palantir/blueprint

Table Whites Out With Mouse Scroll Greater Than 3 Rows

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#4,780 opened on Jun 24, 2021

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 (5 comments) (1 reaction) (0 assignees)TypeScript (20,263 stars) (2,167 forks)batch import
P2Package: tableType: bughelp wanted

Description

Environment

Try out on the blueprint table feature docs page..

Code Sandbox

https://blueprintjs.com/docs/#table/features

Steps to reproduce

Set mouse scroll (windows) to greater than 3 lines. Scroll the table.

Actual behavior

When scrolling up the first two rows sometimes don't get displayed/updated.

grafik

Expected behavior

Every row always gets displayed.

Possible solution

Only seen that with blueprint table so I assume the problem is located there.

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.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
ReactTypeScriptDebugging browser scroll events
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
Investigate the table component's scroll handling logic, particularly the virtualization mechanism. Check if the issue is related to incorrect clipping or missing update events when scrolling more than 3 lines. Look into the Table component's scrolling implementation in the Blueprint repository, focusing on files like `table/src/table.tsx` and related scroll event handlers.