Function patchCordova

packages/zone.js/lib/extra/cordova.ts:11–50

(Zone: ZoneType)

import {ZoneType} from '../zone-impl';

export function patchCordova(Zone: ZoneType): void {
  Zone.__load_patch('cordova', (global: any, Zone: ZoneType, api: _ZonePrivate) => {
    if (global.cordova) {
      const SUCCESS_SOURCE = 'cordova.exec.success';
      const ERROR_SOURCE = 'cordova.exec.error';
      const FUNCTION = 'function';
      const nativeExec: Function | null = api.patchMethod(
        global.cordova,
        'exec',
        () =>
          function (self: any, args: any[]) {
            if (args.length > 0 && typeof args[0] === FUNCTION) {
              args[0] = Zone.current.wrap(args[0], SUCCESS_SOURCE);
            }
            if (args.length > 1 && typeof args[1] === FUNCTION) {
              args[1] = Zone.current.wrap(args[1], ERROR_SOURCE);
            }
            return nativeExec!.apply(self, args);
          },
      );
    }
  });

  Zone.__load_patch('cordova.FileReader', (global: any, Zone: ZoneType) => {
    if (global.cordova && typeof global['FileReader'] !== 'undefined') {
      document.addEventListener('deviceReady', () => {
        const FileReader = global['FileReader'];
        ['abort', 'error', 'load', 'loadstart', 'loadend', 'progress'].forEach((prop) => {
          const eventNameSymbol = Zone.__symbol__('ON_PROPERTY' + prop);
          Object.defineProperty(FileReader.prototype, eventNameSymbol, {
            configurable: true,
            get: function () {
              return this._realReader && this._realReader[eventNameSymbol];
            },
          });
        });
      });
    }
  });
}