/// <summary>
/// Checks if our "currently playing" and "fullscreen content" states still fit to the
/// appropriate players, i.e. if we are in a "currently playing" state and the current player context was
/// changed, the workflow state will be adapted to match the new current player context's "currently playing" state.
/// The same check will happen for the primary player context and the "fullscreen content" state.
/// </summary>
/// <remarks>
/// This method must not be called when the player manager's lock is held.
/// </remarks>
protected void CheckMediaWorkflowStates_NoLock()
{
ISystemStateService sss = ServiceRegistration.Get <ISystemStateService>();
if (sss.CurrentState != SystemState.Running)
{
// Only automatically change workflow states in running state
return;
}
IWorkflowManager workflowManager = ServiceRegistration.Get <IWorkflowManager>();
workflowManager.StartBatchUpdateAsync();
ILogger log = ServiceRegistration.Get <ILogger>();
IPlayerManager playerManager = ServiceRegistration.Get <IPlayerManager>();
try
{
for (int i = 0; i < _playerWfStateInstances.Count; i++)
{
// Find the first workflow state of our cached player workflow states which doesn't fit any more
// and update to the new player workflow state of the same player workflow state type, if necessary.
PlayerWFStateInstance wfStateInstance = _playerWfStateInstances[i];
Guid? newStateId;
string stateName;
switch (wfStateInstance.WFStateType)
{
case PlayerWFStateType.CurrentlyPlaying:
newStateId = GetPotentialCPStateId();
stateName = "Currently Playing";
break;
case PlayerWFStateType.FullscreenContent:
newStateId = GetPotentialFSCStateId();
stateName = "Fullscreen Content";
break;
default:
throw new NotImplementedException(string.Format("No handler for player workflow state type '{0}'",
wfStateInstance.WFStateType));
}
if (newStateId != wfStateInstance.WFStateId)
{
// Found the first player workflow state which doesn't fit any more
log.Debug("PlayerContextManager: {0} Workflow State '{1}' doesn't fit any more to the current situation. Leaving workflow state.",
stateName, wfStateInstance.WFStateId);
lock (playerManager.SyncObj)
// Remove all workflow states until the player workflow state which doesn't fit any more
_playerWfStateInstances.RemoveRange(i, _playerWfStateInstances.Count - i);
workflowManager.NavigatePopToStateAsync(wfStateInstance.WFStateId, true);
if (newStateId.HasValue)
{
log.Debug("PlayerContextManager: Auto-switching to new {0} Workflow State '{1}'",
stateName, newStateId.Value);
workflowManager.NavigatePushAsync(newStateId.Value);
}
break;
}
}
}
finally
{
workflowManager.EndBatchUpdateAsync();
}
}