[gtk+] widget-factory: Avoid a crash

[Matthias Clasen <matthiasc src gnome org>]

commit 1e63d94a06bb9887cb78696c2cf544c50912f8ee
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jun 5 18:46:50 2014 -0400

    widget-factory: Avoid a crash
    
    We want to be able to show the dialogs more than once, so just
    hide them on delete.

 demos/widget-factory/widget-factory.ui |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/demos/widget-factory/widget-factory.ui b/demos/widget-factory/widget-factory.ui
index 1d8a50c..579c5b6 100644
--- a/demos/widget-factory/widget-factory.ui
+++ b/demos/widget-factory/widget-factory.ui
@@ -2732,6 +2732,7 @@ Suspendisse feugiat quam quis dolor accumsan cursus. </property>
     <property name="text" translatable="yes">Do something?</property>
     <property name="secondary-text" translatable="yes">If you do something,
 bad things might happen.</property>
+    <signal name="delete-event" handler="gtk_widget_hide_on_delete"/>
     <child type="action">
       <object class="GtkButton" id="cancel_info_dialog">
         <property name="visible">True</property>
@@ -2754,6 +2755,7 @@ bad things might happen.</property>
     <property name="modal">True</property>
     <property name="use-header-bar">1</property>
     <property name="title" translatable="yes">Action</property>
+    <signal name="delete-event" handler="gtk_widget_hide_on_delete"/>
     <child internal-child="vbox">
       <object class="GtkBox">
         <child>
@@ -2789,6 +2791,7 @@ bad things might happen.</property>
     <property name="modal">True</property>
     <property name="use-header-bar">1</property>
     <property name="title" translatable="yes">Properties</property>
+    <signal name="delete-event" handler="gtk_widget_hide_on_delete"/>
     <child internal-child="vbox">
       <object class="GtkBox">
         <child>