Get started
Loading...
Important Notice - Forums is archived

To simplify things and help our users to be more productive, we have archived the current forum and focus our efforts on helping developers on Stack Overflow. You can post new questions on Stack Overflow or join our Discord channel.

Product icon
TUTORIAL

Vaadin lets you build secure, UX-first PWAs entirely in Java.
Free ebook & tutorial.

Where to include a web components css file when integrating a third party w by Martin Vyšný, 1 week ago
Recent Posts
Vaadin Forum4. Other

Vaadin + 3rd party lib chat service

Lukas Adamek
6 years ago Sep 18, 2015 7:21pm

Hello,

how to add 3rd party live chat window into Vaadin app?

I would like to use Smartsupp.com. Usually Smartsupp integration consist in adding this part:

<!-- SmartSupp Live Chat script -->
<script type="text/javascript">
var _smartsupp = _smartsupp || {};
_smartsupp.key = '57a32598h68b294a6a4615f30hbd4c85a946bfa0';
window.smartsupp||(function(d) {
    var s,c,o=smartsupp=function(){ o._.push(arguments)};o._=;
    s=d.getElementsByTagName('script')[0];c=d.createElement('script');
    c.type='text/javascript';c.charset='utf-8';c.async=true;
    c.src='//www.smartsuppchat.com/loader.js?';s.parentNode.insertBefore(c,s);
})(document);
</script>

between <head> and </head>.

Is this possible in Vaadin?
I use Vaadin 7.5.6. and Vaadin Spring 1.0.0.beta1

Thanks.
 

Lukas Adamek
6 years ago Sep 19, 2015 9:55am

I found solution.

Create a custom servlet that extend the SpringVaadinServlet:

import javax.servlet.ServletException;

import com.vaadin.server.BootstrapFragmentResponse;
import com.vaadin.server.BootstrapListener;
import com.vaadin.server.BootstrapPageResponse;
import com.vaadin.server.ServiceException;
import com.vaadin.server.SessionInitEvent;
import com.vaadin.server.SessionInitListener;
import com.vaadin.spring.server.SpringVaadinServlet;

@SuppressWarnings("serial")
public class MyServlet extends SpringVaadinServlet {

    @Override
    protected final void servletInitialized() throws ServletException {
        super.servletInitialized();
        
        getService().addSessionInitListener(new SessionInitListener() {

            @Override
            public void sessionInit(SessionInitEvent sessionInitEvent) throws ServiceException {            
                sessionInitEvent.getSession().addBootstrapListener(new BootstrapListener() {

                    @Override
                    public void modifyBootstrapPage(final BootstrapPageResponse response) {
                        response
                            .getDocument()
                            .head()
                            .append(
                                "<!-- Start of Smartsupp Live Chat script -->" + //
                                "<script type=\"text/javascript\">" + //
                                "var _smartsupp = _smartsupp || {};" + //
                                "_smartsupp.key = \"57a32598f68b294a6a4615f300bd4c85a946bfa0\";" + //
                                "window.smartsupp||(function(d) {" + //
                                "    var s,c,o=smartsupp=function(){ o._.push(arguments)};o._=;" + //
                                "    s=d.getElementsByTagName('script')[0];c=d.createElement('script');" + //
                                "    c.type='text/javascript';c.charset='utf-8';c.async=true;" + //
                                "    c.src='//www.smartsuppchat.com/loader.js';s.parentNode.insertBefore(c,s);" + //
                                "})(document);" + //
                                "</script>" + //
                                "<!-- End of Smartsupp Live Chat script -->");
                    }

                    @Override
                    public void modifyBootstrapFragment(BootstrapFragmentResponse response) {
                    }
                });
            }
        });
    }

}

In child of UI change servlet:

@WebServlet(value = "/*", asyncSupported = true)
    public static class Servlet extends MyServlet {
        private static final long serialVersionUID = 1L;
    }