Add support for Hyprland

[Schneegans]

This finally resolves #234. There are some caveats, though:

For now, you will need at least these window rules on Hyprland:

windowrule = noblur, Kando
windowrule = noborder, Kando
windowrule = noanim, Kando
windowrule = center, Kando
windowrule = size 100% 100%, Kando

And to make the global hotkey working, you have to add this binding to your Hyprland config:

bind = CTRL, Space, global, kando:prototype_menu

[vaxerski]

FYI, you can fix the need for the windowrules and the virtual-pointer / virtual-keyboard by using a wlr-layer-shell surface on the overlay layer

Example: https://github.com/emersion/slurp

[Schneegans]

Thanks for the hint! However I am not sure if and how I could redirect the content of a normal window to such a layer surface...? And the virtual input methods I would need nonetheless for simulating key-presses an pointer-motion events.

[vaxerski]

check slurp's source. Rendering shouldn't differ, you just need to make a different surface.