internal void AddToFront(QueuedPlayableContext queuedPlayableContext)
{
lock (m_queuedPlayables)
{
m_queuedPlayables.Insert(0, queuedPlayableContext);
}
}
internal void Add(QueuedPlayableContext queuedPlayableContext)
{
lock (m_queuedPlayables)
{
m_queuedPlayables.Add(queuedPlayableContext);
}
}
internal void FinishedPlaying(QueuedPlayableContext ctxt)
{
lock (m_queuedPlayables)
{
if (ctxt == CurrentlyPlaying)
{
LastPlayFinish = DateTime.Now;
CurrentlyPlaying = null;
}
}
}
void PlayNextSequentialContent(PlayableContentQueue queue)
{
QueuedPlayableContext ctxt = null;
lock (queue.SyncRoot)
{
if (queue.CurrentlyPlaying != null)
{
return;
}
ctxt = queue.GetNext();
}
Action next = () =>
{
if (ctxt.OnClose != null)
{
ctxt.OnClose();
}
lock (queue.SyncRoot)
{
queue.FinishedPlaying(ctxt);
}
PlayNextSequentialContent(queue);
};
if (ctxt != null)
{
var playable = ctxt.Playable;
if (ctxt.OnPlay != null)
{
ctxt.OnPlay(ctxt.ActivationContext, playable, next);
}
else if (ctxt.OnClose != null)
{
next();
}
}
}
protected virtual void AddToQueue(PlayableContentQueue queue, ResourceActivationContext activationContext, PlayableContent playable, PlayContentDelegate onPlay, Action onClose)
{
lock (m_queues)
{
m_queues.Add(activationContext.InstanceId, queue);
}
switch (playable.Priority)
{
case PlayableContentPriority.High:
// Todo: actually want to be a bit more clever and *don't* move in front of
// other high priority ones.
queue.AddToFront(
new QueuedPlayableContext
{
ActivationContext = activationContext,
Playable = playable,
OnClose = onClose,
OnPlay = onPlay
});
PlayNextSequentialContent(queue);
break;
case PlayableContentPriority.Interrupt:
QueuedPlayableContext toStop = null;
lock (queue.SyncRoot)
{
toStop = queue.CurrentlyPlaying;
}
if (toStop != null)
{
StopPlaying(toStop.ActivationContext, toStop.Playable, true);
toStop.ActivationContext.Close();
}
queue.AddToFront(
new QueuedPlayableContext
{
ActivationContext = activationContext,
Playable = playable,
OnClose = onClose,
OnPlay = onPlay
});
PlayNextSequentialContent(queue);
break;
case PlayableContentPriority.Filler:
// Only if nothing has played on this queue for a while...
bool doPlay = false;
lock (queue.SyncRoot)
{
doPlay = queue.CurrentlyPlaying == null &&
(DateTime.Now - queue.LastPlayFinish).TotalSeconds >= MinFillerDelay;
}
if (doPlay)
{
queue.Add(
new QueuedPlayableContext
{
ActivationContext = activationContext,
Playable = playable,
OnClose = onClose,
OnPlay = onPlay
});
PlayNextSequentialContent(queue);
}
break;
case PlayableContentPriority.Normal:
default:
queue.Add(
new QueuedPlayableContext
{
ActivationContext = activationContext,
Playable = playable,
OnClose = onClose,
OnPlay = onPlay
});
PlayNextSequentialContent(queue);
break;
}
}