tinymce/tinymce — pull request #130 by dancrumb (2012-05-17 23:21:42+00:00)
Title: Added onBeforeAdd Event to UndoManager

We needed to be able to normalize the content of the TinyMCE editor, before Undo levels were added. Since we have a normalization process, it has to take place before UndoManager.add does its comparison of the current and previous level.

This event allows us to do that. I think others would find it useful.