[news.eclipse.platform] Activate/Deactivate Save-Actions menu entry

["Christofer Dutz" <dutz@xxxxxxxxx>]

Hi,

I have created a custom Action used for doing the nesecary stuff for saving 
my editors changed content. THis is working fine. Now I would like to make 
everything perfekt and only to enable the menu entry if the active Editor is 
dirty. How is this done? I think I could register my Action as some sort of 
listener, but which one? When the action is created most of the Objects I 
want to register as listener don't exist yet. Any help is greatly 
appreciated.

Chris