See http://meta.wikimedia.org/wiki/2010_Wikimedia_design_and_feature_change/Feedback#REDIRECT_button for a vector.js-based solution.

Rephrasing summary to include other magic words, moved to new WikiEditor component.

A few ideas / possible solutions:

• If available through a messagekey, the appropiate message keys can be added to the registry of WikiEditor's ResourceLoader module
• If not available through messagekey we could create a startup-like module in WikiEditor that is created through PHP and populates an object (or an instance of mediaWiki.Map) with the localized versions of the magic words in the *content* language.

see also gerrit change 9053
I added a file dialog to the wikieditor, and for using the localised magic words ("thumb", "right", "left" etc...) I had to expose the magic words to javascript. On the way it also fix this bug

fix merged.