Popup Print Window in Vaadin 7 with Table - vaadin

Question

I am new on Vaadin.
How to pass Table component to new popup screen in Vaadin 7? Assume I already created table using com.vaadin.ui.Table.
Table aaa = new Table();
Currently Vaadin tutorial just show how to create print popup without pass component/data.
Based on below code
public static class PrintUI extends UI {
#Override
protected void init(VaadinRequest request) {
// Have some content to print
setContent(new Label(
"<h1>Here's some dynamic content</h1>\n" +
"<p>This is to be printed.</p>",
ContentMode.HTML));
// Print automatically when the window opens
JavaScript.getCurrent().execute(
"setTimeout(function() {" +
" print(); self.close();}, 0);");
}
}
...
// Create an opener extension
BrowserWindowOpener opener =
new BrowserWindowOpener(PrintUI.class);
opener.setFeatures("height=200,width=400,resizable");
// A button to open the printer-friendly page.
Button print = new Button("Click to Print");
opener.extend(print);
Appreciated if someone could show me how to pass Table aaa into PrintUI class.

Answer 1

Window window = new Window("my test table popup");
window.setContent(table);
window.setModal(true);
getUI().addWindow(window);

Answer 2

The only way that I have found to pass objects to the UI class in popup window is to store them in session:
Table table = new Table();
VaadinSession.getCurrent().setAttribute("table", table);
In the popup window:
Table t = (Table) VaadinSession.getCurrent().getAttribute("table");

Answer 3

You can also initialize your Table in your PrintUI class. If you need to initialize a specific Table instance, you can pass, let's say, your table id parameter to the UI via .getParameter("idTable") (which, in the end, works as adding a GET parameter to the URL) and then retrieve it in your PrintUI's init() method via the request parameter with .getParameter("idTable").