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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CustomElementRegistry_h
#define CustomElementRegistry_h
#include "base/gtest_prod_util.h"
#include "bindings/core/v8/ScriptPromise.h"
#include "bindings/core/v8/ScriptWrappable.h"
#include "core/CoreExport.h"
#include "platform/heap/Handle.h"
#include "wtf/Noncopyable.h"
#include "wtf/text/AtomicString.h"
#include "wtf/text/AtomicStringHash.h"
namespace blink {
class CustomElementDefinition;
class CustomElementDefinitionBuilder;
class CustomElementDescriptor;
class Element;
class ElementDefinitionOptions;
class ExceptionState;
class LocalDOMWindow;
class ScriptPromiseResolver;
class ScriptState;
class ScriptValue;
class V0CustomElementRegistrationContext;
class CORE_EXPORT CustomElementRegistry final
: public GarbageCollectedFinalized<CustomElementRegistry>,
public ScriptWrappable {
DEFINE_WRAPPERTYPEINFO();
WTF_MAKE_NONCOPYABLE(CustomElementRegistry);
public:
static CustomElementRegistry* create(const LocalDOMWindow*);
virtual ~CustomElementRegistry() = default;
CustomElementDefinition* define(ScriptState*,
const AtomicString& name,
const ScriptValue& constructor,
const ElementDefinitionOptions&,
ExceptionState&);
CustomElementDefinition* define(const AtomicString& name,
CustomElementDefinitionBuilder&,
const ElementDefinitionOptions&,
ExceptionState&);
ScriptValue get(const AtomicString& name);
bool nameIsDefined(const AtomicString& name) const;
CustomElementDefinition* definitionForName(const AtomicString& name) const;
// TODO(dominicc): Switch most callers of definitionForName to
// definitionFor when implementing type extensions.
CustomElementDefinition* definitionFor(const CustomElementDescriptor&) const;
// TODO(dominicc): Consider broadening this API when type extensions are
// implemented.
void addCandidate(Element*);
ScriptPromise whenDefined(ScriptState*,
const AtomicString& name,
ExceptionState&);
void entangle(V0CustomElementRegistrationContext*);
DECLARE_TRACE();
DECLARE_VIRTUAL_TRACE_WRAPPERS();
private:
friend class CustomElementRegistryTest;
CustomElementRegistry(const LocalDOMWindow*);
bool v0NameIsDefined(const AtomicString& name);
void collectCandidates(const CustomElementDescriptor&,
HeapVector<Member<Element>>*);
class ElementDefinitionIsRunning;
bool m_elementDefinitionIsRunning;
using DefinitionMap =
HeapHashMap<AtomicString, Member<CustomElementDefinition>>;
DefinitionMap m_definitions;
Member<const LocalDOMWindow> m_owner;
using V0RegistrySet =
HeapHashSet<WeakMember<V0CustomElementRegistrationContext>>;
Member<V0RegistrySet> m_v0;
using UpgradeCandidateSet = HeapHashSet<WeakMember<Element>>;
using UpgradeCandidateMap =
HeapHashMap<AtomicString, Member<UpgradeCandidateSet>>;
Member<UpgradeCandidateMap> m_upgradeCandidates;
using WhenDefinedPromiseMap =
HeapHashMap<AtomicString, Member<ScriptPromiseResolver>>;
WhenDefinedPromiseMap m_whenDefinedPromiseMap;
};
} // namespace blink
#endif // CustomElementRegistry_h
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