third_party/WebKit/Source/core/dom/custom/CustomElementMicrotaskRunQueue.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CustomElementMicrotaskRunQueue_h
   6 #define CustomElementMicrotaskRunQueue_h
   7
   8 #include "platform/heap/Handle.h"
   9 #include "wtf/RefCounted.h"
  10 #include "wtf/WeakPtr.h"
  11
  12 namespace blink {
  13
  14 class CustomElementSyncMicrotaskQueue;
  15 class CustomElementAsyncImportMicrotaskQueue;
  16 class CustomElementMicrotaskStep;
  17 class HTMLImportLoader;
  18
  19 class CustomElementMicrotaskRunQueue : public RefCountedWillBeGarbageCollectedFinalized<CustomElementMicrotaskRunQueue> {
  20     DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(CustomElementMicrotaskRunQueue)
  21 public:
  22     static PassRefPtrWillBeRawPtr<CustomElementMicrotaskRunQueue> create() { return adoptRefWillBeNoop(new CustomElementMicrotaskRunQueue()); }
  23
  24     void enqueue(HTMLImportLoader* parentLoader, PassOwnPtrWillBeRawPtr<CustomElementMicrotaskStep>, bool importIsSync);
  25     void requestDispatchIfNeeded();
  26     bool isEmpty() const;
  27
  28     // Must be promptly finalized to prevent unsafe dispatching.
  29     EAGERLY_FINALIZE();
  30     DECLARE_TRACE();
  31
  32 private:
  33     static void dispatchIfAlive(WeakPtr<CustomElementMicrotaskRunQueue> self);
  34
  35     CustomElementMicrotaskRunQueue();
  36
  37     void dispatch();
  38
  39     WeakPtrFactory<CustomElementMicrotaskRunQueue> m_weakFactory;
  40     RefPtrWillBeMember<CustomElementSyncMicrotaskQueue> m_syncQueue;
  41     RefPtrWillBeMember<CustomElementAsyncImportMicrotaskQueue> m_asyncQueue;
  42     bool m_dispatchIsPending;
  43 };
  44
  45 } // namespace blink
  46
  47 #endif // CustomElementMicrotaskRunQueue_h