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Issue #2452 - Ensure DOM events aren't dispatched at unexpected time

Browse source 
https://bugzilla.mozilla.org/show_bug.cgi?id=1409985
https://bugzilla.mozilla.org/show_bug.cgi?id=1443746
This commit is contained in:
Martok 2024-01-14 21:51:47 +01:00 • committed by roytam1
commit d6dd1f8133
5 changed files with 53 additions and 6 deletions
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35
dom/media/webspeech/synth/nsSpeechTask.cpp
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@ -59,15 +59,30 @@ public:
switch (event) {
case MediaStreamGraphEvent::EVENT_FINISHED:
{
RefPtr<SynthStreamListener> self = this;
if (!mStarted) {
mStarted = true;
nsCOMPtr<nsIRunnable> startRunnable =
NewRunnableMethod(this, &SynthStreamListener::DoNotifyStarted);
nsCOMPtr<nsIRunnable> startRunnable = NS_NewRunnableFunction(
[self] {
// "start" event will be fired in DoNotifyStarted() which is
// not allowed in stable state, so we do it asynchronously in
// next run.
NS_DispatchToMainThread(NewRunnableMethod(
self,
&SynthStreamListener::DoNotifyStarted));
});
aGraph->DispatchToMainThreadAfterStreamStateUpdate(startRunnable.forget());
}
nsCOMPtr<nsIRunnable> endRunnable =
NewRunnableMethod(this, &SynthStreamListener::DoNotifyFinished);
nsCOMPtr<nsIRunnable> endRunnable = NS_NewRunnableFunction(
[self] {
// "end" event will be fired in DoNotifyFinished() which is
// not allowed in stable state, so we do it asynchronously in
// next run.
NS_DispatchToMainThread(NewRunnableMethod(
self,
&SynthStreamListener::DoNotifyFinished));
});
aGraph->DispatchToMainThreadAfterStreamStateUpdate(endRunnable.forget());
}
break;
@ -85,8 +100,16 @@ public:
{
if (aBlocked == MediaStreamListener::UNBLOCKED && !mStarted) {
mStarted = true;
nsCOMPtr<nsIRunnable> event =
NewRunnableMethod(this, &SynthStreamListener::DoNotifyStarted);
RefPtr<SynthStreamListener> self = this;
nsCOMPtr<nsIRunnable> event = NS_NewRunnableFunction(
[self] {
// "start" event will be fired in DoNotifyStarted() which is
// not allowed in stable state, so we do it asynchronously in
// next run.
NS_DispatchToMainThread(NewRunnableMethod(
self,
&SynthStreamListener::DoNotifyStarted));
});
aGraph->DispatchToMainThreadAfterStreamStateUpdate(event.forget());
}
}