AccessibilitySlider.cpp [plain text]
#include "config.h"
#include "AccessibilitySlider.h"
#include "AXObjectCache.h"
#include "HTMLInputElement.h"
#include "HTMLNames.h"
#include "RenderObject.h"
#include "RenderSlider.h"
#include "SliderThumbElement.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
{
if (!m_renderer)
return AccessibilityOrientationHorizontal;
const RenderStyle& style = m_renderer->style();
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 AccessibilitySlider::addChildren()
{
ASSERT(!m_haveChildren);
m_haveChildren = true;
AXObjectCache* cache = m_renderer->document().axObjectCache();
auto& thumb = downcast<AccessibilitySliderThumb>(*cache->getOrCreate(SliderThumbRole));
thumb.setParent(this);
if (thumb.accessibilityIsIgnored())
cache->remove(thumb.axObjectID());
else
m_children.append(&thumb);
}
const AtomicString& AccessibilitySlider::getAttribute(const QualifiedName& attribute) const
{
return inputElement()->getAttribute(attribute);
}
AccessibilityObject* 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(m_renderer);
}
float AccessibilitySlider::valueForRange() const
{
return inputElement()->value().toFloat();
}
float AccessibilitySlider::maxValueForRange() const
{
return static_cast<float>(inputElement()->maximum());
}
float AccessibilitySlider::minValueForRange() const
{
return static_cast<float>(inputElement()->minimum());
}
void AccessibilitySlider::setValue(const String& value)
{
HTMLInputElement* input = inputElement();
if (input->value() == value)
return;
input->setValue(value, DispatchChangeEvent);
}
HTMLInputElement* AccessibilitySlider::inputElement() const
{
return downcast<HTMLInputElement>(m_renderer->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();
}
}