[libnma/lr/gtk-4.0: 15/22] cert-chooser-button: replace use of API gone from Gtk4

[Lubomir Rintel <lkundrak src gnome org>]

commit 00ead4e09bd097d9572db644da857e6dc3abfb34
Author: Lubomir Rintel <lkundrak v3 sk>
Date:   Wed Oct 13 13:50:10 2021 +0200

    cert-chooser-button: replace use of API gone from Gtk4
    
    Gtk3 compatibility is kept with a compatibility shim.

 src/nma-cert-chooser-button.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)
---
diff --git a/src/nma-cert-chooser-button.c b/src/nma-cert-chooser-button.c
index e4d57773..9d4fc528 100644
--- a/src/nma-cert-chooser-button.c
+++ b/src/nma-cert-chooser-button.c
@@ -188,11 +188,11 @@ static void
 select_from_token (NMACertChooserButton *button, GckSlot *slot)
 {
        NMACertChooserButtonPrivate *priv = NMA_CERT_CHOOSER_BUTTON_GET_PRIVATE (button);
-       GtkWidget *toplevel;
+       GtkRoot *toplevel;
        GtkWidget *dialog;
 
-       toplevel = gtk_widget_get_toplevel (GTK_WIDGET (button));
-       if (!gtk_widget_is_toplevel (toplevel) || !GTK_IS_WINDOW (toplevel))
+       toplevel = gtk_widget_get_root (GTK_WIDGET (button));
+       if (toplevel && !GTK_IS_WINDOW (toplevel))
                toplevel = NULL;
 
        dialog = nma_pkcs11_cert_chooser_dialog_new (slot,
@@ -200,7 +200,7 @@ select_from_token (NMACertChooserButton *button, GckSlot *slot)
                                                     ? CKO_PRIVATE_KEY
                                                     : CKO_CERTIFICATE,
                                                     priv->title,
-                                                    GTK_WINDOW (toplevel),
+                                                    (GtkWindow *) toplevel,
                                                     GTK_FILE_CHOOSER_ACTION_OPEN | GTK_DIALOG_USE_HEADER_BAR,
                                                     _("Select"), GTK_RESPONSE_ACCEPT,
                                                     _("Cancel"), GTK_RESPONSE_CANCEL,
@@ -222,15 +222,15 @@ static void
 select_from_file (NMACertChooserButton *button)
 {
        NMACertChooserButtonPrivate *priv = NMA_CERT_CHOOSER_BUTTON_GET_PRIVATE (button);
-       GtkWidget *toplevel;
+       GtkRoot *toplevel;
        GtkWidget *dialog;
 
-       toplevel = gtk_widget_get_toplevel (GTK_WIDGET (button));
-       if (!gtk_widget_is_toplevel (toplevel) || !GTK_IS_WINDOW (toplevel))
+       toplevel = gtk_widget_get_root (GTK_WIDGET (button));
+       if (toplevel && !GTK_IS_WINDOW (toplevel))
                toplevel = NULL;
 
        dialog = gtk_file_chooser_dialog_new (priv->title,
-                                             GTK_WINDOW (toplevel),
+                                             (GtkWindow *) toplevel,
                                              GTK_FILE_CHOOSER_ACTION_OPEN,
                                              _("Select"), GTK_RESPONSE_ACCEPT,
                                              _("Cancel"), GTK_RESPONSE_CANCEL,