Give inactive routes in stack opportunity to handle action (#4064)

examples/NavigationPlayground/js/InactiveStack.js

@@ -0,0 +1,96 @@
+import React from 'react';
+import { Button, Text, StatusBar, View, StyleSheet } from 'react-native';
+import {
+  SafeAreaView,
+  createStackNavigator,
+  createSwitchNavigator,
+  NavigationActions,
+} from 'react-navigation';
+
+const runSubRoutes = navigation => {
+  navigation.dispatch(NavigationActions.navigate({ routeName: 'First2' }));
+  navigation.dispatch(NavigationActions.navigate({ routeName: 'Second2' }));
+  navigation.dispatch(NavigationActions.navigate({ routeName: 'First2' }));
+};
+
+const runSubRoutesWithIntermediate = navigation => {
+  navigation.dispatch(toFirst1);
+  navigation.dispatch(toSecond2);
+  navigation.dispatch(toFirst);
+  navigation.dispatch(toFirst2);
+};
+
+const runSubAction = navigation => {
+  navigation.dispatch(toFirst2);
+  navigation.dispatch(toSecond2);
+  navigation.dispatch(toFirstChild1);
+};
+
+const DummyScreen = ({ routeName, navigation, style }) => {
+  return (
+    <SafeAreaView
+      style={[
+        StyleSheet.absoluteFill,
+        {
+          alignItems: 'center',
+          justifyContent: 'center',
+          backgroundColor: 'white',
+        },
+        style,
+      ]}
+    >
+      <Text style={{ fontWeight: '800' }}>
+        {routeName}({navigation.state.key})
+      </Text>
+      <View>
+        <Button title="back" onPress={() => navigation.goBack()} />
+        <Button title="dismiss" onPress={() => navigation.dismiss()} />
+        <Button
+          title="between sub-routes"
+          onPress={() => runSubRoutes(navigation)}
+        />
+        <Button
+          title="between sub-routes (with intermediate)"
+          onPress={() => runSubRoutesWithIntermediate(navigation)}
+        />
+
+        <Button
+          title="with sub-action"
+          onPress={() => runSubAction(navigation)}
+        />
+      </View>
+      <StatusBar barStyle="default" />
+    </SafeAreaView>
+  );
+};
+
+const createDummyScreen = routeName => {
+  const BoundDummyScreen = props => DummyScreen({ ...props, routeName });
+  return BoundDummyScreen;
+};
+
+const toFirst = NavigationActions.navigate({ routeName: 'First' });
+const toFirst1 = NavigationActions.navigate({ routeName: 'First1' });
+const toFirst2 = NavigationActions.navigate({ routeName: 'First2' });
+const toSecond2 = NavigationActions.navigate({ routeName: 'Second2' });
+const toFirstChild1 = NavigationActions.navigate({
+  routeName: 'First',
+  action: NavigationActions.navigate({ routeName: 'First1' }),
+});
+
+export default createStackNavigator(
+  {
+    Other: createDummyScreen('Leaf'),
+    First: createStackNavigator({
+      First1: createDummyScreen('First1'),
+      First2: createDummyScreen('First2'),
+    }),
+    Second: createStackNavigator({
+      Second1: createDummyScreen('Second1'),
+      Second2: createDummyScreen('Second2'),
+    }),
+  },
+  {
+    headerMode: 'none',
+  }
+);