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      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 "CompositeEditCommand.h"
     30 
     31 namespace WebCore {
     32 
     33 class DocumentFragment;
     34 class ReplacementFragment;
     35 
     36 class ReplaceSelectionCommand : public CompositeEditCommand {
     37 public:
     38     static PassRefPtr<ReplaceSelectionCommand> create(Document* document, PassRefPtr<DocumentFragment> fragment,
     39         bool selectReplacement = true, bool smartReplace = false, bool matchStyle = false, bool preventNesting = true, bool movingParagraph = false,
     40         EditAction action = EditActionPaste)
     41     {
     42         return adoptRef(new ReplaceSelectionCommand(document, fragment, selectReplacement, smartReplace, matchStyle, preventNesting, movingParagraph, action));
     43     }
     44 
     45 private:
     46     ReplaceSelectionCommand(Document*, PassRefPtr<DocumentFragment>,
     47         bool selectReplacement, bool smartReplace, bool matchStyle, bool preventNesting, bool movingParagraph, EditAction);
     48 
     49     virtual void doApply();
     50     virtual EditAction editingAction() const;
     51 
     52     void completeHTMLReplacement(const Position& lastPositionToSelect);
     53 
     54     void insertNodeAfterAndUpdateNodesInserted(PassRefPtr<Node> insertChild, Node* refChild);
     55     void insertNodeAtAndUpdateNodesInserted(PassRefPtr<Node>, const Position&);
     56     void insertNodeBeforeAndUpdateNodesInserted(PassRefPtr<Node> insertChild, Node* refChild);
     57     Node* insertAsListItems(PassRefPtr<Node>, Node* insertionNode, const Position&);
     58 
     59     void updateNodesInserted(Node*);
     60     bool shouldRemoveEndBR(Node*, const VisiblePosition&);
     61 
     62     bool shouldMergeStart(bool, bool, bool);
     63     bool shouldMergeEnd(bool selectEndWasEndOfParagraph);
     64     bool shouldMerge(const VisiblePosition&, const VisiblePosition&);
     65 
     66     void mergeEndIfNeeded();
     67 
     68     void removeUnrenderedTextNodesAtEnds();
     69 
     70     void negateStyleRulesThatAffectAppearance();
     71     void handleStyleSpans();
     72     void handlePasteAsQuotationNode();
     73 
     74     virtual void removeNodePreservingChildren(Node*);
     75     virtual void removeNodeAndPruneAncestors(Node*);
     76 
     77     VisiblePosition positionAtStartOfInsertedContent();
     78     VisiblePosition positionAtEndOfInsertedContent();
     79 
     80     bool performTrivialReplace(const ReplacementFragment&);
     81 
     82     RefPtr<Node> m_firstNodeInserted;
     83     RefPtr<Node> m_lastLeafInserted;
     84     RefPtr<CSSMutableStyleDeclaration> m_insertionStyle;
     85     bool m_selectReplacement;
     86     bool m_smartReplace;
     87     bool m_matchStyle;
     88     RefPtr<DocumentFragment> m_documentFragment;
     89     bool m_preventNesting;
     90     bool m_movingParagraph;
     91     EditAction m_editAction;
     92     bool m_shouldMergeEnd;
     93 };
     94 
     95 } // namespace WebCore
     96 
     97 #endif // ReplaceSelectionCommand_h
     98