[gedit] File choosers: GeditFileChooserOpenDialog: extra widget UI

[Sébastien Wilmet <swilmet src gnome org>]

commit 554ec9eb971716f60995558b1e28a9b94b6c7eac
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sat Jun 13 21:56:00 2020 +0200

    File choosers: GeditFileChooserOpenDialog: extra widget UI

 gedit/gedit-file-chooser-open-dialog.c | 35 +++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)
---
diff --git a/gedit/gedit-file-chooser-open-dialog.c b/gedit/gedit-file-chooser-open-dialog.c
index 31a0bd2d7..1e8e3e2f6 100644
--- a/gedit/gedit-file-chooser-open-dialog.c
+++ b/gedit/gedit-file-chooser-open-dialog.c
@@ -19,17 +19,47 @@
 
 #include "gedit-file-chooser-open-dialog.h"
 #include <glib/gi18n.h>
+#include "gedit-encodings-combo-box.h"
 
 struct _GeditFileChooserOpenDialogPrivate
 {
-       gint something;
+       GeditEncodingsComboBox *encodings_combo_box;
 };
 
 G_DEFINE_TYPE_WITH_PRIVATE (GeditFileChooserOpenDialog, _gedit_file_chooser_open_dialog, 
GEDIT_TYPE_FILE_CHOOSER_OPEN)
 
+static void
+setup_encoding_extra_widget (GeditFileChooserOpenDialog *chooser,
+                            GtkFileChooser             *gtk_chooser)
+{
+       GtkWidget *label;
+       GtkWidget *encodings_combo_box;
+       GtkWidget *hgrid;
+
+       g_assert (chooser->priv->encodings_combo_box == NULL);
+
+       label = gtk_label_new_with_mnemonic (_("C_haracter Encoding:"));
+       encodings_combo_box = gedit_encodings_combo_box_new (FALSE);
+       gtk_label_set_mnemonic_widget (GTK_LABEL (label), encodings_combo_box);
+
+       hgrid = gtk_grid_new ();
+       gtk_grid_set_column_spacing (GTK_GRID (hgrid), 6);
+       gtk_container_add (GTK_CONTAINER (hgrid), label);
+       gtk_container_add (GTK_CONTAINER (hgrid), encodings_combo_box);
+
+       chooser->priv->encodings_combo_box = GEDIT_ENCODINGS_COMBO_BOX (encodings_combo_box);
+       g_object_ref_sink (chooser->priv->encodings_combo_box);
+
+       gtk_widget_show_all (hgrid);
+       gtk_file_chooser_set_extra_widget (gtk_chooser, hgrid);
+}
+
 static void
 _gedit_file_chooser_open_dialog_dispose (GObject *object)
 {
+       GeditFileChooserOpenDialog *chooser = GEDIT_FILE_CHOOSER_OPEN_DIALOG (object);
+
+       g_clear_object (&chooser->priv->encodings_combo_box);
 
        G_OBJECT_CLASS (_gedit_file_chooser_open_dialog_parent_class)->dispose (object);
 }
@@ -49,6 +79,9 @@ chooser_create_gtk_file_chooser (GeditFileChooser *chooser)
 
        gtk_dialog_set_default_response (GTK_DIALOG (file_chooser), GTK_RESPONSE_ACCEPT);
 
+       setup_encoding_extra_widget (GEDIT_FILE_CHOOSER_OPEN_DIALOG (chooser),
+                                    GTK_FILE_CHOOSER (file_chooser));
+
        if (g_object_is_floating (file_chooser))
        {
                g_object_ref_sink (file_chooser);