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 EditCommand_h 27 #define EditCommand_h 28 29 #include "EditAction.h" 30 #include "Element.h" 31 #include "VisibleSelection.h" 32 33 namespace WebCore { 34 35 class CompositeEditCommand; 36 37 class EditCommand : public RefCounted<EditCommand> { 38 public: 39 virtual ~EditCommand(); 40 41 void setParent(CompositeEditCommand*); 42 43 void apply(); 44 void unapply(); 45 void reapply(); 46 47 virtual EditAction editingAction() const; 48 49 const VisibleSelection& startingSelection() const { return m_startingSelection; } 50 const VisibleSelection& endingSelection() const { return m_endingSelection; } 51 52 Element* startingRootEditableElement() const { return m_startingRootEditableElement.get(); } 53 Element* endingRootEditableElement() const { return m_endingRootEditableElement.get(); } 54 55 virtual bool isInsertTextCommand() const; 56 virtual bool isTypingCommand() const; 57 58 virtual bool preservesTypingStyle() const; 59 60 bool isTopLevelCommand() const { return !m_parent; } 61 62 virtual bool shouldRetainAutocorrectionIndicator() const; 63 virtual void setShouldRetainAutocorrectionIndicator(bool); 64 65 protected: 66 EditCommand(Document*); 67 68 Document* document() const { return m_document.get(); } 69 70 void setStartingSelection(const VisibleSelection&); 71 void setEndingSelection(const VisibleSelection&); 72 73 void updateLayout() const; 74 75 private: 76 virtual void doApply() = 0; 77 virtual void doUnapply() = 0; 78 virtual void doReapply(); // calls doApply() 79 80 RefPtr<Document> m_document; 81 VisibleSelection m_startingSelection; 82 VisibleSelection m_endingSelection; 83 RefPtr<Element> m_startingRootEditableElement; 84 RefPtr<Element> m_endingRootEditableElement; 85 CompositeEditCommand* m_parent; 86 87 friend void applyCommand(PassRefPtr<EditCommand>); 88 }; 89 90 class SimpleEditCommand : public EditCommand { 91 protected: 92 SimpleEditCommand(Document* document) : EditCommand(document) { } 93 }; 94 95 void applyCommand(PassRefPtr<EditCommand>); 96 97 } // namespace WebCore 98 99 #endif // EditCommand_h 100
