Cursor Support

[bachorp]

It would be great to support cursor control to enable components such as TextInput to use a proper cursor understood by the terminal (TextInput currently uses View(background_color) instead).

[ccbrown]

Could you elaborate more on how this would work? Or do you know of any TUIs with the behavior you're suggesting?

[bachorp]

The application would track the supposed cursor position and update the terminal using appropriate ANSI sequences. A naive implementation could use a simple crossterm::cursor::MoveTo. However, there are more elaborate approaches using relative movement and anchoring which seem to be necessary for consistent results especially in inline (non-alt) mode. Examples would be Ink's useCursor()/log-update.ts or Bubbletea's View.Cursor/ultraviolet/terminal_renderer.go.