App.PinController = Ember.Controller.extend({
   actions: {
      actionThatComponentCalls: function(){
         // different component will be called
         new App.MyOtherComponent().send('differentAction'):
      }
   }
});

App.FullScreenMapComponent = Ember.Component.extend({
   click: function(){
     this.sendAction();
   }
});

App.MyOtherComponent = Ember.Component.extend({
   actions: {
     differentAction: function(){
       console.log('different action called');
     }
   }
});