I’ve added some stuff to thebluefish’s integration of libRocket, such as (basic) input support – it’s not complete, not all keys are supported, e.g., but you can now type in elements and click buttons, etc. Basic event support has been added (libRocket -> Urho3D), but a lot of work still needs to be done.
You can find it at https://github.com/SirNate0/libRocket-Urho3D, but I don’t promise to maintain any backwards compatibility as I update it . You should also note that I’ve focused on the 2D document, not the 3D one, so there may be (serious) bugs in that one. I may eventually try for a full integration to Urho, like a separate UI subsystem, but that remains to be seen…