[snap] Missing icon in indicator

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

Same issue, with additional icon for Google Hangouts as well.

Chris, thanks for the confirmation. I haven't been able to observe the issue myself, can you share details on what shows that appindicator when using the chromium deb?

Olivier,

My best guess is:
https://chromium.googlesource.com/chromium/src.git/+/master/chrome/browser/ui/libgtkui/app_indicator_icon.cc#298

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Logs from running chromium in snap that indicate this is likely a problem:
(chrome:29051): libappindicator-WARNING **: 14:11:04.701: Using '/tmp' paths in SNAP environment will lead to unreadable resources

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The (missing) icons in question are located for me at:
/tmp/snap.chromium/tmp/.org.chromium.Chromium.yzUwdr/chrome_app_indicator_1_1.png
/tmp/snap.chromium/tmp/.org.chromium.Chromium.d1gVzr/chrome_app_indicator_2_7.png

Is there an env variable we can set to change the location of tmp? I think in generally it shouldn't be attempting to use /tmp for anything.

Thanks Chris for those details.

AppIndicatorIcon::WriteUnityTempImageOnWorkerThread() calls base::CreateNewTempDirectory(), which calls GetTempDir() (in https://cs.chromium.org/chromium/src/base/files/file_util_posix.cc), which honours the TMPDIR environment variable.

So we need a way for chromium to share icons with the host's libappindicator. I'm pretty sure this has already been solved for other snaps, but I don't know how.

It looks like setting TMPDIR to $XDG_RUNTIME_DIR in snapcraft.yaml's environment section for the app should do the trick (thanks Trevinho for the hint!).

Tentative fix: https://git.launchpad.net/~chromium-team/chromium-browser/+git/snap-from-source/commit/?id=d5604a3dfd6f1f85c93a733219105ad14267128e.

I've confirmed the fix works, thanks!

And I've confirmed on my end that the fix works too. Installing the Google Hangouts extension enables the appindicator icon.

The fix introduced a nasty regression (bug #1838508) and had to be reverted.

@osomon Are there any ETA/plan to try to fix this again?

Not at the moment, I'm working on higher priority bugs and features.

I'm unassigning myself from the bug so that it's free for anyone to pick up.

Just asking if this is the problem I have:

I have Chromium as a favorite in my gnome panel on the left side. After some time the indication of the running Chromium windows disappears (like no Chromium is running at all - clicking the shortcut on the left just opens a new window). When pressing ALT+TAB all other Chromium windows are there. I have this behavior on multiple systems running Ubuntu 21.10 amd64.

Stefan, that's a different problem, can you please file a separate bug?