From what I was able to research the jQuery.UI sortable does not work on touch devices and one needs to "patch" it with http://touchpunch.furf.com/ to make it work.

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#3 2864436-touch-devices-2.patch5.73 KBbucefal91
#2 2864436-touch-devices-2.patch0 bytesbucefal91

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bucefal91 created an issue. See original summary.

bucefal91’s picture

bucefal91 commented
Status: Active » Needs review
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new 2864436-touch-devices-2.patch0 bytes

I attach a patch that adds this touch-punch.js.

bucefal91’s picture

bucefal91 commented
StatusFileSize
new 2864436-touch-devices-2.patch5.73 KB

The patch didn't get uploaded for some reason.

sergei_brill’s picture

sergei_brill commented
Status: Needs review » Closed (won't fix)

I'm not sure we have to include the library into this module. There are many modules which uses jQuery UI plugins. If every such module will include the script into itself we can get unexpected behavior if at least 2 modules will include the touch punch script to the same page. Also, it is not guaranteed that the script fixes issues with touch screens. So, I think site admins should be able to control usage of the script. It can be done by including the script via custom module or theme.
Actually, there's a module which brings touch punch into drupal https://www.drupal.org/project/jquery_touchpunch . If we help them to release D8 version it will solve issues with jQuery UI plugins for all D8 modules (or most of them).