WebCore/ReplaceSelectionCommand.h

   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
  58     void updateNodesInserted(Node*);
  59     bool shouldRemoveEndBR(Node*, const VisiblePosition&);
  60
  61     bool shouldMergeStart(bool, bool);
  62     bool shouldMergeEnd(bool selectEndWasEndOfParagraph);
  63     bool shouldMerge(const VisiblePosition&, const VisiblePosition&);
  64
  65     void mergeEndIfNeeded();
  66
  67     void removeUnrenderedTextNodesAtEnds();
  68
  69     void negateStyleRulesThatAffectAppearance();
  70     void handleStyleSpans();
  71     void handlePasteAsQuotationNode();
  72
  73     virtual void removeNodePreservingChildren(Node*);
  74     virtual void removeNodeAndPruneAncestors(Node*);
  75
  76     VisiblePosition positionAtStartOfInsertedContent();
  77     VisiblePosition positionAtEndOfInsertedContent();
  78
  79     bool performTrivialReplace(const ReplacementFragment&);
  80
  81     RefPtr<Node> m_firstNodeInserted;
  82     RefPtr<Node> m_lastLeafInserted;
  83     RefPtr<CSSMutableStyleDeclaration> m_insertionStyle;
  84     bool m_selectReplacement;
  85     bool m_smartReplace;
  86     bool m_matchStyle;
  87     RefPtr<DocumentFragment> m_documentFragment;
  88     bool m_preventNesting;
  89     bool m_movingParagraph;
  90     EditAction m_editAction;
  91     bool m_shouldMergeEnd;
  92 };
  93
  94 } // namespace WebCore
  95
  96 #endif // ReplaceSelectionCommand_h