| // 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 NullExecutionContext_h |
| #define NullExecutionContext_h |
| |
| #include "core/dom/ExecutionContext.h" |
| #include "core/dom/SecurityContext.h" |
| #include "core/events/EventQueue.h" |
| #include "platform/heap/Handle.h" |
| #include "platform/weborigin/KURL.h" |
| #include "wtf/RefCounted.h" |
| |
| namespace WebCore { |
| |
| class NullExecutionContext FINAL : public RefCountedWillBeGarbageCollectedFinalized<NullExecutionContext>, public SecurityContext, public ExecutionContext { |
| WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(NullExecutionContext); |
| public: |
| NullExecutionContext(); |
| |
| virtual EventQueue* eventQueue() const OVERRIDE { return m_queue.get(); } |
| |
| virtual bool tasksNeedSuspension() OVERRIDE { return m_tasksNeedSuspension; } |
| void setTasksNeedSuspension(bool flag) { m_tasksNeedSuspension = flag; } |
| |
| void trace(Visitor* visitor) |
| { |
| visitor->trace(m_queue); |
| ExecutionContext::trace(visitor); |
| } |
| |
| virtual void reportBlockedScriptExecutionToInspector(const String& directiveText) OVERRIDE { } |
| virtual SecurityContext& securityContext() OVERRIDE { return *this; } |
| |
| #if !ENABLE(OILPAN) |
| using RefCounted<NullExecutionContext>::ref; |
| using RefCounted<NullExecutionContext>::deref; |
| |
| virtual void refExecutionContext() OVERRIDE { ref(); } |
| virtual void derefExecutionContext() OVERRIDE { deref(); } |
| #endif |
| |
| protected: |
| virtual const KURL& virtualURL() const OVERRIDE { return m_dummyURL; } |
| virtual KURL virtualCompleteURL(const String&) const OVERRIDE { return m_dummyURL; } |
| |
| private: |
| bool m_tasksNeedSuspension; |
| OwnPtrWillBeMember<EventQueue> m_queue; |
| |
| KURL m_dummyURL; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // NullExecutionContext_h |