Delete RenderBlockFlow.

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"
+#include "sky/engine/core/rendering/RenderBlock.h"
+#include "sky/engine/core/rendering/line/TrailingObjects.h"
 
 namespace blink {
 
+struct BidiRun;
 class ContainerNode;
+// class InlineBidiResolver;
+class InlineIterator;
 
-class RenderParagraph final : public RenderBlockFlow {
+class RenderParagraph final : public RenderBlock {
 public:
     explicit RenderParagraph(ContainerNode*);
     virtual ~RenderParagraph();
 
     static RenderParagraph* createAnonymous(Document&);
 
-    bool isRenderParagraph() const override { return true; }
+    bool isRenderParagraph() const final { return true; }
+
+    void layout() final;
+
+    LayoutUnit logicalRightOffsetForLine(bool shouldIndentText) const
+    {
+        LayoutUnit right = logicalRightOffsetForContent();
+        if (shouldIndentText && !style()->isLeftToRightDirection())
+            right -= textIndentOffset();
+        return right;
+    }
+    LayoutUnit logicalLeftOffsetForLine(bool shouldIndentText) const
+    {
+        LayoutUnit left = logicalLeftOffsetForContent();
+        if (shouldIndentText && style()->isLeftToRightDirection())
+            left += textIndentOffset();
+        return left;
+    }
+
+    LayoutUnit logicalLeftSelectionOffset(RenderBlock* rootBlock, LayoutUnit position) final;
+    LayoutUnit logicalRightSelectionOffset(RenderBlock* rootBlock, LayoutUnit position) final;
 
     virtual RootInlineBox* lineAtIndex(int) const;
     virtual int lineCount(const RootInlineBox* = 0, bool* = 0) const;
 
+    void deleteLineBoxTree() final;
+
     GapRects inlineSelectionGaps(RenderBlock* rootBlock, const LayoutPoint& rootBlockPhysicalPosition, const LayoutSize& offsetFromRootBlock,
         LayoutUnit& lastLogicalTop, LayoutUnit& lastLogicalLeft, LayoutUnit& lastLogicalRight, const PaintInfo*);
 
+    static bool shouldSkipCreatingRunsForObject(RenderObject* obj)
+    {
+        return obj->isOutOfFlowPositioned() && !obj->style()->isOriginalDisplayInlineType() && !obj->container()->isRenderInline();
+    }
+
+    // TODO(ojan): Remove the need for these.
+    using RenderBlock::lineBoxes;
+    using RenderBlock::firstLineBox;
+    using RenderBlock::lastRootBox;
+
+    struct FloatWithRect {
+        FloatWithRect(RenderBox* f)
+            : object(f)
+            , rect(LayoutRect(f->x() - f->marginLeft(), f->y() - f->marginTop(), f->width() + f->marginWidth(), f->height() + f->marginHeight()))
+            , everHadLayout(f->everHadLayout())
+        {
+        }
+
+        RenderBox* object;
+        LayoutRect rect;
+        bool everHadLayout;
+    };
+
 protected:
-    void layoutChildren(bool relayoutChildren, SubtreeLayoutScope&, LayoutUnit beforeEdge, LayoutUnit afterEdge) final;
-
     void addOverflowFromChildren() final;
 
     void simplifiedNormalFlowLayout() final;
 
     void paintChildren(PaintInfo&, const LayoutPoint&, Vector<RenderBox*>& layers) final;
 
     bool hitTestContents(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset) 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:
     virtual const char* renderName() const override;
 
+    void layoutChildren(bool relayoutChildren, SubtreeLayoutScope&, LayoutUnit beforeEdge, LayoutUnit afterEdge);
+
     void markLinesDirtyInBlockRange(LayoutUnit logicalTop, LayoutUnit logicalBottom, RootInlineBox* highest = 0);
 
+    void updateLogicalWidthForAlignment(const ETextAlign&, const RootInlineBox*, BidiRun* trailingSpaceRun, float& logicalLeft, float& totalLogicalWidth, float& availableLogicalWidth, unsigned expansionOpportunityCount);
+
+    RootInlineBox* createAndAppendRootInlineBox();
+    RootInlineBox* createRootInlineBox();
     InlineFlowBox* createLineBoxes(RenderObject*, const LineInfo&, InlineBox* childBox);
+    InlineBox* createInlineBoxForRenderer(RenderObject*, bool isRootLineBox, bool isOnlyRun = false);
     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()
     RootInlineBox* createLineBoxesFromBidiRuns(unsigned bidiLevel, BidiRunList<BidiRun>&, const InlineIterator& end, LineInfo&, VerticalPositionCache&, BidiRun* trailingSpaceRun, WordMeasurements&);
     void layoutRunsAndFloats(LineLayoutState&);
     void layoutRunsAndFloatsInRange(LineLayoutState&, InlineBidiResolver&,
         const InlineIterator& cleanLineStart, const BidiStatus& cleanLineBidiStatus);
     void linkToEndLineIfNeeded(LineLayoutState&);
     void checkFloatsInCleanLine(RootInlineBox*, Vector<FloatWithRect>&, size_t& floatIndex, bool& encounteredNewFloat, bool& dirtiedByFloat);
     RootInlineBox* determineStartPosition(LineLayoutState&, InlineBidiResolver&);
     void determineEndPosition(LineLayoutState&, RootInlineBox* startBox, InlineIterator& cleanLineStart, BidiStatus& cleanLineBidiStatus);
     bool checkPaginationAndFloatsAtEndLine(LineLayoutState&);
     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_