xdg_shell stable: fix zero-sized positioner anchor_rect
We used 0 as unset-check value before, which was fine when 0-width
was invalid, but isn't anymore
@@ -334,6 +334,10 @@ static void xdg_shell_create_positioner(struct wl_client *wl_client,
return;
}
+ /* set widths to detect improper usages of get_popup */
+ positioner->size.width = -1;
+ positioner->anchor_rect.width = -1;
+
positioner->resource = wl_resource_create(wl_client,
&xdg_positioner_interface,
wl_resource_get_version(resource),
@@ -500,7 +504,7 @@ static void xdg_surface_get_popup(struct wl_client *client,
struct wlr_xdg_positioner *positioner =
wl_resource_get_user_data(positioner_resource);
- if (positioner->size.width == 0 || positioner->anchor_rect.width == 0) {
+ if (positioner->size.width == -1 || positioner->anchor_rect.width == -1) {
wl_resource_post_error(resource,
XDG_WM_BASE_ERROR_INVALID_POSITIONER,
"positioner object is not complete");
