private async void ObserveExplorerNavigation(int index)
{
if (_entities != null && index >= 0 && index < _entities.Count)
{
var entity = _entities[index];
if (entity.IsHeader)
{
// HACK: do not allow header selection
await Task.Delay(1);
SelectedEntityIndex = _prevIndex;
var segment = (Segment)entity;
SegmentSelected?.Invoke(this, segment);
}
else if (index != _prevIndex)
{
SelectedEntityIndex = index;
_prevIndex = index;
await Task.Delay(250);
var conversation = (Conversation)entity;
_navigator.Go(new Topic(conversation.Chat));
}
}
}
/// <summary>
/// custom implementaton - raise the <see cref="SegmentSelected"/> event.
/// </summary>
/// <param name="sender"></param>
/// <param name="args"></param>
public virtual void OnSegmentSelected(object sender, SegmentSelectedEventArgs args)
{
SegmentSelected?.Invoke(sender, args);
}