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extjsevent-driven

Event driven programming in Ext JS

I'm working on an application where different widgets from different plugins would be loaded into a host, and they don't know of each other. So I want to use EDP and in one widget raise an event (for example, UserDeleted) and in another widget, subscribe to that event (the famous publisher/subscriber, or let's get more specific, observer pattern).

In jQuery I use trigger() and bind() methods to accomplish this. However, I'm not able to find anything equivalent in Ext JS. Am I missing something? Or is there any other pattern to create loosely coupled UI widgets in Ext JS?

Solution

  • If your widgets don't know about each other, you need to use the mediator pattern.

    And it seems that Ext.util.Observable is what you're looking for.