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/*
* Copyright (C) 2022 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"
#include "CustomElementDefaultARIA.h"
#include "Element.h"
#include "ElementInlines.h"
#include "HTMLNames.h"
#include "SpaceSplitString.h"
#include <wtf/StdLibExtras.h>
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(CustomElementDefaultARIA);
CustomElementDefaultARIA::CustomElementDefaultARIA() = default;
CustomElementDefaultARIA::~CustomElementDefaultARIA() = default;
void CustomElementDefaultARIA::setValueForAttribute(const QualifiedName& name, const AtomString& value)
{
m_map.set(name, value);
}
static bool isElementVisible(const Element& element, const Element& thisElement)
{
return !element.isConnected() || element.isInDocumentTree() || thisElement.isDescendantOrShadowDescendantOf(element.protectedRootNode());
}
const AtomString& CustomElementDefaultARIA::valueForAttribute(const Element& thisElement, const QualifiedName& name) const
{
auto it = m_map.find(name);
if (it == m_map.end())
return nullAtom();
return std::visit(WTF::makeVisitor([&](const AtomString& stringValue) -> const AtomString& {
return stringValue;
}, [&](const WeakPtr<Element, WeakPtrImplWithEventTargetData>& weakElementValue) -> const AtomString& {
RefPtr elementValue = weakElementValue.get();
if (elementValue && isElementVisible(*elementValue, thisElement))
return elementValue->attributeWithoutSynchronization(HTMLNames::idAttr);
return nullAtom();
}, [&](const Vector<WeakPtr<Element, WeakPtrImplWithEventTargetData>>& elements) -> const AtomString& {
StringBuilder idList;
for (auto& weakElement : elements) {
RefPtr element = weakElement.get();
if (element && isElementVisible(*element, thisElement)) {
if (idList.length())
idList.append(' ');
idList.append(element->attributeWithoutSynchronization(HTMLNames::idAttr));
}
}
// FIXME: This should probably be using the idList we just built.
return nullAtom();
}), it->value);
}
bool CustomElementDefaultARIA::hasAttribute(const QualifiedName& name) const
{
return m_map.find(name) != m_map.end();
}
RefPtr<Element> CustomElementDefaultARIA::elementForAttribute(const Element& thisElement, const QualifiedName& name) const
{
auto it = m_map.find(name);
if (it == m_map.end())
return nullptr;
RefPtr<Element> result;
std::visit(WTF::makeVisitor([&](const AtomString& stringValue) {
if (thisElement.isInTreeScope())
result = thisElement.treeScope().elementByIdResolvingReferenceTarget(stringValue);
}, [&](const WeakPtr<Element, WeakPtrImplWithEventTargetData>& weakElementValue) {
RefPtr elementValue = weakElementValue.get();
if (elementValue && isElementVisible(*elementValue, thisElement))
result = WTFMove(elementValue);
}, [&](const Vector<WeakPtr<Element, WeakPtrImplWithEventTargetData>>&) {
RELEASE_ASSERT_NOT_REACHED();
}), it->value);
return result;
}
void CustomElementDefaultARIA::setElementForAttribute(const QualifiedName& name, Element* element)
{
m_map.set(name, WeakPtr<Element, WeakPtrImplWithEventTargetData> { element });
}
Vector<Ref<Element>> CustomElementDefaultARIA::elementsForAttribute(const Element& thisElement, const QualifiedName& name) const
{
Vector<Ref<Element>> result;
auto it = m_map.find(name);
if (it == m_map.end())
return result;
std::visit(WTF::makeVisitor([&](const AtomString& stringValue) {
if (thisElement.isInTreeScope()) {
SpaceSplitString idList { stringValue, SpaceSplitString::ShouldFoldCase::No };
result = WTF::compactMap(idList, [&](auto& id) {
RefPtr elementForId = thisElement.treeScope().getElementById(id);
return elementForId ? elementForId->resolveReferenceTarget() : nullptr;
});
}
}, [&](const WeakPtr<Element, WeakPtrImplWithEventTargetData>& weakElementValue) {
RefPtr element = weakElementValue.get();
if (element && isElementVisible(*element, thisElement))
result.append(element.releaseNonNull());
}, [&](const Vector<WeakPtr<Element, WeakPtrImplWithEventTargetData>>& elements) {
result.reserveInitialCapacity(elements.size());
for (auto& weakElement : elements) {
if (RefPtr element = weakElement.get(); element && isElementVisible(*element, thisElement))
result.append(element.releaseNonNull());
}
}), it->value);
return result;
}
void CustomElementDefaultARIA::setElementsForAttribute(const QualifiedName& name, std::optional<Vector<Ref<Element>>>&& values)
{
Vector<WeakPtr<Element, WeakPtrImplWithEventTargetData>> elements;
if (values) {
for (auto& element : *values) {
elements.append(WeakPtr<Element, WeakPtrImplWithEventTargetData> { element });
}
}
m_map.set(name, WTFMove(elements));
}
} // namespace WebCore
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