push.clj

(ns sample.navigation
  "Port of https://docs.flutter.dev/cookbook/navigation/navigation-basics"
  (:require
   ["package:flutter/material.dart" :as m]
   [cljd.flutter.alpha :as f]))

(def second-route
  (f/widget
   :inherit [m/Navigator]
   (m/Scaffold
    .appBar (m/AppBar .title (m/Text "Second Route"))
    .body
    (f/nest
     m/Center
     (m/ElevatedButton .onPressed #(.pop navigator))
     (m/Text "Go back!")))))

(defn goto [ctx nav]
  (.push
   nav
   ctx
   (#/(m/MaterialPageRoute Object) .builder (fn [_] second-route)))
  nil)

(def first-route
  (f/widget
   :context ctx
   :inherit [m/Navigator]
   (m/Scaffold
    .appBar (m/AppBar .title (m/Text "First Route"))
    .body
    (f/nest
     m/Center
     (m/ElevatedButton
      .onPressed (fn [] (goto ctx navigator)))
     (m/Text "Open route")))))

(defn main []
  (m/runApp
   (m/MaterialApp
    .title "Navigation Basics"
    .home first-route)))