why not just make it a simple action, like leave the mouse in the upper left corner or hot key + button in the notification window that could look like [screensaver: disabled]
then theres no worry about the app. a timer could be good here too, like disable for 1hr if thats how long the movie is. this might be hard, but the thought just came to me. if an app is playing fullscreen and doesnt receive input, the "screensaver" could simply disable input and pop into a password entry when a cat proof input is received (ctrl+alt+del for example) the host windowing system could then be used to verify that this is not a trick or your not just watching that famous scene where someone is using qubes-os! -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/c35e6508-2df3-45b8-a2d2-854d3d242122%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.