138 lines
5.1 KiB
C++
138 lines
5.1 KiB
C++
/*
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* Copyright (C) 2015, 2016 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "CustomElementRegistry.h"
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#include "CustomElementReactionQueue.h"
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#include "DOMWindow.h"
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#include "Document.h"
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#include "JSCustomElementInterface.h"
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#include "JSDOMPromiseDeferred.h"
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#include "MathMLNames.h"
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#include "QualifiedName.h"
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#include "ShadowRoot.h"
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#include "TypedElementDescendantIterator.h"
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#include <JavaScriptCore/JSCJSValueInlines.h>
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#include <wtf/text/AtomString.h>
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namespace WebCore {
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Ref<CustomElementRegistry> CustomElementRegistry::create(DOMWindow& window, ScriptExecutionContext* scriptExecutionContext)
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{
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return adoptRef(*new CustomElementRegistry(window, scriptExecutionContext));
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}
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CustomElementRegistry::CustomElementRegistry(DOMWindow& window, ScriptExecutionContext* scriptExecutionContext)
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: ContextDestructionObserver(scriptExecutionContext)
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, m_window(window)
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{
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}
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CustomElementRegistry::~CustomElementRegistry() = default;
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// https://dom.spec.whatwg.org/#concept-shadow-including-tree-order
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static void enqueueUpgradeInShadowIncludingTreeOrder(ContainerNode& node, JSCustomElementInterface& elementInterface)
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{
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for (Element* element = ElementTraversal::firstWithin(node); element; element = ElementTraversal::next(*element)) {
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if (element->isCustomElementUpgradeCandidate() && element->tagQName() == elementInterface.name())
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element->enqueueToUpgrade(elementInterface);
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if (auto* shadowRoot = element->shadowRoot()) {
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if (shadowRoot->mode() != ShadowRootMode::UserAgent)
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enqueueUpgradeInShadowIncludingTreeOrder(*shadowRoot, elementInterface);
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}
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}
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}
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RefPtr<DeferredPromise> CustomElementRegistry::addElementDefinition(Ref<JSCustomElementInterface>&& elementInterface)
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{
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AtomString localName = elementInterface->name().localName();
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ASSERT(!m_nameMap.contains(localName));
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m_constructorMap.add(elementInterface->constructor(), elementInterface.ptr());
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m_nameMap.add(localName, elementInterface.copyRef());
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if (auto* document = m_window.document())
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enqueueUpgradeInShadowIncludingTreeOrder(*document, elementInterface.get());
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return m_promiseMap.take(localName);
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}
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JSCustomElementInterface* CustomElementRegistry::findInterface(const Element& element) const
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{
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return findInterface(element.tagQName());
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}
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JSCustomElementInterface* CustomElementRegistry::findInterface(const QualifiedName& name) const
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{
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if (name.namespaceURI() != HTMLNames::xhtmlNamespaceURI)
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return nullptr;
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return m_nameMap.get(name.localName());
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}
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JSCustomElementInterface* CustomElementRegistry::findInterface(const AtomString& name) const
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{
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return m_nameMap.get(name);
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}
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JSCustomElementInterface* CustomElementRegistry::findInterface(const JSC::JSObject* constructor) const
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{
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return m_constructorMap.get(constructor);
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}
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bool CustomElementRegistry::containsConstructor(const JSC::JSObject* constructor) const
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{
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return m_constructorMap.contains(constructor);
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}
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JSC::JSValue CustomElementRegistry::get(const AtomString& name)
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{
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if (auto* elementInterface = m_nameMap.get(name))
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return elementInterface->constructor();
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return JSC::jsUndefined();
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}
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static void upgradeElementsInShadowIncludingDescendants(ContainerNode& root)
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{
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for (auto& element : descendantsOfType<Element>(root)) {
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if (element.isCustomElementUpgradeCandidate())
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CustomElementReactionQueue::tryToUpgradeElement(element);
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if (auto* shadowRoot = element.shadowRoot())
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upgradeElementsInShadowIncludingDescendants(*shadowRoot);
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}
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}
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void CustomElementRegistry::upgrade(Node& root)
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{
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if (!is<ContainerNode>(root))
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return;
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if (is<Element>(root) && downcast<Element>(root).isCustomElementUpgradeCandidate())
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CustomElementReactionQueue::tryToUpgradeElement(downcast<Element>(root));
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upgradeElementsInShadowIncludingDescendants(downcast<ContainerNode>(root));
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}
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}
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