[Mapbender-dev] Working with jQuery in Mapbenders mainframe... a testscript and a suggestion

Tue Nov 13 07:36:32 EST 2007

Hi Marc,

thanks for your test scripts.

I have an additional question: As the magic of jQuery lies in chaining, 
I wonder if expressions like these could be done with the frame environment:

$("<div>").addClass(currentWfsConf.g_label_id).text(currentWfsConf.g_label).appendTo("#wfsForm");

(Disclaimer: this is untestedcompletely  and I hope it's not all bad 
jQuery code)

Can you create new tags in the frame, like $("<div>", parent)?

Can you use the appendTo with a context parameter? 

I failed, but I may not yet have seen the light.

Thanks for your contribution,

Christoph

Marc Jansen schrieb:
> Hi devs,
>
> as discussed on monday there are certain things to be considered  when 
> you want to use jQuery. Please rebuild this testcript(s):
>
> File 1 (the parent | mainframe in Mapbender):
>
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
>  "http://www.w3.org/TR/html4/strict.dtd">
> <html>
>  <head>
>    <title>Test</title>
>    <script src="./tree21/jquery-1.2.1.pack.js" 
> type="text/javascript"></script>
>  </head>
>  <body>
>    <iframe src="test2.php">
>    </iframe>
>    <div id="parentdiv">I shall disappear first</div>
>  </body>
> </html>
>
>
> File 2 (the child | any frame embeded in Mapbenders mainframe):
>
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
>  "http://www.w3.org/TR/html4/strict.dtd">
> <html>
>  <head>
>    <title>Test</title>
>    <script type="text/javascript">
>    /**
>     * Map over parent's jquery to this frame's "$"/"jQuery".
>     * Keep the second parameter to work in other contexts.
>     *
>     * @todo check thoroughly.
>     * @author Marc Jansen <jansen at terrestris.de>
>     */
>    if (typeof $ == 'undefined' && typeof parent.$ != 'undefined' && 
> typeof jQuery == 'undefined' && typeof parent.jQuery != 'undefined') {
>        jQuery = function(param, context) {
>            return parent.jQuery(param, context || window.document);
>        };
>        $ = jQuery;
>    }
>    // a test setting
>    window.setTimeout(function() {
>        alert('working in parent');
>        $('#parentdiv', parent).each(function() {
>            alert(this);
>        }).hide();
>        alert('working in child');
>        $('#iframediv').each( function() {
>            alert(this);
>        }).hide();
>        alert('has everything disappeared?');
>     }, 3000 );
>    </script>
>    </head>
>  <body>
>    <div id="iframediv">I shall disappear later</div>
>  </body>
> </html>
>
> Try to rebuild the two files and you'll understand what is happening 
> here. Needs to be checked in detail!
>
> I suggest to test this further and to use this:
>    /**
>     * Map over parent's jquery to this frame's "$"/"jQuery".
>     * Keep the second parameter to work in other contexts.
>     *
>     * @todo check thoroughly.
>     * @author Marc Jansen <jansen at terrestris.de>
>     */
>    if (typeof $ == 'undefined' && typeof parent.$ != 'undefined' && 
> typeof jQuery == 'undefined' && typeof parent.jQuery != 'undefined') {
>        jQuery = function(param, context) {
>            return parent.jQuery(param, context || window.document);
>        };
>        $ = jQuery;
>    }
> when you want to use jQuery.
>
> Bye,
>
> -- Marc
>
> _______________________________________________
> Mapbender_dev mailing list
> Mapbender_dev at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapbender_dev

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