[Bug]: On Setting viewport to 320*256 pixels, Keyboard focus is moving to the hidden controls. · storybookjs/storybook#26980

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a11y: zoomaccessibilitybughelp wantedsev:S4ui

描述

Describe the bug

Test Environment:

OS: Windows 11 Version 22H2 (OS Build 22621.2861)

To Reproduce

Repro Steps: 1.Open URL: AvatarList - Docs ⋅ Storybook (chromatic.com) 2.Story book page opens 3.Press 6-tab keys and focus will move to "Skip to Canavas" 4.Press enter key on "Skip to canvas" button and press tab key 5.Focus will move to "Skip to sidebar" and press enter key on it. 6.Now, Resize the browser to 200% and open the developer tool in another window 7.Set the view port to 320256 pixel for the page. 8.Verify whether on Setting viewport to 320256 pixels, Keyboard focus is moving to the hidden controls or not.

Expected Results On Setting viewport to 320*256 pixels, Keyboard focus should not move to hidden controls.

https://github.com/storybookjs/storybook/assets/93735775/11d6ad0b-ddc9-4c52-8e6c-5873afe7f0db

System

Actual Results: 
Issue: On Setting viewport to 320*256 pixels, Keyboard focus is moving to the hidden controls.
Observation: Keyboard focus is moving to hidden controls with multiple tab keys after 'Enter text' edit field.

Additional context

No response

貢獻者指南

技術棧: typescriptreacthtmlcss
領域: accessibilityfrontend
議題類型: bug
難度: 3
預計時間: 1-3 hours
活動狀態: active
清晰度: mostly clear
前置要求: React fundamentalsAccessibility (focus management)Storybook environment
新手友善度: 60
研究方向: Investigate the Storybook UI layout components, particularly the skip to canvas and skip to sidebar buttons. Review how focus management is implemented for these hidden controls when viewport size changes. Look at files in packages/core/src/components/layout or similar directories. Consider adding aria hidden or tabindex= 1 to hidden elements when viewport is at 320x256 pixels.