33 lines
1.1 KiB
TypeScript
33 lines
1.1 KiB
TypeScript
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// #docregion
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import { Injectable } from '@angular/core';
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import { CanDeactivate,
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ActivatedRouteSnapshot,
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RouterStateSnapshot } from '@angular/router';
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import { Observable } from 'rxjs/Observable';
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import { CrisisDetailComponent } from './crisis-center/crisis-detail.component';
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@Injectable()
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export class CanDeactivateGuard implements CanDeactivate<CrisisDetailComponent> {
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canDeactivate(
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component: CrisisDetailComponent,
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route: ActivatedRouteSnapshot,
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state: RouterStateSnapshot
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): Observable<boolean> | Promise<boolean> | boolean {
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// Get the Crisis Center ID
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console.log(route.params['id']);
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// Get the current URL
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console.log(state.url);
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// Allow synchronous navigation (`true`) if no crisis or the crisis is unchanged
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if (!component.crisis || component.crisis.name === component.editName) {
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return true;
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}
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// Otherwise ask the user with the dialog service and return its
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// promise which resolves to true or false when the user decides
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return component.dialogService.confirm('Discard changes?');
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}
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}
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