void V8MutationObserver::visitDOMWrapper(void* object, const v8::Persistent<v8::Object>& wrapper, v8::Isolate* isolate)
{
MutationObserver* observer = static_cast<MutationObserver*>(object);
HashSet<Node*> observedNodes = observer->getObservedNodes();
for (HashSet<Node*>::iterator it = observedNodes.begin(); it != observedNodes.end(); ++it) {
v8::UniqueId id(reinterpret_cast<intptr_t>(V8GCController::opaqueRootForGC(*it, isolate)));
isolate->SetReferenceFromGroup(id, wrapper);
}
}
void V8MutationObserver::visitDOMWrapper(v8::Isolate* isolate, ScriptWrappable* scriptWrappable, const v8::Persistent<v8::Object>& wrapper)
{
MutationObserver* observer = scriptWrappable->toImpl<MutationObserver>();
HeapHashSet<Member<Node>> observedNodes = observer->getObservedNodes();
for (HeapHashSet<Member<Node>>::iterator it = observedNodes.begin(); it != observedNodes.end(); ++it) {
v8::UniqueId id(reinterpret_cast<intptr_t>(V8GCController::opaqueRootForGC(isolate, *it)));
isolate->SetReferenceFromGroup(id, wrapper);
}
}
bool JSMutationObserverOwner::isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown> handle, void*, SlotVisitor& visitor)
{
MutationObserver* observer = jsCast<JSMutationObserver*>(handle.get().asCell())->impl();
HashSet<Node*> observedNodes = observer->getObservedNodes();
for (HashSet<Node*>::iterator it = observedNodes.begin(); it != observedNodes.end(); ++it) {
if (visitor.containsOpaqueRoot(root(*it)))
return true;
}
return false;
}
void MutationObserverInterestGroup::enqueueMutationRecord(PassRefPtr<MutationRecord> prpMutation)
{
RefPtr<MutationRecord> mutation = prpMutation;
RefPtr<MutationRecord> mutationWithNullOldValue = nullptr;
for (HashMap<RawPtr<MutationObserver>, MutationRecordDeliveryOptions>::iterator iter = m_observers.begin(); iter != m_observers.end(); ++iter) {
MutationObserver* observer = iter->key;
if (hasOldValue(iter->value)) {
observer->enqueueMutationRecord(mutation);
continue;
}
if (!mutationWithNullOldValue) {
if (mutation->oldValue().isNull())
mutationWithNullOldValue = mutation;
else
mutationWithNullOldValue = MutationRecord::createWithNullOldValue(mutation).get();
}
observer->enqueueMutationRecord(mutationWithNullOldValue);
}
}
void MutationObserverInterestGroup::enqueueMutationRecord(PassRefPtrWillBeRawPtr<MutationRecord> prpMutation)
{
RefPtrWillBeRawPtr<MutationRecord> mutation = prpMutation;
RefPtrWillBeRawPtr<MutationRecord> mutationWithNullOldValue = nullptr;
for (auto& iter : m_observers) {
MutationObserver* observer = iter.key;
if (hasOldValue(iter.value)) {
observer->enqueueMutationRecord(mutation);
continue;
}
if (!mutationWithNullOldValue) {
if (mutation->oldValue().isNull())
mutationWithNullOldValue = mutation;
else
mutationWithNullOldValue = MutationRecord::createWithNullOldValue(mutation).get();
}
observer->enqueueMutationRecord(mutationWithNullOldValue);
}
}