osx - What Cocoa control to use for picking a directory -

i'm writing os x application generates lots of files , saves them in user-selected directory. want use directory dropdown similar find in transmission. control that?

this nspathcontrol style pop up.

edit: i experimented , did tweak/hacking

this contains push button these settings : no title, unchecked refuses first responder , unchecked enabled. nspath control drawn on top of this. pop button.

find working model here.