1327353 - Text in ruleview horribly twitches when I edit sourceMapped style

Status: NEW

(DevTools :: Inspector: Rules, defect, P2)

Description

[arni2033]

>>>   My Info:   Win7_64, Nightly 49, 32bit, ID 20160526082509
STR_1:
1. Open http://www.meetgraham.com.au/
2. Open devtools -> inspector -> rules, resize ruleview to make it ~410px wide (on dark theme)
3. Find the last set of rules with selector "body" defined in sourceMapped stylesheet
4. In that set of rules, click on the closing bracked "}" to start creating a new rule
5. Slowly type "background:lightgrey;"

AR:  All text in ruleview horribly twitches. Stylesheets locations briefly display another location
ER:  Text should stay still

Note:  devtools theme should be dark, because otherwise width of scrollbar interferes w/ Step 2

Comment 1

[Julian Descottes [:jdescottes]]

Indeed, this is pretty bad. Would be nice to have smaller test case to reproduce the issue.