/// <summary>
/// Enqueues a notification. If a notification with the same Id exists,
/// replace the existing notification.
/// </summary>
/// <param name="toastNotification">The <see cref="ToastNotificationBase"/> to enqueue or update.</param>
public void Enqueue(ToastNotificationBase toastNotification)
{
// If the toastNotification is on screen, replace datacontext
if (CurrentNotification != null && CurrentNotification.Id == toastNotification.Id)
{
SwipeCurrentNotification(toastNotification);
return;
}
// else-if notification is on queue, replace existing instance
if (_notificationsQueue.Any(notification => notification.Id == toastNotification.Id && notification.Id != null))
{
InternalReplaceQueueItem(toastNotification);
}
else
{
// else add to queue
InternalAddToQueue(toastNotification);
}
if (CurrentNotification == null)
{
ShowNextNotification();
}
}
private void InternalAddToQueue(ToastNotificationBase toastNotification)
{
lock (_notificationQueueLock)
{
_notificationsQueue.Add(toastNotification);
}
}
private void SwipeCurrentNotification(ToastNotificationBase toastNotification)
{
lock (_notificationQueueLock)
{
CurrentNotification.AbortNotification();
CurrentNotification.CompleteToast(DismissStatus.Dismissed, notifyManager: false);
_notificationsQueue.Remove(CurrentNotification);
CurrentNotification = toastNotification;
CurrentNotification.Show(this);
}
}
/// <summary>
/// Removes a notification from the queue.
/// </summary>
/// <param name="toastNotification">The <see cref="ToastNotificationBase"/> to remove.</param>
public void Dequeue(ToastNotificationBase toastNotification)
{
if (CurrentNotification == toastNotification)
{
toastNotification.CompleteToast(DismissStatus.InternalDismissed);
}
lock (_notificationQueueLock)
{
_notificationsQueue.Remove(toastNotification);
}
}
private void ShowNextNotification()
{
lock (_notificationQueueLock)
{
CurrentNotification = _notificationsQueue.FirstOrDefault();
if (CurrentNotification == null)
{
return;
}
CurrentNotification.Show(this);
}
}
internal void RemoveNotificationFromVisualTree(ToastNotificationBase toastNotificationBase)
{
if (toastNotificationBase == null)
{
throw new ArgumentNullException("toastNotificationBase");
}
if (toastNotificationBase.ToastControlMainBorder == null)
{
throw new ArgumentNullException("toastNotificationBase", "ToastNotificationBase object must contain a ToastControlMainBorder");
}
RootGrid.Children.Remove(toastNotificationBase.ToastControlMainBorder);
}
private void InternalReplaceQueueItem(ToastNotificationBase toastNotification)
{
lock (_notificationQueueLock)
{
ToastNotificationBase actualNotification = _notificationsQueue.FirstOrDefault(notification => notification.Id == toastNotification.Id && notification.Id != null);
if (actualNotification == null)
{
throw new ArgumentNullException("actualNotification");
}
actualNotification.CompleteToast(dismissStatus: DismissStatus.InternalDismissed);
int actualNotificationIndex = _notificationsQueue.IndexOf(actualNotification);
_notificationsQueue.Remove(actualNotification);
_notificationsQueue.Insert(actualNotificationIndex, toastNotification);
}
}
public void CompleteToast(ToastNotificationBase toastNotificationBase)
{
CurrentNotification = null;
Dequeue(toastNotificationBase);
ShowNextNotification();
}