blob: ee2682d03525df78eb323148011154509a3ffe15 [file] [log] [blame]
/*
* Copyright (C) 2010 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. OR
* 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 "modules/accessibility/AXMenuList.h"
#include "core/html/HTMLSelectElement.h"
#include "core/layout/LayoutMenuList.h"
#include "modules/accessibility/AXMenuListPopup.h"
#include "modules/accessibility/AXObjectCacheImpl.h"
namespace blink {
AXMenuList::AXMenuList(LayoutMenuList* layoutObject, AXObjectCacheImpl& axObjectCache)
: AXLayoutObject(layoutObject, axObjectCache)
{
}
AXMenuList* AXMenuList::create(LayoutMenuList* layoutObject, AXObjectCacheImpl& axObjectCache)
{
return new AXMenuList(layoutObject, axObjectCache);
}
AccessibilityRole AXMenuList::determineAccessibilityRole()
{
if ((m_ariaRole = determineAriaRoleAttribute()) != UnknownRole)
return m_ariaRole;
return PopUpButtonRole;
}
bool AXMenuList::press() const
{
if (!m_layoutObject)
return false;
HTMLSelectElement* select = toLayoutMenuList(m_layoutObject)->selectElement();
if (select->popupIsVisible())
select->hidePopup();
else
select->showPopup();
return true;
}
void AXMenuList::clearChildren()
{
if (m_children.isEmpty())
return;
// There's no reason to clear our AXMenuListPopup child. If we get a
// call to clearChildren, it's because the options might have changed,
// so call it on our popup.
ASSERT(m_children.size() == 1);
m_children[0]->clearChildren();
m_childrenDirty = false;
}
bool AXMenuList::nameFromContents() const
{
return false;
}
void AXMenuList::addChildren()
{
ASSERT(!isDetached());
m_haveChildren = true;
AXObjectCacheImpl& cache = axObjectCache();
AXObject* list = cache.getOrCreate(MenuListPopupRole);
if (!list)
return;
toAXMockObject(list)->setParent(this);
if (list->accessibilityIsIgnored()) {
cache.remove(list->axObjectID());
return;
}
m_children.append(list);
list->addChildren();
}
bool AXMenuList::isCollapsed() const
{
// Collapsed is the "default" state, so if the LayoutObject doesn't exist
// this makes slightly more sense than returning false.
if (!m_layoutObject)
return true;
return !toLayoutMenuList(m_layoutObject)->selectElement()->popupIsVisible();
}
AccessibilityExpanded AXMenuList::isExpanded() const
{
if (isCollapsed())
return ExpandedCollapsed;
return ExpandedExpanded;
}
bool AXMenuList::canSetFocusAttribute() const
{
if (!node())
return false;
return !toElement(node())->isDisabledFormControl();
}
void AXMenuList::didUpdateActiveOption(int optionIndex)
{
const auto& childObjects = children();
if (!childObjects.isEmpty()) {
ASSERT(childObjects.size() == 1);
ASSERT(childObjects[0]->isMenuListPopup());
if (childObjects[0]->isMenuListPopup()) {
if (AXMenuListPopup* popup = toAXMenuListPopup(childObjects[0].get()))
popup->didUpdateActiveOption(optionIndex);
}
}
axObjectCache().postNotification(this, AXObjectCacheImpl::AXMenuListValueChanged);
}
void AXMenuList::didShowPopup()
{
if (children().size() != 1)
return;
AXMenuListPopup* popup = toAXMenuListPopup(children()[0].get());
popup->didShow();
}
void AXMenuList::didHidePopup()
{
if (children().size() != 1)
return;
AXMenuListPopup* popup = toAXMenuListPopup(children()[0].get());
popup->didHide();
if (node() && node()->focused())
axObjectCache().postNotification(this, AXObjectCacheImpl::AXFocusedUIElementChanged);
}
} // namespace blink