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 AccessibilityMediaControls_h 31 #define AccessibilityMediaControls_h 32 33 #include "core/accessibility/AccessibilitySlider.h" 34 #include "core/html/shadow/MediaControlElements.h" 35 36 namespace WebCore { 37 38 class AccessibilityMediaControl : public AccessibilityRenderObject { 39 40 public: 41 static PassRefPtr<AccessibilityObject> create(RenderObject*); 42 virtual ~AccessibilityMediaControl() { } 43 44 virtual AccessibilityRole roleValue() const OVERRIDE; 45 46 virtual String title() const OVERRIDE; 47 virtual String accessibilityDescription() const OVERRIDE; 48 virtual String helpText() const OVERRIDE; 49 50 protected: 51 explicit AccessibilityMediaControl(RenderObject*); 52 MediaControlElementType controlType() const; 53 String controlTypeName() const; 54 virtual void accessibilityText(Vector<AccessibilityText>&) OVERRIDE; 55 virtual bool computeAccessibilityIsIgnored() const OVERRIDE; 56 }; 57 58 59 class AccessibilityMediaTimeline : public AccessibilitySlider { 60 61 public: 62 static PassRefPtr<AccessibilityObject> create(RenderObject*); 63 virtual ~AccessibilityMediaTimeline() { } 64 65 virtual String helpText() const OVERRIDE; 66 virtual String valueDescription() const OVERRIDE; 67 const AtomicString& getAttribute(const QualifiedName& attribute) const; 68 69 private: 70 explicit AccessibilityMediaTimeline(RenderObject*); 71 }; 72 73 74 class AccessibilityMediaControlsContainer : public AccessibilityMediaControl { 75 76 public: 77 static PassRefPtr<AccessibilityObject> create(RenderObject*); 78 virtual ~AccessibilityMediaControlsContainer() { } 79 80 virtual AccessibilityRole roleValue() const OVERRIDE { return ToolbarRole; } 81 82 virtual String helpText() const OVERRIDE; 83 virtual String accessibilityDescription() const OVERRIDE; 84 85 private: 86 explicit AccessibilityMediaControlsContainer(RenderObject*); 87 bool controllingVideoElement() const; 88 const String elementTypeName() const; 89 virtual bool computeAccessibilityIsIgnored() const OVERRIDE; 90 }; 91 92 93 class AccessibilityMediaTimeDisplay : public AccessibilityMediaControl { 94 95 public: 96 static PassRefPtr<AccessibilityObject> create(RenderObject*); 97 virtual ~AccessibilityMediaTimeDisplay() { } 98 99 virtual AccessibilityRole roleValue() const OVERRIDE { return StaticTextRole; } 100 101 virtual String stringValue() const OVERRIDE; 102 virtual String accessibilityDescription() const OVERRIDE; 103 104 private: 105 explicit AccessibilityMediaTimeDisplay(RenderObject*); 106 virtual bool computeAccessibilityIsIgnored() const OVERRIDE; 107 }; 108 109 110 } // namespace WebCore 111 112 #endif // AccessibilityMediaControls_h 113