[Bug 1874591] Re: [SRU] AptUrl GTK window stuck on screen after install completed

[Marcus Tomlinson]

** No longer affects: update-manager (Ubuntu Eoan)

** No longer affects: update-manager (Ubuntu Bionic)

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https://bugs.launchpad.net/bugs/1874591

Title:
  [SRU] AptUrl GTK window stuck on screen after install completed

Status in update-manager package in Ubuntu:
  Fix Released
Status in update-manager source package in Focal:
  In Progress

Bug description:
  [Impact]

  After installing a package from an AptURL, the apturl-gtk window
  remains stuck on screen in greyed out state. Clicking the close button
  does nothing.

  Screenshot is attached below.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: apturl 0.5.2ubuntu19
  ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
  Uname: Linux 5.4.0-26-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Apr 24 09:51:36 2020
  InstallationDate: Installed on 2020-04-22 (1 days ago)
  InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  SourcePackage: apturl
  UpgradeStatus: Upgraded to focal on 2020-04-23 (0 days ago)

  [Test Case]

  - Use an AptURL (like apt:chromium-browser)
  - apturl-gtk launches, and prompts for app installation
  - I click install and enter my credentials
  - A window pops up with the download and install progress
  - Installation for the package completes and the install progress window disappears
  - The apturl-gtk window is greyed out and stuck.

  [Regression Potential]

  The fix consists of a couple hasattr() safety checks (see linked
  branch). These ensure that snap updates occur only in the updater and
  not in other dialogs such as the apturl installer. I'd say regression
  potential is relatively low. There are only a couple of use cases
  effected here and I've tested them thoroughly.

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