SortableJS/Sortable

SortableJS not working in CKEditor

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#1,562 opened on Jul 8, 2019

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help wanted

Description

Problem:

Hello, great plugin, but:

SortableJS does not work inside a CKEditor. :(

We have spent days trying to make it work, with no success. SorableJS simply does not work inside the CKEditor. We are using CKEditor 4. We have tried various approaches, including writing our own plugin for CKEditor that uses SortableJS, but nothing worked so far.

At the same time, jQuery UI works fine inside the CKEditor.

I am providing the JSFiddle example below, with SortableJS working outside the CKEditor, and not working inside, also with equivalent examples with jQuery UI that work.

JSBin/JSFiddle demonstrating the problem:

https://jsfiddle.net/BoldizArt/eqg30vd4/71/

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.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
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
basic knowledge of SortableJSunderstanding of CKEditor 4JavaScript debugging skillsfamiliarity with drag and drop events
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
25
Research direction
Reproduce the bug using the provided JSFiddle (https://jsfiddle.net/BoldizArt/eqg30vd4/71/) which demonstrates SortableJS not working inside CKEditor 4 while jQuery UI works. Investigate how CKEditor's contenteditable iframe or element isolates or intercepts drag events. Compare the event flow between SortableJS and jQuery UI in that context. Examine SortableJS's source code (especially the onStart and onEnd handlers) and its options related to contenteditable elements. Check existing issues and discussions in the SortableJS repository for similar CKEditor problems. Focus on understanding why SortableJS fails to initialize or respond to drag gestures within the CKEditor instance.