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| 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 #include "config.h" | |
| 30 #include "core/accessibility/AXSlider.h" | |
| 31 | |
| 32 #include "core/accessibility/AXObjectCacheImpl.h" | |
| 33 #include "core/dom/shadow/ShadowRoot.h" | |
| 34 #include "core/html/HTMLInputElement.h" | |
| 35 #include "core/html/shadow/ShadowElementNames.h" | |
| 36 #include "core/rendering/RenderObject.h" | |
| 37 | |
| 38 namespace blink { | |
| 39 | |
| 40 using namespace HTMLNames; | |
| 41 | |
| 42 AXSlider::AXSlider(RenderObject* renderer) | |
| 43 : AXRenderObject(renderer) | |
| 44 { | |
| 45 } | |
| 46 | |
| 47 PassRefPtr<AXSlider> AXSlider::create(RenderObject* renderer) | |
| 48 { | |
| 49 return adoptRef(new AXSlider(renderer)); | |
| 50 } | |
| 51 | |
| 52 AccessibilityOrientation AXSlider::orientation() const | |
| 53 { | |
| 54 // Default to horizontal in the unknown case. | |
| 55 if (!m_renderer) | |
| 56 return AccessibilityOrientationHorizontal; | |
| 57 | |
| 58 RenderStyle* style = m_renderer->style(); | |
| 59 if (!style) | |
| 60 return AccessibilityOrientationHorizontal; | |
| 61 | |
| 62 ControlPart styleAppearance = style->appearance(); | |
| 63 switch (styleAppearance) { | |
| 64 case SliderThumbHorizontalPart: | |
| 65 case SliderHorizontalPart: | |
| 66 case MediaSliderPart: | |
| 67 case MediaFullScreenVolumeSliderPart: | |
| 68 return AccessibilityOrientationHorizontal; | |
| 69 | |
| 70 case SliderThumbVerticalPart: | |
| 71 case SliderVerticalPart: | |
| 72 case MediaVolumeSliderPart: | |
| 73 return AccessibilityOrientationVertical; | |
| 74 | |
| 75 default: | |
| 76 return AccessibilityOrientationHorizontal; | |
| 77 } | |
| 78 } | |
| 79 | |
| 80 void AXSlider::addChildren() | |
| 81 { | |
| 82 ASSERT(!m_haveChildren); | |
| 83 | |
| 84 m_haveChildren = true; | |
| 85 | |
| 86 AXObjectCacheImpl* cache = toAXObjectCacheImpl(m_renderer->document().axObje
ctCache()); | |
| 87 | |
| 88 AXSliderThumb* thumb = static_cast<AXSliderThumb*>(cache->getOrCreate(Slider
ThumbRole)); | |
| 89 thumb->setParent(this); | |
| 90 | |
| 91 // Before actually adding the value indicator to the hierarchy, | |
| 92 // allow the platform to make a final decision about it. | |
| 93 if (thumb->accessibilityIsIgnored()) | |
| 94 cache->remove(thumb->axObjectID()); | |
| 95 else | |
| 96 m_children.append(thumb); | |
| 97 } | |
| 98 | |
| 99 const AtomicString& AXSlider::getAttribute(const QualifiedName& attribute) const | |
| 100 { | |
| 101 return element()->getAttribute(attribute); | |
| 102 } | |
| 103 | |
| 104 AXObject* AXSlider::elementAccessibilityHitTest(const IntPoint& point) const | |
| 105 { | |
| 106 if (m_children.size()) { | |
| 107 ASSERT(m_children.size() == 1); | |
| 108 if (m_children[0]->elementRect().contains(point)) | |
| 109 return m_children[0].get(); | |
| 110 } | |
| 111 | |
| 112 return axObjectCache()->getOrCreate(m_renderer); | |
| 113 } | |
| 114 | |
| 115 void AXSlider::setValue(const String& value) | |
| 116 { | |
| 117 HTMLInputElement* input = element(); | |
| 118 | |
| 119 if (input->value() == value) | |
| 120 return; | |
| 121 | |
| 122 input->setValue(value); | |
| 123 | |
| 124 // Fire change event manually, as RenderSlider::setValueForPosition does. | |
| 125 input->dispatchFormControlChangeEvent(); | |
| 126 } | |
| 127 | |
| 128 HTMLInputElement* AXSlider::element() const | |
| 129 { | |
| 130 return toHTMLInputElement(m_renderer->node()); | |
| 131 } | |
| 132 | |
| 133 | |
| 134 AXSliderThumb::AXSliderThumb() | |
| 135 { | |
| 136 } | |
| 137 | |
| 138 PassRefPtr<AXSliderThumb> AXSliderThumb::create() | |
| 139 { | |
| 140 return adoptRef(new AXSliderThumb()); | |
| 141 } | |
| 142 | |
| 143 LayoutRect AXSliderThumb::elementRect() const | |
| 144 { | |
| 145 if (!m_parent) | |
| 146 return LayoutRect(); | |
| 147 | |
| 148 RenderObject* sliderRenderer = m_parent->renderer(); | |
| 149 if (!sliderRenderer || !sliderRenderer->isSlider()) | |
| 150 return LayoutRect(); | |
| 151 return toElement(sliderRenderer->node())->userAgentShadowRoot()->getElementB
yId(ShadowElementNames::sliderThumb())->boundingBox(); | |
| 152 } | |
| 153 | |
| 154 bool AXSliderThumb::computeAccessibilityIsIgnored() const | |
| 155 { | |
| 156 return accessibilityIsIgnoredByDefault(); | |
| 157 } | |
| 158 | |
| 159 } // namespace blink | |
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Chromium Code Reviews
Issue 713933002:
Create Source/modules/accessibility/ and move most of core/accessibility/* into it (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master