CODEWITHSUNDEEP
javalinuxeclipsebrowserswt
venu
venu

Reputation: 2979

Linux SWT Browser JavaScript.window.close() method not working

I have implemented sample swt browser application, it's working in windows operating system, but the same code I have tested in linux operating system, browser is opening but window.close() function is not working in linux. How to fix this issue?

Sample code

public class AdvancedBrowser
{
    public static void main(String[] args)
    {
        Display display = new Display();
        Shell shell = new Shell(display);

        Browser browser = new Browser(shell, SWT.NONE);
        browser.setBounds(5, 5, 600, 600);

        browser.addCloseWindowListener(new CloseWindowListener()
        {
            public void close(WindowEvent event)
            {
                System.out.println("closing");
                Browser browser = (Browser) event.widget;
                Shell shell = browser.getShell();
                shell.close();
            }
        });

        browser.setText("<a href=\"javascript:window.close();\">Close this Window</a>");
        shell.open();

        while (!shell.isDisposed())
        {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }

}

Upvotes: 0

Views: 636

Answers (1)

Baz
Baz

Reputation: 36894

Keep in mind that window.close() is not allowed in all browsers. Internet Explorer (which is used on Windows when you use SWT.NONE) allows scripts to close browser windows (although it may show a prompt).

Chrome and Firefox (tested on Windows and Linux) won't allow scripts to close the window.

Since you can't really use IE in SWT on Linux, I can't think of a way to make window.close() work.

However, you can call Java code from JavaScript within the SWT Browser:

private static Browser browser;

public static void main(String[] args)
{
    Display display = new Display();
    Shell shell = new Shell(display);

    browser = new Browser(shell, SWT.NONE);
    browser.setBounds(5, 5, 600, 600);

    browser.addListener(SWT.Close, new Listener()
    {
        @Override
        public void handleEvent(Event event)
        {
            System.out.println("closing");
            Browser browser = (Browser) event.widget;
            Shell shell = browser.getShell();
            shell.close();
        }
    });

    new CustomFunction(browser, "theJavaFunction");

    browser.setText("<a href=\"javascript:theJavaFunction();\">Close this Window</a>");
    shell.open();

    while (!shell.isDisposed())
    {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

private static class CustomFunction extends BrowserFunction
{
    CustomFunction(Browser browser, String name)
    {
        super(browser, name);
    }

    @Override
    public Object function(Object[] arguments)
    {
        System.out.println("theJavaFunction() called from javascript");
        Shell shell = browser.getShell();
        shell.close();
        return null;
    }
}

There's a nice tutorial by Vogella here.

Upvotes: 1

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