jsonp_mock.ts
/**
* @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
*/
export class MockScriptElement {
constructor(public ownerDocument: MockDocument) {}
listeners: {
load?: (event: Event) => void,
error?: (err: Error) => void,
} = {};
addEventListener(event: 'load'|'error', handler: Function): void {
this.listeners[event] = handler as any;
}
removeEventListener(event: 'load'|'error'): void {
delete this.listeners[event];
}
}
export class MockDocument {
// TODO(issue/24571): remove '!'.
mock!: MockScriptElement|null;
readonly body: any = this;
implementation = {
createHTMLDocument: () => new MockDocument(),
};
createElement(tag: 'script'): HTMLScriptElement {
return new MockScriptElement(this) as any as HTMLScriptElement;
}
appendChild(node: any): void {
this.mock = node;
}
removeNode(node: any): void {
if (this.mock === node) {
this.mock = null;
}
}
adoptNode(node: any) {
node.ownerDocument = this;
}
mockLoad(): void {
// Mimic behavior described by
// https://html.spec.whatwg.org/multipage/scripting.html#execute-the-script-block
if (this.mock!.ownerDocument === this) {
this.mock!.listeners.load!(null as any);
}
}
mockError(err: Error) {
// Mimic behavior described by
// https://html.spec.whatwg.org/multipage/scripting.html#execute-the-script-block
if (this.mock!.ownerDocument === this) {
this.mock!.listeners.error!(err);
}
}
}