x11: Avoid crash in fallback move emulation
authorMatthias Clasen <mclasen@redhat.com>
Fri, 15 Dec 2017 21:17:27 +0000 (16:17 -0500)
committerMatthias Clasen <mclasen@redhat.com>
Fri, 15 Dec 2017 21:19:09 +0000 (16:19 -0500)
commit61843d60b2543d4a3f25e2eaa25cb50bde5cfa4e
tree9224a4d1f97c720d5abbbc1543b54a47219bf679
parente0ce028c88858b96aeda9e41734a39a3a04f705d
x11: Avoid crash in fallback move emulation

Quietly do nothing when there is already an ongoing operation.
This matches the behavior of the ewmh code, and is much nicer
than a crash.

https://bugzilla.gnome.org/show_bug.cgi?id=789054
gdk/x11/gdkwindow-x11.c