Module scroll 

Mouse-wheel handling for the embedded terminal.

On the normal screen a wheel notch scrolls the local vt100 scrollback. On the alternate screen (vim, less, htop, …) there is no scrollback, so the notch is forwarded to the foreground application instead — as native mouse-wheel sequences when it requested mouse reporting, or as cursor-key presses otherwise (xterm “alternate scroll” behaviour).

Enums

ScrollAction

Resolved effect of a single mouse-wheel notch.

Functions

resolve_scroll

Decides what a wheel delta should do given the foreground app’s state.