Listener best practice

[jgadbois]

Is it generally considered best practice to add listeners for UI interaction (button presses/list item taps/etc) within a controller or within the views themselves?

[mitchellsimoens]

Kind of depends. The logic needs to be in the controller so you can put the listeners and logic in the controller. The only reason why I would say you can listen for it in a view (minus not using MVC) is to fire a custom event. I have created a container which has many children but I don't want the controller to have too intiment knowledge of how a view is structured so I have the container listen for events on it's children and then fire a custom event on itself. Then if I ever have to change the layout on that container, I only have to change the view not find where that logic is implemented in any controller.

[jgadbois]

That makes sense. So your controller would still listen for your custom event, but the view would handle capturing the component event and translating it to your custom event, correct?

[mitchellsimoens]

Yes, correct. Basically turning that container into a fully fledged widget that can handle itself apart from an application.