blob: e2ef412122963dc5e5f72d49c72f1d9fee9b75b8 [file] [log] [blame]
/*
* Copyright (C) 2019 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. 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 INC. 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"
#if ENABLE(ACCESSIBILITY_ISOLATED_TREE)
#include "AXIsolatedTreeNode.h"
#include "AccessibilityObject.h"
namespace WebCore {
AXIsolatedTreeNode::AXIsolatedTreeNode(const AccessibilityObject& object)
: m_identifier(object.axObjectID())
{
ASSERT(isMainThread());
initializeAttributeData(object);
#if !ASSERT_DISABLED
m_initialized = true;
#endif
}
Ref<AXIsolatedTreeNode> AXIsolatedTreeNode::create(const AccessibilityObject& object)
{
return adoptRef(*new AXIsolatedTreeNode(object));
}
AXIsolatedTreeNode::~AXIsolatedTreeNode() = default;
void AXIsolatedTreeNode::initializeAttributeData(const AccessibilityObject& object)
{
setProperty(AXPropertyName::RoleValue, static_cast<int>(object.roleValue()));
setProperty(AXPropertyName::IsAttachment, object.isAttachment());
setProperty(AXPropertyName::IsMediaControlLabel, object.isMediaControlLabel());
setProperty(AXPropertyName::IsLink, object.isLink());
setProperty(AXPropertyName::IsImageMapLink, object.isImageMapLink());
setProperty(AXPropertyName::IsImage, object.isImage());
setProperty(AXPropertyName::IsFileUploadButton, object.isFileUploadButton());
setProperty(AXPropertyName::IsAccessibilityIgnored, object.accessibilityIsIgnored());
setProperty(AXPropertyName::IsTree, object.isTree());
setProperty(AXPropertyName::IsScrollbar, object.isScrollbar());
setProperty(AXPropertyName::RelativeFrame, object.relativeFrame());
setProperty(AXPropertyName::SpeechHint, object.speechHintAttributeValue().isolatedCopy());
setProperty(AXPropertyName::Title, object.titleAttributeValue().isolatedCopy());
setProperty(AXPropertyName::Description, object.descriptionAttributeValue().isolatedCopy());
setProperty(AXPropertyName::HelpText, object.helpTextAttributeValue().isolatedCopy());
}
void AXIsolatedTreeNode::setProperty(AXPropertyName propertyName, AttributeValueVariant&& value, bool shouldRemove)
{
ASSERT(!m_initialized);
ASSERT(isMainThread());
if (shouldRemove)
m_attributeMap.remove(propertyName);
else
m_attributeMap.set(propertyName, value);
}
void AXIsolatedTreeNode::appendChild(AXID axID)
{
ASSERT(isMainThread());
m_children.append(axID);
}
void AXIsolatedTreeNode::setParent(AXID parent)
{
ASSERT(isMainThread());
m_parent = parent;
}
void AXIsolatedTreeNode::setTreeIdentifier(AXIsolatedTreeID treeIdentifier)
{
m_treeIdentifier = treeIdentifier;
if (auto tree = AXIsolatedTree::treeForID(m_treeIdentifier))
m_cachedTree = makeWeakPtr(tree.get());
}
AccessibilityObjectInterface* AXIsolatedTreeNode::focusedUIElement() const
{
if (auto focusedElement = tree()->focusedUIElement())
return focusedElement.get();
return nullptr;
}
AccessibilityObjectInterface* AXIsolatedTreeNode::parentObjectInterfaceUnignored() const
{
return tree()->nodeForID(parent()).get();
}
AccessibilityObjectInterface* AXIsolatedTreeNode::accessibilityHitTest(const IntPoint& point) const
{
if (!relativeFrame().contains(point))
return nullptr;
for (auto childID : children()) {
auto child = tree()->nodeForID(childID);
ASSERT(child);
if (child && child->relativeFrame().contains(point))
return child->accessibilityHitTest(point);
}
return const_cast<AXIsolatedTreeNode*>(this);
}
AXIsolatedTree* AXIsolatedTreeNode::tree() const
{
return m_cachedTree.get();
}
FloatRect AXIsolatedTreeNode::rectAttributeValue(AXPropertyName propertyName) const
{
auto value = m_attributeMap.get(propertyName);
return WTF::switchOn(value,
[&zeroRect] (Optional<FloatRect> typedValue) {
if (!typedValue)
return FloatRect { };
return typedValue.value();
},
[] (auto&) { return FloatRect { }; }
);
}
double AXIsolatedTreeNode::doubleAttributeValue(AXPropertyName propertyName) const
{
auto value = m_attributeMap.get(propertyName);
return WTF::switchOn(value,
[&] (double& typedValue) { return typedValue; },
[] (auto&) { return 0; }
);
}
unsigned AXIsolatedTreeNode::unsignedAttributeValue(AXPropertyName propertyName) const
{
auto value = m_attributeMap.get(propertyName);
return WTF::switchOn(value,
[&] (unsigned& typedValue) { return typedValue; },
[] (auto&) { return 0; }
);
}
bool AXIsolatedTreeNode::boolAttributeValue(AXPropertyName propertyName) const
{
auto value = m_attributeMap.get(propertyName);
return WTF::switchOn(value,
[&] (bool& typedValue) { return typedValue; },
[] (auto&) { return false; }
);
}
const String AXIsolatedTreeNode::stringAttributeValue(AXPropertyName propertyName) const
{
auto value = m_attributeMap.get(propertyName);
return WTF::switchOn(value,
[&] (String& typedValue) { return typedValue; },
[] (auto&) { return emptyString(); }
);
}
int AXIsolatedTreeNode::intAttributeValue(AXPropertyName propertyName) const
{
auto value = m_attributeMap.get(propertyName);
return WTF::switchOn(value,
[&] (int& typedValue) { return typedValue; },
[] (auto&) { return 0; }
);
}
} // namespace WebCore
#endif // ENABLE((ACCESSIBILITY_ISOLATED_TREE)