angular/packages/zone.js/test/performance/eventTarget.js

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.dev/license
 */
(function (_global) {
  var testRunner = _global['__zone_symbol__testRunner'];
  var mark = _global['__zone_symbol__mark'];
  var measure = _global['__zone_symbol__measure'];
  var zone = _global['__zone_symbol__callbackZone'];
  var button;
  var testTarget = {
    title: 'addEventListener',
    times: 10,
    before: function () {
      button = document.createElement('button');
      document.body.appendChild(button);
      _global['__zone_symbol__callbackContext'].measureName = 'addEventListener_callback';
      _global['__zone_symbol__callbackContext'].type = 'eventTask';
      _global['__zone_symbol__callbackContext'].source = 'addEventListener';
    },
    after: function () {
      document.body.removeChild(button);
      button = null;
    },
    apis: [
      {
        supportClear: true,
        method: 'addEventListener',
        nativeMethod: '__zone_symbol__addEventListener',
        clearMethod: 'removeEventListener',
        nativeClearMethod: '__zone_symbol__removeEventListener',
        run: function () {
          var listener = function () {};
          button.addEventListener('click', listener);
          return listener;
        },
        runClear: function (timerId) {
          return button.removeEventListener('click', timerId);
        },
        nativeRun: function () {
          var listener = function () {};
          button['__zone_symbol__addEventListener']('click', listener);
          return listener;
        },
        nativeRunClear: function (timerId) {
          return button['__zone_symbol__removeEventListener']('click', timerId);
        },
      },
      {
        isCallback: true,
        supportClear: false,
        method: 'addEventListener_callback',
        nativeMethod: 'native_addEventListener_callback',
        run: function () {
          var listener = function () {};
          zone.run(function () {
            button.addEventListener('click', listener);
          });
          var event = document.createEvent('Event');
          event.initEvent('click', true, true);
          button.dispatchEvent(event);
          button.removeEventListener('click', listener);
        },
        nativeRun: function () {
          var func = function () {};
          var listener = function () {
            mark('native_addEventListener_callback');
            func.apply(this, arguments);
            measure('native_addEventListener_callback', 'native_addEventListener_callback');
          };
          button['__zone_symbol__addEventListener']('click', listener);
          var event = document.createEvent('Event');
          event.initEvent('click', true, true);
          button.dispatchEvent(event);
          button['__zone_symbol__removeEventListener']('click', listener);
        },
      },
    ],
  };
  return testRunner(testTarget);
})(typeof window === 'undefined' ? global : window);