Vaadin Grid middle mouse button

This feature is already included in vaadin-grid (in Vaadin 10) and will not work in Vaadin 8.

For Vaadin 8, you can use some client-side extension to intercept events, or you can ComponentRendereradd a Panelto each component using a (this works, but is not ideal because it reduces performance ):

grid.addColumn(item->{
    Panel p = new Panel(item.getName());
    p.setStyleName(ValoTheme.PANEL_BORDERLESS);
    p.addClickListener(ev->{
        System.out.println(ev.getButtonName());             
    });
    return p;
}).setRenderer(new ComponentRenderer());

On the other hand, client-side extensions allow to listen to javascript events (for example MouseEvent) and fire server events in response . Creating an extension is a very complex topic (as it uses parts of the API that are usually hidden from the developer), but it allows direct access to the rendered DOM that would otherwise be impossible.

The following resources in the documentation may give you a starting point: Creating Component Extensions (describes only simple extensions using Java code) and Integrating JavaScript Components and Extensions (shows how to add native JavaScript code to extensions) .