private void initListeners() {
    myConnection = myProject.getMessageBus().connect();
    myConnection.subscribe(FileEditorManagerListener.FILE_EDITOR_MANAGER, new FileEditorManagerListener() {
      @Override
      public void fileOpened(@NotNull FileEditorManager source, @NotNull VirtualFile file) {
        bindToDesigner(getActiveDesigner());
      }

      @Override
      public void fileClosed(@NotNull FileEditorManager source, @NotNull VirtualFile file) {
        ApplicationManager.getApplication().invokeLater(() -> bindToDesigner(getActiveDesigner()));
      }

      @Override
      public void selectionChanged(@NotNull FileEditorManagerEvent event) {
        bindToDesigner(getDesigner(event.getNewEditor()));
      }
    });
  }
private void initListeners()