--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/editing/CompositeEditCommand.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,125 @@
+/*
+ * 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 CompositeEditCommand_h
+#define CompositeEditCommand_h
+
+#include "EditCommand.h"
+#include "CSSPropertyNames.h"
+#include <wtf/Vector.h>
+
+namespace WebCore {
+
+class CSSStyleDeclaration;
+class HTMLElement;
+class Text;
+
+class CompositeEditCommand : public EditCommand {
+public:
+    bool isFirstCommand(EditCommand* command) { return !m_commands.isEmpty() && m_commands.first() == command; }
+
+protected:
+    CompositeEditCommand(Document*);
+
+    //
+    // sugary-sweet convenience functions to help create and apply edit commands in composite commands
+    //
+    void appendNode(PassRefPtr<Node>, PassRefPtr<Element> parent);
+    void applyCommandToComposite(PassRefPtr<EditCommand>);
+    void applyStyle(CSSStyleDeclaration*, EditAction = EditActionChangeAttributes);
+    void applyStyle(CSSStyleDeclaration*, const Position& start, const Position& end, EditAction = EditActionChangeAttributes);
+    void applyStyledElement(PassRefPtr<Element>);
+    void removeStyledElement(PassRefPtr<Element>);
+    void deleteSelection(bool smartDelete = false, bool mergeBlocksAfterDelete = true, bool replace = false, bool expandForSpecialElements = true);
+    void deleteSelection(const VisibleSelection&, bool smartDelete = false, bool mergeBlocksAfterDelete = true, bool replace = false, bool expandForSpecialElements = true);
+    virtual void deleteTextFromNode(PassRefPtr<Text>, unsigned offset, unsigned count);
+    void inputText(const String&, bool selectInsertedText = false);
+    void insertNodeAfter(PassRefPtr<Node>, PassRefPtr<Node> refChild);
+    void insertNodeAt(PassRefPtr<Node>, const Position&);
+    void insertNodeAtTabSpanPosition(PassRefPtr<Node>, const Position&);
+    void insertNodeBefore(PassRefPtr<Node>, PassRefPtr<Node> refChild);
+    void insertParagraphSeparator(bool useDefaultParagraphElement = false);
+    void insertLineBreak();
+    void insertTextIntoNode(PassRefPtr<Text>, unsigned offset, const String& text);
+    void joinTextNodes(PassRefPtr<Text>, PassRefPtr<Text>);
+    void mergeIdenticalElements(PassRefPtr<Element>, PassRefPtr<Element>);
+    void rebalanceWhitespace();
+    void rebalanceWhitespaceAt(const Position&);
+    void prepareWhitespaceAtPositionForSplit(Position&);
+    void removeCSSProperty(PassRefPtr<CSSMutableStyleDeclaration>, CSSPropertyID);
+    void removeNodeAttribute(PassRefPtr<Element>, const QualifiedName& attribute);
+    void removeChildrenInRange(PassRefPtr<Node>, unsigned from, unsigned to);
+    virtual void removeNode(PassRefPtr<Node>);
+    HTMLElement* replaceNodeWithSpanPreservingChildrenAndAttributes(PassRefPtr<Node>);
+    void removeNodePreservingChildren(PassRefPtr<Node>);
+    void removeNodeAndPruneAncestors(PassRefPtr<Node>);
+    void prune(PassRefPtr<Node>);
+    void replaceTextInNode(PassRefPtr<Text>, unsigned offset, unsigned count, const String& replacementText);
+    Position positionOutsideTabSpan(const Position&);
+    void setNodeAttribute(PassRefPtr<Element>, const QualifiedName& attribute, const AtomicString& value);
+    void splitElement(PassRefPtr<Element>, PassRefPtr<Node> atChild);
+    void splitTextNode(PassRefPtr<Text>, unsigned offset);
+    void splitTextNodeContainingElement(PassRefPtr<Text>, unsigned offset);
+    void wrapContentsInDummySpan(PassRefPtr<Element>);
+
+    void deleteInsignificantText(PassRefPtr<Text>, unsigned start, unsigned end);
+    void deleteInsignificantText(const Position& start, const Position& end);
+    void deleteInsignificantTextDownstream(const Position&);
+
+    PassRefPtr<Node> appendBlockPlaceholder(PassRefPtr<Element>);
+    PassRefPtr<Node> insertBlockPlaceholder(const Position&);
+    PassRefPtr<Node> addBlockPlaceholderIfNeeded(Element*);
+    void removePlaceholderAt(const Position&);
+
+    PassRefPtr<Node> insertNewDefaultParagraphElementAt(const Position&);
+
+    PassRefPtr<Node> moveParagraphContentsToNewBlockIfNecessary(const Position&);
+    
+    void pushAnchorElementDown(Node*);
+    void pushPartiallySelectedAnchorElementsDown();
+    
+    void moveParagraph(const VisiblePosition&, const VisiblePosition&, const VisiblePosition&, bool preserveSelection = false, bool preserveStyle = true);
+    void moveParagraphs(const VisiblePosition&, const VisiblePosition&, const VisiblePosition&, bool preserveSelection = false, bool preserveStyle = true);
+    void moveParagraphWithClones(const VisiblePosition& startOfParagraphToMove, const VisiblePosition& endOfParagraphToMove, Element* blockElement, Node* outerNode);
+    void cloneParagraphUnderNewElement(Position& start, Position& end, Node* outerNode, Element* blockElement);
+    void cleanupAfterDeletion();
+    
+    bool breakOutOfEmptyListItem();
+    bool breakOutOfEmptyMailBlockquotedParagraph();
+    
+    Position positionAvoidingSpecialElementBoundary(const Position&);
+    
+    PassRefPtr<Node> splitTreeToNode(Node*, Node*, bool splitAncestor = false);
+
+    Vector<RefPtr<EditCommand> > m_commands;
+
+private:
+    virtual void doUnapply();
+    virtual void doReapply();
+};
+
+} // namespace WebCore
+
+#endif // CompositeEditCommand_h