/*

 * Copyright (C) 2006, 2007 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 DeleteButtonController_h

#define DeleteButtonController_h

#include "DeleteButton.h"

namespace WebCore {

class DeleteButton;

class Frame;

class HTMLElement;

class RenderObject;

class VisibleSelection;

class DeleteButtonController : public Noncopyable {

public:

    DeleteButtonController(Frame*);

    static const char* const containerElementIdentifier;

    HTMLElement* target() const { return m_target.get(); }

    HTMLElement* containerElement() const { return m_containerElement.get(); }

    void respondToChangedSelection(const VisibleSelection& oldSelection);

    void show(HTMLElement*);

    void hide();

    bool enabled() const { return (m_disableStack == 0); }

    void enable();

    void disable();

    void deleteTarget();

private:

    static const char* const buttonElementIdentifier;

    static const char* const outlineElementIdentifier;

    void createDeletionUI();

    Frame* m_frame;

    RefPtr<HTMLElement> m_target;

    RefPtr<HTMLElement> m_containerElement;

    RefPtr<HTMLElement> m_outlineElement;

    RefPtr<DeleteButton> m_buttonElement;

    bool m_wasStaticPositioned;

    bool m_wasAutoZIndex;

    unsigned m_disableStack;

};

} // namespace WebCore

#endif