Implement keyboard textbox

[GoogleCodeExporter]

This is truly one hard bugger.

Basically, replace regular textbox with a "smart" keyboard shortcut-
detecting box that, at the current caret position, puts "{CTRL+ALT+" 
whenever you press those buttons.

Issues
1. How to block alt key from screwing up textbox?
2. Accurately detect ctrl, alt, shift, win
3. Shift behavior?
4. Edit keys behavior? Up/down/left/right/home/end/insert/delete. They do 
their expect behavior, except when a modifer key is pressed; they end up 
becoming a keyboard shortcut

Usability testing would be SO good for this.

Original issue reported on code.google.com by mar.mar...@gmail.com on 17 Apr 2010 at 4:53

[GoogleCodeExporter]

Original comment by mar.mar...@gmail.com on 10 May 2010 at 10:36

• Changed state: Fixed