player: add --input-cursor-passthrough option

Add an option for allowing pointer events to pass through the mpv
window. This could be useful in cases where a user wants to display
transparent images/video with mpv and interact with applications beneath
the window. This commit implements this functionality for x11 and
wayland. Note that whether or not this actually works likely depends on
your window manager and/or compositor. E.g. sway ignores pointer events
but the entire window becomes draggable when you float it (nothing under
the mpv window receives events). Weston behaves as expected however so
that is a compositor bug. Excuse the couple of completely unrelated
style fixes (both were originally done by me).

1 files changed, 1 insertions, 0 deletions

diff --git a/options/options.h b/options/options.h
index 6dbe509a5b..0125c433f5 100644
--- a/options/options.h
+++ b/options/options.h
@@ -32,6 +32,7 @@ typedef struct mp_vo_opts {
     int x11_netwm;
     int x11_bypass_compositor;
     int x11_present;
+    bool cursor_passthrough;
     bool native_keyrepeat;
 
     float panscan;