[NetworkManager-pptp/lr/gtk-4.0: 9/10] properties: use a header bar for advanced dialog

[Lubomir Rintel <lkundrak src gnome org>]

commit 8200cb5372b27bd69596e49df52c870a611c38db
Author: Lubomir Rintel <lkundrak v3 sk>
Date:   Fri Jan 14 16:25:36 2022 +0100

    properties: use a header bar for advanced dialog

 properties/nm-pptp-dialog.ui | 79 +++++++++++++++++++++++++++-----------------
 1 file changed, 49 insertions(+), 30 deletions(-)
---
diff --git a/properties/nm-pptp-dialog.ui b/properties/nm-pptp-dialog.ui
index 8d811e0..06e8ca0 100644
--- a/properties/nm-pptp-dialog.ui
+++ b/properties/nm-pptp-dialog.ui
@@ -24,6 +24,52 @@
     <property name="modal">True</property>
     <property name="destroy_with_parent">True</property>
     <property name="icon_name">stock-preferences</property>
+    <action-widgets>
+      <action-widget response="-6">cancel_button</action-widget>
+      <action-widget response="-5">apply_button</action-widget>
+    </action-widgets>
+    <child type="titlebar">
+      <object class="GtkHeaderBar">
+        <property name="visible">True</property>
+        <property name="can-focus">False</property>
+        <property name="show-close-button">False</property>
+        <child type="title">
+          <object class="GtkLabel">
+            <property name="visible">True</property>
+            <property name="can-focus">False</property>
+            <property name="label" translatable="yes">Advanced Properties</property>
+            <style>
+              <class name="title"/>
+            </style>
+          </object>
+        </child>
+        <child>
+          <object class="GtkButton" id="cancel_button">
+            <property name="label" translatable="yes">_Cancel</property>
+            <property name="visible">True</property>
+            <property name="can-focus">True</property>
+            <property name="use-underline">True</property>
+          </object>
+        </child>
+        <child>
+          <object class="GtkButton" id="apply_button">
+            <property name="label" translatable="yes">_Apply</property>
+            <property name="visible">True</property>
+            <property name="can-focus">True</property>
+            <property name="receives-default">True</property>
+            <property name="use-underline">True</property>
+            <style>
+              <class name="default"/>
+              <class name="suggested-action"/>
+            </style>
+          </object>
+          <packing>
+            <property name="pack-type">end</property>
+            <property name="position">1</property>
+          </packing>
+        </child>
+      </object>
+    </child>
     <child internal-child="vbox">
       <object class="GtkBox" id="dialog-vbox3">
         <property name="visible">True</property>
@@ -35,37 +81,14 @@
         <property name="margin-bottom">24</property>
         <property name="spacing">16</property>
         <child internal-child="action_area">
-          <object class="GtkButtonBox" id="dialog-action_area3">
+          <object class="GtkBox" id="dialog-action_area1">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
-            <property name="layout_style">end</property>
             <child>
-              <object class="GtkButton" id="cancel_button">
-                <property name="label">gtk-cancel</property>
-                <property name="visible">True</property>
-                <property name="can_focus">True</property>
-                <property name="receives_default">False</property>
-                <property name="use_stock">True</property>
-              </object>
-              <packing>
-                <property name="expand">True</property>
-                <property name="fill">True</property>
-                <property name="position">0</property>
-              </packing>
+              <placeholder/>
             </child>
             <child>
-              <object class="GtkButton" id="ok_button">
-                <property name="label">gtk-ok</property>
-                <property name="visible">True</property>
-                <property name="can_focus">True</property>
-                <property name="receives_default">False</property>
-                <property name="use_stock">True</property>
-              </object>
-              <packing>
-                <property name="expand">True</property>
-                <property name="fill">True</property>
-                <property name="position">1</property>
-              </packing>
+              <placeholder/>
             </child>
           </object>
           <packing>
@@ -289,10 +312,6 @@ config: lcp-echo-failure and lcp-echo-interval</property>
         </child>
       </object>
     </child>
-    <action-widgets>
-      <action-widget response="-6">cancel_button</action-widget>
-      <action-widget response="-5">ok_button</action-widget>
-    </action-widgets>
   </object>
   <object class="GtkListStore" id="model2">
     <columns>