[wp-trac] [WordPress Trac] #35947: Customizer panel fails to fully expand leaving extra margin

[WordPress Trac]

#35947: Customizer panel fails to fully expand leaving extra margin
--------------------------+---------------------------
 Reporter:  tronoxas      |       Owner:  ryankienstra
     Type:  defect (bug)  |      Status:  assigned
 Priority:  normal        |   Milestone:  4.5
Component:  Customize     |     Version:  4.4.2
 Severity:  normal        |  Resolution:
 Keywords:  needs-patch   |     Focuses:
--------------------------+---------------------------

Comment (by delawski):

 '''Different approach proposal'''

 I have pushed my proposal for the fix to the issue. Instead of removing
 {{{_recalculateTopMargin()}}} which is risky in current sliding panels
 implementation and may cause new issues, I have delayed focus event on
 back button.

 While working on #34391, I've noticed that focusing on element during CSS
 transition may cause unexpected results, very similar to the one
 presented. In case of #34391 I have implemented full solution taking
 advantage of {{{transitionEnd}}} event listening. In case of this ticket,
 I have used simpler solution - {{{focus()}}} is delayed by 180 ms which is
 the time needed for the transition to end.

 I've tested the fix on Chrome/OS X, Firefox/OS X, Firefox/Windows 8.1,
 Firefox/Windows 7, IE11/Windows 7 (Twenty Sixteen in each case).

 ''As a side note: I was able to reproduce the original issue only in
 Firefox.''

 ----

 '''Please, use
 [https://core.trac.wordpress.org/attachment/ticket/35947/35947_clean.patch
 35947_clean.patch] patch as it doesn't contain initial commits and
 reverts.'''

--
Ticket URL: <https://core.trac.wordpress.org/ticket/35947#comment:8>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform