[CST-19328] added lang attribute to metadata-link-view component

Author: Andrea Barbasso

src/app/shared/metadata-link-view/metadata-link-view.component.html

@@ -1,4 +1,4 @@
-<div  class="d-inline-block" *ngVar="(metadataView$ | async) as metadataView">
+<div  class="d-inline-block" *ngVar="(metadataView$ | async) as metadataView" [attr.lang]="normalizedLanguageCode">
   @if (metadataView) {
     <ng-container [ngTemplateOutlet]="metadataView?.authority ? linkToAuthority : (metadataView?.entityType ? textWithIcon : textWithoutIcon)"
     [ngTemplateOutletContext]="{metadataView: metadataView}"></ng-container>

src/app/shared/metadata-link-view/metadata-link-view.component.ts

@@ -34,6 +34,7 @@ import { MetadataValue } from '../../core/shared/metadata.models';
 import { Metadata } from '../../core/shared/metadata.utils';
 import { getFirstCompletedRemoteData } from '../../core/shared/operators';
 import { EntityIconDirective } from '../entity-icon/entity-icon.directive';
+import { normalizeLanguageCode } from '../utils/normalize-language-code-utils';
 import { VarDirective } from '../utils/var.directive';
 import { MetadataLinkViewPopoverComponent } from './metadata-link-view-popover/metadata-link-view-popover.component';
 import { MetadataView } from './metadata-view.model';
@@ -106,6 +107,11 @@ export class MetadataLinkViewComponent implements OnInit {
    */
   relatedDsoRoute: string;
 
+  /**
+   * Normalized language code to use as lang attribute, if the metadata value has a language specified
+   */
+  normalizedLanguageCode: string;
+
   /**
    * Map all entities with the icons specified in the environment configuration file
    */
@@ -119,6 +125,7 @@ export class MetadataLinkViewComponent implements OnInit {
       switchMap((metadataValue: MetadataValue) => this.getMetadataView(metadataValue)),
       take(1),
     );
+    this.normalizedLanguageCode = normalizeLanguageCode(this.metadata?.language) || undefined;
   }