void OnCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
Action action;
if (_list == null)
{
action = Clear;
}
else
{
action = () =>
{
_version++;
OnCollectionChanged(e);
};
}
CollectionSynchronizationContext sync;
if (BindingBase.TryGetSynchronizedCollection(ProxiedEnumerable, out sync))
{
sync.Callback(ProxiedEnumerable, sync.Context, () =>
{
e = e.WithCount(Count);
_dispatcher.DispatchIfRequired(action);
}, false);
}
else
{
e = e.WithCount(Count);
_dispatcher.DispatchIfRequired(action);
}
}
void OnPropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (!string.IsNullOrEmpty(e.PropertyName) && string.CompareOrdinal(e.PropertyName, PropertyName) != 0)
{
return;
}
IDispatcher dispatcher = (sender as BindableObject)?.Dispatcher;
dispatcher.DispatchIfRequired(() => _binding.Apply(false));
}
static void DoAction(IAnimatable self, Action action)
{
IDispatcher dispatcher = null;
if (self is BindableObject element)
{
dispatcher = element.Dispatcher;
}
// a null dispatcher is OK as we will find one in Dispatch
dispatcher.DispatchIfRequired(action);
}
void InternalCollectionChanged(object sender, NotifyCollectionChangedEventArgs args)
{
if (args.Action == NotifyCollectionChangedAction.Reset)
{
var items = new List <object>();
for (int n = 0; n < _internalCollection.Count; n++)
{
items.Add(_internalCollection[n]);
}
args = new ResetNotifyCollectionChangedEventArgs(items);
}
_dispatcher.DispatchIfRequired(() => HandleCollectionChange(args));
}