palantir/blueprint

Blueprint table scrolling problem when using keyboard

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#3,835 建立於 2019年11月11日

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 (0 留言) (0 反應) (0 負責人)TypeScript (20,263 star) (2,167 fork)batch import
P2Package: tableType: bughelp wanted

描述

Environment

  • Package version(s): Blueprint table 3.8.1
  • Browser and OS versions: Chrome

If possible, link to a minimal repro (fork this code sandbox): https://codesandbox.io/s/blueprint-sandbox-jt7py

Steps to reproduce

  1. Create blueprint table with enough columns so there is a horizontal scrollbar
  2. Move the selection to the last column using the keyboard (shift or arrow keys)
  3. Move the selection back to the first column also using the keyboard

Actual behavior

The scrollbar does not go back all the way - as you can see in the linked repo for example, when you scroll back to the start, the 'A' of the column name is cut off and you can't scroll further without using the mouse.

Expected behavior

Scrollbar should return to original position without having to use the mouse - this is an accessibility issue.

貢獻者指南

技術棧
typescriptreact
領域
frontendaccessibility
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
half day
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
React basicsTypeScript basicsBlueprint Table component
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
50
研究方向
Investigate the keyboard scroll behavior in the Blueprint Table component. Look at the source code in packages/table/src for scroll handling, particularly functions that adjust scroll position when selecting cells via keyboard. Check for any existing tests related to keyboard navigation. The sandbox provided (https://codesandbox.io/s/blueprint sandbox jt7py) can be used to reproduce. Consider adding or fixing logic to ensure horizontal scroll returns to origin when keyboard selection moves left.