This is not a launcher or Unity bug. And it's still relevant for the latest Ubuntu version (13.04). Take a look at the *.desktop file of jEdit (it's a text editor written in Java and ships in Ubuntu's universal repository).
First of all: create a copy of jedit.desktop and modify all the relevant entries. Most of them are relevant. :-) Now the problematic entry is StartupWMClass. If you don't set up this correctly, Unity won't be able to "identify" the process/window that is launched by the executable specified by the "Exec" entry. You can start up SQuirreL and use xprop to get the correct value. I'll help you: it's "net-sourceforge-squirrel_sql-client-Main" So a proper squirrel.desktop file looks like this: [Desktop Entry] Name=SQuirreL GenericName=SQuirreL SQL Client Comment=Browse/edit SQL databases Exec=/opt/SQuirreLSQLClient/squirrel-sql.sh %U Icon=/opt/SQuirreLSQLClient/icons/acorn.png Terminal=false Type=Application Categories=Development; StartupNotify=true MimeType=text/x-sql; StartupWMClass=net-sourceforge-squirrel_sql-client-Main Keywords=Programming;Java;SQL (Of course assuming that SquirreL is install in /opt/SQuirreLSQLClient) -- You received this bug notification because you are a member of DX Packages, which is subscribed to unity in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/878113 Title: Custom launcher for SQuirreL starts new process on every click Status in BAMF Application Matching Framework: Expired Status in Unity: Expired Status in “bamf” package in Ubuntu: Expired Status in “unity” package in Ubuntu: Expired Bug description: I've managed to create a custom launcher for Squirrel (the widely-used SQL client, not the mail client), but whenever I click on it, it launches a new process. When I have already started Squirrel, clicking on the launcher should show the running instance, not start a new one. Also, as the running program is not visible in the desktop wall, I cannot actually resume using the running program, or even stop it (apart from killing the process). Also, I would like to modify the launcher myself, but it is not in ~/.local/share/applications which is where I expected it to be. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: unity 4.22.0-0ubuntu3 ProcVersionSignature: Ubuntu 3.0.0-12.20-generic-pae 3.0.4 Uname: Linux 3.0.0-12-generic-pae i686 NonfreeKernelModules: nvidia .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86 Kernel Module 280.13 Wed Jul 27 16:55:43 PDT 2011 GCC version: gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3) .tmp.unity.support.test.0: ApportVersion: 1.23-0ubuntu3 Architecture: i386 CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,grid,mousepoll,regex,animation,gnomecompat,place,vpswitch,snap,move,imgpng,session,resize,wall,workarounds,expo,unitymtgrabhandles,fade,scale,unityshell] CompositorRunning: compiz Date: Wed Oct 19 12:34:37 2011 DistUpgraded: Log time: 2011-10-17 10:34:40.092303 DistroCodename: oneiric DistroVariant: ubuntu DkmsStatus: nvidia-current, 280.13, 3.0.0-12-generic-pae, i686: installed EcryptfsInUse: Yes GraphicsCard: nVidia Corporation G84 [Quadro FX 570] [10de:040e] (rev a1) (prog-if 00 [VGA controller]) Subsystem: nVidia Corporation Device [10de:0474] InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007) JockeyStatus: xorg:nvidia_173 - NVIDIA accelerated graphics driver (Proprietary, Disabled, Not in use) xorg:nvidia_173_updates - NVIDIA accelerated graphics driver (post-release updates) (Proprietary, Disabled, Not in use) xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, In use) xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release updates) (Proprietary, Disabled, Not in use) MachineType: Dell Inc. OptiPlex GX620 ProcEnviron: LC_COLLATE=C PATH=(custom, user) LANG=en_GB.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic-pae root=UUID=f30b0ad9-b31f-4040-8895-24b4de430453 ro quiet splash vt.handoff=7 SourcePackage: unity UpgradeStatus: Upgraded to oneiric on 2011-10-17 (1 days ago) dmi.bios.date: 02/20/2006 dmi.bios.vendor: Dell Inc. dmi.bios.version: A06 dmi.board.name: 0HH807 dmi.board.vendor: Dell Inc. dmi.chassis.type: 6 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA06:bd02/20/2006:svnDellInc.:pnOptiPlexGX620:pvr:rvnDellInc.:rn0HH807:rvr:cvnDellInc.:ct6:cvr: dmi.product.name: OptiPlex GX620 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu5 version.libdrm2: libdrm2 2.4.26-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3 version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1 To manage notifications about this bug go to: https://bugs.launchpad.net/bamf/+bug/878113/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp
