ionic-framework/angular/src/ionic-angular.ts

/*tslint:disable*/
import './ionic';
import { IonicWindow } from './types/interfaces';

const win = (window as IonicWindow);
const Ionic = win.Ionic;

if (Ionic) {
  Ionic.ael = function ngAddEventListener(elm, eventName, cb, opts) {
    if (elm.__zone_symbol__addEventListener) {
      elm.__zone_symbol__addEventListener(eventName, cb, opts);
    } else {
      elm.addEventListener(eventName, cb, opts);
    }
  };

  Ionic.rel = function ngRemoveEventListener(elm, eventName, cb, opts) {
    if (elm.__zone_symbol__removeEventListener) {
      elm.__zone_symbol__removeEventListener(eventName, cb, opts);
    } else {
      elm.removeEventListener(eventName, cb, opts);
    }
  };

  Ionic.raf = function ngRequestAnimationFrame(cb: any) {
    if (win.__zone_symbol__requestAnimationFrame) {
      win.__zone_symbol__requestAnimationFrame(cb);
    } else {
      win.requestAnimationFrame(cb);
    }
  };
}