This source file includes following definitions.
- addObserver
- removeObserver
- notifyResumingActiveDOMObjects
- notifySuspendingActiveDOMObjects
- notifyWillStopActiveDOMObjects
- notifyStoppingActiveDOMObjects
- hasPendingActivity
#include "config.h"
#include "core/dom/ContextLifecycleNotifier.h"
#include "core/dom/ExecutionContext.h"
#include "wtf/TemporaryChange.h"
namespace WebCore {
ContextLifecycleNotifier::ContextLifecycleNotifier(ExecutionContext* context)
: LifecycleNotifier<ExecutionContext>(context)
{
}
ContextLifecycleNotifier::~ContextLifecycleNotifier()
{
}
void ContextLifecycleNotifier::addObserver(ContextLifecycleNotifier::Observer* observer)
{
LifecycleNotifier<ExecutionContext>::addObserver(observer);
RELEASE_ASSERT(m_iterating != IteratingOverContextObservers);
if (observer->observerType() == Observer::ActiveDOMObjectType) {
RELEASE_ASSERT(m_iterating != IteratingOverActiveDOMObjects);
m_activeDOMObjects.add(static_cast<ActiveDOMObject*>(observer));
}
}
void ContextLifecycleNotifier::removeObserver(ContextLifecycleNotifier::Observer* observer)
{
LifecycleNotifier<ExecutionContext>::removeObserver(observer);
RELEASE_ASSERT(m_iterating != IteratingOverContextObservers);
if (observer->observerType() == Observer::ActiveDOMObjectType) {
RELEASE_ASSERT(m_iterating != IteratingOverActiveDOMObjects);
m_activeDOMObjects.remove(static_cast<ActiveDOMObject*>(observer));
}
}
void ContextLifecycleNotifier::notifyResumingActiveDOMObjects()
{
TemporaryChange<IterationType> scope(this->m_iterating, IteratingOverActiveDOMObjects);
ActiveDOMObjectSet::iterator activeObjectsEnd = m_activeDOMObjects.end();
for (ActiveDOMObjectSet::iterator iter = m_activeDOMObjects.begin(); iter != activeObjectsEnd; ++iter) {
ASSERT((*iter)->executionContext() == context());
ASSERT((*iter)->suspendIfNeededCalled());
(*iter)->resume();
}
}
void ContextLifecycleNotifier::notifySuspendingActiveDOMObjects()
{
TemporaryChange<IterationType> scope(this->m_iterating, IteratingOverActiveDOMObjects);
ActiveDOMObjectSet::iterator activeObjectsEnd = m_activeDOMObjects.end();
for (ActiveDOMObjectSet::iterator iter = m_activeDOMObjects.begin(); iter != activeObjectsEnd; ++iter) {
ASSERT((*iter)->executionContext() == context());
ASSERT((*iter)->suspendIfNeededCalled());
(*iter)->suspend();
}
}
void ContextLifecycleNotifier::notifyWillStopActiveDOMObjects()
{
TemporaryChange<IterationType> scope(this->m_iterating, IteratingOverActiveDOMObjects);
ActiveDOMObjectSet::iterator activeObjectsEnd = m_activeDOMObjects.end();
for (ActiveDOMObjectSet::iterator iter = m_activeDOMObjects.begin(); iter != activeObjectsEnd; ++iter) {
ASSERT((*iter)->executionContext() == context());
ASSERT((*iter)->suspendIfNeededCalled());
(*iter)->willStop();
}
}
void ContextLifecycleNotifier::notifyStoppingActiveDOMObjects()
{
TemporaryChange<IterationType> scope(this->m_iterating, IteratingOverActiveDOMObjects);
ActiveDOMObjectSet::iterator activeObjectsEnd = m_activeDOMObjects.end();
for (ActiveDOMObjectSet::iterator iter = m_activeDOMObjects.begin(); iter != activeObjectsEnd; ++iter) {
ASSERT((*iter)->executionContext() == context());
ASSERT((*iter)->suspendIfNeededCalled());
(*iter)->stop();
}
}
bool ContextLifecycleNotifier::hasPendingActivity() const
{
ActiveDOMObjectSet::const_iterator activeObjectsEnd = activeDOMObjects().end();
for (ActiveDOMObjectSet::const_iterator iter = activeDOMObjects().begin(); iter != activeObjectsEnd; ++iter) {
if ((*iter)->hasPendingActivity())
return true;
}
return false;
}
}