protected override async ValueTask <bool> TryInvokeAsync(ObservableCollectionItemsChangedArgs e)
{
if (consumer == null)
{
return(false);
}
if (!consumer.IsAlive())
{
return(true);
}
if (e.ObservableCollection.ElementType == typeof(Task))
{
foreach (var task in e.ItemsAdded.Cast <Task>())
{
_ = task.ContinueWith(t => {
consumer?.ForceUpdate();
});
}
return(true);
}
if (e.NewCount != e.OldCount || e.ItemsAdded.Any() || e.ItemsRemoved.Any())
{
await consumer.ForceUpdate();
return(true);
}
return(false);
}
public void NotifyCollectionItemsChanged(ObservableCollectionItemsChangedArgs args)
{
foreach (var subscriber in subscribers)
{
InvokeActionOrRemove(subscriber.Key, subscriber => subscriber.CollectionItemsChangedAsync(args));
}
}
private void OnCollectionItemsChanged(object sender, ObservableCollectionItemsChangedArgs e)
{
bool executed = transactionLock.TryExecuteWithWriteLock(() =>
{
Subscribers.NotifyCollectionItemsChanged(e);
});
if (!executed)
{
collectionChangedQueue.Enqueue(e);
return;
}
DequeueAll();
}
protected override async ValueTask <bool> TryInvokeAsync(ObservableCollectionItemsChangedArgs e)
{
if (!consumer.IsAlive())
{
return(true);
}
if (e.NewCount != e.OldCount || e.ItemsAdded.Any() || e.ItemsRemoved.Any())
{
await consumer.ForceUpdate();
return(true);
}
return(false);
}
protected async override ValueTask <bool> TryInvokeAsync(ObservableCollectionItemsChangedArgs e)
{
if (!initialized)
{
initialized = true;
if (reactable.RequiresInitialInvoke())
{
await InvokeInternalAsync(true);
return(true);
}
}
/*if (e.NewCount != e.OldCount || e.ItemsAdded.Any() || e.ItemsRemoved.Any())
* {
* InvokeInternal(false);
* return new ValueTask<bool>(true);
* }*/
return(false);
}
private void OnCollectionItemsChanged(object sender, ObservableCollectionItemsChangedArgs e)
{
Subscribers.NotifyCollectionItemsChanged(e);
}
