[gtk/matthiasc/for-master] gtk-demo: Add a search button

[Matthias Clasen <matthiasc src gnome org>]

commit 714c610d6b148f891853c3fe501f4489f6564049
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Dec 2 19:53:55 2020 -0500

    gtk-demo: Add a search button
    
    Easter eggs are great, but search shouldn't be one.

 demos/gtk-demo/main.ui | 10 ++++++++++
 1 file changed, 10 insertions(+)
---
diff --git a/demos/gtk-demo/main.ui b/demos/gtk-demo/main.ui
index d4df910ef3..b4161c9519 100644
--- a/demos/gtk-demo/main.ui
+++ b/demos/gtk-demo/main.ui
@@ -28,6 +28,16 @@
             <property name="label" translatable="yes">Run</property>
           </object>
         </child>
+        <child>
+          <object class="GtkToggleButton">
+            <property name="icon-name">edit-find-symbolic</property>
+            <property name="valign">center</property>
+            <property name="active" bind-source="searchbar" bind-property="search-mode-enabled" 
bind-flags="bidirectional|sync-create"/>
+            <accessibility>
+              <property name="label" translatable="yes">Search</property>
+            </accessibility>
+          </object>
+        </child>
         <child type="end">
           <object class="GtkMenuButton" id="gear_menu_button">
             <property name="valign">center</property>