| /* |
| * Copyright (C) 2010 Google 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 COMPUTER, 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 COMPUTER, 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. |
| * |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_DOM_EVENTS_EVENT_QUEUE_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_DOM_EVENTS_EVENT_QUEUE_H_ |
| |
| #include "third_party/blink/public/platform/task_type.h" |
| #include "third_party/blink/renderer/core/execution_context/execution_context_lifecycle_observer.h" |
| #include "third_party/blink/renderer/platform/wtf/linked_hash_set.h" |
| |
| namespace blink { |
| |
| class Event; |
| class ExecutionContext; |
| |
| class CORE_EXPORT EventQueue final : public GarbageCollected<EventQueue>, |
| public ExecutionContextLifecycleObserver { |
| USING_GARBAGE_COLLECTED_MIXIN(EventQueue); |
| |
| public: |
| EventQueue(ExecutionContext*, TaskType); |
| ~EventQueue(); |
| |
| void Trace(Visitor*) override; |
| bool EnqueueEvent(const base::Location&, Event&); |
| void CancelAllEvents(); |
| bool HasPendingEvents() const; |
| |
| private: |
| bool RemoveEvent(Event&); |
| void DispatchEvent(Event*); |
| |
| void ContextDestroyed() override; |
| void Close(ExecutionContext*); |
| void DoCancelAllEvents(ExecutionContext*); |
| |
| const TaskType task_type_; |
| HeapLinkedHashSet<Member<Event>> queued_events_; |
| bool is_closed_; |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_CORE_DOM_EVENTS_EVENT_QUEUE_H_ |