gistfile1.txt

  /** MUTLIPLE STATE MANAGERS **/

  activeStateManagers: null,

  getStateManager: function(stateManager) {
    return (typeof stateManager === 'string') ?
              this.get(stateManager+'StateManager') :
              stateManager;
  },

  activateStateManager: function(stateManager) {
    stateManager = this.getStateManager(stateManager);

    this.activeStateManagers.removeObject(stateManager);
    this.activeStateManagers.unshiftObject(stateManager);

    if (stateManager.didActivate) {
      stateManager.didActivate(this);
    }
  },

  deactivateStateManager: function(stateManager) {
    stateManager = this.getStateManager(stateManager);

    this.activeStateManagers.removeObject(stateManager);

    if (stateManager.didDeactivate) {
      stateManager.didDeactivate(this);
    }
  },

  send: function(event, context) {
    var target = this.activeStateManagers.find(function(manager) {
      return manager.hasEvent(event);
    });

    if (target) {
      if (this.enableLogging) {
        Ember.Logger.log("STATEMANAGER: Redirecting event '%@' to manager %@.".fmt(event, target));
      }
      return target.send.apply(target, arguments);
    } else {
      return this._super.apply(this, arguments);
    }
  },