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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 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 "AccessibilitySlider.h"
#include "AXObjectCache.h"
#include "HTMLInputElement.h"
#include "HTMLNames.h"
#include "RenderSlider.h"
#include "RenderStyleInlines.h"
#include "SliderThumbElement.h"
#include "StyleAppearance.h"
#include <wtf/Scope.h>
namespace WebCore {
using namespace HTMLNames;
AccessibilitySlider::AccessibilitySlider(RenderObject* renderer)
: AccessibilityRenderObject(renderer)
{
}
Ref<AccessibilitySlider> AccessibilitySlider::create(RenderObject* renderer)
{
return adoptRef(*new AccessibilitySlider(renderer));
}
AccessibilityOrientation AccessibilitySlider::orientation() const
{
auto ariaOrientation = getAttribute(aria_orientationAttr);
if (equalLettersIgnoringASCIICase(ariaOrientation, "horizontal"_s))
return AccessibilityOrientation::Horizontal;
if (equalLettersIgnoringASCIICase(ariaOrientation, "vertical"_s))
return AccessibilityOrientation::Vertical;
if (equalLettersIgnoringASCIICase(ariaOrientation, "undefined"_s))
return AccessibilityOrientation::Undefined;
const auto* style = this->style();
// Default to horizontal in the unknown case.
if (!style)
return AccessibilityOrientation::Horizontal;
auto styleAppearance = style->effectiveAppearance();
switch (styleAppearance) {
case StyleAppearance::SliderThumbHorizontal:
case StyleAppearance::SliderHorizontal:
return AccessibilityOrientation::Horizontal;
case StyleAppearance::SliderThumbVertical:
case StyleAppearance::SliderVertical:
return AccessibilityOrientation::Vertical;
default:
return AccessibilityOrientation::Horizontal;
}
}
void AccessibilitySlider::addChildren()
{
ASSERT(!m_childrenInitialized);
m_childrenInitialized = true;
auto clearDirtySubtree = makeScopeExit([&] {
m_subtreeDirty = false;
});
auto* cache = axObjectCache();
if (!cache)
return;
auto& thumb = downcast<AccessibilitySliderThumb>(*cache->create(AccessibilityRole::SliderThumb));
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.objectID());
else
addChild(&thumb);
}
const AtomString& AccessibilitySlider::getAttribute(const QualifiedName& attribute) const
{
if (auto* input = inputElement())
return input->getAttribute(attribute);
return nullAtom();
}
AXCoreObject* AccessibilitySlider::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(renderer());
}
float AccessibilitySlider::valueForRange() const
{
if (auto* input = inputElement())
return input->value().toFloat();
return 0;
}
float AccessibilitySlider::maxValueForRange() const
{
if (auto* input = inputElement())
return static_cast<float>(input->maximum());
return 0;
}
float AccessibilitySlider::minValueForRange() const
{
if (auto* input = inputElement())
return static_cast<float>(input->minimum());
return 0;
}
bool AccessibilitySlider::setValue(const String& value)
{
HTMLInputElement* input = inputElement();
if (input->value() == value)
return true;
input->setValue(value, DispatchChangeEvent);
return true;
}
HTMLInputElement* AccessibilitySlider::inputElement() const
{
return dynamicDowncast<HTMLInputElement>(node());
}
AccessibilitySliderThumb::AccessibilitySliderThumb()
{
}
Ref<AccessibilitySliderThumb> AccessibilitySliderThumb::create()
{
return adoptRef(*new AccessibilitySliderThumb());
}
LayoutRect AccessibilitySliderThumb::elementRect() const
{
if (!m_parent)
return LayoutRect();
RenderObject* sliderRenderer = m_parent->renderer();
if (!sliderRenderer || !sliderRenderer->isSlider())
return LayoutRect();
if (auto* thumbRenderer = downcast<RenderSlider>(*sliderRenderer).element().sliderThumbElement()->renderer())
return thumbRenderer->absoluteBoundingBoxRect();
return LayoutRect();
}
bool AccessibilitySliderThumb::computeAccessibilityIsIgnored() const
{
return accessibilityIsIgnoredByDefault();
}
} // namespace WebCore
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