Widget is not always refreshed after window resizing

[Pavol Klačanský]

Hi, if you have some widget inside window (Grid, VBox,...) and you resize window, widget is not refreshed, but when you resize window again, widget gets proper size.

Observed in my project, also gwibber suffers with this bug.

I have attached video and source code

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: libgtk-3-0 3.4.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
ApportVersion: 2.0.1-0ubuntu5
Architecture: amd64
Date: Tue Apr 24 00:43:50 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=sk_SK.UTF-8
 SHELL=/bin/bash
SourcePackage: gtk+3.0
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Pavol Klačanský (pavolzetor-deactivatedaccount)]

so I have tested it on gnome shell, unity 2d and unity. This problem occurs only on unity. On the other side, on gnome shell and unity 2d, when you resize window slowly, your HDD is still active and performing something.

[Pavol Klačanský (pavolzetor-deactivatedaccount)]

maybe 'check-resize' signal should be raised when resizing ends

[Pavol Klačanský (pavolzetor-deactivatedaccount)]

also occurs in Metacity while maximizing window, resizing is okay

[Pavol Klačanský (pavolzetor-deactivatedaccount)]

Guys at Gtk+ explained it to me, allocation signal is emitted after drawing, so I used check-resize for window and then get current allocation

[Bilal Shahid (s9iper1)]

in gwibber it is the duplicate of this bug #882154 so marking it invalid for gwibber here.