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1 /* | 1 /* |
2 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserv
ed. | 2 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserv
ed. |
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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119 PositionType prev = canonicalizeCandidate(previousCandidate(position)); | 119 PositionType prev = canonicalizeCandidate(previousCandidate(position)); |
120 Node* nextNode = next.anchorNode(); | 120 Node* nextNode = next.anchorNode(); |
121 Node* prevNode = prev.anchorNode(); | 121 Node* prevNode = prev.anchorNode(); |
122 | 122 |
123 // The new position must be in the same editable element. Enforce that | 123 // The new position must be in the same editable element. Enforce that |
124 // first. Unless the descent is from a non-editable html element to an | 124 // first. Unless the descent is from a non-editable html element to an |
125 // editable body. | 125 // editable body. |
126 if (node && node->document().documentElement() == node && !node->hasEditable
Style() && node->document().body() && node->document().body()->hasEditableStyle(
)) | 126 if (node && node->document().documentElement() == node && !node->hasEditable
Style() && node->document().body() && node->document().body()->hasEditableStyle(
)) |
127 return next.isNotNull() ? next : prev; | 127 return next.isNotNull() ? next : prev; |
128 | 128 |
129 Element* editingRoot = editableRootElementForPosition(position); | 129 Element* editingRoot = rootEditableElementOf(position); |
130 | 130 |
131 // If the html element is editable, descending into its body will look like | 131 // If the html element is editable, descending into its body will look like |
132 // a descent from non-editable to editable content since | 132 // a descent from non-editable to editable content since |
133 // |rootEditableElementOf()| always stops at the body. | 133 // |rootEditableElementOf()| always stops at the body. |
134 if ((editingRoot && editingRoot->document().documentElement() == editingRoot
) || position.anchorNode()->isDocumentNode()) | 134 if ((editingRoot && editingRoot->document().documentElement() == editingRoot
) || position.anchorNode()->isDocumentNode()) |
135 return next.isNotNull() ? next : prev; | 135 return next.isNotNull() ? next : prev; |
136 | 136 |
137 bool prevIsInSameEditableElement = prevNode && editableRootElementForPositio
n(prev) == editingRoot; | 137 bool prevIsInSameEditableElement = prevNode && rootEditableElementOf(prev) =
= editingRoot; |
138 bool nextIsInSameEditableElement = nextNode && editableRootElementForPositio
n(next) == editingRoot; | 138 bool nextIsInSameEditableElement = nextNode && rootEditableElementOf(next) =
= editingRoot; |
139 if (prevIsInSameEditableElement && !nextIsInSameEditableElement) | 139 if (prevIsInSameEditableElement && !nextIsInSameEditableElement) |
140 return prev; | 140 return prev; |
141 | 141 |
142 if (nextIsInSameEditableElement && !prevIsInSameEditableElement) | 142 if (nextIsInSameEditableElement && !prevIsInSameEditableElement) |
143 return next; | 143 return next; |
144 | 144 |
145 if (!nextIsInSameEditableElement && !prevIsInSameEditableElement) | 145 if (!nextIsInSameEditableElement && !prevIsInSameEditableElement) |
146 return PositionType(); | 146 return PositionType(); |
147 | 147 |
148 // The new position should be in the same block flow element. Favor that. | 148 // The new position should be in the same block flow element. Favor that. |
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3327 { | 3327 { |
3328 return previousPositionOfAlgorithm<EditingStrategy>(visiblePosition, rule); | 3328 return previousPositionOfAlgorithm<EditingStrategy>(visiblePosition, rule); |
3329 } | 3329 } |
3330 | 3330 |
3331 VisiblePositionInComposedTree previousPositionOf(const VisiblePositionInComposed
Tree& visiblePosition, EditingBoundaryCrossingRule rule) | 3331 VisiblePositionInComposedTree previousPositionOf(const VisiblePositionInComposed
Tree& visiblePosition, EditingBoundaryCrossingRule rule) |
3332 { | 3332 { |
3333 return previousPositionOfAlgorithm<EditingInComposedTreeStrategy>(visiblePos
ition, rule); | 3333 return previousPositionOfAlgorithm<EditingInComposedTreeStrategy>(visiblePos
ition, rule); |
3334 } | 3334 } |
3335 | 3335 |
3336 } // namespace blink | 3336 } // namespace blink |
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