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
30#ifndef AXMediaControls_h
31#define AXMediaControls_h
32
33#include "core/accessibility/AXSlider.h"
34#include "core/html/shadow/MediaControlElements.h"
35
36namespace blink {
37
38class AccessibilityMediaControl : public AXRenderObject {
39
40public:
41    static PassRefPtr<AXObject> create(RenderObject*);
42    virtual ~AccessibilityMediaControl() { }
43
44    virtual AccessibilityRole roleValue() const OVERRIDE;
45
46    virtual String title() const OVERRIDE FINAL;
47    virtual String accessibilityDescription() const OVERRIDE;
48    virtual String helpText() const OVERRIDE;
49
50protected:
51    explicit AccessibilityMediaControl(RenderObject*);
52    MediaControlElementType controlType() const;
53    virtual bool computeAccessibilityIsIgnored() const OVERRIDE;
54};
55
56
57class AccessibilityMediaTimeline FINAL : public AXSlider {
58
59public:
60    static PassRefPtr<AXObject> create(RenderObject*);
61    virtual ~AccessibilityMediaTimeline() { }
62
63    virtual String helpText() const OVERRIDE;
64    virtual String valueDescription() const OVERRIDE;
65    const AtomicString& getAttribute(const QualifiedName& attribute) const;
66
67private:
68    explicit AccessibilityMediaTimeline(RenderObject*);
69};
70
71
72class AXMediaControlsContainer FINAL : public AccessibilityMediaControl {
73
74public:
75    static PassRefPtr<AXObject> create(RenderObject*);
76    virtual ~AXMediaControlsContainer() { }
77
78    virtual AccessibilityRole roleValue() const OVERRIDE { return ToolbarRole; }
79
80    virtual String helpText() const OVERRIDE;
81    virtual String accessibilityDescription() const OVERRIDE;
82
83private:
84    explicit AXMediaControlsContainer(RenderObject*);
85    bool controllingVideoElement() const;
86    virtual bool computeAccessibilityIsIgnored() const OVERRIDE;
87};
88
89
90class AccessibilityMediaTimeDisplay FINAL : public AccessibilityMediaControl {
91
92public:
93    static PassRefPtr<AXObject> create(RenderObject*);
94    virtual ~AccessibilityMediaTimeDisplay() { }
95
96    virtual AccessibilityRole roleValue() const OVERRIDE { return StaticTextRole; }
97
98    virtual String stringValue() const OVERRIDE;
99    virtual String accessibilityDescription() const OVERRIDE;
100
101private:
102    explicit AccessibilityMediaTimeDisplay(RenderObject*);
103    virtual bool computeAccessibilityIsIgnored() const OVERRIDE;
104};
105
106
107} // namespace blink
108
109#endif // AXMediaControls_h
110