fix(android): respect pointer events on gesture root views

Author: nnphong1904

apps/basic-example/src/App.tsx

@@ -5,6 +5,7 @@ import { GestureHandlerRootView } from 'react-native-gesture-handler';
 import ContentsButton from './ContentsButton';
 import NativeDetector from './NativeDetector';
 import Navigator from './Navigator';
+import PointerEventsRepro from './PointerEventsRepro';
 import RuntimeDecoration from './RuntimeDecoration';
 import Text from './Text';
 
@@ -25,6 +26,10 @@ const EXAMPLES = [
     name: 'Contents Button',
     component: ContentsButton,
   },
+  {
+    name: 'Root Pointer Events',
+    component: PointerEventsRepro,
+  },
 ];
 
 const Stack = Navigator.create();

apps/basic-example/src/PointerEventsRepro.tsx

@@ -0,0 +1,102 @@
+import * as React from 'react';
+import {
+  Button,
+  Pressable,
+  StyleSheet,
+  Text,
+  View,
+  type ViewProps,
+} from 'react-native';
+import {
+  GestureDetector,
+  GestureHandlerRootView,
+  useTapGesture,
+} from 'react-native-gesture-handler';
+
+export default function PointerEventsRepro() {
+  const [mode, setMode] =
+    React.useState<ViewProps['pointerEvents']>('box-none');
+  const [plain, setPlain] = React.useState(false);
+  const [background, setBackground] = React.useState(0);
+  const [child, setChild] = React.useState(0);
+  const [gesture, setGesture] = React.useState(0);
+  const tap = useTapGesture({
+    runOnJS: true,
+    onActivate: () => setGesture((n) => n + 1),
+  });
+  const Wrapper = plain ? View : GestureHandlerRootView;
+  return (
+    <GestureHandlerRootView style={styles.screen}>
+      <Text>Root pointerEvents regression</Text>
+      <Text testID="status">
+        {plain ? 'View' : 'Root'} / {mode ?? 'unset'} / background {background}{' '}
+        / child {child} / gesture {gesture}
+      </Text>
+      <Button
+        title={plain ? 'Use Root' : 'Use View'}
+        onPress={() => setPlain(!plain)}
+      />
+      <View style={styles.controls}>
+        {(['auto', 'none', 'box-only', 'box-none', undefined] as const).map(
+          (value) => (
+            <Button
+              key={value ?? 'unset'}
+              title={value ?? 'unset'}
+              onPress={() => setMode(value)}
+            />
+          )
+        )}
+      </View>
+      <Button
+        title="Reset counts"
+        onPress={() => {
+          setBackground(0);
+          setChild(0);
+          setGesture(0);
+        }}
+      />
+      <View style={styles.area}>
+        <Pressable
+          accessibilityLabel="Background"
+          style={StyleSheet.absoluteFill}
+          onPress={() => setBackground((n) => n + 1)}>
+          <Text style={{ marginTop: 250 }}>Background</Text>
+        </Pressable>
+        <Wrapper pointerEvents={mode} style={styles.overlay}>
+          <View pointerEvents="none" style={styles.side}>
+            <Text>Empty side</Text>
+          </View>
+          <Pressable
+            accessibilityLabel="Child press"
+            style={styles.child}
+            onPress={() => setChild((n) => n + 1)}>
+            <Text>Child press</Text>
+          </Pressable>
+          <GestureDetector gesture={tap}>
+            <View
+              accessible
+              accessibilityLabel="Child gesture"
+              style={styles.child}>
+              <Text>Child gesture</Text>
+            </View>
+          </GestureDetector>
+        </Wrapper>
+      </View>
+    </GestureHandlerRootView>
+  );
+}
+const styles = StyleSheet.create({
+  screen: { flex: 1, paddingTop: 48, backgroundColor: 'white' },
+  controls: { flexDirection: 'row', flexWrap: 'wrap' },
+  area: { height: 350, margin: 16, backgroundColor: '#ddf' },
+  overlay: { height: 230, backgroundColor: '#fdd8', alignItems: 'center' },
+  side: { position: 'absolute', left: 4, top: 90, width: 70 },
+  child: {
+    width: 160,
+    height: 75,
+    margin: 12,
+    alignItems: 'center',
+    justifyContent: 'center',
+    backgroundColor: '#9d9',
+  },
+});

packages/react-native-gesture-handler/android/src/main/java/com/swmansion/gesturehandler/react/RNGestureHandlerRootViewManager.kt

@@ -1,6 +1,7 @@
 package com.swmansion.gesturehandler.react
 
 import com.facebook.react.module.annotations.ReactModule
+import com.facebook.react.uimanager.PointerEvents.Companion.parsePointerEvents
 import com.facebook.react.uimanager.ThemedReactContext
 import com.facebook.react.uimanager.ViewGroupManager
 import com.facebook.react.uimanager.ViewManagerDelegate
@@ -39,6 +40,11 @@ class RNGestureHandlerRootViewManager :
     view.setModuleId(value)
   }
 
+  @ReactProp(name = "pointerEvents")
+  override fun setPointerEvents(view: RNGestureHandlerRootView, pointerEventsStr: String?) {
+    view.pointerEvents = parsePointerEvents(pointerEventsStr)
+  }
+
   @ReactProp(name = "unstable_forceActive")
   override fun setUnstable_forceActive(view: RNGestureHandlerRootView, active: Boolean) {
     view.setUnstableForceActive(active)

packages/react-native-gesture-handler/src/specs/RNGestureHandlerRootViewNativeComponent.ts

@@ -6,7 +6,12 @@ export interface RootViewNativeProps extends ViewProps {
   unstable_forceActive?: boolean;
 }
 
+// @ts-expect-error WithDefault adds null for codegen, unlike ViewProps.pointerEvents.
 interface NativeProps extends ViewProps {
+  pointerEvents?: CodegenTypes.WithDefault<
+    'box-none' | 'none' | 'box-only' | 'auto',
+    'auto'
+  >;
   moduleId?: CodegenTypes.WithDefault<CodegenTypes.Int32, -1>;
   unstable_forceActive?: boolean;
 }