| /* | |
| * Copyright (C) 2005, 2006, 2008 Apple Inc. All rights reserved. | |
| * | |
| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted provided that the following conditions | |
| * are met: | |
| * 1. Redistributions of source code must retain the above copyright | |
| * notice, this list of conditions and the following disclaimer. | |
| * 2. Redistributions in binary form must reproduce the above copyright | |
| * notice, this list of conditions and the following disclaimer in the | |
| * documentation and/or other materials provided with the distribution. | |
| * | |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| */ | |
| #include "config.h" | |
| #include "ReplaceSelectionCommand.h" | |
| #include "ApplyStyleCommand.h" | |
| #include "BeforeTextInsertedEvent.h" | |
| #include "BreakBlockquoteCommand.h" | |
| #include "CSSComputedStyleDeclaration.h" | |
| #include "CSSMutableStyleDeclaration.h" | |
| #include "CSSProperty.h" | |
| #include "CSSPropertyNames.h" | |
| #include "CSSValueKeywords.h" | |
| #include "Document.h" | |
| #include "DocumentFragment.h" | |
| #include "EditingText.h" | |
| #include "Element.h" | |
| #include "EventNames.h" | |
| #include "Frame.h" | |
| #include "HTMLElement.h" | |
| #include "HTMLInputElement.h" | |
| #include "HTMLInterchange.h" | |
| #include "HTMLNames.h" | |
| #include "SelectionController.h" | |
| #include "SmartReplace.h" | |
| #include "TextIterator.h" | |
| #include "htmlediting.h" | |
| #include "markup.h" | |
| #include "visible_units.h" | |
| #include <wtf/StdLibExtras.h> | |
| namespace WebCore { | |
| using namespace HTMLNames; | |
| enum EFragmentType { EmptyFragment, SingleTextNodeFragment, TreeFragment }; | |
| // --- ReplacementFragment helper class | |
| class ReplacementFragment : public Noncopyable { | |
| public: | |
| ReplacementFragment(Document*, DocumentFragment*, bool matchStyle, const VisibleSelection&); | |
| Node* firstChild() const; | |
| Node* lastChild() const; | |
| bool isEmpty() const; | |
| bool hasInterchangeNewlineAtStart() const { return m_hasInterchangeNewlineAtStart; } | |
| bool hasInterchangeNewlineAtEnd() const { return m_hasInterchangeNewlineAtEnd; } | |
| void removeNode(PassRefPtr<Node>); | |
| void removeNodePreservingChildren(Node*); | |
| private: | |
| PassRefPtr<Node> insertFragmentForTestRendering(Node* context); | |
| void removeUnrenderedNodes(Node*); | |
| void restoreTestRenderingNodesToFragment(Node*); | |
| void removeInterchangeNodes(Node*); | |
| void insertNodeBefore(PassRefPtr<Node> node, Node* refNode); | |
| RefPtr<Document> m_document; | |
| RefPtr<DocumentFragment> m_fragment; | |
| bool m_matchStyle; | |
| bool m_hasInterchangeNewlineAtStart; | |
| bool m_hasInterchangeNewlineAtEnd; | |
| }; | |
| static bool isInterchangeNewlineNode(const Node *node) | |
| { | |
| DEFINE_STATIC_LOCAL(String, interchangeNewlineClassString, (AppleInterchangeNewline)); | |
| return node && node->hasTagName(brTag) && | |
| static_cast<const Element *>(node)->getAttribute(classAttr) == interchangeNewlineClassString; | |
| } | |
| static bool isInterchangeConvertedSpaceSpan(const Node *node) | |
| { | |
| DEFINE_STATIC_LOCAL(String, convertedSpaceSpanClassString, (AppleConvertedSpace)); | |
| return node->isHTMLElement() && | |
| static_cast<const HTMLElement *>(node)->getAttribute(classAttr) == convertedSpaceSpanClassString; | |
| } | |
| static Position positionAvoidingPrecedingNodes(Position pos) | |
| { | |
| // If we're already on a break, it's probably a placeholder and we shouldn't change our position. | |
| if (pos.node()->hasTagName(brTag)) | |
| return pos; | |
| // We also stop when changing block flow elements because even though the visual position is the | |
| // same. E.g., | |
| // <div>foo^</div>^ | |
| // The two positions above are the same visual position, but we want to stay in the same block. | |
| Node* stopNode = pos.node()->enclosingBlockFlowElement(); | |
| while (stopNode != pos.node() && VisiblePosition(pos) == VisiblePosition(pos.next())) | |
| pos = pos.next(); | |
| return pos; | |
| } | |
| ReplacementFragment::ReplacementFragment(Document* document, DocumentFragment* fragment, bool matchStyle, const VisibleSelection& selection) | |
| : m_document(document), | |
| m_fragment(fragment), | |
| m_matchStyle(matchStyle), | |
| m_hasInterchangeNewlineAtStart(false), | |
| m_hasInterchangeNewlineAtEnd(false) | |
| { | |
| if (!m_document) | |
| return; | |
| if (!m_fragment) | |
| return; | |
| if (!m_fragment->firstChild()) | |
| return; | |
| Element* editableRoot = selection.rootEditableElement(); | |
| ASSERT(editableRoot); | |
| if (!editableRoot) | |
| return; | |
| Node* shadowAncestorNode = editableRoot->shadowAncestorNode(); | |
| if (!editableRoot->getAttributeEventListener(eventNames().webkitBeforeTextInsertedEvent) && | |
| // FIXME: Remove these checks once textareas and textfields actually register an event handler. | |
| !(shadowAncestorNode && shadowAncestorNode->renderer() && shadowAncestorNode->renderer()->isTextControl()) && | |
| editableRoot->isContentRichlyEditable()) { | |
| removeInterchangeNodes(m_fragment.get()); | |
| return; | |
| } | |
| Node* styleNode = selection.base().node(); | |
| RefPtr<Node> holder = insertFragmentForTestRendering(styleNode); | |
| RefPtr<Range> range = VisibleSelection::selectionFromContentsOfNode(holder.get()).toNormalizedRange(); | |
| String text = plainText(range.get()); | |
| // Give the root a chance to change the text. | |
| RefPtr<BeforeTextInsertedEvent> evt = BeforeTextInsertedEvent::create(text); | |
| ExceptionCode ec = 0; | |
| editableRoot->dispatchEvent(evt, ec); | |
| ASSERT(ec == 0); | |
| if (text != evt->text() || !editableRoot->isContentRichlyEditable()) { | |
| restoreTestRenderingNodesToFragment(holder.get()); | |
| removeNode(holder); | |
| m_fragment = createFragmentFromText(selection.toNormalizedRange().get(), evt->text()); | |
| if (!m_fragment->firstChild()) | |
| return; | |
| holder = insertFragmentForTestRendering(styleNode); | |
| } | |
| removeInterchangeNodes(holder.get()); | |
| removeUnrenderedNodes(holder.get()); | |
| restoreTestRenderingNodesToFragment(holder.get()); | |
| removeNode(holder); | |
| } | |
| bool ReplacementFragment::isEmpty() const | |
| { | |
| return (!m_fragment || !m_fragment->firstChild()) && !m_hasInterchangeNewlineAtStart && !m_hasInterchangeNewlineAtEnd; | |
| } | |
| Node *ReplacementFragment::firstChild() const | |
| { | |
| return m_fragment ? m_fragment->firstChild() : 0; | |
| } | |
| Node *ReplacementFragment::lastChild() const | |
| { | |
| return m_fragment ? m_fragment->lastChild() : 0; | |
| } | |
| void ReplacementFragment::removeNodePreservingChildren(Node *node) | |
| { | |
| if (!node) | |
| return; | |
| while (RefPtr<Node> n = node->firstChild()) { | |
| removeNode(n); | |
| insertNodeBefore(n.release(), node); | |
| } | |
| removeNode(node); | |
| } | |
| void ReplacementFragment::removeNode(PassRefPtr<Node> node) | |
| { | |
| if (!node) | |
| return; | |
| Node *parent = node->parentNode(); | |
| if (!parent) | |
| return; | |
| ExceptionCode ec = 0; | |
| parent->removeChild(node.get(), ec); | |
| ASSERT(ec == 0); | |
| } | |
| void ReplacementFragment::insertNodeBefore(PassRefPtr<Node> node, Node* refNode) | |
| { | |
| if (!node || !refNode) | |
| return; | |
| Node* parent = refNode->parentNode(); | |
| if (!parent) | |
| return; | |
| ExceptionCode ec = 0; | |
| parent->insertBefore(node, refNode, ec); | |
| ASSERT(ec == 0); | |
| } | |
| PassRefPtr<Node> ReplacementFragment::insertFragmentForTestRendering(Node* context) | |
| { | |
| Node* body = m_document->body(); | |
| if (!body) | |
| return 0; | |
| RefPtr<StyledElement> holder = createDefaultParagraphElement(m_document.get()); | |
| ExceptionCode ec = 0; | |
| // Copy the whitespace and user-select style from the context onto this element. | |
| // FIXME: We should examine other style properties to see if they would be appropriate to consider during the test rendering. | |
| Node* n = context; | |
| while (n && !n->isElementNode()) | |
| n = n->parentNode(); | |
| if (n) { | |
| RefPtr<CSSComputedStyleDeclaration> conFontStyle = computedStyle(n); | |
| CSSStyleDeclaration* style = holder->style(); | |
| style->setProperty(CSSPropertyWhiteSpace, conFontStyle->getPropertyValue(CSSPropertyWhiteSpace), false, ec); | |
| ASSERT(ec == 0); | |
| style->setProperty(CSSPropertyWebkitUserSelect, conFontStyle->getPropertyValue(CSSPropertyWebkitUserSelect), false, ec); | |
| ASSERT(ec == 0); | |
| } | |
| holder->appendChild(m_fragment, ec); | |
| ASSERT(ec == 0); | |
| body->appendChild(holder.get(), ec); | |
| ASSERT(ec == 0); | |
| m_document->updateLayoutIgnorePendingStylesheets(); | |
| return holder.release(); | |
| } | |
| void ReplacementFragment::restoreTestRenderingNodesToFragment(Node *holder) | |
| { | |
| if (!holder) | |
| return; | |
| ExceptionCode ec = 0; | |
| while (RefPtr<Node> node = holder->firstChild()) { | |
| holder->removeChild(node.get(), ec); | |
| ASSERT(ec == 0); | |
| m_fragment->appendChild(node.get(), ec); | |
| ASSERT(ec == 0); | |
| } | |
| } | |
| void ReplacementFragment::removeUnrenderedNodes(Node* holder) | |
| { | |
| Vector<Node*> unrendered; | |
| for (Node* node = holder->firstChild(); node; node = node->traverseNextNode(holder)) | |
| if (!isNodeRendered(node) && !isTableStructureNode(node)) | |
| unrendered.append(node); | |
| size_t n = unrendered.size(); | |
| for (size_t i = 0; i < n; ++i) | |
| removeNode(unrendered[i]); | |
| } | |
| void ReplacementFragment::removeInterchangeNodes(Node* container) | |
| { | |
| // Interchange newlines at the "start" of the incoming fragment must be | |
| // either the first node in the fragment or the first leaf in the fragment. | |
| Node* node = container->firstChild(); | |
| while (node) { | |
| if (isInterchangeNewlineNode(node)) { | |
| m_hasInterchangeNewlineAtStart = true; | |
| removeNode(node); | |
| break; | |
| } | |
| node = node->firstChild(); | |
| } | |
| if (!container->hasChildNodes()) | |
| return; | |
| // Interchange newlines at the "end" of the incoming fragment must be | |
| // either the last node in the fragment or the last leaf in the fragment. | |
| node = container->lastChild(); | |
| while (node) { | |
| if (isInterchangeNewlineNode(node)) { | |
| m_hasInterchangeNewlineAtEnd = true; | |
| removeNode(node); | |
| break; | |
| } | |
| node = node->lastChild(); | |
| } | |
| node = container->firstChild(); | |
| while (node) { | |
| Node *next = node->traverseNextNode(); | |
| if (isInterchangeConvertedSpaceSpan(node)) { | |
| RefPtr<Node> n = 0; | |
| while ((n = node->firstChild())) { | |
| removeNode(n); | |
| insertNodeBefore(n, node); | |
| } | |
| removeNode(node); | |
| if (n) | |
| next = n->traverseNextNode(); | |
| } | |
| node = next; | |
| } | |
| } | |
| ReplaceSelectionCommand::ReplaceSelectionCommand(Document* document, PassRefPtr<DocumentFragment> fragment, | |
| bool selectReplacement, bool smartReplace, bool matchStyle, bool preventNesting, bool movingParagraph, | |
| EditAction editAction) | |
| : CompositeEditCommand(document), | |
| m_selectReplacement(selectReplacement), | |
| m_smartReplace(smartReplace), | |
| m_matchStyle(matchStyle), | |
| m_documentFragment(fragment), | |
| m_preventNesting(preventNesting), | |
| m_movingParagraph(movingParagraph), | |
| m_editAction(editAction), | |
| m_shouldMergeEnd(false) | |
| { | |
| } | |
| static bool hasMatchingQuoteLevel(VisiblePosition endOfExistingContent, VisiblePosition endOfInsertedContent) | |
| { | |
| Position existing = endOfExistingContent.deepEquivalent(); | |
| Position inserted = endOfInsertedContent.deepEquivalent(); | |
| bool isInsideMailBlockquote = nearestMailBlockquote(inserted.node()); | |
| return isInsideMailBlockquote && (numEnclosingMailBlockquotes(existing) == numEnclosingMailBlockquotes(inserted)); | |
| } | |
| bool ReplaceSelectionCommand::shouldMergeStart(bool selectionStartWasStartOfParagraph, bool fragmentHasInterchangeNewlineAtStart, bool selectionStartWasInsideMailBlockquote) | |
| { | |
| if (m_movingParagraph) | |
| return false; | |
| VisiblePosition startOfInsertedContent(positionAtStartOfInsertedContent()); | |
| VisiblePosition prev = startOfInsertedContent.previous(true); | |
| if (prev.isNull()) | |
| return false; | |
| // When we have matching quote levels, its ok to merge more frequently. | |
| // For a successful merge, we still need to make sure that the inserted content starts with the beginning of a paragraph. | |
| // And we should only merge here if the selection start was inside a mail blockquote. This prevents against removing a | |
| // blockquote from newly pasted quoted content that was pasted into an unquoted position. If that unquoted position happens | |
| // to be right after another blockquote, we don't want to merge and risk stripping a valid block (and newline) from the pasted content. | |
| if (isStartOfParagraph(startOfInsertedContent) && selectionStartWasInsideMailBlockquote && hasMatchingQuoteLevel(prev, positionAtEndOfInsertedContent())) | |
| return true; | |
| return !selectionStartWasStartOfParagraph && | |
| !fragmentHasInterchangeNewlineAtStart && | |
| isStartOfParagraph(startOfInsertedContent) && | |
| !startOfInsertedContent.deepEquivalent().node()->hasTagName(brTag) && | |
| shouldMerge(startOfInsertedContent, prev); | |
| } | |
| bool ReplaceSelectionCommand::shouldMergeEnd(bool selectionEndWasEndOfParagraph) | |
| { | |
| VisiblePosition endOfInsertedContent(positionAtEndOfInsertedContent()); | |
| VisiblePosition next = endOfInsertedContent.next(true); | |
| if (next.isNull()) | |
| return false; | |
| return !selectionEndWasEndOfParagraph && | |
| isEndOfParagraph(endOfInsertedContent) && | |
| !endOfInsertedContent.deepEquivalent().node()->hasTagName(brTag) && | |
| shouldMerge(endOfInsertedContent, next); | |
| } | |
| static bool isMailPasteAsQuotationNode(const Node* node) | |
| { | |
| return node && node->hasTagName(blockquoteTag) && node->isElementNode() && static_cast<const Element*>(node)->getAttribute(classAttr) == ApplePasteAsQuotation; | |
| } | |
| // Wrap CompositeEditCommand::removeNodePreservingChildren() so we can update the nodes we track | |
| void ReplaceSelectionCommand::removeNodePreservingChildren(Node* node) | |
| { | |
| if (m_firstNodeInserted == node) | |
| m_firstNodeInserted = node->traverseNextNode(); | |
| if (m_lastLeafInserted == node) | |
| m_lastLeafInserted = node->lastChild() ? node->lastChild() : node->traverseNextSibling(); | |
| CompositeEditCommand::removeNodePreservingChildren(node); | |
| } | |
| // Wrap CompositeEditCommand::removeNodeAndPruneAncestors() so we can update the nodes we track | |
| void ReplaceSelectionCommand::removeNodeAndPruneAncestors(Node* node) | |
| { | |
| // prepare in case m_firstNodeInserted and/or m_lastLeafInserted get removed | |
| // FIXME: shouldn't m_lastLeafInserted be adjusted using traversePreviousNode()? | |
| Node* afterFirst = m_firstNodeInserted ? m_firstNodeInserted->traverseNextSibling() : 0; | |
| Node* afterLast = m_lastLeafInserted ? m_lastLeafInserted->traverseNextSibling() : 0; | |
| CompositeEditCommand::removeNodeAndPruneAncestors(node); | |
| // adjust m_firstNodeInserted and m_lastLeafInserted since either or both may have been removed | |
| if (m_lastLeafInserted && !m_lastLeafInserted->inDocument()) | |
| m_lastLeafInserted = afterLast; | |
| if (m_firstNodeInserted && !m_firstNodeInserted->inDocument()) | |
| m_firstNodeInserted = m_lastLeafInserted && m_lastLeafInserted->inDocument() ? afterFirst : 0; | |
| } | |
| static bool isHeaderElement(Node* a) | |
| { | |
| if (!a) | |
| return false; | |
| return a->hasTagName(h1Tag) || | |
| a->hasTagName(h2Tag) || | |
| a->hasTagName(h3Tag) || | |
| a->hasTagName(h4Tag) || | |
| a->hasTagName(h5Tag); | |
| } | |
| static bool haveSameTagName(Node* a, Node* b) | |
| { | |
| return a && b && a->isElementNode() && b->isElementNode() && static_cast<Element*>(a)->tagName() == static_cast<Element*>(b)->tagName(); | |
| } | |
| bool ReplaceSelectionCommand::shouldMerge(const VisiblePosition& source, const VisiblePosition& destination) | |
| { | |
| if (source.isNull() || destination.isNull()) | |
| return false; | |
| Node* sourceNode = source.deepEquivalent().node(); | |
| Node* destinationNode = destination.deepEquivalent().node(); | |
| Node* sourceBlock = enclosingBlock(sourceNode); | |
| Node* destinationBlock = enclosingBlock(destinationNode); | |
| return !enclosingNodeOfType(source.deepEquivalent(), &isMailPasteAsQuotationNode) && | |
| sourceBlock && (!sourceBlock->hasTagName(blockquoteTag) || isMailBlockquote(sourceBlock)) && | |
| enclosingListChild(sourceBlock) == enclosingListChild(destinationNode) && | |
| enclosingTableCell(source.deepEquivalent()) == enclosingTableCell(destination.deepEquivalent()) && | |
| (!isHeaderElement(sourceBlock) || haveSameTagName(sourceBlock, destinationBlock)) && | |
| // Don't merge to or from a position before or after a block because it would | |
| // be a no-op and cause infinite recursion. | |
| !isBlock(sourceNode) && !isBlock(destinationNode); | |
| } | |
| // Style rules that match just inserted elements could change their appearance, like | |
| // a div inserted into a document with div { display:inline; }. | |
| void ReplaceSelectionCommand::negateStyleRulesThatAffectAppearance() | |
| { | |
| for (RefPtr<Node> node = m_firstNodeInserted.get(); node; node = node->traverseNextNode()) { | |
| // FIXME: <rdar://problem/5371536> Style rules that match pasted content can change it's appearance | |
| if (isStyleSpan(node.get())) { | |
| HTMLElement* e = static_cast<HTMLElement*>(node.get()); | |
| // There are other styles that style rules can give to style spans, | |
| // but these are the two important ones because they'll prevent | |
| // inserted content from appearing in the right paragraph. | |
| // FIXME: Hyatt is concerned that selectively using display:inline will give inconsistent | |
| // results. We already know one issue because td elements ignore their display property | |
| // in quirks mode (which Mail.app is always in). We should look for an alternative. | |
| if (isBlock(e)) | |
| e->getInlineStyleDecl()->setProperty(CSSPropertyDisplay, CSSValueInline); | |
| if (e->renderer() && e->renderer()->style()->floating() != FNONE) | |
| e->getInlineStyleDecl()->setProperty(CSSPropertyFloat, CSSValueNone); | |
| // Undo the effects of page zoom if we have an absolute font size. When we copy, we | |
| // compute the new font size as an absolute size so pasting will cause the zoom to be | |
| // applied twice. | |
| if (e->renderer() && e->renderer()->style() && e->renderer()->style()->effectiveZoom() != 1.0 | |
| && e->renderer()->style()->fontDescription().isAbsoluteSize()) { | |
| float newSize = e->renderer()->style()->fontDescription().specifiedSize() / e->renderer()->style()->effectiveZoom(); | |
| ExceptionCode ec = 0; | |
| e->style()->setProperty(CSSPropertyFontSize, String::number(newSize), false, ec); | |
| ASSERT(!ec); | |
| } | |
| } | |
| if (node == m_lastLeafInserted) | |
| break; | |
| } | |
| } | |
| void ReplaceSelectionCommand::removeUnrenderedTextNodesAtEnds() | |
| { | |
| document()->updateLayoutIgnorePendingStylesheets(); | |
| if (!m_lastLeafInserted->renderer() && | |
| m_lastLeafInserted->isTextNode() && | |
| !enclosingNodeWithTag(Position(m_lastLeafInserted.get(), 0), selectTag) && | |
| !enclosingNodeWithTag(Position(m_lastLeafInserted.get(), 0), scriptTag)) { | |
| if (m_firstNodeInserted == m_lastLeafInserted) { | |
| removeNode(m_lastLeafInserted.get()); | |
| m_lastLeafInserted = 0; | |
| m_firstNodeInserted = 0; | |
| return; | |
| } | |
| RefPtr<Node> previous = m_lastLeafInserted->traversePreviousNode(); | |
| removeNode(m_lastLeafInserted.get()); | |
| m_lastLeafInserted = previous; | |
| } | |
| // We don't have to make sure that m_firstNodeInserted isn't inside a select or script element, because | |
| // it is a top level node in the fragment and the user can't insert into those elements. | |
| if (!m_firstNodeInserted->renderer() && | |
| m_firstNodeInserted->isTextNode()) { | |
| if (m_firstNodeInserted == m_lastLeafInserted) { | |
| removeNode(m_firstNodeInserted.get()); | |
| m_firstNodeInserted = 0; | |
| m_lastLeafInserted = 0; | |
| return; | |
| } | |
| RefPtr<Node> next = m_firstNodeInserted->traverseNextSibling(); | |
| removeNode(m_firstNodeInserted.get()); | |
| m_firstNodeInserted = next; | |
| } | |
| } | |
| void ReplaceSelectionCommand::handlePasteAsQuotationNode() | |
| { | |
| Node* node = m_firstNodeInserted.get(); | |
| if (isMailPasteAsQuotationNode(node)) | |
| removeNodeAttribute(static_cast<Element*>(node), classAttr); | |
| } | |
| VisiblePosition ReplaceSelectionCommand::positionAtEndOfInsertedContent() | |
| { | |
| Node* lastNode = m_lastLeafInserted.get(); | |
| // FIXME: Why is this hack here? What's special about <select> tags? | |
| Node* enclosingSelect = enclosingNodeWithTag(firstDeepEditingPositionForNode(lastNode), selectTag); | |
| if (enclosingSelect) | |
| lastNode = enclosingSelect; | |
| return lastDeepEditingPositionForNode(lastNode); | |
| } | |
| VisiblePosition ReplaceSelectionCommand::positionAtStartOfInsertedContent() | |
| { | |
| // Return the inserted content's first VisiblePosition. | |
| return VisiblePosition(nextCandidate(positionInParentBeforeNode(m_firstNodeInserted.get()))); | |
| } | |
| // Remove style spans before insertion if they are unnecessary. It's faster because we'll | |
| // avoid doing a layout. | |
| static bool handleStyleSpansBeforeInsertion(ReplacementFragment& fragment, const Position& insertionPos) | |
| { | |
| Node* topNode = fragment.firstChild(); | |
| // Handling the case where we are doing Paste as Quotation or pasting into quoted content is more complicated (see handleStyleSpans) | |
| // and doesn't receive the optimization. | |
| if (isMailPasteAsQuotationNode(topNode) || nearestMailBlockquote(topNode)) | |
| return false; | |
| // Either there are no style spans in the fragment or a WebKit client has added content to the fragment | |
| // before inserting it. Look for and handle style spans after insertion. | |
| if (!isStyleSpan(topNode)) | |
| return false; | |
| Node* sourceDocumentStyleSpan = topNode; | |
| RefPtr<Node> copiedRangeStyleSpan = sourceDocumentStyleSpan->firstChild(); | |
| RefPtr<CSSMutableStyleDeclaration> styleAtInsertionPos = editingStyleAtPosition(rangeCompliantEquivalent(insertionPos)); | |
| String styleText = styleAtInsertionPos->cssText(); | |
| if (styleText == static_cast<Element*>(sourceDocumentStyleSpan)->getAttribute(styleAttr)) { | |
| fragment.removeNodePreservingChildren(sourceDocumentStyleSpan); | |
| if (!isStyleSpan(copiedRangeStyleSpan.get())) | |
| return true; | |
| } | |
| if (isStyleSpan(copiedRangeStyleSpan.get()) && styleText == static_cast<Element*>(copiedRangeStyleSpan.get())->getAttribute(styleAttr)) { | |
| fragment.removeNodePreservingChildren(copiedRangeStyleSpan.get()); | |
| return true; | |
| } | |
| return false; | |
| } | |
| // At copy time, WebKit wraps copied content in a span that contains the source document's | |
| // default styles. If the copied Range inherits any other styles from its ancestors, we put | |
| // those styles on a second span. | |
| // This function removes redundant styles from those spans, and removes the spans if all their | |
| // styles are redundant. | |
| // We should remove the Apple-style-span class when we're done, see <rdar://problem/5685600>. | |
| // We should remove styles from spans that are overridden by all of their children, either here | |
| // or at copy time. | |
| void ReplaceSelectionCommand::handleStyleSpans() | |
| { | |
| Node* sourceDocumentStyleSpan = 0; | |
| Node* copiedRangeStyleSpan = 0; | |
| // The style span that contains the source document's default style should be at | |
| // the top of the fragment, but Mail sometimes adds a wrapper (for Paste As Quotation), | |
| // so search for the top level style span instead of assuming it's at the top. | |
| for (Node* node = m_firstNodeInserted.get(); node; node = node->traverseNextNode()) { | |
| if (isStyleSpan(node)) { | |
| sourceDocumentStyleSpan = node; | |
| // If the copied Range's common ancestor had user applied inheritable styles | |
| // on it, they'll be on a second style span, just below the one that holds the | |
| // document defaults. | |
| if (isStyleSpan(node->firstChild())) | |
| copiedRangeStyleSpan = node->firstChild(); | |
| break; | |
| } | |
| } | |
| // There might not be any style spans if we're pasting from another application or if | |
| // we are here because of a document.execCommand("InsertHTML", ...) call. | |
| if (!sourceDocumentStyleSpan) | |
| return; | |
| RefPtr<CSSMutableStyleDeclaration> sourceDocumentStyle = static_cast<HTMLElement*>(sourceDocumentStyleSpan)->getInlineStyleDecl()->copy(); | |
| Node* context = sourceDocumentStyleSpan->parentNode(); | |
| // If Mail wraps the fragment with a Paste as Quotation blockquote, or if you're pasting into a quoted region, | |
| // styles from blockquoteNode are allowed to override those from the source document, see <rdar://problem/4930986> and <rdar://problem/5089327>. | |
| Node* blockquoteNode = isMailPasteAsQuotationNode(context) ? context : nearestMailBlockquote(context); | |
| if (blockquoteNode) { | |
| RefPtr<CSSMutableStyleDeclaration> blockquoteStyle = editingStyleAtPosition(Position(blockquoteNode, 0)); | |
| RefPtr<CSSMutableStyleDeclaration> parentStyle = editingStyleAtPosition(Position(blockquoteNode->parentNode(), 0)); | |
| parentStyle->diff(blockquoteStyle.get()); | |
| CSSMutableStyleDeclaration::const_iterator end = blockquoteStyle->end(); | |
| for (CSSMutableStyleDeclaration::const_iterator it = blockquoteStyle->begin(); it != end; ++it) { | |
| const CSSProperty& property = *it; | |
| sourceDocumentStyle->removeProperty(property.id()); | |
| } | |
| context = blockquoteNode->parentNode(); | |
| } | |
| // This operation requires that only editing styles to be removed from sourceDocumentStyle. | |
| prepareEditingStyleToApplyAt(sourceDocumentStyle.get(), Position(context, 0)); | |
| // Remove block properties in the span's style. This prevents properties that probably have no effect | |
| // currently from affecting blocks later if the style is cloned for a new block element during a future | |
| // editing operation. | |
| // FIXME: They *can* have an effect currently if blocks beneath the style span aren't individually marked | |
| // with block styles by the editing engine used to style them. WebKit doesn't do this, but others might. | |
| sourceDocumentStyle->removeBlockProperties(); | |
| // The styles on sourceDocumentStyleSpan are all redundant, and there is no copiedRangeStyleSpan | |
| // to consider. We're finished. | |
| if (sourceDocumentStyle->length() == 0 && !copiedRangeStyleSpan) { | |
| removeNodePreservingChildren(sourceDocumentStyleSpan); | |
| return; | |
| } | |
| // There are non-redundant styles on sourceDocumentStyleSpan, but there is no | |
| // copiedRangeStyleSpan. Remove the span, because it could be surrounding block elements, | |
| // and apply the styles to its children. | |
| if (sourceDocumentStyle->length() > 0 && !copiedRangeStyleSpan) { | |
| copyStyleToChildren(sourceDocumentStyleSpan, sourceDocumentStyle.get()); | |
| removeNodePreservingChildren(sourceDocumentStyleSpan); | |
| return; | |
| } | |
| RefPtr<CSSMutableStyleDeclaration> copiedRangeStyle = static_cast<HTMLElement*>(copiedRangeStyleSpan)->getInlineStyleDecl()->copy(); | |
| // We're going to put sourceDocumentStyleSpan's non-redundant styles onto copiedRangeStyleSpan, | |
| // as long as they aren't overridden by ones on copiedRangeStyleSpan. | |
| sourceDocumentStyle->merge(copiedRangeStyle.get(), true); | |
| copiedRangeStyle = sourceDocumentStyle; | |
| removeNodePreservingChildren(sourceDocumentStyleSpan); | |
| // Remove redundant styles. | |
| context = copiedRangeStyleSpan->parentNode(); | |
| prepareEditingStyleToApplyAt(copiedRangeStyle.get(), Position(context, 0)); | |
| // See the comments above about removing block properties. | |
| copiedRangeStyle->removeBlockProperties(); | |
| // All the styles on copiedRangeStyleSpan are redundant, remove it. | |
| if (copiedRangeStyle->length() == 0) { | |
| removeNodePreservingChildren(copiedRangeStyleSpan); | |
| return; | |
| } | |
| // Clear the redundant styles from the span's style attribute. | |
| // FIXME: If font-family:-webkit-monospace is non-redundant, then the font-size should stay, even if it | |
| // appears redundant. | |
| setNodeAttribute(static_cast<Element*>(copiedRangeStyleSpan), styleAttr, copiedRangeStyle->cssText()); | |
| } | |
| // Take the style attribute of a span and apply it to it's children instead. This allows us to | |
| // convert invalid HTML where a span contains block elements into valid HTML while preserving | |
| // styles. | |
| void ReplaceSelectionCommand::copyStyleToChildren(Node* parentNode, const CSSMutableStyleDeclaration* parentStyle) | |
| { | |
| ASSERT(parentNode->hasTagName(spanTag)); | |
| for (Node* childNode = parentNode->firstChild(); childNode; childNode = childNode->nextSibling()) { | |
| if (childNode->isTextNode() || !isBlock(childNode) || childNode->hasTagName(preTag)) { | |
| // In this case, put a span tag around the child node. | |
| RefPtr<Node> newSpan = parentNode->cloneNode(false); | |
| setNodeAttribute(static_cast<Element*>(newSpan.get()), styleAttr, parentStyle->cssText()); | |
| insertNodeAfter(newSpan, childNode); | |
| ExceptionCode ec = 0; | |
| newSpan->appendChild(childNode, ec); | |
| ASSERT(!ec); | |
| childNode = newSpan.get(); | |
| } else if (childNode->isHTMLElement()) { | |
| // Copy the style attribute and merge them into the child node. We don't want to override | |
| // existing styles, so don't clobber on merge. | |
| RefPtr<CSSMutableStyleDeclaration> newStyle = parentStyle->copy(); | |
| HTMLElement* childElement = static_cast<HTMLElement*>(childNode); | |
| RefPtr<CSSMutableStyleDeclaration> existingStyles = childElement->getInlineStyleDecl()->copy(); | |
| existingStyles->merge(newStyle.get(), false); | |
| setNodeAttribute(childElement, styleAttr, existingStyles->cssText()); | |
| } | |
| } | |
| } | |
| void ReplaceSelectionCommand::mergeEndIfNeeded() | |
| { | |
| if (!m_shouldMergeEnd) | |
| return; | |
| VisiblePosition startOfInsertedContent(positionAtStartOfInsertedContent()); | |
| VisiblePosition endOfInsertedContent(positionAtEndOfInsertedContent()); | |
| // Bail to avoid infinite recursion. | |
| if (m_movingParagraph) { | |
| ASSERT_NOT_REACHED(); | |
| return; | |
| } | |
| // Merging two paragraphs will destroy the moved one's block styles. Always move the end of inserted forward | |
| // to preserve the block style of the paragraph already in the document, unless the paragraph to move would | |
| // include the what was the start of the selection that was pasted into, so that we preserve that paragraph's | |
| // block styles. | |
| bool mergeForward = !(inSameParagraph(startOfInsertedContent, endOfInsertedContent) && !isStartOfParagraph(startOfInsertedContent)); | |
| VisiblePosition destination = mergeForward ? endOfInsertedContent.next() : endOfInsertedContent; | |
| VisiblePosition startOfParagraphToMove = mergeForward ? startOfParagraph(endOfInsertedContent) : endOfInsertedContent.next(); | |
| // Merging forward could result in deleting the destination anchor node. | |
| // To avoid this, we add a placeholder node before the start of the paragraph. | |
| if (endOfParagraph(startOfParagraphToMove) == destination) { | |
| RefPtr<Node> placeholder = createBreakElement(document()); | |
| insertNodeBefore(placeholder, startOfParagraphToMove.deepEquivalent().node()); | |
| destination = VisiblePosition(Position(placeholder.get(), 0)); | |
| } | |
| moveParagraph(startOfParagraphToMove, endOfParagraph(startOfParagraphToMove), destination); | |
| // Merging forward will remove m_lastLeafInserted from the document. | |
| // FIXME: Maintain positions for the start and end of inserted content instead of keeping nodes. The nodes are | |
| // only ever used to create positions where inserted content starts/ends. Also, we sometimes insert content | |
| // directly into text nodes already in the document, in which case tracking inserted nodes is inadequate. | |
| if (mergeForward) { | |
| m_lastLeafInserted = destination.previous().deepEquivalent().node(); | |
| if (!m_firstNodeInserted->inDocument()) | |
| m_firstNodeInserted = endingSelection().visibleStart().deepEquivalent().node(); | |
| // If we merged text nodes, m_lastLeafInserted could be null. If this is the case, | |
| // we use m_firstNodeInserted. | |
| if (!m_lastLeafInserted) | |
| m_lastLeafInserted = m_firstNodeInserted; | |
| } | |
| } | |
| void ReplaceSelectionCommand::doApply() | |
| { | |
| VisibleSelection selection = endingSelection(); | |
| ASSERT(selection.isCaretOrRange()); | |
| ASSERT(selection.start().node()); | |
| if (selection.isNone() || !selection.start().node()) | |
| return; | |
| bool selectionIsPlainText = !selection.isContentRichlyEditable(); | |
| Element* currentRoot = selection.rootEditableElement(); | |
| ReplacementFragment fragment(document(), m_documentFragment.get(), m_matchStyle, selection); | |
| if (performTrivialReplace(fragment)) | |
| return; | |
| if (m_matchStyle) | |
| m_insertionStyle = editingStyleAtPosition(selection.start(), IncludeTypingStyle); | |
| VisiblePosition visibleStart = selection.visibleStart(); | |
| VisiblePosition visibleEnd = selection.visibleEnd(); | |
| bool selectionEndWasEndOfParagraph = isEndOfParagraph(visibleEnd); | |
| bool selectionStartWasStartOfParagraph = isStartOfParagraph(visibleStart); | |
| Node* startBlock = enclosingBlock(visibleStart.deepEquivalent().node()); | |
| Position insertionPos = selection.start(); | |
| bool startIsInsideMailBlockquote = nearestMailBlockquote(insertionPos.node()); | |
| if ((selectionStartWasStartOfParagraph && selectionEndWasEndOfParagraph && !startIsInsideMailBlockquote) || | |
| startBlock == currentRoot || isListItem(startBlock) || selectionIsPlainText) | |
| m_preventNesting = false; | |
| if (selection.isRange()) { | |
| // When the end of the selection being pasted into is at the end of a paragraph, and that selection | |
| // spans multiple blocks, not merging may leave an empty line. | |
| // When the start of the selection being pasted into is at the start of a block, not merging | |
| // will leave hanging block(s). | |
| // Merge blocks if the start of the selection was in a Mail blockquote, since we handle | |
| // that case specially to prevent nesting. | |
| bool mergeBlocksAfterDelete = startIsInsideMailBlockquote || isEndOfParagraph(visibleEnd) || isStartOfBlock(visibleStart); | |
| // FIXME: We should only expand to include fully selected special elements if we are copying a | |
| // selection and pasting it on top of itself. | |
| deleteSelection(false, mergeBlocksAfterDelete, true, false); | |
| visibleStart = endingSelection().visibleStart(); | |
| if (fragment.hasInterchangeNewlineAtStart()) { | |
| if (isEndOfParagraph(visibleStart) && !isStartOfParagraph(visibleStart)) { | |
| if (!isEndOfDocument(visibleStart)) | |
| setEndingSelection(visibleStart.next()); | |
| } else | |
| insertParagraphSeparator(); | |
| } | |
| insertionPos = endingSelection().start(); | |
| } else { | |
| ASSERT(selection.isCaret()); | |
| if (fragment.hasInterchangeNewlineAtStart()) { | |
| VisiblePosition next = visibleStart.next(true); | |
| if (isEndOfParagraph(visibleStart) && !isStartOfParagraph(visibleStart) && next.isNotNull()) | |
| setEndingSelection(next); | |
| else | |
| insertParagraphSeparator(); | |
| } | |
| // We split the current paragraph in two to avoid nesting the blocks from the fragment inside the current block. | |
| // For example paste <div>foo</div><div>bar</div><div>baz</div> into <div>x^x</div>, where ^ is the caret. | |
| // As long as the div styles are the same, visually you'd expect: <div>xbar</div><div>bar</div><div>bazx</div>, | |
| // not <div>xbar<div>bar</div><div>bazx</div></div>. | |
| // Don't do this if the selection started in a Mail blockquote. | |
| if (m_preventNesting && !startIsInsideMailBlockquote && !isEndOfParagraph(visibleStart) && !isStartOfParagraph(visibleStart)) { | |
| insertParagraphSeparator(); | |
| setEndingSelection(endingSelection().visibleStart().previous()); | |
| } | |
| insertionPos = endingSelection().start(); | |
| } | |
| // We don't want any of the pasted content to end up nested in a Mail blockquote, so first break | |
| // out of any surrounding Mail blockquotes. Unless we're inserting in a table, in which case | |
| // breaking the blockquote will prevent the content from actually being inserted in the table. | |
| if (startIsInsideMailBlockquote && m_preventNesting && !(enclosingNodeOfType(insertionPos, &isTableStructureNode))) { | |
| applyCommandToComposite(BreakBlockquoteCommand::create(document())); | |
| // This will leave a br between the split. | |
| Node* br = endingSelection().start().node(); | |
| ASSERT(br->hasTagName(brTag)); | |
| // Insert content between the two blockquotes, but remove the br (since it was just a placeholder). | |
| insertionPos = positionInParentBeforeNode(br); | |
| removeNode(br); | |
| } | |
| // Inserting content could cause whitespace to collapse, e.g. inserting <div>foo</div> into hello^ world. | |
| prepareWhitespaceAtPositionForSplit(insertionPos); | |
| // NOTE: This would be an incorrect usage of downstream() if downstream() were changed to mean the last position after | |
| // p that maps to the same visible position as p (since in the case where a br is at the end of a block and collapsed | |
| // away, there are positions after the br which map to the same visible position as [br, 0]). | |
| Node* endBR = insertionPos.downstream().node()->hasTagName(brTag) ? insertionPos.downstream().node() : 0; | |
| VisiblePosition originalVisPosBeforeEndBR; | |
| if (endBR) | |
| originalVisPosBeforeEndBR = VisiblePosition(endBR, 0, DOWNSTREAM).previous(); | |
| startBlock = enclosingBlock(insertionPos.node()); | |
| // Adjust insertionPos to prevent nesting. | |
| // If the start was in a Mail blockquote, we will have already handled adjusting insertionPos above. | |
| if (m_preventNesting && startBlock && !startIsInsideMailBlockquote) { | |
| ASSERT(startBlock != currentRoot); | |
| VisiblePosition visibleInsertionPos(insertionPos); | |
| if (isEndOfBlock(visibleInsertionPos) && !(isStartOfBlock(visibleInsertionPos) && fragment.hasInterchangeNewlineAtEnd())) | |
| insertionPos = positionInParentAfterNode(startBlock); | |
| else if (isStartOfBlock(visibleInsertionPos)) | |
| insertionPos = positionInParentBeforeNode(startBlock); | |
| } | |
| // Paste into run of tabs splits the tab span. | |
| insertionPos = positionOutsideTabSpan(insertionPos); | |
| // Paste at start or end of link goes outside of link. | |
| insertionPos = positionAvoidingSpecialElementBoundary(insertionPos); | |
| // FIXME: Can this wait until after the operation has been performed? There doesn't seem to be | |
| // any work performed after this that queries or uses the typing style. | |
| if (Frame* frame = document()->frame()) | |
| frame->clearTypingStyle(); | |
| bool handledStyleSpans = handleStyleSpansBeforeInsertion(fragment, insertionPos); | |
| // We don't want the destination to end up inside nodes that weren't selected. To avoid that, we move the | |
| // position forward without changing the visible position so we're still at the same visible location, but | |
| // outside of preceding tags. | |
| insertionPos = positionAvoidingPrecedingNodes(insertionPos); | |
| // FIXME: When pasting rich content we're often prevented from heading down the fast path by style spans. Try | |
| // again here if they've been removed. | |
| // We're finished if there is nothing to add. | |
| if (fragment.isEmpty() || !fragment.firstChild()) | |
| return; | |
| // 1) Insert the content. | |
| // 2) Remove redundant styles and style tags, this inner <b> for example: <b>foo <b>bar</b> baz</b>. | |
| // 3) Merge the start of the added content with the content before the position being pasted into. | |
| // 4) Do one of the following: a) expand the last br if the fragment ends with one and it collapsed, | |
| // b) merge the last paragraph of the incoming fragment with the paragraph that contained the | |
| // end of the selection that was pasted into, or c) handle an interchange newline at the end of the | |
| // incoming fragment. | |
| // 5) Add spaces for smart replace. | |
| // 6) Select the replacement if requested, and match style if requested. | |
| VisiblePosition startOfInsertedContent, endOfInsertedContent; | |
| RefPtr<Node> refNode = fragment.firstChild(); | |
| RefPtr<Node> node = refNode->nextSibling(); | |
| fragment.removeNode(refNode); | |
| Node* blockStart = enclosingBlock(insertionPos.node()); | |
| if ((isListElement(refNode.get()) || (isStyleSpan(refNode.get()) && isListElement(refNode->firstChild()))) | |
| && blockStart->renderer()->isListItem()) | |
| refNode = insertAsListItems(refNode, blockStart, insertionPos); | |
| else | |
| insertNodeAtAndUpdateNodesInserted(refNode, insertionPos); | |
| // Mutation events (bug 22634) may have already removed the inserted content | |
| if (!refNode->inDocument()) | |
| return; | |
| bool plainTextFragment = isPlainTextMarkup(refNode.get()); | |
| while (node) { | |
| Node* next = node->nextSibling(); | |
| fragment.removeNode(node); | |
| insertNodeAfterAndUpdateNodesInserted(node, refNode.get()); | |
| // Mutation events (bug 22634) may have already removed the inserted content | |
| if (!node->inDocument()) | |
| return; | |
| refNode = node; | |
| if (node && plainTextFragment) | |
| plainTextFragment = isPlainTextMarkup(node.get()); | |
| node = next; | |
| } | |
| removeUnrenderedTextNodesAtEnds(); | |
| negateStyleRulesThatAffectAppearance(); | |
| if (!handledStyleSpans) | |
| handleStyleSpans(); | |
| // Mutation events (bug 20161) may have already removed the inserted content | |
| if (!m_firstNodeInserted || !m_firstNodeInserted->inDocument()) | |
| return; | |
| endOfInsertedContent = positionAtEndOfInsertedContent(); | |
| startOfInsertedContent = positionAtStartOfInsertedContent(); | |
| // We inserted before the startBlock to prevent nesting, and the content before the startBlock wasn't in its own block and | |
| // didn't have a br after it, so the inserted content ended up in the same paragraph. | |
| if (startBlock && insertionPos.node() == startBlock->parentNode() && (unsigned)insertionPos.deprecatedEditingOffset() < startBlock->nodeIndex() && !isStartOfParagraph(startOfInsertedContent)) | |
| insertNodeAt(createBreakElement(document()).get(), startOfInsertedContent.deepEquivalent()); | |
| Position lastPositionToSelect; | |
| bool interchangeNewlineAtEnd = fragment.hasInterchangeNewlineAtEnd(); | |
| if (endBR && (plainTextFragment || shouldRemoveEndBR(endBR, originalVisPosBeforeEndBR))) | |
| removeNodeAndPruneAncestors(endBR); | |
| // Determine whether or not we should merge the end of inserted content with what's after it before we do | |
| // the start merge so that the start merge doesn't effect our decision. | |
| m_shouldMergeEnd = shouldMergeEnd(selectionEndWasEndOfParagraph); | |
| if (shouldMergeStart(selectionStartWasStartOfParagraph, fragment.hasInterchangeNewlineAtStart(), startIsInsideMailBlockquote)) { | |
| VisiblePosition destination = startOfInsertedContent.previous(); | |
| VisiblePosition startOfParagraphToMove = startOfInsertedContent; | |
| // Merging the the first paragraph of inserted content with the content that came | |
| // before the selection that was pasted into would also move content after | |
| // the selection that was pasted into if: only one paragraph was being pasted, | |
| // and it was not wrapped in a block, the selection that was pasted into ended | |
| // at the end of a block and the next paragraph didn't start at the start of a block. | |
| // Insert a line break just after the inserted content to separate it from what | |
| // comes after and prevent that from happening. | |
| VisiblePosition endOfInsertedContent = positionAtEndOfInsertedContent(); | |
| if (startOfParagraph(endOfInsertedContent) == startOfParagraphToMove) { | |
| insertNodeAt(createBreakElement(document()).get(), endOfInsertedContent.deepEquivalent()); | |
| // Mutation events (bug 22634) triggered by inserting the <br> might have removed the content we're about to move | |
| if (!startOfParagraphToMove.deepEquivalent().node()->inDocument()) | |
| return; | |
| } | |
| // FIXME: Maintain positions for the start and end of inserted content instead of keeping nodes. The nodes are | |
| // only ever used to create positions where inserted content starts/ends. | |
| moveParagraph(startOfParagraphToMove, endOfParagraph(startOfParagraphToMove), destination); | |
| m_firstNodeInserted = endingSelection().visibleStart().deepEquivalent().downstream().node(); | |
| if (!m_lastLeafInserted->inDocument()) | |
| m_lastLeafInserted = endingSelection().visibleEnd().deepEquivalent().upstream().node(); | |
| } | |
| endOfInsertedContent = positionAtEndOfInsertedContent(); | |
| startOfInsertedContent = positionAtStartOfInsertedContent(); | |
| if (interchangeNewlineAtEnd) { | |
| VisiblePosition next = endOfInsertedContent.next(true); | |
| if (selectionEndWasEndOfParagraph || !isEndOfParagraph(endOfInsertedContent) || next.isNull()) { | |
| if (!isStartOfParagraph(endOfInsertedContent)) { | |
| setEndingSelection(endOfInsertedContent); | |
| Node* enclosingNode = enclosingBlock(endOfInsertedContent.deepEquivalent().node()); | |
| if (isListItem(enclosingNode)) { | |
| RefPtr<Node> newListItem = createListItemElement(document()); | |
| insertNodeAfter(newListItem, enclosingNode); | |
| setEndingSelection(VisiblePosition(Position(newListItem, 0))); | |
| } else | |
| // Use a default paragraph element (a plain div) for the empty paragraph, using the last paragraph | |
| // block's style seems to annoy users. | |
| insertParagraphSeparator(true); | |
| // Select up to the paragraph separator that was added. | |
| lastPositionToSelect = endingSelection().visibleStart().deepEquivalent(); | |
| updateNodesInserted(lastPositionToSelect.node()); | |
| } | |
| } else { | |
| // Select up to the beginning of the next paragraph. | |
| lastPositionToSelect = next.deepEquivalent().downstream(); | |
| } | |
| } else | |
| mergeEndIfNeeded(); | |
| handlePasteAsQuotationNode(); | |
| endOfInsertedContent = positionAtEndOfInsertedContent(); | |
| startOfInsertedContent = positionAtStartOfInsertedContent(); | |
| // Add spaces for smart replace. | |
| if (m_smartReplace && currentRoot) { | |
| // Disable smart replace for password fields. | |
| Node* start = currentRoot->shadowAncestorNode(); | |
| if (start->hasTagName(inputTag) && static_cast<HTMLInputElement*>(start)->inputType() == HTMLInputElement::PASSWORD) | |
| m_smartReplace = false; | |
| } | |
| if (m_smartReplace) { | |
| bool needsTrailingSpace = !isEndOfParagraph(endOfInsertedContent) && | |
| !isCharacterSmartReplaceExempt(endOfInsertedContent.characterAfter(), false); | |
| if (needsTrailingSpace) { | |
| RenderObject* renderer = m_lastLeafInserted->renderer(); | |
| bool collapseWhiteSpace = !renderer || renderer->style()->collapseWhiteSpace(); | |
| Node* endNode = positionAtEndOfInsertedContent().deepEquivalent().upstream().node(); | |
| if (endNode->isTextNode()) { | |
| Text* text = static_cast<Text*>(endNode); | |
| insertTextIntoNode(text, text->length(), collapseWhiteSpace ? nonBreakingSpaceString() : " "); | |
| } else { | |
| RefPtr<Node> node = document()->createEditingTextNode(collapseWhiteSpace ? nonBreakingSpaceString() : " "); | |
| insertNodeAfterAndUpdateNodesInserted(node, endNode); | |
| } | |
| } | |
| bool needsLeadingSpace = !isStartOfParagraph(startOfInsertedContent) && | |
| !isCharacterSmartReplaceExempt(startOfInsertedContent.previous().characterAfter(), true); | |
| if (needsLeadingSpace) { | |
| RenderObject* renderer = m_lastLeafInserted->renderer(); | |
| bool collapseWhiteSpace = !renderer || renderer->style()->collapseWhiteSpace(); | |
| Node* startNode = positionAtStartOfInsertedContent().deepEquivalent().downstream().node(); | |
| if (startNode->isTextNode()) { | |
| Text* text = static_cast<Text*>(startNode); | |
| insertTextIntoNode(text, 0, collapseWhiteSpace ? nonBreakingSpaceString() : " "); | |
| } else { | |
| RefPtr<Node> node = document()->createEditingTextNode(collapseWhiteSpace ? nonBreakingSpaceString() : " "); | |
| // Don't updateNodesInserted. Doing so would set m_lastLeafInserted to be the node containing the | |
| // leading space, but m_lastLeafInserted is supposed to mark the end of pasted content. | |
| insertNodeBefore(node, startNode); | |
| // FIXME: Use positions to track the start/end of inserted content. | |
| m_firstNodeInserted = node; | |
| } | |
| } | |
| } | |
| // If we are dealing with a fragment created from plain text | |
| // no style matching is necessary. | |
| if (plainTextFragment) | |
| m_matchStyle = false; | |
| completeHTMLReplacement(lastPositionToSelect); | |
| } | |
| bool ReplaceSelectionCommand::shouldRemoveEndBR(Node* endBR, const VisiblePosition& originalVisPosBeforeEndBR) | |
| { | |
| if (!endBR || !endBR->inDocument()) | |
| return false; | |
| VisiblePosition visiblePos(Position(endBR, 0)); | |
| // Don't remove the br if nothing was inserted. | |
| if (visiblePos.previous() == originalVisPosBeforeEndBR) | |
| return false; | |
| // Remove the br if it is collapsed away and so is unnecessary. | |
| if (!document()->inStrictMode() && isEndOfBlock(visiblePos) && !isStartOfParagraph(visiblePos)) | |
| return true; | |
| // A br that was originally holding a line open should be displaced by inserted content or turned into a line break. | |
| // A br that was originally acting as a line break should still be acting as a line break, not as a placeholder. | |
| return isStartOfParagraph(visiblePos) && isEndOfParagraph(visiblePos); | |
| } | |
| void ReplaceSelectionCommand::completeHTMLReplacement(const Position &lastPositionToSelect) | |
| { | |
| Position start; | |
| Position end; | |
| // FIXME: This should never not be the case. | |
| if (m_firstNodeInserted && m_firstNodeInserted->inDocument() && m_lastLeafInserted && m_lastLeafInserted->inDocument()) { | |
| start = positionAtStartOfInsertedContent().deepEquivalent(); | |
| end = positionAtEndOfInsertedContent().deepEquivalent(); | |
| // FIXME (11475): Remove this and require that the creator of the fragment to use nbsps. | |
| rebalanceWhitespaceAt(start); | |
| rebalanceWhitespaceAt(end); | |
| if (m_matchStyle) { | |
| ASSERT(m_insertionStyle); | |
| applyStyle(m_insertionStyle.get(), start, end); | |
| } | |
| if (lastPositionToSelect.isNotNull()) | |
| end = lastPositionToSelect; | |
| } else if (lastPositionToSelect.isNotNull()) | |
| start = end = lastPositionToSelect; | |
| else | |
| return; | |
| if (m_selectReplacement) | |
| setEndingSelection(VisibleSelection(start, end, SEL_DEFAULT_AFFINITY)); | |
| else | |
| setEndingSelection(VisibleSelection(end, SEL_DEFAULT_AFFINITY)); | |
| } | |
| EditAction ReplaceSelectionCommand::editingAction() const | |
| { | |
| return m_editAction; | |
| } | |
| void ReplaceSelectionCommand::insertNodeAfterAndUpdateNodesInserted(PassRefPtr<Node> insertChild, Node* refChild) | |
| { | |
| Node* nodeToUpdate = insertChild.get(); // insertChild will be cleared when passed | |
| insertNodeAfter(insertChild, refChild); | |
| updateNodesInserted(nodeToUpdate); | |
| } | |
| void ReplaceSelectionCommand::insertNodeAtAndUpdateNodesInserted(PassRefPtr<Node> insertChild, const Position& p) | |
| { | |
| Node* nodeToUpdate = insertChild.get(); // insertChild will be cleared when passed | |
| insertNodeAt(insertChild, p); | |
| updateNodesInserted(nodeToUpdate); | |
| } | |
| void ReplaceSelectionCommand::insertNodeBeforeAndUpdateNodesInserted(PassRefPtr<Node> insertChild, Node* refChild) | |
| { | |
| Node* nodeToUpdate = insertChild.get(); // insertChild will be cleared when passed | |
| insertNodeBefore(insertChild, refChild); | |
| updateNodesInserted(nodeToUpdate); | |
| } | |
| // If the user is inserting a list into an existing list, instead of nesting the list, | |
| // we put the list items into the existing list. | |
| Node* ReplaceSelectionCommand::insertAsListItems(PassRefPtr<Node> listElement, Node* insertionBlock, const Position& insertPos) | |
| { | |
| while (listElement->hasChildNodes() && isListElement(listElement->firstChild()) && listElement->childNodeCount() == 1) | |
| listElement = listElement->firstChild(); | |
| bool isStart = isStartOfParagraph(insertPos); | |
| bool isEnd = isEndOfParagraph(insertPos); | |
| bool isMiddle = !isStart && !isEnd; | |
| Node* lastNode = insertionBlock; | |
| // If we're in the middle of a list item, we should split it into two separate | |
| // list items and insert these nodes between them. | |
| if (isMiddle) { | |
| int textNodeOffset = insertPos.offsetInContainerNode(); | |
| if (insertPos.node()->isTextNode() && textNodeOffset > 0) | |
| splitTextNode(static_cast<Text*>(insertPos.node()), textNodeOffset); | |
| splitTreeToNode(insertPos.node(), lastNode, true); | |
| } | |
| while (RefPtr<Node> listItem = listElement->firstChild()) { | |
| ExceptionCode ec = 0; | |
| listElement->removeChild(listItem.get(), ec); | |
| ASSERT(!ec); | |
| if (isStart || isMiddle) | |
| insertNodeBefore(listItem, lastNode); | |
| else if (isEnd) { | |
| insertNodeAfter(listItem, lastNode); | |
| lastNode = listItem.get(); | |
| } else | |
| ASSERT_NOT_REACHED(); | |
| } | |
| if (isStart || isMiddle) | |
| lastNode = lastNode->previousSibling(); | |
| if (isMiddle) | |
| insertNodeAfter(createListItemElement(document()), lastNode); | |
| updateNodesInserted(lastNode); | |
| return lastNode; | |
| } | |
| void ReplaceSelectionCommand::updateNodesInserted(Node *node) | |
| { | |
| if (!node) | |
| return; | |
| if (!m_firstNodeInserted) | |
| m_firstNodeInserted = node; | |
| if (node == m_lastLeafInserted) | |
| return; | |
| m_lastLeafInserted = node->lastDescendant(); | |
| } | |
| // During simple pastes, where we're just pasting a text node into a run of text, we insert the text node | |
| // directly into the text node that holds the selection. This is much faster than the generalized code in | |
| // ReplaceSelectionCommand, and works around <https://bugs.webkit.org/show_bug.cgi?id=6148> since we don't | |
| // split text nodes. | |
| bool ReplaceSelectionCommand::performTrivialReplace(const ReplacementFragment& fragment) | |
| { | |
| if (!fragment.firstChild() || fragment.firstChild() != fragment.lastChild() || !fragment.firstChild()->isTextNode()) | |
| return false; | |
| // FIXME: Would be nice to handle smart replace in the fast path. | |
| if (m_smartReplace || fragment.hasInterchangeNewlineAtStart() || fragment.hasInterchangeNewlineAtEnd()) | |
| return false; | |
| Text* textNode = static_cast<Text*>(fragment.firstChild()); | |
| // Our fragment creation code handles tabs, spaces, and newlines, so we don't have to worry about those here. | |
| String text(textNode->data()); | |
| Position start = endingSelection().start(); | |
| Position end = endingSelection().end(); | |
| if (start.anchorNode() != end.anchorNode() || !start.anchorNode()->isTextNode()) | |
| return false; | |
| replaceTextInNode(static_cast<Text*>(start.anchorNode()), start.offsetInContainerNode(), end.offsetInContainerNode() - start.offsetInContainerNode(), text); | |
| end = Position(start.anchorNode(), start.offsetInContainerNode() + text.length()); | |
| VisibleSelection selectionAfterReplace(m_selectReplacement ? start : end, end); | |
| setEndingSelection(selectionAfterReplace); | |
| return true; | |
| } | |
| } // namespace WebCore |