Note: Advice in this article will only work for JxBrowser 6. See the corresponding article for JxBrowser 7 here.
To handle pop-up windows in your Swing application you have two options:
1. Register default Swing pop-up handler implementation:
browser.setPopupHandler(new com.teamdev.jxbrowser.chromium.swing.DefaultPopupHandler());
2. Register your own implementation where you decide how exactly you would like to display a new pop-up window (e.g. in JFrame, JWindow, application tab):
browser.setPopupHandler(new PopupHandler() { public PopupContainer handlePopup(PopupParams params) { return new PopupContainer() { public void insertBrowser(final Browser browser, final Rectangle initialBounds) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { BrowserView browserView = new BrowserView(browser); browserView.setPreferredSize(initialBounds.getSize()); final JFrame frame = new JFrame("Popup"); frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE); frame.add(browserView, BorderLayout.CENTER); frame.pack(); frame.setLocation(initialBounds.getLocation()); frame.setVisible(true); frame.addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent e) { browser.dispose(); } }); browser.addDisposeListener(new DisposeListener<Browser>() { public void onDisposed(DisposeEvent<Browser> event) { frame.setVisible(false); } }); } }); } }; } });