WowAce

WoW's KeyBindings now supports controller buttons but the KeyBind widget doesn't seem to recognise them.

Some users with Controllers have the following file - I have asked for a copy of the file rather than this screenshot provided.

They are able to keybind to this and it shows as the keybind on the widget afterwards but they have to manually exit wow, edit the WTF lua file these are stored in outside the game and reload wow as the widget doesn't seem to recognise these directly.

My character lua file 

They bound two entries.  Changed the 2 below to PADRTRIGGER and it works as a keybind for them.

I got this to work by adding this to my Ace Frame:

myAceFrame.frame:EnableGamePadButton(true) 

adding this to my own verison of a AceGUIWidget-keybinding.lua at line 203

button:SetScript("OnGamePadButtonDown", Keybinding_OnKeyDown)