I'm looking for a best practice approach to achieving a plugin in TinyMCE, to implement insertion of the HTML5 element <figure>, along one or more child <img>s, and a <figcaption>.
Whilst the HTML5 spec seems to allow for other figure types, i.e. other than <img>, that's all we're concerned with at the moment.
Ideally, the solution would be plugin based and portable.
FYI we're using TinyMCE w/ Django.
You will need to use the extended_valid_elements setting to configure your elements as valid elements and define valid children.