15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2003, 2006, 2008 Apple Inc. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * This library is free software; you can redistribute it and/or 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modify it under the terms of the GNU Library General Public 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * License as published by the Free Software Foundation; either 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * version 2 of the License, or (at your option) any later version. 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * This library is distributed in the hope that it will be useful, 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * but WITHOUT ANY WARRANTY; without even the implied warranty of 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Library General Public License for more details. 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * You should have received a copy of the GNU Library General Public License 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * along with this library; see the file COPYING.LIB. If not, write to 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Boston, MA 02110-1301, USA. 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "config.h" 2153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/rendering/RootInlineBox.h" 2253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 2353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/dom/Document.h" 24197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch#include "core/dom/StyleEngine.h" 2553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/rendering/EllipsisBox.h" 2653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/rendering/HitTestResult.h" 2753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/rendering/InlineTextBox.h" 2853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/rendering/PaintInfo.h" 2951b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles)#include "core/rendering/RenderBlockFlow.h" 3053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/rendering/RenderFlowThread.h" 3151b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles)#include "core/rendering/RenderInline.h" 3253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/rendering/RenderView.h" 3353e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/rendering/VerticalPositionCache.h" 341e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles)#include "platform/text/BidiResolver.h" 3502772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch#include "wtf/unicode/Unicode.h" 365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 37c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)namespace blink { 3802772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 3993ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)struct SameSizeAsRootInlineBox : public InlineFlowBox { 40197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch unsigned unsignedVariable; 4193ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) void* pointers[4]; 42197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch LayoutUnit layoutVariables[5]; 4393ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)}; 4493ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) 4593ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)COMPILE_ASSERT(sizeof(RootInlineBox) == sizeof(SameSizeAsRootInlineBox), RootInlineBox_should_stay_small); 4693ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)typedef WTF::HashMap<const RootInlineBox*, EllipsisBox*> EllipsisBoxMap; 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)static EllipsisBoxMap* gEllipsisBoxMap = 0; 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 50d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles)RootInlineBox::RootInlineBox(RenderBlockFlow& block) 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) : InlineFlowBox(block) 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_lineBreakPos(0) 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_lineBreakObj(0) 545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_lineTop(0) 555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_lineBottom(0) 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_lineTopWithLeading(0) 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) , m_lineBottomWithLeading(0) 58197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch , m_selectionBottom(0) 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 60d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) setIsHorizontal(block.isHorizontalWritingMode()); 615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 64f5e4ad553afbc08dd2e729bb77e937a9a94d5827Torne (Richard Coles)void RootInlineBox::destroy() 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 66f5e4ad553afbc08dd2e729bb77e937a9a94d5827Torne (Richard Coles) detachEllipsisBox(); 67f5e4ad553afbc08dd2e729bb77e937a9a94d5827Torne (Richard Coles) InlineFlowBox::destroy(); 685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 70f5e4ad553afbc08dd2e729bb77e937a9a94d5827Torne (Richard Coles)void RootInlineBox::detachEllipsisBox() 715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (hasEllipsisBox()) { 735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) EllipsisBox* box = gEllipsisBoxMap->take(this); 745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) box->setParent(0); 75f5e4ad553afbc08dd2e729bb77e937a9a94d5827Torne (Richard Coles) box->destroy(); 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) setHasEllipsisBox(false); 775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)RenderLineBoxList* RootInlineBox::rendererLineBoxes() const 815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 82d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) return block().lineBoxes(); 835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RootInlineBox::clearTruncation() 865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (hasEllipsisBox()) { 88f5e4ad553afbc08dd2e729bb77e937a9a94d5827Torne (Richard Coles) detachEllipsisBox(); 895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) InlineFlowBox::clearTruncation(); 905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)int RootInlineBox::baselinePosition(FontBaseline baselineType) const 945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 955c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return boxModelObject()->baselinePosition(baselineType, isFirstLineStyle(), isHorizontal() ? HorizontalLine : VerticalLine, PositionOfInteriorLineBoxes); 965c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)LayoutUnit RootInlineBox::lineHeight() const 995c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return boxModelObject()->lineHeight(isFirstLineStyle(), isHorizontal() ? HorizontalLine : VerticalLine, PositionOfInteriorLineBoxes); 1015c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1025c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1035c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)bool RootInlineBox::lineCanAccommodateEllipsis(bool ltr, int blockEdge, int lineBoxEdge, int ellipsisWidth) 1045c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1055c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // First sanity-check the unoverflowed width of the whole line to see if there is sufficient room. 1065c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) int delta = ltr ? lineBoxEdge - blockEdge : blockEdge - lineBoxEdge; 1075c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (logicalWidth() - delta < ellipsisWidth) 1085c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return false; 1095c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Next iterate over all the line boxes on the line. If we find a replaced element that intersects 1115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // then we refuse to accommodate the ellipsis. Otherwise we're ok. 1125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return InlineFlowBox::canAccommodateEllipsis(ltr, blockEdge, ellipsisWidth); 1135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)float RootInlineBox::placeEllipsis(const AtomicString& ellipsisStr, bool ltr, float blockLeftEdge, float blockRightEdge, float ellipsisWidth, 1165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) InlineBox* markupBox) 1175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Create an ellipsis box. 119f5e4ad553afbc08dd2e729bb77e937a9a94d5827Torne (Richard Coles) EllipsisBox* ellipsisBox = new EllipsisBox(renderer(), ellipsisStr, this, 120f5e4ad553afbc08dd2e729bb77e937a9a94d5827Torne (Richard Coles) ellipsisWidth - (markupBox ? markupBox->logicalWidth() : 0), logicalHeight(), 12109380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) x(), y(), !prevRootBox(), isHorizontal(), markupBox); 12202772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 1235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!gEllipsisBoxMap) 1245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) gEllipsisBoxMap = new EllipsisBoxMap(); 1255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) gEllipsisBoxMap->add(this, ellipsisBox); 1265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) setHasEllipsisBox(true); 1275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // FIXME: Do we need an RTL version of this? 12909380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) if (ltr && (logicalLeft() + logicalWidth() + ellipsisWidth) <= blockRightEdge) { 13009380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) ellipsisBox->setLogicalLeft(logicalLeft() + logicalWidth()); 1315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return logicalWidth() + ellipsisWidth; 1325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 1335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Now attempt to find the nearest glyph horizontally and place just to the right (or left in RTL) 1355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // of that glyph. Mark all of the objects that intersect the ellipsis box as not painting (as being 1365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // truncated). 1375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool foundBox = false; 1385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) float truncatedWidth = 0; 1395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) float position = placeEllipsisBox(ltr, blockLeftEdge, blockRightEdge, ellipsisWidth, truncatedWidth, foundBox); 14009380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) ellipsisBox->setLogicalLeft(position); 1415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return truncatedWidth; 1425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)float RootInlineBox::placeEllipsisBox(bool ltr, float blockLeftEdge, float blockRightEdge, float ellipsisWidth, float &truncatedWidth, bool& foundBox) 1455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) float result = InlineFlowBox::placeEllipsisBox(ltr, blockLeftEdge, blockRightEdge, ellipsisWidth, truncatedWidth, foundBox); 1475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (result == -1) { 1485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) result = ltr ? blockRightEdge - ellipsisWidth : blockLeftEdge; 1495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) truncatedWidth = blockRightEdge - blockLeftEdge; 1505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 1515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return result; 1525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RootInlineBox::paintEllipsisBox(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom) const 1555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 156d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (hasEllipsisBox() && paintInfo.shouldPaintWithinRoot(&renderer()) && renderer().style()->visibility() == VISIBLE 1575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) && paintInfo.phase == PaintPhaseForeground) 1585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ellipsisBox()->paint(paintInfo, paintOffset, lineTop, lineBottom); 1595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RootInlineBox::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom) 1625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) InlineFlowBox::paint(paintInfo, paintOffset, lineTop, lineBottom); 1645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) paintEllipsisBox(paintInfo, paintOffset, lineTop, lineBottom); 1655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)bool RootInlineBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit lineTop, LayoutUnit lineBottom) 1685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 16953e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) if (hasEllipsisBox() && visibleToHitTestRequest(request)) { 1705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (ellipsisBox()->nodeAtPoint(request, result, locationInContainer, accumulatedOffset, lineTop, lineBottom)) { 171d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) renderer().updateHitTestResult(result, locationInContainer.point() - toLayoutSize(accumulatedOffset)); 1725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return true; 1735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 1745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 1755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return InlineFlowBox::nodeAtPoint(request, result, locationInContainer, accumulatedOffset, lineTop, lineBottom); 1765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RootInlineBox::adjustPosition(float dx, float dy) 1795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) InlineFlowBox::adjustPosition(dx, dy); 1815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit blockDirectionDelta = isHorizontal() ? dy : dx; // The block direction delta is a LayoutUnit. 1825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_lineTop += blockDirectionDelta; 1835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_lineBottom += blockDirectionDelta; 1845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_lineTopWithLeading += blockDirectionDelta; 1855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_lineBottomWithLeading += blockDirectionDelta; 186197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch m_selectionBottom += blockDirectionDelta; 1875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (hasEllipsisBox()) 1885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ellipsisBox()->adjustPosition(dx, dy); 1895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RootInlineBox::childRemoved(InlineBox* box) 1925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 193d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (&box->renderer() == m_lineBreakObj) 1945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) setLineBreakInfo(0, 0, BidiStatus()); 1955c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 196d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) for (RootInlineBox* prev = prevRootBox(); prev && prev->lineBreakObj() == &box->renderer(); prev = prev->prevRootBox()) { 1975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) prev->setLineBreakInfo(0, 0, BidiStatus()); 1985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) prev->markDirty(); 1995c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 2005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 2015c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2025c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)LayoutUnit RootInlineBox::alignBoxesInBlockDirection(LayoutUnit heightOfBlock, GlyphOverflowAndFallbackFontsMap& textBoxDataMap, VerticalPositionCache& verticalPositionCache) 2035c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 2045c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // SVG will handle vertical alignment on its own. 2055c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (isSVGRootInlineBox()) 2065c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 0; 207926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) 2085c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit maxPositionTop = 0; 2095c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit maxPositionBottom = 0; 2105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) int maxAscent = 0; 2115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) int maxDescent = 0; 2125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool setMaxAscent = false; 2135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool setMaxDescent = false; 2145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Figure out if we're in no-quirks mode. 216d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) bool noQuirksMode = renderer().document().inNoQuirksMode(); 2175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_baselineType = requiresIdeographicBaseline(textBoxDataMap) ? IdeographicBaseline : AlphabeticBaseline; 2195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) computeLogicalBoxHeights(this, maxPositionTop, maxPositionBottom, maxAscent, maxDescent, setMaxAscent, setMaxDescent, noQuirksMode, 2215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) textBoxDataMap, baselineType(), verticalPositionCache); 2225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 223197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch if (maxAscent + maxDescent < std::max(maxPositionTop, maxPositionBottom)) 2245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) adjustMaxAscentAndDescent(maxAscent, maxDescent, maxPositionTop, maxPositionBottom); 2255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit maxHeight = maxAscent + maxDescent; 2275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit lineTop = heightOfBlock; 2285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit lineBottom = heightOfBlock; 2295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit lineTopIncludingMargins = heightOfBlock; 2305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit lineBottomIncludingMargins = heightOfBlock; 231197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch LayoutUnit selectionBottom = heightOfBlock; 2325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool setLineTop = false; 2335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool hasAnnotationsBefore = false; 2345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool hasAnnotationsAfter = false; 235197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch placeBoxesInBlockDirection(heightOfBlock, maxHeight, maxAscent, noQuirksMode, lineTop, lineBottom, selectionBottom, setLineTop, 2365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) lineTopIncludingMargins, lineBottomIncludingMargins, hasAnnotationsBefore, hasAnnotationsAfter, baselineType()); 2375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_hasAnnotationsBefore = hasAnnotationsBefore; 2385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_hasAnnotationsAfter = hasAnnotationsAfter; 23902772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 240197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch maxHeight = std::max<LayoutUnit>(0, maxHeight); // FIXME: Is this really necessary? 2415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 242197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch setLineTopBottomPositions(lineTop, lineBottom, heightOfBlock, heightOfBlock + maxHeight, selectionBottom); 243aafa69cb17c9d6606c07663ade5f81388a2c5986Ben Murdoch if (block().view()->layoutState()->isPaginated()) 244aafa69cb17c9d6606c07663ade5f81388a2c5986Ben Murdoch setPaginatedLineWidth(block().availableLogicalWidthForContent()); 2455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit annotationsAdjustment = beforeAnnotationsAdjustment(); 2475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (annotationsAdjustment) { 2485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // FIXME: Need to handle pagination here. We might have to move to the next page/column as a result of the 2495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // ruby expansion. 250d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) adjustBlockDirectionPosition(annotationsAdjustment.toFloat()); 2515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) heightOfBlock += annotationsAdjustment; 2525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 2535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return heightOfBlock + maxHeight; 2555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 2565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 25793ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)float RootInlineBox::maxLogicalTop() const 25893ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles){ 25993ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) float maxLogicalTop = 0; 26093ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) computeMaxLogicalTop(maxLogicalTop); 26193ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) return maxLogicalTop; 26293ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles)} 26393ac45cfc74041c8ae536ce58a9534d46db2024eTorne (Richard Coles) 2645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)LayoutUnit RootInlineBox::beforeAnnotationsAdjustment() const 2655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 2665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit result = 0; 2675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 268d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (!renderer().style()->isFlippedLinesWritingMode()) { 2695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Annotations under the previous line may push us down. 2705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (prevRootBox() && prevRootBox()->hasAnnotationsAfter()) 2715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) result = prevRootBox()->computeUnderAnnotationAdjustment(lineTop()); 2725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!hasAnnotationsBefore()) 2745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return result; 2755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Annotations over this line may push us further down. 277197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch LayoutUnit highestAllowedPosition = prevRootBox() ? std::min(prevRootBox()->lineBottom(), lineTop()) + result : static_cast<LayoutUnit>(block().borderBefore()); 2785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) result = computeOverAnnotationAdjustment(highestAllowedPosition); 2795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } else { 2805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Annotations under this line may push us up. 2815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (hasAnnotationsBefore()) 282d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) result = computeUnderAnnotationAdjustment(prevRootBox() ? prevRootBox()->lineBottom() : static_cast<LayoutUnit>(block().borderBefore())); 2835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!prevRootBox() || !prevRootBox()->hasAnnotationsAfter()) 2855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return result; 2865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // We have to compute the expansion for annotations over the previous line to see how much we should move. 288197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch LayoutUnit lowestAllowedPosition = std::max(prevRootBox()->lineBottom(), lineTop()) - result; 2895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) result = prevRootBox()->computeOverAnnotationAdjustment(lowestAllowedPosition); 2905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 2915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return result; 2935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 2945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2957242dc3dbeb210b5e876a3c42d1ec1a667fc621aPrimiano TucciGapRects RootInlineBox::lineSelectionGap(const RenderBlock* rootBlock, const LayoutPoint& rootBlockPhysicalPosition, const LayoutSize& offsetFromRootBlock, 2967242dc3dbeb210b5e876a3c42d1ec1a667fc621aPrimiano Tucci LayoutUnit selTop, LayoutUnit selHeight, const PaintInfo* paintInfo) const 2975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 2985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RenderObject::SelectionState lineState = selectionState(); 2995c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool leftGap, rightGap; 301d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) block().getSelectionGapInfo(lineState, leftGap, rightGap); 3025c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3035c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) GapRects result; 3045c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3055c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) InlineBox* firstBox = firstSelectedBox(); 3065c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) InlineBox* lastBox = lastSelectedBox(); 307d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (leftGap) { 308d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) result.uniteLeft(block().logicalLeftSelectionGap(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, 309d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) &firstBox->parent()->renderer(), firstBox->logicalLeft(), selTop, selHeight, paintInfo)); 310d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) } 311d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (rightGap) { 312d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) result.uniteRight(block().logicalRightSelectionGap(rootBlock, rootBlockPhysicalPosition, offsetFromRootBlock, 313d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) &lastBox->parent()->renderer(), lastBox->logicalRight(), selTop, selHeight, paintInfo)); 314d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) } 3155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // When dealing with bidi text, a non-contiguous selection region is possible. 3175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // e.g. The logical text aaaAAAbbb (capitals denote RTL text and non-capitals LTR) is layed out 3185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // visually as 3 text runs |aaa|bbb|AAA| if we select 4 characters from the start of the text the 3195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // selection will look like (underline denotes selection): 3205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // |aaa|bbb|AAA| 3215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // ___ _ 3225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // We can see that the |bbb| run is not part of the selection while the runs around it are. 3235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (firstBox && firstBox != lastBox) { 3245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Now fill in any gaps on the line that occurred between two selected elements. 3255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit lastLogicalLeft = firstBox->logicalRight(); 3265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool isPreviousBoxSelected = firstBox->selectionState() != RenderObject::SelectionNone; 3275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) for (InlineBox* box = firstBox->nextLeafChild(); box; box = box->nextLeafChild()) { 3285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (box->selectionState() != RenderObject::SelectionNone) { 3295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutRect logicalRect(lastLogicalLeft, selTop, box->logicalLeft() - lastLogicalLeft, selHeight); 330d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) logicalRect.move(renderer().isHorizontalWritingMode() ? offsetFromRootBlock : LayoutSize(offsetFromRootBlock.height(), offsetFromRootBlock.width())); 3315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutRect gapRect = rootBlock->logicalRectToPhysicalRect(rootBlockPhysicalPosition, logicalRect); 3325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (isPreviousBoxSelected && gapRect.width() > 0 && gapRect.height() > 0) { 333d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (paintInfo && box->parent()->renderer().style()->visibility() == VISIBLE) 334d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) paintInfo->context->fillRect(gapRect, box->parent()->renderer().selectionBackgroundColor()); 3355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // VisibleSelection may be non-contiguous, see comment above. 3365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) result.uniteCenter(gapRect); 3375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 3385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) lastLogicalLeft = box->logicalRight(); 3395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 3405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (box == lastBox) 3415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) break; 3425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) isPreviousBoxSelected = box->selectionState() != RenderObject::SelectionNone; 3435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 3445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 3455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return result; 3475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 3485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3497242dc3dbeb210b5e876a3c42d1ec1a667fc621aPrimiano TucciRenderObject::SelectionState RootInlineBox::selectionState() const 3505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 3515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Walk over all of the selected boxes. 3525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RenderObject::SelectionState state = RenderObject::SelectionNone; 3535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) for (InlineBox* box = firstLeafChild(); box; box = box->nextLeafChild()) { 3545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RenderObject::SelectionState boxState = box->selectionState(); 3555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if ((boxState == RenderObject::SelectionStart && state == RenderObject::SelectionEnd) || 3565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) (boxState == RenderObject::SelectionEnd && state == RenderObject::SelectionStart)) 3575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) state = RenderObject::SelectionBoth; 3585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) else if (state == RenderObject::SelectionNone || 3595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ((boxState == RenderObject::SelectionStart || boxState == RenderObject::SelectionEnd) && 3605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) (state == RenderObject::SelectionNone || state == RenderObject::SelectionInside))) 3615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) state = boxState; 3625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) else if (boxState == RenderObject::SelectionNone && state == RenderObject::SelectionStart) { 3635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // We are past the end of the selection. 3645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) state = RenderObject::SelectionBoth; 3655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 3665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (state == RenderObject::SelectionBoth) 3675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) break; 3685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 3695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return state; 3715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 3725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3737242dc3dbeb210b5e876a3c42d1ec1a667fc621aPrimiano TucciInlineBox* RootInlineBox::firstSelectedBox() const 3745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 3755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) for (InlineBox* box = firstLeafChild(); box; box = box->nextLeafChild()) { 3765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (box->selectionState() != RenderObject::SelectionNone) 3775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return box; 3785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 3795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 0; 3815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 3825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3837242dc3dbeb210b5e876a3c42d1ec1a667fc621aPrimiano TucciInlineBox* RootInlineBox::lastSelectedBox() const 3845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 3855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) for (InlineBox* box = lastLeafChild(); box; box = box->prevLeafChild()) { 3865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (box->selectionState() != RenderObject::SelectionNone) 3875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return box; 3885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 3895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 0; 3915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 3925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)LayoutUnit RootInlineBox::selectionTop() const 3945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 3955c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit selectionTop = m_lineTop; 3965c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (m_hasAnnotationsBefore) 398d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) selectionTop -= !renderer().style()->isFlippedLinesWritingMode() ? computeOverAnnotationAdjustment(m_lineTop) : computeUnderAnnotationAdjustment(m_lineTop); 3995c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 400d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (renderer().style()->isFlippedLinesWritingMode() || !prevRootBox()) 4015c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return selectionTop; 4025c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 403d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LayoutUnit prevBottom = prevRootBox()->selectionBottom(); 404d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (prevBottom < selectionTop && block().containsFloats()) { 4055c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // This line has actually been moved further down, probably from a large line-height, but possibly because the 4065c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // line was forced to clear floats. If so, let's check the offsets, and only be willing to use the previous 4075c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // line's bottom if the offsets are greater on both sides. 408d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LayoutUnit prevLeft = block().logicalLeftOffsetForLine(prevBottom, false); 409d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LayoutUnit prevRight = block().logicalRightOffsetForLine(prevBottom, false); 410d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LayoutUnit newLeft = block().logicalLeftOffsetForLine(selectionTop, false); 411d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LayoutUnit newRight = block().logicalRightOffsetForLine(selectionTop, false); 4125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (prevLeft > newLeft || prevRight < newRight) 4135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return selectionTop; 4145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 4155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 4165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return prevBottom; 4175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 4185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 4195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)LayoutUnit RootInlineBox::selectionTopAdjustedForPrecedingBlock() const 4205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 4215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit top = selectionTop(); 4225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 423d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) RenderObject::SelectionState blockSelectionState = root().block().selectionState(); 4245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (blockSelectionState != RenderObject::SelectionInside && blockSelectionState != RenderObject::SelectionEnd) 4255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return top; 4265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 4275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutSize offsetToBlockBefore; 428d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (RenderBlock* block = root().block().blockBeforeWithinSelectionRoot(offsetToBlockBefore)) { 429197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch if (block->isRenderBlockFlow()) { 430197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch if (RootInlineBox* lastLine = toRenderBlockFlow(block)->lastRootBox()) { 431197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch RenderObject::SelectionState lastLineSelectionState = lastLine->selectionState(); 432197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch if (lastLineSelectionState != RenderObject::SelectionInside && lastLineSelectionState != RenderObject::SelectionStart) 433197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch return top; 434197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch 435197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch LayoutUnit lastLineSelectionBottom = lastLine->selectionBottom() + offsetToBlockBefore.height(); 436197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch top = std::max(top, lastLineSelectionBottom); 437197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch } 4385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 4395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 4405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 4415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return top; 4425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 4435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 4445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)LayoutUnit RootInlineBox::selectionBottom() const 4455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 446197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch LayoutUnit selectionBottom = m_selectionBottom; 4475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 4485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (m_hasAnnotationsAfter) 449d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) selectionBottom += !renderer().style()->isFlippedLinesWritingMode() ? computeUnderAnnotationAdjustment(m_lineBottom) : computeOverAnnotationAdjustment(m_lineBottom); 4505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 451d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (!renderer().style()->isFlippedLinesWritingMode() || !nextRootBox()) 4525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return selectionBottom; 4535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 4545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit nextTop = nextRootBox()->selectionTop(); 455d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (nextTop > selectionBottom && block().containsFloats()) { 4565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // The next line has actually been moved further over, probably from a large line-height, but possibly because the 4575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // line was forced to clear floats. If so, let's check the offsets, and only be willing to use the next 4585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // line's top if the offsets are greater on both sides. 459d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LayoutUnit nextLeft = block().logicalLeftOffsetForLine(nextTop, false); 460d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LayoutUnit nextRight = block().logicalRightOffsetForLine(nextTop, false); 461d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LayoutUnit newLeft = block().logicalLeftOffsetForLine(selectionBottom, false); 462d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LayoutUnit newRight = block().logicalRightOffsetForLine(selectionBottom, false); 4635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (nextLeft > newLeft || nextRight < newRight) 4645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return selectionBottom; 4655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 4665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 4675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return nextTop; 4685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 4695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 4705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)int RootInlineBox::blockDirectionPointInLine() const 4715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 472197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch return !block().style()->isFlippedBlocksWritingMode() ? std::max(lineTop(), selectionTop()) : std::min(lineBottom(), selectionBottom()); 4735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 4745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 475d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles)RenderBlockFlow& RootInlineBox::block() const 4765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 47751b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) return toRenderBlockFlow(renderer()); 4785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 4795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 4805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)static bool isEditableLeaf(InlineBox* leaf) 4815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 482197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch return leaf && leaf->renderer().node() && leaf->renderer().node()->hasEditableStyle(); 4835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 4845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 4855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)InlineBox* RootInlineBox::closestLeafChildForPoint(const IntPoint& pointInContents, bool onlyEditableLeaves) 4865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 487d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) return closestLeafChildForLogicalLeftPosition(block().isHorizontalWritingMode() ? pointInContents.x() : pointInContents.y(), onlyEditableLeaves); 4885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 4895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 4905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)InlineBox* RootInlineBox::closestLeafChildForLogicalLeftPosition(int leftPosition, bool onlyEditableLeaves) 4915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 4925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) InlineBox* firstLeaf = firstLeafChild(); 4935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) InlineBox* lastLeaf = lastLeafChild(); 4945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 4955c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (firstLeaf != lastLeaf) { 4965c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (firstLeaf->isLineBreak()) 4975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) firstLeaf = firstLeaf->nextLeafChildIgnoringLineBreak(); 4985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) else if (lastLeaf->isLineBreak()) 4995c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) lastLeaf = lastLeaf->prevLeafChildIgnoringLineBreak(); 5005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 5015c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 5025c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (firstLeaf == lastLeaf && (!onlyEditableLeaves || isEditableLeaf(firstLeaf))) 5035c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return firstLeaf; 5045c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 5055c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Avoid returning a list marker when possible. 506d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (leftPosition <= firstLeaf->logicalLeft() && !firstLeaf->renderer().isListMarker() && (!onlyEditableLeaves || isEditableLeaf(firstLeaf))) 5075c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // The leftPosition coordinate is less or equal to left edge of the firstLeaf. 5085c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Return it. 5095c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return firstLeaf; 5105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 511d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (leftPosition >= lastLeaf->logicalRight() && !lastLeaf->renderer().isListMarker() && (!onlyEditableLeaves || isEditableLeaf(lastLeaf))) 5125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // The leftPosition coordinate is greater or equal to right edge of the lastLeaf. 5135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Return it. 5145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return lastLeaf; 5155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 5165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) InlineBox* closestLeaf = 0; 5175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) for (InlineBox* leaf = firstLeaf; leaf; leaf = leaf->nextLeafChildIgnoringLineBreak()) { 518d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (!leaf->renderer().isListMarker() && (!onlyEditableLeaves || isEditableLeaf(leaf))) { 5195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) closestLeaf = leaf; 5205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (leftPosition < leaf->logicalRight()) 5215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // The x coordinate is less than the right edge of the box. 5225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Return it. 5235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return leaf; 5245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 5255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 5265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 5275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return closestLeaf ? closestLeaf : lastLeaf; 5285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 5295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 5305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)BidiStatus RootInlineBox::lineBreakBidiStatus() const 53102772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch{ 5325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return BidiStatus(static_cast<WTF::Unicode::Direction>(m_lineBreakBidiStatusEor), static_cast<WTF::Unicode::Direction>(m_lineBreakBidiStatusLastStrong), static_cast<WTF::Unicode::Direction>(m_lineBreakBidiStatusLast), m_lineBreakContext); 5335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 5345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 5355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RootInlineBox::setLineBreakInfo(RenderObject* obj, unsigned breakPos, const BidiStatus& status) 5365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 53751b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) // When setting lineBreakObj, the RenderObject must not be a RenderInline 53851b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) // with no line boxes, otherwise all sorts of invariants are broken later. 53951b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) // This has security implications because if the RenderObject does not 54051b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) // point to at least one line box, then that RenderInline can be deleted 54151b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) // later without resetting the lineBreakObj, leading to use-after-free. 54251b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) ASSERT_WITH_SECURITY_IMPLICATION(!obj || obj->isText() || !(obj->isRenderInline() && obj->isBox() && !toRenderBox(obj)->inlineBoxWrapper())); 54351b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) 5445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_lineBreakObj = obj; 5455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_lineBreakPos = breakPos; 5465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_lineBreakBidiStatusEor = status.eor; 5475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_lineBreakBidiStatusLastStrong = status.lastStrong; 5485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_lineBreakBidiStatusLast = status.last; 5495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_lineBreakContext = status.context; 5505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 5515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 5525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)EllipsisBox* RootInlineBox::ellipsisBox() const 5535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 5545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!hasEllipsisBox()) 5555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 0; 5565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return gEllipsisBoxMap->get(this); 5575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 5585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 5595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RootInlineBox::removeLineBoxFromRenderObject() 5605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 561d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) block().lineBoxes()->removeLineBox(this); 5625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 5635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 5645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RootInlineBox::extractLineBoxFromRenderObject() 5655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 566d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) block().lineBoxes()->extractLineBox(this); 5675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 5685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 5695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RootInlineBox::attachLineBoxToRenderObject() 5705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 571d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) block().lineBoxes()->attachLineBox(this); 5725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 5735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 5745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)LayoutRect RootInlineBox::paddedLayoutOverflowRect(LayoutUnit endPadding) const 5755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 5765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutRect lineLayoutOverflow = layoutOverflowRect(lineTop(), lineBottom()); 5775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!endPadding) 5785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return lineLayoutOverflow; 57902772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 5805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (isHorizontal()) { 5815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (isLeftToRightDirection()) 582197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch lineLayoutOverflow.shiftMaxXEdgeTo(std::max<LayoutUnit>(lineLayoutOverflow.maxX(), logicalRight() + endPadding)); 5835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) else 584197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch lineLayoutOverflow.shiftXEdgeTo(std::min<LayoutUnit>(lineLayoutOverflow.x(), logicalLeft() - endPadding)); 5855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } else { 5865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (isLeftToRightDirection()) 587197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch lineLayoutOverflow.shiftMaxYEdgeTo(std::max<LayoutUnit>(lineLayoutOverflow.maxY(), logicalRight() + endPadding)); 5885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) else 589197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch lineLayoutOverflow.shiftYEdgeTo(std::min<LayoutUnit>(lineLayoutOverflow.y(), logicalLeft() - endPadding)); 5905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 59102772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 5925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return lineLayoutOverflow; 5935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 5945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 5955c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)static void setAscentAndDescent(int& ascent, int& descent, int newAscent, int newDescent, bool& ascentDescentSet) 5965c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 5975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!ascentDescentSet) { 5985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ascentDescentSet = true; 5995c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ascent = newAscent; 6005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) descent = newDescent; 6015c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } else { 602197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch ascent = std::max(ascent, newAscent); 603197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch descent = std::max(descent, newDescent); 6045c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 6055c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 6065c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 6075c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RootInlineBox::ascentAndDescentForBox(InlineBox* box, GlyphOverflowAndFallbackFontsMap& textBoxDataMap, int& ascent, int& descent, 6085c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool& affectsAscent, bool& affectsDescent) const 6095c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 6105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool ascentDescentSet = false; 6115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 6125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Replaced boxes will return 0 for the line-height if line-box-contain says they are 6135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // not to be included. 614d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (box->renderer().isReplaced()) { 615d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (renderer().style(isFirstLineStyle())->lineBoxContain() & LineBoxContainReplaced) { 6165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ascent = box->baselinePosition(baselineType()); 6175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) descent = box->lineHeight() - ascent; 61802772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 6195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Replaced elements always affect both the ascent and descent. 6205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) affectsAscent = true; 6215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) affectsDescent = true; 6225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 6235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return; 6245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 6255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 6265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) Vector<const SimpleFontData*>* usedFonts = 0; 6275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) GlyphOverflow* glyphOverflow = 0; 6285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (box->isText()) { 6295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) GlyphOverflowAndFallbackFontsMap::iterator it = textBoxDataMap.find(toInlineTextBox(box)); 6305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) usedFonts = it == textBoxDataMap.end() ? 0 : &it->value.first; 6315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) glyphOverflow = it == textBoxDataMap.end() ? 0 : &it->value.second; 6325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 63302772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 6345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool includeLeading = includeLeadingForBox(box); 6355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool includeFont = includeFontForBox(box); 63602772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 6375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool setUsedFont = false; 6385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool setUsedFontWithLeading = false; 6395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 640d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (usedFonts && !usedFonts->isEmpty() && (includeFont || (box->renderer().style(isFirstLineStyle())->lineHeight().isNegative() && includeLeading))) { 641d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) usedFonts->append(box->renderer().style(isFirstLineStyle())->font().primaryFont()); 6425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) for (size_t i = 0; i < usedFonts->size(); ++i) { 6435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const FontMetrics& fontMetrics = usedFonts->at(i)->fontMetrics(); 6445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) int usedFontAscent = fontMetrics.ascent(baselineType()); 6455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) int usedFontDescent = fontMetrics.descent(baselineType()); 6465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) int halfLeading = (fontMetrics.lineSpacing() - fontMetrics.height()) / 2; 6475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) int usedFontAscentAndLeading = usedFontAscent + halfLeading; 6485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) int usedFontDescentAndLeading = fontMetrics.lineSpacing() - usedFontAscentAndLeading; 6495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (includeFont) { 6505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) setAscentAndDescent(ascent, descent, usedFontAscent, usedFontDescent, ascentDescentSet); 6515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) setUsedFont = true; 6525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 6535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (includeLeading) { 6545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) setAscentAndDescent(ascent, descent, usedFontAscentAndLeading, usedFontDescentAndLeading, ascentDescentSet); 6555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) setUsedFontWithLeading = true; 6565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 6575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!affectsAscent) 6585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) affectsAscent = usedFontAscent - box->logicalTop() > 0; 6595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!affectsDescent) 6605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) affectsDescent = usedFontDescent + box->logicalTop() > 0; 6615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 6625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 6635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 6645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // If leading is included for the box, then we compute that box. 6655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (includeLeading && !setUsedFontWithLeading) { 6665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) int ascentWithLeading = box->baselinePosition(baselineType()); 6675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) int descentWithLeading = box->lineHeight() - ascentWithLeading; 6685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) setAscentAndDescent(ascent, descent, ascentWithLeading, descentWithLeading, ascentDescentSet); 66902772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 6705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Examine the font box for inline flows and text boxes to see if any part of it is above the baseline. 6715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // If the top of our font box relative to the root box baseline is above the root box baseline, then 6725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // we are contributing to the maxAscent value. Descent is similar. If any part of our font box is below 6735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // the root box's baseline, then we contribute to the maxDescent value. 6745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) affectsAscent = ascentWithLeading - box->logicalTop() > 0; 67502772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch affectsDescent = descentWithLeading + box->logicalTop() > 0; 6765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 67702772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 6785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (includeFontForBox(box) && !setUsedFont) { 679d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) int fontAscent = box->renderer().style(isFirstLineStyle())->fontMetrics().ascent(baselineType()); 680d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) int fontDescent = box->renderer().style(isFirstLineStyle())->fontMetrics().descent(baselineType()); 6815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) setAscentAndDescent(ascent, descent, fontAscent, fontDescent, ascentDescentSet); 6825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) affectsAscent = fontAscent - box->logicalTop() > 0; 68302772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch affectsDescent = fontDescent + box->logicalTop() > 0; 6845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 6855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 6865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (includeGlyphsForBox(box) && glyphOverflow && glyphOverflow->computeBounds) { 6875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) setAscentAndDescent(ascent, descent, glyphOverflow->top, glyphOverflow->bottom, ascentDescentSet); 6885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) affectsAscent = glyphOverflow->top - box->logicalTop() > 0; 68902772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch affectsDescent = glyphOverflow->bottom + box->logicalTop() > 0; 690197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch glyphOverflow->top = std::min(glyphOverflow->top, std::max(0, glyphOverflow->top - box->renderer().style(isFirstLineStyle())->fontMetrics().ascent(baselineType()))); 691197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch glyphOverflow->bottom = std::min(glyphOverflow->bottom, std::max(0, glyphOverflow->bottom - box->renderer().style(isFirstLineStyle())->fontMetrics().descent(baselineType()))); 6925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 6935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 6945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (includeMarginForBox(box)) { 695d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LayoutUnit ascentWithMargin = box->renderer().style(isFirstLineStyle())->fontMetrics().ascent(baselineType()); 696d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LayoutUnit descentWithMargin = box->renderer().style(isFirstLineStyle())->fontMetrics().descent(baselineType()); 697d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (box->parent() && !box->renderer().isText()) { 6985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ascentWithMargin += box->boxModelObject()->borderBefore() + box->boxModelObject()->paddingBefore() + box->boxModelObject()->marginBefore(); 6995c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) descentWithMargin += box->boxModelObject()->borderAfter() + box->boxModelObject()->paddingAfter() + box->boxModelObject()->marginAfter(); 7005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 7015c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) setAscentAndDescent(ascent, descent, ascentWithMargin, descentWithMargin, ascentDescentSet); 70202772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 7035c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Treat like a replaced element, since we're using the margin box. 7045c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) affectsAscent = true; 7055c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) affectsDescent = true; 7065c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 7075c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 7085c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 7095c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)LayoutUnit RootInlineBox::verticalPositionForBox(InlineBox* box, VerticalPositionCache& verticalPositionCache) 7105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 711d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (box->renderer().isText()) 7125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return box->parent()->logicalTop(); 71302772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 7145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RenderBoxModelObject* renderer = box->boxModelObject(); 7155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(renderer->isInline()); 7165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!renderer->isInline()) 7175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 0; 7185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 7195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // This method determines the vertical position for inline elements. 7205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool firstLine = isFirstLineStyle(); 7219bbd2f5e390b01907d97ecffde80aa1b06113aacTorne (Richard Coles) if (firstLine && !renderer->document().styleEngine()->usesFirstLineRules()) 7225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) firstLine = false; 7235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 7245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Check the cache. 7255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) bool isRenderInline = renderer->isRenderInline(); 7265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (isRenderInline && !firstLine) { 7275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit verticalPosition = verticalPositionCache.get(renderer, baselineType()); 7285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (verticalPosition != PositionUndefined) 7295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return verticalPosition; 7305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 7315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 7325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit verticalPosition = 0; 7335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) EVerticalAlign verticalAlign = renderer->style()->verticalAlign(); 7345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (verticalAlign == TOP || verticalAlign == BOTTOM) 7355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 0; 73602772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 7375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RenderObject* parent = renderer->parent(); 7385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (parent->isRenderInline() && parent->style()->verticalAlign() != TOP && parent->style()->verticalAlign() != BOTTOM) 7395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) verticalPosition = box->parent()->logicalTop(); 74002772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 7415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (verticalAlign != BASELINE) { 7425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const Font& font = parent->style(firstLine)->font(); 7435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const FontMetrics& fontMetrics = font.fontMetrics(); 74409380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) int fontSize = font.fontDescription().computedPixelSize(); 7455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 7465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LineDirectionMode lineDirection = parent->isHorizontalWritingMode() ? HorizontalLine : VerticalLine; 7475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 7485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (verticalAlign == SUB) 7495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) verticalPosition += fontSize / 5 + 1; 7505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) else if (verticalAlign == SUPER) 7515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) verticalPosition -= fontSize / 3 + 1; 7525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) else if (verticalAlign == TEXT_TOP) 7535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) verticalPosition += renderer->baselinePosition(baselineType(), firstLine, lineDirection) - fontMetrics.ascent(baselineType()); 7545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) else if (verticalAlign == MIDDLE) 7555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) verticalPosition = (verticalPosition - static_cast<LayoutUnit>(fontMetrics.xHeight() / 2) - renderer->lineHeight(firstLine, lineDirection) / 2 + renderer->baselinePosition(baselineType(), firstLine, lineDirection)).round(); 7565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) else if (verticalAlign == TEXT_BOTTOM) { 7575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) verticalPosition += fontMetrics.descent(baselineType()); 7585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // lineHeight - baselinePosition is always 0 for replaced elements (except inline blocks), so don't bother wasting time in that case. 7595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!renderer->isReplaced() || renderer->isInlineBlockOrInlineTable()) 7605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) verticalPosition -= (renderer->lineHeight(firstLine, lineDirection) - renderer->baselinePosition(baselineType(), firstLine, lineDirection)); 7615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } else if (verticalAlign == BASELINE_MIDDLE) 7625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) verticalPosition += -renderer->lineHeight(firstLine, lineDirection) / 2 + renderer->baselinePosition(baselineType(), firstLine, lineDirection); 7635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) else if (verticalAlign == LENGTH) { 7645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LayoutUnit lineHeight; 7655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) //Per http://www.w3.org/TR/CSS21/visudet.html#propdef-vertical-align: 'Percentages: refer to the 'line-height' of the element itself'. 7665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (renderer->style()->verticalAlignLength().isPercent()) 7675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) lineHeight = renderer->style()->computedLineHeight(); 7685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) else 7695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) lineHeight = renderer->lineHeight(firstLine, lineDirection); 77009380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) verticalPosition -= valueForLength(renderer->style()->verticalAlignLength(), lineHeight); 7715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 7725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 7735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 7745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Store the cached value. 7755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (isRenderInline && !firstLine) 7765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) verticalPositionCache.set(renderer, baselineType(), verticalPosition); 7775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 7785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return verticalPosition; 7795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 7805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 7815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)bool RootInlineBox::includeLeadingForBox(InlineBox* box) const 7825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 783d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (box->renderer().isReplaced() || (box->renderer().isText() && !box->isText())) 7845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return false; 7855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 786d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LineBoxContain lineBoxContain = renderer().style()->lineBoxContain(); 7875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return (lineBoxContain & LineBoxContainInline) || (box == this && (lineBoxContain & LineBoxContainBlock)); 7885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 7895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 7905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)bool RootInlineBox::includeFontForBox(InlineBox* box) const 7915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 792d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (box->renderer().isReplaced() || (box->renderer().isText() && !box->isText())) 7935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return false; 79402772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 7955c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!box->isText() && box->isInlineFlowBox() && !toInlineFlowBox(box)->hasTextChildren()) 7965c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return false; 7975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 7985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // For now map "glyphs" to "font" in vertical text mode until the bounds returned by glyphs aren't garbage. 799d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LineBoxContain lineBoxContain = renderer().style()->lineBoxContain(); 8005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return (lineBoxContain & LineBoxContainFont) || (!isHorizontal() && (lineBoxContain & LineBoxContainGlyphs)); 8015c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 8025c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 8035c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)bool RootInlineBox::includeGlyphsForBox(InlineBox* box) const 8045c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 805d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (box->renderer().isReplaced() || (box->renderer().isText() && !box->isText())) 8065c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return false; 80702772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 8085c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!box->isText() && box->isInlineFlowBox() && !toInlineFlowBox(box)->hasTextChildren()) 8095c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return false; 8105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 8115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // FIXME: We can't fit to glyphs yet for vertical text, since the bounds returned are garbage. 812d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LineBoxContain lineBoxContain = renderer().style()->lineBoxContain(); 8135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return isHorizontal() && (lineBoxContain & LineBoxContainGlyphs); 8145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 8155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 8165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)bool RootInlineBox::includeMarginForBox(InlineBox* box) const 8175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 818d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (box->renderer().isReplaced() || (box->renderer().isText() && !box->isText())) 8195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return false; 8205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 821d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LineBoxContain lineBoxContain = renderer().style()->lineBoxContain(); 8225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return lineBoxContain & LineBoxContainInlineBox; 8235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 8245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 8255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 8265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)bool RootInlineBox::fitsToGlyphs() const 8275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 8285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // FIXME: We can't fit to glyphs yet for vertical text, since the bounds returned are garbage. 829d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LineBoxContain lineBoxContain = renderer().style()->lineBoxContain(); 8305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return isHorizontal() && (lineBoxContain & LineBoxContainGlyphs); 8315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 8325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 8335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)bool RootInlineBox::includesRootLineBoxFontOrLeading() const 8345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 835d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) LineBoxContain lineBoxContain = renderer().style()->lineBoxContain(); 8365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return (lineBoxContain & LineBoxContainBlock) || (lineBoxContain & LineBoxContainInline) || (lineBoxContain & LineBoxContainFont); 8375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 8385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 8395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)Node* RootInlineBox::getLogicalStartBoxWithNode(InlineBox*& startBox) const 8405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 8415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) Vector<InlineBox*> leafBoxesInLogicalOrder; 8425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) collectLeafBoxesInLogicalOrder(leafBoxesInLogicalOrder); 8435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) for (size_t i = 0; i < leafBoxesInLogicalOrder.size(); ++i) { 844d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (leafBoxesInLogicalOrder[i]->renderer().node()) { 8455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) startBox = leafBoxesInLogicalOrder[i]; 846d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) return startBox->renderer().node(); 8475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 8485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 8495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) startBox = 0; 8505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 0; 8515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 85202772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 8535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)Node* RootInlineBox::getLogicalEndBoxWithNode(InlineBox*& endBox) const 8545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 8555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) Vector<InlineBox*> leafBoxesInLogicalOrder; 8565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) collectLeafBoxesInLogicalOrder(leafBoxesInLogicalOrder); 85702772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch for (size_t i = leafBoxesInLogicalOrder.size(); i > 0; --i) { 858d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (leafBoxesInLogicalOrder[i - 1]->renderer().node()) { 8595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) endBox = leafBoxesInLogicalOrder[i - 1]; 860d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) return endBox->renderer().node(); 8615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 8625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 8635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) endBox = 0; 8645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return 0; 8655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 8665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 8675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#ifndef NDEBUG 8685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)const char* RootInlineBox::boxName() const 8695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 8705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return "RootInlineBox"; 8715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 8725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#endif 8735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 874c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)} // namespace blink 875