mirror of
https://github.com/angular/angular
synced 2026-05-24 09:28:37 +00:00
24 lines
788 B
TypeScript
24 lines
788 B
TypeScript
/**
|
|
* @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
|
|
*/
|
|
|
|
import {ZoneType} from '../zone-impl';
|
|
|
|
export function patchCanvas(Zone: ZoneType): void {
|
|
Zone.__load_patch('canvas', (global: any, Zone: ZoneType, api: _ZonePrivate) => {
|
|
const HTMLCanvasElement = global['HTMLCanvasElement'];
|
|
if (
|
|
typeof HTMLCanvasElement !== 'undefined' &&
|
|
HTMLCanvasElement.prototype &&
|
|
HTMLCanvasElement.prototype.toBlob
|
|
) {
|
|
api.patchMacroTask(HTMLCanvasElement.prototype, 'toBlob', (self: any, args: any[]) => {
|
|
return {name: 'HTMLCanvasElement.toBlob', target: self, cbIdx: 0, args: args};
|
|
});
|
|
}
|
|
});
|
|
}
|