All events from a gridPanel or any of its components, managed by a controller?

Hy,

1 .I am a configuring a property "tools" in a GridPanel to render some buttons and I am adding handlers for these buttons in the GridPanel but according to the MVC pattern, should I add these handlers in the controller for this GridPanel or not?

2. All the events from a GridPanel itself or any of its components, should they be managed by the controller? What are the recommended practices?

Thanks

All events from a gridPanel or any of its components, managed by a controller?