private void OnPlaybackTimerTick(object sender, EventArgs e)
{
DispatcherTimer timer = sender as DispatcherTimer;
timer.Stop(); // Stop the timer before command completes.
if (loadedCommands.Count <= 0) // There's nothing else for playback.
{
if (this.ExitAfterPlayback == false)
{
// The playback is done, but the command file indicates that
// Dynamo should not be shutdown after the playback, so here
// we simply invalidate the timer.
//
this.playbackTimer = null;
}
else
{
// The command file requires Dynamo be shutdown after all
// commands has been played back. If that's the case, we'll
// reconfigure the callback to a shutdown timer, and then
// change its interval to the duration specified earlier.
//
this.playbackTimer.Tick -= OnPlaybackTimerTick;
this.playbackTimer.Tick += OnShutdownTimerTick;
var interval = TimeSpan.FromMilliseconds(PauseAfterPlayback);
this.playbackTimer.Interval = interval;
this.playbackTimer.Start(); // Start shutdown timer.
}
return;
}
// Remove the first command from the loaded commands.
DynCmd.RecordableCommand nextCommand = loadedCommands[0];
loadedCommands.RemoveAt(0);
// Execute the command, this may take a while longer than the timer
// inverval (usually very short), that's why the timer was stopped
// before the command execution starts. After the command is done,
// the timer is then resumed for the next command in queue.
//
nextCommand.Execute(this.owningViewModel);
timer.Start();
}
private void OnPlaybackTimerTick(object sender, EventArgs e)
{
DispatcherTimer timer = sender as DispatcherTimer;
timer.Stop(); // Stop the timer before command completes.
if (loadedCommands.Count <= 0) // There's nothing else for playback.
{
if (this.ExitAfterPlayback == false)
{
// The playback is done, but the command file indicates that
// Dynamo should not be shutdown after the playback, so here
// we simply invalidate the timer.
//
this.playbackTimer = null;
ChangeStateInternal(State.Stopped);
}
else
{
// The command file requires Dynamo be shutdown after all
// commands has been played back. If that's the case, we'll
// reconfigure the callback to a shutdown timer, and then
// change its interval to the duration specified earlier.
//
this.playbackTimer.Tick -= OnPlaybackTimerTick;
this.playbackTimer.Tick += OnShutdownTimerTick;
var interval = TimeSpan.FromMilliseconds(PauseAfterPlayback);
this.playbackTimer.Interval = interval;
this.playbackTimer.Start(); // Start shutdown timer.
ChangeStateInternal(State.ShuttingDown);
}
return;
}
// Remove the first command from the loaded commands.
DynCmd.RecordableCommand nextCommand = loadedCommands[0];
loadedCommands.RemoveAt(0);
// Update the cached command references.
this.PreviousCommand = this.CurrentCommand;
this.CurrentCommand = nextCommand;
if (nextCommand is DynCmd.PausePlaybackCommand)
{
var command = nextCommand as DynCmd.PausePlaybackCommand;
PauseCommandPlayback(command.PauseDurationInMs);
return;
}
try
{
// Execute the command, this may take a while longer than the timer
// inverval (usually very short), that's why the timer was stopped
// before the command execution starts. After the command is done,
// the timer is then resumed for the next command in queue.
//
nextCommand.Execute(this.owningViewModel);
}
catch (Exception exception)
{
// An exception is thrown while playing back a command. Remove any
// pending commands and allow the "playbackTimer" to continue with
// its next tick. Proper shutdown sequence will be initialized
// when the "playbackTimer" tries to pick up the next command and
// realized that there is no more commands waiting.
//
loadedCommands.Clear();
this.PlaybackException = exception;
}
timer.Start();
}