bug(mat-tab): tabs are focusable even if they are disabled

[iKrishnaSahu]

Is this a regression?

• [X] Yes, this behavior used to work in the previous version

The previous version in which this bug was not present was

15.0.4

Description

bug(mat-tab): tabs are focusable even if they are disabled

Example - https://v15.material.angular.io/components/tabs/examples#tab-group-ink-bar

Also cdk-* classes are getting applied in disabled mode

v15.2.9 - https://stackblitz.com/edit/fpkg6a-vehkd7?file=package.json

v15.0.4 - https://stackblitz.com/edit/ippjv4?file=package.json

Reproduction

Steps to reproduce:

1. Go to https://stackblitz.com/edit/fpkg6a-vehkd7?file=src%2Findex.html
2. Try to navigate on mat-tab using keyboard as shown in attached GIF

Expected Behavior

Disabled item should not get focus

Actual Behavior

Disabled item is getting focus

Environment

• Angular: 15.2.8 (exists in 16 a well)
• CDK/Material: 15.2.8
• Browser(s): Chrome
• Operating System (e.g. Windows, macOS, Ubuntu): Windows

[crisbeto]

This is working as expected. Users need to be able to navigate to disabled tabs to know that they exist.

[angular-automatic-lock-bot[bot]]

This issue has been automatically locked due to inactivity. Please file a new issue if you are encountering a similar or related problem.

Read more about our automatic conversation locking policy.

_{This action has been performed automatically by a bot.}