From 38da2587ebc666816a0047aa075ccbf530c11999 Mon Sep 17 00:00:00 2001
From: Volodymyr Pohrebniak <avatar145@ukr.net>
Date: Fri, 15 Nov 2019 22:33:36 +0100
Subject: [PATCH] fix(pagination): don't focus links of disabled pagination
 (#3468)

---
 src/pagination/pagination.spec.ts | 28 +++++++++++++++++++---------
 src/pagination/pagination.ts      | 12 ++++++------
 2 files changed, 25 insertions(+), 15 deletions(-)

diff --git a/src/pagination/pagination.spec.ts b/src/pagination/pagination.spec.ts
index 0ccee67132..fa37c295b8 100644
--- a/src/pagination/pagination.spec.ts
+++ b/src/pagination/pagination.spec.ts
@@ -630,17 +630,27 @@ describe('ngb-pagination', () => {
          expect(fixture.componentInstance.onPageChange).not.toHaveBeenCalled();
        }));
 
-    it('should set classes correctly for disabled state', fakeAsync(() => {
-         const html = `<ngb-pagination [collectionSize]="collectionSize" [pageSize]="pageSize" [maxSize]="maxSize"
+    it('should set classes correctly for disabled state', () => {
+      const html = `<ngb-pagination [collectionSize]="collectionSize" [pageSize]="pageSize" [maxSize]="maxSize"
          [disabled]=true></ngb-pagination>`;
-         const fixture = createTestComponent(html);
-         tick();
+      const fixture = createTestComponent(html);
 
-         const buttons = fixture.nativeElement.querySelectorAll('li');
-         for (let i = 0; i < buttons.length; i++) {
-           expect(buttons[i]).toHaveCssClass('disabled');
-         }
-       }));
+      const buttons = fixture.nativeElement.querySelectorAll('li');
+      for (let i = 0; i < buttons.length; i++) {
+        expect(buttons[i]).toHaveCssClass('disabled');
+      }
+    });
+
+    it('should set tabindex for links correctly for disabled state', () => {
+      const html = `<ngb-pagination [collectionSize]="collectionSize" [pageSize]="pageSize" [maxSize]="maxSize"
+      [disabled]=true></ngb-pagination>`;
+      const fixture = createTestComponent(html);
+
+      const buttonLinks = fixture.nativeElement.querySelectorAll('li a');
+      for (let i = 0; i < buttonLinks.length; i++) {
+        expect(buttonLinks[i].getAttribute('tabindex')).toEqual('-1');
+      }
+    });
   });
 
   describe('Customization', () => {
diff --git a/src/pagination/pagination.ts b/src/pagination/pagination.ts
index d16508fbea..374add03e4 100644
--- a/src/pagination/pagination.ts
+++ b/src/pagination/pagination.ts
@@ -132,7 +132,7 @@ export class NgbPaginationPrevious {
       <li *ngIf="boundaryLinks" class="page-item"
         [class.disabled]="previousDisabled()">
         <a aria-label="First" i18n-aria-label="@@ngb.pagination.first-aria" class="page-link" href
-          (click)="selectPage(1); $event.preventDefault()" [attr.tabindex]="(hasPrevious() ? null : '-1')">
+          (click)="selectPage(1); $event.preventDefault()" [attr.tabindex]="(hasPrevious() && !disabled ? null : '-1')">
           <ng-template [ngTemplateOutlet]="tplFirst?.templateRef || first"
                        [ngTemplateOutletContext]="{disabled: previousDisabled(), currentPage: page}"></ng-template>
         </a>
@@ -141,25 +141,25 @@ export class NgbPaginationPrevious {
       <li *ngIf="directionLinks" class="page-item"
         [class.disabled]="previousDisabled()">
         <a aria-label="Previous" i18n-aria-label="@@ngb.pagination.previous-aria" class="page-link" href
-          (click)="selectPage(page-1); $event.preventDefault()" [attr.tabindex]="(hasPrevious() ? null : '-1')">
+          (click)="selectPage(page-1); $event.preventDefault()" [attr.tabindex]="(hasPrevious() && !disabled ? null : '-1')">
           <ng-template [ngTemplateOutlet]="tplPrevious?.templateRef || previous"
                        [ngTemplateOutletContext]="{disabled: previousDisabled()}"></ng-template>
         </a>
       </li>
       <li *ngFor="let pageNumber of pages" class="page-item" [class.active]="pageNumber === page"
         [class.disabled]="isEllipsis(pageNumber) || disabled">
-        <a *ngIf="isEllipsis(pageNumber)" class="page-link">
+        <a *ngIf="isEllipsis(pageNumber)" class="page-link" [attr.tabindex]="(disabled ? '-1' : null)">
           <ng-template [ngTemplateOutlet]="tplEllipsis?.templateRef || ellipsis"
                        [ngTemplateOutletContext]="{disabled: true, currentPage: page}"></ng-template>
         </a>
-        <a *ngIf="!isEllipsis(pageNumber)" class="page-link" href (click)="selectPage(pageNumber); $event.preventDefault()">
+        <a *ngIf="!isEllipsis(pageNumber)" class="page-link" href (click)="selectPage(pageNumber); $event.preventDefault()" [attr.tabindex]="(disabled ? '-1' : null)">
           <ng-template [ngTemplateOutlet]="tplNumber?.templateRef || defaultNumber"
                        [ngTemplateOutletContext]="{disabled: disabled, $implicit: pageNumber, currentPage: page}"></ng-template>
         </a>
       </li>
       <li *ngIf="directionLinks" class="page-item" [class.disabled]="nextDisabled()">
         <a aria-label="Next" i18n-aria-label="@@ngb.pagination.next-aria" class="page-link" href
-          (click)="selectPage(page+1); $event.preventDefault()" [attr.tabindex]="(hasNext() ? null : '-1')">
+          (click)="selectPage(page+1); $event.preventDefault()" [attr.tabindex]="(hasNext() && !disabled ? null : '-1')">
           <ng-template [ngTemplateOutlet]="tplNext?.templateRef || next"
                        [ngTemplateOutletContext]="{disabled: nextDisabled(), currentPage: page}"></ng-template>
         </a>
@@ -167,7 +167,7 @@ export class NgbPaginationPrevious {
 
       <li *ngIf="boundaryLinks" class="page-item" [class.disabled]="nextDisabled()">
         <a aria-label="Last" i18n-aria-label="@@ngb.pagination.last-aria" class="page-link" href
-          (click)="selectPage(pageCount); $event.preventDefault()" [attr.tabindex]="(hasNext() ? null : '-1')">
+          (click)="selectPage(pageCount); $event.preventDefault()" [attr.tabindex]="(hasNext() && !disabled ? null : '-1')">
           <ng-template [ngTemplateOutlet]="tplLast?.templateRef || last"
                        [ngTemplateOutletContext]="{disabled: nextDisabled(), currentPage: page}"></ng-template>
         </a>