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28 #include "core/dom/ActiveDOMObject.h"
30 #include "core/dom/ExecutionContext.h"
34 ActiveDOMObject::ActiveDOMObject(ExecutionContext* executionContext)
35 : ContextLifecycleObserver(executionContext, ActiveDOMObjectType)
37 , m_suspendIfNeededCalled(false)
40 ASSERT(!executionContext || executionContext->isContextThread());
43 ActiveDOMObject::~ActiveDOMObject()
45 // ActiveDOMObject may be inherited by a sub-class whose life-cycle
46 // exceeds that of the associated ExecutionContext. In those cases,
47 // m_executionContext would/should have been nullified by
48 // ContextLifecycleObserver::contextDestroyed() (which we implement /
49 // inherit). Hence, we should ensure that this is not 0 before use it
51 if (!executionContext())
54 ASSERT(m_suspendIfNeededCalled);
55 ASSERT(executionContext()->isContextThread());
58 void ActiveDOMObject::suspendIfNeeded()
61 ASSERT(!m_suspendIfNeededCalled);
62 m_suspendIfNeededCalled = true;
64 if (ExecutionContext* context = executionContext())
65 context->suspendActiveDOMObjectIfNeeded(this);
68 bool ActiveDOMObject::hasPendingActivity() const
73 void ActiveDOMObject::suspend()
77 void ActiveDOMObject::resume()
81 void ActiveDOMObject::stop()
85 void ActiveDOMObject::didMoveToNewExecutionContext(ExecutionContext* context)
87 observeContext(context);
89 if (context->activeDOMObjectsAreStopped()) {
94 if (context->activeDOMObjectsAreSuspended()) {