/*

 * Copyright (C) 2009 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.

 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

 *     its contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 AccessibilitySlider_h

#define AccessibilitySlider_h

#include "AccessibilityRenderObject.h"

namespace WebCore {

class HTMLInputElement;

class AccessibilitySlider : public AccessibilityRenderObject {

public:

    static PassRefPtr<AccessibilitySlider> create(RenderObject*);

    virtual ~AccessibilitySlider() { }

    virtual AccessibilityRole roleValue() const { return SliderRole; }

    virtual bool isSlider() const { return true; }

    virtual const AccessibilityChildrenVector& children();

    virtual void addChildren();

    virtual bool canSetValueAttribute() const { return true; }

    const AtomicString& getAttribute(const QualifiedName& attribute) const;

    virtual void setValue(const String&);

    virtual float valueForRange() const;

    virtual float maxValueForRange() const;

    virtual float minValueForRange() const;

    virtual AccessibilityOrientation orientation() const;

protected:

    AccessibilitySlider(RenderObject*);

private:

    HTMLInputElement* element() const;

    virtual bool accessibilityIsIgnored() const;

};

class AccessibilitySliderThumb : public AccessibilityObject {

public:

    static PassRefPtr<AccessibilitySliderThumb> create();

    virtual ~AccessibilitySliderThumb() { }

    virtual AccessibilityRole roleValue() const { return SliderThumbRole; }

    void setParentObject(AccessibilitySlider* slider) { m_parentSlider = slider; }

    virtual AccessibilityObject* parentObject() const { return m_parentSlider; }

    virtual IntSize size() const;

    virtual IntRect elementRect() const;

private:

    AccessibilitySliderThumb();

    virtual bool accessibilityIsIgnored() const { return false; }

    AccessibilitySlider* m_parentSlider;

};

} // namespace WebCore

#endif // AccessibilitySlider_h