by Liza Daly
I re-recorded my talk at IDPF Digital Book as a video. Getting the audio synced properly was no fun so I apologize for a few production issues.
Here’s the executive summary of the talk:
- You can add interactivity to an EPUB book using either the <object> or <script> elements.
- Currently object has the best support, especially using Flash in Adobe Digital Editions.
- The script element is specifically discouraged (though not disallowed) in EPUB 2.0.1, and no major reading system supports it. However, all browsers do!
- The primary advantage of interactivity using script is that the content creator has the ability to manipulate every part of the ebook: all of the text, its layout, even potentially the user interface of the reading system itself. With object you can apply interactivity to just an arbitrary rectangle.
- There is a great deal of interesting animation and even interactivity possible using CSS3, which is allowed in EPUB 2.0.1 and is supported by iBooks and other WebKit-based ereaders.
- The primary blocker for extremely rich interactive ebooks is ereader support, but by embedding browser-based reading systems like Monocle, content creators can distribute such ebooks today.
I’ll also be posting some of the example files used in the tutorial in a forthcoming post.