Create counter_redux_redux.rs

examples/counter_redux_redux.rs

@@ -0,0 +1,60 @@
+use rui::*;
+
+// This example shows how to nest a redux inside another redux.
+
+#[derive(Clone)]
+enum Action {
+    Increment,
+    None,
+}
+
+struct AppState {
+    count: i32,
+}
+
+impl AppState {
+    fn new() -> Self {
+        AppState { count: 1 }
+    }
+}
+
+fn reduce(state: &mut AppState, action: &Action) {
+    match action {
+        Action::Increment => state.count += 1,
+        Action::None => (),
+    }
+}
+
+#[derive(Clone)]
+enum LocalAction {
+    Increment,
+}
+
+struct LocalState {
+    count: i32,
+}
+
+fn reduce_local(state: &mut LocalState, action: &LocalAction) -> Action {
+    match action {
+        LocalAction::Increment => {
+            state.count += 1;
+            if state.count == 5 {
+                state.count = 0;
+                Action::Increment
+            } else {
+                Action::None
+            }
+        }
+    }
+}
+
+fn main() {
+    rui(redux(AppState::new, reduce, |app_state| {
+        vstack((
+            format!("{}", app_state.count).padding(Auto),
+            redux(|| LocalState{ count: 0 }, reduce_local, |_| {
+                button_a("increment every 5 clicks", LocalAction::Increment)
+            }),
+        ))
+    }));
+}