primefaces / primefaces/primereact

TabView Scrollable right button is still visible when end of scrollable view is reached

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Status: Needs Triage
Dominant language
CSS
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Description

Describe the bug

For scrollable tabs with enough tabs to display the scroll buttons, the right arrow button does not always disappear when the end of the scrollable tabs is reached.

Reproducer

https://stackblitz.com/edit/vitejs-vite-xsmnfjob

System Information
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    primereact: latest => 10.9.5 
    react: ^19.1.0 => 19.1.0
Steps to reproduce the behavior
  1. Create a scrollable TabPanel inside a container with margins that is itself inside a container of width 920px.
  2. Scroll to the end of the TabPanel tab scroll.
Expected behavior

TabPanel right scroll button should disappear once the end of the TabPanel scroll is reached (as it does at the beginning of the TabPanel for the left scroll button).

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the linked StackBlitz reproducer and inspect the TabView scroll-button behavior when the tab strip reaches its end inside the described container layout. Confirm that the right button remains visible, then verify that it disappears at the end while the left-button behavior at the beginning remains unchanged.

Written by the indexing model from the issue text.

Assessment

Tech stack
react
Domain
frontend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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