Chinese input with bold mark active

[LouisMelo]

There has some issues when typing Chinese in editor:

• the focus is not at the end of text when typing
• when bold mark is active, typing Chinese will cause serious problem where text can't be selected

[qhwc2009]

I have a peoblem with Chinese Pinyin input method. First select the underline button, enter a few chinese words, then do not select the underline button, then enter Chinese, then the pinyin and Chinese characters will be all entered, and the pinyin is not selected.