| // Copyright 2014 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 CustomElementMicrotaskDispatcher_h |
| #define CustomElementMicrotaskDispatcher_h |
| |
| #include "core/dom/custom/CustomElementMicrotaskQueue.h" |
| #include "wtf/Noncopyable.h" |
| #include "wtf/PassOwnPtr.h" |
| #include "wtf/Vector.h" |
| |
| namespace WebCore { |
| |
| class CustomElementCallbackQueue; |
| class CustomElementMicrotaskImportStep; |
| class CustomElementMicrotaskStep; |
| class HTMLImport; |
| |
| class CustomElementMicrotaskDispatcher { |
| WTF_MAKE_NONCOPYABLE(CustomElementMicrotaskDispatcher); |
| public: |
| ~CustomElementMicrotaskDispatcher() { } |
| |
| static CustomElementMicrotaskDispatcher& instance(); |
| |
| void enqueue(HTMLImport*, PassOwnPtr<CustomElementMicrotaskStep>); |
| void enqueue(CustomElementCallbackQueue*); |
| |
| void importDidFinish(CustomElementMicrotaskImportStep*); |
| |
| bool elementQueueIsEmpty() { return m_elements.isEmpty(); } |
| |
| private: |
| CustomElementMicrotaskDispatcher(); |
| |
| void ensureMicrotaskScheduled(); |
| |
| static void dispatch(); |
| void doDispatch(); |
| |
| bool m_hasScheduledMicrotask; |
| enum { |
| Quiescent, |
| Resolving, |
| DispatchingCallbacks |
| } m_phase; |
| |
| CustomElementMicrotaskQueue m_resolutionAndImports; |
| Vector<CustomElementCallbackQueue*> m_elements; |
| }; |
| |
| } |
| |
| #endif // CustomElementMicrotaskDispatcher_h |