void RenderFlowThread::layout() { m_pageLogicalSizeChanged = m_regionsInvalidated && everHadLayout(); CurrentRenderFlowThreadMaintainer currentFlowThreadSetter(this); RenderBlockFlow::layout(); m_pageLogicalSizeChanged = false; }
void RenderFlowThread::layout() { StackStats::LayoutCheckPoint layoutCheckPoint; m_pageLogicalSizeChanged = m_regionsInvalidated && everHadLayout(); validateRegions(); CurrentRenderFlowThreadMaintainer currentFlowThreadSetter(this); RenderBlock::layout(); m_pageLogicalSizeChanged = false; if (lastRegion()) lastRegion()->expandToEncompassFlowThreadContentsIfNeeded(); if (shouldDispatchRegionLayoutUpdateEvent()) dispatchRegionLayoutUpdateEvent(); }
void RenderFlowThread::layout() { StackStats::LayoutCheckPoint layoutCheckPoint; m_pageLogicalHeightChanged = m_regionsInvalidated && everHadLayout(); if (m_regionsInvalidated) { m_regionsInvalidated = false; m_regionsHaveUniformLogicalWidth = true; m_regionsHaveUniformLogicalHeight = true; m_regionRangeMap.clear(); m_breakBeforeToRegionMap.clear(); m_breakAfterToRegionMap.clear(); LayoutUnit previousRegionLogicalWidth = 0; LayoutUnit previousRegionLogicalHeight = 0; bool firstRegionVisited = false; if (hasRegions()) { for (RenderRegionList::iterator iter = m_regionList.begin(); iter != m_regionList.end(); ++iter) { RenderRegion* region = *iter; ASSERT(!region->needsLayout()); region->deleteAllRenderBoxRegionInfo(); // In the normal layout phase we need to initialize the overrideLogicalContentHeight for auto-height regions. // See initializeRegionsOverrideLogicalContentHeight for the explanation. // Also, if we have auto-height regions we can't assume m_regionsHaveUniformLogicalHeight to be true in the first phase // because the auto-height regions don't have their height computed yet. if (view()->normalLayoutPhase() && region->hasAutoLogicalHeight()) { region->setOverrideLogicalContentHeight(region->maxPageLogicalHeight()); m_regionsHaveUniformLogicalHeight = false; } LayoutUnit regionLogicalWidth = region->pageLogicalWidth(); LayoutUnit regionLogicalHeight = region->pageLogicalHeight(); if (!firstRegionVisited) firstRegionVisited = true; else { if (m_regionsHaveUniformLogicalWidth && previousRegionLogicalWidth != regionLogicalWidth) m_regionsHaveUniformLogicalWidth = false; if (m_regionsHaveUniformLogicalHeight && previousRegionLogicalHeight != regionLogicalHeight) m_regionsHaveUniformLogicalHeight = false; } previousRegionLogicalWidth = regionLogicalWidth; } updateLogicalWidth(); // Called to get the maximum logical width for the region. updateRegionsFlowThreadPortionRect(); } } CurrentRenderFlowThreadMaintainer currentFlowThreadSetter(this); RenderBlock::layout(); m_pageLogicalHeightChanged = false; if (lastRegion()) lastRegion()->expandToEncompassFlowThreadContentsIfNeeded(); if (shouldDispatchRegionLayoutUpdateEvent()) dispatchRegionLayoutUpdateEvent(); }
void RenderFlowThread::layout() { m_pageLogicalHeightChanged = m_regionsInvalidated && everHadLayout(); if (m_regionsInvalidated) { m_regionsInvalidated = false; m_hasValidRegions = false; m_regionsHaveUniformLogicalWidth = true; m_regionsHaveUniformLogicalHeight = true; m_regionRangeMap.clear(); LayoutUnit previousRegionLogicalWidth = 0; LayoutUnit previousRegionLogicalHeight = 0; if (hasRegions()) { for (RenderRegionList::iterator iter = m_regionList.begin(); iter != m_regionList.end(); ++iter) { RenderRegion* region = *iter; if (!region->isValid()) continue; ASSERT(!region->needsLayout()); region->deleteAllRenderBoxRegionInfo(); LayoutUnit regionLogicalWidth = region->pageLogicalWidth(); LayoutUnit regionLogicalHeight = region->pageLogicalHeight(); if (!m_hasValidRegions) m_hasValidRegions = true; else { if (m_regionsHaveUniformLogicalWidth && previousRegionLogicalWidth != regionLogicalWidth) m_regionsHaveUniformLogicalWidth = false; if (m_regionsHaveUniformLogicalHeight && previousRegionLogicalHeight != regionLogicalHeight) m_regionsHaveUniformLogicalHeight = false; } previousRegionLogicalWidth = regionLogicalWidth; } updateLogicalWidth(); // Called to get the maximum logical width for the region. LayoutUnit logicalHeight = 0; for (RenderRegionList::iterator iter = m_regionList.begin(); iter != m_regionList.end(); ++iter) { RenderRegion* region = *iter; if (!region->isValid()) continue; LayoutUnit regionLogicalWidth = region->pageLogicalWidth(); LayoutUnit regionLogicalHeight = region->logicalHeightOfAllFlowThreadContent(); LayoutRect regionRect(style()->direction() == LTR ? ZERO_LAYOUT_UNIT : logicalWidth() - regionLogicalWidth, logicalHeight, regionLogicalWidth, regionLogicalHeight); region->setFlowThreadPortionRect(isHorizontalWritingMode() ? regionRect : regionRect.transposedRect()); logicalHeight += regionLogicalHeight; } } } CurrentRenderFlowThreadMaintainer currentFlowThreadSetter(this); RenderBlock::layout(); m_pageLogicalHeightChanged = false; if (lastRegion()) lastRegion()->expandToEncompassFlowThreadContentsIfNeeded(); if (shouldDispatchRegionLayoutUpdateEvent()) dispatchRegionLayoutUpdateEvent(); }
void RenderFlowThread::layout() { bool regionsChanged = m_regionsInvalidated && everHadLayout(); if (m_regionsInvalidated) { m_regionsInvalidated = false; m_hasValidRegions = false; m_regionsHaveUniformLogicalWidth = true; m_regionsHaveUniformLogicalHeight = true; m_regionRangeMap.clear(); LayoutUnit previousRegionLogicalWidth = 0; LayoutUnit previousRegionLogicalHeight = 0; if (hasRegions()) { for (RenderRegionList::iterator iter = m_regionList.begin(); iter != m_regionList.end(); ++iter) { RenderRegion* region = *iter; if (!region->isValid()) continue; ASSERT(!region->needsLayout()); region->deleteAllRenderBoxRegionInfo(); LayoutUnit regionLogicalWidth; LayoutUnit regionLogicalHeight; if (isHorizontalWritingMode()) { regionLogicalWidth = region->contentWidth(); regionLogicalHeight = region->contentHeight(); } else { regionLogicalWidth = region->contentHeight(); regionLogicalHeight = region->contentWidth(); } if (!m_hasValidRegions) m_hasValidRegions = true; else { if (m_regionsHaveUniformLogicalWidth && previousRegionLogicalWidth != regionLogicalWidth) m_regionsHaveUniformLogicalWidth = false; if (m_regionsHaveUniformLogicalHeight && previousRegionLogicalHeight != regionLogicalHeight) m_regionsHaveUniformLogicalHeight = false; } previousRegionLogicalWidth = regionLogicalWidth; } computeLogicalWidth(); // Called to get the maximum logical width for the region. LayoutUnit logicalHeight = 0; for (RenderRegionList::iterator iter = m_regionList.begin(); iter != m_regionList.end(); ++iter) { RenderRegion* region = *iter; if (!region->isValid()) continue; LayoutRect regionRect; if (isHorizontalWritingMode()) { regionRect = LayoutRect(style()->direction() == LTR ? zeroLayoutUnit : logicalWidth() - region->contentWidth(), logicalHeight, region->contentWidth(), region->contentHeight()); logicalHeight += regionRect.height(); } else { regionRect = LayoutRect(logicalHeight, style()->direction() == LTR ? zeroLayoutUnit : logicalWidth() - region->contentHeight(), region->contentWidth(), region->contentHeight()); logicalHeight += regionRect.width(); } region->setRegionRect(regionRect); } } } CurrentRenderFlowThreadMaintainer currentFlowThreadSetter(this); LayoutStateMaintainer statePusher(view(), this, regionsChanged); RenderBlock::layout(); statePusher.pop(); if (document()->hasListenerType(Document::REGIONLAYOUTUPDATE_LISTENER) && !m_regionLayoutUpdateEventTimer.isActive()) for (RenderRegionList::iterator iter = m_regionList.begin(); iter != m_regionList.end(); ++iter) { RenderRegion* region = *iter; if (region->shouldDispatchRegionLayoutUpdateEvent()) { // at least one region needs to dispatch the event m_regionLayoutUpdateEventTimer.startOneShot(0); break; } } }