angular-ui/ui-grid

Erratically jumping header during column moving, if there is pinned column

Open

#4,973 opened on Jan 15, 2016

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 (6 comments) (0 reactions) (1 assignee)JavaScript (5,395 stars) (2,496 forks)batch import
good first issueneeds: decision

Description

http://plnkr.co/edit/3CRat38d2TZxx5pWV4tS?p=preview

Steps to reproduce:

  1. Open the embedded view to get a larger display
  2. Move "Email" column forward

Result: While being dragged, the "Email" column header flows far away from the mouse pointer.

Expected: The flowing column header should appear right under the mouse pointer during dragging

Contributor guide

Tech stack
javascriptangular
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.
half day
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 CSS positioningKnowledge of Angular grid internalsFamiliarity with drag and drop behavior
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
The issue reports a bug where the column header jumps erratically during drag when pinned columns exist. Review the Plunker example to reproduce the behavior. The core drag logic is likely in the ui grid source code (e.g., uiGridColumnMoveService). Check comments for any hints from the assignee or maintainers. Since the issue is from 2016, verify if the bug still exists in the current version or if there is a fix already merged elsewhere.