[krb5-auth-dialog] Adjust header bar usage to the used desktop environment

[Guido Günther <guidog src gnome org>]

commit dddaa72bdda80fa7c8ae0bc415ea12603963646f
Author: Guido Günther <agx sigxcpu org>
Date:   Mon Oct 27 12:46:18 2014 +0100

    Adjust header bar usage to the used desktop environment

 src/ka-preferences.c |   10 ++++++++--
 src/ka-pwdialog.c    |   11 +++++++----
 2 files changed, 15 insertions(+), 6 deletions(-)
---
diff --git a/src/ka-preferences.c b/src/ka-preferences.c
index 85a7da7..344bf7f 100644
--- a/src/ka-preferences.c
+++ b/src/ka-preferences.c
@@ -625,8 +625,14 @@ ka_preferences_class_init (KaPreferencesClass *klass)
 KaPreferences*
 ka_preferences_new (KaApplet *applet)
 {
-    KaPreferences *self = g_object_new (KA_TYPE_PREFERENCES,
-                                        "applet", applet, NULL);
+    KaPreferences *self;
+    gboolean use_header;
+
+    g_object_get (gtk_settings_get_default (), "gtk-dialogs-use-header", &use_header, NULL);
+    self = g_object_new (KA_TYPE_PREFERENCES,
+                         "applet", applet,
+                         "use-header-bar", use_header,
+                         NULL);
     return self;
 }
 
diff --git a/src/ka-pwdialog.c b/src/ka-pwdialog.c
index 4cd7eb4..005a833 100644
--- a/src/ka-pwdialog.c
+++ b/src/ka-pwdialog.c
@@ -157,11 +157,14 @@ ka_error_dialog_new (void)
 KaPwDialog *
 ka_pwdialog_new (void)
 {
-    KaPwDialog *pwdialog = g_object_new (KA_TYPE_PWDIALOG, NULL);
-    KaPwDialogPrivate *priv = pwdialog->priv;
+    KaPwDialog *pwdialog;
+    gboolean use_header;
+
+    g_object_get (gtk_settings_get_default (), "gtk-dialogs-use-header", &use_header, NULL);
+    pwdialog = g_object_new (KA_TYPE_PWDIALOG, "use-header-bar", use_header, NULL);
 
-    priv->error_dialog = ka_error_dialog_new ();
-    add_password_entry (priv);
+    pwdialog->priv->error_dialog = ka_error_dialog_new ();
+    add_password_entry (pwdialog->priv);
     return pwdialog;
 }