Javascript cross window interaction

Question

I have this very simple Javascript to write on a text area when the link is clicked:

<head>
<script language="javascript" type="text/javascript">
    function addtext(text) {document.form.textarea.value = document.form.textarea.value+= text;}
    </script>
</head>

<body>
<form action="" method="" name="form">
   <textarea name="textarea" rows="" cols="" wrap="wrap"></textarea>
</form>
<a href="javascript:addtext('q');">q</a>
</body>

Now I want to up the ante.

What I want to do is have the form in another another window, and that when I click the link, I writes to a textarea in another window.

I'm not necessarily asking for the code because I realize this might be quite complicated.

The question would be where to start, because I haven´t got a clue!! (when I Google cross window or cross domain interaction with Javascript I don't really get anything useful).

So any help I can get, libraries, plugins or whatever might guide me in the right direction is more than appreciated.

GôTô · Accepted Answer · 2010-10-16 20:47:37Z

6

Ok, I wrote you a sample you can check at http://jsfiddle.net/zzdAL/

$(document).ready(function()
                  {
                      popup = window.open("http://fiddle.jshell.net");
                      $("#input1").click(function() {
                          try {
                                popup.document.window.alert(1);
                          }
                          catch (e) { alert(e.message); }
                      });
                  }
                 );

It only runs an alert on the popup, but you can do whatever you want with the popup, assuming you have the necessary rights (needs to be the same domain I believe).

The most simple is to write a function in your popup and call it from the opener.

answered Oct 16, 2010 at 20:47

GôTô

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1 Comment

Trufa Over a year ago

That is awesome!! Thank yo so much!! BTW If you can think of any documentation that can come in handy, it would be appreciated, thanks again, great help!

Gilles Quénot · Accepted Answer · 2010-10-16 20:38:04Z

-1

Take a look to greasemonkey, it's an addon for your browser. You can choose on which page(s) the script will works.

http://wiki.greasespot.net/Main_Page

answered Oct 16, 2010 at 20:38

Gilles Quénot

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1 Comment

Trufa Over a year ago

Sorry but I dont see how this helps me? Where should I start with this?

dy_ · Accepted Answer · 2011-11-19 03:40:33Z

-1

Probably it's too late, but here is an example of interaction: window interaction

answered Nov 19, 2011 at 3:40

dy_

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