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Side by Side Diff: Source/core/editing/RenderedPosition.h

Issue 454643002: Route selection bounds updates through WebLayerTreeView (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: rebase Created 6 years, 3 months ago
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1 /* 1 /*
2 * Copyright (C) 2011 Google Inc. All rights reserved. 2 * Copyright (C) 2011 Google Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are 5 * modification, are permitted provided that the following conditions are
6 * met: 6 * met:
7 * 7 *
8 * * Redistributions of source code must retain the above copyright 8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above 10 * * Redistributions in binary form must reproduce the above
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29 */ 29 */
30 30
31 #ifndef RenderedPosition_h 31 #ifndef RenderedPosition_h
32 #define RenderedPosition_h 32 #define RenderedPosition_h
33 33
34 #include "core/editing/TextAffinity.h" 34 #include "core/editing/TextAffinity.h"
35 #include "core/rendering/InlineBox.h" 35 #include "core/rendering/InlineBox.h"
36 36
37 namespace blink { 37 namespace blink {
38 38
39 class GraphicsLayer;
39 class LayoutUnit; 40 class LayoutUnit;
40 class Position; 41 class Position;
41 class RenderObject; 42 class RenderObject;
42 class VisiblePosition; 43 class VisiblePosition;
44 struct CompositedSelectionBound;
43 45
44 class RenderedPosition { 46 class RenderedPosition {
45 public: 47 public:
46 RenderedPosition(); 48 RenderedPosition();
47 explicit RenderedPosition(const VisiblePosition&); 49 explicit RenderedPosition(const VisiblePosition&);
48 explicit RenderedPosition(const Position&, EAffinity); 50 explicit RenderedPosition(const Position&, EAffinity);
49 bool isEquivalent(const RenderedPosition&) const; 51 bool isEquivalent(const RenderedPosition&) const;
50 52
51 bool isNull() const { return !m_renderer; } 53 bool isNull() const { return !m_renderer; }
52 RootInlineBox* rootBox() { return m_inlineBox ? &m_inlineBox->root() : 0; } 54 RootInlineBox* rootBox() { return m_inlineBox ? &m_inlineBox->root() : 0; }
53 55
54 unsigned char bidiLevelOnLeft() const; 56 unsigned char bidiLevelOnLeft() const;
55 unsigned char bidiLevelOnRight() const; 57 unsigned char bidiLevelOnRight() const;
56 RenderedPosition leftBoundaryOfBidiRun(unsigned char bidiLevelOfRun); 58 RenderedPosition leftBoundaryOfBidiRun(unsigned char bidiLevelOfRun);
57 RenderedPosition rightBoundaryOfBidiRun(unsigned char bidiLevelOfRun); 59 RenderedPosition rightBoundaryOfBidiRun(unsigned char bidiLevelOfRun);
58 60
59 enum ShouldMatchBidiLevel { MatchBidiLevel, IgnoreBidiLevel }; 61 enum ShouldMatchBidiLevel { MatchBidiLevel, IgnoreBidiLevel };
60 bool atLeftBoundaryOfBidiRun() const { return atLeftBoundaryOfBidiRun(Ignore BidiLevel, 0); } 62 bool atLeftBoundaryOfBidiRun() const { return atLeftBoundaryOfBidiRun(Ignore BidiLevel, 0); }
61 bool atRightBoundaryOfBidiRun() const { return atRightBoundaryOfBidiRun(Igno reBidiLevel, 0); } 63 bool atRightBoundaryOfBidiRun() const { return atRightBoundaryOfBidiRun(Igno reBidiLevel, 0); }
62 // The following two functions return true only if the current position is a t the end of the bidi run 64 // The following two functions return true only if the current position is a t the end of the bidi run
63 // of the specified bidi embedding level. 65 // of the specified bidi embedding level.
64 bool atLeftBoundaryOfBidiRun(unsigned char bidiLevelOfRun) const { return at LeftBoundaryOfBidiRun(MatchBidiLevel, bidiLevelOfRun); } 66 bool atLeftBoundaryOfBidiRun(unsigned char bidiLevelOfRun) const { return at LeftBoundaryOfBidiRun(MatchBidiLevel, bidiLevelOfRun); }
65 bool atRightBoundaryOfBidiRun(unsigned char bidiLevelOfRun) const { return a tRightBoundaryOfBidiRun(MatchBidiLevel, bidiLevelOfRun); } 67 bool atRightBoundaryOfBidiRun(unsigned char bidiLevelOfRun) const { return a tRightBoundaryOfBidiRun(MatchBidiLevel, bidiLevelOfRun); }
66 68
67 Position positionAtLeftBoundaryOfBiDiRun() const; 69 Position positionAtLeftBoundaryOfBiDiRun() const;
68 Position positionAtRightBoundaryOfBiDiRun() const; 70 Position positionAtRightBoundaryOfBiDiRun() const;
69 71
70 IntRect absoluteRect(LayoutUnit* extraWidthToEndOfLine = 0) const; 72 IntRect absoluteRect(LayoutUnit* extraWidthToEndOfLine = 0) const;
73 void positionInGraphicsLayerBacking(CompositedSelectionBound&) const;
71 74
72 private: 75 private:
73 bool operator==(const RenderedPosition&) const { return false; } 76 bool operator==(const RenderedPosition&) const { return false; }
74 explicit RenderedPosition(RenderObject*, InlineBox*, int offset); 77 explicit RenderedPosition(RenderObject*, InlineBox*, int offset);
75 78
76 InlineBox* prevLeafChild() const; 79 InlineBox* prevLeafChild() const;
77 InlineBox* nextLeafChild() const; 80 InlineBox* nextLeafChild() const;
78 bool atLeftmostOffsetInBox() const { return m_inlineBox && m_offset == m_inl ineBox->caretLeftmostOffset(); } 81 bool atLeftmostOffsetInBox() const { return m_inlineBox && m_offset == m_inl ineBox->caretLeftmostOffset(); }
79 bool atRightmostOffsetInBox() const { return m_inlineBox && m_offset == m_in lineBox->caretRightmostOffset(); } 82 bool atRightmostOffsetInBox() const { return m_inlineBox && m_offset == m_in lineBox->caretRightmostOffset(); }
80 bool atLeftBoundaryOfBidiRun(ShouldMatchBidiLevel, unsigned char bidiLevelOf Run) const; 83 bool atLeftBoundaryOfBidiRun(ShouldMatchBidiLevel, unsigned char bidiLevelOf Run) const;
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107 , m_prevLeafChild(uncachedInlineBox()) 110 , m_prevLeafChild(uncachedInlineBox())
108 , m_nextLeafChild(uncachedInlineBox()) 111 , m_nextLeafChild(uncachedInlineBox())
109 { 112 {
110 } 113 }
111 114
112 bool renderObjectContainsPosition(RenderObject*, const Position&); 115 bool renderObjectContainsPosition(RenderObject*, const Position&);
113 116
114 }; 117 };
115 118
116 #endif // RenderedPosition_h 119 #endif // RenderedPosition_h
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