Questions about viewport

[mistakenelf]

• Maybe im not going about this the correct way but im working on a file manager just for fun here https://github.com/knipferrc/fm. Trying to figure out how to implement the viewport and its somewhat working but I have a couple issues.

1. ) Whenever I check if m.ready inside the view, it just sits in a loading state infinitely. Maybe im not initializing something correctly?

case tea.WindowSizeMsg:
		if !m.ready {
			m.screenwidth = msg.Width
			m.screenheight = msg.Height
			m.viewport = viewport.Model{
				Width:  msg.Width,
				Height: msg.Height - 1,
			}
			m.viewport.YPosition = 0
			m.ready = true
		} else {
			m.screenwidth = msg.Width
			m.screenheight = msg.Height
			m.viewport.Width = msg.Width
			m.viewport.Height = msg.Height - 1
		}

2. ) Whenever I call viewport.LineUp or LineDown it seems to take no effect on the viewport? Attempting to get it so that you can scroll through your directly tree when the height goes outside the terminal

Any help is much appreciated