More fixes to status.

src/notebook.cc

@@ -172,8 +172,6 @@ bool Notebook::close_current_page() {
     }
     int page = get_current_page();
     remove_page(page);
-    if(get_current_page()==-1)
-      Singleton::status()->set_text("");
     auto source_view=source_views.at(page);
     if(auto source_clang_view=dynamic_cast<Source::ClangView*>(source_view))
       source_clang_view->async_delete();

src/window.cc

@@ -327,6 +327,8 @@ void Window::create_menu() {
     notebook.close_current_page();
     if(notebook.get_current_page()!=-1)
       Singleton::status()->set_text(notebook.get_current_view()->status);
+    else
+      Singleton::status()->set_text("");
   });
   menu.action_group->add(Gtk::Action::create("HelpAbout", "About"), [this] () {
     about.show();