https://bugs.kde.org/show_bug.cgi?id=450897
Bug ID: 450897
Summary: KWin JS script callDBus invalid signature
Product: kwin
Version: 5.24.2
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: scripting
Assignee: kwin-bugs-n...@kde.org
Reporter: pendo3...@gmail.com
Target Milestone: ---
SUMMARY
"callDBus" emitting an invalid signature.
STEPS TO REPRODUCE
0. Have KLauncher plus Dolphin (or another testing app installed)
1. Write a KWin JS Script with the following content
> callDBus("org.kde.klauncher5", "/KLauncher", "org.kde.KLauncher",
> "exec_blind", "dolphin", new Array(), function(e) { print(e); });
2. Execute the script (either through "plasma-interactiveconsole --kwin" or
"kpackagetool5" and enabling)
OBSERVED RESULT
Nothing happens.
EXPECTED RESULT
Assuming dolphin is installed and in path, a Dolphin window should open. This
works correctly when invoking via "qdbus":
> qdbus org.kde.klauncher5 /KLauncher org.kde.KLauncher.exec_blind dolphin
SOFTWARE/OS VERSIONS
Linux Kernel Version: 5.16.11-arch1-1
KDE Plasma Version: 5.24.2
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
After following the repro-script and then running the provided `qdbus` command
with `dbus-monitor` open, I noticed that the method call looks almost the same
for the two scenarios:
working `qdbus` invocation:
> method call time=1645911839.161296 sender=:1.73 ->
> destination=org.kde.klauncher5 serial=361 path=/KLauncher;
> interface=org.kde.KLauncher; member=exec_blind
> string "dolphin"
> array [
> ]
not working KWin script / `callDBus` invocation:
method call time=1645911778.904772 sender=:1.11 ->
destination=org.kde.klauncher5 serial=1739
> path=/KLauncher; interface=org.kde.KLauncher; member=exec_blind
> string "dolphin"
> array [
> ]
but the `callDBus` invocation then returns this error, while the working qdbus
command just opens a Dolphin window:
> error time=1645911778.904910 sender=:1.6 -> destination=:1.11
> error_name=org.freedesktop.DBus.Error.UnknownMethod reply_serial=1739
> string "No such method 'exec_blind' in interface 'org.kde.KLauncher' at
> object path '/KLauncher' (signature 'sav')"
This is my first time posting here, sorry if the formatting is bad. Also, sorry
if this is in the wrong category. I tried searching for similar issues, but
didn't really find any.
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