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/*
* Copyright (C) 2015, 2016 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.
*/
#pragma once
#include "ContextDestructionObserver.h"
#include "Element.h"
#include "EventTarget.h"
#include "QualifiedName.h"
#include "TreeScope.h"
#include <wtf/Lock.h>
#include <wtf/RobinHoodHashMap.h>
#include <wtf/RobinHoodHashSet.h>
#include <wtf/WeakHashMap.h>
#include <wtf/WeakListHashSet.h>
#include <wtf/WeakPtr.h>
#include <wtf/text/AtomString.h>
#include <wtf/text/AtomStringHash.h>
namespace JSC {
class JSGlobalObject;
class JSObject;
class JSValue;
}
namespace WebCore {
class CustomElementRegistry;
class LocalDOMWindow;
class DeferredPromise;
class Document;
class Element;
class JSCustomElementInterface;
class Node;
class QualifiedName;
class CustomElementRegistry : public RefCounted<CustomElementRegistry>, public ContextDestructionObserver {
public:
static Ref<CustomElementRegistry> create(ScriptExecutionContext&, LocalDOMWindow&);
static Ref<CustomElementRegistry> create(ScriptExecutionContext&);
~CustomElementRegistry();
bool isScoped() const { return !m_window; }
Document* document() const;
static CustomElementRegistry* registryForElement(const Element& element)
{
if (element.usesNullCustomElementRegistry())
return nullptr;
if (UNLIKELY(element.usesScopedCustomElementRegistryMap()))
return scopedCustomElementRegistryMap().get(element);
return element.treeScope().customElementRegistry();
}
static CustomElementRegistry* registryForNodeOrTreeScope(const Node& node, const TreeScope& treeScope)
{
if (node.usesNullCustomElementRegistry()) {
ASSERT(is<Element>(node));
return nullptr;
}
if (auto* element = dynamicDowncast<Element>(node); UNLIKELY(element && element->usesScopedCustomElementRegistryMap()))
return scopedCustomElementRegistryMap().get(*element);
return treeScope.customElementRegistry();
}
static void addToScopedCustomElementRegistryMap(Element&, CustomElementRegistry&);
static void removeFromScopedCustomElementRegistryMap(Element&);
void didAssociateWithDocument(Document&);
RefPtr<DeferredPromise> addElementDefinition(Ref<JSCustomElementInterface>&&);
bool& elementDefinitionIsRunning() { return m_elementDefinitionIsRunning; }
JSCustomElementInterface* findInterface(const Element&) const;
JSCustomElementInterface* findInterface(const QualifiedName&) const;
JSCustomElementInterface* findInterface(const AtomString&) const;
RefPtr<JSCustomElementInterface> findInterface(const JSC::JSObject*) const;
bool containsConstructor(const JSC::JSObject*) const;
JSC::JSValue get(const AtomString&);
String getName(JSC::JSValue);
void upgrade(Node& root);
void initialize(Node& root);
MemoryCompactRobinHoodHashMap<AtomString, Ref<DeferredPromise>>& promiseMap() { return m_promiseMap; }
bool isShadowDisabled(const AtomString& name) const { return m_disabledShadowSet.contains(name); }
template<typename Visitor> void visitJSCustomElementInterfaces(Visitor&) const;
private:
CustomElementRegistry(ScriptExecutionContext&, LocalDOMWindow&);
CustomElementRegistry(ScriptExecutionContext&);
static WeakHashMap<Element, Ref<CustomElementRegistry>, WeakPtrImplWithEventTargetData>& scopedCustomElementRegistryMap();
WeakPtr<LocalDOMWindow, WeakPtrImplWithEventTargetData> m_window;
UncheckedKeyHashMap<AtomString, Ref<JSCustomElementInterface>> m_nameMap;
UncheckedKeyHashMap<const JSC::JSObject*, JSCustomElementInterface*> m_constructorMap WTF_GUARDED_BY_LOCK(m_constructorMapLock);
MemoryCompactRobinHoodHashMap<AtomString, Ref<DeferredPromise>> m_promiseMap;
MemoryCompactRobinHoodHashSet<AtomString> m_disabledShadowSet;
WeakListHashSet<Document, WeakPtrImplWithEventTargetData> m_associatedDocuments;
bool m_elementDefinitionIsRunning { false };
mutable Lock m_constructorMapLock;
friend class ElementDefinitionIsRunningSetForScope;
};
}
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