[Bug 1594681] Re: Don't override IM variables

[Launchpad Bug Tracker]

** Branch linked: lp:~ubuntu-desktop/gnome-session/ubuntu

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https://bugs.launchpad.net/bugs/1594681

Title:
  Don't override IM variables

Status in gnome-session:
  Confirmed
Status in Ubuntu GNOME:
  New
Status in gnome-session package in Ubuntu:
  In Progress
Status in gnome-settings-daemon package in Ubuntu:
  Fix Released
Status in gnome-session source package in Xenial:
  In Progress
Status in gnome-settings-daemon source package in Xenial:
  In Progress

Bug description:
  [Impact]

  Currently these variable settings are hardcoded in gnome-session and
  gnome-settings-daemon:

  QT_IM_MODULE=ibus
  XMODIFIERS=@im=ibus

  That way the use of alternative IM frameworks, for instance fcitx, is
  prevented. The variables should only be set if they are empty, so the
  values set by im-config are honored.

  [Test Case]

  * Install Ubuntu GNOME
  * Install both the gnome-session and gnome-settings-daemon proposed updates
  * Install fcitx
  * Set fcitx as the input method:
    im-config -n fcitx
  * Relogin
  * Check the IM-related environment variables:
    env | grep -E '_IM|XMOD'

  After the proposed uploads of gnome-session and gnome-settings-daemon,
  those variables are consistently (unlike before) set to "fcitx".

  [Regression Potential]

  Low. im-config sets "ibus" by default in Ubuntu GNOME anyway. This
  change prevents an inconsistent input method configuration for users
  who have actively chosen some other IM framework.

  The gnome-settings-daemon change was included upstream in 3.19.3 and
  the gnome-session change was included upstream in 3.21.90.

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