angular-docs-cn/packages/zone.js/test/performance/requestAnimationFrame.js

/**
 * @license
 * Copyright Google Inc. 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.io/license
 */
(function(_global) {
var mark = _global['__zone_symbol__mark'];
var measure = _global['__zone_symbol__measure'];
var zone = _global['__zone_symbol__callbackZone'];
var testRunner = _global['__zone_symbol__testRunner'];
var raf = _global['requestAnimationFrame'];
var cancel = _global['cancelAnimationFrame'];
var nativeRaf = _global['__zone_symbol__requestAnimationFrame'];
var nativeCancel = _global['__zone_symbol__cancelAnimationFrame'];
var testTarget = {
  title: 'requestAnimationFrame',
  times: 10,
  before: function() {
    _global['__zone_symbol__callbackContext'].measureName = 'requestAnimationFrame_callback';
    _global['__zone_symbol__callbackContext'].type = 'macroTask';
    _global['__zone_symbol__callbackContext'].source = 'requestAnimationFrame';
  },
  apis: [
    {
      supportClear: true,
      method: 'requestAnimationFrame',
      nativeMethod: '__zone_symbol__requestAnimationFrame',
      clearMethod: 'cancelAnimationFrame',
      nativeClearMethod: '__zone_symbol__cancelAnimationFrame',
      run: function() {
        return raf(function() {});
      },
      runClear: function(timerId) {
        return cancel(timerId);
      },
      nativeRun: function() {
        return nativeRaf(function() {});
      },
      nativeRunClear: function(timerId) {
        return nativeCancel(timerId);
      }
    },
    {
      isCallback: true,
      supportClear: false,
      method: 'requestAnimationFrame_callback',
      nativeMethod: 'native_requestAnimationFrame_callback',
      run: function() {
        zone.run(function() {
          raf(function() {});
        });
      },
      nativeRun: function() {
        var func = function() {};
        nativeRaf(function() {
          mark('native_requestAnimationFrame_callback');
          func.apply(this, arguments);
          measure('native_requestAnimationFrame_callback', 'native_requestAnimationFrame_callback');
        });
      }
    }
  ],
};
return testRunner(testTarget);
}(typeof window === 'undefined' ? global : window));