1/*
2 * Copyright (C) 2009 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1.  Redistributions of source code must retain the above copyright
9 *     notice, this list of conditions and the following disclaimer.
10 * 2.  Redistributions in binary form must reproduce the above copyright
11 *     notice, this list of conditions and the following disclaimer in the
12 *     documentation and/or other materials provided with the distribution.
13 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 *     its contributors may be used to endorse or promote products derived
15 *     from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef AccessibilitySlider_h
30#define AccessibilitySlider_h
31
32#include "AccessibilityRenderObject.h"
33
34namespace WebCore {
35
36class HTMLInputElement;
37
38class AccessibilitySlider : public AccessibilityRenderObject {
39
40public:
41    static PassRefPtr<AccessibilitySlider> create(RenderObject*);
42    virtual ~AccessibilitySlider() { }
43
44    virtual AccessibilityRole roleValue() const { return SliderRole; }
45    virtual bool accessibilityIsIgnored() const { return false; }
46
47    virtual bool isSlider() const { return true; }
48
49    virtual const AccessibilityChildrenVector& children();
50    virtual void addChildren();
51
52    virtual bool canSetValueAttribute() const { return true; }
53    const AtomicString& getAttribute(const QualifiedName& attribute) const;
54
55    virtual void setValue(const String&);
56    virtual float valueForRange() const;
57    virtual float maxValueForRange() const;
58    virtual float minValueForRange() const;
59    virtual AccessibilityOrientation orientation() const;
60
61protected:
62    AccessibilitySlider(RenderObject*);
63
64private:
65    HTMLInputElement* element() const;
66};
67
68class AccessibilitySliderThumb : public AccessibilityObject {
69
70public:
71    static PassRefPtr<AccessibilitySliderThumb> create();
72    virtual ~AccessibilitySliderThumb() { }
73
74    virtual AccessibilityRole roleValue() const { return SliderThumbRole; }
75    virtual bool accessibilityIsIgnored() const { return false; }
76
77    void setParentObject(AccessibilitySlider* slider) { m_parentSlider = slider; }
78    virtual AccessibilityObject* parentObject() const { return m_parentSlider; }
79
80    virtual IntSize size() const;
81    virtual IntRect elementRect() const;
82
83private:
84    AccessibilitySliderThumb();
85
86    AccessibilitySlider* m_parentSlider;
87};
88
89
90} // namespace WebCore
91
92#endif // AccessibilitySlider_h
93