1238152 - Expanding and contracting sections on bugzilla is a shitshow

Status: NEW

(Core :: Graphics, defect, P3)

Description

[Josh Matthews [:jdm]]

https://cleopatra.io/#report=1d68e6601d174245e8b0cd91464a2216f65b9c3f

Comment 1

[Josh Matthews [:jdm]]

This is with the new bugzilla UI

Comment 2

[Sotaro Ikeda [:sotaro]]

jdm, how can we check the new bugzilla UI? Is it already enabled? Can you explain about concrete STR of "Expanding and contracting sections"? Thanks.

Comment 3

[Josh Matthews [:jdm]]

Bugzilla settings -> Preferences -> General Preferences -> "Use experimental user interface": On

Then click any of the collapsible separators like Status, Firefox Tracking Flags, etc. I will note that the performance is significantly better than it was when Jeff filed this using my bugzilla account after I complained about it.

Comment 4

[Daniel Holbert [:dholbert]]

Paint flashing reveals that the page is getting repainted, in its entirety, several times over during the expand/collapse animation. Something is really defeating our attempts to avoid unnecessary repaints.

(mattwoodrow suggested that maybe tables are involved -- because tables don't benefit from DLBI (DisplayList-Based Invalidation) -- but there don't seem to be any tables, from my poking around the page in inspector.)