shell: Don't allow maximized surfaces to be moved with touch
Moving a maximized surface with the pointer is already not possible,
so make the behavior with touch consistent.
https://bugs.freedesktop.org/show_bug.cgi?id=78208
diff --git a/desktop-shell/shell.c b/desktop-shell/shell.c
index ea7b3cd..db55ea9 100644
--- a/desktop-shell/shell.c
+++ b/desktop-shell/shell.c
@@ -1453,7 +1453,7 @@
if (!shsurf)
return -1;
- if (shsurf->state.fullscreen)
+ if (shsurf->state.fullscreen || shsurf->state.maximized)
return 0;
move = malloc(sizeof *move);