diff -r 000000000000 -r 4f2f89ce4247 WebCore/editing/EditCommand.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/editing/EditCommand.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2005, 2006, 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#ifndef EditCommand_h
+#define EditCommand_h
+
+#include "EditAction.h"
+#include "Element.h"
+#include "VisibleSelection.h"
+
+namespace WebCore {
+
+class CompositeEditCommand;
+class CSSMutableStyleDeclaration;
+
+class EditCommand : public RefCounted<EditCommand> {
+public:
+    virtual ~EditCommand();
+
+    void setParent(CompositeEditCommand*);
+
+    void apply();
+    void unapply();
+    void reapply();
+
+    virtual EditAction editingAction() const;
+
+    const VisibleSelection& startingSelection() const { return m_startingSelection; }
+    const VisibleSelection& endingSelection() const { return m_endingSelection; }
+
+    Element* startingRootEditableElement() const { return m_startingRootEditableElement.get(); }
+    Element* endingRootEditableElement() const { return m_endingRootEditableElement.get(); }
+    
+    virtual bool isInsertTextCommand() const;
+    virtual bool isTypingCommand() const;
+    
+    virtual bool preservesTypingStyle() const;
+    
+    bool isTopLevelCommand() const { return !m_parent; }
+
+protected:
+    EditCommand(Document*);
+
+    Document* document() const { return m_document.get(); }
+
+    void setStartingSelection(const VisibleSelection&);
+    void setEndingSelection(const VisibleSelection&);
+
+    void updateLayout() const;
+
+private:
+    virtual void doApply() = 0;
+    virtual void doUnapply() = 0;
+    virtual void doReapply(); // calls doApply()
+
+    RefPtr<Document> m_document;
+    VisibleSelection m_startingSelection;
+    VisibleSelection m_endingSelection;
+    RefPtr<Element> m_startingRootEditableElement;
+    RefPtr<Element> m_endingRootEditableElement;
+    CompositeEditCommand* m_parent;
+
+    friend void applyCommand(PassRefPtr<EditCommand>);
+};
+
+class SimpleEditCommand : public EditCommand {
+protected:
+    SimpleEditCommand(Document* document) : EditCommand(document) { }
+};
+
+void applyCommand(PassRefPtr<EditCommand>);
+
+} // namespace WebCore
+
+#endif // EditCommand_h