[gedit] PreferencesDialog: use GtkFileChooserNative, not GeditFileChooserDialog

[Sébastien Wilmet <swilmet src gnome org>]

commit eada68d97e4cf854495e6ed4fa9192719fc59e60
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Wed Jun 3 18:28:26 2020 +0200

    PreferencesDialog: use GtkFileChooserNative, not GeditFileChooserDialog
    
    It's a first step to use GtkFileChooserNative and get rid of
    GeditFileChooserDialog.
    
    In the PreferencesDialog, the file chooser is used to install an extra
    style/color scheme.

 gedit/gedit-preferences-dialog.c | 66 +++++++++++++++++-----------------------
 1 file changed, 28 insertions(+), 38 deletions(-)
---
diff --git a/gedit/gedit-preferences-dialog.c b/gedit/gedit-preferences-dialog.c
index 3e8933c62..ce6c0e2da 100644
--- a/gedit/gedit-preferences-dialog.c
+++ b/gedit/gedit-preferences-dialog.c
@@ -23,22 +23,14 @@
 
 #include "gedit-preferences-dialog.h"
 
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-
 #include <glib/gi18n.h>
 #include <glib/gstdio.h>
 #include <tepl/tepl.h>
 #include <libpeas-gtk/peas-gtk.h>
 
-#include "gedit-utils.h"
 #include "gedit-debug.h"
-#include "gedit-document.h"
 #include "gedit-dirs.h"
 #include "gedit-settings.h"
-#include "gedit-utils.h"
-#include "gedit-file-chooser-dialog.h"
 
 /*
  * gedit-preferences dialog is a singleton since we don't
@@ -92,9 +84,8 @@ struct _GeditPreferencesDialog
        GtkWidget       *install_scheme_button;
        GtkWidget       *uninstall_scheme_button;
        GtkWidget       *schemes_toolbar;
-
-       GeditFileChooserDialog *
-                        install_scheme_file_schooser;
+       GtkFileChooserNative *
+                        install_scheme_file_chooser;
 
        /* Tabs */
        GtkWidget       *tabs_width_spinbutton;
@@ -662,7 +653,7 @@ uninstall_style_scheme (GtkSourceStyleScheme *scheme)
 }
 
 static void
-add_scheme_chooser_response_cb (GeditFileChooserDialog *chooser,
+add_scheme_chooser_response_cb (GtkFileChooserNative   *chooser,
                                gint                    response_id,
                                GeditPreferencesDialog *dialog)
 {
@@ -674,18 +665,15 @@ add_scheme_chooser_response_cb (GeditFileChooserDialog *chooser,
 
        if (response_id != GTK_RESPONSE_ACCEPT)
        {
-               gedit_file_chooser_dialog_hide (chooser);
                return;
        }
 
-       file = gedit_file_chooser_dialog_get_file (chooser);
+       file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (chooser));
        if (file == NULL)
        {
                return;
        }
 
-       gedit_file_chooser_dialog_hide (chooser);
-
        scheme_id = install_style_scheme (file, &error);
        g_object_unref (file);
 
@@ -714,43 +702,45 @@ add_scheme_chooser_response_cb (GeditFileChooserDialog *chooser,
 
 static void
 install_scheme_clicked (GtkButton              *button,
-                       GeditPreferencesDialog *dlg)
+                       GeditPreferencesDialog *dialog)
 {
-       GeditFileChooserDialog *chooser;
+       GtkFileChooserNative *chooser;
+       GtkFileFilter *scheme_filter;
+       GtkFileFilter *all_filter;
 
-       if (dlg->install_scheme_file_schooser != NULL)
+       if (dialog->install_scheme_file_chooser != NULL)
        {
-               gedit_file_chooser_dialog_show (dlg->install_scheme_file_schooser);
+               gtk_native_dialog_show (GTK_NATIVE_DIALOG (dialog->install_scheme_file_chooser));
                return;
        }
 
-       chooser = gedit_file_chooser_dialog_create (_("Add Scheme"),
-                                                   GTK_WINDOW (dlg),
-                                                   GEDIT_FILE_CHOOSER_OPEN,
-                                                   NULL,
-                                                   _("_Cancel"), GTK_RESPONSE_CANCEL,
-                                                   _("A_dd Scheme"), GTK_RESPONSE_ACCEPT);
+       chooser = gtk_file_chooser_native_new (_("Add Color Scheme"),
+                                              GTK_WINDOW (dialog),
+                                              GTK_FILE_CHOOSER_ACTION_OPEN,
+                                              _("_Add Scheme"),
+                                              _("_Cancel"));
 
        /* Filters */
-       gedit_file_chooser_dialog_add_pattern_filter (chooser,
-                                                     _("Color Scheme Files"),
-                                                     "*.xml");
+       scheme_filter = gtk_file_filter_new ();
+       gtk_file_filter_set_name (scheme_filter, _("Color Scheme Files"));
+       gtk_file_filter_add_pattern (scheme_filter, "*.xml");
+       gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), scheme_filter);
 
-       gedit_file_chooser_dialog_add_pattern_filter (chooser,
-                                                     _("All Files"),
-                                                     "*");
+       all_filter = gtk_file_filter_new ();
+       gtk_file_filter_set_name (all_filter, _("All Files"));
+       gtk_file_filter_add_pattern (all_filter, "*");
+       gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), all_filter);
+
+       gtk_file_chooser_set_filter (GTK_FILE_CHOOSER (chooser), scheme_filter);
 
        g_signal_connect (chooser,
                          "response",
                          G_CALLBACK (add_scheme_chooser_response_cb),
-                         dlg);
-
-       dlg->install_scheme_file_schooser = chooser;
+                         dialog);
 
-       g_object_add_weak_pointer (G_OBJECT (chooser),
-                                  (gpointer) &dlg->install_scheme_file_schooser);
+       g_set_weak_pointer (&dialog->install_scheme_file_chooser, chooser);
 
-       gedit_file_chooser_dialog_show (chooser);
+       gtk_native_dialog_show (GTK_NATIVE_DIALOG (chooser));
 }
 
 static void