palantir/blueprint

Blue artifact line displayed when selecting table cell in the first row and scrolling down

Open

#6799 opened on May 15, 2024

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Package: tableStatus: needs proposalType: bughelp wanted

Description

Environment

  • Package version(s): @blueprintjs/core: "^5.10.0" @blueprintjs/icons: "^5.8.0" @blueprintjs/select: "^5.1.2" @blueprintjs/table: "^5.1.2"

  • Operating System: Windows 10 Home Edition

  • Browser name and version: Google Chrome 124.0.6367.203

Code Sandbox

Reproducible on the blueprint sample page. https://blueprintjs.com/docs/#table

Steps to reproduce

  1. Select any table cell in the first row Screenshot_4
  2. Scroll down the table

Actual behavior

Blue artifact line is displayed below column header. Screenshot_3

Expected behavior

Blue line should not de displayed since selection is not visible.

Possible solution

None. Hovewer note artifact line is not displayed when selecting table cell in any other row except the first one.

Contributor guide

Tech stack
typescriptreacthtmlcss
Domain
frontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
None
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70
Research direction
Investigate the table component's selection overlay rendering in the source directory packages/table/src/. The blue artifact line appears below the column header when a cell in the first row is selected and the user scrolls. Check if the selection box is incorrectly positioned or not clipped when the selected cell scrolls out of view. Look at the TableViewport and selection related components for potential CSS or JavaScript issues.