[gnome-panel] panel-addto-dialog: add support for initial setup dialog

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 3e867fb0e97497a0889f091a14f6b3acb6306fd9
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sat Sep 15 22:46:32 2018 +0300

    panel-addto-dialog: add support for initial setup dialog

 gnome-panel/panel-addto-dialog.c | 74 +++++++++++++++++++++++++++++++++++++---
 1 file changed, 69 insertions(+), 5 deletions(-)
---
diff --git a/gnome-panel/panel-addto-dialog.c b/gnome-panel/panel-addto-dialog.c
index f405900e9..22892469c 100644
--- a/gnome-panel/panel-addto-dialog.c
+++ b/gnome-panel/panel-addto-dialog.c
@@ -666,11 +666,70 @@ panel_addto_make_application_model (PanelAddtoDialog *dialog)
                                                dialog, NULL);
 }
 
+typedef struct
+{
+       PanelAddtoDialog *dialog;
+       gchar            *iid;
+} InitialSetupData;
+
+static InitialSetupData *
+initial_setup_data_new (PanelAddtoDialog *dialog,
+                        const gchar      *iid)
+{
+       InitialSetupData *data;
+
+       data = g_new0 (InitialSetupData, 1);
+
+       data->dialog = g_object_ref (dialog);
+       data->iid = g_strdup (iid);
+
+       return data;
+}
+
+static void
+initial_setup_data_free (gpointer user_data)
+{
+       InitialSetupData *data;
+
+       data = (InitialSetupData *) user_data;
+
+       g_object_unref (data->dialog);
+       g_free (data->iid);
+       g_free (data);
+}
+
+static void
+initial_setup_dialog_cb (GpInitialSetupDialog *dialog,
+                         gboolean              canceled,
+                         gpointer              user_data)
+{
+       InitialSetupData *data;
+       int pack_index;
+       GVariant *initial_settings;
+
+       data = (InitialSetupData *) user_data;
+
+       if (canceled)
+               return;
+
+       pack_index = panel_widget_get_new_pack_index (data->dialog->panel_widget,
+                                                     data->dialog->insert_pack_type);
+
+       initial_settings = gp_initital_setup_dialog_get_settings (dialog);
+
+       panel_applet_frame_create (data->dialog->panel_widget->toplevel,
+                                  data->dialog->insert_pack_type, pack_index,
+                                  data->iid, initial_settings);
+
+       g_variant_unref (initial_settings);
+}
+
 static void
 panel_addto_add_item (PanelAddtoDialog   *dialog,
                      PanelAddtoItemInfo *item_info)
 {
        int pack_index;
+       InitialSetupData *data;
 
        g_assert (item_info != NULL);
 
@@ -679,11 +738,16 @@ panel_addto_add_item (PanelAddtoDialog   *dialog,
 
        switch (item_info->type) {
        case PANEL_ADDTO_APPLET:
-               panel_applet_frame_create (dialog->panel_widget->toplevel,
-                                          dialog->insert_pack_type,
-                                          pack_index,
-                                          item_info->iid,
-                                          NULL);
+               data = initial_setup_data_new (dialog, item_info->iid);
+
+               if (!panel_applets_manager_open_initial_setup_dialog (item_info->iid,
+                                                                     GTK_WINDOW (dialog),
+                                                                     initial_setup_dialog_cb,
+                                                                     data, initial_setup_data_free)) {
+                       panel_applet_frame_create (dialog->panel_widget->toplevel,
+                                                  dialog->insert_pack_type, pack_index,
+                                                  item_info->iid, NULL);
+               }
                break;
        case PANEL_ADDTO_ACTION:
                panel_action_button_create (dialog->panel_widget->toplevel,