As of today, touch/click on "widget.Editor" doesn't pop-up the software-keyboard on Windows 10 (tablet-mode).
That seems a little bit harder to support, and it might need to open the
C:\Program Files\Common Files\microsoft shared\ink\TabTip.exe. But, also it should detect either the user is running on desktop/laptop or tablet mode.
Also, if we open the keyboard manually (on Windows bar) doesn't resize the Gio window.
Tested on Dell Inspiron 7348.