1 /* 2 * Copyright (C) 2005, 2006, 2008 Apple 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 #ifndef ReplaceSelectionCommand_h 27 #define ReplaceSelectionCommand_h 28 29 #include "core/dom/NodeTraversal.h" 30 #include "core/editing/CompositeEditCommand.h" 31 32 namespace WebCore { 33 34 class DocumentFragment; 35 class ReplacementFragment; 36 37 class ReplaceSelectionCommand : public CompositeEditCommand { 38 public: 39 enum CommandOption { 40 SelectReplacement = 1 << 0, 41 SmartReplace = 1 << 1, 42 MatchStyle = 1 << 2, 43 PreventNesting = 1 << 3, 44 MovingParagraph = 1 << 4, 45 SanitizeFragment = 1 << 5 46 }; 47 48 typedef unsigned CommandOptions; 49 50 static PassRefPtr<ReplaceSelectionCommand> create(Document& document, PassRefPtr<DocumentFragment> fragment, CommandOptions options, EditAction action = EditActionPaste) 51 { 52 return adoptRef(new ReplaceSelectionCommand(document, fragment, options, action)); 53 } 54 55 private: 56 ReplaceSelectionCommand(Document&, PassRefPtr<DocumentFragment>, CommandOptions, EditAction); 57 58 virtual void doApply(); 59 virtual EditAction editingAction() const; 60 61 class InsertedNodes { 62 public: 63 void respondToNodeInsertion(Node&); 64 void willRemoveNodePreservingChildren(Node&); 65 void willRemoveNode(Node&); 66 void didReplaceNode(Node&, Node& newNode); 67 firstNodeInserted()68 Node* firstNodeInserted() const { return m_firstNodeInserted.get(); } lastLeafInserted()69 Node& lastLeafInserted() const { ASSERT(m_lastNodeInserted); return m_lastNodeInserted->lastDescendant(); } pastLastLeaf()70 Node* pastLastLeaf() const { return m_lastNodeInserted ? NodeTraversal::next(lastLeafInserted()) : 0; } 71 72 private: 73 RefPtr<Node> m_firstNodeInserted; 74 RefPtr<Node> m_lastNodeInserted; 75 }; 76 77 Node* insertAsListItems(PassRefPtr<HTMLElement> listElement, Node* insertionNode, const Position&, InsertedNodes&); 78 79 void updateNodesInserted(Node*); 80 bool shouldRemoveEndBR(Node*, const VisiblePosition&); 81 82 bool shouldMergeStart(bool, bool, bool); 83 bool shouldMergeEnd(bool selectionEndWasEndOfParagraph); 84 bool shouldMerge(const VisiblePosition&, const VisiblePosition&); 85 86 void mergeEndIfNeeded(); 87 88 void removeUnrenderedTextNodesAtEnds(InsertedNodes&); 89 90 void removeRedundantStylesAndKeepStyleSpanInline(InsertedNodes&); 91 void makeInsertedContentRoundTrippableWithHTMLTreeBuilder(InsertedNodes&); 92 void moveNodeOutOfAncestor(PassRefPtr<Node>, PassRefPtr<Node> ancestor); 93 void handleStyleSpans(InsertedNodes&); 94 void handlePasteAsQuotationNode(); 95 96 VisiblePosition positionAtStartOfInsertedContent() const; 97 VisiblePosition positionAtEndOfInsertedContent() const; 98 99 bool shouldPerformSmartReplace() const; 100 void addSpacesForSmartReplace(); 101 void completeHTMLReplacement(const Position& lastPositionToSelect); 102 void mergeTextNodesAroundPosition(Position&, Position& positionOnlyToBeUpdated); 103 104 bool performTrivialReplace(const ReplacementFragment&); 105 106 Position m_startOfInsertedContent; 107 Position m_endOfInsertedContent; 108 RefPtr<EditingStyle> m_insertionStyle; 109 bool m_selectReplacement; 110 bool m_smartReplace; 111 bool m_matchStyle; 112 RefPtr<DocumentFragment> m_documentFragment; 113 bool m_preventNesting; 114 bool m_movingParagraph; 115 EditAction m_editAction; 116 bool m_sanitizeFragment; 117 bool m_shouldMergeEnd; 118 }; 119 120 } // namespace WebCore 121 122 #endif // ReplaceSelectionCommand_h 123