From: Christian Hergert <christian@hergert.me>
Date: Wed, 2 Mar 2022 08:32:50 +0000 (-0800)
Subject: macos: add re-entrancy check when monitors change
X-Git-Tag: archive/raspbian/4.8.3+ds-2+rpi1~3^2~20^2~4^2~347^2~12
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=e5238bf54f42036f76e2b6d227f5c83a74e35251;p=gtk4.git

macos: add re-entrancy check when monitors change
---

diff --git a/gdk/macos/gdkmacossurface-private.h b/gdk/macos/gdkmacossurface-private.h
index 15a7442c17..5f1f551f93 100644
--- a/gdk/macos/gdkmacossurface-private.h
+++ b/gdk/macos/gdkmacossurface-private.h
@@ -75,6 +75,7 @@ struct _GdkMacosSurface
   guint geometry_dirty : 1;
   guint next_frame_set : 1;
   guint show_on_next_swap : 1;
+  guint in_change_monitor : 1;
   guint in_frame : 1;
   guint awaiting_frame : 1;
 };
diff --git a/gdk/macos/gdkmacossurface.c b/gdk/macos/gdkmacossurface.c
index 442ea485ca..cd376f64c3 100644
--- a/gdk/macos/gdkmacossurface.c
+++ b/gdk/macos/gdkmacossurface.c
@@ -1061,6 +1061,11 @@ _gdk_macos_surface_monitor_changed (GdkMacosSurface *self)
 
   g_return_if_fail (GDK_IS_MACOS_SURFACE (self));
 
+  if (self->in_change_monitor)
+    return;
+
+  self->in_change_monitor = TRUE;
+
   _gdk_macos_surface_cancel_frame (self);
 
   rect.x = self->root_x;
@@ -1129,6 +1134,8 @@ _gdk_macos_surface_monitor_changed (GdkMacosSurface *self)
 
   _gdk_macos_surface_configure (self);
   gdk_surface_invalidate_rect (GDK_SURFACE (self), NULL);
+
+  self->in_change_monitor = FALSE;
   _gdk_macos_surface_request_frame (self);
 }