The performance of the sticky elements (those who stay at their position on screen when scrolling) feels really bad. These elements include the edit link next to the label and the "in other languages" heading.
They often scroll over their bounds and then jump back or they just jump instead of smoothly scrolling.
| Subject | Repo | Branch | Lines +/- | |
|---|---|---|---|---|
| Replace statementgrouplabelscroll animation with CSS transition | mediawiki/extensions/Wikibase | master | +4 -16 |
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Resolved | Jdlrobson | T78430 [Epic] Getting Wikidata to render nicely on mobile web | |||
| Open | None | T158181 Aim for workflow equivalence for MediaWiki on desktop and mobile web | |||
| Open | None | T95878 [Story] Make Wikidata editable on mobile web | |||
| Open | None | T95649 Create and document a stable framework for extending the Wikibase UI | |||
| Stalled | None | T40968 Keyboard-navigability of the repo UI | |||
| Open | None | T54136 [Epic] Redesign Item UI for Wikidata repo | |||
| Resolved | thiemowmde | T103485 [Story] Performance of sticky elements feels bad |
The relevant file for the "sticky" property labels is jquery.wikibase.statementgrouplabelscroll.js. The word "stick" does not appear in this file. ;-)
There is an other mechanism called "sticknode" which is used for headlines and table headers. As far as I can see the bad performance is not in these "sticknode" elements but in the scrolling property label.
Change 279369 had a related patch set uploaded (by Jonas Kress (WMDE)):
Remove animation from statementgrouplabelscroll.js
Change 279369 merged by jenkins-bot:
Replace statementgrouplabelscroll animation with CSS transition