Making currentPath available to all controllers

controllers-application.js

import Ember from 'ember';

export default Ember.ObjectController.extend({

  currentPathDidChange: function() {
    this.set('path.content', this.get('currentPath'));
  }.observes('currentPath')

});

initializers-current-path.js

import CurrentPath from "../models/current-path";

export default {
  name: 'currentPath',
  after: 'store',
  initialize: function(container, application) {
    container.register('app:currentPath', CurrentPath, { singleton: true });

    container.typeInjection('controller', 'path', 'app:currentPath');
  }
};

models-current-path.js

import Ember from 'ember';

export default Ember.ObjectProxy.extend({});