mirror of
https://github.com/angular/angular
synced 2026-05-24 09:28:37 +00:00
31 lines
825 B
TypeScript
31 lines
825 B
TypeScript
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import { Component, OnInit, OnDestroy, Input } from '@angular/core';
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import { MessageBus, Events } from 'protocol';
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import { interval } from 'rxjs';
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@Component({
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selector: 'ng-devtools',
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templateUrl: './devtools.component.html',
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styleUrls: ['./devtools.component.css'],
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})
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export class DevToolsComponent implements OnInit, OnDestroy {
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angularExists: boolean | null = null;
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@Input() messageBus: MessageBus<Events>;
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private _interval$ = interval(500).subscribe(() => this.messageBus.emit('queryNgAvailability'));
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ngOnInit() {
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console.log('Initialized the devtools UI');
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this.messageBus.once('ngAvailability', ({ version }) => {
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if (version) {
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this.angularExists = true;
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}
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this._interval$.unsubscribe();
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});
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}
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ngOnDestroy() {
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this._interval$.unsubscribe();
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}
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}
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