dialog popped up by release upgrader can be accidentally dismissed too easily

[Jonathan Kamens]

I was working doing other things on my computer while the upgrade to Xenial was running. At some point, the upgrade popped up a big squarish dialog; I'm not sure what it said in it exactly, but I saw that it was a grey frame enclosing a scrolling white textbox, and that the word "obsolete" was displayed prominently somewhere in it.

Unfortunately, it popped up and grabbed focus just as I was hitting Enter in the other program I was working in, and as a result, the dialog was dismissed accidentally by me a fraction of a second after it popped up, before I could read what was in it.

The release upgrader should use one of the strategies that other apps of this sort use to prevent this kind of thing from happening: either (a) don't allow the "OK" button in this dialog to be clicked for a few seconds after it pops up, or (b) don't focus on the "OK" button in this dialog by default, i.e., make the user tab to it or click on it to dismiss it.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-release-upgrader-gtk 1:16.04.14
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Thu Apr 28 08:32:21 2016
InstallationDate: Installed on 2016-01-16 (103 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to xenial on 2016-04-28 (0 days ago)
VarLogDistupgradeTermlog: