Merge pull request DSpace#3926 from Andrea-Guevara/AccessibilityInSearchFilterDspace7

[Port dspace-7_x] Accessibility when selecting a search filter

Author: tdonohue

src/app/shared/search/search-filters/search-filter/search-facet-filter-options/search-facet-option/search-facet-option.component.html

@@ -1,7 +1,8 @@
 <a *ngIf="isVisible | async" class="d-flex flex-row"
    [tabIndex]="-1"
    [routerLink]="[searchLink]"
-   [queryParams]="addQueryParams" queryParamsHandling="merge">
+   [queryParams]="addQueryParams" queryParamsHandling="merge"
+   (click)="announceFilter()">
   <label class="mb-0 d-flex w-100">
     <input type="checkbox" [checked]="false" class="my-1 align-self-stretch filter-checkbox"/>
     <span class="w-100 pl-1 break-facet">

src/app/shared/search/search-filters/search-filter/search-facet-filter-options/search-facet-option/search-facet-option.component.spec.ts

@@ -19,6 +19,7 @@ import { PaginationComponentOptions } from '../../../../../pagination/pagination
 import { PaginationService } from '../../../../../../core/pagination/pagination.service';
 import { PaginationServiceStub } from '../../../../../testing/pagination-service.stub';
 import { ShortNumberPipe } from '../../../../../utils/short-number.pipe';
+import { UUIDService } from '../../../../../../core/shared/uuid.service';
 
 describe('SearchFacetOptionComponent', () => {
   let comp: SearchFacetOptionComponent;
@@ -113,7 +114,8 @@ describe('SearchFacetOptionComponent', () => {
             }
             /* eslint-enable no-empty, @typescript-eslint/no-empty-function */
           }
-        }
+        },
+        { provide: UUIDService, useClass: UUIDService },
       ],
       schemas: [NO_ERRORS_SCHEMA]
     }).overrideComponent(SearchFacetOptionComponent, {

src/app/shared/search/search-filters/search-filter/search-facet-filter-options/search-facet-option/search-facet-option.component.ts

@@ -2,10 +2,12 @@ import { combineLatest as observableCombineLatest, Observable, Subscription } fr
 import { map } from 'rxjs/operators';
 import { Component, Input, OnDestroy, OnInit } from '@angular/core';
 import { Router } from '@angular/router';
+import { TranslateService } from '@ngx-translate/core';
 import { FacetValue } from '../../../../models/facet-value.model';
 import { SearchFilterConfig } from '../../../../models/search-filter-config.model';
 import { SearchService } from '../../../../../../core/shared/search/search.service';
 import { SearchFilterService } from '../../../../../../core/shared/search/search-filter.service';
+import { LiveRegionService } from '../../../../../../shared/live-region/live-region.service';
 import { SearchConfigurationService } from '../../../../../../core/shared/search/search-configuration.service';
 import { hasValue } from '../../../../../empty.util';
 import { currentPath } from '../../../../../utils/route.utils';
@@ -67,7 +69,9 @@ export class SearchFacetOptionComponent implements OnInit, OnDestroy {
               protected filterService: SearchFilterService,
               protected searchConfigService: SearchConfigurationService,
               protected router: Router,
-              protected paginationService: PaginationService
+              protected paginationService: PaginationService,
+              protected liveRegionService: LiveRegionService,
+              private translateService: TranslateService,
   ) {
   }
 
@@ -129,4 +133,12 @@ export class SearchFacetOptionComponent implements OnInit, OnDestroy {
       this.sub.unsubscribe();
     }
   }
+
+  /**
+   * Announces to the screen reader that the page will be reloaded, which filter has been selected
+   */
+  announceFilter() {
+    const message = this.translateService.instant('search-facet-option.update.announcement', { filter: this.filterValue.value });
+    this.liveRegionService.addMessage(message);
+  }
 }

src/assets/i18n/en.json5

@@ -5401,4 +5401,6 @@
   "register-page.registration.aria.label": "Enter your e-mail address",
 
   "forgot-email.form.aria.label": "Enter your e-mail address",
+
+  "search-facet-option.update.announcement": "The page will be reloaded. Filter {{ filter }} is selected.",
 }

src/assets/i18n/es.json5

@@ -7839,4 +7839,7 @@
 
   // "forgot-email.form.aria.label": "Enter your e-mail address",
   "forgot-email.form.aria.label": "Introduzca su dirección de correo electrónico",
+
+  // "search-facet-option.update.announcement": "The page will be reloaded. Filter {{ filter }} is selected.",
+  "search-facet-option.update.announcement": "La página será recargada. Filtro {{ filter }} seleccionado.",
 }

src/assets/i18n/pt-BR.json5

@@ -7866,4 +7866,7 @@
 
   // "forgot-email.form.aria.label": "Enter your e-mail address",
   "forgot-email.form.aria.label": "Digite seu e-mail",
+
+  // "search-facet-option.update.announcement": "The page will be reloaded. Filter {{ filter }} is selected.",
+  "search-facet-option.update.announcement": "A página será recarregada. O filtro {{ filter }} foi selecionado.",
 }