data-device: only allow one drag at a time
@@ -122,6 +122,9 @@ static void drag_end(struct wlr_drag *drag) {
drag_icon_set_mapped(drag->icon, false);
}
+ assert(drag->seat->drag == drag);
+ drag->seat->drag = NULL;
+
wlr_signal_emit_safe(&drag->events.destroy, drag);
free(drag);
}
@@ -434,6 +437,13 @@ bool seat_client_start_drag(struct wlr_seat_client *client,
return true;
}
+ if (seat->drag != NULL) {
+ wlr_log(WLR_DEBUG, "Refusing to start drag, "
+ "another drag is already in progress");
+ free(drag);
+ return true;
+ }
+
if (icon_surface) {
int32_t touch_id = (point ? point->touch_id : 0);
struct wlr_drag_icon *icon =
