public static Task GetTask(UIElement adorner)
{
if (adorner == null)
{
throw new ArgumentNullException("adorner");
}
return(AdornerProperties.GetTask((DependencyObject)adorner));
}
private IEnumerable <Task> GetTaskRoute(Task sourceTask, DependencyObject sourceAdorner, DependencyObject targetAdorner)
{
if (this._focusedTask != null)
{
yield return(this._focusedTask);
}
else
{
Task task = sourceTask;
if (task != null)
{
yield return(task);
}
if (sourceAdorner != null)
{
task = AdornerProperties.GetTask(sourceAdorner);
if (task != null && task != sourceTask)
{
yield return(task);
}
}
if (targetAdorner != null && targetAdorner != sourceAdorner)
{
Task previousTask = task;
task = AdornerProperties.GetTask(targetAdorner);
if (task != null && task != previousTask && task != sourceTask)
{
yield return(task);
}
}
if (this._tasks != null)
{
foreach (Task task1 in this._tasks)
{
yield return(task1);
}
}
}
}
