Detect route transitions in EmberJS 1.0.0-pre.4

Question

I am trying to detect when a route transition occurs. I\'ve located this code snippet inside the latest version of Ember (v1.0.0-pre.4) that handles the transitions

Answer 1

UPDATED ANSWER

You can now simply bind an observer on the router's didTransition event:

App.Router.reopen({
  doSomethingOnUrlChange: function() {
    console.log(this.get('url'));
  }.on('didTransition')  
});

see working example: http://jsfiddle.net/Sly7/3THD7/

DEPRECATED ANSWER BELOW

In the snippet here, there is set(appController, 'currentPath', path); I think you can put an observer on this property.

I don't know exactly where you want to be notified, but it's possible to do it in the ApplicationController itself.

App.ApplicationController = Ember.Controller.extend({

  currentPathDidChange: function(){
    // the currentPath has changed;
  }.observes('currentPath');
});

See this working fiddle for example: http://jsfiddle.net/qKrwU/