https://bugs.kde.org/show_bug.cgi?id=474920
Bug ID: 474920
Summary: xdg-open prefers vscode over dolphin
Classification: Plasma
Product: xdg-desktop-portal-kde
Version: git-stable-Plasma/5.27
Platform: Neon
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: thomaslukeduf...@hotmail.co.uk
CC: aleix...@kde.org, jgrul...@redhat.com, n...@kde.org
Target Milestone: ---
SUMMARY
When VSCode is installed, it prepends itself to the
`/usr/share/applications/mimeinfo.cache` file of the host/sandbox. On GNOME
this seems to be handled fine, but on KDE and some other DE's this appears to
cause apps leveraging xdg-open to prefer VSCode over Dolphin.
This manifests as either "open folder" buttons failing to launch any app at all
(appearing broken) or opening VSCode instead of Dolphin/preferred file picker,
which usually breaks application functionality.
STEPS TO REPRODUCE
1. Install VSCode on a KDE system.
2. Attempt to open a folder via an app that relies on xdg-portals. (2 examples
are gdlauncher and prism launcher if you're in your bi-annual Minecraft phase
like I am)
OBSERVED RESULT
Nothing happens, or VSCode launches.
Using `journalctl -f` you can observe failed launches of vscode. Appears that
these happen mainly when VSCode is installed as a Snap (And possibly Flatpak
but I didn't check)
EXPECTED RESULT
Dolphin opens.
SOFTWARE/OS VERSIONS
Operating System: KDE neon 5.27
KDE Plasma Version: 5.27.8
KDE Frameworks Version: 5.110.0
Qt Version: 5.15.10
Kernel Version: 6.2.0-33-generic (64-bit)
Graphics Platform: X11
Processors: 12 × AMD Ryzen 5 4600H with Radeon Graphics
Memory: 22.8 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 1650 Ti/PCIe/SSE2
Manufacturer: Acer
Product Name: Nitro AN515-44
System Version: V1.04
ADDITIONAL INFORMATION
Issue on VSCode's repo:
https://github.com/microsoft/vscode/issues/114425
The maintainers seem to believe they're doing what is believed to be standard
practice when it comes to setting mimetypes. It could be that KDE and other
distros are parsing this file incorrectly (or GNOME is doing it wrong and
everyone has just assumed the outliers are wrong). Though I'm speculating on
all fronts.
As a suggestion, Plasma could do more to suggest which app should be used to
attempt to open an xdg-mimetype when multiple apps are available like Android
does. Right now, this is something only available in Dolphin via the "Open
with..." dialog, but making this a cross-system option would help with UX in
these fiddly edge-cases.
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