TYPO3 Core

I can confirm this. Is is IMO a must-fix for LTS since a lot of business customers use Internet Explorer.

TYPO3 (current 6.2 beta4) comes with old versions of Prototype (1.6.0.3) and Scriptaculous dragdrop.js (1.8.2).

I have debugged this in Scriptaculous drapdrop.js and found out, that the left-click does'nt seem to get recognised in initDrag: function(event). In Internet Explorer, Event.isLeftClick(event) returns false. The isLeftClick function is part of Prototype and in this case, Prototype uses an outdated way of analyzing mousebutton events. The current version of Prototype has been updated to support IE9+ mouse events - see: https://github.com/sstephenson/prototype/blob/1fb9728/src/dom/event.js#L138

I tried just to replace the TYPO3 Prototype 1.6.0.3 with the latest version 1.7.1.0 and the sorting seems to work again. In IE the dragged element disappears as soon as you start a drag-event, but this is another issue. As soon as you drop the dragged element, it is fine again and sorting works in IE.

I also updated both Prototype and Scriptaculous to the latest versons, but this breaks a lot of functions in TYPO3 backend.

At least the problem is identified now, but the question is how to fix it?

Does anybody know something about the upgrade policies for external JS libs in TYPO3 core? Should this bug be fixed in the current versions of Prototype/Scriptaculous that come with TYPO3 or should new versions of Prototype/Scripaculous be used and TYPO3 has to be updated to new functionality of Prototype/Scripaculous?

I did some research and upgraded scriptaculous to 1.9.0 and prototype to 1.7.1 and nothing yet seems to be broken. You should not upgrade the one without upgrading the other in my opinion, as scriptaculous depends on a certain prototype version.

I also updated both Prototype and Scriptaculous to the latest versons, but this breaks a lot of functions in TYPO3 backend

Can you elaborate on that, Torben? What exactly broke?

I currently cannot login with IE11, as I seem to be affected by the "Cookie detection" issue still (#53818) to evaluate how the sorting is doing in this browser.

The version jump is not that high, and also these latest versions of prototype and scriptaculous are pretty old already (2010) and seem to fix IE9 and later issues. So it might be worth to examine this possibility also.

See above linked review for updated libraries for potential side-effects. Thanks!

I can confirm that it works with IE 10 and FAL. I will test with extensions (e.g. Powermail) before verifying the changeset.

There is a report that the drag'n'drop component will fail from Chrome32 on

https://groups.google.com/forum/#!topic/prototype-scriptaculous/SpP4P92r-dk

Patch set 1 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/27164

Patch set 2 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/27164

Patch set 3 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/27164

Patch set 4 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/27164

Patch set 5 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/27164

Patch set 6 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/27164

Patch set 7 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/27164

Patch set 8 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/27164

Patch set 9 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/27164