Bug 69030 - Multiple instances of the Unity launcher icon for the same LO-App (e.g. writer) instead of grouping
Summary: Multiple instances of the Unity launcher icon for the same LO-App (e.g. write...
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: UI (show other bugs)
Version: 4.1.1.2 release
Hardware: x86-64 (AMD64) Linux (All)
: high normal
Assignee: Not Assigned
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Reported: 2013-09-06 12:14 UTC by Martin Wildam
Modified: 2013-10-12 09:40 UTC (History)
2 users (show)

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Unity Launcher bar with multiple instances of Writer (37.23 KB, image/png)
2013-09-06 12:14 UTC, Martin Wildam 		Details
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Description Martin Wildam 2013-09-06 12:14:27 UTC 
Created attachment 85325 [details]
Unity Launcher bar with multiple instances of Writer

When I start LibreOffice (no matter which of the sub-apps Writer, Calc etc) by double-clicking a .od*-File, I get one icon instance in the Unity launcher for each opened document. But in that case those should be grouped together instead of showing a second time the same icon (see screenshot). It further doesn't matter if LibreOffice Writer/... was already pinned/locked to the launcher before. If it was already pinned/locked to the launcher before then anyway a new instance of the icon is displayed.

I have two different computers with the same effect so I don't think of a misconfiguration of my local computer.

I also noticed that same Ubuntu-Version (12.04) on an older 32-bit laptop with older LibreOffice (having v3.5.7.2 there) works flawlessly. I cannot tell for sure when the issue started to occur, but I am pretty sure that with LO 4.0 I did not have the issue. The older laptop is 32-bit - can this make a difference here? I don't think so.

Some bug reports in Ubuntu tell about bamf package being the culprit, but I don't really think so because the older laptop has the same bamf version installed. See
https://bugs.launchpad.net/ubuntu/+source/bamf/+bug/1076018
https://bugs.launchpad.net/bamf/+bug/1077518
https://bugs.launchpad.net/bamf/+bug/1026426

I made further tests while writing this and noticed that when double-clicking *.docx documents for example the grouping works as it then groups all those icons together where a *.docx document is opened. Strangely all *.odt document windows remain as ungrouped separate instance.

I wonder what the difference is in window handling depending on the mimetype or file extension.
Comment 1 Martin Wildam 2013-09-06 12:25:25 UTC 
Not to mix up with
https://bugs.freedesktop.org/show_bug.cgi?id=46116
as of course LibreOffice Writer and Calc etc should not group alltogether.
Comment 2 Jean-Baptiste Faure 2013-09-14 06:22:14 UTC 
I reproduce the problem with LO 4.1.2.1, LO 4.1.3.0.0+ (build at home in release mode) and master.
No grouping for ODF files, grouping works for docx files.
There is something changed with 4.1 because it works as expected for me with LO 4.0.5 (generic Linux version).

Best regards. JBF
Comment 3 Marco Trevisan (Treviño) 2013-10-10 16:24:52 UTC 
The bug itself is only partially in LO... The new version includes the StartupWMClass strings to the .desktop file, and that's fine to improve matching but this leads to problems in unity since LO updates the window class values very slowly (after that it sets the new window title) and this confuses old BAMF versions.

A workaround for precise users using LO 4.1 is just removing this key from the .desktop files by using:

  sudo sed '/StartupWMClass=.*/d' -i /usr/share/applications/libreoffice-*.desktop

More at https://bugs.launchpad.net/bamf/+bug/1238122
Comment 4 Jean-Baptiste Faure 2013-10-12 09:40:48 UTC 
Thank you Marco for the workaround, but I have the same problem with the generic Linux version on Ubuntu 13.04 and this workaround does not work in this case.

Best regards. JBF

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