[Xerte-dev] Re: QRcode page for html5 version

Thu Nov 1 15:11:58 GMT 2012

Thanks John

I should have explained - I can get it working via rss_proxy but not without

I have the following:

var pastedurl = x_currentPageXML.getAttribute("url");

var shorturl = "http://is.gd/api.php?longurl="+pastedurl;

The value of pastedurl from the xml is http://nottingham.ac.uk/xerte

If I do alert(shorturl); I get
http://is.gd/api.php?longurl=http://nottingham.ac.uk/xerte

and if I visit http://is.gd/api.php?longurl=http://nottingham.ac.uk/xerte in
a browser window I get http://is.gd/dS1Cst so up to that point it's all
working fine

But I obviously need to read in the result of shorturl to display on the
page

I've tried the following:

jQuery.get(shorturl, function(data) {

    var myvar = data;

        alert(myvar);

    });

I don't get an alert

If I do 

$.ajax({

        url: 'http://localhost/test.txt',

        cache: false

    }).done(function( html ) {

                alert(html);

            });

I get the results of the text file in the alert

but if I do

$.ajax({

        url: shorturl,

        cache: false

    }).done(function( html ) {

                alert(html);

            });

I don't get an alert

If I then change shorturl to 

var shorturl =
"http://localhost/newxottrunktest/rss_proxy.php?rss=http://is.gd/api.php?lon
gurl="+pastedurl;

and 

$.ajax({

        url: shorturl,

        cache: false

    }).done(function( html ) {

                alert(html);

            });

It works and I get the shorturl

So I guess this is the same origin policy issue?

Any suggestions?

Cheers

Ron

From: xerte-dev-bounces at lists.nottingham.ac.uk
[mailto:xerte-dev-bounces at lists.nottingham.ac.uk] On Behalf Of Smith, John
Sent: 01 November 2012 14:32
To: For Xerte technical developers
Subject: [Xerte-dev] Re: QRcode page for html5 version

Post some code and I'll cast an eye over it.

Regards,

John Smith

Learning Technologist

School of Health & Life Sciences

Glasgow Caledonian University

From: xerte-dev-bounces at lists.nottingham.ac.uk
[mailto:xerte-dev-bounces at lists.nottingham.ac.uk] On Behalf Of Ron Mitchell
Sent: Thursday, November 01, 2012 2:33 PM
To: 'For Xerte technical developers'
Subject: [Xerte-dev] Re: QRcode page for html5 version

Thanks John

can't get that to work at the moment :-( will try again later.

Cheers

Ron

From: xerte-dev-bounces at lists.nottingham.ac.uk
[mailto:xerte-dev-bounces at lists.nottingham.ac.uk] On Behalf Of Smith, John
Sent: 01 November 2012 14:00
To: For Xerte technical developers
Subject: [Xerte-dev] Re: QRcode page for html5 version

Hi Ron,

To load data into the HTML5 player you'll want to do an ajax call. In its
simplest form:

$.ajax({

  url: "test.html",

  cache: false

}).done(function( html ) {

  // do something with html

});

If you try to do this cross server then you may run into the same origin
policy though (http://en.wikipedia.org/wiki/Same_origin_policy) 

The only way to do that is to do an ajax JSON with callback request (well
tehnically its not ajax) but the page must return a valid JSON object
wrapped in a function name, which may require creating a new file on a
remote server.

Take a look at how the delicious, rss and youtuberss ones work, it'll be
similar.

One think to think about though is that If you get it working in toolkits
using proxy_rss then it won't work if exported to run in a scorm player.

Regards,

John Smith

Learning Technologist

School of Health & Life Sciences

Glasgow Caledonian University

From: xerte-dev-bounces at lists.nottingham.ac.uk
[mailto:xerte-dev-bounces at lists.nottingham.ac.uk] On Behalf Of Ron Mitchell
Sent: Thursday, November 01, 2012 1:04 PM
To: 'For Xerte technical developers'
Subject: [Xerte-dev] QRcode page for html5 version

Hi Fay

like Jonathan I thought I'd have a go with the html5 stuff and at converting
one of the pages you haven't yet converted. As the QR code page was one I
put together I thought I'd have a go at that. I used your textGraphics.html
page as a starting point and have this working reasonably well as far as I
can tell but have attached a copy here rather than committing it for now.

The bit I haven't got working and haven't even tried yet is how to grab the
short url. In the flash version I used readfile() and in the case of xot use
it together with rssproxy e.g.

myurl.readFile(_level0.site_url + 'rss_proxy.php?rss=' +
"http://is.gd/api.php?longurl="+pastedurl);

my question is what's the equivalent of readFile for use with the xenith
code? e.g. to read and display the result of something like
http://is.gd/api.php?longurl=
<http://is.gd/api.php?longurl=%22http://nottingham.ac.uk/xerte>
"http://nottingham.ac.uk/xerte" which just displays the text on screen

Cheers

Ron

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SC021474

Winner: Times Higher Education's Widening Participation Initiative of the
Year 2009 and Herald Society's Education Initiative of the Year 2009.
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.html

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