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/*
* Copyright (C) 2008 Apple Inc. All Rights Reserved.
* Copyright (C) 2013 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.
*
*/
#include "third_party/blink/renderer/core/dom/context_lifecycle_notifier.h"
#include "base/auto_reset.h"
#include "third_party/blink/renderer/core/execution_context/pausable_object.h"
namespace blink {
void ContextLifecycleNotifier::NotifyResumingPausableObjects() {
ForEachObserver([&](ContextLifecycleObserver* observer) {
if (observer->ObserverType() !=
ContextLifecycleObserver::kPausableObjectType)
return;
PausableObject* pausable_object = static_cast<PausableObject*>(observer);
#if DCHECK_IS_ON()
DCHECK_EQ(pausable_object->GetExecutionContext(), Context());
DCHECK(pausable_object->PauseIfNeededCalled());
#endif
pausable_object->ContextUnpaused();
});
}
void ContextLifecycleNotifier::NotifySuspendingPausableObjects(
PauseState state) {
ForEachObserver([&](ContextLifecycleObserver* observer) {
if (observer->ObserverType() !=
ContextLifecycleObserver::kPausableObjectType)
return;
PausableObject* pausable_object = static_cast<PausableObject*>(observer);
#if DCHECK_IS_ON()
DCHECK_EQ(pausable_object->GetExecutionContext(), Context());
DCHECK(pausable_object->PauseIfNeededCalled());
#endif
pausable_object->ContextPaused(state);
});
}
unsigned ContextLifecycleNotifier::PausableObjectCount() const {
DCHECK(!IsIteratingOverObservers());
unsigned pausable_objects = 0;
ForEachObserver([&](ContextLifecycleObserver* observer) {
if (observer->ObserverType() !=
ContextLifecycleObserver::kPausableObjectType)
return;
pausable_objects++;
});
return pausable_objects;
}
#if DCHECK_IS_ON()
bool ContextLifecycleNotifier::Contains(PausableObject* object) const {
DCHECK(!IsIteratingOverObservers());
bool found = false;
ForEachObserver([&](ContextLifecycleObserver* observer) {
if (observer->ObserverType() !=
ContextLifecycleObserver::kPausableObjectType)
return;
PausableObject* pausable_object = static_cast<PausableObject*>(observer);
if (pausable_object == object)
found = true;
});
return found;
}
#endif
} // namespace blink
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