codex-team/editor.js

[Bug] Cross block selection selected state gets wrong when pointer moves out edit area

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#2,167 opened on Nov 16, 2022

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buggood first issueimportant

Description

Description Cross block selection selected state gets wrong when pointer moves out edit area and go back then.

Steps to reproduce:

  1. start a cross block selection session, and select some block from bottom to top.
  2. move the pointer out of the edit area.
  3. move the pointer back into the edit area some where below the selection start point. There will be a selected block floating above the other selected blocks. Also, select blocks from top to bottom at step 1 and move pointer into some where above the start point at step 3, will reproduce the bug

Expected behavior:

Screenshots:

Device, Browser, OS: Chrome 107 on macOs

Editor.js version: 2.25.0

Plugins you use with their versions:

Contributor guide

Tech stack
typescript
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.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
Understanding of DOM event handlingFamiliarity with Editor.js block selection
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45
Research direction
Investigate the selection logic in Editor.js, particularly how cross block selection states are updated when the pointer leaves and re enters the edit area. Look at files like 'src/components/selection.ts' or similar modules that handle selection. Reproduce the bug and trace the event handlers for pointer events. Focus on the code that manages the selected block list during pointer movement.