vakata/jstree — pull request #481 by matiaslarsson (2014-01-17 13:22:35+00:00)
Title: Trigger a before_open.jstree event before opening a node.

I do some naughty DOM manipulation when the user hovers over a node. I have to clean it up before another node is expanded (by search or manually) and the open_node.jstree event was triggered too late so I added a before_open.jstree event.