Data device testing

Wayland's "data device" manages selections used for clipboard, drag-and-drop, and primary selection. This page contains tips to test this functionality.

Test clients

• GTK3, Wayland-native
  • gedit: for simple plain-text
  • Epiphany: for copying rich text and images
  • LibreOffice Writer (lowriter): for pasting rich text and images
• X11
  • Firefox: for copying rich text and images
  • Gimp (GTK2): for pasting images
  • Chromium: for copying rich text and images
• CLI tools: useful to inspect/debug the selection contents
  • wl-clipboard: Wayland-native, wl-paste -l to list MIME types, wl-paste -t <type> to paste
  • xclip: X11 (must be run from an X11 terminal emulator like xterm), xclip -selection clipboard -o -t TARGETS ti list MIME types, xclip -selection clipboard -o [-t <type>] to paste

References

• Wayland
  • https://emersion.fr/blog/2020/wayland-clipboard-drag-and-drop/
• X11
  • https://tronche.com/gui/x/icccm/sec-2.html
  • https://www.freedesktop.org/wiki/Specifications/XDND/
  • https://johnlindal.wixsite.com/xdnd
  • http://www.call-with-current-continuation.org/rants/icccm.txt