Improve support for input methods under Unity

Registered by ZhengPeng Hou

NUX now is lacking the flexibility of input method support, only ibus can be used, we need make nux support XIM or native immodule support, then users who use NUX based application can choose whichever input method based on their decision.


Why don't us fix problems like the following first?
It is there since 11.10.

Providing a framework that works out of the box is much better than having multiple frameworks that all require unfriendly configuration.


Work Items