fix DSpace#5494: enable rotate to show surrounding pages on navigation (DSpace#5505)

Author: guillermo-escire

src/app/core/pagination/pagination-component-options.model.ts

@@ -19,6 +19,12 @@ export class PaginationComponentOptions extends NgbPaginationConfig {
    */
   maxSize = 10;
 
+  /**
+   * Whether to rotate pages towards the current page.
+   * Ensures the active page is always visible in the pagination control.
+   */
+  rotate = true;
+
   /**
    * A number array that represents options for a context pagination limit.
    */

src/app/shared/pagination/pagination.component.spec.ts

@@ -317,6 +317,31 @@ describe('Pagination component', () => {
         expect(de.nativeElement.classList.contains('pagination-sm')).toBeTruthy();
       });
     });
+
+    it('should show surrounding pages when navigating to a later page', () => {
+      testComp.collectionSize = 200;
+      testComp.paginationOptions.maxSize = 5;
+      testFixture.detectChanges();
+
+      currentPagination.next(Object.assign(new PaginationComponentOptions(), pagination, { currentPage: 10 }));
+      testFixture.detectChanges();
+
+      const paginationDe = testFixture.debugElement.query(By.css('.pagination'));
+      const activePage = paginationDe.nativeElement.querySelector('li.active');
+      expect(activePage).toBeTruthy();
+      expect(activePage.textContent.trim()).toContain('10');
+
+      const allPages = paginationDe.nativeElement.querySelectorAll('li');
+      const pageNumbers = Array.from(allPages).map((li: any) =>
+        li.textContent.trim().replace(/\s+/g, ''),
+      ).filter(t => /^\d+$/.test(t));
+
+      expect(pageNumbers).toContain('8');
+      expect(pageNumbers).toContain('9');
+      expect(pageNumbers).toContain('10');
+      expect(pageNumbers).toContain('11');
+      expect(pageNumbers).toContain('12');
+    });
   });
 
   describe('when showPaginator is true', () => {