diff -r 000000000000 -r 4f2f89ce4247 WebCore/rendering/RootInlineBox.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/rendering/RootInlineBox.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,164 @@
+/*
+ * Copyright (C) 2003, 2006, 2007, 2008 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef RootInlineBox_h
+#define RootInlineBox_h
+
+#include "BidiContext.h"
+#include "InlineFlowBox.h"
+
+namespace WebCore {
+
+class EllipsisBox;
+class HitTestResult;
+
+struct BidiStatus;
+struct GapRects;
+
+class RootInlineBox : public InlineFlowBox {
+public:
+    RootInlineBox(RenderObject* obj)
+        : InlineFlowBox(obj)
+        , m_lineBreakObj(0)
+        , m_lineBreakPos(0)
+        , m_lineTop(0)
+        , m_lineBottom(0)
+    {
+    }
+
+    virtual void destroy(RenderArena*);
+
+    virtual bool isRootInlineBox() const { return true; }
+
+    void detachEllipsisBox(RenderArena*);
+
+    RootInlineBox* nextRootBox() const { return static_cast<RootInlineBox*>(m_nextLineBox); }
+    RootInlineBox* prevRootBox() const { return static_cast<RootInlineBox*>(m_prevLineBox); }
+
+    virtual void adjustPosition(int dx, int dy);
+
+    int lineTop() const { return m_lineTop; }
+    int lineBottom() const { return m_lineBottom; }
+
+    int selectionTop() const;
+    int selectionBottom() const { return lineBottom(); }
+    int selectionHeight() const { return max(0, selectionBottom() - selectionTop()); }
+
+    int verticallyAlignBoxes(int heightOfBlock, GlyphOverflowAndFallbackFontsMap&);
+    void setLineTopBottomPositions(int top, int bottom);
+
+    virtual RenderLineBoxList* rendererLineBoxes() const;
+
+    RenderObject* lineBreakObj() const { return m_lineBreakObj; }
+    BidiStatus lineBreakBidiStatus() const;
+    void setLineBreakInfo(RenderObject*, unsigned breakPos, const BidiStatus&);
+
+    unsigned lineBreakPos() const { return m_lineBreakPos; }
+    void setLineBreakPos(unsigned p) { m_lineBreakPos = p; }
+
+    int blockHeight() const { return m_blockHeight; }
+    void setBlockHeight(int h) { m_blockHeight = h; }
+
+    bool endsWithBreak() const { return m_endsWithBreak; }
+    void setEndsWithBreak(bool b) { m_endsWithBreak = b; }
+
+    void childRemoved(InlineBox* box);
+
+    bool canAccommodateEllipsis(bool ltr, int blockEdge, int lineBoxEdge, int ellipsisWidth);
+    void placeEllipsis(const AtomicString& ellipsisStr, bool ltr, int blockLeftEdge, int blockRightEdge, int ellipsisWidth, InlineBox* markupBox = 0);
+    virtual int placeEllipsisBox(bool ltr, int blockLeftEdge, int blockRightEdge, int ellipsisWidth, bool& foundBox);
+
+    EllipsisBox* ellipsisBox() const;
+
+    void paintEllipsisBox(PaintInfo&, int tx, int ty) const;
+    bool hitTestEllipsisBox(HitTestResult&, int x, int y, int tx, int ty, HitTestAction, bool);
+
+    virtual void clearTruncation();
+
+#if PLATFORM(MAC)
+    void addHighlightOverflow();
+    void paintCustomHighlight(PaintInfo&, int tx, int ty, const AtomicString& highlightType);
+#endif
+
+    virtual void paint(PaintInfo&, int tx, int ty);
+    virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int, int, int, int);
+
+    bool hasSelectedChildren() const { return m_hasSelectedChildren; }
+    void setHasSelectedChildren(bool);
+
+    virtual RenderObject::SelectionState selectionState();
+    InlineBox* firstSelectedBox();
+    InlineBox* lastSelectedBox();
+
+    GapRects fillLineSelectionGap(int selTop, int selHeight, RenderBlock* rootBlock, int blockX, int blockY,
+                                  int tx, int ty, const PaintInfo*);
+
+    RenderBlock* block() const;
+
+    InlineBox* closestLeafChildForXPos(int x, bool onlyEditableLeaves = false);
+
+    Vector<RenderBox*>& floats()
+    {
+        ASSERT(!isDirty());
+        if (!m_floats)
+            m_floats= adoptPtr(new Vector<RenderBox*>);
+        return *m_floats;
+    }
+
+    Vector<RenderBox*>* floatsPtr() { ASSERT(!isDirty()); return m_floats.get(); }
+
+    virtual void extractLineBoxFromRenderObject();
+    virtual void attachLineBoxToRenderObject();
+    virtual void removeLineBoxFromRenderObject();
+
+private:
+    bool hasEllipsisBox() const { return m_hasEllipsisBoxOrHyphen; }
+    void setHasEllipsisBox(bool hasEllipsisBox) { m_hasEllipsisBoxOrHyphen = hasEllipsisBox; }
+
+    // Where this line ended.  The exact object and the position within that object are stored so that
+    // we can create an InlineIterator beginning just after the end of this line.
+    RenderObject* m_lineBreakObj;
+    unsigned m_lineBreakPos;
+    RefPtr<BidiContext> m_lineBreakContext;
+
+    int m_lineTop;
+    int m_lineBottom;
+
+    // Floats hanging off the line are pushed into this vector during layout. It is only
+    // good for as long as the line has not been marked dirty.
+    OwnPtr<Vector<RenderBox*> > m_floats;
+
+    // The height of the block at the end of this line.  This is where the next line starts.
+    int m_blockHeight;
+
+    WTF::Unicode::Direction m_lineBreakBidiStatusEor : 5;
+    WTF::Unicode::Direction m_lineBreakBidiStatusLastStrong : 5;
+    WTF::Unicode::Direction m_lineBreakBidiStatusLast : 5;
+};
+
+inline void RootInlineBox::setLineTopBottomPositions(int top, int bottom) 
+{ 
+    m_lineTop = top; 
+    m_lineBottom = bottom; 
+}
+
+} // namespace WebCore
+
+#endif // RootInlineBox_h