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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 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 "core/accessibility/AXListBox.h"
#include "core/accessibility/AXListBoxOption.h"
#include "core/accessibility/AXObjectCache.h"
#include "core/html/HTMLSelectElement.h"
#include "core/rendering/RenderListBox.h"
namespace WebCore {
using namespace HTMLNames;
AXListBox::AXListBox(RenderObject* renderer)
: AXRenderObject(renderer)
{
}
AXListBox::~AXListBox()
{
}
PassRefPtr<AXListBox> AXListBox::create(RenderObject* renderer)
{
return adoptRef(new AXListBox(renderer));
}
void AXListBox::addChildren()
{
Node* selectNode = m_renderer->node();
if (!selectNode)
return;
m_haveChildren = true;
const WillBeHeapVector<RawPtrWillBeMember<HTMLElement> >& listItems = toHTMLSelectElement(selectNode)->listItems();
unsigned length = listItems.size();
for (unsigned i = 0; i < length; i++) {
// The cast to HTMLElement below is safe because the only other possible listItem type
// would be a WMLElement, but WML builds don't use accessibility features at all.
AXObject* listOption = listBoxOptionAXObject(listItems[i]);
if (listOption && !listOption->accessibilityIsIgnored())
m_children.append(listOption);
}
}
AXObject* AXListBox::listBoxOptionAXObject(HTMLElement* element) const
{
// skip hr elements
if (!element || isHTMLHRElement(*element))
return 0;
AXObject* listBoxObject = m_renderer->document().axObjectCache()->getOrCreate(ListBoxOptionRole);
toAXListBoxOption(listBoxObject)->setHTMLElement(element);
return listBoxObject;
}
AXObject* AXListBox::elementAccessibilityHitTest(const IntPoint& point) const
{
// the internal HTMLSelectElement methods for returning a listbox option at a point
// ignore optgroup elements.
if (!m_renderer)
return 0;
Node* node = m_renderer->node();
if (!node)
return 0;
LayoutRect parentRect = elementRect();
AXObject* listBoxOption = 0;
unsigned length = m_children.size();
for (unsigned i = 0; i < length; i++) {
LayoutRect rect = toRenderListBox(m_renderer)->itemBoundingBoxRect(parentRect.location(), i);
// The cast to HTMLElement below is safe because the only other possible listItem type
// would be a WMLElement, but WML builds don't use accessibility features at all.
if (rect.contains(point)) {
listBoxOption = m_children[i].get();
break;
}
}
if (listBoxOption && !listBoxOption->accessibilityIsIgnored())
return listBoxOption;
return axObjectCache()->getOrCreate(m_renderer);
}
} // namespace WebCore
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