ExtJS中的控制器职责是什么？ Ext.window.Window实例中的事件？

Question

Currently using ExtJS 4 and I am trying to use the controller for implementing all events but there are some events that i am handling in the Window itself which are the close and destroy events. I need to execute some code here.

Is this bad practice ? If the events happen in the Window (an instance of Ext.window.Window).

Should I but forwarding these events to the controller to handle ?

I am unsure the correct way of doing this but I presume I would have to get a reference to the controller from my "window" in it's event and then call fireEvent on the controller?

What is the best practice here?

I am using ExtJS 4.2 so cannot use MVVM.

ExtJS seems to let me implement the events directly in "Components" but following the MVC pattern, is this not bad practice and everything should really pass through the controller.

Answer 1

The controller or viewport should handle the event. You don't need a reference to the controller inside the window.

If you want custom events, you need to fire the event from inside the window like:

this.fireEvent("myCustomEvent"[,elementThatTriggeredTheEvent]);

Then you then need to listen to the event inside the controller using a reference to the window:

yourWindow.on("myCustomEvent",this.myCustomEventHandler[,scope]);

There are also ways to listen to events without having a reference to the event triggering element.

Edit- Regarding your comment:

If you need to do stuff on afterlayout regarding elements inside the window, then i would do it inside the window. If you want to do stuff to elements that are not defined inside the window, then let the controller, that instantiated the elements, handle it. In ExtJS 5 there is something called a ViewController. I don't know if it's already in 4.2. You could utilize the ViewController to split the stuff that happens in your window. Here is a link on that:

https://www.sencha.com/blog/using-viewcontrollers-in-ext-js-5/

EDIT 2:

If you don't want custom events, just listen with the controller to the events the window already throws on important occasions.