16 lines
535 B
TypeScript
16 lines
535 B
TypeScript
// #docregion
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import { Injectable } from '@angular/core';
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import { CanDeactivate } from '@angular/router';
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import { Observable } from 'rxjs/Observable';
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export interface CanComponentDeactivate {
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canDeactivate: () => boolean | Observable<boolean>;
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}
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@Injectable()
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export class CanDeactivateGuard implements CanDeactivate<CanComponentDeactivate> {
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canDeactivate(component: CanComponentDeactivate): Observable<boolean> | Promise<boolean> | boolean {
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return component.canDeactivate ? component.canDeactivate() : true;
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}
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}
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