bpmn-io/bpmn-js

Label double moves on batch movement

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#1,766 opened on Nov 10, 2022

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 (2 comments) (0 reactions) (0 assignees)JavaScript (7,739 stars) (1,249 forks)batch import
backlogbuggood first issuemodelingspring cleaning

Description

Describe the Bug

If I move a label along with another element that connects to the label target the label moves twice, causing quirky behavior:

capture LMEmCl_optimized

Steps to Reproduce

  1. Open label-double-move.bpmn.txt on https://demo.bpmn.io/
  2. Select ASD label + choose reciepe task
  3. Move both
  4. See label move twice

Expected Behavior

Two options:

  • Move label with connection
  • Move label with task

Not sure which one is better. Do not move twice.

Environment

  • Browser: Any
  • OS: Any
  • Library version: 8.x, 9.x, 10.x (tested)

Contributor guide

Tech stack
javascript
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
Familiarity with bpmn jsBasic knowledge of drag and drop eventsAbility to run the demo locally
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50
Research direction
Investigate the label movement logic in the codebase, likely in the MoveModule or LabelUtil. Implement a fix that ensures the label moves only once, either with the connection or with the task. Review the issue comments for maintainer feedback on the preferred behavior.
Label double moves on batch movement · bpmn-io/bpmn-js#1766 | Good First Issue