[gthumb] add to catalog: use a GthVfsTree instead of a GthSourceTree

[Paolo Bacchilega <paobac src gnome org>]

commit a0ef2026c7a6bf49cd3de4faf63f21e28882a262
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sat Nov 2 11:37:07 2019 +0100

    add to catalog: use a GthVfsTree instead of a GthSourceTree
    
    It was almost the same widget.

 extensions/catalogs/dlg-add-to-catalog.c | 31 +++++++++++++------------------
 1 file changed, 13 insertions(+), 18 deletions(-)
---
diff --git a/extensions/catalogs/dlg-add-to-catalog.c b/extensions/catalogs/dlg-add-to-catalog.c
index bb1de883..fdb6348f 100644
--- a/extensions/catalogs/dlg-add-to-catalog.c
+++ b/extensions/catalogs/dlg-add-to-catalog.c
@@ -264,15 +264,6 @@ add_close_button_clicked_cb (GtkWidget  *widget,
 }
 
 
-static void
-source_tree_open_cb (GthFolderTree *folder_tree,
-                    GFile         *file,
-                     gpointer       user_data)
-{
-       add_button_clicked_cb (NULL, (DialogData *)user_data);
-}
-
-
 static void
 update_sensitivity (DialogData *data)
 {
@@ -291,9 +282,17 @@ update_sensitivity (DialogData *data)
 }
 
 
+static void
+source_tree_changed_cb (GthVfsTree *folder_tree,
+                       gpointer    user_data)
+{
+       update_sensitivity ((DialogData *) user_data);
+}
+
+
 static void
 source_tree_selection_changed_cb (GtkTreeSelection *treeselection,
-                                  gpointer          user_data)
+                                 gpointer          user_data)
 {
        update_sensitivity ((DialogData *) user_data);
 }
@@ -446,7 +445,7 @@ new_catalog_dialog_response_cb (GtkWidget *dialog,
 
 static void
 new_catalog_button_clicked_cb (GtkWidget  *widget,
-                              DialogData *data)
+                              DialogData *data)
 {
        GtkWidget *dialog;
 
@@ -654,7 +653,6 @@ void
 dlg_add_to_catalog (GthBrowser *browser)
 {
        DialogData       *data;
-       GFile            *base;
        GtkTreeSelection *selection;
 
        if (gth_browser_get_dialog (browser, ADD_TO_CATALOG_DIALOG_NAME)) {
@@ -674,10 +672,7 @@ dlg_add_to_catalog (GthBrowser *browser)
        data->add_data->parent_window = data->add_data->dialog = data->dialog;
        add_data_ref (data->add_data);
 
-       base = g_file_new_for_uri ("catalog:///");
-       data->source_tree = gth_source_tree_new (base);
-       g_object_unref (base);
-
+       data->source_tree = gth_vfs_tree_new ("catalog:///");
        gtk_widget_show (data->source_tree);
        gtk_container_add (GTK_CONTAINER (GET_WIDGET ("catalog_list_scrolled_window")), data->source_tree);
 
@@ -695,8 +690,8 @@ dlg_add_to_catalog (GthBrowser *browser)
                                  G_CALLBACK (gtk_widget_destroy),
                                  G_OBJECT (data->dialog));
        g_signal_connect (G_OBJECT (data->source_tree),
-                         "open",
-                         G_CALLBACK (source_tree_open_cb),
+                         "changed",
+                         G_CALLBACK (source_tree_changed_cb),
                          data);
        g_signal_connect (G_OBJECT (GET_WIDGET ("add_button")),
                          "clicked",