Touch support in Abiword

Hi,
In the Sugar environment, we are doing work to support touch in our
user interfaces.
Thanks to Abiword port to gtk3, should be possible use touch to do
text selection in our Write activity too.
The proposed behaviour was detailed by Gary Martin here
http://wiki.sugarlabs.org/go/Design_Team/Sugar_Shell_Touch_Input#Text_editing
and is being implemented by Carlos Garnacho in gtk
http://git.gnome.org/browse/gtk+/log/?h=touch-text-selection
I have read,  Abiword was used in other mobile envs in the past,
maybe there are code useful already present in the code,
and I don't know how much code from gtk can be used in the Abiword canvas.
How do you think should be the best way to implement touch text
selection in Abiword?

Gonzalo Odiard
OLPC - SugarLabs