54 lines
1.6 KiB
TypeScript
54 lines
1.6 KiB
TypeScript
import { Directive, Input, TemplateRef, ViewContainerRef, OnDestroy } from '@angular/core';
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import { Subject } from 'rxjs';
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import { takeUntil } from 'rxjs/operators';
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import { AccountService } from 'app/core/auth/account.service';
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/**
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* @whatItDoes Conditionally includes an HTML element if current user has any
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* of the authorities passed as the `expression`.
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*
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* @howToUse
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* ```
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* <some-element *jhiHasAnyAuthority="'ROLE_ADMIN'">...</some-element>
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*
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* <some-element *jhiHasAnyAuthority="['ROLE_ADMIN', 'ROLE_USER']">...</some-element>
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* ```
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*/
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@Directive({
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selector: '[jhiHasAnyAuthority]',
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})
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export class HasAnyAuthorityDirective implements OnDestroy {
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private authorities!: string | string[];
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private readonly destroy$ = new Subject<void>();
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constructor(private accountService: AccountService, private templateRef: TemplateRef<any>, private viewContainerRef: ViewContainerRef) {}
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@Input()
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set jhiHasAnyAuthority(value: string | string[]) {
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this.authorities = value;
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this.updateView();
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// Get notified each time authentication state changes.
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this.accountService
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.getAuthenticationState()
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.pipe(takeUntil(this.destroy$))
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.subscribe(() => {
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this.updateView();
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});
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}
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ngOnDestroy(): void {
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this.destroy$.next();
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this.destroy$.complete();
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}
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private updateView(): void {
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const hasAnyAuthority = this.accountService.hasAnyAuthority(this.authorities);
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this.viewContainerRef.clear();
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if (hasAnyAuthority) {
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this.viewContainerRef.createEmbeddedView(this.templateRef);
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}
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}
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}
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