ui->main_box = GTK_WIDGET(gtk_builder_get_object(builder, "main_box"));
ui->popup_menu = GTK_WIDGET(gtk_builder_get_object(builder,
"popup_menu"));
g_object_ref(G_OBJECT(ui->popup_menu));
ui->main_window = window;
ui->main_box = GTK_WIDGET(gtk_builder_get_object(builder, "main_box"));
ui->popup_menu = GTK_WIDGET(gtk_builder_get_object(builder,
"popup_menu"));
g_object_ref(G_OBJECT(ui->popup_menu));
ui->main_window = window;