palantir/blueprint

[Table] Feature Request: Add an onHover event handler to Cell

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#2,683 opened on Jul 12, 2018

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P2Package: tableType: feature requesthelp wanted

Description

It would be quite helpful to have an onHover event handler on EditableCell that takes a function that is passed a row and column. This allow would show additional custom elements (select, autocomplete and etc.).

Example: _add_on_hover

Contributor guide

Tech stack
typescriptreactcss
Domain
frontend
Issue type
feature
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.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
TypeScriptReactBlueprint Table component
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
55
Research direction
Investigate the existing EditableCell component in packages/table/src/cell/cell.tsx to understand current event handler props. Review the Table component API for consistency. Implement an onHover callback that provides row and column indices, following the pattern of other event handlers like onDoubleClick. Ensure compatibility with accessibility and touch events.