Fix flameshot setup on wayland

[fliiiix]

Flameshot needs a lot of help before it works.

cat .config/flameshot/flameshot.ini
[General]
contrastOpacity=188
useGrimAdapter=true

cat ~/.config/xdg-desktop-portal/sway-portals.conf
[preferred]
# use xdg-desktop-portal-gtk for every portal interface
default=gtk
# except for the xdg-desktop-portal-wlr supplied interfaces
org.freedesktop.impl.portal.Screencast=wlr
org.freedesktop.impl.portal.Screenshot=wlr

cat ~/.config/environment.d/10-env.conf        
SDL_VIDEODRIVER=wayland
_JAVA_AWT_WM_NONREPARENTING=1
QT_QPA_PLATFORM=wayland
XDG_CURRENT_DESKTOP=sway
XDG_SESSION_DESKTOP=sway

cat .config/sway/config
...
exec systemctl --user import-environment DISPLAY WAYLAND_DISPLAY SWAYSOCK
exec hash dbus-update-activation-environment 2>/dev/null && dbus-update-activation-environment --systemd DISPLAY WAYLAND_DISPLAY SWAYSOCK

for_window [app_id="flameshot"] border pixel 0, floating enable, fullscreen disable, move absolute position 0 0
...

After a reboot screenshots with flameshot should work.

sources:

• https://github.com/flameshot-org/flameshot/blob/master/docs/Sway%20and%20wlroots%20support.md#sway-and-wlroots-support
• https://www.lorenzobettini.it/2024/06/environment-variables-in-sway/