angular-cn/packages/zone.js/test/browser_shadydom_setup.ts

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/**
* @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.io/license
*/
function initAddEventListeners() {
const HTMLSlotElement = (window as any).HTMLSlotElement;
const prototypes = [
Object.getPrototypeOf(window), Node.prototype, Text.prototype, Element.prototype,
Object.getPrototypeOf(window), HTMLElement.prototype,
HTMLSlotElement && HTMLSlotElement.prototype, DocumentFragment.prototype, Document.prototype
];
prototypes.forEach(proto => {
proto.addEventListener = function(eventName: string, callback: any) {
this.callback = callback;
};
proto.dispatchEvent = function(event: any) {
this.callback && this.callback.call(this, event);
};
});
}
initAddEventListeners();