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Bug 1054901 - Add AsyncPanZoomStarted/Stopped notifications to scroll observers. r=roc

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This commit is contained in:
peter chang
2014-08-22 04:32:00 -04:00
parent 97d025b9b7
commit 93d86c6002
4 changed files with 68 additions and 2 deletions
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30
docshell/base/nsDocShell.cpp
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@@ -2896,6 +2896,36 @@ nsDocShell::RemoveWeakScrollObserver(nsIScrollObserver* aObserver)
return mScrollObservers.RemoveElement(obs) ? NS_OK : NS_ERROR_FAILURE;
}
void
nsDocShell::NotifyAsyncPanZoomStarted()
{
nsTObserverArray<nsWeakPtr>::ForwardIterator iter(mScrollObservers);
while (iter.HasMore()) {
nsWeakPtr ref = iter.GetNext();
nsCOMPtr<nsIScrollObserver> obs = do_QueryReferent(ref);
if (obs) {
obs->AsyncPanZoomStarted();
} else {
mScrollObservers.RemoveElement(ref);
}
}
}
void
nsDocShell::NotifyAsyncPanZoomStopped()
{
nsTObserverArray<nsWeakPtr>::ForwardIterator iter(mScrollObservers);
while (iter.HasMore()) {
nsWeakPtr ref = iter.GetNext();
nsCOMPtr<nsIScrollObserver> obs = do_QueryReferent(ref);
if (obs) {
obs->AsyncPanZoomStopped();
} else {
mScrollObservers.RemoveElement(ref);
}
}
}
NS_IMETHODIMP
nsDocShell::NotifyScrollObservers()
{