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| 1 /* | |
| 2 * Copyright (C) 2005, 2006 Apple Computer, Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #include "config.h" | |
| 27 #include "core/editing/InsertParagraphSeparatorCommand.h" | |
| 28 | |
| 29 #include "core/HTMLNames.h" | |
| 30 #include "core/dom/Document.h" | |
| 31 #include "core/dom/NodeTraversal.h" | |
| 32 #include "core/dom/Text.h" | |
| 33 #include "core/editing/EditingStyle.h" | |
| 34 #include "core/editing/EditingUtilities.h" | |
| 35 #include "core/editing/InsertLineBreakCommand.h" | |
| 36 #include "core/editing/VisibleUnits.h" | |
| 37 #include "core/html/HTMLBRElement.h" | |
| 38 #include "core/html/HTMLElement.h" | |
| 39 #include "core/html/HTMLQuoteElement.h" | |
| 40 #include "core/layout/LayoutObject.h" | |
| 41 #include "core/layout/LayoutText.h" | |
| 42 | |
| 43 namespace blink { | |
| 44 | |
| 45 using namespace HTMLNames; | |
| 46 | |
| 47 // When inserting a new line, we want to avoid nesting empty divs if we can. Ot
herwise, when | |
| 48 // pasting, it's easy to have each new line be a div deeper than the previous.
E.g., in the case | |
| 49 // below, we want to insert at ^ instead of |. | |
| 50 // <div>foo<div>bar</div>|</div>^ | |
| 51 static Element* highestVisuallyEquivalentDivBelowRoot(Element* startBlock) | |
| 52 { | |
| 53 Element* curBlock = startBlock; | |
| 54 // We don't want to return a root node (if it happens to be a div, e.g., in
a document fragment) because there are no | |
| 55 // siblings for us to append to. | |
| 56 while (!curBlock->nextSibling() && isHTMLDivElement(*curBlock->parentElement
()) && curBlock->parentElement()->parentElement()) { | |
| 57 if (curBlock->parentElement()->hasAttributes()) | |
| 58 break; | |
| 59 curBlock = curBlock->parentElement(); | |
| 60 } | |
| 61 return curBlock; | |
| 62 } | |
| 63 | |
| 64 InsertParagraphSeparatorCommand::InsertParagraphSeparatorCommand(Document& docum
ent, bool mustUseDefaultParagraphElement, bool pasteBlockquoteIntoUnquotedArea) | |
| 65 : CompositeEditCommand(document) | |
| 66 , m_mustUseDefaultParagraphElement(mustUseDefaultParagraphElement) | |
| 67 , m_pasteBlockquoteIntoUnquotedArea(pasteBlockquoteIntoUnquotedArea) | |
| 68 { | |
| 69 } | |
| 70 | |
| 71 bool InsertParagraphSeparatorCommand::preservesTypingStyle() const | |
| 72 { | |
| 73 return true; | |
| 74 } | |
| 75 | |
| 76 void InsertParagraphSeparatorCommand::calculateStyleBeforeInsertion(const Positi
on &pos) | |
| 77 { | |
| 78 // It is only important to set a style to apply later if we're at the bounda
ries of | |
| 79 // a paragraph. Otherwise, content that is moved as part of the work of the
command | |
| 80 // will lend their styles to the new paragraph without any extra work needed
. | |
| 81 VisiblePosition visiblePos(pos, VP_DEFAULT_AFFINITY); | |
| 82 if (!isStartOfParagraph(visiblePos) && !isEndOfParagraph(visiblePos)) | |
| 83 return; | |
| 84 | |
| 85 ASSERT(pos.isNotNull()); | |
| 86 m_style = EditingStyle::create(pos); | |
| 87 m_style->mergeTypingStyle(pos.document()); | |
| 88 } | |
| 89 | |
| 90 void InsertParagraphSeparatorCommand::applyStyleAfterInsertion(Element* original
EnclosingBlock) | |
| 91 { | |
| 92 // Not only do we break out of header tags, but we also do not preserve the
typing style, | |
| 93 // in order to match other browsers. | |
| 94 if (originalEnclosingBlock->hasTagName(h1Tag) | |
| 95 || originalEnclosingBlock->hasTagName(h2Tag) | |
| 96 || originalEnclosingBlock->hasTagName(h3Tag) | |
| 97 || originalEnclosingBlock->hasTagName(h4Tag) | |
| 98 || originalEnclosingBlock->hasTagName(h5Tag)) { | |
| 99 return; | |
| 100 } | |
| 101 | |
| 102 if (!m_style) | |
| 103 return; | |
| 104 | |
| 105 m_style->prepareToApplyAt(endingSelection().start()); | |
| 106 if (!m_style->isEmpty()) | |
| 107 applyStyle(m_style.get()); | |
| 108 } | |
| 109 | |
| 110 bool InsertParagraphSeparatorCommand::shouldUseDefaultParagraphElement(Element*
enclosingBlock) const | |
| 111 { | |
| 112 if (m_mustUseDefaultParagraphElement) | |
| 113 return true; | |
| 114 | |
| 115 // Assumes that if there was a range selection, it was already deleted. | |
| 116 if (!isEndOfBlock(endingSelection().visibleStart())) | |
| 117 return false; | |
| 118 | |
| 119 return enclosingBlock->hasTagName(h1Tag) | |
| 120 || enclosingBlock->hasTagName(h2Tag) | |
| 121 || enclosingBlock->hasTagName(h3Tag) | |
| 122 || enclosingBlock->hasTagName(h4Tag) | |
| 123 || enclosingBlock->hasTagName(h5Tag); | |
| 124 } | |
| 125 | |
| 126 void InsertParagraphSeparatorCommand::getAncestorsInsideBlock(const Node* insert
ionNode, Element* outerBlock, WillBeHeapVector<RefPtrWillBeMember<Element>>& anc
estors) | |
| 127 { | |
| 128 ancestors.clear(); | |
| 129 | |
| 130 // Build up list of ancestors elements between the insertion node and the ou
ter block. | |
| 131 if (insertionNode != outerBlock) { | |
| 132 for (Element* n = insertionNode->parentElement(); n && n != outerBlock;
n = n->parentElement()) | |
| 133 ancestors.append(n); | |
| 134 } | |
| 135 } | |
| 136 | |
| 137 PassRefPtrWillBeRawPtr<Element> InsertParagraphSeparatorCommand::cloneHierarchyU
nderNewBlock(const WillBeHeapVector<RefPtrWillBeMember<Element>>& ancestors, Pas
sRefPtrWillBeRawPtr<Element> blockToInsert) | |
| 138 { | |
| 139 // Make clones of ancestors in between the start node and the start block. | |
| 140 RefPtrWillBeRawPtr<Element> parent = blockToInsert; | |
| 141 for (size_t i = ancestors.size(); i != 0; --i) { | |
| 142 RefPtrWillBeRawPtr<Element> child = ancestors[i - 1]->cloneElementWithou
tChildren(); | |
| 143 // It should always be okay to remove id from the cloned elements, since
the originals are not deleted. | |
| 144 child->removeAttribute(idAttr); | |
| 145 appendNode(child, parent); | |
| 146 parent = child.release(); | |
| 147 } | |
| 148 | |
| 149 return parent.release(); | |
| 150 } | |
| 151 | |
| 152 void InsertParagraphSeparatorCommand::doApply() | |
| 153 { | |
| 154 if (!endingSelection().isNonOrphanedCaretOrRange()) | |
| 155 return; | |
| 156 | |
| 157 Position insertionPosition = endingSelection().start(); | |
| 158 | |
| 159 EAffinity affinity = endingSelection().affinity(); | |
| 160 | |
| 161 // Delete the current selection. | |
| 162 if (endingSelection().isRange()) { | |
| 163 calculateStyleBeforeInsertion(insertionPosition); | |
| 164 deleteSelection(false, true); | |
| 165 insertionPosition = endingSelection().start(); | |
| 166 affinity = endingSelection().affinity(); | |
| 167 } | |
| 168 | |
| 169 // FIXME: The parentAnchoredEquivalent conversion needs to be moved into enc
losingBlock. | |
| 170 RefPtrWillBeRawPtr<Element> startBlock = enclosingBlock(insertionPosition.pa
rentAnchoredEquivalent().computeContainerNode()); | |
| 171 Node* listChildNode = enclosingListChild(insertionPosition.parentAnchoredEqu
ivalent().computeContainerNode()); | |
| 172 RefPtrWillBeRawPtr<HTMLElement> listChild = listChildNode && listChildNode->
isHTMLElement() ? toHTMLElement(listChildNode) : 0; | |
| 173 Position canonicalPos = VisiblePosition(insertionPosition).deepEquivalent(); | |
| 174 if (!startBlock | |
| 175 || !startBlock->nonShadowBoundaryParentNode() | |
| 176 || isTableCell(startBlock.get()) | |
| 177 || isHTMLFormElement(*startBlock) | |
| 178 // FIXME: If the node is hidden, we don't have a canonical position so w
e will do the wrong thing for tables and <hr>. https://bugs.webkit.org/show_bug.
cgi?id=40342 | |
| 179 || (!canonicalPos.isNull() && isRenderedTableElement(canonicalPos.anchor
Node())) | |
| 180 || (!canonicalPos.isNull() && isHTMLHRElement(*canonicalPos.anchorNode()
))) { | |
| 181 applyCommandToComposite(InsertLineBreakCommand::create(document())); | |
| 182 return; | |
| 183 } | |
| 184 | |
| 185 // Use the leftmost candidate. | |
| 186 insertionPosition = insertionPosition.upstream(); | |
| 187 if (!insertionPosition.isCandidate()) | |
| 188 insertionPosition = insertionPosition.downstream(); | |
| 189 | |
| 190 // Adjust the insertion position after the delete | |
| 191 insertionPosition = positionAvoidingSpecialElementBoundary(insertionPosition
); | |
| 192 VisiblePosition visiblePos(insertionPosition, affinity); | |
| 193 calculateStyleBeforeInsertion(insertionPosition); | |
| 194 | |
| 195 //--------------------------------------------------------------------- | |
| 196 // Handle special case of typing return on an empty list item | |
| 197 if (breakOutOfEmptyListItem()) | |
| 198 return; | |
| 199 | |
| 200 //--------------------------------------------------------------------- | |
| 201 // Prepare for more general cases. | |
| 202 | |
| 203 bool isFirstInBlock = isStartOfBlock(visiblePos); | |
| 204 bool isLastInBlock = isEndOfBlock(visiblePos); | |
| 205 bool nestNewBlock = false; | |
| 206 | |
| 207 // Create block to be inserted. | |
| 208 RefPtrWillBeRawPtr<Element> blockToInsert = nullptr; | |
| 209 if (startBlock->isRootEditableElement()) { | |
| 210 blockToInsert = createDefaultParagraphElement(document()); | |
| 211 nestNewBlock = true; | |
| 212 } else if (shouldUseDefaultParagraphElement(startBlock.get())) { | |
| 213 blockToInsert = createDefaultParagraphElement(document()); | |
| 214 } else { | |
| 215 blockToInsert = startBlock->cloneElementWithoutChildren(); | |
| 216 } | |
| 217 | |
| 218 //--------------------------------------------------------------------- | |
| 219 // Handle case when position is in the last visible position in its block, | |
| 220 // including when the block is empty. | |
| 221 if (isLastInBlock) { | |
| 222 if (nestNewBlock) { | |
| 223 if (isFirstInBlock && !lineBreakExistsAtVisiblePosition(visiblePos))
{ | |
| 224 // The block is empty. Create an empty block to | |
| 225 // represent the paragraph that we're leaving. | |
| 226 RefPtrWillBeRawPtr<HTMLElement> extraBlock = createDefaultParagr
aphElement(document()); | |
| 227 appendNode(extraBlock, startBlock); | |
| 228 appendBlockPlaceholder(extraBlock); | |
| 229 } | |
| 230 appendNode(blockToInsert, startBlock); | |
| 231 } else { | |
| 232 // We can get here if we pasted a copied portion of a blockquote wit
h a newline at the end and are trying to paste it | |
| 233 // into an unquoted area. We then don't want the newline within the
blockquote or else it will also be quoted. | |
| 234 if (m_pasteBlockquoteIntoUnquotedArea) { | |
| 235 if (HTMLQuoteElement* highestBlockquote = toHTMLQuoteElement(hig
hestEnclosingNodeOfType(canonicalPos, &isMailHTMLBlockquoteElement))) | |
| 236 startBlock = highestBlockquote; | |
| 237 } | |
| 238 | |
| 239 if (listChild && listChild != startBlock) { | |
| 240 RefPtrWillBeRawPtr<Element> listChildToInsert = listChild->clone
ElementWithoutChildren(); | |
| 241 appendNode(blockToInsert, listChildToInsert.get()); | |
| 242 insertNodeAfter(listChildToInsert.get(), listChild); | |
| 243 } else { | |
| 244 // Most of the time we want to stay at the nesting level of the
startBlock (e.g., when nesting within lists). However, | |
| 245 // for div nodes, this can result in nested div tags that are ha
rd to break out of. | |
| 246 Element* siblingElement = startBlock.get(); | |
| 247 if (isHTMLDivElement(*blockToInsert)) | |
| 248 siblingElement = highestVisuallyEquivalentDivBelowRoot(start
Block.get()); | |
| 249 insertNodeAfter(blockToInsert, siblingElement); | |
| 250 } | |
| 251 } | |
| 252 | |
| 253 // Recreate the same structure in the new paragraph. | |
| 254 | |
| 255 WillBeHeapVector<RefPtrWillBeMember<Element>> ancestors; | |
| 256 getAncestorsInsideBlock(positionOutsideTabSpan(insertionPosition).anchor
Node(), startBlock.get(), ancestors); | |
| 257 RefPtrWillBeRawPtr<Element> parent = cloneHierarchyUnderNewBlock(ancesto
rs, blockToInsert); | |
| 258 | |
| 259 appendBlockPlaceholder(parent); | |
| 260 | |
| 261 setEndingSelection(VisibleSelection(firstPositionInNode(parent.get()), D
OWNSTREAM, endingSelection().isDirectional())); | |
| 262 return; | |
| 263 } | |
| 264 | |
| 265 | |
| 266 //--------------------------------------------------------------------- | |
| 267 // Handle case when position is in the first visible position in its block,
and | |
| 268 // similar case where previous position is in another, presumeably nested, b
lock. | |
| 269 if (isFirstInBlock || !inSameBlock(visiblePos, visiblePos.previous())) { | |
| 270 Node* refNode = nullptr; | |
| 271 insertionPosition = positionOutsideTabSpan(insertionPosition); | |
| 272 | |
| 273 if (isFirstInBlock && !nestNewBlock) { | |
| 274 if (listChild && listChild != startBlock) { | |
| 275 RefPtrWillBeRawPtr<Element> listChildToInsert = listChild->clone
ElementWithoutChildren(); | |
| 276 appendNode(blockToInsert, listChildToInsert.get()); | |
| 277 insertNodeBefore(listChildToInsert.get(), listChild); | |
| 278 } else { | |
| 279 refNode = startBlock.get(); | |
| 280 } | |
| 281 } else if (isFirstInBlock && nestNewBlock) { | |
| 282 // startBlock should always have children, otherwise isLastInBlock w
ould be true and it's handled above. | |
| 283 ASSERT(startBlock->hasChildren()); | |
| 284 refNode = startBlock->firstChild(); | |
| 285 } else if (insertionPosition.anchorNode() == startBlock && nestNewBlock)
{ | |
| 286 refNode = NodeTraversal::childAt(*startBlock, insertionPosition.comp
uteEditingOffset()); | |
| 287 ASSERT(refNode); // must be true or we'd be in the end of block case | |
| 288 } else { | |
| 289 refNode = insertionPosition.anchorNode(); | |
| 290 } | |
| 291 | |
| 292 // find ending selection position easily before inserting the paragraph | |
| 293 insertionPosition = insertionPosition.downstream(); | |
| 294 | |
| 295 if (refNode) | |
| 296 insertNodeBefore(blockToInsert, refNode); | |
| 297 | |
| 298 // Recreate the same structure in the new paragraph. | |
| 299 | |
| 300 WillBeHeapVector<RefPtrWillBeMember<Element>> ancestors; | |
| 301 getAncestorsInsideBlock(positionAvoidingSpecialElementBoundary(positionO
utsideTabSpan(insertionPosition)).anchorNode(), startBlock.get(), ancestors); | |
| 302 | |
| 303 appendBlockPlaceholder(cloneHierarchyUnderNewBlock(ancestors, blockToIns
ert)); | |
| 304 | |
| 305 // In this case, we need to set the new ending selection. | |
| 306 setEndingSelection(VisibleSelection(insertionPosition, DOWNSTREAM, endin
gSelection().isDirectional())); | |
| 307 return; | |
| 308 } | |
| 309 | |
| 310 //--------------------------------------------------------------------- | |
| 311 // Handle the (more complicated) general case, | |
| 312 | |
| 313 // All of the content in the current block after visiblePos is | |
| 314 // about to be wrapped in a new paragraph element. Add a br before | |
| 315 // it if visiblePos is at the start of a paragraph so that the | |
| 316 // content will move down a line. | |
| 317 if (isStartOfParagraph(visiblePos)) { | |
| 318 RefPtrWillBeRawPtr<HTMLBRElement> br = createBreakElement(document()); | |
| 319 insertNodeAt(br.get(), insertionPosition); | |
| 320 insertionPosition = positionInParentAfterNode(*br); | |
| 321 // If the insertion point is a break element, there is nothing else | |
| 322 // we need to do. | |
| 323 if (visiblePos.deepEquivalent().anchorNode()->layoutObject()->isBR()) { | |
| 324 setEndingSelection(VisibleSelection(insertionPosition, DOWNSTREAM, e
ndingSelection().isDirectional())); | |
| 325 return; | |
| 326 } | |
| 327 } | |
| 328 | |
| 329 // Move downstream. Typing style code will take care of carrying along the | |
| 330 // style of the upstream position. | |
| 331 insertionPosition = insertionPosition.downstream(); | |
| 332 | |
| 333 // At this point, the insertionPosition's node could be a container, and we
want to make sure we include | |
| 334 // all of the correct nodes when building the ancestor list. So this needs
to be the deepest representation of the position | |
| 335 // before we walk the DOM tree. | |
| 336 insertionPosition = positionOutsideTabSpan(VisiblePosition(insertionPosition
).deepEquivalent()); | |
| 337 | |
| 338 // If the returned position lies either at the end or at the start of an ele
ment that is ignored by editing | |
| 339 // we should move to its upstream or downstream position. | |
| 340 if (editingIgnoresContent(insertionPosition.anchorNode())) { | |
| 341 if (insertionPosition.atLastEditingPositionForNode()) | |
| 342 insertionPosition = insertionPosition.downstream(); | |
| 343 else if (insertionPosition.atFirstEditingPositionForNode()) | |
| 344 insertionPosition = insertionPosition.upstream(); | |
| 345 } | |
| 346 | |
| 347 // Make sure we do not cause a rendered space to become unrendered. | |
| 348 // FIXME: We need the affinity for pos, but pos.downstream() does not give i
t | |
| 349 Position leadingWhitespace = leadingWhitespacePosition(insertionPosition, VP
_DEFAULT_AFFINITY); | |
| 350 // FIXME: leadingWhitespacePosition is returning the position before preserv
ed newlines for positions | |
| 351 // after the preserved newline, causing the newline to be turned into a nbsp
. | |
| 352 if (leadingWhitespace.isNotNull() && leadingWhitespace.anchorNode()->isTextN
ode()) { | |
| 353 Text* textNode = toText(leadingWhitespace.anchorNode()); | |
| 354 ASSERT(!textNode->layoutObject() || textNode->layoutObject()->style()->c
ollapseWhiteSpace()); | |
| 355 replaceTextInNodePreservingMarkers(textNode, leadingWhitespace.computeOf
fsetInContainerNode(), 1, nonBreakingSpaceString()); | |
| 356 } | |
| 357 | |
| 358 // Split at pos if in the middle of a text node. | |
| 359 Position positionAfterSplit; | |
| 360 if (insertionPosition.isOffsetInAnchor() && insertionPosition.computeContain
erNode()->isTextNode()) { | |
| 361 RefPtrWillBeRawPtr<Text> textNode = toText(insertionPosition.computeCont
ainerNode()); | |
| 362 int textOffset = insertionPosition.offsetInContainerNode(); | |
| 363 bool atEnd = static_cast<unsigned>(textOffset) >= textNode->length(); | |
| 364 if (textOffset > 0 && !atEnd) { | |
| 365 splitTextNode(textNode, textOffset); | |
| 366 positionAfterSplit = firstPositionInNode(textNode.get()); | |
| 367 insertionPosition = Position(textNode->previousSibling(), textOffset
); | |
| 368 visiblePos = VisiblePosition(insertionPosition); | |
| 369 } | |
| 370 } | |
| 371 | |
| 372 // If we got detached due to mutation events, just bail out. | |
| 373 if (!startBlock->parentNode()) | |
| 374 return; | |
| 375 | |
| 376 // Put the added block in the tree. | |
| 377 if (nestNewBlock) { | |
| 378 appendNode(blockToInsert.get(), startBlock); | |
| 379 } else if (listChild && listChild != startBlock) { | |
| 380 RefPtrWillBeRawPtr<Element> listChildToInsert = listChild->cloneElementW
ithoutChildren(); | |
| 381 appendNode(blockToInsert.get(), listChildToInsert.get()); | |
| 382 insertNodeAfter(listChildToInsert.get(), listChild); | |
| 383 } else { | |
| 384 insertNodeAfter(blockToInsert.get(), startBlock); | |
| 385 } | |
| 386 | |
| 387 document().updateLayoutIgnorePendingStylesheets(); | |
| 388 | |
| 389 // If the paragraph separator was inserted at the end of a paragraph, an emp
ty line must be | |
| 390 // created. All of the nodes, starting at visiblePos, are about to be added
to the new paragraph | |
| 391 // element. If the first node to be inserted won't be one that will hold an
empty line open, add a br. | |
| 392 if (isEndOfParagraph(visiblePos) && !lineBreakExistsAtVisiblePosition(visibl
ePos)) | |
| 393 appendNode(createBreakElement(document()).get(), blockToInsert.get()); | |
| 394 | |
| 395 // Move the start node and the siblings of the start node. | |
| 396 if (VisiblePosition(insertionPosition).deepEquivalent() != VisiblePosition(p
ositionBeforeNode(blockToInsert.get())).deepEquivalent()) { | |
| 397 Node* n; | |
| 398 if (insertionPosition.computeContainerNode() == startBlock) { | |
| 399 n = insertionPosition.computeNodeAfterPosition(); | |
| 400 } else { | |
| 401 Node* splitTo = insertionPosition.computeContainerNode(); | |
| 402 if (splitTo->isTextNode() && insertionPosition.offsetInContainerNode
() >= caretMaxOffset(splitTo)) | |
| 403 splitTo = NodeTraversal::next(*splitTo, startBlock.get()); | |
| 404 ASSERT(splitTo); | |
| 405 splitTreeToNode(splitTo, startBlock.get()); | |
| 406 | |
| 407 for (n = startBlock->firstChild(); n; n = n->nextSibling()) { | |
| 408 VisiblePosition beforeNodePosition(positionBeforeNode(n)); | |
| 409 if (!beforeNodePosition.isNull() && comparePositions(VisiblePosi
tion(insertionPosition), beforeNodePosition) <= 0) | |
| 410 break; | |
| 411 } | |
| 412 } | |
| 413 | |
| 414 moveRemainingSiblingsToNewParent(n, blockToInsert.get(), blockToInsert); | |
| 415 } | |
| 416 | |
| 417 // Handle whitespace that occurs after the split | |
| 418 if (positionAfterSplit.isNotNull()) { | |
| 419 document().updateLayoutIgnorePendingStylesheets(); | |
| 420 if (!positionAfterSplit.isRenderedCharacter()) { | |
| 421 // Clear out all whitespace and insert one non-breaking space | |
| 422 ASSERT(!positionAfterSplit.computeContainerNode()->layoutObject() ||
positionAfterSplit.computeContainerNode()->layoutObject()->style()->collapseWhi
teSpace()); | |
| 423 deleteInsignificantTextDownstream(positionAfterSplit); | |
| 424 if (positionAfterSplit.anchorNode()->isTextNode()) | |
| 425 insertTextIntoNode(toText(positionAfterSplit.computeContainerNod
e()), 0, nonBreakingSpaceString()); | |
| 426 } | |
| 427 } | |
| 428 | |
| 429 setEndingSelection(VisibleSelection(firstPositionInNode(blockToInsert.get())
, DOWNSTREAM, endingSelection().isDirectional())); | |
| 430 applyStyleAfterInsertion(startBlock.get()); | |
| 431 } | |
| 432 | |
| 433 DEFINE_TRACE(InsertParagraphSeparatorCommand) | |
| 434 { | |
| 435 visitor->trace(m_style); | |
| 436 CompositeEditCommand::trace(visitor); | |
| 437 } | |
| 438 | |
| 439 | |
| 440 } // namespace blink | |
| OLD | NEW |
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Chromium Code Reviews
Issue 1294543005:
Move execCommand related files in core/editing/ related files into core/editing/commands/ (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master