45 lines
1.1 KiB
TypeScript
45 lines
1.1 KiB
TypeScript
// #docregion
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import {Component, Input, OnDestroy} from 'angular2/core';
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import {MissionService} from './mission.service';
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import {Subscription} from 'rxjs/Subscription';
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@Component({
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selector: 'my-astronaut',
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template: `
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<p>
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{{astronaut}}: <strong>{{mission}}</strong>
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<button
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(click)="confirm()"
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[disabled]="!announced || confirmed">
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Confirm
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</button>
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</p>
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`
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})
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export class AstronautComponent implements OnDestroy{
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@Input() astronaut: string;
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mission = "<no mission announced>";
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confirmed = false;
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announced = false;
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subscription:Subscription;
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constructor(private missionService: MissionService) {
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this.subscription = missionService.missionAnnounced$.subscribe(
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mission => {
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this.mission = mission;
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this.announced = true;
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this.confirmed = false;
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})
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}
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confirm() {
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this.confirmed = true;
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this.missionService.confirmMission(this.astronaut);
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}
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ngOnDestroy(){
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// prevent memory leak when component destroyed
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this.subscription.unsubscribe();
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}
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}
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// #enddocregion
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