window.open and searchpopop

Question

Hi all,

We are use window.open for open popup. But then we want find it and close. Unfortunately we can`t save this popup handle to variable.

P.S. How get list of all windows?

Answer 1

This should work:

var wh = window.open(..)

wh is the handle to the popup window.

Answer 2

If you have control over the page that loads the script, you could do something like this. Warning: this is a really scary and generally bad thing to do:

<script>
  var windowHandles = {};
  (function() {
    var realOpen = window.open;
    window.open = function(url, name, features) {
      windowHandles[name] = realOpen(url, name, features);
    };
  })();
</script>

That will build an object (windowHandles) in which the handles for each opened window will be saved.

Put that script in your page before the script that opens the other window is loaded.

Answer 3

I don't like this solution. Fixing the script to give you a handle would be a better bet.

<button onclick="go()">Go</button>
<button onclick="stop()">Stop</button>

<script type="text/javascript">

    function go() {
            // Existing function. It opens a window with a name.
            window.open('http://google.com', 'test', 'width=300,height=300');
    }

    var foo;

    function stop() {
            // Open a new window with the same name. It replaces the existing window.
            // Since it opens a local document, the Same Origin Policy does not apply.
            // ... and we can capture its return value to grab a handle on an existing 
            // window
            foo = window.open('black-local-page.html', 'test',  'width=300,height=300');
            // Give the local page time to load
            setTimeout(continue_stopping, 500);
    }

    function continue_stopping() {
            // Call window.open() on the window
            foo.close();
    }

</script>

Answer 4

I found not perfect solution, but it work.

win = window.open(null, 'Window1');

This code search search window with this name and return handler, but if window is closed it open empty popup. I Think this is temporary solution