Prechecker results: 4 errors / 2 warnings
http://integration.moodle.org/job/Precheck%20remote%20branch/11886/artifact/work/smurf.html

I've fixed the prechecker issues and bumped the version number accordingly - ready for review.

Jetha - I really like the intended functionality; however, I was not able to get the atto plugin to work.

I installed the atto and filter plugins together. I added the skethchfab button to the atto list of plugin in the files section so that I had:

files = image, media, managefiles, sketchfab

When I added a URL, being a Star Trek fan, I picked https://sketchfab.com/models/ec58cd67997a49e3acccd67d8236115e and waited for a while and saved the label. When I look at the html code all I see in the label is:

Enterprise

Am I missing a step or is something not working as expected? I created another label and added the iframe embed code from the image and it seemed to appear fine there. Any suggestions? Peace - Anthony

Anthony - thanks for taking a look! Could I get some more information about your environment, including the exact version of Moodle you're running?

If you could also open the Javascript console in Chrome's web inspector - right-click anywhere, click "Inspect Element", click the Console tab - and let me know what shows up in the console when attempting to embed, that'd also be a big help.

In the meantime I will try and reproduce the issue.

I can't repro on stable branches:
* 2.7.7+ (build 20150409)
* 2.8.5+ (build 20150409)
* 2.9dev (build 20150409)

So I am using FF (37.0.1) under Ubuntu 14.04, Moodle 2.8.5+ (20150326), PHP 5.5.9, Postgres 9.3.6 and this is the error that I noticed in the console:

SyntaxError: JSON.parse: unexpected end of data at line 1 column 1 of the JSON data
http://localhost/m28/theme/yui_combo.php?rollup/3.17.2/yui-moodlesimple.js&rollup/1428556750/mcore-debug.js
Line 24483

Peace - Anthony

http://localhost/m28/lib/editor/atto/plugins/sketchfab/api.php?modelid=ebe22b53d71940bdacdc9ddd55518155 is not getting a response from the server. I am going to see if I can try it on another server and see if I have better luck there. Peace - Anthony

About the only thing I can think of looking at api.php is that cURL might not be installed? As you're on Ubuntu, make sure that php5-curl is installed; for my part, I'll add it to the list of requirements.

Jetha - I have php5-curl installed - I was wondering if it might be related to the protocol (http instead of https). I was not able to test on one of my production sites as I had forgotten they did not want to use atto. Peace - Anthony

I was able to use the atto plugin with no issues. Calling api.php gives me expected json response. The code itself looks good and clean and I believe we can approve this now.

Anthony, these troubles with cURL might in fact also explain your troubles with the plugins directory's install button. Does running the curl from command line work for you?

Any update to Moode v3.x?

Thanks for sharing! http://anthaison.vn/sp/may-dua-vong-tu-dong-ts/

This would be great in Moodle 3.x, yes!
How difficult would it be to migrate this plugin?