Browser information

General
1

I wanna use the example from
Sampler
for Browswer Information ,

as a Utiltiy class , something like this ,

public class BrowserInformation {

	
	private boolean populated = false;
	private WebApplicationContext context;
	private WebBrowser webBrowser;
	
	public BrowserInformation(){

         context = ((WebApplicationContext) getApplication()   .getContext());
         webBrowser = context.getBrowser();
	}

I tried the code from the sampler , but didn’t attach it to any compoments , so @attach method didn’t work.

Spring solution would be better.

2

That sample code is actually just a component which extends a VerticalLayout. To use this you then have to add this component to your Vaadin application. If you create a regular Vaadin application and add this sample code as a component to that, then you should be fine.

E.g. by providing a reference to an application along with the call to the utility class, I think you should get the context from that.

If you are trying to use this without a Vaadin application, then it’s not going to work. This since then you don’t have the context and the corresponding GWT widget which does that actual parsing from the browser: VBrowserDetails. Also the communication to the server side does not work. If you look at the source of VBrowserDetails, you might see how it works on the client side.

3

You could perhaps check out if you can use the
getApplicationContext(HttpSession session)
 method and then
getApplications()
 to get a reference without passing the application to the utility class. This is just a guess without testing.