replace

Documentation

Overview

Package replace demonstrates screen.Replace — atomic top-of-stack swap.

Two screens, each with mutable state the user can see change:

cityList: a filterable list of cities. The filter and cursor are state.
          Press r → Replace with a fresh cityList. Filter clears, cursor
          jumps to top, breadcrumb depth stays at 1 (no flicker).

cityDetail: pushed via enter on the list. Holds a visit counter that
            bumps on `+`. Press r → Replace with a fresh cityDetail for
            the same city. Counter resets to 0; the cityList beneath
            stays put — its OnEnter does NOT fire (which is the whole
            point: pop+push would fire it on the parent).

Compare against pop+push, which would (a) flicker visibly between frames and (b) call OnEnter on the parent that briefly becomes the top, often retriggering side effects (refetch, scroll-to-cursor, …).

Index

• func New(t theme.Theme) screen.Screen

Functions

func New

func New(t theme.Theme) screen.Screen

New returns the demo's root screen.