03 November 2014, 21:34

Andrew hi.

I'm the maintainer of Embed.ly plugin (new version available at https://mahara.org/view/blocks.php?id=35826 BTW).

I've looked into your issue and discovered, that Embed.ly only supports "card" of Hackpad. That means it creates sort of a block/card that displays only the link to your Hackpad document.

As Kristina suggested you also cannot use iframes since the Hackpad embed code includes <script> tags.

The solution is to write custom filter for HTMLPurifier. You can find custom filter here: https://wiki.mahara.org/index.php/File:Htmlpurifier-hackpad-filter.zip

The zip file contain two files: Hackpad.php (this is the actual filter) and filters.xml (the file which lists all the available filters - this is the updated version of the file which also contains reference for Hackpad filter).

Installation instructions:

• Unzip the contents of the zip file to htdocs/lib/htmlpurifiercustom folder of your Mahara installation
• Then go to Administration => Extensions => HTML filters
• Click "Install" button

Usage instructions:

• On desired Mahara page create new Text block
• In block config window click left-most button of the first row of the editor to show all the buttons
• Then click right-most button in the last row, the one with <> icon - that will open new pop-up window
• Paste Hackpad embed code into that window.
• Save config settings and the page and voila!

HTH, Gregor

05 November 2014, 5:12

Many thanks for the custom Hackpad filter Gregor - another useful addtion to Mahara functionality!

And the Mahara community rocks too!