Source/WebCore/accessibility/AccessibilityScrollbar.h

/*
 * Copyright (C) 2010 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 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
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#pragma once

#include "AccessibilityMockObject.h"

namespace WebCore {

class Scrollbar;

class AccessibilityScrollbar final : public AccessibilityMockObject {
public:
    static Ref<AccessibilityScrollbar> create(Scrollbar*);

    Scrollbar* scrollbar() const { return m_scrollbar.get(); }
    
private:
    explicit AccessibilityScrollbar(Scrollbar*);

    bool canSetValueAttribute() const override { return true; }
    bool canSetNumericValue() const override { return true; }

    bool isAccessibilityScrollbar() const override { return true; }
    LayoutRect elementRect() const override;
    
    AccessibilityRole roleValue() const override { return AccessibilityRole::ScrollBar; }
    AccessibilityOrientation orientation() const override;
    Document* document() const override;
    bool isEnabled() const override;
    
    // Assumes float [0..1]
    void setValue(float) override;
    float valueForRange() const override;

    RefPtr<Scrollbar> m_scrollbar;
};

} // namespace WebCore

SPECIALIZE_TYPE_TRAITS_ACCESSIBILITY(AccessibilityScrollbar, isAccessibilityScrollbar())