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/*
* Copyright (C) 2009 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 Computer, 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
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "modules/accessibility/AXSlider.h"
#include "core/dom/shadow/ShadowRoot.h"
#include "core/html/HTMLInputElement.h"
#include "core/html/shadow/ShadowElementNames.h"
#include "core/rendering/RenderObject.h"
#include "modules/accessibility/AXObjectCacheImpl.h"
namespace blink {
using namespace HTMLNames;
AXSlider::AXSlider(RenderObject* renderer, AXObjectCacheImpl* axObjectCache)
: AXRenderObject(renderer, axObjectCache)
{
}
PassRefPtr<AXSlider> AXSlider::create(RenderObject* renderer, AXObjectCacheImpl* axObjectCache)
{
return adoptRef(new AXSlider(renderer, axObjectCache));
}
AccessibilityOrientation AXSlider::orientation() const
{
// Default to horizontal in the unknown case.
if (!m_renderer)
return AccessibilityOrientationHorizontal;
RenderStyle* style = m_renderer->style();
if (!style)
return AccessibilityOrientationHorizontal;
ControlPart styleAppearance = style->appearance();
switch (styleAppearance) {
case SliderThumbHorizontalPart:
case SliderHorizontalPart:
case MediaSliderPart:
case MediaFullScreenVolumeSliderPart:
return AccessibilityOrientationHorizontal;
case SliderThumbVerticalPart:
case SliderVerticalPart:
case MediaVolumeSliderPart:
return AccessibilityOrientationVertical;
default:
return AccessibilityOrientationHorizontal;
}
}
void AXSlider::addChildren()
{
ASSERT(!m_haveChildren);
m_haveChildren = true;
AXObjectCacheImpl* cache = axObjectCache();
AXSliderThumb* thumb = static_cast<AXSliderThumb*>(cache->getOrCreate(SliderThumbRole));
thumb->setParent(this);
// Before actually adding the value indicator to the hierarchy,
// allow the platform to make a final decision about it.
if (thumb->accessibilityIsIgnored())
cache->remove(thumb->axObjectID());
else
m_children.append(thumb);
}
const AtomicString& AXSlider::getAttribute(const QualifiedName& attribute) const
{
return element()->getAttribute(attribute);
}
AXObject* AXSlider::elementAccessibilityHitTest(const IntPoint& point) const
{
if (m_children.size()) {
ASSERT(m_children.size() == 1);
if (m_children[0]->elementRect().contains(point))
return m_children[0].get();
}
return axObjectCache()->getOrCreate(m_renderer);
}
void AXSlider::setValue(const String& value)
{
HTMLInputElement* input = element();
if (input->value() == value)
return;
input->setValue(value);
// Fire change event manually, as RenderSlider::setValueForPosition does.
input->dispatchFormControlChangeEvent();
}
HTMLInputElement* AXSlider::element() const
{
return toHTMLInputElement(m_renderer->node());
}
AXSliderThumb::AXSliderThumb(AXObjectCacheImpl* axObjectCache)
: AXMockObject(axObjectCache)
{
}
PassRefPtr<AXSliderThumb> AXSliderThumb::create(AXObjectCacheImpl* axObjectCache)
{
return adoptRef(new AXSliderThumb(axObjectCache));
}
LayoutRect AXSliderThumb::elementRect() const
{
if (!m_parent)
return LayoutRect();
RenderObject* sliderRenderer = m_parent->renderer();
if (!sliderRenderer || !sliderRenderer->isSlider())
return LayoutRect();
return toElement(sliderRenderer->node())->userAgentShadowRoot()->getElementById(ShadowElementNames::sliderThumb())->boundingBox();
}
bool AXSliderThumb::computeAccessibilityIsIgnored() const
{
return accessibilityIsIgnoredByDefault();
}
} // namespace blink
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