In my RCP application is editor, almost like in Eclipse. Class editor extends from org.eclipse.ui.texteditor.AbstractTextEditor and it is added in extension in plugin.xml -> org.eclipse.ui.editors. I would like to do view which contains open in editor files. The question is, how do I get a list of all open files?
Screen shot:

I haven’t tested it, but you should be able to get it starting from the PlatformUI class.