/*

 * 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 ReplaceSelectionCommand_h

#define ReplaceSelectionCommand_h

#include "CompositeEditCommand.h"

namespace WebCore {

class DocumentFragment;

class ReplacementFragment;

class ReplaceSelectionCommand : public CompositeEditCommand {

public:

    static PassRefPtr<ReplaceSelectionCommand> create(Document* document, PassRefPtr<DocumentFragment> fragment,

        bool selectReplacement = true, bool smartReplace = false, bool matchStyle = false, bool preventNesting = true, bool movingParagraph = false,

        EditAction action = EditActionPaste)

    {

        return adoptRef(new ReplaceSelectionCommand(document, fragment, selectReplacement, smartReplace, matchStyle, preventNesting, movingParagraph, action));

    }

private:

    ReplaceSelectionCommand(Document*, PassRefPtr<DocumentFragment>,

        bool selectReplacement, bool smartReplace, bool matchStyle, bool preventNesting, bool movingParagraph, EditAction);

    virtual void doApply();

    virtual EditAction editingAction() const;

    void completeHTMLReplacement(const Position& lastPositionToSelect);

    void insertNodeAfterAndUpdateNodesInserted(PassRefPtr<Node> insertChild, Node* refChild);

    void insertNodeAtAndUpdateNodesInserted(PassRefPtr<Node>, const Position&);

    void insertNodeBeforeAndUpdateNodesInserted(PassRefPtr<Node> insertChild, Node* refChild);

    Node* insertAsListItems(PassRefPtr<Node>, Node* insertionNode, const Position&);

    void updateNodesInserted(Node*);

    bool shouldRemoveEndBR(Node*, const VisiblePosition&);

    bool shouldMergeStart(bool, bool, bool);

    bool shouldMergeEnd(bool selectEndWasEndOfParagraph);

    bool shouldMerge(const VisiblePosition&, const VisiblePosition&);

    void mergeEndIfNeeded();

    void removeUnrenderedTextNodesAtEnds();

    void negateStyleRulesThatAffectAppearance();

    void handleStyleSpans();

    void copyStyleToChildren(Node* parentNode, const CSSMutableStyleDeclaration* parentStyle);

    void handlePasteAsQuotationNode();

    virtual void removeNodePreservingChildren(Node*);

    virtual void removeNodeAndPruneAncestors(Node*);

    VisiblePosition positionAtStartOfInsertedContent();

    VisiblePosition positionAtEndOfInsertedContent();

    bool performTrivialReplace(const ReplacementFragment&);

    RefPtr<Node> m_firstNodeInserted;

    RefPtr<Node> m_lastLeafInserted;

    RefPtr<CSSMutableStyleDeclaration> m_insertionStyle;

    bool m_selectReplacement;

    bool m_smartReplace;

    bool m_matchStyle;

    RefPtr<DocumentFragment> m_documentFragment;

    bool m_preventNesting;

    bool m_movingParagraph;

    EditAction m_editAction;

    bool m_shouldMergeEnd;

};

} // namespace WebCore

#endif // ReplaceSelectionCommand_h