008eaf3b7d
Close #41522 `zone.js` patches event listeners and run all event listeners together, if one event handler throws error, the listeners afterward may not be invoked. Reproduction: ``` export class AppComponent implements AfterViewInit { @ViewChild('btn') btn: ElementRef; title = 'event-error'; constructor(private ngZone: NgZone) {} ngAfterViewInit() { this.ngZone.runOutsideAngular(() => { this.btn.nativeElement.addEventListener('click', () => { throw new Error('test1'); }); this.btn.nativeElement.addEventListener('click', () => { console.log('add eventlistener click'); }); }); } } ``` Until now no Angular users report this issue becuase in the `ngZone`, all error will be caught and will not rethrow, so the event listeners afterward will still continue to execute, but if the event handlers are outside of `ngZone`, the error will break the execution. This commit catch all errors, and after all event listeners finished invocation, rethrow the errors in seperate `microTasks`, the reason I am using `microTask` here is to handle multiple errors case. PR Close #41562
27 lines
1.0 KiB
TypeScript
27 lines
1.0 KiB
TypeScript
/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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Zone.__load_patch('RTCPeerConnection', (global: any, Zone: ZoneType, api: _ZonePrivate) => {
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const RTCPeerConnection = global['RTCPeerConnection'];
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if (!RTCPeerConnection) {
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return;
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}
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const addSymbol = api.symbol('addEventListener');
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const removeSymbol = api.symbol('removeEventListener');
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RTCPeerConnection.prototype.addEventListener = RTCPeerConnection.prototype[addSymbol];
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RTCPeerConnection.prototype.removeEventListener = RTCPeerConnection.prototype[removeSymbol];
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// RTCPeerConnection extends EventTarget, so we must clear the symbol
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// to allow patch RTCPeerConnection.prototype.addEventListener again
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RTCPeerConnection.prototype[addSymbol] = null;
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RTCPeerConnection.prototype[removeSymbol] = null;
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api.patchEventTarget(global, api, [RTCPeerConnection.prototype], {useG: false});
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});
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