private async Task ShowAsync(Snackbar snackbar, SnackbarMessageQueueItem messageQueueItem, ManualResetEvent actionClickWaitHandle)
{
snackbar.Visibility = Visibility.Visible;
snackbar.SetCurrentValue(Snackbar.IsActiveProperty, false);
//create and show the message, setting up all the handles we need to wait on
var mouseNotOverManagedWaitHandle = CreateAndShowMessage(snackbar, messageQueueItem, actionClickWaitHandle);
var durationPassedWaitHandle = new ManualResetEvent(false);
StartDuration(messageQueueItem.Duration.Add(snackbar.ActivateStoryboardDuration), durationPassedWaitHandle);
//wait until time span completed (including pauses and mouse overs), or the action is clicked
await WaitForCompletionAsync(mouseNotOverManagedWaitHandle, durationPassedWaitHandle, actionClickWaitHandle);
//close message on snackbar
snackbar.SetCurrentValue(Snackbar.IsActiveProperty, false);
//we could wait for the animation event, but just doing
//this for now...at least it is prevent extra call back hell
await Task.Delay(snackbar.DeactivateStoryboardDuration);
//remove message on snackbar
snackbar.SetCurrentValue(Snackbar.MessageProperty, null);
mouseNotOverManagedWaitHandle.Dispose();
durationPassedWaitHandle.Dispose();
}
private async Task ShowAsync(Snackbar snackbar, SnackbarMessageQueueItem messageQueueItem, ManualResetEvent actionClickWaitHandle)
{
//create and show the message, setting up all the handles we need to wait on
var tuple = CreateAndShowMessage(snackbar, messageQueueItem, actionClickWaitHandle);
var snackbarMessage = tuple.Item1;
var mouseNotOverManagedWaitHandle = tuple.Item2;
var durationPassedWaitHandle = new ManualResetEvent(false);
StartDuration(messageQueueItem.Duration.Add(snackbar.ActivateStoryboardDuration), durationPassedWaitHandle);
//wait until time span completed (including pauses and mouse overs), or the action is clicked
await WaitForCompletionAsync(mouseNotOverManagedWaitHandle, durationPassedWaitHandle, actionClickWaitHandle);
//close message on snackbar
snackbar.SetCurrentValue(Snackbar.IsActiveProperty, false);
//we could wait for the animation event, but just doing
//this for now...at least it is prevent extra call back hell
await Task.Delay(snackbar.DeactivateStoryboardDuration);
//this prevents missing resource warnings after the message is removed from the Snackbar
//see https://github.com/MaterialDesignInXAML/MaterialDesignInXamlToolkit/issues/2040
snackbarMessage.Resources = SnackbarMessage.defaultResources;
//remove message on snackbar
snackbar.SetCurrentValue(Snackbar.MessageProperty, null);
mouseNotOverManagedWaitHandle.Dispose();
durationPassedWaitHandle.Dispose();
}
private async Task ShowAsync(Snackbar snackbar, SnackbarMessageQueueItem messageQueueItem)
{
await Task.Run(async() =>
{
//create and show the message, setting up all the handles we need to wait on
var actionClickWaitHandle = new ManualResetEvent(false);
var mouseNotOverManagedWaitHandle =
await
snackbar.Dispatcher.InvokeAsync(
() => CreateAndShowMessage(snackbar, messageQueueItem, actionClickWaitHandle));
var durationPassedWaitHandle = new ManualResetEvent(false);
DurationMonitor.Start(messageQueueItem.Duration.Add(snackbar.ActivateStoryboardDuration),
_pausedEvent, durationPassedWaitHandle, _disposedEvent);
//wait until time span completed (including pauses and mouse overs), or the action is clicked
await WaitForCompletionAsync(mouseNotOverManagedWaitHandle, durationPassedWaitHandle, actionClickWaitHandle);
//close message on snackbar
await
snackbar.Dispatcher.InvokeAsync(
() => snackbar.SetCurrentValue(Snackbar.IsActiveProperty, false));
//we could wait for the animation event, but just doing
//this for now...at least it is prevent extra call back hell
_disposedEvent.WaitOne(snackbar.DeactivateStoryboardDuration);
//remove message on snackbar
await snackbar.Dispatcher.InvokeAsync(
() => snackbar.SetCurrentValue(Snackbar.MessageProperty, null));
mouseNotOverManagedWaitHandle.Dispose();
durationPassedWaitHandle.Dispose();
})
.ContinueWith(t =>
{
if (t.Exception == null)
{
return;
}
var exc = t.Exception.InnerExceptions.FirstOrDefault() ?? t.Exception;
Trace.WriteLine("Error occured whilst showing Snackbar, exception will be rethrown.");
Trace.WriteLine($"{exc.Message} ({exc.GetType().FullName})");
Trace.WriteLine(exc.StackTrace);
throw t.Exception;
});
}