void
Event::InitPresContextData(nsPresContext* aPresContext)
{
mPresContext = aPresContext;
// Get the explicit original target (if it's anonymous make it null)
{
nsCOMPtr<nsIContent> content = GetTargetFromFrame();
mExplicitOriginalTarget = content;
if (content && content->IsInAnonymousSubtree()) {
mExplicitOriginalTarget = nullptr;
}
}
}
nsDOMEvent::nsDOMEvent(nsPresContext* aPresContext, nsEvent* aEvent)
{
mPresContext = aPresContext;
mPrivateDataDuplicated = PR_FALSE;
if (aEvent) {
mEvent = aEvent;
mEventIsInternal = PR_FALSE;
}
else {
mEventIsInternal = PR_TRUE;
/*
A derived class might want to allocate its own type of aEvent
(derived from nsEvent). To do this, it should take care to pass
a non-NULL aEvent to this ctor, e.g.:
nsDOMFooEvent::nsDOMFooEvent(..., nsEvent* aEvent)
: nsDOMEvent(..., aEvent ? aEvent : new nsFooEvent())
Then, to override the mEventIsInternal assignments done by the
base ctor, it should do this in its own ctor:
nsDOMFooEvent::nsDOMFooEvent(..., nsEvent* aEvent)
...
{
...
if (aEvent) {
mEventIsInternal = PR_FALSE;
}
else {
mEventIsInternal = PR_TRUE;
}
...
}
*/
mEvent = new nsEvent(PR_FALSE, 0);
mEvent->time = PR_Now();
}
// Get the explicit original target (if it's anonymous make it null)
{
nsCOMPtr<nsIContent> content = GetTargetFromFrame();
mTmpRealOriginalTarget = do_QueryInterface(content);
mExplicitOriginalTarget = mTmpRealOriginalTarget;
if (content && content->IsInAnonymousSubtree()) {
mExplicitOriginalTarget = nsnull;
}
}
NS_ASSERTION(mEvent->message != NS_PAINT, "Trying to create a DOM paint event!");
}