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Side by Side Diff: Source/core/editing/Position.cpp

Issue 1300813002: Get rid of a redundant function Position::deprecatedEditingOffset() (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: 2015-08-18T17:24:05 Created 5 years, 4 months ago
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1 /* 1 /*
2 * Copyright (C) 2004, 2005, 2006, 2009 Apple Inc. All rights reserved. 2 * Copyright (C) 2004, 2005, 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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197 } 197 }
198 198
199 template <typename Strategy> 199 template <typename Strategy>
200 int PositionAlgorithm<Strategy>::computeEditingOffset() const 200 int PositionAlgorithm<Strategy>::computeEditingOffset() const
201 { 201 {
202 if (isAfterAnchorOrAfterChildren()) 202 if (isAfterAnchorOrAfterChildren())
203 return Strategy::lastOffsetForEditing(m_anchorNode.get()); 203 return Strategy::lastOffsetForEditing(m_anchorNode.get());
204 return m_offset; 204 return m_offset;
205 } 205 }
206 206
207 // TODO(yosin) We should replace all usage of |deprecatedEditingOffset()| by
208 // |computeEditingOffset()|.
209 template <typename Strategy>
210 int PositionAlgorithm<Strategy>::deprecatedEditingOffset() const
211 {
212 return computeEditingOffset();
213 }
214
215 template <typename Strategy> 207 template <typename Strategy>
216 Node* PositionAlgorithm<Strategy>::computeNodeBeforePosition() const 208 Node* PositionAlgorithm<Strategy>::computeNodeBeforePosition() const
217 { 209 {
218 if (!m_anchorNode) 210 if (!m_anchorNode)
219 return 0; 211 return 0;
220 switch (anchorType()) { 212 switch (anchorType()) {
221 case PositionAnchorType::BeforeChildren: 213 case PositionAnchorType::BeforeChildren:
222 return 0; 214 return 0;
223 case PositionAnchorType::AfterChildren: 215 case PositionAnchorType::AfterChildren:
224 return Strategy::lastChild(*m_anchorNode); 216 return Strategy::lastChild(*m_anchorNode);
(...skipping 96 matching lines...) Expand 10 before | Expand all | Expand 10 after
321 return comparePositions(*this, other); 313 return comparePositions(*this, other);
322 } 314 }
323 315
324 template <typename Strategy> 316 template <typename Strategy>
325 PositionAlgorithm<Strategy> PositionAlgorithm<Strategy>::previous(PositionMoveTy pe moveType) const 317 PositionAlgorithm<Strategy> PositionAlgorithm<Strategy>::previous(PositionMoveTy pe moveType) const
326 { 318 {
327 Node* node = anchorNode(); 319 Node* node = anchorNode();
328 if (!node) 320 if (!node)
329 return PositionAlgorithm<Strategy>(*this); 321 return PositionAlgorithm<Strategy>(*this);
330 322
331 int offset = deprecatedEditingOffset(); 323 int offset = computeEditingOffset();
332 324
333 if (offset > 0) { 325 if (offset > 0) {
334 if (editingIgnoresContent(node)) 326 if (editingIgnoresContent(node))
335 return beforeNode(node); 327 return beforeNode(node);
336 if (Node* child = Strategy::childAt(*node, offset - 1)) 328 if (Node* child = Strategy::childAt(*node, offset - 1))
337 return lastPositionInOrAfterNode(child); 329 return lastPositionInOrAfterNode(child);
338 330
339 // There are two reasons child might be 0: 331 // There are two reasons child might be 0:
340 // 1) The node is node like a text node that is not an element, and th erefore has no children. 332 // 1) The node is node like a text node that is not an element, and th erefore has no children.
341 // Going backward one character at a time is correct. 333 // Going backward one character at a time is correct.
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363 355
364 template <typename Strategy> 356 template <typename Strategy>
365 PositionAlgorithm<Strategy> PositionAlgorithm<Strategy>::next(PositionMoveType m oveType) const 357 PositionAlgorithm<Strategy> PositionAlgorithm<Strategy>::next(PositionMoveType m oveType) const
366 { 358 {
367 ASSERT(moveType != BackwardDeletion); 359 ASSERT(moveType != BackwardDeletion);
368 360
369 Node* node = anchorNode(); 361 Node* node = anchorNode();
370 if (!node) 362 if (!node)
371 return PositionAlgorithm<Strategy>(*this); 363 return PositionAlgorithm<Strategy>(*this);
372 364
373 int offset = deprecatedEditingOffset(); 365 int offset = computeEditingOffset();
374 366
375 if (Node* child = Strategy::childAt(*node, offset)) 367 if (Node* child = Strategy::childAt(*node, offset))
376 return firstPositionInOrBeforeNode(child); 368 return firstPositionInOrBeforeNode(child);
377 369
378 // TODO(yosin) We should use |Strategy::lastOffsetForEditing()| instead of 370 // TODO(yosin) We should use |Strategy::lastOffsetForEditing()| instead of
379 // DOM tree version. 371 // DOM tree version.
380 if (!Strategy::hasChildren(*node) && offset < EditingStrategy::lastOffsetFor Editing(node)) { 372 if (!Strategy::hasChildren(*node) && offset < EditingStrategy::lastOffsetFor Editing(node)) {
381 // There are two reasons child might be 0: 373 // There are two reasons child might be 0:
382 // 1) The node is node like a text node that is not an element, and th erefore has no children. 374 // 1) The node is node like a text node that is not an element, and th erefore has no children.
383 // Going forward one character at a time is correct. 375 // Going forward one character at a time is correct.
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1016 lastPosition = position; 1008 lastPosition = position;
1017 position = position.upstream(CanCrossEditingBoundary); 1009 position = position.upstream(CanCrossEditingBoundary);
1018 } 1010 }
1019 return position; 1011 return position;
1020 } 1012 }
1021 1013
1022 template <typename Strategy> 1014 template <typename Strategy>
1023 InlineBoxPosition PositionAlgorithm<Strategy>::computeInlineBoxPosition(EAffinit y affinity, TextDirection primaryDirection) const 1015 InlineBoxPosition PositionAlgorithm<Strategy>::computeInlineBoxPosition(EAffinit y affinity, TextDirection primaryDirection) const
1024 { 1016 {
1025 InlineBox* inlineBox = nullptr; 1017 InlineBox* inlineBox = nullptr;
1026 int caretOffset = deprecatedEditingOffset(); 1018 int caretOffset = computeEditingOffset();
1027 LayoutObject* layoutObject = m_anchorNode->isShadowRoot() ? toShadowRoot(m_a nchorNode)->host()->layoutObject() : m_anchorNode->layoutObject(); 1019 LayoutObject* layoutObject = m_anchorNode->isShadowRoot() ? toShadowRoot(m_a nchorNode)->host()->layoutObject() : m_anchorNode->layoutObject();
1028 1020
1029 if (!layoutObject->isText()) { 1021 if (!layoutObject->isText()) {
1030 inlineBox = 0; 1022 inlineBox = 0;
1031 if (canHaveChildrenForEditing(anchorNode()) && layoutObject->isLayoutBlo ckFlow() && hasRenderedNonAnonymousDescendantsWithHeight(layoutObject)) { 1023 if (canHaveChildrenForEditing(anchorNode()) && layoutObject->isLayoutBlo ckFlow() && hasRenderedNonAnonymousDescendantsWithHeight(layoutObject)) {
1032 // Try a visually equivalent position with possibly opposite 1024 // Try a visually equivalent position with possibly opposite
1033 // editability. This helps in case |this| is in an editable block 1025 // editability. This helps in case |this| is in an editable block
1034 // but surrounded by non-editable positions. It acts to negate the 1026 // but surrounded by non-editable positions. It acts to negate the
1035 // logic at the beginning of LayoutObject::createVisiblePosition(). 1027 // logic at the beginning of LayoutObject::createVisiblePosition().
1036 PositionAlgorithm<Strategy> thisPosition = PositionAlgorithm<Strateg y>(*this); 1028 PositionAlgorithm<Strategy> thisPosition = PositionAlgorithm<Strateg y>(*this);
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1361 1353
1362 void showTree(const blink::Position* pos) 1354 void showTree(const blink::Position* pos)
1363 { 1355 {
1364 if (pos) 1356 if (pos)
1365 pos->showTreeForThis(); 1357 pos->showTreeForThis();
1366 else 1358 else
1367 fprintf(stderr, "Cannot showTree for (nil)\n"); 1359 fprintf(stderr, "Cannot showTree for (nil)\n");
1368 } 1360 }
1369 1361
1370 #endif 1362 #endif
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