button hover flicker on files tab

[Panaetius]

these buttons flicker when entering the hover from the top. best reproducible when entering with the mouse from the top middle.

tested on the #2854 deployment on firefox

[leafty]

I believe this behaviour is due to the tooltip.

[Panaetius]

yes the tooltip itself should have the hover behavior as well to keep it open when hovered

[leafty]

Some technical detail here: the tooltips should be placed right outside their reference element (as is the case in Bootstrap docs) but in renku-ui they are placed slightly inside. This cause the flickering issue as the tooltip itself "grabs the hover" which makes it disappear thus creating the flicker cycle.

We shall see if updating and/or adjusting some bootstrap variables revert the behaviour back to normal or if we should set an offset (which will be painful to do).

[lorenzo-cavazzi]

The unified file browser will soon disappear in Renku 2.0. Since this bug only marginally affects the usability, I suggest closing this issue.
Feel free to open a new one if you think there are still reasons to consider a similar functionality.

[leafty]

This is a big on almost all tooltips though, so should be kept open.

[lorenzo-cavazzi]

@leafty If this problem affects any 2.0 page, we should make an issue listing exactly where this should be fixed and possibly add a new rule in the coding guidelines from your comment #2926 (comment) if that's what's causing this flickering.
If that only affects 1.0 pages, it doesn't strike me as an important bugfix but, if you think otherwise, please feel free to re-open the issue and assign it to yourself