[Wayland-bugs] [Bug 777333] In a GNOME Wayland session, gnome-terminal windows cannot be moved around with a wacom pen

[mutter (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=777333

Jason Gerecke <killertofu at gmail.com> changed:

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                 CC|                            |killertofu at gmail.com

--- Comment #5 from Jason Gerecke <killertofu at gmail.com> ---
I did some tracing with GDB to better understand where the issue lies. It looks
like when the GTK side of things works fine: when you start to drag a window,
things eventually get all the way down to a call to `zxdg_toplevel_v6_move`
where it becomes Mutter's responsibility.

Within Mutter, the `xdg_toplevel_move` function is where processing starts.
That function calls `meta_wayland_seat_get_grab_info` to get some X/Y
coordinates, but the function is currently only capable of working with events
from a "pointer" or "touch" device attached to the Wayland seat. It does not
know how to deal with tablet tools, so processing stops and the window is never
moved.

It isn't immediately obvious to me how support would be added... Definitely
something for the Mutter developers to work on.

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