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6ee8440f27
This is the first step of getting rid of RenderLayer. Instead of walking the RenderLayer tree, wall the RenderObject tree and add any layers encountered to a vector to paint later. This patch just consolidates and move the code from RenderLayer to RenderBox and then changes the children painting to iterate over the vector. Therefore we walk the RenderObject tree. We still call out to RenderLayer in a bunch of places. A followup patch will get rid of those. R=esprehn@chromium.org Review URL: https://codereview.chromium.org/899753003
79 lines
4.0 KiB
C++
79 lines
4.0 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef SKY_ENGINE_CORE_RENDERING_RENDERPARAGRAPH_H_
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#define SKY_ENGINE_CORE_RENDERING_RENDERPARAGRAPH_H_
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#include "sky/engine/core/dom/ContainerNode.h"
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#include "sky/engine/core/rendering/RenderBlockFlow.h"
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namespace blink {
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class ContainerNode;
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class RenderParagraph final : public RenderBlockFlow {
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public:
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explicit RenderParagraph(ContainerNode*);
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virtual ~RenderParagraph();
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static RenderParagraph* createAnonymous(Document&);
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bool isRenderParagraph() const override { return true; }
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virtual RootInlineBox* lineAtIndex(int) const;
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virtual int lineCount(const RootInlineBox* = 0, bool* = 0) const;
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GapRects inlineSelectionGaps(RenderBlock* rootBlock, const LayoutPoint& rootBlockPhysicalPosition, const LayoutSize& offsetFromRootBlock,
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LayoutUnit& lastLogicalTop, LayoutUnit& lastLogicalLeft, LayoutUnit& lastLogicalRight, const PaintInfo*);
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protected:
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void layoutChildren(bool relayoutChildren, SubtreeLayoutScope&, LayoutUnit beforeEdge, LayoutUnit afterEdge) final;
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void addOverflowFromChildren() final;
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void simplifiedNormalFlowLayout() final;
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void paintChildren(PaintInfo&, const LayoutPoint&, Vector<RenderBox*>& layers) final;
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bool hitTestContents(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) final;
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virtual ETextAlign textAlignmentForLine(bool endsWithSoftBreak) const;
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void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const final;
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int firstLineBoxBaseline() const final;
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int lastLineBoxBaseline(LineDirectionMode) const final;
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private:
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virtual const char* renderName() const override;
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void markLinesDirtyInBlockRange(LayoutUnit logicalTop, LayoutUnit logicalBottom, RootInlineBox* highest = 0);
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InlineFlowBox* createLineBoxes(RenderObject*, const LineInfo&, InlineBox* childBox);
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RootInlineBox* constructLine(BidiRunList<BidiRun>&, const LineInfo&);
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void computeInlineDirectionPositionsForLine(RootInlineBox*, const LineInfo&, BidiRun* firstRun, BidiRun* trailingSpaceRun, bool reachedEnd, GlyphOverflowAndFallbackFontsMap&, VerticalPositionCache&, WordMeasurements&);
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BidiRun* computeInlineDirectionPositionsForSegment(RootInlineBox*, const LineInfo&, ETextAlign, float& logicalLeft,
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float& availableLogicalWidth, BidiRun* firstRun, BidiRun* trailingSpaceRun, GlyphOverflowAndFallbackFontsMap& textBoxDataMap, VerticalPositionCache&, WordMeasurements&);
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void computeBlockDirectionPositionsForLine(RootInlineBox*, BidiRun*, GlyphOverflowAndFallbackFontsMap&, VerticalPositionCache&);
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// Helper function for layoutChildren()
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RootInlineBox* createLineBoxesFromBidiRuns(unsigned bidiLevel, BidiRunList<BidiRun>&, const InlineIterator& end, LineInfo&, VerticalPositionCache&, BidiRun* trailingSpaceRun, WordMeasurements&);
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void layoutRunsAndFloats(LineLayoutState&);
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void layoutRunsAndFloatsInRange(LineLayoutState&, InlineBidiResolver&,
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const InlineIterator& cleanLineStart, const BidiStatus& cleanLineBidiStatus);
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void linkToEndLineIfNeeded(LineLayoutState&);
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void checkFloatsInCleanLine(RootInlineBox*, Vector<FloatWithRect>&, size_t& floatIndex, bool& encounteredNewFloat, bool& dirtiedByFloat);
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RootInlineBox* determineStartPosition(LineLayoutState&, InlineBidiResolver&);
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void determineEndPosition(LineLayoutState&, RootInlineBox* startBox, InlineIterator& cleanLineStart, BidiStatus& cleanLineBidiStatus);
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bool checkPaginationAndFloatsAtEndLine(LineLayoutState&);
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bool matchedEndLine(LineLayoutState&, const InlineBidiResolver&, const InlineIterator& endLineStart, const BidiStatus& endLineStatus);
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void deleteEllipsisLineBoxes();
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void checkLinesForTextOverflow();
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};
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DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderParagraph, isRenderParagraph());
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} // namespace blink
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#endif // SKY_ENGINE_CORE_RENDERING_RENDERPARAGRAPH_H_
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