/**
* If the current item in the event target chain has an event listener
* manager, this method calls nsEventListenerManager::HandleEvent().
*/
void HandleEvent(nsEventChainPostVisitor& aVisitor,
ELMCreationDetector& aCd)
{
if (WantsWillHandleEvent()) {
mTarget->WillHandleEvent(aVisitor);
}
if (aVisitor.mEvent->mFlags.mPropagationStopped) {
return;
}
if (!mManager) {
if (!MayHaveListenerManager() && !aCd.MayHaveNewListenerManager()) {
return;
}
mManager = mTarget->GetExistingListenerManager();
}
if (mManager) {
NS_ASSERTION(aVisitor.mEvent->currentTarget == nullptr,
"CurrentTarget should be null!");
mManager->HandleEvent(aVisitor.mPresContext, aVisitor.mEvent,
&aVisitor.mDOMEvent,
CurrentTarget(),
&aVisitor.mEventStatus);
NS_ASSERTION(aVisitor.mEvent->currentTarget == nullptr,
"CurrentTarget should be null!");
}
}
/**
* If the current item in the event target chain has an event listener
* manager, this method calls nsEventListenerManager::HandleEvent().
*/
nsresult HandleEvent(nsEventChainPostVisitor& aVisitor,
ELMCreationDetector& aCd,
nsCxPusher* aPusher)
{
if (WantsWillHandleEvent()) {
mTarget->WillHandleEvent(aVisitor);
}
if (aVisitor.mEvent->mFlags.mPropagationStopped) {
return NS_OK;
}
if (!mManager) {
if (!MayHaveListenerManager() && !aCd.MayHaveNewListenerManager()) {
return NS_OK;
}
mManager =
static_cast<nsEventListenerManager*>(mTarget->GetListenerManager(false));
}
if (mManager) {
NS_ASSERTION(aVisitor.mEvent->currentTarget == nullptr,
"CurrentTarget should be null!");
mManager->HandleEvent(aVisitor.mPresContext, aVisitor.mEvent,
&aVisitor.mDOMEvent,
CurrentTarget(),
&aVisitor.mEventStatus,
aPusher);
NS_ASSERTION(aVisitor.mEvent->currentTarget == nullptr,
"CurrentTarget should be null!");
}
return NS_OK;
}
