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Side by Side Diff: third_party/WebKit/Source/core/editing/iterators/SimplifiedBackwardsTextIterator.h

Issue 2397033002: Reflow comments in //third_party/WebKit/Source/core/editing/iterators (Closed)
Patch Set: Created 4 years, 2 months ago
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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
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30 #include "core/editing/iterators/BackwardsTextBuffer.h" 30 #include "core/editing/iterators/BackwardsTextBuffer.h"
31 #include "core/editing/iterators/FullyClippedStateStack.h" 31 #include "core/editing/iterators/FullyClippedStateStack.h"
32 #include "core/editing/iterators/TextIteratorFlags.h" 32 #include "core/editing/iterators/TextIteratorFlags.h"
33 #include "platform/heap/Heap.h" 33 #include "platform/heap/Heap.h"
34 34
35 namespace blink { 35 namespace blink {
36 36
37 class LayoutText; 37 class LayoutText;
38 class LayoutTextFragment; 38 class LayoutTextFragment;
39 39
40 // Iterates through the DOM range, returning all the text, and 0-length boundari es 40 // Iterates through the DOM range, returning all the text, and 0-length
41 // at points where replaced elements break up the text flow. The text comes back in 41 // boundaries at points where replaced elements break up the text flow. The text
42 // chunks so as to optimize for performance of the iteration. 42 // comes back in chunks so as to optimize for performance of the iteration.
43 template <typename Strategy> 43 template <typename Strategy>
44 class CORE_TEMPLATE_CLASS_EXPORT SimplifiedBackwardsTextIteratorAlgorithm { 44 class CORE_TEMPLATE_CLASS_EXPORT SimplifiedBackwardsTextIteratorAlgorithm {
45 STACK_ALLOCATED(); 45 STACK_ALLOCATED();
46 46
47 public: 47 public:
48 SimplifiedBackwardsTextIteratorAlgorithm( 48 SimplifiedBackwardsTextIteratorAlgorithm(
49 const PositionTemplate<Strategy>& start, 49 const PositionTemplate<Strategy>& start,
50 const PositionTemplate<Strategy>& end, 50 const PositionTemplate<Strategy>& end,
51 TextIteratorBehaviorFlags = TextIteratorDefaultBehavior); 51 TextIteratorBehaviorFlags = TextIteratorDefaultBehavior);
52 52
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105 bool m_handledChildren; 105 bool m_handledChildren;
106 FullyClippedStateStackAlgorithm<Strategy> m_fullyClippedStack; 106 FullyClippedStateStackAlgorithm<Strategy> m_fullyClippedStack;
107 107
108 // End of the range. 108 // End of the range.
109 Member<Node> m_startNode; 109 Member<Node> m_startNode;
110 int m_startOffset; 110 int m_startOffset;
111 // Start of the range. 111 // Start of the range.
112 Member<Node> m_endNode; 112 Member<Node> m_endNode;
113 int m_endOffset; 113 int m_endOffset;
114 114
115 // The current text and its position, in the form to be returned from the iter ator. 115 // The current text and its position, in the form to be returned from the
116 // iterator.
116 Member<Node> m_positionNode; 117 Member<Node> m_positionNode;
117 int m_positionStartOffset; 118 int m_positionStartOffset;
118 int m_positionEndOffset; 119 int m_positionEndOffset;
119 120
120 String 121 // We're interested in the range [m_textOffset, m_textOffset + m_textLength)
121 m_textContainer; // We're interested in the range [m_textOffset, m_textOf fset + m_textLength) of m_textContainer. 122 // of m_textContainer.
123 String m_textContainer;
122 int m_textOffset; 124 int m_textOffset;
123 int m_textLength; 125 int m_textLength;
124 126
125 // Used for whitespace characters that aren't in the DOM, so we can point at t hem. 127 // Used for whitespace characters that aren't in the DOM, so we can point at
128 // them.
126 UChar m_singleCharacterBuffer; 129 UChar m_singleCharacterBuffer;
127 130
128 // Whether m_node has advanced beyond the iteration range (i.e. m_startNode). 131 // Whether m_node has advanced beyond the iteration range (i.e. m_startNode).
129 bool m_havePassedStartNode; 132 bool m_havePassedStartNode;
130 133
131 // Should handle first-letter layoutObject in the next call to handleTextNode. 134 // Should handle first-letter layoutObject in the next call to handleTextNode.
132 bool m_shouldHandleFirstLetter; 135 bool m_shouldHandleFirstLetter;
133 136
134 // Used when the iteration should stop if form controls are reached. 137 // Used when the iteration should stop if form controls are reached.
135 bool m_stopsOnFormControls; 138 bool m_stopsOnFormControls;
136 139
137 // Used when m_stopsOnFormControls is set to determine if the iterator should keep advancing. 140 // Used when m_stopsOnFormControls is set to determine if the iterator should
141 // keep advancing.
138 bool m_shouldStop; 142 bool m_shouldStop;
139 143
140 // Used in pasting inside password field. 144 // Used in pasting inside password field.
141 bool m_emitsOriginalText; 145 bool m_emitsOriginalText;
142 }; 146 };
143 147
144 extern template class CORE_EXTERN_TEMPLATE_EXPORT 148 extern template class CORE_EXTERN_TEMPLATE_EXPORT
145 SimplifiedBackwardsTextIteratorAlgorithm<EditingStrategy>; 149 SimplifiedBackwardsTextIteratorAlgorithm<EditingStrategy>;
146 extern template class CORE_EXTERN_TEMPLATE_EXPORT 150 extern template class CORE_EXTERN_TEMPLATE_EXPORT
147 SimplifiedBackwardsTextIteratorAlgorithm<EditingInFlatTreeStrategy>; 151 SimplifiedBackwardsTextIteratorAlgorithm<EditingInFlatTreeStrategy>;
148 152
149 using SimplifiedBackwardsTextIterator = 153 using SimplifiedBackwardsTextIterator =
150 SimplifiedBackwardsTextIteratorAlgorithm<EditingStrategy>; 154 SimplifiedBackwardsTextIteratorAlgorithm<EditingStrategy>;
151 155
152 } // namespace blink 156 } // namespace blink
153 157
154 #endif // SimplifiedBackwardsTextIterator_h 158 #endif // SimplifiedBackwardsTextIterator_h
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