code: function () {
              this.screenOrientation = Aria.$window.orientation;
              this.isPortrait = this.__isPortrait();
              // raise event "change" to notify about orientation change along with properties for current orientation
              this.$raiseEvent({
                  name : "change",
                  screenOrientation : this.screenOrientation,
                  isPortrait : this.isPortrait
              });
          }
docs: Callback executed after orientation of the device is changed. This raises a wrapper event for the native
  event orientationchange and provides properties screenOrientation which is exact value of window.orientation
  and additional variable isPortrait to tell if device orientation is portrait
  @protected