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55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef CustomElementMicrotaskDispatcher_h
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#define CustomElementMicrotaskDispatcher_h
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#include "platform/heap/Handle.h"
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#include "wtf/Noncopyable.h"
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#include "wtf/PassOwnPtr.h"
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#include "wtf/Vector.h"
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namespace blink {
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class CustomElementCallbackQueue;
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class CustomElementMicrotaskImportStep;
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class CustomElementMicrotaskStep;
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class Document;
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class HTMLImportLoader;
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class CustomElementMicrotaskDispatcher FINAL : public NoBaseWillBeGarbageCollected<CustomElementMicrotaskDispatcher> {
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WTF_MAKE_NONCOPYABLE(CustomElementMicrotaskDispatcher);
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DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(CustomElementMicrotaskDispatcher);
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public:
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static CustomElementMicrotaskDispatcher& instance();
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void enqueue(CustomElementCallbackQueue*);
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bool elementQueueIsEmpty() { return m_elements.isEmpty(); }
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void trace(Visitor*);
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private:
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CustomElementMicrotaskDispatcher();
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void ensureMicrotaskScheduledForElementQueue();
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void ensureMicrotaskScheduled();
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static void dispatch();
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void doDispatch();
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bool m_hasScheduledMicrotask;
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enum {
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Quiescent,
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Resolving,
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DispatchingCallbacks
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} m_phase;
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WillBeHeapVector<RawPtrWillBeMember<CustomElementCallbackQueue> > m_elements;
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};
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}
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#endif // CustomElementMicrotaskDispatcher_h
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