Split more Paragraph-specific code from RenderBlock into RenderParagraph

sky/engine/core/rendering/RenderParagraph.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef SKY_ENGINE_CORE_RENDERING_RENDERPARAGRAPH_H_
 #define SKY_ENGINE_CORE_RENDERING_RENDERPARAGRAPH_H_
 
 #include "sky/engine/core/dom/ContainerNode.h"
 #include "sky/engine/core/rendering/RenderBlockFlow.h"
 
 namespace blink {
 
 class ContainerNode;
 
 class RenderParagraph final : public RenderBlockFlow {
 public:
     explicit RenderParagraph(ContainerNode*);
     virtual ~RenderParagraph();
 
     static RenderParagraph* createAnonymous(Document&);
 
     bool isRenderParagraph() const override { return true; }
 
+    virtual RootInlineBox* lineAtIndex(int) const;
+    virtual int lineCount(const RootInlineBox* = 0, bool* = 0) const;
+
+    GapRects inlineSelectionGaps(RenderBlock* rootBlock, const LayoutPoint& rootBlockPhysicalPosition, const LayoutSize& offsetFromRootBlock,
+        LayoutUnit& lastLogicalTop, LayoutUnit& lastLogicalLeft, LayoutUnit& lastLogicalRight, const PaintInfo*);
+
 protected:
     void layoutChildren(bool relayoutChildren, SubtreeLayoutScope&, LayoutUnit& paintInvalidationLogicalTop, LayoutUnit& paintInvalidationLogicalBottom, LayoutUnit beforeEdge, LayoutUnit afterEdge) final;
 
     void addOverflowFromChildren() final;
 
     void simplifiedNormalFlowLayout() final;
 
     void paintContents(PaintInfo&, const LayoutPoint&) final;
 
     bool hitTestContents(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) final;
 
     virtual ETextAlign textAlignmentForLine(bool endsWithSoftBreak) const;
 
     void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const final;
 
+    int firstLineBoxBaseline() const final;
+    int lastLineBoxBaseline(LineDirectionMode) const final;
+
 private:
     void markLinesDirtyInBlockRange(LayoutUnit logicalTop, LayoutUnit logicalBottom, RootInlineBox* highest = 0);
 
     InlineFlowBox* createLineBoxes(RenderObject*, const LineInfo&, InlineBox* childBox);
     RootInlineBox* constructLine(BidiRunList<BidiRun>&, const LineInfo&);
     void computeInlineDirectionPositionsForLine(RootInlineBox*, const LineInfo&, BidiRun* firstRun, BidiRun* trailingSpaceRun, bool reachedEnd, GlyphOverflowAndFallbackFontsMap&, VerticalPositionCache&, WordMeasurements&);
     BidiRun* computeInlineDirectionPositionsForSegment(RootInlineBox*, const LineInfo&, ETextAlign, float& logicalLeft,
         float& availableLogicalWidth, BidiRun* firstRun, BidiRun* trailingSpaceRun, GlyphOverflowAndFallbackFontsMap& textBoxDataMap, VerticalPositionCache&, WordMeasurements&);
     void computeBlockDirectionPositionsForLine(RootInlineBox*, BidiRun*, GlyphOverflowAndFallbackFontsMap&, VerticalPositionCache&);
     // Helper function for layoutChildren()
@@ skipping 10 matching lines @@
     bool matchedEndLine(LineLayoutState&, const InlineBidiResolver&, const InlineIterator& endLineStart, const BidiStatus& endLineStatus);
     void deleteEllipsisLineBoxes();
     void checkLinesForTextOverflow();
 };
 
 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderParagraph, isRenderParagraph());
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_CORE_RENDERING_RENDERPARAGRAPH_H_