From: Jonas Ådahl <jadahl@gmail.com>
Date: Fri, 30 Sep 2022 07:30:30 +0000 (+0200)
Subject: surface/wayland: Handle no current monitor when calculating bounds
X-Git-Tag: archive/raspbian/4.8.3+ds-2+rpi1~3^2~20^2~1^2~9^2~1
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=79eab08797e1121f0fe7d84f570d28055d3f12b0;p=gtk4.git

surface/wayland: Handle no current monitor when calculating bounds

We shouldn't assume there is always a monitor to derive bounds from.
If there is no monitor, pass empty bounds, as this matches what
xdg_toplevel.configure_bounds do in this case.

(cherry picked from commit 148c1336745a043a9660da6c4734ed905c628130)
---

diff --git a/gdk/wayland/gdksurface-wayland.c b/gdk/wayland/gdksurface-wayland.c
index 86392923e5..225d380536 100644
--- a/gdk/wayland/gdksurface-wayland.c
+++ b/gdk/wayland/gdksurface-wayland.c
@@ -1419,10 +1419,18 @@ configure_toplevel_geometry (GdkSurface *surface)
       GdkRectangle monitor_geometry;
 
       monitor = g_list_model_get_item (gdk_display_get_monitors (display), 0);
-      gdk_monitor_get_geometry (monitor, &monitor_geometry);
-      bounds_width = monitor_geometry.width;
-      bounds_height = monitor_geometry.height;
-      g_object_unref (monitor);
+      if (monitor)
+        {
+          gdk_monitor_get_geometry (monitor, &monitor_geometry);
+          bounds_width = monitor_geometry.width;
+          bounds_height = monitor_geometry.height;
+          g_object_unref (monitor);
+        }
+      else
+        {
+          bounds_width = 0;
+          bounds_height = 0;
+        }
     }
 
   gdk_toplevel_size_init (&size, bounds_width, bounds_height);