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 FINAL : 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 PassRefPtrWillBeRawPtr<ReplaceSelectionCommand> create(Document& document, PassRefPtrWillBeRawPtr<DocumentFragment> fragment, CommandOptions options, EditAction action = EditActionPaste) 51 { 52 return adoptRefWillBeNoop(new ReplaceSelectionCommand(document, fragment, options, action)); 53 } 54 55 virtual void trace(Visitor*) OVERRIDE; 56 57 private: 58 ReplaceSelectionCommand(Document&, PassRefPtrWillBeRawPtr<DocumentFragment>, CommandOptions, EditAction); 59 60 virtual void doApply() OVERRIDE; 61 virtual EditAction editingAction() const OVERRIDE; 62 63 class InsertedNodes { 64 STACK_ALLOCATED(); 65 public: 66 void respondToNodeInsertion(Node&); 67 void willRemoveNodePreservingChildren(Node&); 68 void willRemoveNode(Node&); 69 void didReplaceNode(Node&, Node& newNode); 70 firstNodeInserted()71 Node* firstNodeInserted() const { return m_firstNodeInserted.get(); } lastLeafInserted()72 Node* lastLeafInserted() const { return m_lastNodeInserted ? &m_lastNodeInserted->lastDescendantOrSelf() : 0; } pastLastLeaf()73 Node* pastLastLeaf() const { return m_lastNodeInserted ? NodeTraversal::next(m_lastNodeInserted->lastDescendantOrSelf()) : 0; } 74 75 private: 76 RefPtrWillBeMember<Node> m_firstNodeInserted; 77 RefPtrWillBeMember<Node> m_lastNodeInserted; 78 }; 79 80 Node* insertAsListItems(PassRefPtrWillBeRawPtr<HTMLElement> listElement, Node* insertionNode, const Position&, InsertedNodes&); 81 82 void updateNodesInserted(Node*); 83 bool shouldRemoveEndBR(Node*, const VisiblePosition&); 84 85 bool shouldMergeStart(bool, bool, bool); 86 bool shouldMergeEnd(bool selectionEndWasEndOfParagraph); 87 bool shouldMerge(const VisiblePosition&, const VisiblePosition&); 88 89 void mergeEndIfNeeded(); 90 91 void removeUnrenderedTextNodesAtEnds(InsertedNodes&); 92 93 void removeRedundantStylesAndKeepStyleSpanInline(InsertedNodes&); 94 void makeInsertedContentRoundTrippableWithHTMLTreeBuilder(const InsertedNodes&); 95 void moveNodeOutOfAncestor(PassRefPtrWillBeRawPtr<Node>, PassRefPtrWillBeRawPtr<Node> ancestor); 96 void handleStyleSpans(InsertedNodes&); 97 98 VisiblePosition positionAtStartOfInsertedContent() const; 99 VisiblePosition positionAtEndOfInsertedContent() const; 100 101 bool shouldPerformSmartReplace() const; 102 void addSpacesForSmartReplace(); 103 void completeHTMLReplacement(const Position& lastPositionToSelect); 104 void mergeTextNodesAroundPosition(Position&, Position& positionOnlyToBeUpdated); 105 106 bool performTrivialReplace(const ReplacementFragment&); 107 108 Position m_startOfInsertedContent; 109 Position m_endOfInsertedContent; 110 RefPtrWillBeMember<EditingStyle> m_insertionStyle; 111 bool m_selectReplacement; 112 bool m_smartReplace; 113 bool m_matchStyle; 114 RefPtrWillBeMember<DocumentFragment> m_documentFragment; 115 bool m_preventNesting; 116 bool m_movingParagraph; 117 EditAction m_editAction; 118 bool m_sanitizeFragment; 119 bool m_shouldMergeEnd; 120 }; 121 122 } // namespace WebCore 123 124 #endif // ReplaceSelectionCommand_h 125