SortableJS/Sortable

Can not drag on IE with touch screen

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#432 opened on Jun 16, 2015

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help wanted

Description

When using a win8 laptop with a touch screen (I imagine it is the same case with a win8 tablet), the library can not initiate the drag and drop on IE. It works perfectly in chrome, In Firefox it works when you drag horizontally but if you drag vertically it scrolls the page. In IE it does not work at all.

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.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
IE touch event handlingPointer Events API
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20
Research direction
Investigate IE's touch event handling on Windows 8 touch screens. Compare with Chrome and Firefox behavior. Check if Sortable uses TouchEvents or PointerEvents. Look at the drag start logic in Sortable.js, specifically the onTouchStart or similar handlers. Consider adding PointerEvent support for IE10+.