mattermost-community/focalboard

Bug: Menu scrollbar interrups sub-menu

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#1,735 opened on Nov 2, 2021

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Description

Steps to reproduce the behavior

  1. Open a board that has cards with multiple properties
  2. Click on the column calculations
  3. Try to select an item in a sub-menu, moving the mouse slowly
  4. When the mouse enters the sidebar, the menu closes

Expected behavior

Able to easily select items in the sidebar

Screenshots

https://user-images.githubusercontent.com/46905241/139910324-989d4e63-5e18-45e5-8d6a-34c8db648121.mov

Edition and Platform

  • Edition: Mattermost plugin
  • Version: v0.10.0 RC1
  • Browser and OS: Safari 15.1

Additional context

Repros also with Personal Desktop on Mac.

Contributor guide

Tech stack
typescriptreact
Domain
frontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
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
understanding of React componentsCSS for scrollbarsmouse event handlingbasic debugging
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
80
Research direction
Investigate the menu and sub menu component files in the repository, likely found under webapp/src/components. The issue occurs when the mouse enters the scrollbar area of a menu, closing the sub menu. Look for event handlers related to mouseenter/mouseleave on menu items and the scrollbar. A possible fix is to allow the sub menu to stay open when hovering over the scrollbar. Check if there are any existing tests for menu behavior.