From 5f0f6f558e65e5653202c1216ea5720a985f1cf7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20=22sp1rit=22=E2=80=8B?= <sp1rit@disroot.org>
Date: Sat, 2 Nov 2024 19:23:30 +0100
Subject: [PATCH] demo: Fix drag and drop demo critical

Right now, child is NULL when starting a drag in the main area and
moving the pointer onto the colors, there releasing it.
To avoid gtk_widget_get_ancestor thowing a critical, early exit if child
is NULL.
---
 demos/gtk-demo/dnd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/demos/gtk-demo/dnd.c b/demos/gtk-demo/dnd.c
index 747f5f3bb9..ac5b38c050 100644
--- a/demos/gtk-demo/dnd.c
+++ b/demos/gtk-demo/dnd.c
@@ -579,6 +579,8 @@ released_cb (GtkGesture *gesture,
 
   widget = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture));
   child = gtk_widget_pick (widget, x, y, 0);
+  if (!child)
+    return;
   item = (CanvasItem *)gtk_widget_get_ancestor (child, canvas_item_get_type ());
   if (!item)
     return;