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