In-place operations for sidebar items

It should be possible to run inline actions on the sidebar items.
The current implementation is counter-intuitive and not usable since it forces the user to switch context (and focus).
When renaming, the user has to realize that a new bar has appeared at the bottom of the interface.
When adding a new file/folder the behaviour is even worse since it opens a new file and the focus is moved there so the user doesn't know where the new item belongs to.
For a proper implementation please see Gedit's File Browser Pane.