private static async Task <T> ShowAsync <T>(Func <Task <T> > show, IDispatcherWrapper dispatcher)
{
lock (DialogState)
{
while (DialogState.Showing)
{
Monitor.Wait(DialogState);
}
DialogState.Showing = true;
}
// this next line creates a dependecy on the WindowService
dispatcher = dispatcher ?? WindowWrapperHelper.Current().Dispatcher;
dispatcher = dispatcher ?? throw new ArgumentNullException(nameof(dispatcher));
var result = await dispatcher.DispatchAsync(async() => await show());
lock (DialogState)
{
DialogState.Showing = false;
Monitor.PulseAll(DialogState);
}
return(result);
}
/// <summary>
/// Fires a notification that the collection has been reset and should be queried for the changes.
/// </summary>
/// <param name="notify">The dispatcher wrapper to used for thread access.</param>
public async void Reset(IDispatcherWrapper notify = null)
{
if (_suppressNotification > 0)
{
return;
}
if (notify == null)
{
OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
return;
}
await notify.DispatchAsync(() =>
{
OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
});
}
private static async Task <T> ShowAsync <T>(Func <Task <T> > show, IDispatcherWrapper dispatcher)
{
lock (DialogState)
{
while (DialogState.Showing)
{
Monitor.Wait(DialogState);
}
DialogState.Showing = true;
}
dispatcher = dispatcher ?? Locator.WindowWrapper.Current().Dispatcher;
var result = await dispatcher.DispatchAsync(async() => await show());
lock (DialogState)
{
DialogState.Showing = false;
Monitor.PulseAll(DialogState);
}
return(result);
}
private static async Task <T> ShowAsync <T>(Func <Task <T> > show, IDispatcherWrapper dispatcher)
{
lock (DialogState)
{
while (DialogState.Showing)
{
Monitor.Wait(DialogState);
}
DialogState.Showing = true;
}
dispatcher = dispatcher ?? throw new ArgumentNullException(nameof(dispatcher));
var result = await dispatcher.DispatchAsync(async() => await show());
lock (DialogState)
{
DialogState.Showing = false;
Monitor.PulseAll(DialogState);
}
return(result);
}