Support key/mouse up events for linux.

[wendajiang]

Describe the solution you'd like for example, I want do something when I press up a key(e.g. 'h')

Describe alternatives you've considered in any different KeyCode into KeyCodeDown and KeyCodeUp if it needn't backforward compatible

[TimonPost]

Maybe something as described here could be implemented: https://www.win.tue.nl/~aeb/linux/kbd/scancodes-1.html#

And just a simple boolean to indicate a press/release in KeyEvent: https://github.com/crossterm-rs/crossterm/blob/master/src/event.rs#L390

[sigmaSd]

https://blog.robertelder.org/detect-keyup-event-linux-terminal/

Detecting a key release in linux usually require root (unless you rely on x server) , if the user is in the input group he can read it with no more previlage but I dont know which distros do his

[dataO1]

It would be really nice to have the option of detecting keyup events, even if that means the user has to be in the input group or have sudo rights. A lot of cli applications require sudo anyway. If the user is neither sudo, nor in the input group, the event handler could just return a Error in the Result.

[TimonPost]

Renaming the issue, since windows does mouse-up event support.

[sigmaSd]

Linux already supported mouse up/down events, its the keys support that is missing.

This commit https://github.com/crossterm-rs/crossterm/commit/60e51be726f00b8df9c79b72a55d6b9f2a40a507 fixes this by using the kitty protocol. (but you need a supported terminal)

[TimonPost]

Gonna close this in favor of #695