBox* o) 31878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 31888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_floatingObjects) { 318981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 319081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet::iterator it = floatingObjectSet.find<RenderBox*, FloatingObjectHashTranslator>(o); 319181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (it != floatingObjectSet.end()) { 319281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 319381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (childrenInline()) { 319481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch int logicalTop = logicalTopForFloat(r); 319581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch int logicalBottom = logicalBottomForFloat(r); 319681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 319781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch // Fix for https://bugs.webkit.org/show_bug.cgi?id=54995. 319881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (logicalBottom < 0 || logicalBottom < logicalTop || logicalTop == numeric_limits<int>::max()) 319981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch logicalBottom = numeric_limits<int>::max(); 320081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch else { 3201dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block // Special-case zero- and less-than-zero-height floats: those don't touch 3202dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block // the line that they're on, but it still needs to be dirtied. This is 3203dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block // accomplished by pretending they have a height of 1. 320481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch logicalBottom = max(logicalBottom, logicalTop + 1); 3205dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block } 320654cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block if (r->m_originatingLine) { 320754cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block ASSERT(r->m_originatingLine->renderer() == this); 320854cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block r->m_originatingLine->markDirty(); 320954cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block#if !ASSERT_DISABLED 321054cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block r->m_originatingLine = 0; 321154cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block#endif 321254cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block } 321381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch markLinesDirtyInBlockRange(0, logicalBottom); 32148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 321581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->decreaseObjectsCount(r->type()); 321681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch floatingObjectSet.remove(it); 321754cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block ASSERT(!r->m_originatingLine); 321881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch delete r; 32198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 32208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 32218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 32228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 32232fc2651226baac27029e38c9d6ef883fa32084dbSteve Blockvoid RenderBlock::removeFloatingObjectsBelow(FloatingObject* lastFloat, int logicalOffset) 322468513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 322568513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!m_floatingObjects) 322668513a70bcd92384395513322f1b801e7bf9c729Steve Block return; 322768513a70bcd92384395513322f1b801e7bf9c729Steve Block 322881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 322981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* curr = floatingObjectSet.last(); 32302fc2651226baac27029e38c9d6ef883fa32084dbSteve Block while (curr != lastFloat && (!curr->isPlaced() || logicalTopForFloat(curr) >= logicalOffset)) { 323181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->decreaseObjectsCount(curr->type()); 323281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch floatingObjectSet.removeLast(); 323354cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block ASSERT(!curr->m_originatingLine); 323481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch delete curr; 323581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch curr = floatingObjectSet.last(); 323668513a70bcd92384395513322f1b801e7bf9c729Steve Block } 323768513a70bcd92384395513322f1b801e7bf9c729Steve Block} 323868513a70bcd92384395513322f1b801e7bf9c729Steve Block 32398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::positionNewFloats() 32408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 32418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!m_floatingObjects) 32428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 324381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 324481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 324581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (floatingObjectSet.isEmpty()) 324681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch return false; 32478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 32488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If all floats have already been positioned, then we have no work to do. 324981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (floatingObjectSet.last()->isPlaced()) 32508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 32518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 32528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Move backwards through our floating object list until we find a float that has 32538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // already been positioned. Then we'll be able to move forward, positioning all of 32548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the new floats that need it. 325581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator it = floatingObjectSet.end(); 325681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch --it; // Go to last item. 325781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator begin = floatingObjectSet.begin(); 325881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* lastPlacedFloatingObject = 0; 325981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch while (it != begin) { 326081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch --it; 326181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if ((*it)->isPlaced()) { 326281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch lastPlacedFloatingObject = *it; 326381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch ++it; 326481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch break; 326581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch } 32668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 32678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3268a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTop = logicalHeight(); 32698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3270a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The float cannot start above the top position of the last positioned float. 327181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (lastPlacedFloatingObject) 327281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch logicalTop = max(logicalTopForFloat(lastPlacedFloatingObject), logicalTop); 32738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 327481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator end = floatingObjectSet.end(); 32758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Now walk through the set of unpositioned floats and place them. 327681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (; it != end; ++it) { 327781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* floatingObject = *it; 32788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The containing block is responsible for positioning floats, so if we have floats in our 32798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // list that come from somewhere else, do not attempt to position them. 328081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (floatingObject->renderer()->containingBlock() != this) 32818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 32828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3283a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch RenderBox* childBox = floatingObject->renderer(); 3284a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int childLogicalLeftMargin = style()->isLeftToRightDirection() ? marginStartForChild(childBox) : marginEndForChild(childBox); 32858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3286a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int rightOffset = logicalRightOffsetForContent(); // Constant part of right offset. 3287a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int leftOffset = logicalLeftOffsetForContent(); // Constant part of left offset. 3288a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int floatLogicalWidth = logicalWidthForFloat(floatingObject); // The width we look for. 3289a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (rightOffset - leftOffset < floatLogicalWidth) 3290a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatLogicalWidth = rightOffset - leftOffset; // Never look for more than what will be available. 32918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3292a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch IntRect oldRect(childBox->x(), childBox->y() , childBox->width(), childBox->height()); 329368513a70bcd92384395513322f1b801e7bf9c729Steve Block 3294a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (childBox->style()->clear() & CLEFT) 3295a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTop = max(lowestFloatLogicalBottom(FloatingObject::FloatLeft), logicalTop); 3296a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (childBox->style()->clear() & CRIGHT) 3297a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTop = max(lowestFloatLogicalBottom(FloatingObject::FloatRight), logicalTop); 32988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3299a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int floatLogicalLeft; 3300a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (childBox->style()->floating() == FLEFT) { 33018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int heightRemainingLeft = 1; 33028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int heightRemainingRight = 1; 3303a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatLogicalLeft = logicalLeftOffsetForLine(logicalTop, leftOffset, false, &heightRemainingLeft); 3304a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch while (logicalRightOffsetForLine(logicalTop, rightOffset, false, &heightRemainingRight) - floatLogicalLeft < floatLogicalWidth) { 3305a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTop += min(heightRemainingLeft, heightRemainingRight); 3306a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatLogicalLeft = logicalLeftOffsetForLine(logicalTop, leftOffset, false, &heightRemainingLeft); 33078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3308a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatLogicalLeft = max(0, floatLogicalLeft); 33098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 33108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int heightRemainingLeft = 1; 33118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int heightRemainingRight = 1; 3312a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatLogicalLeft = logicalRightOffsetForLine(logicalTop, rightOffset, false, &heightRemainingRight); 3313a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch while (floatLogicalLeft - logicalLeftOffsetForLine(logicalTop, leftOffset, false, &heightRemainingLeft) < floatLogicalWidth) { 3314a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTop += min(heightRemainingLeft, heightRemainingRight); 3315a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatLogicalLeft = logicalRightOffsetForLine(logicalTop, rightOffset, false, &heightRemainingRight); 33168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3317a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatLogicalLeft -= logicalWidthForFloat(floatingObject); // Use the original width of the float here, since the local variable 3318a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // |floatLogicalWidth| was capped to the available line width. 3319a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // See fast/block/float/clamped-right-float.html. 33208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3321a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 3322a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalLeftForFloat(floatingObject, floatLogicalLeft); 3323a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalLeftForChild(childBox, floatLogicalLeft + childLogicalLeftMargin); 3324a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalTopForChild(childBox, logicalTop + marginBeforeForChild(childBox)); 33258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 332668513a70bcd92384395513322f1b801e7bf9c729Steve Block if (view()->layoutState()->isPaginated()) { 3327a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch RenderBlock* childBlock = childBox->isRenderBlock() ? toRenderBlock(childBox) : 0; 33288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3329a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!childBox->needsLayout()) 3330a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBox->markForPaginationRelayoutIfNeeded();; 3331a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBox->layoutIfNeeded(); 333268513a70bcd92384395513322f1b801e7bf9c729Steve Block 333368513a70bcd92384395513322f1b801e7bf9c729Steve Block // If we are unsplittable and don't fit, then we need to move down. 333468513a70bcd92384395513322f1b801e7bf9c729Steve Block // We include our margins as part of the unsplittable area. 3335a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int newLogicalTop = adjustForUnsplittableChild(childBox, logicalTop, true); 333668513a70bcd92384395513322f1b801e7bf9c729Steve Block 333768513a70bcd92384395513322f1b801e7bf9c729Steve Block // See if we have a pagination strut that is making us move down further. 333868513a70bcd92384395513322f1b801e7bf9c729Steve Block // Note that an unsplittable child can't also have a pagination strut, so this is 333968513a70bcd92384395513322f1b801e7bf9c729Steve Block // exclusive with the case above. 334068513a70bcd92384395513322f1b801e7bf9c729Steve Block if (childBlock && childBlock->paginationStrut()) { 3341a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch newLogicalTop += childBlock->paginationStrut(); 334268513a70bcd92384395513322f1b801e7bf9c729Steve Block childBlock->setPaginationStrut(0); 334368513a70bcd92384395513322f1b801e7bf9c729Steve Block } 334468513a70bcd92384395513322f1b801e7bf9c729Steve Block 3345a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (newLogicalTop != logicalTop) { 3346a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatingObject->m_paginationStrut = newLogicalTop - logicalTop; 3347a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTop = newLogicalTop; 3348a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalTopForChild(childBox, logicalTop + marginBeforeForChild(childBox)); 334968513a70bcd92384395513322f1b801e7bf9c729Steve Block if (childBlock) 335068513a70bcd92384395513322f1b801e7bf9c729Steve Block childBlock->setChildNeedsLayout(true, false); 3351a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBox->layoutIfNeeded(); 335268513a70bcd92384395513322f1b801e7bf9c729Steve Block } 335368513a70bcd92384395513322f1b801e7bf9c729Steve Block } 335468513a70bcd92384395513322f1b801e7bf9c729Steve Block 3355a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalTopForFloat(floatingObject, logicalTop); 3356a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch setLogicalHeightForFloat(floatingObject, logicalHeightForChild(childBox) + marginBeforeForChild(childBox) + marginAfterForChild(childBox)); 3357a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 3358a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch floatingObject->setIsPlaced(); 3359a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 33608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the child moved, we have to repaint it. 3361a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (childBox->checkForRepaintDuringLayout()) 3362a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBox->repaintDuringLayoutIfMoved(oldRect); 33638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 33648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 33658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 33668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 33678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::newLine(EClear clear) 33688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 33698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project positionNewFloats(); 33708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // set y position 33718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int newY = 0; 33720bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch switch (clear) 33738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 33748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project case CLEFT: 3375a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch newY = lowestFloatLogicalBottom(FloatingObject::FloatLeft); 33768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 33778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project case CRIGHT: 3378a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch newY = lowestFloatLogicalBottom(FloatingObject::FloatRight); 33798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 33808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project case CBOTH: 3381a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch newY = lowestFloatLogicalBottom(); 33828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project default: 33838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 33848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3385635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (height() < newY) 3386bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setLogicalHeight(newY); 33878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 33888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 33898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::addPercentHeightDescendant(RenderBox* descendant) 33908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 33918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!gPercentHeightDescendantsMap) { 33928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project gPercentHeightDescendantsMap = new PercentHeightDescendantsMap; 33938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project gPercentHeightContainerMap = new PercentHeightContainerMap; 33948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 33958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 33968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HashSet<RenderBox*>* descendantSet = gPercentHeightDescendantsMap->get(this); 33978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!descendantSet) { 33988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project descendantSet = new HashSet<RenderBox*>; 33998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project gPercentHeightDescendantsMap->set(this, descendantSet); 34008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool added = descendantSet->add(descendant).second; 34028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!added) { 34038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(gPercentHeightContainerMap->get(descendant)); 34048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(gPercentHeightContainerMap->get(descendant)->contains(this)); 34058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 34068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HashSet<RenderBlock*>* containerSet = gPercentHeightContainerMap->get(descendant); 34098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!containerSet) { 34108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project containerSet = new HashSet<RenderBlock*>; 34118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project gPercentHeightContainerMap->set(descendant, containerSet); 34128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(!containerSet->contains(this)); 34148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project containerSet->add(this); 34158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 34168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::removePercentHeightDescendant(RenderBox* descendant) 34188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 34198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!gPercentHeightContainerMap) 34208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 34218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HashSet<RenderBlock*>* containerSet = gPercentHeightContainerMap->take(descendant); 34238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!containerSet) 34248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 34258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HashSet<RenderBlock*>::iterator end = containerSet->end(); 34278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (HashSet<RenderBlock*>::iterator it = containerSet->begin(); it != end; ++it) { 34288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderBlock* container = *it; 34298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HashSet<RenderBox*>* descendantSet = gPercentHeightDescendantsMap->get(container); 34308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(descendantSet); 34318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!descendantSet) 34328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 34338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(descendantSet->contains(descendant)); 34348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project descendantSet->remove(descendant); 34358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (descendantSet->isEmpty()) { 34368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project gPercentHeightDescendantsMap->remove(container); 34378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project delete descendantSet; 34388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project delete containerSet; 34428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 34438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34448f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianHashSet<RenderBox*>* RenderBlock::percentHeightDescendants() const 34458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 34468f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return gPercentHeightDescendantsMap ? gPercentHeightDescendantsMap->get(this) : 0; 34478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 34488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34492bde8e466a4451c7319e3a072d118917957d6554Steve Block// FIXME: The logicalLeftOffsetForLine/logicalRightOffsetForLine functions are very slow if there are many floats 34502bde8e466a4451c7319e3a072d118917957d6554Steve Block// present. We need to add a structure to floating objects to represent "lines" of floats. Then instead of checking 34512bde8e466a4451c7319e3a072d118917957d6554Steve Block// each float individually, we'd just walk backwards through the "lines" and stop when we hit a line that is fully above 34522bde8e466a4451c7319e3a072d118917957d6554Steve Block// the vertical offset that we'd like to check. Computing the "lines" would be rather complicated, but could replace the left 34532bde8e466a4451c7319e3a072d118917957d6554Steve Block// objects and right objects count hack that is currently used here. 3454a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::logicalLeftOffsetForLine(int logicalTop, int fixedOffset, bool applyTextIndent, int* heightRemaining) const 34558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 34568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int left = fixedOffset; 345781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (m_floatingObjects && m_floatingObjects->hasLeftObjects()) { 3458a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (heightRemaining) 3459a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch *heightRemaining = 1; 346081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 34612bde8e466a4451c7319e3a072d118917957d6554Steve Block // We know the list is non-empty, since we have "left" objects to search for. 34622bde8e466a4451c7319e3a072d118917957d6554Steve Block // Therefore we can assume that begin != end, and that we can do at least one 34632bde8e466a4451c7319e3a072d118917957d6554Steve Block // decrement. 346481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 34652bde8e466a4451c7319e3a072d118917957d6554Steve Block FloatingObjectSetIterator begin = floatingObjectSet.begin(); 34662bde8e466a4451c7319e3a072d118917957d6554Steve Block FloatingObjectSetIterator it = floatingObjectSet.end(); 34672bde8e466a4451c7319e3a072d118917957d6554Steve Block do { 34682bde8e466a4451c7319e3a072d118917957d6554Steve Block --it; 346981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 3470a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (r->isPlaced() && logicalTopForFloat(r) <= logicalTop && logicalBottomForFloat(r) > logicalTop 3471a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch && r->type() == FloatingObject::FloatLeft 3472a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch && logicalRightForFloat(r) > left) { 34732bde8e466a4451c7319e3a072d118917957d6554Steve Block left = max(left, logicalRightForFloat(r)); 3474a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (heightRemaining) 3475a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch *heightRemaining = logicalBottomForFloat(r) - logicalTop; 34768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34772bde8e466a4451c7319e3a072d118917957d6554Steve Block } while (it != begin); 34788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3480a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (applyTextIndent && style()->isLeftToRightDirection()) { 3481635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project int cw = 0; 34828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->textIndent().isPercent()) 3483bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen cw = containingBlock()->availableLogicalWidth(); 34848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project left += style()->textIndent().calcMinValue(cw); 34858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 34868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 34878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return left; 34888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 34898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3490a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::logicalRightOffsetForLine(int logicalTop, int fixedOffset, bool applyTextIndent, int* heightRemaining) const 34918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 34928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int right = fixedOffset; 34938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 349481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (m_floatingObjects && m_floatingObjects->hasRightObjects()) { 3495a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (heightRemaining) 3496a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch *heightRemaining = 1; 34972bde8e466a4451c7319e3a072d118917957d6554Steve Block 34982bde8e466a4451c7319e3a072d118917957d6554Steve Block // We know the list is non-empty, since we have "right" objects to search for. 34992bde8e466a4451c7319e3a072d118917957d6554Steve Block // Therefore we can assume that begin != end, and that we can do at least one 35002bde8e466a4451c7319e3a072d118917957d6554Steve Block // decrement. 350181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 35022bde8e466a4451c7319e3a072d118917957d6554Steve Block FloatingObjectSetIterator begin = floatingObjectSet.begin(); 35032bde8e466a4451c7319e3a072d118917957d6554Steve Block FloatingObjectSetIterator it = floatingObjectSet.end(); 35042bde8e466a4451c7319e3a072d118917957d6554Steve Block do { 35052bde8e466a4451c7319e3a072d118917957d6554Steve Block --it; 350681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 3507a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (r->isPlaced() && logicalTopForFloat(r) <= logicalTop && logicalBottomForFloat(r) > logicalTop 3508a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch && r->type() == FloatingObject::FloatRight 3509a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch && logicalLeftForFloat(r) < right) { 35102bde8e466a4451c7319e3a072d118917957d6554Steve Block right = min(right, logicalLeftForFloat(r)); 3511a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (heightRemaining) 3512a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch *heightRemaining = logicalBottomForFloat(r) - logicalTop; 35138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 35142bde8e466a4451c7319e3a072d118917957d6554Steve Block } while (it != begin); 35158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 35168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3517a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (applyTextIndent && !style()->isLeftToRightDirection()) { 3518635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project int cw = 0; 35198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->textIndent().isPercent()) 3520bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen cw = containingBlock()->availableLogicalWidth(); 35218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project right -= style()->textIndent().calcMinValue(cw); 35228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 35238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 35248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return right; 35258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 35268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 352781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochint RenderBlock::availableLogicalWidthForLine(int position, bool firstLine) const 35288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 3529bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int result = logicalRightOffsetForLine(position, firstLine) - logicalLeftOffsetForLine(position, firstLine); 35308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return (result < 0) ? 0 : result; 35318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 35328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3533a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::nextFloatLogicalBottomBelow(int logicalHeight) const 35348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 35358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!m_floatingObjects) 35368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 35378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 35388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int bottom = INT_MAX; 353981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 354081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator end = floatingObjectSet.end(); 354181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 354281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 3543a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int floatBottom = logicalBottomForFloat(r); 3544a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (floatBottom > logicalHeight) 3545a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bottom = min(floatBottom, bottom); 35468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 35478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 35488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return bottom == INT_MAX ? 0 : bottom; 35498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 35508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3551a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::lowestFloatLogicalBottom(FloatingObject::Type floatType) const 35528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 3553a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!m_floatingObjects) 3554a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return 0; 3555a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int lowestFloatBottom = 0; 355681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 355781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator end = floatingObjectSet.end(); 355881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 355981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 3560a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (r->isPlaced() && r->type() & floatType) 3561a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch lowestFloatBottom = max(lowestFloatBottom, logicalBottomForFloat(r)); 3562a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 3563a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return lowestFloatBottom; 35648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 35658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3566a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::markLinesDirtyInBlockRange(int logicalTop, int logicalBottom, RootInlineBox* highest) 35678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 3568a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (logicalTop >= logicalBottom) 35698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 35708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 35718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RootInlineBox* lowestDirtyLine = lastRootBox(); 35728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RootInlineBox* afterLowest = lowestDirtyLine; 35732fc2651226baac27029e38c9d6ef883fa32084dbSteve Block while (lowestDirtyLine && lowestDirtyLine->blockLogicalHeight() >= logicalBottom && logicalBottom < numeric_limits<int>::max()) { 35748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project afterLowest = lowestDirtyLine; 35758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project lowestDirtyLine = lowestDirtyLine->prevRootBox(); 35768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 35778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 357881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch while (afterLowest && afterLowest != highest && (afterLowest->blockLogicalHeight() >= logicalTop || afterLowest->blockLogicalHeight() < 0)) { 35798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project afterLowest->markDirty(); 35808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project afterLowest = afterLowest->prevRootBox(); 35818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 35828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 35838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 35848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::clearFloats() 35858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 35868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Inline blocks are covered by the isReplaced() check in the avoidFloats method. 35878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (avoidsFloats() || isRoot() || isRenderView() || isFloatingOrPositioned() || isTableCell()) { 358881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (m_floatingObjects) { 358981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch deleteAllValues(m_floatingObjects->set()); 35908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_floatingObjects->clear(); 359181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch } 35928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 35938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 35948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 35958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project typedef HashMap<RenderObject*, FloatingObject*> RendererToFloatInfoMap; 35968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RendererToFloatInfoMap floatMap; 35978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 35988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_floatingObjects) { 359981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 36008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) { 360181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet::iterator end = floatingObjectSet.end(); 360281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSet::iterator it = floatingObjectSet.begin(); it != end; ++it) { 360381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* f = *it; 36048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatMap.add(f->m_renderer, f); 360581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch } 36068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else 360781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch deleteAllValues(floatingObjectSet); 360881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->clear(); 36098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3611545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // We should not process floats if the parent node is not a RenderBlock. Otherwise, we will add 3612545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // floats in an invalid context. This will cause a crash arising from a bad cast on the parent. 3613545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch // See <rdar://problem/8049753>, where float property is applied on a text node in a SVG. 3614545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (!parent() || !parent()->isRenderBlock()) 3615545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch return; 3616545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch 36178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Attempt to locate a previous sibling with overhanging floats. We skip any elements that are 36188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // out of flow (like floating/positioned elements), and we also skip over any objects that may have shifted 36198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // to avoid floats. 36208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool parentHasFloats = false; 3621a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch RenderBlock* parentBlock = toRenderBlock(parent()); 3622635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderObject* prev = previousSibling(); 36238f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian while (prev && (prev->isFloatingOrPositioned() || !prev->isBox() || !prev->isRenderBlock() || toRenderBlock(prev)->avoidsFloats())) { 36248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (prev->isFloating()) 36258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project parentHasFloats = true; 36268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project prev = prev->previousSibling(); 36278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 36298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // First add in floats from the parent. 3630a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalTopOffset = logicalTop(); 3631a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (parentHasFloats) 3632a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch addIntrudingFloats(parentBlock, parentBlock->logicalLeftOffsetForContent(), logicalTopOffset); 3633635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 3634a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalLeftOffset = 0; 36358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (prev) 3636a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalTopOffset -= toRenderBox(prev)->logicalTop(); 3637a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch else { 3638a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch prev = parentBlock; 3639a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch logicalLeftOffset += parentBlock->logicalLeftOffsetForContent(); 36408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 36428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Add overhanging floats from the previous RenderBlock, but only if it has a float that intrudes into our space. 3643635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (!prev || !prev->isRenderBlock()) 3644635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return; 3645635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 36468f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBlock* block = toRenderBlock(prev); 3647a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (block->m_floatingObjects && block->lowestFloatLogicalBottom() > logicalTopOffset) 3648a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch addIntrudingFloats(block, logicalLeftOffset, logicalTopOffset); 36498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 36508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) { 3651a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int changeLogicalTop = numeric_limits<int>::max(); 3652a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int changeLogicalBottom = numeric_limits<int>::min(); 36538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_floatingObjects) { 365481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 365581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator end = floatingObjectSet.end(); 365681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 365781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* f = *it; 36588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project FloatingObject* oldFloatingObject = floatMap.get(f->m_renderer); 3659a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int logicalBottom = logicalBottomForFloat(f); 36608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (oldFloatingObject) { 3661a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int oldLogicalBottom = logicalBottomForFloat(oldFloatingObject); 3662a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (logicalWidthForFloat(f) != logicalWidthForFloat(oldFloatingObject) || logicalLeftForFloat(f) != logicalLeftForFloat(oldFloatingObject)) { 3663a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch changeLogicalTop = 0; 3664a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch changeLogicalBottom = max(changeLogicalBottom, max(logicalBottom, oldLogicalBottom)); 3665a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else if (logicalBottom != oldLogicalBottom) { 3666a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch changeLogicalTop = min(changeLogicalTop, min(logicalBottom, oldLogicalBottom)); 3667a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch changeLogicalBottom = max(changeLogicalBottom, max(logicalBottom, oldLogicalBottom)); 36688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 36708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatMap.remove(f->m_renderer); 367154cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block if (oldFloatingObject->m_originatingLine) { 367254cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block ASSERT(oldFloatingObject->m_originatingLine->renderer() == this); 367354cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block oldFloatingObject->m_originatingLine->markDirty(); 367454cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block } 36758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project delete oldFloatingObject; 36768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 3677a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch changeLogicalTop = 0; 3678a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch changeLogicalBottom = max(changeLogicalBottom, logicalBottom); 36798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 36838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RendererToFloatInfoMap::iterator end = floatMap.end(); 36848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RendererToFloatInfoMap::iterator it = floatMap.begin(); it != end; ++it) { 36858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project FloatingObject* floatingObject = (*it).second; 36868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!floatingObject->m_isDescendant) { 3687a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch changeLogicalTop = 0; 3688a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch changeLogicalBottom = max(changeLogicalBottom, logicalBottomForFloat(floatingObject)); 36898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project deleteAllValues(floatMap); 36928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3693a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch markLinesDirtyInBlockRange(changeLogicalTop, changeLogicalBottom); 36948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 36958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 36968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3697a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::addOverhangingFloats(RenderBlock* child, int logicalLeftOffset, int logicalTopOffset, bool makeChildPaintOtherFloats) 36988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 36998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Prevent floats from being added to the canvas by the root element, e.g., <html>. 3700a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (child->hasOverflowClip() || !child->containsFloats() || child->isRoot() || child->hasColumns() || child->isWritingModeRoot()) 37018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 37028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 37032daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch int childLogicalTop = child->logicalTop(); 3704a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int lowestFloatLogicalBottom = 0; 37058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3706231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // Floats that will remain the child's responsibility to paint should factor into its 3707231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // overflow. 370881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator childEnd = child->m_floatingObjects->set().end(); 370981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator childIt = child->m_floatingObjects->set().begin(); childIt != childEnd; ++childIt) { 371081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *childIt; 37112daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch int logicalBottomForFloat = min(this->logicalBottomForFloat(r), numeric_limits<int>::max() - childLogicalTop); 37122daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch int logicalBottom = childLogicalTop + logicalBottomForFloat; 3713a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch lowestFloatLogicalBottom = max(lowestFloatLogicalBottom, logicalBottom); 37148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3715a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (logicalBottom > logicalHeight()) { 37168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the object is not in the list, we add it now. 37178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!containsFloat(r->m_renderer)) { 37182bde8e466a4451c7319e3a072d118917957d6554Steve Block int leftOffset = isHorizontalWritingMode() ? logicalLeftOffset : logicalTopOffset; 37192bde8e466a4451c7319e3a072d118917957d6554Steve Block int topOffset = isHorizontalWritingMode() ? logicalTopOffset : logicalLeftOffset; 37202fc2651226baac27029e38c9d6ef883fa32084dbSteve Block FloatingObject* floatingObj = new FloatingObject(r->type(), IntRect(r->x() - leftOffset, r->y() - topOffset, r->width(), r->height())); 37218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatingObj->m_renderer = r->m_renderer; 37228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 37238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The nearest enclosing layer always paints the float (so that zindex and stacking 37248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // behaves properly). We always want to propagate the desire to paint the float as 37258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // far out as we can, to the outermost block that overlaps the float, stopping only 37268f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // if we hit a self-painting layer boundary. 3727f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (r->m_renderer->enclosingFloatPaintingLayer() == enclosingFloatPaintingLayer()) 37288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project r->m_shouldPaint = false; 37298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 37308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatingObj->m_shouldPaint = false; 37318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3732f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch floatingObj->m_isDescendant = true; 3733f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 37348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We create the floating object list lazily. 373581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (!m_floatingObjects) 373681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects = adoptPtr(new FloatingObjects); 373781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 373881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->increaseObjectsCount(floatingObj->type()); 373981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->set().add(floatingObj); 37408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3741f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } else { 3742f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (makeChildPaintOtherFloats && !r->m_shouldPaint && !r->m_renderer->hasSelfPaintingLayer() && 3743f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch r->m_renderer->isDescendantOf(child) && r->m_renderer->enclosingFloatPaintingLayer() == child->enclosingFloatPaintingLayer()) { 3744f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // The float is not overhanging from this block, so if it is a descendant of the child, the child should 3745f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // paint it (the other case is that it is intruding into the child), unless it has its own layer or enclosing 3746f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // layer. 3747f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // If makeChildPaintOtherFloats is false, it means that the child must already know about all the floats 3748f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // it should paint. 3749f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch r->m_shouldPaint = true; 3750f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 3751f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 3752f05b935882198ccf7d81675736e3aeb089c5113aBen 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 3753f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // child now. 3754f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (r->m_isDescendant) 37552fc2651226baac27029e38c9d6ef883fa32084dbSteve Block child->addOverflowFromChild(r->m_renderer, IntSize(xPositionForFloatIncludingMargin(r), yPositionForFloatIncludingMargin(r))); 3756f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 37578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3758a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return lowestFloatLogicalBottom; 37598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 37608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 37614fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Blockbool RenderBlock::hasOverhangingFloat(RenderBox* renderer) 37624fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block{ 37634fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block if (!m_floatingObjects || hasColumns() || !parent()) 37644fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block return false; 37654fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block 37664fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 37674fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block FloatingObjectSetIterator it = floatingObjectSet.find<RenderBox*, FloatingObjectHashTranslator>(renderer); 37684fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block if (it == floatingObjectSet.end()) 37694fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block return false; 37704fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block 37714fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block return logicalBottomForFloat(*it) > logicalHeight(); 37724fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block} 37734fb1f2dd7e874d968a0effac0dd1e0ea8e94f46dSteve Block 3774a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::addIntrudingFloats(RenderBlock* prev, int logicalLeftOffset, int logicalTopOffset) 37758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 37768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the parent or previous sibling doesn't have any floats to add, don't bother. 37778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!prev->m_floatingObjects) 37788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 37798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 37802bde8e466a4451c7319e3a072d118917957d6554Steve Block logicalLeftOffset += (isHorizontalWritingMode() ? marginLeft() : marginTop()); 378181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 378281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& prevSet = prev->m_floatingObjects->set(); 378381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator prevEnd = prevSet.end(); 378481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator prevIt = prevSet.begin(); prevIt != prevEnd; ++prevIt) { 378581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *prevIt; 3786a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (logicalBottomForFloat(r) > logicalTopOffset) { 378781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (!m_floatingObjects || !m_floatingObjects->set().contains(r)) { 37882bde8e466a4451c7319e3a072d118917957d6554Steve Block int leftOffset = isHorizontalWritingMode() ? logicalLeftOffset : logicalTopOffset; 37892bde8e466a4451c7319e3a072d118917957d6554Steve Block int topOffset = isHorizontalWritingMode() ? logicalTopOffset : logicalLeftOffset; 3790a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 37912fc2651226baac27029e38c9d6ef883fa32084dbSteve Block FloatingObject* floatingObj = new FloatingObject(r->type(), IntRect(r->x() - leftOffset, r->y() - topOffset, r->width(), r->height())); 3792a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 37938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Applying the child's margin makes no sense in the case where the child was passed in. 3794a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // since this margin was added already through the modification of the |logicalLeftOffset| variable 3795a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // above. |logicalLeftOffset| will equal the margin in this case, so it's already been taken 3796a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // into account. Only apply this code if prev is the parent, since otherwise the left margin 37978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // will get applied twice. 37986b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (prev != parent()) { 37992bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 38002fc2651226baac27029e38c9d6ef883fa32084dbSteve Block floatingObj->setX(floatingObj->x() + prev->marginLeft()); 38016b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner else 38022fc2651226baac27029e38c9d6ef883fa32084dbSteve Block floatingObj->setY(floatingObj->y() + prev->marginTop()); 38036b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner } 3804a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 38058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatingObj->m_shouldPaint = false; // We are not in the direct inheritance chain for this float. We will never paint it. 38068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatingObj->m_renderer = r->m_renderer; 38078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 38088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We create the floating object list lazily. 380981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (!m_floatingObjects) 381081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects = adoptPtr(new FloatingObjects); 381181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->increaseObjectsCount(floatingObj->type()); 381281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_floatingObjects->set().add(floatingObj); 38138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 38148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 38158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 38168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 38178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 38188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::avoidsFloats() const 38198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 38208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Floats can't intrude into our box if we have a non-auto column count or width. 38218f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return RenderBox::avoidsFloats() || !style()->hasAutoColumnCount() || !style()->hasAutoColumnWidth(); 38228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 38238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 382481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochbool RenderBlock::containsFloat(RenderBox* renderer) 38258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 382681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch return m_floatingObjects && m_floatingObjects->set().contains<RenderBox*, FloatingObjectHashTranslator>(renderer); 38278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 38288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3829635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid RenderBlock::markAllDescendantsWithFloatsForLayout(RenderBox* floatToRemove, bool inLayout) 38308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 383168513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!m_everHadLayout) 383268513a70bcd92384395513322f1b801e7bf9c729Steve Block return; 383368513a70bcd92384395513322f1b801e7bf9c729Steve Block 3834635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project setChildNeedsLayout(true, !inLayout); 38358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 38368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (floatToRemove) 38378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project removeFloatingObject(floatToRemove); 38388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 38398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Iterate over our children and mark them as needed. 38408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!childrenInline()) { 38418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderObject* child = firstChild(); child; child = child->nextSibling()) { 38428f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if ((!floatToRemove && child->isFloatingOrPositioned()) || !child->isRenderBlock()) 38438f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian continue; 38448f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBlock* childBlock = toRenderBlock(child); 38458f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if ((floatToRemove ? childBlock->containsFloat(floatToRemove) : childBlock->containsFloats()) || childBlock->shrinkToAvoidFloats()) 38468f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian childBlock->markAllDescendantsWithFloatsForLayout(floatToRemove, inLayout); 38478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 38488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 38498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 38508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 385154cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Blockvoid RenderBlock::markSiblingsWithFloatsForLayout() 385254cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block{ 385354cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 385454cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block FloatingObjectSetIterator end = floatingObjectSet.end(); 385554cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 385654cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block if (logicalBottomForFloat(*it) > logicalHeight()) { 385754cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block RenderBox* floatingBox = (*it)->renderer(); 385854cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block 385954cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block RenderObject* next = nextSibling(); 386054cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block while (next) { 386154cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block if (next->isRenderBlock() && !next->isFloatingOrPositioned() && !toRenderBlock(next)->avoidsFloats()) { 386254cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block RenderBlock* nextBlock = toRenderBlock(next); 386354cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block if (nextBlock->containsFloat(floatingBox)) 386454cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block nextBlock->markAllDescendantsWithFloatsForLayout(floatingBox); 386554cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block else 386654cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block break; 386754cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block } 386854cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block 386954cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block next = next->nextSibling(); 387054cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block } 387154cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block } 387254cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block } 387354cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block} 387454cdeeebc7adcbcd900e8b6a141a8cae27d9a631Steve Block 38758f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianint RenderBlock::getClearDelta(RenderBox* child, int yPos) 38768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 38778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // There is no need to compute clearance if we have no floats. 38788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!containsFloats()) 38798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 38808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 38818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // At least one float is present. We need to perform the clearance computation. 38828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool clearSet = child->style()->clear() != CNONE; 38838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int bottom = 0; 38848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project switch (child->style()->clear()) { 38858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project case CNONE: 38868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 38878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project case CLEFT: 3888a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bottom = lowestFloatLogicalBottom(FloatingObject::FloatLeft); 38898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 38908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project case CRIGHT: 3891a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bottom = lowestFloatLogicalBottom(FloatingObject::FloatRight); 38928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 38938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project case CBOTH: 3894a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bottom = lowestFloatLogicalBottom(); 38958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 38968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 38978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 38988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The 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). 38998f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int result = clearSet ? max(0, bottom - yPos) : 0; 3900231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (!result && child->avoidsFloats()) { 3901d0825bca7fe65beaee391d30da42e937db621564Steve Block int y = yPos; 3902d0825bca7fe65beaee391d30da42e937db621564Steve Block while (true) { 3903bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int widthAtY = availableLogicalWidthForLine(y, false); 3904e14391e94c850b8bd03680c23b38978db68687a8John Reck if (widthAtY == availableLogicalWidth()) 3905d0825bca7fe65beaee391d30da42e937db621564Steve Block return y - yPos; 3906d0825bca7fe65beaee391d30da42e937db621564Steve Block 3907d0825bca7fe65beaee391d30da42e937db621564Steve Block int oldChildY = child->y(); 3908d0825bca7fe65beaee391d30da42e937db621564Steve Block int oldChildWidth = child->width(); 3909d0825bca7fe65beaee391d30da42e937db621564Steve Block child->setY(y); 3910bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen child->computeLogicalWidth(); 3911d0825bca7fe65beaee391d30da42e937db621564Steve Block int childWidthAtY = child->width(); 3912d0825bca7fe65beaee391d30da42e937db621564Steve Block child->setY(oldChildY); 3913d0825bca7fe65beaee391d30da42e937db621564Steve Block child->setWidth(oldChildWidth); 3914d0825bca7fe65beaee391d30da42e937db621564Steve Block 3915d0825bca7fe65beaee391d30da42e937db621564Steve Block if (childWidthAtY <= widthAtY) 3916d0825bca7fe65beaee391d30da42e937db621564Steve Block return y - yPos; 3917d0825bca7fe65beaee391d30da42e937db621564Steve Block 3918a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch y = nextFloatLogicalBottomBelow(y); 3919d0825bca7fe65beaee391d30da42e937db621564Steve Block ASSERT(y >= yPos); 3920d0825bca7fe65beaee391d30da42e937db621564Steve Block if (y < yPos) 3921d0825bca7fe65beaee391d30da42e937db621564Steve Block break; 3922d0825bca7fe65beaee391d30da42e937db621564Steve Block } 3923d0825bca7fe65beaee391d30da42e937db621564Steve Block ASSERT_NOT_REACHED(); 3924231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 39258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 39268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 39278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 39280bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdochbool RenderBlock::isPointInOverflowControl(HitTestResult& result, int _x, int _y, int _tx, int _ty) 39298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 39308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!scrollsOverflow()) 39318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 39328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 39330bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch return layer()->hitTestOverflowControls(result, IntPoint(_x - _tx, _y - _ty)); 39348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 39358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 39368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, int _x, int _y, int _tx, int _ty, HitTestAction hitTestAction) 39378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 3938635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project int tx = _tx + x(); 3939635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project int ty = _ty + y(); 39408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3941635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (!isRenderView()) { 39428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Check if we need to do anything at all. 3943f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch IntRect overflowBox = visualOverflowRect(); 39448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project overflowBox.move(tx, ty); 3945a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!overflowBox.intersects(result.rectForPoint(_x, _y))) 39468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 39478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 39488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 39498f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if ((hitTestAction == HitTestBlockBackground || hitTestAction == HitTestChildBlockBackground) && isPointInOverflowControl(result, _x, _y, tx, ty)) { 39508f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian updateHitTestResult(result, IntPoint(_x - tx, _y - ty)); 3951ad3386af2204fbbc9033a6dcced2f9b0adcd6f10Steve Block // FIXME: isPointInOverflowControl() doesn't handle rect-based tests yet. 3952db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Block if (!result.addNodeToRectBasedTestResult(node(), _x, _y)) 3953db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Block return true; 39548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 39558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 39568f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // If we have clipping, then we can't have any spillout. 39578f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian bool useOverflowClip = hasOverflowClip() && !hasSelfPaintingLayer(); 39588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian bool useClip = (hasControlClip() || useOverflowClip); 3959a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch IntRect hitTestArea(result.rectForPoint(_x, _y)); 39602bde8e466a4451c7319e3a072d118917957d6554Steve Block bool checkChildren = !useClip || (hasControlClip() ? controlClipRect(tx, ty).intersects(hitTestArea) : overflowClipRect(tx, ty, IncludeOverlayScrollbarSize).intersects(hitTestArea)); 39618f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (checkChildren) { 39628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Hit test descendants first. 39638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int scrolledX = tx; 39648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int scrolledY = ty; 3965dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block if (hasOverflowClip()) { 3966dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block IntSize offset = layer()->scrolledContentOffset(); 3967dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block scrolledX -= offset.width(); 3968dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block scrolledY -= offset.height(); 3969dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block } 39708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 39718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Hit test contents if we don't have columns. 39725abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick if (!hasColumns()) { 39735abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick if (hitTestContents(request, result, _x, _y, scrolledX, scrolledY, hitTestAction)) { 39745abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick updateHitTestResult(result, IntPoint(_x - tx, _y - ty)); 39755abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return true; 39765abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick } 39775abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick if (hitTestAction == HitTestFloat && hitTestFloats(request, result, _x, _y, scrolledX, scrolledY)) 39785abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return true; 39795abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick } else if (hitTestColumns(request, result, _x, _y, scrolledX, scrolledY, hitTestAction)) { 39806c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen updateHitTestResult(result, IntPoint(_x - tx, _y - ty)); 39818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 39826c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen } 39838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 39848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3985635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // Now hit test our background 3986635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (hitTestAction == HitTestBlockBackground || hitTestAction == HitTestChildBlockBackground) { 3987635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project IntRect boundsRect(tx, ty, width(), height()); 3988a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (visibleToHitTesting() && boundsRect.intersects(result.rectForPoint(_x, _y))) { 39896b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner updateHitTestResult(result, flipForWritingMode(IntPoint(_x - tx, _y - ty))); 3990db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Block if (!result.addNodeToRectBasedTestResult(node(), _x, _y, boundsRect)) 3991db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Block return true; 39928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 39938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 39948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 39958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 39968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 39978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 39985abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrickbool RenderBlock::hitTestFloats(const HitTestRequest& request, HitTestResult& result, int x, int y, int tx, int ty) 39995abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick{ 40005abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick if (!m_floatingObjects) 40015abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return false; 40025abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick 40035abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick if (isRenderView()) { 40045abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick tx += toRenderView(this)->frameView()->scrollX(); 40055abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick ty += toRenderView(this)->frameView()->scrollY(); 40065abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick } 40075abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick 400881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 400981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator begin = floatingObjectSet.begin(); 401081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator it = floatingObjectSet.end(); it != begin;) { 401181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch --it; 401281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* floatingObject = *it; 40135abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick if (floatingObject->m_shouldPaint && !floatingObject->m_renderer->hasSelfPaintingLayer()) { 40142fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int xOffset = xPositionForFloatIncludingMargin(floatingObject) - floatingObject->m_renderer->x(); 40152fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int yOffset = yPositionForFloatIncludingMargin(floatingObject) - floatingObject->m_renderer->y(); 40162fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntPoint childPoint = flipFloatForWritingMode(floatingObject, IntPoint(tx + xOffset, ty + yOffset)); 401728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (floatingObject->m_renderer->hitTest(request, result, IntPoint(x, y), childPoint.x(), childPoint.y())) { 401828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu updateHitTestResult(result, IntPoint(x - childPoint.x(), y - childPoint.y())); 40195abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return true; 40205abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick } 40215abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick } 40225abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick } 40235abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick 40245abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return false; 40255abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick} 40265abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick 40278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::hitTestColumns(const HitTestRequest& request, HitTestResult& result, int x, int y, int tx, int ty, HitTestAction hitTestAction) 40288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 40298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We need to do multiple passes, breaking up our hit testing into strips. 40305abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick ColumnInfo* colInfo = columnInfo(); 403168513a70bcd92384395513322f1b801e7bf9c729Steve Block int colCount = columnCount(colInfo); 40326c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen if (!colCount) 40336c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen return false; 40342fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int logicalLeft = logicalLeftOffsetForContent(); 40352fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int currLogicalTopOffset = 0; 4036e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block int i; 40372bde8e466a4451c7319e3a072d118917957d6554Steve Block bool isHorizontal = isHorizontalWritingMode(); 40382fc2651226baac27029e38c9d6ef883fa32084dbSteve Block for (i = 0; i < colCount; i++) { 40392fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntRect colRect = columnRectAt(colInfo, i); 40402fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int blockDelta = (isHorizontal ? colRect.height() : colRect.width()); 40412fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (style()->isFlippedBlocksWritingMode()) 40422fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalTopOffset += blockDelta; 40432fc2651226baac27029e38c9d6ef883fa32084dbSteve Block else 40442fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalTopOffset -= blockDelta; 40452fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 4046e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block for (i = colCount - 1; i >= 0; i--) { 404768513a70bcd92384395513322f1b801e7bf9c729Steve Block IntRect colRect = columnRectAt(colInfo, i); 40482fc2651226baac27029e38c9d6ef883fa32084dbSteve Block flipForWritingMode(colRect); 40492fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int currLogicalLeftOffset = (isHorizontal ? colRect.x() : colRect.y()) - logicalLeft; 40502fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int blockDelta = (isHorizontal ? colRect.height() : colRect.width()); 40512fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (style()->isFlippedBlocksWritingMode()) 40522fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalTopOffset -= blockDelta; 40532fc2651226baac27029e38c9d6ef883fa32084dbSteve Block else 40542fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalTopOffset += blockDelta; 40558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project colRect.move(tx, ty); 40568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4057a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (colRect.intersects(result.rectForPoint(x, y))) { 40588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The point is inside this column. 40598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Adjust tx and ty to change where we hit test. 40608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 40612fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntSize offset = isHorizontal ? IntSize(currLogicalLeftOffset, currLogicalTopOffset) : IntSize(currLogicalTopOffset, currLogicalLeftOffset); 40622fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int finalX = tx + offset.width(); 40632fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int finalY = ty + offset.height(); 4064a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (result.isRectBasedTest() && !colRect.contains(result.rectForPoint(x, y))) 4065db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Block hitTestContents(request, result, x, y, finalX, finalY, hitTestAction); 4066db14019a23d96bc8a444b6576a5da8bd1cfbc8b0Steve Block else 40675abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return hitTestContents(request, result, x, y, finalX, finalY, hitTestAction) || (hitTestAction == HitTestFloat && hitTestFloats(request, result, x, y, finalX, finalY)); 40688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 40698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 40708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 40718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 40728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 40738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 40748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::hitTestContents(const HitTestRequest& request, HitTestResult& result, int x, int y, int tx, int ty, HitTestAction hitTestAction) 40758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 40768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline() && !isTable()) { 40778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We have to hit-test our line boxes. 40786c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen if (m_lineBoxes.hitTest(this, request, result, x, y, tx, ty, hitTestAction)) 40798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 40808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 40818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Hit test our children. 40828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project HitTestAction childHitTest = hitTestAction; 40838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (hitTestAction == HitTestChildBlockBackgrounds) 40848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childHitTest = HitTestChildBlockBackground; 40858f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian for (RenderBox* child = lastChildBox(); child; child = child->previousSiblingBox()) { 408628040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu IntPoint childPoint = flipForWritingMode(child, IntPoint(tx, ty), ParentToChildFlippingAdjustment); 408728040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (!child->hasSelfPaintingLayer() && !child->isFloating() && child->nodeAtPoint(request, result, x, y, childPoint.x(), childPoint.y(), childHitTest)) 40888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 40898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 40908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 40918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 40928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 40938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 40948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 40958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectPosition RenderBlock::positionForBox(InlineBox *box, bool start) const 40968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 40978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!box) 40988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return Position(); 40998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41008f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!box->renderer()->node()) 41018f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return Position(node(), start ? caretMinOffset() : caretMaxOffset()); 41028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!box->isInlineTextBox()) 41048f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return Position(box->renderer()->node(), start ? box->renderer()->caretMinOffset() : box->renderer()->caretMaxOffset()); 41058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project InlineTextBox *textBox = static_cast<InlineTextBox *>(box); 41078f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return Position(box->renderer()->node(), start ? textBox->start() : textBox->start() + textBox->len()); 41088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 41098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41108f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian// FIXME: This function should go on RenderObject as an instance method. Then 41115f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian// all cases in which positionForPoint recurs could call this instead to 41128f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian// prevent crossing editable boundaries. This would require many tests. 41136b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brennerstatic VisiblePosition positionForPointRespectingEditingBoundaries(RenderBlock* parent, RenderBox* child, const IntPoint& pointInParentCoordinates) 41148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 41156b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner // FIXME: This is wrong if the child's writing-mode is different from the parent's. 41165f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian IntPoint pointInChildCoordinates(pointInParentCoordinates - child->location()); 41178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41188f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // If this is an anonymous renderer, we just recur normally 41198f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian Node* childNode = child->node(); 41208f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!childNode) 41215f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return child->positionForPoint(pointInChildCoordinates); 41228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41238f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // Otherwise, first make sure that the editability of the parent and child agree. 41248f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // If they don't agree, then we return a visible position just before or after the child 41258f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderObject* ancestor = parent; 41268f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian while (ancestor && !ancestor->node()) 41278f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian ancestor = ancestor->parent(); 41288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41298f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // If we can't find an ancestor to check editability on, or editability is unchanged, we recur like normal 41302bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!ancestor || ancestor->node()->rendererIsEditable() == childNode->rendererIsEditable()) 41315f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return child->positionForPoint(pointInChildCoordinates); 41328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41336b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner // Otherwise return before or after the child, depending on if the click was to the logical left or logical right of the child 41346b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner int childMiddle = parent->logicalWidthForChild(child) / 2; 41352bde8e466a4451c7319e3a072d118917957d6554Steve Block int logicalLeft = parent->isHorizontalWritingMode() ? pointInChildCoordinates.x() : pointInChildCoordinates.y(); 41366b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (logicalLeft < childMiddle) 41378f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return ancestor->createVisiblePosition(childNode->nodeIndex(), DOWNSTREAM); 41388f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return ancestor->createVisiblePosition(childNode->nodeIndex() + 1, UPSTREAM); 41398f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 41408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41416b70adc33054f8aee8c54d0f460458a9df11b8a5Russell BrennerVisiblePosition RenderBlock::positionForPointWithInlineChildren(const IntPoint& pointInLogicalContents) 41428f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 41435f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian ASSERT(childrenInline()); 41448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41455f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (!firstRootBox()) 41465f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return createVisiblePosition(0, DOWNSTREAM); 41478f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 41488f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // look for the closest line box in the root box which is at the passed-in y coordinate 41495f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian InlineBox* closestBox = 0; 41505f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian RootInlineBox* firstRootBoxWithChildren = 0; 41515f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian RootInlineBox* lastRootBoxWithChildren = 0; 41525f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian for (RootInlineBox* root = firstRootBox(); root; root = root->nextRootBox()) { 4153643ca7872b450ea4efacab6188849e5aac2ba161Steve Block if (!root->firstLeafChild()) 41545f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian continue; 41555f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (!firstRootBoxWithChildren) 41565f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian firstRootBoxWithChildren = root; 41575f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian lastRootBoxWithChildren = root; 41585f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 41598f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // check if this root line box is located at this y coordinate 41606b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (pointInLogicalContents.y() < root->selectionBottom()) { 41616b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner closestBox = root->closestLeafChildForLogicalLeftPosition(pointInLogicalContents.x()); 41628f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (closestBox) 41638f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian break; 41648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 41658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 41668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4167545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch bool moveCaretToBoundary = document()->frame()->editor()->behavior().shouldMoveCaretToHorizontalBoundaryWhenPastTopOrBottom(); 41685f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 4169545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch if (!moveCaretToBoundary && !closestBox && lastRootBoxWithChildren) { 41705f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // y coordinate is below last root line box, pretend we hit it 41716b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner closestBox = lastRootBoxWithChildren->closestLeafChildForLogicalLeftPosition(pointInLogicalContents.x()); 41725f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 41738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 41748f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (closestBox) { 41756b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (moveCaretToBoundary && pointInLogicalContents.y() < firstRootBoxWithChildren->selectionTop()) { 41765f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // y coordinate is above first root line box, so return the start of the first 41775f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return VisiblePosition(positionForBox(firstRootBoxWithChildren->firstLeafChild(), true), DOWNSTREAM); 41785f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 41795f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 41806b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner // pass the box a top position that is inside it 41816b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner IntPoint point(pointInLogicalContents.x(), closestBox->logicalTop()); 41822bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!isHorizontalWritingMode()) 41836b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner point = point.transposedPoint(); 41846b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (closestBox->renderer()->isReplaced()) 41856b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner return positionForPointRespectingEditingBoundaries(this, toRenderBox(closestBox->renderer()), point); 41866b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner return closestBox->renderer()->positionForPoint(point); 41875f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 41885f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 41895f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (lastRootBoxWithChildren) { 41905f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // We hit this case for Mac behavior when the Y coordinate is below the last box. 4191545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch ASSERT(moveCaretToBoundary); 41922bde8e466a4451c7319e3a072d118917957d6554Steve Block InlineBox* logicallyLastBox; 41932bde8e466a4451c7319e3a072d118917957d6554Steve Block if (lastRootBoxWithChildren->getLogicalEndBoxWithNode(logicallyLastBox)) 41942bde8e466a4451c7319e3a072d118917957d6554Steve Block return VisiblePosition(positionForBox(logicallyLastBox, false), DOWNSTREAM); 41958f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 41968f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 41975f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // Can't reach this. We have a root line box, but it has no kids. 41988f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // FIXME: This should ASSERT_NOT_REACHED(), but clicking on placeholder text 41995f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // seems to hit this code path. 42005f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return createVisiblePosition(0, DOWNSTREAM); 42015f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian} 42025f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 42035f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianstatic inline bool isChildHitTestCandidate(RenderBox* box) 42045f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian{ 42055f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return box->height() && box->style()->visibility() == VISIBLE && !box->isFloatingOrPositioned(); 42068f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 42078f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 42088f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianVisiblePosition RenderBlock::positionForPoint(const IntPoint& point) 42098f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 42108f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (isTable()) 42118f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return RenderBox::positionForPoint(point); 42128f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 42138f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (isReplaced()) { 42146b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner // FIXME: This seems wrong when the object's writing-mode doesn't match the line's writing-mode. 42152bde8e466a4451c7319e3a072d118917957d6554Steve Block int pointLogicalLeft = isHorizontalWritingMode() ? point.x() : point.y(); 42162bde8e466a4451c7319e3a072d118917957d6554Steve Block int pointLogicalTop = isHorizontalWritingMode() ? point.y() : point.x(); 42176b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner 42186b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (pointLogicalTop < 0 || (pointLogicalTop < logicalHeight() && pointLogicalLeft < 0)) 42198f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return createVisiblePosition(caretMinOffset(), DOWNSTREAM); 42206b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (pointLogicalTop >= logicalHeight() || (pointLogicalTop >= 0 && pointLogicalLeft >= logicalWidth())) 42218f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return createVisiblePosition(caretMaxOffset(), DOWNSTREAM); 42228f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 42238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 42245f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian int contentsX = point.x(); 42255f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian int contentsY = point.y(); 42265f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian offsetForContents(contentsX, contentsY); 42275f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian IntPoint pointInContents(contentsX, contentsY); 42286b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner IntPoint pointInLogicalContents(pointInContents); 42292bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!isHorizontalWritingMode()) 42306b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner pointInLogicalContents = pointInLogicalContents.transposedPoint(); 42318f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 42325f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (childrenInline()) 42336b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner return positionForPointWithInlineChildren(pointInLogicalContents); 42348f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 42356b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (lastChildBox() && pointInContents.y() > lastChildBox()->logicalTop()) { 42365f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian for (RenderBox* childBox = lastChildBox(); childBox; childBox = childBox->previousSiblingBox()) { 42375f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (isChildHitTestCandidate(childBox)) 42385f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return positionForPointRespectingEditingBoundaries(this, childBox, pointInContents); 42395f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 42405f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } else { 42415f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian for (RenderBox* childBox = firstChildBox(); childBox; childBox = childBox->nextSiblingBox()) { 42425f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // We hit child if our click is above the bottom of its padding box (like IE6/7 and FF3). 42436b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (isChildHitTestCandidate(childBox) && pointInContents.y() < childBox->logicalBottom()) 42445f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return positionForPointRespectingEditingBoundaries(this, childBox, pointInContents); 42455f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 42468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 42478f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 42485f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // We only get here if there are no hit test candidate children below the click. 42498f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return RenderBox::positionForPoint(point); 42508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 42518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4252635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid RenderBlock::offsetForContents(int& tx, int& ty) const 4253635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project{ 4254dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block IntPoint contentsPoint(tx, ty); 4255dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block 4256635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (hasOverflowClip()) 4257dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block contentsPoint += layer()->scrolledContentOffset(); 4258635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 4259dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block if (hasColumns()) 4260635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project adjustPointToColumnContents(contentsPoint); 4261dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block 4262dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block tx = contentsPoint.x(); 4263dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block ty = contentsPoint.y(); 4264635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} 4265635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 426668513a70bcd92384395513322f1b801e7bf9c729Steve Blockint RenderBlock::availableLogicalWidth() const 426768513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 426868513a70bcd92384395513322f1b801e7bf9c729Steve Block // If we have multiple columns, then the available logical width is reduced to our column width. 426968513a70bcd92384395513322f1b801e7bf9c729Steve Block if (hasColumns()) 427068513a70bcd92384395513322f1b801e7bf9c729Steve Block return desiredColumnWidth(); 427168513a70bcd92384395513322f1b801e7bf9c729Steve Block return RenderBox::availableLogicalWidth(); 42728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 42738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 42748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectint RenderBlock::columnGap() const 42758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 42768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->hasNormalColumnGap()) 42778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return style()->fontDescription().computedPixelSize(); // "1em" is recommended as the normal gap setting. Matches <p> margins. 42788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return static_cast<int>(style()->columnGap()); 42798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 42808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 42818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::calcColumnWidth() 42828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 42838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Calculate our column width and column count. 42848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project unsigned desiredColumnCount = 1; 42852fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int desiredColumnWidth = contentLogicalWidth(); 42868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 42878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The 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. 4288f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick if (document()->paginated() || (style()->hasAutoColumnCount() && style()->hasAutoColumnWidth())) { 42898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project setDesiredColumnCountAndWidth(desiredColumnCount, desiredColumnWidth); 42908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 42918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 42928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 42938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int availWidth = desiredColumnWidth; 42948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int colGap = columnGap(); 42958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int colWidth = max(1, static_cast<int>(style()->columnWidth())); 42968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int colCount = max(1, static_cast<int>(style()->columnCount())); 42978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 42982daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch if (style()->hasAutoColumnWidth() && !style()->hasAutoColumnCount()) { 42992daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch desiredColumnCount = colCount; 43002daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch desiredColumnWidth = max<int>(0, (availWidth - ((desiredColumnCount - 1) * colGap)) / desiredColumnCount); 43012daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch } else if (!style()->hasAutoColumnWidth() && style()->hasAutoColumnCount()) { 43022daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch desiredColumnCount = max<int>(1, (float)(availWidth + colGap) / (colWidth + colGap)); 43032daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch desiredColumnWidth = ((availWidth + colGap) / desiredColumnCount) - colGap; 43048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 43052daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch desiredColumnCount = max(min<int>(colCount, (float)(availWidth + colGap) / (colWidth + colGap)), 1); 43062daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch desiredColumnWidth = ((availWidth + colGap) / desiredColumnCount) - colGap; 43078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 43088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project setDesiredColumnCountAndWidth(desiredColumnCount, desiredColumnWidth); 43098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 43108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 43118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::setDesiredColumnCountAndWidth(int count, int width) 43128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 43135af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke bool destroyColumns = !firstChild() 43145af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke || (count == 1 && style()->hasAutoColumnWidth()) 43155af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke || firstChild()->isAnonymousColumnsBlock() 431668513a70bcd92384395513322f1b801e7bf9c729Steve Block || firstChild()->isAnonymousColumnSpanBlock(); 43175af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (destroyColumns) { 43188f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (hasColumns()) { 43198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project delete gColumnInfoMap->take(this); 43208f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian setHasColumns(false); 43218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 43228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 43238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ColumnInfo* info; 43248f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (hasColumns()) 43258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project info = gColumnInfoMap->get(this); 43268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 43278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!gColumnInfoMap) 43288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project gColumnInfoMap = new ColumnInfoMap; 43298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project info = new ColumnInfo; 43308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project gColumnInfoMap->add(this, info); 43318f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian setHasColumns(true); 43328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 43335abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick info->setDesiredColumnCount(count); 43345abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick info->setDesiredColumnWidth(width); 43358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 43368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 43378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 43388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectint RenderBlock::desiredColumnWidth() const 43398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 43408f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!hasColumns()) 43412fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return contentLogicalWidth(); 43425abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return gColumnInfoMap->get(this)->desiredColumnWidth(); 43438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 43448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 43458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectunsigned RenderBlock::desiredColumnCount() const 43468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 43478f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!hasColumns()) 43488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 1; 43495abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return gColumnInfoMap->get(this)->desiredColumnCount(); 43508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 43518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 43525abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain MerrickColumnInfo* RenderBlock::columnInfo() const 43538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 43548f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!hasColumns()) 43558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 43565abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return gColumnInfoMap->get(this); 43578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 43588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 435968513a70bcd92384395513322f1b801e7bf9c729Steve Blockunsigned RenderBlock::columnCount(ColumnInfo* colInfo) const 43608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 436168513a70bcd92384395513322f1b801e7bf9c729Steve Block ASSERT(hasColumns() && gColumnInfoMap->get(this) == colInfo); 436268513a70bcd92384395513322f1b801e7bf9c729Steve Block return colInfo->columnCount(); 436368513a70bcd92384395513322f1b801e7bf9c729Steve Block} 43648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 436568513a70bcd92384395513322f1b801e7bf9c729Steve BlockIntRect RenderBlock::columnRectAt(ColumnInfo* colInfo, unsigned index) const 436668513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 436768513a70bcd92384395513322f1b801e7bf9c729Steve Block ASSERT(hasColumns() && gColumnInfoMap->get(this) == colInfo); 43688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 436968513a70bcd92384395513322f1b801e7bf9c729Steve Block // Compute the appropriate rect based off our information. 43702fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int colLogicalWidth = colInfo->desiredColumnWidth(); 43712fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int colLogicalHeight = colInfo->columnHeight(); 43722fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int colLogicalTop = borderBefore() + paddingBefore(); 43738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int colGap = columnGap(); 43742fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int colLogicalLeft = style()->isLeftToRightDirection() ? 43752fc2651226baac27029e38c9d6ef883fa32084dbSteve Block logicalLeftOffsetForContent() + (index * (colLogicalWidth + colGap)) 43762fc2651226baac27029e38c9d6ef883fa32084dbSteve Block : logicalLeftOffsetForContent() + contentLogicalWidth() - colLogicalWidth - (index * (colLogicalWidth + colGap)); 43772fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntRect rect(colLogicalLeft, colLogicalTop, colLogicalWidth, colLogicalHeight); 43782bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 43792fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return IntRect(colLogicalLeft, colLogicalTop, colLogicalWidth, colLogicalHeight); 43802fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return IntRect(colLogicalTop, colLogicalLeft, colLogicalHeight, colLogicalWidth); 438168513a70bcd92384395513322f1b801e7bf9c729Steve Block} 43828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4383f05b935882198ccf7d81675736e3aeb089c5113aBen Murdochbool RenderBlock::layoutColumns(bool hasSpecifiedPageLogicalHeight, int pageLogicalHeight, LayoutStateMaintainer& statePusher) 438468513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 4385f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!hasColumns()) 4386f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch return false; 4387f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 4388f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // FIXME: We don't balance properly at all in the presence of forced page breaks. We need to understand what 4389f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // the distance between forced page breaks is so that we can avoid making the minimum column height too tall. 4390f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch ColumnInfo* colInfo = columnInfo(); 4391f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int desiredColumnCount = colInfo->desiredColumnCount(); 4392f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!hasSpecifiedPageLogicalHeight) { 4393f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int columnHeight = pageLogicalHeight; 4394f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int minColumnCount = colInfo->forcedBreaks() + 1; 4395f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (minColumnCount >= desiredColumnCount) { 4396f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // The forced page breaks are in control of the balancing. Just set the column height to the 4397f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // maximum page break distance. 4398f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!pageLogicalHeight) { 4399f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int distanceBetweenBreaks = max(colInfo->maximumDistanceBetweenForcedBreaks(), 44002fc2651226baac27029e38c9d6ef883fa32084dbSteve Block view()->layoutState()->pageLogicalOffset(borderBefore() + paddingBefore() + contentLogicalHeight()) - colInfo->forcedBreakOffset()); 4401f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch columnHeight = max(colInfo->minimumColumnHeight(), distanceBetweenBreaks); 440268513a70bcd92384395513322f1b801e7bf9c729Steve Block } 44032fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } else if (contentLogicalHeight() > pageLogicalHeight * desiredColumnCount) { 4404f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch // Now that we know the intrinsic height of the columns, we have to rebalance them. 44052fc2651226baac27029e38c9d6ef883fa32084dbSteve Block columnHeight = max(colInfo->minimumColumnHeight(), (int)ceilf((float)contentLogicalHeight() / desiredColumnCount)); 4406f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 44078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4408f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (columnHeight && columnHeight != pageLogicalHeight) { 4409f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch statePusher.pop(); 4410f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch m_everHadLayout = true; 4411f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch layoutBlock(false, columnHeight); 4412f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch return true; 44138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 4414f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 4415f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 4416f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (pageLogicalHeight) 44172fc2651226baac27029e38c9d6ef883fa32084dbSteve Block colInfo->setColumnCountAndHeight(ceilf((float)contentLogicalHeight() / pageLogicalHeight), pageLogicalHeight); 4418f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 4419f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (columnCount(colInfo)) { 44202fc2651226baac27029e38c9d6ef883fa32084dbSteve Block setLogicalHeight(borderBefore() + paddingBefore() + colInfo->columnHeight() + borderAfter() + paddingAfter() + scrollbarLogicalHeight()); 4421f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch m_overflow.clear(); 4422643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 44238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 442468513a70bcd92384395513322f1b801e7bf9c729Steve Block return false; 44258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 44268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 44278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::adjustPointToColumnContents(IntPoint& point) const 44288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 44298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Just bail if we have no columns. 44308f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!hasColumns()) 44318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 44328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 44335abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick ColumnInfo* colInfo = columnInfo(); 443468513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!columnCount(colInfo)) 44355abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick return; 44368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 44378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Determine which columns we intersect. 44388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int colGap = columnGap(); 44392fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int halfColGap = colGap / 2; 444068513a70bcd92384395513322f1b801e7bf9c729Steve Block IntPoint columnPoint(columnRectAt(colInfo, 0).location()); 44412fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int logicalOffset = 0; 44425abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick for (unsigned i = 0; i < colInfo->columnCount(); i++) { 44438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Add in half the column gap to the left and right of the rect. 444468513a70bcd92384395513322f1b801e7bf9c729Steve Block IntRect colRect = columnRectAt(colInfo, i); 44452bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) { 44462fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntRect gapAndColumnRect(colRect.x() - halfColGap, colRect.y(), colRect.width() + colGap, colRect.height()); 44472fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (point.x() >= gapAndColumnRect.x() && point.x() < gapAndColumnRect.maxX()) { 44482fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // FIXME: The clamping that follows is not completely right for right-to-left 44492fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // content. 44502fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // Clamp everything above the column to its top left. 44512fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (point.y() < gapAndColumnRect.y()) 44522fc2651226baac27029e38c9d6ef883fa32084dbSteve Block point = gapAndColumnRect.location(); 44532fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // Clamp everything below the column to the next column's top left. If there is 44542fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // no next column, this still maps to just after this column. 44552fc2651226baac27029e38c9d6ef883fa32084dbSteve Block else if (point.y() >= gapAndColumnRect.maxY()) { 44562fc2651226baac27029e38c9d6ef883fa32084dbSteve Block point = gapAndColumnRect.location(); 44572fc2651226baac27029e38c9d6ef883fa32084dbSteve Block point.move(0, gapAndColumnRect.height()); 44582fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 44592fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 44602fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // We're inside the column. Translate the x and y into our column coordinate space. 44612fc2651226baac27029e38c9d6ef883fa32084dbSteve Block point.move(columnPoint.x() - colRect.x(), logicalOffset); 44622fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return; 4463dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block } 44642fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 44652fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // Move to the next position. 44662fc2651226baac27029e38c9d6ef883fa32084dbSteve Block logicalOffset += colRect.height(); 44672fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } else { 44682fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntRect gapAndColumnRect(colRect.x(), colRect.y() - halfColGap, colRect.width(), colRect.height() + colGap); 44692fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (point.y() >= gapAndColumnRect.y() && point.y() < gapAndColumnRect.maxY()) { 44702fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // FIXME: The clamping that follows is not completely right for right-to-left 44712fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // content. 44722fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // Clamp everything above the column to its top left. 44732fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (point.x() < gapAndColumnRect.x()) 44742fc2651226baac27029e38c9d6ef883fa32084dbSteve Block point = gapAndColumnRect.location(); 44752fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // Clamp everything below the column to the next column's top left. If there is 44762fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // no next column, this still maps to just after this column. 44772fc2651226baac27029e38c9d6ef883fa32084dbSteve Block else if (point.x() >= gapAndColumnRect.maxX()) { 44782fc2651226baac27029e38c9d6ef883fa32084dbSteve Block point = gapAndColumnRect.location(); 44792fc2651226baac27029e38c9d6ef883fa32084dbSteve Block point.move(gapAndColumnRect.width(), 0); 44802fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 4481dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block 44822fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // We're inside the column. Translate the x and y into our column coordinate space. 44832fc2651226baac27029e38c9d6ef883fa32084dbSteve Block point.move(logicalOffset, columnPoint.y() - colRect.y()); 44842fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return; 44852fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 44862fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 44872fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // Move to the next position. 44882fc2651226baac27029e38c9d6ef883fa32084dbSteve Block logicalOffset += colRect.width(); 44898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 44908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 44918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 44928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 44938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::adjustRectForColumns(IntRect& r) const 44948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 44958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Just bail if we have no columns. 44968f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!hasColumns()) 44978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 44988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 44995abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick ColumnInfo* colInfo = columnInfo(); 45008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 45018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Begin with a result rect that is empty. 45028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project IntRect result; 45038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 45048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Determine which columns we intersect. 450568513a70bcd92384395513322f1b801e7bf9c729Steve Block unsigned colCount = columnCount(colInfo); 45066c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen if (!colCount) 45076c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen return; 4508e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block 45092fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int logicalLeft = logicalLeftOffsetForContent(); 45102fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int currLogicalOffset = 0; 45112fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 45126c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen for (unsigned i = 0; i < colCount; i++) { 451368513a70bcd92384395513322f1b801e7bf9c729Steve Block IntRect colRect = columnRectAt(colInfo, i); 45148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project IntRect repaintRect = r; 45152bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) { 45162fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int currXOffset = colRect.x() - logicalLeft; 45172fc2651226baac27029e38c9d6ef883fa32084dbSteve Block repaintRect.move(currXOffset, currLogicalOffset); 45182fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalOffset -= colRect.height(); 45192fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } else { 45202fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int currYOffset = colRect.y() - logicalLeft; 45212fc2651226baac27029e38c9d6ef883fa32084dbSteve Block repaintRect.move(currLogicalOffset, currYOffset); 45222fc2651226baac27029e38c9d6ef883fa32084dbSteve Block currLogicalOffset -= colRect.width(); 45232fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 45248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project repaintRect.intersect(colRect); 45258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project result.unite(repaintRect); 45268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 45278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 45288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project r = result; 45298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 45308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 45312fc2651226baac27029e38c9d6ef883fa32084dbSteve BlockIntPoint RenderBlock::flipForWritingModeIncludingColumns(const IntPoint& point) const 45322fc2651226baac27029e38c9d6ef883fa32084dbSteve Block{ 45332fc2651226baac27029e38c9d6ef883fa32084dbSteve Block ASSERT(hasColumns()); 45342fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (!hasColumns() || !style()->isFlippedBlocksWritingMode()) 45352fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return point; 45362fc2651226baac27029e38c9d6ef883fa32084dbSteve Block ColumnInfo* colInfo = columnInfo(); 45372fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int columnLogicalHeight = colInfo->columnHeight(); 45382fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int expandedLogicalHeight = borderBefore() + paddingBefore() + columnCount(colInfo) * columnLogicalHeight + borderAfter() + paddingAfter() + scrollbarLogicalHeight(); 45392bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 45402fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return IntPoint(point.x(), expandedLogicalHeight - point.y()); 45412fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return IntPoint(expandedLogicalHeight - point.x(), point.y()); 45422fc2651226baac27029e38c9d6ef883fa32084dbSteve Block} 45432fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 45442fc2651226baac27029e38c9d6ef883fa32084dbSteve Blockvoid RenderBlock::flipForWritingModeIncludingColumns(IntRect& rect) const 45452fc2651226baac27029e38c9d6ef883fa32084dbSteve Block{ 45462fc2651226baac27029e38c9d6ef883fa32084dbSteve Block ASSERT(hasColumns()); 45472fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (!hasColumns() || !style()->isFlippedBlocksWritingMode()) 45482fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return; 45492fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 45502fc2651226baac27029e38c9d6ef883fa32084dbSteve Block ColumnInfo* colInfo = columnInfo(); 45512fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int columnLogicalHeight = colInfo->columnHeight(); 45522fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int expandedLogicalHeight = borderBefore() + paddingBefore() + columnCount(colInfo) * columnLogicalHeight + borderAfter() + paddingAfter() + scrollbarLogicalHeight(); 45532bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 45542fc2651226baac27029e38c9d6ef883fa32084dbSteve Block rect.setY(expandedLogicalHeight - rect.maxY()); 45552fc2651226baac27029e38c9d6ef883fa32084dbSteve Block else 45562fc2651226baac27029e38c9d6ef883fa32084dbSteve Block rect.setX(expandedLogicalHeight - rect.maxX()); 45572fc2651226baac27029e38c9d6ef883fa32084dbSteve Block} 45582fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 4559692e5dbf12901edacf14812a6fae25462920af42Steve Blockvoid RenderBlock::adjustForColumns(IntSize& offset, const IntPoint& point) const 4560692e5dbf12901edacf14812a6fae25462920af42Steve Block{ 4561692e5dbf12901edacf14812a6fae25462920af42Steve Block if (!hasColumns()) 4562692e5dbf12901edacf14812a6fae25462920af42Steve Block return; 4563692e5dbf12901edacf14812a6fae25462920af42Steve Block 45645abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick ColumnInfo* colInfo = columnInfo(); 45655abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick 45662fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int logicalLeft = logicalLeftOffsetForContent(); 456768513a70bcd92384395513322f1b801e7bf9c729Steve Block size_t colCount = columnCount(colInfo); 45682fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int colLogicalWidth = colInfo->desiredColumnWidth(); 45692fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int colLogicalHeight = colInfo->columnHeight(); 45702fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 457168513a70bcd92384395513322f1b801e7bf9c729Steve Block for (size_t i = 0; i < colCount; ++i) { 45722fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // Compute the edges for a given column in the block progression direction. 45732fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntRect sliceRect = IntRect(logicalLeft, borderBefore() + paddingBefore() + i * colLogicalHeight, colLogicalWidth, colLogicalHeight); 45742bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!isHorizontalWritingMode()) 45752fc2651226baac27029e38c9d6ef883fa32084dbSteve Block sliceRect = sliceRect.transposedRect(); 45762fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 45772fc2651226baac27029e38c9d6ef883fa32084dbSteve 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). 45782fc2651226baac27029e38c9d6ef883fa32084dbSteve Block flipForWritingModeIncludingColumns(sliceRect); 45792fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 45802fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int logicalOffset = style()->isFlippedBlocksWritingMode() ? (colCount - 1 - i) * colLogicalHeight : i * colLogicalHeight; 4581692e5dbf12901edacf14812a6fae25462920af42Steve Block 45822fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // Now we're in the same coordinate space as the point. See if it is inside the rectangle. 45832bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) { 45842fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (point.y() >= sliceRect.y() && point.y() < sliceRect.maxY()) { 45852fc2651226baac27029e38c9d6ef883fa32084dbSteve Block offset.expand(columnRectAt(colInfo, i).x() - logicalLeft, -logicalOffset); 45862fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return; 45872fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 45882fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } else { 45892fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (point.x() >= sliceRect.x() && point.x() < sliceRect.maxX()) { 45902fc2651226baac27029e38c9d6ef883fa32084dbSteve Block offset.expand(-logicalOffset, columnRectAt(colInfo, i).y() - logicalLeft); 45912fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return; 45922fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 45932fc2651226baac27029e38c9d6ef883fa32084dbSteve Block } 4594692e5dbf12901edacf14812a6fae25462920af42Steve Block } 4595692e5dbf12901edacf14812a6fae25462920af42Steve Block} 4596692e5dbf12901edacf14812a6fae25462920af42Steve Block 4597bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsenvoid RenderBlock::computePreferredLogicalWidths() 45988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 4599bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen ASSERT(preferredLogicalWidthsDirty()); 46008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project updateFirstLetter(); 46028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4603a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!isTableCell() && style()->logicalWidth().isFixed() && style()->logicalWidth().value() > 0) 4604a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = computeContentBoxLogicalWidth(style()->logicalWidth().value()); 46058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 4606bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_minPreferredLogicalWidth = 0; 4607bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = 0; 46088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) 4610bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen computeInlinePreferredLogicalWidths(); 46118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 4612bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen computeBlockPreferredLogicalWidths(); 46138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4614bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(m_minPreferredLogicalWidth, m_maxPreferredLogicalWidth); 46158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!style()->autoWrap() && childrenInline()) { 4617bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth; 46188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // A horizontal marquee with inline children has no minimum width. 46208f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (layer() && layer()->marquee() && layer()->marquee()->isHorizontal()) 4621bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_minPreferredLogicalWidth = 0; 46228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 46238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4624f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int scrollbarWidth = 0; 4625f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (hasOverflowClip() && style()->overflowY() == OSCROLL) { 4626f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch layer()->setHasVerticalScrollbar(true); 4627f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch scrollbarWidth = verticalScrollbarWidth(); 4628f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch m_maxPreferredLogicalWidth += scrollbarWidth; 4629f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 4630f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 46318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isTableCell()) { 463228040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu Length w = toRenderTableCell(this)->styleOrColLogicalWidth(); 4633f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (w.isFixed() && w.value() > 0) { 4634bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(m_minPreferredLogicalWidth, computeContentBoxLogicalWidth(w.value())); 4635f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch scrollbarWidth = 0; 4636f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch } 46378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 4638f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch 4639f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch m_minPreferredLogicalWidth += scrollbarWidth; 46408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 46418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4642a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (style()->logicalMinWidth().isFixed() && style()->logicalMinWidth().value() > 0) { 4643a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_maxPreferredLogicalWidth = max(m_maxPreferredLogicalWidth, computeContentBoxLogicalWidth(style()->logicalMinWidth().value())); 4644a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_minPreferredLogicalWidth = max(m_minPreferredLogicalWidth, computeContentBoxLogicalWidth(style()->logicalMinWidth().value())); 46458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 46468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4647a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (style()->logicalMaxWidth().isFixed() && style()->logicalMaxWidth().value() != undefinedLength) { 4648a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_maxPreferredLogicalWidth = min(m_maxPreferredLogicalWidth, computeContentBoxLogicalWidth(style()->logicalMaxWidth().value())); 4649a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_minPreferredLogicalWidth = min(m_minPreferredLogicalWidth, computeContentBoxLogicalWidth(style()->logicalMaxWidth().value())); 46508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 46518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4652f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int borderAndPadding = borderAndPaddingLogicalWidth(); 4653f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch m_minPreferredLogicalWidth += borderAndPadding; 4654f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch m_maxPreferredLogicalWidth += borderAndPadding; 46558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4656bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen setPreferredLogicalWidthsDirty(false); 46578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 46588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46590bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdochstruct InlineMinMaxIterator { 46608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* InlineMinMaxIterator is a class that will iterate over all render objects that contribute to 46618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inline min/max width calculations. Note the following about the way it walks: 46628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (1) Positioned content is skipped (since it does not contribute to min/max width of a block) 46638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (2) We do not drill into the children of floats or replaced elements, since you can't break 46648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project in the middle of such an element. 46658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (3) Inline flows (e.g., <a>, <span>, <i>) are walked twice, since each side can have 46668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project distinct borders/margin/padding that contribute to the min/max width. 46678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project*/ 46688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* parent; 46698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* current; 46708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool endOfInline; 46718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project InlineMinMaxIterator(RenderObject* p, bool end = false) 46738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project :parent(p), current(p), endOfInline(end) {} 46748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* next(); 46768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project}; 46778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectRenderObject* InlineMinMaxIterator::next() 46798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 46808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* result = 0; 46818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool oldEndOfInline = endOfInline; 46828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project endOfInline = false; 46838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (current || current == parent) { 46848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!oldEndOfInline && 46858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (current == parent || 46868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (!current->isFloating() && !current->isReplaced() && !current->isPositioned()))) 46878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project result = current->firstChild(); 46888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!result) { 46898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We hit the end of our inline. (It was empty, e.g., <span></span>.) 4690635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (!oldEndOfInline && current->isRenderInline()) { 46918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project result = current; 46928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project endOfInline = true; 46938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 46948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 46958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 46968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (current && current != parent) { 46978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project result = current->nextSibling(); 46988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (result) break; 46998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project current = current->parent(); 4700635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (current && current != parent && current->isRenderInline()) { 47018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project result = current; 47028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project endOfInline = true; 47038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 47048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 47058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 47068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 47078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!result) 47098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 47108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4711635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (!result->isPositioned() && (result->isText() || result->isFloating() || result->isReplaced() || result->isRenderInline())) 47128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 47138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project current = result; 47158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project result = 0; 47168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 47178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Update our position. 47198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project current = result; 47208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return current; 47218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 47228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstatic int getBPMWidth(int childValue, Length cssUnit) 47248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 47258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (cssUnit.type() != Auto) 47268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return (cssUnit.isFixed() ? cssUnit.value() : childValue); 47278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 47288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 47298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47308f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianstatic int getBorderPaddingMargin(const RenderBoxModelObject* child, bool endOfInline) 47318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 47328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderStyle* cstyle = child->style(); 47332fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (endOfInline) 47342fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return getBPMWidth(child->marginEnd(), cstyle->marginEnd()) + 47352fc2651226baac27029e38c9d6ef883fa32084dbSteve Block getBPMWidth(child->paddingEnd(), cstyle->paddingEnd()) + 47362fc2651226baac27029e38c9d6ef883fa32084dbSteve Block child->borderEnd(); 47372fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return getBPMWidth(child->marginStart(), cstyle->marginStart()) + 47382fc2651226baac27029e38c9d6ef883fa32084dbSteve Block getBPMWidth(child->paddingStart(), cstyle->paddingStart()) + 47392fc2651226baac27029e38c9d6ef883fa32084dbSteve Block child->borderStart(); 47408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 47418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 474281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochstatic inline void stripTrailingSpace(float& inlineMax, float& inlineMin, 47438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* trailingSpaceChild) 47448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 47458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (trailingSpaceChild && trailingSpaceChild->isText()) { 47468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Collapse away the trailing space at the end of a block. 4747635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderText* t = toRenderText(trailingSpaceChild); 47488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project const UChar space = ' '; 47498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project const Font& font = t->style()->font(); // FIXME: This ignores first-line. 475081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float spaceWidth = font.width(TextRun(&space, 1)); 47518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMax -= spaceWidth + font.wordSpacing(); 47528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (inlineMin > inlineMax) 47538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = inlineMax; 47548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 47558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 47568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 475781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochstatic inline void updatePreferredWidth(int& preferredWidth, float& result) 475881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch{ 475981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch int snappedResult = ceilf(result); 476081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch preferredWidth = max(snappedResult, preferredWidth); 476181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch} 476281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 4763bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsenvoid RenderBlock::computeInlinePreferredLogicalWidths() 47648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 476581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float inlineMax = 0; 476681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float inlineMin = 0; 47678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47682fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int cw = containingBlock()->contentLogicalWidth(); 47698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If we are at the start of a line, we want to ignore all white-space. 47718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Also strip spaces if we previously had text that ended in a trailing space. 47728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool stripFrontSpaces = true; 47738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* trailingSpaceChild = 0; 47748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Firefox and Opera will allow a table cell to grow to fit an image inside it under 47768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // very specific cirucumstances (in order to match common WinIE renderings). 47778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Not supporting the quirk has caused us to mis-render some real sites. (See Bugzilla 10517.) 47782fc2651226baac27029e38c9d6ef883fa32084dbSteve Block bool allowImagesToBreak = !document()->inQuirksMode() || !isTableCell() || !style()->logicalWidth().isIntrinsicOrAuto(); 47798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool autoWrap, oldAutoWrap; 47818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project autoWrap = oldAutoWrap = style()->autoWrap(); 47828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project InlineMinMaxIterator childIterator(this); 47848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool addedTextIndent = false; // Only gets added in once. 47858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* prevFloat = 0; 47868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (RenderObject* child = childIterator.next()) { 47878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project autoWrap = child->isReplaced() ? child->parent()->style()->autoWrap() : 47888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project child->style()->autoWrap(); 47898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!child->isBR()) { 47918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Step One: determine whether or not we need to go ahead and 47928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // terminate our current line. Each discrete chunk can become 47938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the new min-width, if it is the widest chunk seen so far, and 47948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // it can also become the max-width. 47958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 47968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Children fall into three categories: 47978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (1) An inline flow object. These objects always have a min/max of 0, 47988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // and are included in the iteration solely so that their margins can 47998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // be added in. 48008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 48018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (2) An inline non-text non-flow object, e.g., an inline replaced element. 48028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // These objects can always be on a line by themselves, so in this situation 48038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // we need to go ahead and break the current line, and then add in our own 48048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // margins and min/max width on its own line, and then terminate the line. 48058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 48068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (3) A text object. Text runs can have breakable characters at the start, 48078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the middle or the end. They may also lose whitespace off the front if 48088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // we're already ignoring whitespace. In order to compute accurate min-width 48098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // information, we need three pieces of information. 48108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (a) the min-width of the first non-breakable run. Should be 0 if the text string 48118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // starts with whitespace. 48128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (b) the min-width of the last non-breakable run. Should be 0 if the text string 48138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // ends with whitespace. 48148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (c) the min/max width of the string (trimmed for whitespace). 48158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 48168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the text string starts with whitespace, then we need to go ahead and 48178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // terminate our current line (unless we're already in a whitespace stripping 48188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // mode. 48198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // 48208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the text string has a breakable character in the middle, but didn't start 48218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // with whitespace, then we add the width of the first non-breakable run and 48228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // then end the current line. We then need to use the intermediate min/max width 48238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // values (if any of them are larger than our current min/max). We then look at 48248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the width of the last non-breakable run and use that to start a new line 48258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (unless we end in whitespace). 48268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderStyle* cstyle = child->style(); 482781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float childMin = 0; 482881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float childMax = 0; 48298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!child->isText()) { 48318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Case (1) and (2). Inline replaced and inline flow elements. 4832635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (child->isRenderInline()) { 48338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Add in padding/border/margin from the appropriate side of 48348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the element. 483581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float bpm = getBorderPaddingMargin(toRenderInline(child), childIterator.endOfInline); 48368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childMin += bpm; 48378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childMax += bpm; 48388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin += childMin; 48408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMax += childMax; 48418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4842bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen child->setPreferredLogicalWidthsDirty(false); 48438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 48448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Inline replaced elts add in their margins to their min/max values. 484581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float margins = 0; 48462fc2651226baac27029e38c9d6ef883fa32084dbSteve Block Length startMargin = cstyle->marginStart(); 48472fc2651226baac27029e38c9d6ef883fa32084dbSteve Block Length endMargin = cstyle->marginEnd(); 48482fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (startMargin.isFixed()) 48492fc2651226baac27029e38c9d6ef883fa32084dbSteve Block margins += startMargin.value(); 48502fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (endMargin.isFixed()) 48512fc2651226baac27029e38c9d6ef883fa32084dbSteve Block margins += endMargin.value(); 48528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childMin += margins; 48538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childMax += margins; 48548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 48558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 48568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!child->isRenderInline() && !child->isText()) { 48588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Case (2). Inline replaced elements and floats. 48598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Go ahead and terminate the current line as far as 48608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // minwidth is concerned. 4861bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen childMin += child->minPreferredLogicalWidth(); 4862bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen childMax += child->maxPreferredLogicalWidth(); 48638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool clearPreviousFloat; 48658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isFloating()) { 48668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project clearPreviousFloat = (prevFloat 48678f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian && ((prevFloat->style()->floating() == FLEFT && (child->style()->clear() & CLEFT)) 48688f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian || (prevFloat->style()->floating() == FRIGHT && (child->style()->clear() & CRIGHT)))); 48698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project prevFloat = child; 48708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else 48718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project clearPreviousFloat = false; 48728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool canBreakReplacedElement = !child->isImage() || allowImagesToBreak; 48748f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if ((canBreakReplacedElement && (autoWrap || oldAutoWrap)) || clearPreviousFloat) { 487581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 48768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = 0; 48778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 48788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If we're supposed to clear the previous float, then terminate maxwidth as well. 48808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (clearPreviousFloat) { 488181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_maxPreferredLogicalWidth, inlineMax); 48828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMax = 0; 48838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 48848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Add in text-indent. This is added in only once. 48868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int ti = 0; 48878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!addedTextIndent) { 48888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project addedTextIndent = true; 48898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ti = style()->textIndent().calcMinValue(cw); 48902fc2651226baac27029e38c9d6ef883fa32084dbSteve Block childMin += ti; 48912fc2651226baac27029e38c9d6ef883fa32084dbSteve Block childMax += ti; 48928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 48938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Add our width to the max. 48958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMax += childMax; 48968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 48978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!autoWrap || !canBreakReplacedElement) { 48988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isFloating()) 489981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, childMin); 49008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 49018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin += childMin; 49028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 49038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Now check our line. 490481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, childMin); 49058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Now start a new line. 49078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = 0; 49088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We are no longer stripping whitespace at the start of 49118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // a line. 49128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!child->isFloating()) { 49138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project stripFrontSpaces = false; 49148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project trailingSpaceChild = 0; 49158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else if (child->isText()) { 49178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Case (3). Text. 4918635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderText* t = toRenderText(child); 49198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (t->isWordBreak()) { 492181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 49228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = 0; 49238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 49248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49262bde8e466a4451c7319e3a072d118917957d6554Steve Block if (t->style()->hasTextCombine() && t->isCombineText()) 49272fc2651226baac27029e38c9d6ef883fa32084dbSteve Block toRenderCombineText(t)->combineText(); 49282fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 49298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Determine if we have a breakable character. Pass in 49308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // whether or not we should ignore any spaces at the front 49318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // of the string. If those are going to be stripped out, 49328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // then they shouldn't be considered in the breakable char 49338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // check. 49348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool hasBreakableChar, hasBreak; 493581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float beginMin, endMin; 49368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool beginWS, endWS; 493781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch float beginMax, endMax; 49388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project t->trimmedPrefWidths(inlineMax, beginMin, beginWS, endMin, endWS, 49398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project hasBreakableChar, hasBreak, beginMax, endMax, 49408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childMin, childMax, stripFrontSpaces); 49418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // This text object will not be rendered, but it may still provide a breaking opportunity. 49438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!hasBreak && childMax == 0) { 49448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (autoWrap && (beginWS || endWS)) { 494581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 49468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = 0; 49478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 49498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (stripFrontSpaces) 49528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project trailingSpaceChild = child; 49538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 49548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project trailingSpaceChild = 0; 49558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Add in text-indent. This is added in only once. 49578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int ti = 0; 49588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!addedTextIndent) { 49598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project addedTextIndent = true; 49608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ti = style()->textIndent().calcMinValue(cw); 49618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childMin+=ti; beginMin += ti; 49628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childMax+=ti; beginMax += ti; 49638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If we have no breakable characters at all, 49668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // then this is the easy case. We add ourselves to the current 49678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // min and max and continue. 49688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!hasBreakableChar) { 49698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin += childMin; 49708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 49718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We have a breakable character. Now we need to know if 49728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // we start and end with whitespace. 49738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (beginWS) 49748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Go ahead and end the current line. 497581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 49768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 49778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin += beginMin; 497881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 49798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project childMin -= ti; 49808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = childMin; 49838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (endWS) { 49858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We end in whitespace, which means we can go ahead 49868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // and end our current line. 498781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 49888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = 0; 49898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 499081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 49918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = endMin; 49928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 49948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 49958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (hasBreak) { 49968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMax += beginMax; 499781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_maxPreferredLogicalWidth, inlineMax); 499881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_maxPreferredLogicalWidth, childMax); 49998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMax = endMax; 50008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else 50018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMax += childMax; 50028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5003643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 5004643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // Ignore spaces after a list marker. 5005643ca7872b450ea4efacab6188849e5aac2ba161Steve Block if (child->isListMarker()) 5006643ca7872b450ea4efacab6188849e5aac2ba161Steve Block stripFrontSpaces = true; 50078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 500881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 500981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_maxPreferredLogicalWidth, inlineMax); 50108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project inlineMin = inlineMax = 0; 50118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project stripFrontSpaces = true; 50128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project trailingSpaceChild = 0; 50138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project oldAutoWrap = autoWrap; 50168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->collapseWhiteSpace()) 50198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project stripTrailingSpace(inlineMax, inlineMin, trailingSpaceChild); 50208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 502181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_minPreferredLogicalWidth, inlineMin); 502281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch updatePreferredWidth(m_maxPreferredLogicalWidth, inlineMax); 50238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 50248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// Use a very large value (in effect infinite). 50268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#define BLOCK_MAX_WIDTH 15000 50278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5028bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsenvoid RenderBlock::computeBlockPreferredLogicalWidths() 50298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 50308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool nowrap = style()->whiteSpace() == NOWRAP; 50318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject *child = firstChild(); 50338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int floatLeftWidth = 0, floatRightWidth = 0; 50348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (child) { 50358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Positioned children don't affect the min/max width 50368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isPositioned()) { 50378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project child = child->nextSibling(); 50388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project continue; 50398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50418f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (child->isFloating() || (child->isBox() && toRenderBox(child)->avoidsFloats())) { 50428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int floatTotalWidth = floatLeftWidth + floatRightWidth; 50438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->style()->clear() & CLEFT) { 5044bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(floatTotalWidth, m_maxPreferredLogicalWidth); 50458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatLeftWidth = 0; 50468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->style()->clear() & CRIGHT) { 5048bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(floatTotalWidth, m_maxPreferredLogicalWidth); 50498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatRightWidth = 0; 50508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // A margin basically has three types: fixed, percentage, and auto (variable). 50548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Auto and percentage margins simply become 0 when computing min/max width. 50558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Fixed margins can be added in as is. 50562fc2651226baac27029e38c9d6ef883fa32084dbSteve Block Length startMarginLength = child->style()->marginStart(); 50572fc2651226baac27029e38c9d6ef883fa32084dbSteve Block Length endMarginLength = child->style()->marginEnd(); 50582fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int margin = 0; 50592fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int marginStart = 0; 50602fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int marginEnd = 0; 50612fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (startMarginLength.isFixed()) 50622fc2651226baac27029e38c9d6ef883fa32084dbSteve Block marginStart += startMarginLength.value(); 50632fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (endMarginLength.isFixed()) 50642fc2651226baac27029e38c9d6ef883fa32084dbSteve Block marginEnd += endMarginLength.value(); 50652fc2651226baac27029e38c9d6ef883fa32084dbSteve Block margin = marginStart + marginEnd; 50668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5067bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int w = child->minPreferredLogicalWidth() + margin; 5068bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_minPreferredLogicalWidth = max(w, m_minPreferredLogicalWidth); 50698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // IE ignores tables for calculation of nowrap. Makes some sense. 50718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (nowrap && !child->isTable()) 5072bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(w, m_maxPreferredLogicalWidth); 50738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5074bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen w = child->maxPreferredLogicalWidth() + margin; 50758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!child->isFloating()) { 50778f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (child->isBox() && toRenderBox(child)->avoidsFloats()) { 50788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Determine a left and right max value based off whether or not the floats can fit in the 50798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // margins of the object. For negative margins, we will attempt to overlap the float if the negative margin 50808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // is smaller than the float width. 50812fc2651226baac27029e38c9d6ef883fa32084dbSteve Block bool ltr = containingBlock()->style()->isLeftToRightDirection(); 50822fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int marginLogicalLeft = ltr ? marginStart : marginEnd; 50832fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int marginLogicalRight = ltr ? marginEnd : marginStart; 50842fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int maxLeft = marginLogicalLeft > 0 ? max(floatLeftWidth, marginLogicalLeft) : floatLeftWidth + marginLogicalLeft; 50852fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int maxRight = marginLogicalRight > 0 ? max(floatRightWidth, marginLogicalRight) : floatRightWidth + marginLogicalRight; 5086bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen w = child->maxPreferredLogicalWidth() + maxLeft + maxRight; 50878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project w = max(w, floatLeftWidth + floatRightWidth); 50888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 5090bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(floatLeftWidth + floatRightWidth, m_maxPreferredLogicalWidth); 50918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatLeftWidth = floatRightWidth = 0; 50928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 50938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (child->isFloating()) { 50958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->floating() == FLEFT) 50968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatLeftWidth += w; 50978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 50988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project floatRightWidth += w; 50998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else 5100bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(w, m_maxPreferredLogicalWidth); 51018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 51028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // A very specific WinIE quirk. 51038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Example: 51048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project /* 51058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project <div style="position:absolute; width:100px; top:50px;"> 51068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project <div style="position:absolute;left:0px;top:50px;height:50px;background-color:green"> 51078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project <table style="width:100%"><tr><td></table> 51088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project </div> 51098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project </div> 51108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 51118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // In the above example, the inner absolute positioned block should have a computed width 51128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // of 100px because of the table. 51138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We can achieve this effect by making the maxwidth of blocks that contain tables 51148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // with percentage widths be infinite (as long as they are not inside a table cell). 51152fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (document()->inQuirksMode() && child->style()->logicalWidth().isPercent() && 5116bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen !isTableCell() && child->isTable() && m_maxPreferredLogicalWidth < BLOCK_MAX_WIDTH) { 51178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderBlock* cb = containingBlock(); 51188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (!cb->isRenderView() && !cb->isTableCell()) 51198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project cb = cb->containingBlock(); 51208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!cb->isTableCell()) 5121bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = BLOCK_MAX_WIDTH; 51228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 51238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 51248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project child = child->nextSibling(); 51258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 51268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 51278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Always make sure these values are non-negative. 5128bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_minPreferredLogicalWidth = max(0, m_minPreferredLogicalWidth); 5129bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(0, m_maxPreferredLogicalWidth); 51308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5131bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen m_maxPreferredLogicalWidth = max(floatLeftWidth + floatRightWidth, m_maxPreferredLogicalWidth); 51328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 51338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 51348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool RenderBlock::hasLineIfEmpty() const 51358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 51360bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch if (!node()) 51370bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch return false; 51380bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 51392bde8e466a4451c7319e3a072d118917957d6554Steve Block if (node()->rendererIsEditable() && node()->rootEditableElement() == node()) 51400bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch return true; 51410bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 5142cad810f21b803229eb11403f9209855525a25d57Steve Block if (node()->isShadowRoot() && (node()->shadowHost()->hasTagName(inputTag))) 51430bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch return true; 51440bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 51450bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch return false; 51468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 51478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5148a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::lineHeight(bool firstLine, LineDirectionMode direction, LinePositionMode linePositionMode) const 51498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 51508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Inline blocks are replaced elements. Otherwise, just pass off to 51518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the base class. If we're being queried as though we're the root line 51528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // box, then the fact that we're an inline-block is irrelevant, and we behave 51538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // just like a block. 5154a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (isReplaced() && linePositionMode == PositionOnContainingLine) 5155a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return RenderBox::lineHeight(firstLine, direction, linePositionMode); 5156a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 51578f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (firstLine && document()->usesFirstLineRules()) { 51588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderStyle* s = style(firstLine); 51598f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (s != style()) 51608f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return s->computedLineHeight(); 51618f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 51628f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 51638f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (m_lineHeight == -1) 51648f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian m_lineHeight = style()->computedLineHeight(); 51658f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 51668f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return m_lineHeight; 51678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 51688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 51696b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brennerint RenderBlock::baselinePosition(FontBaseline baselineType, bool firstLine, LineDirectionMode direction, LinePositionMode linePositionMode) const 51708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 51718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Inline blocks are replaced elements. Otherwise, just pass off to 51728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the base class. If we're being queried as though we're the root line 51738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // box, then the fact that we're an inline-block is irrelevant, and we behave 51748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // just like a block. 5175a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (isReplaced() && linePositionMode == PositionOnContainingLine) { 51768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // For "leaf" theme objects, let the theme decide what the baseline position is. 51778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: Might be better to have a custom CSS property instead, so that if the theme 51788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // is turned off, checkboxes/radios will still have decent baselines. 5179a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // FIXME: Need to patch form controls to deal with vertical lines. 51808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->hasAppearance() && !theme()->isControlContainer(style()->appearance())) 51818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return theme()->baselinePosition(this); 51828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 51838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // CSS2.1 states that the baseline of an inline block is the baseline of the last line box in 51848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the normal flow. We make an exception for marquees, since their baselines are meaningless 51858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // (the content inside them moves). This matches WinIE as well, which just bottom-aligns them. 51868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We also give up on finding a baseline if we have a vertical scrollbar, or if we are scrolled 51878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // vertically (e.g., an overflow:hidden block that has had scrollTop moved) or if the baseline is outside 51888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // of our content box. 5189a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch bool ignoreBaseline = (layer() && (layer()->marquee() || (direction == HorizontalLine ? (layer()->verticalScrollbar() || layer()->scrollYOffset() != 0) 51906b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner : (layer()->horizontalScrollbar() || layer()->scrollXOffset() != 0)))) || (isWritingModeRoot() && !isRubyRun()); 51916b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner 5192a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int baselinePos = ignoreBaseline ? -1 : lastLineBoxBaseline(); 5193a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 5194a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int bottomOfContent = direction == HorizontalLine ? borderTop() + paddingTop() + contentHeight() : borderRight() + paddingRight() + contentWidth(); 5195a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (baselinePos != -1 && baselinePos <= bottomOfContent) 5196a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return direction == HorizontalLine ? marginTop() + baselinePos : marginRight() + baselinePos; 5197a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 51986b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner return RenderBox::baselinePosition(baselineType, firstLine, direction, linePositionMode); 51998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5200a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 52012fc2651226baac27029e38c9d6ef883fa32084dbSteve Block const FontMetrics& fontMetrics = style(firstLine)->fontMetrics(); 52022fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return fontMetrics.ascent(baselineType) + (lineHeight(firstLine, direction, linePositionMode) - fontMetrics.height()) / 2; 52038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 52048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 52058f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianint RenderBlock::firstLineBoxBaseline() const 52068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 52076b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (!isBlockFlow() || (isWritingModeRoot() && !isRubyRun())) 52088f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return -1; 52098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 52108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) { 52118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (firstLineBox()) 52122fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return firstLineBox()->logicalTop() + style(true)->fontMetrics().ascent(firstRootBox()->baselineType()); 52138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 52148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return -1; 52158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 52168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 5217635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (RenderBox* curr = firstChildBox(); curr; curr = curr->nextSiblingBox()) { 52188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!curr->isFloatingOrPositioned()) { 52198f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int result = curr->firstLineBoxBaseline(); 52208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (result != -1) 5221a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return curr->logicalTop() + result; // Translate to our coordinate space. 52228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 52238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 52248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 52258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 52268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return -1; 52278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 52288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 52298f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianint RenderBlock::lastLineBoxBaseline() const 52308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 52316b70adc33054f8aee8c54d0f460458a9df11b8a5Russell Brenner if (!isBlockFlow() || (isWritingModeRoot() && !isRubyRun())) 52328f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return -1; 52338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 52342bde8e466a4451c7319e3a072d118917957d6554Steve Block LineDirectionMode lineDirection = isHorizontalWritingMode() ? HorizontalLine : VerticalLine; 5235a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 52368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) { 5237a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!firstLineBox() && hasLineIfEmpty()) { 52382fc2651226baac27029e38c9d6ef883fa32084dbSteve Block const FontMetrics& fontMetrics = firstLineStyle()->fontMetrics(); 52392fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return fontMetrics.ascent() 52402fc2651226baac27029e38c9d6ef883fa32084dbSteve Block + (lineHeight(true, lineDirection, PositionOfInteriorLineBoxes) - fontMetrics.height()) / 2 52412fc2651226baac27029e38c9d6ef883fa32084dbSteve Block + (lineDirection == HorizontalLine ? borderTop() + paddingTop() : borderRight() + paddingRight()); 5242a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 52438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (lastLineBox()) 52442fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return lastLineBox()->logicalTop() + style(lastLineBox() == firstLineBox())->fontMetrics().ascent(lastRootBox()->baselineType()); 52458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return -1; 5246a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else { 52478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool haveNormalFlowChild = false; 5248635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (RenderBox* curr = lastChildBox(); curr; curr = curr->previousSiblingBox()) { 52498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!curr->isFloatingOrPositioned()) { 52508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project haveNormalFlowChild = true; 52518f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int result = curr->lastLineBoxBaseline(); 52528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (result != -1) 5253a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return curr->logicalTop() + result; // Translate to our coordinate space. 52548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 52558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5256a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!haveNormalFlowChild && hasLineIfEmpty()) { 52572fc2651226baac27029e38c9d6ef883fa32084dbSteve Block const FontMetrics& fontMetrics = firstLineStyle()->fontMetrics(); 52582fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return fontMetrics.ascent() 52592fc2651226baac27029e38c9d6ef883fa32084dbSteve Block + (lineHeight(true, lineDirection, PositionOfInteriorLineBoxes) - fontMetrics.height()) / 2 52602fc2651226baac27029e38c9d6ef883fa32084dbSteve Block + (lineDirection == HorizontalLine ? borderTop() + paddingTop() : borderRight() + paddingRight()); 5261a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 52628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 52638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 52648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return -1; 52658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 52668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5267635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectbool RenderBlock::containsNonZeroBidiLevel() const 5268635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project{ 5269635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (RootInlineBox* root = firstRootBox(); root; root = root->nextRootBox()) { 5270635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (InlineBox* box = root->firstLeafChild(); box; box = box->nextLeafChild()) { 5271635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (box->bidiLevel()) 5272635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return true; 5273635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project } 5274635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project } 5275635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return false; 5276635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} 5277635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 52788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectRenderBlock* RenderBlock::firstLineBlock() const 52798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 5280635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderBlock* firstLineBlock = const_cast<RenderBlock*>(this); 52818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool hasPseudo = false; 52828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (true) { 52838f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian hasPseudo = firstLineBlock->style()->hasPseudoStyle(FIRST_LINE); 52848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (hasPseudo) 52858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 52868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* parentBlock = firstLineBlock->parent(); 52878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (firstLineBlock->isReplaced() || firstLineBlock->isFloating() || 52888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project !parentBlock || parentBlock->firstChild() != firstLineBlock || !parentBlock->isBlockFlow()) 52898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 5290635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project ASSERT(parentBlock->isRenderBlock()); 52918f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian firstLineBlock = toRenderBlock(parentBlock); 52928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 52938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 52948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!hasPseudo) 52958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 52968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5297635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return firstLineBlock; 52988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 52998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 530068513a70bcd92384395513322f1b801e7bf9c729Steve Blockstatic RenderStyle* styleForFirstLetter(RenderObject* firstLetterBlock, RenderObject* firstLetterContainer) 530168513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 530268513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderStyle* pseudoStyle = firstLetterBlock->getCachedPseudoStyle(FIRST_LETTER, firstLetterContainer->firstLineStyle()); 530368513a70bcd92384395513322f1b801e7bf9c729Steve Block // Force inline display (except for floating first-letters). 530468513a70bcd92384395513322f1b801e7bf9c729Steve Block pseudoStyle->setDisplay(pseudoStyle->isFloating() ? BLOCK : INLINE); 530568513a70bcd92384395513322f1b801e7bf9c729Steve Block // CSS2 says first-letter can't be positioned. 530668513a70bcd92384395513322f1b801e7bf9c729Steve Block pseudoStyle->setPosition(StaticPosition); 530768513a70bcd92384395513322f1b801e7bf9c729Steve Block return pseudoStyle; 530868513a70bcd92384395513322f1b801e7bf9c729Steve Block} 530968513a70bcd92384395513322f1b801e7bf9c729Steve Block 5310a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch// CSS 2.1 http://www.w3.org/TR/CSS21/selector.html#first-letter 5311a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch// "Punctuation (i.e, characters defined in Unicode [UNICODE] in the "open" (Ps), "close" (Pe), 5312a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch// "initial" (Pi). "final" (Pf) and "other" (Po) punctuation classes), that precedes or follows the first letter should be included" 5313a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochstatic inline bool isPunctuationForFirstLetter(UChar c) 5314a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 5315a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch CharCategory charCategory = category(c); 5316a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return charCategory == Punctuation_Open 5317a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch || charCategory == Punctuation_Close 5318a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch || charCategory == Punctuation_InitialQuote 5319a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch || charCategory == Punctuation_FinalQuote 5320a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch || charCategory == Punctuation_Other; 5321a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 5322a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 5323a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochstatic inline bool shouldSkipForFirstLetter(UChar c) 5324a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 5325a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return isSpaceOrNewline(c) || c == noBreakSpace || isPunctuationForFirstLetter(c); 5326a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 5327a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 53288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::updateFirstLetter() 53298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 53308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!document()->usesFirstLetterRules()) 53318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 53328f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // Don't recur 53338f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (style()->styleType() == FIRST_LETTER) 53348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 53358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 53368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: We need to destroy the first-letter object if it is no longer the first child. Need to find 53378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // an efficient way to check for that situation though before implementing anything. 53388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* firstLetterBlock = this; 53398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool hasPseudoStyle = false; 53408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (true) { 53418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We only honor first-letter if the firstLetterBlock can have children in the DOM. This correctly 53428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // prevents form controls from honoring first-letter. 53438f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian hasPseudoStyle = firstLetterBlock->style()->hasPseudoStyle(FIRST_LETTER) 53448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project && firstLetterBlock->canHaveChildren(); 53458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (hasPseudoStyle) 53468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 53478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* parentBlock = firstLetterBlock->parent(); 53488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (firstLetterBlock->isReplaced() || !parentBlock || parentBlock->firstChild() != firstLetterBlock || 53498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project !parentBlock->isBlockFlow()) 53508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 53518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project firstLetterBlock = parentBlock; 53528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 53538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 53548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!hasPseudoStyle) 53558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 53568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 53578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Drill into inlines looking for our first text child. 53588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject* currChild = firstLetterBlock->firstChild(); 53596c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen while (currChild && ((!currChild->isReplaced() && !currChild->isRenderButton() && !currChild->isMenuList()) || currChild->isFloatingOrPositioned()) && !currChild->isText()) { 53608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (currChild->isFloatingOrPositioned()) { 53616c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen if (currChild->style()->styleType() == FIRST_LETTER) { 53626c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen currChild = currChild->firstChild(); 53638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 53646c2af9490927c3c5959b5cb07461b646f8b32f6cKristian Monsen } 53658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project currChild = currChild->nextSibling(); 53668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else 53678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project currChild = currChild->firstChild(); 53688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 53698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 53708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Get list markers out of the way. 53718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (currChild && currChild->isListMarker()) 53728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project currChild = currChild->nextSibling(); 53738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 53748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!currChild) 53758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 53768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 53778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the child already has style, then it has already been created, so we just want 53788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // to update it. 537968513a70bcd92384395513322f1b801e7bf9c729Steve Block if (currChild->parent()->style()->styleType() == FIRST_LETTER) { 538068513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderObject* firstLetter = currChild->parent(); 538168513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderObject* firstLetterContainer = firstLetter->parent(); 538268513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderStyle* pseudoStyle = styleForFirstLetter(firstLetterBlock, firstLetterContainer); 538368513a70bcd92384395513322f1b801e7bf9c729Steve Block 538468513a70bcd92384395513322f1b801e7bf9c729Steve Block if (Node::diff(firstLetter->style(), pseudoStyle) == Node::Detach) { 538568513a70bcd92384395513322f1b801e7bf9c729Steve Block // The first-letter renderer needs to be replaced. Create a new renderer of the right type. 538668513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderObject* newFirstLetter; 538768513a70bcd92384395513322f1b801e7bf9c729Steve Block if (pseudoStyle->display() == INLINE) 538868513a70bcd92384395513322f1b801e7bf9c729Steve Block newFirstLetter = new (renderArena()) RenderInline(document()); 538968513a70bcd92384395513322f1b801e7bf9c729Steve Block else 539068513a70bcd92384395513322f1b801e7bf9c729Steve Block newFirstLetter = new (renderArena()) RenderBlock(document()); 539168513a70bcd92384395513322f1b801e7bf9c729Steve Block newFirstLetter->setStyle(pseudoStyle); 539268513a70bcd92384395513322f1b801e7bf9c729Steve Block 539368513a70bcd92384395513322f1b801e7bf9c729Steve Block // Move the first letter into the new renderer. 539468513a70bcd92384395513322f1b801e7bf9c729Steve Block view()->disableLayoutState(); 539568513a70bcd92384395513322f1b801e7bf9c729Steve Block while (RenderObject* child = firstLetter->firstChild()) { 539668513a70bcd92384395513322f1b801e7bf9c729Steve Block if (child->isText()) 53972daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch toRenderText(child)->removeAndDestroyTextBoxes(); 539868513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetter->removeChild(child); 539968513a70bcd92384395513322f1b801e7bf9c729Steve Block newFirstLetter->addChild(child, 0); 540068513a70bcd92384395513322f1b801e7bf9c729Steve Block } 540181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 540281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch RenderTextFragment* remainingText = 0; 540381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch RenderObject* nextSibling = firstLetter->nextSibling(); 540481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch RenderObject* next = nextSibling; 540581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch while (next) { 540681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (next->isText() && toRenderText(next)->isTextFragment()) { 540781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch remainingText = toRenderTextFragment(next); 540881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch break; 540981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch } 541081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch next = next->nextSibling(); 541181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch } 541281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (remainingText) { 541381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch ASSERT(remainingText->node()->renderer() == remainingText); 541481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch // Replace the old renderer with the new one. 541581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch remainingText->setFirstLetter(newFirstLetter); 541681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch } 541768513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetter->destroy(); 541868513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetter = newFirstLetter; 541981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch firstLetterContainer->addChild(firstLetter, nextSibling); 542068513a70bcd92384395513322f1b801e7bf9c729Steve Block view()->enableLayoutState(); 542168513a70bcd92384395513322f1b801e7bf9c729Steve Block } else 542268513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetter->setStyle(pseudoStyle); 542368513a70bcd92384395513322f1b801e7bf9c729Steve Block 542468513a70bcd92384395513322f1b801e7bf9c729Steve Block for (RenderObject* genChild = firstLetter->firstChild(); genChild; genChild = genChild->nextSibling()) { 54258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (genChild->isText()) 542668513a70bcd92384395513322f1b801e7bf9c729Steve Block genChild->setStyle(pseudoStyle); 54278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 542868513a70bcd92384395513322f1b801e7bf9c729Steve Block 54298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 54308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 54318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 543268513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!currChild->isText() || currChild->isBR()) 543368513a70bcd92384395513322f1b801e7bf9c729Steve Block return; 543468513a70bcd92384395513322f1b801e7bf9c729Steve Block 54358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the child does not already have style, we create it here. 543668513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderObject* firstLetterContainer = currChild->parent(); 54378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 543868513a70bcd92384395513322f1b801e7bf9c729Steve Block // Our layout state is not valid for the repaints we are going to trigger by 543968513a70bcd92384395513322f1b801e7bf9c729Steve Block // adding and removing children of firstLetterContainer. 544068513a70bcd92384395513322f1b801e7bf9c729Steve Block view()->disableLayoutState(); 544168513a70bcd92384395513322f1b801e7bf9c729Steve Block 544268513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderText* textObj = toRenderText(currChild); 544368513a70bcd92384395513322f1b801e7bf9c729Steve Block 544468513a70bcd92384395513322f1b801e7bf9c729Steve Block // Create our pseudo style now that we have our firstLetterContainer determined. 544568513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderStyle* pseudoStyle = styleForFirstLetter(firstLetterBlock, firstLetterContainer); 544668513a70bcd92384395513322f1b801e7bf9c729Steve Block 544768513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderObject* firstLetter = 0; 544868513a70bcd92384395513322f1b801e7bf9c729Steve Block if (pseudoStyle->display() == INLINE) 544968513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetter = new (renderArena()) RenderInline(document()); 545068513a70bcd92384395513322f1b801e7bf9c729Steve Block else 545168513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetter = new (renderArena()) RenderBlock(document()); 545268513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetter->setStyle(pseudoStyle); 545368513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetterContainer->addChild(firstLetter, currChild); 545468513a70bcd92384395513322f1b801e7bf9c729Steve Block 545568513a70bcd92384395513322f1b801e7bf9c729Steve Block // The original string is going to be either a generated content string or a DOM node's 545668513a70bcd92384395513322f1b801e7bf9c729Steve Block // string. We want the original string before it got transformed in case first-letter has 545768513a70bcd92384395513322f1b801e7bf9c729Steve Block // no text-transform or a different text-transform applied to it. 545868513a70bcd92384395513322f1b801e7bf9c729Steve Block RefPtr<StringImpl> oldText = textObj->originalText(); 545968513a70bcd92384395513322f1b801e7bf9c729Steve Block ASSERT(oldText); 546068513a70bcd92384395513322f1b801e7bf9c729Steve Block 546168513a70bcd92384395513322f1b801e7bf9c729Steve Block if (oldText && oldText->length() > 0) { 546268513a70bcd92384395513322f1b801e7bf9c729Steve Block unsigned length = 0; 546368513a70bcd92384395513322f1b801e7bf9c729Steve Block 5464a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Account for leading spaces and punctuation. 5465a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch while (length < oldText->length() && shouldSkipForFirstLetter((*oldText)[length])) 54668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project length++; 54678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5468a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Account for first letter. 546968513a70bcd92384395513322f1b801e7bf9c729Steve Block length++; 5470a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 5471a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Keep looking for whitespace and allowed punctuation, but avoid 5472a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // accumulating just whitespace into the :first-letter. 5473a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch for (unsigned scanLength = length; scanLength < oldText->length(); ++scanLength) { 5474a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch UChar c = (*oldText)[scanLength]; 5475a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 5476a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!shouldSkipForFirstLetter(c)) 5477a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 547868513a70bcd92384395513322f1b801e7bf9c729Steve Block 5479a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (isPunctuationForFirstLetter(c)) 5480a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch length = scanLength + 1; 5481a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 5482a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 5483a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Construct a text fragment for the text after the first letter. 5484a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // This text fragment might be empty. 548568513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderTextFragment* remainingText = 548668513a70bcd92384395513322f1b801e7bf9c729Steve Block new (renderArena()) RenderTextFragment(textObj->node() ? textObj->node() : textObj->document(), oldText.get(), length, oldText->length() - length); 548768513a70bcd92384395513322f1b801e7bf9c729Steve Block remainingText->setStyle(textObj->style()); 548868513a70bcd92384395513322f1b801e7bf9c729Steve Block if (remainingText->node()) 548968513a70bcd92384395513322f1b801e7bf9c729Steve Block remainingText->node()->setRenderer(remainingText); 549068513a70bcd92384395513322f1b801e7bf9c729Steve Block 5491ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch firstLetterContainer->addChild(remainingText, textObj); 549268513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetterContainer->removeChild(textObj); 549368513a70bcd92384395513322f1b801e7bf9c729Steve Block remainingText->setFirstLetter(firstLetter); 549468513a70bcd92384395513322f1b801e7bf9c729Steve Block 549568513a70bcd92384395513322f1b801e7bf9c729Steve Block // construct text fragment for the first letter 549668513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderTextFragment* letter = 549768513a70bcd92384395513322f1b801e7bf9c729Steve Block new (renderArena()) RenderTextFragment(remainingText->node() ? remainingText->node() : remainingText->document(), oldText.get(), 0, length); 549868513a70bcd92384395513322f1b801e7bf9c729Steve Block letter->setStyle(pseudoStyle); 549968513a70bcd92384395513322f1b801e7bf9c729Steve Block firstLetter->addChild(letter); 550068513a70bcd92384395513322f1b801e7bf9c729Steve Block 550168513a70bcd92384395513322f1b801e7bf9c729Steve Block textObj->destroy(); 55028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 550368513a70bcd92384395513322f1b801e7bf9c729Steve Block view()->enableLayoutState(); 55048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 55058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 55068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// Helper methods for obtaining the last line, computing line counts and heights for line counts 55078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// (crawling into blocks). 55088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstatic bool shouldCheckLines(RenderObject* obj) 55098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 5510635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return !obj->isFloatingOrPositioned() && !obj->isRunIn() && 55118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project obj->isBlockFlow() && obj->style()->height().isAuto() && 55128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (!obj->isFlexibleBox() || obj->style()->boxOrient() == VERTICAL); 55138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 55148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 55158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstatic RootInlineBox* getLineAtIndex(RenderBlock* block, int i, int& count) 55168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 55178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (block->style()->visibility() == VISIBLE) { 55188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (block->childrenInline()) { 55198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RootInlineBox* box = block->firstRootBox(); box; box = box->nextRootBox()) { 55208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (count++ == i) 55218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return box; 55228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 55258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderObject* obj = block->firstChild(); obj; obj = obj->nextSibling()) { 55268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (shouldCheckLines(obj)) { 55278f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RootInlineBox *box = getLineAtIndex(toRenderBlock(obj), i, count); 55288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (box) 55298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return box; 55308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 55358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 55368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5537635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectstatic int getHeightForLineCount(RenderBlock* block, int l, bool includeBottom, int& count) 55388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 55398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (block->style()->visibility() == VISIBLE) { 55408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (block->childrenInline()) { 55418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RootInlineBox* box = block->firstRootBox(); box; box = box->nextRootBox()) { 55428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (++count == l) 5543231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block return box->lineBottom() + (includeBottom ? (block->borderBottom() + block->paddingBottom()) : 0); 55448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 5547635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project RenderBox* normalFlowChildWithoutLines = 0; 5548635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (RenderBox* obj = block->firstChildBox(); obj; obj = obj->nextSiblingBox()) { 55498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (shouldCheckLines(obj)) { 55508f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int result = getHeightForLineCount(toRenderBlock(obj), l, false, count); 55518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (result != -1) 5552635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return result + obj->y() + (includeBottom ? (block->borderBottom() + block->paddingBottom()) : 0); 55538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5554635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project else if (!obj->isFloatingOrPositioned() && !obj->isRunIn()) 55558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project normalFlowChildWithoutLines = obj; 55568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (normalFlowChildWithoutLines && l == 0) 5558635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project return normalFlowChildWithoutLines->y() + normalFlowChildWithoutLines->height(); 55598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 55628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return -1; 55638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 55648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 55658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectRootInlineBox* RenderBlock::lineAtIndex(int i) 55668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 55678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int count = 0; 55688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return getLineAtIndex(this, i, count); 55698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 55708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 55718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectint RenderBlock::lineCount() 55728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 55738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int count = 0; 55748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->visibility() == VISIBLE) { 55758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) 55768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RootInlineBox* box = firstRootBox(); box; box = box->nextRootBox()) 55778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project count++; 55788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 55798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderObject* obj = firstChild(); obj; obj = obj->nextSibling()) 55808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (shouldCheckLines(obj)) 55818f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian count += toRenderBlock(obj)->lineCount(); 55828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 55838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return count; 55848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 55858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 55868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectint RenderBlock::heightForLineCount(int l) 55878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 55888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int count = 0; 55898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return getHeightForLineCount(this, l, true, count); 55908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 55918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 55928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::adjustForBorderFit(int x, int& left, int& right) const 55938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 55948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We don't deal with relative positioning. Our assumption is that you shrink to fit the lines without accounting 55958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // for either overflow or translations via relative positioning. 55968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->visibility() == VISIBLE) { 55978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline()) { 55988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RootInlineBox* box = firstRootBox(); box; box = box->nextRootBox()) { 55998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (box->firstChild()) 560081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch left = min(left, x + static_cast<int>(box->firstChild()->x())); 56018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (box->lastChild()) 560281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch right = max(right, x + static_cast<int>(ceilf(box->lastChild()->logicalRight()))); 56038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 5606635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project for (RenderBox* obj = firstChildBox(); obj; obj = obj->nextSiblingBox()) { 56078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!obj->isFloatingOrPositioned()) { 56088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (obj->isBlockFlow() && !obj->hasOverflowClip()) 56098f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian toRenderBlock(obj)->adjustForBorderFit(x + obj->x(), left, right); 56108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else if (obj->style()->visibility() == VISIBLE) { 56118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We are a replaced element or some kind of non-block-flow object. 5612635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project left = min(left, x + obj->x()); 5613635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project right = max(right, x + obj->x() + obj->width()); 56148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 56198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_floatingObjects) { 562081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSet& floatingObjectSet = m_floatingObjects->set(); 562181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObjectSetIterator end = floatingObjectSet.end(); 562281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch for (FloatingObjectSetIterator it = floatingObjectSet.begin(); it != end; ++it) { 562381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch FloatingObject* r = *it; 56248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Only examine the object if our m_shouldPaint flag is set. 56258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (r->m_shouldPaint) { 56262fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int floatLeft = xPositionForFloatIncludingMargin(r) - r->m_renderer->x(); 56278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int floatRight = floatLeft + r->m_renderer->width(); 56288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project left = min(left, floatLeft); 56298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project right = max(right, floatRight); 56308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 56358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 56368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::borderFitAdjust(int& x, int& w) const 56378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 56388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->borderFit() == BorderFitBorder) 56398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 56408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 56418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Walk any normal flow lines to snugly fit. 56428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int left = INT_MAX; 56438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int right = INT_MIN; 56448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int oldWidth = w; 56458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project adjustForBorderFit(0, left, right); 56468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (left != INT_MAX) { 56478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project left -= (borderLeft() + paddingLeft()); 56488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (left > 0) { 56498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project x += left; 56508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project w -= left; 56518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (right != INT_MIN) { 56548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project right += (borderRight() + paddingRight()); 56558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (right < oldWidth) 56568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project w -= (oldWidth - right); 56578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 56598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 56608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid RenderBlock::clearTruncation() 56618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 56628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (style()->visibility() == VISIBLE) { 56638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (childrenInline() && hasMarkupTruncation()) { 56648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project setHasMarkupTruncation(false); 56658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RootInlineBox* box = firstRootBox(); box; box = box->nextRootBox()) 56668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project box->clearTruncation(); 56678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 56698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (RenderObject* obj = firstChild(); obj; obj = obj->nextSibling()) 56708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (shouldCheckLines(obj)) 56718f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian toRenderBlock(obj)->clearTruncation(); 56728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 56748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5675bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsenvoid RenderBlock::setMaxMarginBeforeValues(int pos, int neg) 56768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 567768513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!m_rareData) { 5678a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (pos == RenderBlockRareData::positiveMarginBeforeDefault(this) && neg == RenderBlockRareData::negativeMarginBeforeDefault(this)) 56798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 568068513a70bcd92384395513322f1b801e7bf9c729Steve Block m_rareData = new RenderBlockRareData(this); 56818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5682a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_rareData->m_margins.setPositiveMarginBefore(pos); 5683a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_rareData->m_margins.setNegativeMarginBefore(neg); 56848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 56858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5686bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsenvoid RenderBlock::setMaxMarginAfterValues(int pos, int neg) 56878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 568868513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!m_rareData) { 5689a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (pos == RenderBlockRareData::positiveMarginAfterDefault(this) && neg == RenderBlockRareData::negativeMarginAfterDefault(this)) 569068513a70bcd92384395513322f1b801e7bf9c729Steve Block return; 569168513a70bcd92384395513322f1b801e7bf9c729Steve Block m_rareData = new RenderBlockRareData(this); 569268513a70bcd92384395513322f1b801e7bf9c729Steve Block } 5693a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_rareData->m_margins.setPositiveMarginAfter(pos); 5694a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch m_rareData->m_margins.setNegativeMarginAfter(neg); 569568513a70bcd92384395513322f1b801e7bf9c729Steve Block} 569668513a70bcd92384395513322f1b801e7bf9c729Steve Block 569768513a70bcd92384395513322f1b801e7bf9c729Steve Blockvoid RenderBlock::setPaginationStrut(int strut) 569868513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 569968513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!m_rareData) { 570068513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!strut) 57018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 570268513a70bcd92384395513322f1b801e7bf9c729Steve Block m_rareData = new RenderBlockRareData(this); 57038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 570468513a70bcd92384395513322f1b801e7bf9c729Steve Block m_rareData->m_paginationStrut = strut; 570568513a70bcd92384395513322f1b801e7bf9c729Steve Block} 570668513a70bcd92384395513322f1b801e7bf9c729Steve Block 5707f05b935882198ccf7d81675736e3aeb089c5113aBen Murdochvoid RenderBlock::setPageLogicalOffset(int logicalOffset) 570868513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 570968513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!m_rareData) { 5710f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!logicalOffset) 571168513a70bcd92384395513322f1b801e7bf9c729Steve Block return; 571268513a70bcd92384395513322f1b801e7bf9c729Steve Block m_rareData = new RenderBlockRareData(this); 571368513a70bcd92384395513322f1b801e7bf9c729Steve Block } 5714f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch m_rareData->m_pageLogicalOffset = logicalOffset; 57158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 57168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 57175f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianvoid RenderBlock::absoluteRects(Vector<IntRect>& rects, int tx, int ty) 57188f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 57198f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // For blocks inside inlines, we go ahead and include margins so that we run right up to the 57208f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // inline boxes above and below us (thus getting merged with them to form a single irregular 57218f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // shape). 5722e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (isAnonymousBlockContinuation()) { 5723bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // FIXME: This is wrong for block-flows that are horizontal. 5724bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // https://bugs.webkit.org/show_bug.cgi?id=46781 5725bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen rects.append(IntRect(tx, ty - collapsedMarginBefore(), 5726bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen width(), height() + collapsedMarginBefore() + collapsedMarginAfter())); 5727e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block continuation()->absoluteRects(rects, 5728e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block tx - x() + inlineElementContinuation()->containingBlock()->x(), 5729e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block ty - y() + inlineElementContinuation()->containingBlock()->y()); 57308f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } else 57318f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian rects.append(IntRect(tx, ty, width(), height())); 57328f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 57338f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57345f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianvoid RenderBlock::absoluteQuads(Vector<FloatQuad>& quads) 57358f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 57368f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // For blocks inside inlines, we go ahead and include margins so that we run right up to the 57378f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // inline boxes above and below us (thus getting merged with them to form a single irregular 57388f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // shape). 5739e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (isAnonymousBlockContinuation()) { 5740bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // FIXME: This is wrong for block-flows that are horizontal. 5741bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // https://bugs.webkit.org/show_bug.cgi?id=46781 5742bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen FloatRect localRect(0, -collapsedMarginBefore(), 5743bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen width(), height() + collapsedMarginBefore() + collapsedMarginAfter()); 57448f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian quads.append(localToAbsoluteQuad(localRect)); 5745e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block continuation()->absoluteQuads(quads); 57468f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } else 57478f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian quads.append(RenderBox::localToAbsoluteQuad(FloatRect(0, 0, width(), height()))); 57488f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 57498f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57508f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianIntRect RenderBlock::rectWithOutlineForRepaint(RenderBoxModelObject* repaintContainer, int outlineWidth) 57518f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 57528f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian IntRect r(RenderBox::rectWithOutlineForRepaint(repaintContainer, outlineWidth)); 5753e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (isAnonymousBlockContinuation()) 5754bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen r.inflateY(collapsedMarginBefore()); // FIXME: This is wrong for block-flows that are horizontal. 57558f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return r; 57568f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 57578f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianRenderObject* RenderBlock::hoverAncestor() const 57598f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 5760e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block return isAnonymousBlockContinuation() ? continuation() : RenderBox::hoverAncestor(); 57618f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 57628f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57638f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::updateDragState(bool dragOn) 57648f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 57658f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBox::updateDragState(dragOn); 5766e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (continuation()) 5767e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block continuation()->updateDragState(dragOn); 57688f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 57698f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57708f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianRenderStyle* RenderBlock::outlineStyleForRepaint() const 57718f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 5772e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block return isAnonymousBlockContinuation() ? continuation()->style() : style(); 57738f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 57748f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57758f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::childBecameNonInline(RenderObject*) 57768f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 57778f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian makeChildrenNonInline(); 57788f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (isAnonymousBlock() && parent() && parent()->isRenderBlock()) 57798f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian toRenderBlock(parent())->removeLeftoverAnonymousBlock(this); 57808f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // |this| may be dead here 57818f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 57828f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57838f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid RenderBlock::updateHitTestResult(HitTestResult& result, const IntPoint& point) 57848f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 57858f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (result.innerNode()) 57868f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return; 57878f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57888f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian Node* n = node(); 5789e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (isAnonymousBlockContinuation()) 57908f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // We are in the margins of block elements that are part of a continuation. In 5791e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block // this case we're actually still inside the enclosing element that was 57928f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // split. Go ahead and set our inner node accordingly. 5793e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block n = continuation()->node(); 57948f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 57958f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (n) { 57968f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian result.setInnerNode(n); 57978f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!result.innerNonSharedNode()) 57988f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian result.setInnerNonSharedNode(n); 57998f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian result.setLocalPoint(point); 58008f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 58018f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 58028f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58038f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianIntRect RenderBlock::localCaretRect(InlineBox* inlineBox, int caretOffset, int* extraWidthToEndOfLine) 58048f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 58058f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // Do the normal calculation in most cases. 58068f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (firstChild()) 58078f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return RenderBox::localCaretRect(inlineBox, caretOffset, extraWidthToEndOfLine); 58088f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58098f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // This is a special case: 58108f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // The element is not an inline element, and it's empty. So we have to 58118f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // calculate a fake position to indicate where objects are to be inserted. 58128f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58138f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // FIXME: This does not take into account either :first-line or :first-letter 58148f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // However, as soon as some content is entered, the line boxes will be 58158f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // constructed and this kludge is not called any more. So only the caret size 58168f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // of an empty :first-line'd block is wrong. I think we can live with that. 58178f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderStyle* currentStyle = firstLineStyle(); 5818a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int height = lineHeight(true, currentStyle->isHorizontalWritingMode() ? HorizontalLine : VerticalLine); 58198f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58208f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian enum CaretAlignment { alignLeft, alignRight, alignCenter }; 58218f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58228f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian CaretAlignment alignment = alignLeft; 58238f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58248f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian switch (currentStyle->textAlign()) { 58258f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case TAAUTO: 58268f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case JUSTIFY: 5827a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!currentStyle->isLeftToRightDirection()) 58288f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian alignment = alignRight; 58298f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian break; 58308f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case LEFT: 58318f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case WEBKIT_LEFT: 58328f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian break; 58338f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case CENTER: 58348f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case WEBKIT_CENTER: 58358f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian alignment = alignCenter; 58368f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian break; 58378f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case RIGHT: 58388f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case WEBKIT_RIGHT: 58398f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian alignment = alignRight; 58408f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian break; 58412bde8e466a4451c7319e3a072d118917957d6554Steve Block case TASTART: 58422bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!currentStyle->isLeftToRightDirection()) 58432bde8e466a4451c7319e3a072d118917957d6554Steve Block alignment = alignRight; 58442bde8e466a4451c7319e3a072d118917957d6554Steve Block break; 58452bde8e466a4451c7319e3a072d118917957d6554Steve Block case TAEND: 58462bde8e466a4451c7319e3a072d118917957d6554Steve Block if (currentStyle->isLeftToRightDirection()) 58472bde8e466a4451c7319e3a072d118917957d6554Steve Block alignment = alignRight; 58482bde8e466a4451c7319e3a072d118917957d6554Steve Block break; 58498f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 58508f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58518f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int x = borderLeft() + paddingLeft(); 58528f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int w = width(); 58538f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58548f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian switch (alignment) { 58558f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case alignLeft: 58568f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian break; 58578f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case alignCenter: 58588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian x = (x + w - (borderRight() + paddingRight())) / 2; 58598f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian break; 58608f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian case alignRight: 58615f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian x = w - (borderRight() + paddingRight()) - caretWidth; 58628f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian break; 58638f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 58648f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58658f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (extraWidthToEndOfLine) { 58668f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (isRenderBlock()) { 58678f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian *extraWidthToEndOfLine = w - (x + caretWidth); 58688f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } else { 58698f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // FIXME: This code looks wrong. 58708f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // myRight and containerRight are set up, but then clobbered. 58718f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // So *extraWidthToEndOfLine will always be 0 here. 58728f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58738f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int myRight = x + caretWidth; 58748f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // FIXME: why call localToAbsoluteForContent() twice here, too? 58758f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian FloatPoint absRightPoint = localToAbsolute(FloatPoint(myRight, 0)); 58768f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 5877bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int containerRight = containingBlock()->x() + containingBlockLogicalWidthForContent(); 58788f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian FloatPoint absContainerPoint = localToAbsolute(FloatPoint(containerRight, 0)); 58798f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58808f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian *extraWidthToEndOfLine = absContainerPoint.x() - absRightPoint.x(); 58818f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 58828f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 58838f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58848f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian int y = paddingTop() + borderTop(); 58858f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 58868f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return IntRect(x, y, caretWidth, height); 58878f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 58888f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 5889d0825bca7fe65beaee391d30da42e937db621564Steve Blockvoid RenderBlock::addFocusRingRects(Vector<IntRect>& rects, int tx, int ty) 58908f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 58918f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // For blocks inside inlines, we go ahead and include margins so that we run right up to the 58928f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // inline boxes above and below us (thus getting merged with them to form a single irregular 58938f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // shape). 5894e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (inlineElementContinuation()) { 58958f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // FIXME: This check really isn't accurate. 5896e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block bool nextInlineHasLineBox = inlineElementContinuation()->firstLineBox(); 58978f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // FIXME: This is wrong. The principal renderer may not be the continuation preceding this block. 5898bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // FIXME: This is wrong for block-flows that are horizontal. 5899bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // https://bugs.webkit.org/show_bug.cgi?id=46781 5900e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block bool prevInlineHasLineBox = toRenderInline(inlineElementContinuation()->node()->renderer())->firstLineBox(); 5901bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int topMargin = prevInlineHasLineBox ? collapsedMarginBefore() : 0; 5902bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen int bottomMargin = nextInlineHasLineBox ? collapsedMarginAfter() : 0; 5903d0825bca7fe65beaee391d30da42e937db621564Steve Block IntRect rect(tx, ty - topMargin, width(), height() + topMargin + bottomMargin); 5904d0825bca7fe65beaee391d30da42e937db621564Steve Block if (!rect.isEmpty()) 5905d0825bca7fe65beaee391d30da42e937db621564Steve Block rects.append(rect); 5906d0825bca7fe65beaee391d30da42e937db621564Steve Block } else if (width() && height()) 5907d0825bca7fe65beaee391d30da42e937db621564Steve Block rects.append(IntRect(tx, ty, width(), height())); 59088f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 59098f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!hasOverflowClip() && !hasControlClip()) { 5910231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block for (RootInlineBox* curr = firstRootBox(); curr; curr = curr->nextRootBox()) { 591181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch int top = max(curr->lineTop(), curr->logicalTop()); 591281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch int bottom = min(curr->lineBottom(), curr->logicalTop() + curr->logicalHeight()); 5913bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen IntRect rect(tx + curr->x(), ty + top, curr->logicalWidth(), bottom - top); 5914d0825bca7fe65beaee391d30da42e937db621564Steve Block if (!rect.isEmpty()) 5915d0825bca7fe65beaee391d30da42e937db621564Steve Block rects.append(rect); 5916231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 59178f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 59188f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian for (RenderObject* curr = firstChild(); curr; curr = curr->nextSibling()) { 59198f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (!curr->isText() && !curr->isListMarker() && curr->isBox()) { 59208f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian RenderBox* box = toRenderBox(curr); 59218f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian FloatPoint pos; 59228f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // FIXME: This doesn't work correctly with transforms. 59238f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (box->layer()) 59248f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian pos = curr->localToAbsolute(); 59258f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian else 59268f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian pos = FloatPoint(tx + box->x(), ty + box->y()); 5927d0825bca7fe65beaee391d30da42e937db621564Steve Block box->addFocusRingRects(rects, pos.x(), pos.y()); 59288f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 59298f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 59308f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 59318f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 5932e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block if (inlineElementContinuation()) 5933e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block inlineElementContinuation()->addFocusRingRects(rects, 5934e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block tx - x() + inlineElementContinuation()->containingBlock()->x(), 5935e78cbe89e6f337f2f1fe40315be88f742b547151Steve Block ty - y() + inlineElementContinuation()->containingBlock()->y()); 59368f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 59378f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 5938231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve BlockRenderBlock* RenderBlock::createAnonymousBlock(bool isFlexibleBox) const 59398f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 59402bde8e466a4451c7319e3a072d118917957d6554Steve Block RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyle(style()); 59418f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 5942231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block RenderBlock* newBox = 0; 5943231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (isFlexibleBox) { 5944231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block newStyle->setDisplay(BOX); 5945231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block newBox = new (renderArena()) RenderFlexibleBox(document() /* anonymous box */); 5946231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } else { 5947231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block newStyle->setDisplay(BLOCK); 5948231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block newBox = new (renderArena()) RenderBlock(document() /* anonymous box */); 5949231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 5950231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 59518f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian newBox->setStyle(newStyle.release()); 59528f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return newBox; 59538f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 59548f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 59555af96e2c7b73ebc627c6894727826a7576d31758Leon ClarkeRenderBlock* RenderBlock::createAnonymousBlockWithSameTypeAs(RenderBlock* otherAnonymousBlock) const 59565af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 59575af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (otherAnonymousBlock->isAnonymousColumnsBlock()) 59585af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return createAnonymousColumnsBlock(); 59595af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (otherAnonymousBlock->isAnonymousColumnSpanBlock()) 59605af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return createAnonymousColumnSpanBlock(); 59615af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return createAnonymousBlock(otherAnonymousBlock->style()->display() == BOX); 59625af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 59635af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 59645af96e2c7b73ebc627c6894727826a7576d31758Leon ClarkeRenderBlock* RenderBlock::createAnonymousColumnsBlock() const 59655af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 59662bde8e466a4451c7319e3a072d118917957d6554Steve Block RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyle(style()); 59675af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newStyle->inheritColumnPropertiesFrom(style()); 59685af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newStyle->setDisplay(BLOCK); 59695af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 59705af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* newBox = new (renderArena()) RenderBlock(document() /* anonymous box */); 59715af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newBox->setStyle(newStyle.release()); 59725af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return newBox; 59735af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 59745af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 59755af96e2c7b73ebc627c6894727826a7576d31758Leon ClarkeRenderBlock* RenderBlock::createAnonymousColumnSpanBlock() const 59765af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke{ 59772bde8e466a4451c7319e3a072d118917957d6554Steve Block RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyle(style()); 59785af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newStyle->setColumnSpan(true); 59795af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newStyle->setDisplay(BLOCK); 59805af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 59815af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke RenderBlock* newBox = new (renderArena()) RenderBlock(document() /* anonymous box */); 59825af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke newBox->setStyle(newStyle.release()); 59835af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return newBox; 59845af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke} 59855af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke 59862fc2651226baac27029e38c9d6ef883fa32084dbSteve Blockint RenderBlock::nextPageLogicalTop(int logicalOffset) const 598768513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 598868513a70bcd92384395513322f1b801e7bf9c729Steve Block LayoutState* layoutState = view()->layoutState(); 5989f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!layoutState->m_pageLogicalHeight) 59902fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return logicalOffset; 599168513a70bcd92384395513322f1b801e7bf9c729Steve Block 59922fc2651226baac27029e38c9d6ef883fa32084dbSteve Block // The logicalOffset is in our coordinate space. We can add in our pushed offset. 5993f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int pageLogicalHeight = layoutState->m_pageLogicalHeight; 59942fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntSize delta = layoutState->m_layoutOffset - layoutState->m_pageOffset; 59952bde8e466a4451c7319e3a072d118917957d6554Steve Block int offset = isHorizontalWritingMode() ? delta.height() : delta.width(); 59962fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int remainingLogicalHeight = (pageLogicalHeight - (offset + logicalOffset) % pageLogicalHeight) % pageLogicalHeight; 59972fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return logicalOffset + remainingLogicalHeight; 599868513a70bcd92384395513322f1b801e7bf9c729Steve Block} 599968513a70bcd92384395513322f1b801e7bf9c729Steve Block 600068513a70bcd92384395513322f1b801e7bf9c729Steve Blockstatic bool inNormalFlow(RenderBox* child) 600168513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 600268513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderBlock* curr = child->containingBlock(); 600368513a70bcd92384395513322f1b801e7bf9c729Steve Block RenderBlock* initialBlock = child->view(); 600468513a70bcd92384395513322f1b801e7bf9c729Steve Block while (curr && curr != initialBlock) { 600568513a70bcd92384395513322f1b801e7bf9c729Steve Block if (curr->hasColumns()) 600668513a70bcd92384395513322f1b801e7bf9c729Steve Block return true; 600768513a70bcd92384395513322f1b801e7bf9c729Steve Block if (curr->isFloatingOrPositioned()) 600868513a70bcd92384395513322f1b801e7bf9c729Steve Block return false; 600968513a70bcd92384395513322f1b801e7bf9c729Steve Block curr = curr->containingBlock(); 601068513a70bcd92384395513322f1b801e7bf9c729Steve Block } 601168513a70bcd92384395513322f1b801e7bf9c729Steve Block return true; 601268513a70bcd92384395513322f1b801e7bf9c729Steve Block} 601368513a70bcd92384395513322f1b801e7bf9c729Steve Block 60142fc2651226baac27029e38c9d6ef883fa32084dbSteve Blockint RenderBlock::applyBeforeBreak(RenderBox* child, int logicalOffset) 601568513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 601668513a70bcd92384395513322f1b801e7bf9c729Steve Block // FIXME: Add page break checking here when we support printing. 601768513a70bcd92384395513322f1b801e7bf9c729Steve Block bool checkColumnBreaks = view()->layoutState()->isPaginatingColumns(); 6018f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch bool checkPageBreaks = !checkColumnBreaks && view()->layoutState()->m_pageLogicalHeight; // FIXME: Once columns can print we have to check this. 601968513a70bcd92384395513322f1b801e7bf9c729Steve Block bool checkBeforeAlways = (checkColumnBreaks && child->style()->columnBreakBefore() == PBALWAYS) || (checkPageBreaks && child->style()->pageBreakBefore() == PBALWAYS); 602068513a70bcd92384395513322f1b801e7bf9c729Steve Block if (checkBeforeAlways && inNormalFlow(child)) { 602168513a70bcd92384395513322f1b801e7bf9c729Steve Block if (checkColumnBreaks) 60222fc2651226baac27029e38c9d6ef883fa32084dbSteve Block view()->layoutState()->addForcedColumnBreak(logicalOffset); 60232fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return nextPageLogicalTop(logicalOffset); 602468513a70bcd92384395513322f1b801e7bf9c729Steve Block } 60252fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return logicalOffset; 602668513a70bcd92384395513322f1b801e7bf9c729Steve Block} 602768513a70bcd92384395513322f1b801e7bf9c729Steve Block 60282fc2651226baac27029e38c9d6ef883fa32084dbSteve Blockint RenderBlock::applyAfterBreak(RenderBox* child, int logicalOffset, MarginInfo& marginInfo) 602968513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 603068513a70bcd92384395513322f1b801e7bf9c729Steve Block // FIXME: Add page break checking here when we support printing. 603168513a70bcd92384395513322f1b801e7bf9c729Steve Block bool checkColumnBreaks = view()->layoutState()->isPaginatingColumns(); 6032f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch bool checkPageBreaks = !checkColumnBreaks && view()->layoutState()->m_pageLogicalHeight; // FIXME: Once columns can print we have to check this. 603368513a70bcd92384395513322f1b801e7bf9c729Steve Block bool checkAfterAlways = (checkColumnBreaks && child->style()->columnBreakAfter() == PBALWAYS) || (checkPageBreaks && child->style()->pageBreakAfter() == PBALWAYS); 603468513a70bcd92384395513322f1b801e7bf9c729Steve Block if (checkAfterAlways && inNormalFlow(child)) { 6035bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen marginInfo.setMarginAfterQuirk(true); // Cause margins to be discarded for any following content. 603668513a70bcd92384395513322f1b801e7bf9c729Steve Block if (checkColumnBreaks) 60372fc2651226baac27029e38c9d6ef883fa32084dbSteve Block view()->layoutState()->addForcedColumnBreak(logicalOffset); 60382fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return nextPageLogicalTop(logicalOffset); 603968513a70bcd92384395513322f1b801e7bf9c729Steve Block } 60402fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return logicalOffset; 604168513a70bcd92384395513322f1b801e7bf9c729Steve Block} 604268513a70bcd92384395513322f1b801e7bf9c729Steve Block 60432fc2651226baac27029e38c9d6ef883fa32084dbSteve Blockint RenderBlock::adjustForUnsplittableChild(RenderBox* child, int logicalOffset, bool includeMargins) 604468513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 604568513a70bcd92384395513322f1b801e7bf9c729Steve Block bool isUnsplittable = child->isReplaced() || child->scrollsOverflow(); 604668513a70bcd92384395513322f1b801e7bf9c729Steve Block if (!isUnsplittable) 60472fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return logicalOffset; 60482fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int childLogicalHeight = logicalHeightForChild(child) + (includeMargins ? marginBeforeForChild(child) + marginAfterForChild(child) : 0); 604968513a70bcd92384395513322f1b801e7bf9c729Steve Block LayoutState* layoutState = view()->layoutState(); 605068513a70bcd92384395513322f1b801e7bf9c729Steve Block if (layoutState->m_columnInfo) 60512fc2651226baac27029e38c9d6ef883fa32084dbSteve Block layoutState->m_columnInfo->updateMinimumColumnHeight(childLogicalHeight); 6052f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int pageLogicalHeight = layoutState->m_pageLogicalHeight; 60532fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (!pageLogicalHeight || childLogicalHeight > pageLogicalHeight) 60542fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return logicalOffset; 60552fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntSize delta = layoutState->m_layoutOffset - layoutState->m_pageOffset; 60562bde8e466a4451c7319e3a072d118917957d6554Steve Block int offset = isHorizontalWritingMode() ? delta.height() : delta.width(); 60572fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int remainingLogicalHeight = (pageLogicalHeight - (offset + logicalOffset) % pageLogicalHeight) % pageLogicalHeight; 60582fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (remainingLogicalHeight < childLogicalHeight) 60592fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return logicalOffset + remainingLogicalHeight; 60602fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return logicalOffset; 606168513a70bcd92384395513322f1b801e7bf9c729Steve Block} 606268513a70bcd92384395513322f1b801e7bf9c729Steve Block 606368513a70bcd92384395513322f1b801e7bf9c729Steve Blockvoid RenderBlock::adjustLinePositionForPagination(RootInlineBox* lineBox, int& delta) 606468513a70bcd92384395513322f1b801e7bf9c729Steve Block{ 606568513a70bcd92384395513322f1b801e7bf9c729Steve Block // FIXME: For now we paginate using line overflow. This ensures that lines don't overlap at all when we 606668513a70bcd92384395513322f1b801e7bf9c729Steve Block // put a strut between them for pagination purposes. However, this really isn't the desired rendering, since 606768513a70bcd92384395513322f1b801e7bf9c729Steve 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 606868513a70bcd92384395513322f1b801e7bf9c729Steve Block // of the first column. 606968513a70bcd92384395513322f1b801e7bf9c729Steve Block // 607068513a70bcd92384395513322f1b801e7bf9c729Steve Block // The rendering we would like to see is one where the lineTop is at the top of the column, and any line overflow 607168513a70bcd92384395513322f1b801e7bf9c729Steve Block // simply spills out above the top of the column. This effect would match what happens at the top of the first column. 607268513a70bcd92384395513322f1b801e7bf9c729Steve Block // We can't achieve this rendering, however, until we stop columns from clipping to the column bounds (thus allowing 607368513a70bcd92384395513322f1b801e7bf9c729Steve Block // for overflow to occur), and then cache visible overflow for each column rect. 607468513a70bcd92384395513322f1b801e7bf9c729Steve Block // 607568513a70bcd92384395513322f1b801e7bf9c729Steve Block // Furthermore, the paint we have to do when a column has overflow has to be special. We need to exclude 607668513a70bcd92384395513322f1b801e7bf9c729Steve Block // content that paints in a previous column (and content that paints in the following column). 607768513a70bcd92384395513322f1b801e7bf9c729Steve Block // 607868513a70bcd92384395513322f1b801e7bf9c729Steve Block // FIXME: Another problem with simply moving lines is that the available line width may change (because of floats). 607968513a70bcd92384395513322f1b801e7bf9c729Steve 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 608068513a70bcd92384395513322f1b801e7bf9c729Steve Block // line and all following lines. 608168513a70bcd92384395513322f1b801e7bf9c729Steve Block LayoutState* layoutState = view()->layoutState(); 6082f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch int pageLogicalHeight = layoutState->m_pageLogicalHeight; 60832daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch IntRect logicalVisualOverflow = lineBox->logicalVisualOverflowRect(lineBox->lineTop(), lineBox->lineBottom()); 60842daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch int logicalOffset = logicalVisualOverflow.y(); 60852daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch int lineHeight = logicalVisualOverflow.maxY() - logicalOffset; 608668513a70bcd92384395513322f1b801e7bf9c729Steve Block if (layoutState->m_columnInfo) 608768513a70bcd92384395513322f1b801e7bf9c729Steve Block layoutState->m_columnInfo->updateMinimumColumnHeight(lineHeight); 60882fc2651226baac27029e38c9d6ef883fa32084dbSteve Block logicalOffset += delta; 608968513a70bcd92384395513322f1b801e7bf9c729Steve Block lineBox->setPaginationStrut(0); 6090f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch if (!pageLogicalHeight || lineHeight > pageLogicalHeight) 609168513a70bcd92384395513322f1b801e7bf9c729Steve Block return; 60922fc2651226baac27029e38c9d6ef883fa32084dbSteve Block IntSize offsetDelta = layoutState->m_layoutOffset - layoutState->m_pageOffset; 60932bde8e466a4451c7319e3a072d118917957d6554Steve Block int offset = isHorizontalWritingMode() ? offsetDelta.height() : offsetDelta.width(); 60942fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int remainingLogicalHeight = pageLogicalHeight - (offset + logicalOffset) % pageLogicalHeight; 60952fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (remainingLogicalHeight < lineHeight) { 60962fc2651226baac27029e38c9d6ef883fa32084dbSteve Block int totalLogicalHeight = lineHeight + max(0, logicalOffset); 60972fc2651226baac27029e38c9d6ef883fa32084dbSteve Block if (lineBox == firstRootBox() && totalLogicalHeight < pageLogicalHeight && !isPositioned() && !isTableCell()) 60982fc2651226baac27029e38c9d6ef883fa32084dbSteve Block setPaginationStrut(remainingLogicalHeight + max(0, logicalOffset)); 609968513a70bcd92384395513322f1b801e7bf9c729Steve Block else { 61002fc2651226baac27029e38c9d6ef883fa32084dbSteve Block delta += remainingLogicalHeight; 61012fc2651226baac27029e38c9d6ef883fa32084dbSteve Block lineBox->setPaginationStrut(remainingLogicalHeight); 610268513a70bcd92384395513322f1b801e7bf9c729Steve Block } 610368513a70bcd92384395513322f1b801e7bf9c729Steve Block } 610468513a70bcd92384395513322f1b801e7bf9c729Steve Block} 6105a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6106a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::collapsedMarginBeforeForChild(RenderBox* child) const 6107a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 6108a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // If the child has the same directionality as we do, then we can just return its 6109a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // collapsed margin. 6110a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!child->isWritingModeRoot()) 6111a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->collapsedMarginBefore(); 6112a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6113a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The child has a different directionality. If the child is parallel, then it's just 6114a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // flipped relative to us. We can use the collapsed margin for the opposite edge. 61152bde8e466a4451c7319e3a072d118917957d6554Steve Block if (child->isHorizontalWritingMode() == isHorizontalWritingMode()) 6116a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->collapsedMarginAfter(); 6117a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6118a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The child is perpendicular to us, which means its margins don't collapse but are on the 6119a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // "logical left/right" sides of the child box. We can just return the raw margin in this case. 6120a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return marginBeforeForChild(child); 6121a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6122a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6123a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::collapsedMarginAfterForChild(RenderBox* child) const 6124a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 6125a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // If the child has the same directionality as we do, then we can just return its 6126a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // collapsed margin. 6127a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!child->isWritingModeRoot()) 6128a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->collapsedMarginAfter(); 6129a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6130a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The child has a different directionality. If the child is parallel, then it's just 6131a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // flipped relative to us. We can use the collapsed margin for the opposite edge. 61322bde8e466a4451c7319e3a072d118917957d6554Steve Block if (child->isHorizontalWritingMode() == isHorizontalWritingMode()) 6133a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->collapsedMarginBefore(); 6134a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6135a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The child is perpendicular to us, which means its margins don't collapse but are on the 6136a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // "logical left/right" side of the child box. We can just return the raw margin in this case. 6137a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return marginAfterForChild(child); 6138a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6139a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6140a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::marginBeforeForChild(RenderBoxModelObject* child) const 6141a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 6142a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch switch (style()->writingMode()) { 6143a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case TopToBottomWritingMode: 6144a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginTop(); 6145a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case BottomToTopWritingMode: 6146a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginBottom(); 6147a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case LeftToRightWritingMode: 6148a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginLeft(); 6149a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case RightToLeftWritingMode: 6150a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginRight(); 6151a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6152a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch ASSERT_NOT_REACHED(); 6153a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginTop(); 6154a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6155a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6156a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::marginAfterForChild(RenderBoxModelObject* child) const 6157a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 6158a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch switch (style()->writingMode()) { 6159a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case TopToBottomWritingMode: 6160a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginBottom(); 6161a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case BottomToTopWritingMode: 6162a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginTop(); 6163a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case LeftToRightWritingMode: 6164a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginRight(); 6165a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case RightToLeftWritingMode: 6166a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginLeft(); 6167a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6168a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch ASSERT_NOT_REACHED(); 6169a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return child->marginBottom(); 6170a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6171a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6172a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::marginStartForChild(RenderBoxModelObject* child) const 6173a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 61742bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 6175a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return style()->isLeftToRightDirection() ? child->marginLeft() : child->marginRight(); 6176a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return style()->isLeftToRightDirection() ? child->marginTop() : child->marginBottom(); 6177a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6178a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6179a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochint RenderBlock::marginEndForChild(RenderBoxModelObject* child) const 6180a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 61812bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) 6182a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return style()->isLeftToRightDirection() ? child->marginRight() : child->marginLeft(); 6183a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return style()->isLeftToRightDirection() ? child->marginBottom() : child->marginTop(); 6184a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6185a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6186a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::setMarginStartForChild(RenderBox* child, int margin) 6187a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 61882bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) { 6189a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (style()->isLeftToRightDirection()) 6190a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginLeft(margin); 6191a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch else 6192a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginRight(margin); 6193a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else { 6194a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (style()->isLeftToRightDirection()) 6195a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginTop(margin); 6196a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch else 6197a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginBottom(margin); 6198a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6199a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6200a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6201a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::setMarginEndForChild(RenderBox* child, int margin) 6202a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 62032bde8e466a4451c7319e3a072d118917957d6554Steve Block if (isHorizontalWritingMode()) { 6204a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (style()->isLeftToRightDirection()) 6205a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginRight(margin); 6206a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch else 6207a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginLeft(margin); 6208a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else { 6209a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (style()->isLeftToRightDirection()) 6210a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginBottom(margin); 6211a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch else 6212a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginTop(margin); 6213a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6214a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6215a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6216a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::setMarginBeforeForChild(RenderBox* child, int margin) 6217a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 6218a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch switch (style()->writingMode()) { 6219a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case TopToBottomWritingMode: 6220a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginTop(margin); 6221a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 6222a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case BottomToTopWritingMode: 6223a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginBottom(margin); 6224a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 6225a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case LeftToRightWritingMode: 6226a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginLeft(margin); 6227a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 6228a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case RightToLeftWritingMode: 6229a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginRight(margin); 6230a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 6231a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6232a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6233a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6234a94275402997c11dd2e778633dacf4b7e630a35dBen Murdochvoid RenderBlock::setMarginAfterForChild(RenderBox* child, int margin) 6235a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 6236a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch switch (style()->writingMode()) { 6237a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case TopToBottomWritingMode: 6238a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginBottom(margin); 6239a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 6240a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case BottomToTopWritingMode: 6241a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginTop(margin); 6242a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 6243a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case LeftToRightWritingMode: 6244a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginRight(margin); 6245a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 6246a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch case RightToLeftWritingMode: 6247a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch child->setMarginLeft(margin); 6248a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch break; 6249a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6250a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6251a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6252a94275402997c11dd2e778633dacf4b7e630a35dBen MurdochRenderBlock::MarginValues RenderBlock::marginValuesForChild(RenderBox* child) 6253a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch{ 6254a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int childBeforePositive = 0; 6255a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int childBeforeNegative = 0; 6256a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int childAfterPositive = 0; 6257a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int childAfterNegative = 0; 6258a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6259a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int beforeMargin = 0; 6260a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch int afterMargin = 0; 6261a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6262a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch RenderBlock* childRenderBlock = child->isRenderBlock() ? toRenderBlock(child) : 0; 6263a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6264a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // If the child has the same directionality as we do, then we can just return its 6265a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // margins in the same direction. 6266a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (!child->isWritingModeRoot()) { 6267a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (childRenderBlock) { 6268a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBeforePositive = childRenderBlock->maxPositiveMarginBefore(); 6269a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBeforeNegative = childRenderBlock->maxNegativeMarginBefore(); 6270a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childAfterPositive = childRenderBlock->maxPositiveMarginAfter(); 6271a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childAfterNegative = childRenderBlock->maxNegativeMarginAfter(); 6272a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else { 6273a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch beforeMargin = child->marginBefore(); 6274a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch afterMargin = child->marginAfter(); 6275a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 62762bde8e466a4451c7319e3a072d118917957d6554Steve Block } else if (child->isHorizontalWritingMode() == isHorizontalWritingMode()) { 6277a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The child has a different directionality. If the child is parallel, then it's just 6278a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // flipped relative to us. We can use the margins for the opposite edges. 6279a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (childRenderBlock) { 6280a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBeforePositive = childRenderBlock->maxPositiveMarginAfter(); 6281a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBeforeNegative = childRenderBlock->maxNegativeMarginAfter(); 6282a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childAfterPositive = childRenderBlock->maxPositiveMarginBefore(); 6283a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childAfterNegative = childRenderBlock->maxNegativeMarginBefore(); 6284a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else { 6285a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch beforeMargin = child->marginAfter(); 6286a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch afterMargin = child->marginBefore(); 6287a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6288a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } else { 6289a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // The child is perpendicular to us, which means its margins don't collapse but are on the 6290a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // "logical left/right" sides of the child box. We can just return the raw margin in this case. 6291a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch beforeMargin = marginBeforeForChild(child); 6292a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch afterMargin = marginAfterForChild(child); 6293a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6294a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6295a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch // Resolve uncollapsing margins into their positive/negative buckets. 6296a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (beforeMargin) { 6297a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (beforeMargin > 0) 6298a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBeforePositive = beforeMargin; 6299a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch else 6300a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childBeforeNegative = -beforeMargin; 6301a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6302a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (afterMargin) { 6303a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch if (afterMargin > 0) 6304a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childAfterPositive = afterMargin; 6305a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch else 6306a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch childAfterNegative = -afterMargin; 6307a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch } 6308a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 6309a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch return MarginValues(childBeforePositive, childBeforeNegative, childAfterPositive, childAfterNegative); 6310a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch} 6311a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch 63128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectconst char* RenderBlock::renderName() const 63138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 63148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isBody()) 63158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return "RenderBody"; // FIXME: Temporary hack until we know that the regression tests pass. 63168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 63178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isFloating()) 63188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return "RenderBlock (floating)"; 63198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isPositioned()) 63208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return "RenderBlock (positioned)"; 63215af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (isAnonymousColumnsBlock()) 63225af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return "RenderBlock (anonymous multi-column)"; 63235af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (isAnonymousColumnSpanBlock()) 63245af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke return "RenderBlock (anonymous multi-column span)"; 63258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isAnonymousBlock()) 63268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return "RenderBlock (anonymous)"; 63278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else if (isAnonymous()) 63288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return "RenderBlock (generated)"; 63298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isRelPositioned()) 63308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return "RenderBlock (relative positioned)"; 63318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isRunIn()) 63328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return "RenderBlock (run-in)"; 63338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return "RenderBlock"; 63348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 63358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 633681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochinline void RenderBlock::FloatingObjects::clear() 633781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch{ 633881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_set.clear(); 633981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_leftObjectsCount = 0; 634081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_rightObjectsCount = 0; 634181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch} 634281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 634381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochinline void RenderBlock::FloatingObjects::increaseObjectsCount(FloatingObject::Type type) 634481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch{ 634581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (type == FloatingObject::FloatLeft) 634681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_leftObjectsCount++; 634781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch else 634881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_rightObjectsCount++; 634981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch} 635081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 635181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdochinline void RenderBlock::FloatingObjects::decreaseObjectsCount(FloatingObject::Type type) 635281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch{ 635381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (type == FloatingObject::FloatLeft) 635481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_leftObjectsCount--; 635581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch else 635681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch m_rightObjectsCount--; 635781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch} 635881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch 63598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} // namespace WebCore 6360