xdg-desktop-portal-lxqt

A backend implementation for xdg-desktop-portal that is using Qt/KF5/libfm-qt.

Building xdg-desktop-portal-lxqt

Dependencies:

• Build + Runtime
  • Qt 6
  • KDE Frameworks - KWindowSystem
  • libfm-qt
• Runtime only
  • Qt 6
  • KDE Frameworks - KWindowSystem
  • xdg-desktop-portal
  • libfm-qt

Build instructions:

$ mkdir build && cd build
$ cmake .. [your_options]
$ make
# make install

Use LXQt filedialog in applications

• Firefox version 98 and higher: Open in the address bar about:config, search for "portal" and set both widget.use-xdg-desktop-portal.file-picker and widget.use-xdg-desktop-portal.mime-handler from 2 to 1.
• Thunderbird: Preferences > Configuration Editor widget.use-xdg-desktop-portal has to be set to 1.
• Some other GTK applications can be started with GTK_USE_PORTAL=1 application
• To use the LXQt file dialog if more desktop-portals are installed: ~/.config/xdg-desktop-portal/lxqt-portals.conf

[preferred]
default=lxqt

A general use of GTK_USE_PORTAL=1 in ~/.profile or /etc/profile can lead to issues and is not recommended.