1327688 - Box model doesn't update when element dimensions change on ":hover"

Status: NEW

(DevTools :: Inspector, defect, P2)

Description

[arni2033]

>>>   My Info:   Win7_64, Nightly 49, 32bit, ID 20160526082509
STR_1:
1. Open url   data:text/html,<img src="about:logo"><style>img:hover{transform: scale(1.1);}
2. Open devtools -> inspector -> box model
3. Right-click <img> element in markup, click ":hover"

AR:  Box model reports width == 300px
ER:  Box model should report width == 330px

Note:
 I think that many tools including sidebar in inspector shouldn't update unless user clicks some
 button to refresh styles/fonts/whatever or sets pref/checkbox to always update automatically.
 But so far the developers' plan is to always display the actual data, so this bug seems valid.

Comment 1

[Patrick Brosset <:pbro>]

Note that if you select another element and then select the the img again, the box-model shows the right width/height. So it's a matter of forcing an update of the box-model view when layout changes.