bpmn-io/bpmn-js

Alignment tools for labels don't work inside of participant/lane

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#2,371 建立於 2025年12月22日

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 (3 留言) (0 反應) (0 負責人)JavaScript (7,739 star) (1,249 fork)batch import
buggood first issuemodelingspring cleaning

描述

Describe the Bug

Alignment helpers (snap lines) for external labels show outside of participant, but not within participant / lane:

Image

Steps to Reproduce

  • Align external label with Gateway/Event outside of participant
    • See that label target is "peer" used for horizontal center alignment
  • Align external label with Gateway/Event inside of participant
    • See that label target is not accounted as "peer", and no assistance is given

Can be reproduced on demo.bpmn.io.

Expected Behavior

Same behavior, independent of the modeling context.

Environment

  • Browser: Chrome 148
  • OS: Any (Linux, Ubuntu 24)
  • Library version: v18.9.1 / demo.bpmn.io

貢獻者指南

技術棧
javascripthtmlcss
領域
frontend
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-3 hours
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
fresh
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
JavaScriptBPMN modeling concepts
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
65
研究方向
Focus on the alignment helper logic in the modeling module. Examine how external labels interact with the snap lines feature, particularly the selection of 'peer' targets. Compare behavior of labels inside participant/lane versus outside. Review comments on the issue for any additional insights or maintainer input.
Alignment tools for labels don't work inside of participant/lane · bpmn-io/bpmn-js#2371 | Good First Issue