HRESULT WebNotificationCenter::addObserver(_In_opt_ IWebNotificationObserver* observer, _In_ BSTR notificationName, _In_opt_ IUnknown* anObject)
{
String name(notificationName, SysStringLen(notificationName));
MappedObservers::iterator it = d->m_mappedObservers.find(name);
if (it != d->m_mappedObservers.end())
it->value.append(ObjectObserverPair(anObject, observer));
else {
ObjectObserverList list;
list.append(ObjectObserverPair(anObject, observer));
d->m_mappedObservers.add(name, list);
}
return S_OK;
}
HRESULT STDMETHODCALLTYPE WebNotificationCenter::addObserver(
/* [in] */ IWebNotificationObserver* observer,
/* [in] */ BSTR notificationName,
/* [in] */ IUnknown* anObject)
{
String name(notificationName, SysStringLen(notificationName));
MappedObservers::iterator it = d->m_mappedObservers.find(name);
if (it != d->m_mappedObservers.end())
it->second.append(ObjectObserverPair(anObject, observer));
else {
ObjectObserverList list;
list.append(ObjectObserverPair(anObject, observer));
d->m_mappedObservers.add(name, list);
}
return S_OK;
}
void WebNotificationCenter::postNotificationInternal(IWebNotification* notification, BSTR notificationName, IUnknown* anObject)
{
String name(notificationName, SysStringLen(notificationName));
MappedObservers::iterator it = d->m_mappedObservers.find(name);
if (it == d->m_mappedObservers.end())
return;
// Intentionally make a copy of the list to avoid the possibility of errors
// from a mutation of the list in the onNotify callback.
ObjectObserverList list = it->second;
ObserverListIterator end = list.end();
for (ObserverListIterator it2 = list.begin(); it2 != end; ++it2) {
IUnknown* observedObject = it2->first.get();
IWebNotificationObserver* observer = it2->second.get();
if (!observedObject || !anObject || observedObject == anObject)
observer->onNotify(notification);
}
}