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| 1 /* | 1 /* |
| 2 * Copyright (C) 2004, 2006, 2009 Apple Inc. All rights reserved. | 2 * Copyright (C) 2004, 2006, 2009 Apple 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 | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
| (...skipping 15 matching lines...) Expand all Loading... |
| 26 #ifndef SimplifiedBackwardsTextIterator_h | 26 #ifndef SimplifiedBackwardsTextIterator_h |
| 27 #define SimplifiedBackwardsTextIterator_h | 27 #define SimplifiedBackwardsTextIterator_h |
| 28 | 28 |
| 29 #include "core/dom/Range.h" | 29 #include "core/dom/Range.h" |
| 30 #include "core/editing/iterators/BitStack.h" | 30 #include "core/editing/iterators/BitStack.h" |
| 31 #include "core/editing/iterators/TextIteratorFlags.h" | 31 #include "core/editing/iterators/TextIteratorFlags.h" |
| 32 #include "platform/heap/Heap.h" | 32 #include "platform/heap/Heap.h" |
| 33 | 33 |
| 34 namespace blink { | 34 namespace blink { |
| 35 | 35 |
| 36 class RenderText; | 36 class LayoutText; |
| 37 class RenderTextFragment; | 37 class LayoutTextFragment; |
| 38 | 38 |
| 39 // Iterates through the DOM range, returning all the text, and 0-length boundari
es | 39 // Iterates through the DOM range, returning all the text, and 0-length boundari
es |
| 40 // at points where replaced elements break up the text flow. The text comes back
in | 40 // at points where replaced elements break up the text flow. The text comes back
in |
| 41 // chunks so as to optimize for performance of the iteration. | 41 // chunks so as to optimize for performance of the iteration. |
| 42 class SimplifiedBackwardsTextIterator { | 42 class SimplifiedBackwardsTextIterator { |
| 43 STACK_ALLOCATED(); | 43 STACK_ALLOCATED(); |
| 44 public: | 44 public: |
| 45 explicit SimplifiedBackwardsTextIterator(const Range*, TextIteratorBehaviorF
lags = TextIteratorDefaultBehavior); | 45 explicit SimplifiedBackwardsTextIterator(const Range*, TextIteratorBehaviorF
lags = TextIteratorDefaultBehavior); |
| 46 SimplifiedBackwardsTextIterator(const Position& start, const Position& end,
TextIteratorBehaviorFlags = TextIteratorDefaultBehavior); | 46 SimplifiedBackwardsTextIterator(const Position& start, const Position& end,
TextIteratorBehaviorFlags = TextIteratorDefaultBehavior); |
| 47 | 47 |
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| 65 | 65 |
| 66 Node* startContainer() const; | 66 Node* startContainer() const; |
| 67 int endOffset() const; | 67 int endOffset() const; |
| 68 Position startPosition() const; | 68 Position startPosition() const; |
| 69 Position endPosition() const; | 69 Position endPosition() const; |
| 70 | 70 |
| 71 private: | 71 private: |
| 72 void init(Node* startNode, Node* endNode, int startOffset, int endOffset); | 72 void init(Node* startNode, Node* endNode, int startOffset, int endOffset); |
| 73 void exitNode(); | 73 void exitNode(); |
| 74 bool handleTextNode(); | 74 bool handleTextNode(); |
| 75 RenderText* handleFirstLetter(int& startOffset, int& offsetInNode); | 75 LayoutText* handleFirstLetter(int& startOffset, int& offsetInNode); |
| 76 bool handleReplacedElement(); | 76 bool handleReplacedElement(); |
| 77 bool handleNonTextNode(); | 77 bool handleNonTextNode(); |
| 78 void emitCharacter(UChar, Node*, int startOffset, int endOffset); | 78 void emitCharacter(UChar, Node*, int startOffset, int endOffset); |
| 79 bool advanceRespectingRange(Node*); | 79 bool advanceRespectingRange(Node*); |
| 80 | 80 |
| 81 // Current position, not necessarily of the text being returned, but positio
n | 81 // Current position, not necessarily of the text being returned, but positio
n |
| 82 // as we walk through the DOM tree. | 82 // as we walk through the DOM tree. |
| 83 RawPtrWillBeMember<Node> m_node; | 83 RawPtrWillBeMember<Node> m_node; |
| 84 int m_offset; | 84 int m_offset; |
| 85 bool m_handledNode; | 85 bool m_handledNode; |
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| 117 // Used when m_stopsOnFormControls is set to determine if the iterator shoul
d keep advancing. | 117 // Used when m_stopsOnFormControls is set to determine if the iterator shoul
d keep advancing. |
| 118 bool m_shouldStop; | 118 bool m_shouldStop; |
| 119 | 119 |
| 120 // Used in pasting inside password field. | 120 // Used in pasting inside password field. |
| 121 bool m_emitsOriginalText; | 121 bool m_emitsOriginalText; |
| 122 }; | 122 }; |
| 123 | 123 |
| 124 } // namespace blink | 124 } // namespace blink |
| 125 | 125 |
| 126 #endif // SimplifiedBackwardsTextIterator_h | 126 #endif // SimplifiedBackwardsTextIterator_h |
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