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/*
* Copyright (C) 2008 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 "AccessibilityListBoxOption.h"
#include "AXObjectCache.h"
#include "AccessibilityListBox.h"
#include "Element.h"
#include "HTMLElement.h"
#include "HTMLNames.h"
#include "HTMLOptGroupElement.h"
#include "HTMLOptionElement.h"
#include "HTMLSelectElement.h"
#include "IntRect.h"
#include "RenderListBox.h"
#include "RenderObject.h"
namespace WebCore {
using namespace HTMLNames;
AccessibilityListBoxOption::AccessibilityListBoxOption()
: m_optionElement(nullptr)
{
}
AccessibilityListBoxOption::~AccessibilityListBoxOption() = default;
Ref<AccessibilityListBoxOption> AccessibilityListBoxOption::create()
{
return adoptRef(*new AccessibilityListBoxOption());
}
bool AccessibilityListBoxOption::isEnabled() const
{
if (is<HTMLOptGroupElement>(m_optionElement))
return false;
if (equalLettersIgnoringASCIICase(getAttribute(aria_disabledAttr), "true"))
return false;
if (m_optionElement->hasAttributeWithoutSynchronization(disabledAttr))
return false;
return true;
}
bool AccessibilityListBoxOption::isSelected() const
{
if (!is<HTMLOptionElement>(m_optionElement))
return false;
return downcast<HTMLOptionElement>(*m_optionElement).selected();
}
bool AccessibilityListBoxOption::isSelectedOptionActive() const
{
HTMLSelectElement* listBoxParentNode = listBoxOptionParentNode();
if (!listBoxParentNode)
return false;
return listBoxParentNode->activeSelectionEndListIndex() == listBoxOptionIndex();
}
LayoutRect AccessibilityListBoxOption::elementRect() const
{
LayoutRect rect;
if (!m_optionElement)
return rect;
HTMLSelectElement* listBoxParentNode = listBoxOptionParentNode();
if (!listBoxParentNode)
return rect;
RenderElement* listBoxRenderer = listBoxParentNode->renderer();
if (!listBoxRenderer)
return rect;
LayoutRect parentRect = listBoxRenderer->document().axObjectCache()->getOrCreate(listBoxRenderer)->boundingBoxRect();
int index = listBoxOptionIndex();
if (index != -1)
rect = downcast<RenderListBox>(*listBoxRenderer).itemBoundingBoxRect(parentRect.location(), index);
return rect;
}
bool AccessibilityListBoxOption::computeAccessibilityIsIgnored() const
{
if (!m_optionElement)
return true;
if (accessibilityIsIgnoredByDefault())
return true;
auto* parent = parentObject();
return parent ? parent->accessibilityIsIgnored() : true;
}
bool AccessibilityListBoxOption::canSetSelectedAttribute() const
{
if (!is<HTMLOptionElement>(m_optionElement))
return false;
if (m_optionElement->isDisabledFormControl())
return false;
HTMLSelectElement* selectElement = listBoxOptionParentNode();
if (selectElement && selectElement->isDisabledFormControl())
return false;
return true;
}
String AccessibilityListBoxOption::stringValue() const
{
if (!m_optionElement)
return String();
const AtomString& ariaLabel = getAttribute(aria_labelAttr);
if (!ariaLabel.isNull())
return ariaLabel;
if (is<HTMLOptionElement>(*m_optionElement))
return downcast<HTMLOptionElement>(*m_optionElement).label();
if (is<HTMLOptGroupElement>(*m_optionElement))
return downcast<HTMLOptGroupElement>(*m_optionElement).groupLabelText();
return String();
}
Element* AccessibilityListBoxOption::actionElement() const
{
return m_optionElement;
}
AccessibilityObject* AccessibilityListBoxOption::parentObject() const
{
HTMLSelectElement* parentNode = listBoxOptionParentNode();
if (!parentNode)
return nullptr;
return m_optionElement->document().axObjectCache()->getOrCreate(parentNode);
}
void AccessibilityListBoxOption::setSelected(bool selected)
{
HTMLSelectElement* selectElement = listBoxOptionParentNode();
if (!selectElement)
return;
if (!canSetSelectedAttribute())
return;
bool isOptionSelected = isSelected();
if ((isOptionSelected && selected) || (!isOptionSelected && !selected))
return;
// Convert from the entire list index to the option index.
int optionIndex = selectElement->listToOptionIndex(listBoxOptionIndex());
selectElement->accessKeySetSelectedIndex(optionIndex);
}
HTMLSelectElement* AccessibilityListBoxOption::listBoxOptionParentNode() const
{
if (!m_optionElement)
return nullptr;
if (is<HTMLOptionElement>(*m_optionElement))
return downcast<HTMLOptionElement>(*m_optionElement).ownerSelectElement();
if (is<HTMLOptGroupElement>(*m_optionElement))
return downcast<HTMLOptGroupElement>(*m_optionElement).ownerSelectElement();
return nullptr;
}
int AccessibilityListBoxOption::listBoxOptionIndex() const
{
if (!m_optionElement)
return -1;
HTMLSelectElement* selectElement = listBoxOptionParentNode();
if (!selectElement)
return -1;
const auto& listItems = selectElement->listItems();
unsigned length = listItems.size();
for (unsigned i = 0; i < length; i++)
if (listItems[i] == m_optionElement)
return i;
return -1;
}
} // namespace WebCore