/// <summary>
/// Starts the given Task when this Task ended successfully.
/// </summary>
/// <param name="followingTask">The task to start.</param>
/// <param name="target">The DispatcherBase to start the following task on.</param>
/// <returns>This task.</returns>
public static Task Then(this Task that, Task followingTask, DispatcherBase target)
{
that.WhenFailed(() =>
{
followingTask.Abort();
});
that.WhenSucceeded(() =>
{
if (target != null)
{
followingTask.Run(target);
}
else if (ThreadBase.CurrentThread is TaskWorker)
{
followingTask.Run(((TaskWorker)ThreadBase.CurrentThread).TaskDistributor);
}
else
{
followingTask.Run();
}
});
return(that);
}
/// <summary>
/// Invokes the given action with the set result of the task when the task succeeded.
/// </summary>
/// <param name="action">The action to perform.</param>
/// <param name="target">The DispatcherBase to perform the action on.</param>
/// <returns>This task.</returns>
public static Task <T> OnResult <T>(this Task <T> task, Action <T> action, DispatcherBase actionTarget)
{
return(task.WhenSucceeded <T>(t => action(t.Result), actionTarget));
}
/// <summary>
/// The given Action will be performed when the task succeeds.
/// </summary>
/// <param name="action">The action to perform.</param>
/// <returns>This task.</returns>
public static Task <T> WhenSucceeded <T>(this Task <T> task, Action <Task <T> > action)
{
return(task.WhenSucceeded <T>(action, null));
}
/// <summary>
/// Invokes the given action with the set result of the task when the task succeeded.
/// </summary>
/// <param name="action">The action to perform.</param>
/// <param name="target">The DispatcherBase to perform the action on.</param>
/// <returns>This task.</returns>
public static Task OnResult <T>(this Task task, Action <T> action, DispatcherBase target)
{
return(task.WhenSucceeded(t => action((T)t.RawResult), target));
}