Bring ReactFabricHostComponent back to react-native

jest.config.js

@@ -28,7 +28,8 @@ module.exports = {
   testPathIgnorePatterns: [
     '/node_modules/',
     '<rootDir>/packages/react-native/template',
-    '<rootDir>/packages/react-native/Libraries/Renderer',
+    '<rootDir>/packages/react-native/Libraries/Renderer/implementations',
+    '<rootDir>/packages/react-native/Libraries/Renderer/shims',
     '<rootDir>/packages/rn-tester/e2e',
   ],
   transformIgnorePatterns: ['node_modules/(?!@react-native/)'],

packages/react-native/Libraries/ReactNative/FabricUIManager.js

@@ -15,14 +15,13 @@ import type {
   MeasureInWindowOnSuccessCallback,
   MeasureLayoutOnSuccessCallback,
   MeasureOnSuccessCallback,
+  Node,
 } from '../Renderer/shims/ReactNativeTypes';
 import type {RootTag} from '../Types/RootTagTypes';
 
-// TODO: type these properly.
-export opaque type Node = {...};
-type NodeSet = Array<Node>;
-type NodeProps = {...};
-type InstanceHandle = {...};
+export type NodeSet = Array<Node>;
+export type NodeProps = {...};
+export type InstanceHandle = {...};
 export type Spec = {|
   +createNode: (
     reactTag: number,

packages/react-native/Libraries/ReactNative/__mocks__/FabricUIManager.js

@@ -0,0 +1,139 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict-local
+ * @format
+ * @oncall react_native
+ */
+
+import type {
+  LayoutAnimationConfig,
+  MeasureInWindowOnSuccessCallback,
+  MeasureLayoutOnSuccessCallback,
+  MeasureOnSuccessCallback,
+  Node,
+} from '../../Renderer/shims/ReactNativeTypes';
+import type {RootTag} from '../../Types/RootTagTypes';
+import type {
+  InstanceHandle,
+  NodeProps,
+  NodeSet,
+  Spec as FabricUIManager,
+} from '../FabricUIManager';
+
+type NodeMock = {
+  reactTag: number,
+  rootTag: RootTag,
+  props: NodeProps,
+  instanceHandle: InstanceHandle,
+  children: NodeSet,
+};
+
+function fromNode(node: Node): NodeMock {
+  // $FlowExpectedError[incompatible-return]
+  return node;
+}
+
+function toNode(node: NodeMock): Node {
+  // $FlowExpectedError[incompatible-return]
+  return node;
+}
+
+const FabricUIManagerMock: FabricUIManager = {
+  createNode: jest.fn(
+    (
+      reactTag: number,
+      viewName: string,
+      rootTag: RootTag,
+      props: NodeProps,
+      instanceHandle: InstanceHandle,
+    ): Node => {
+      return toNode({
+        reactTag,
+        rootTag,
+        props,
+        instanceHandle,
+        children: [],
+      });
+    },
+  ),
+  cloneNode: jest.fn((node: Node): Node => {
+    return toNode({...fromNode(node)});
+  }),
+  cloneNodeWithNewChildren: jest.fn((node: Node): Node => {
+    return toNode({...fromNode(node), children: []});
+  }),
+  cloneNodeWithNewProps: jest.fn((node: Node, newProps: NodeProps): Node => {
+    return toNode({...fromNode(node), props: newProps});
+  }),
+  cloneNodeWithNewChildrenAndProps: jest.fn(
+    (node: Node, newProps: NodeProps): Node => {
+      return toNode({...fromNode(node), children: [], props: newProps});
+    },
+  ),
+  createChildSet: jest.fn((rootTag: RootTag): NodeSet => {
+    return [];
+  }),
+  appendChild: jest.fn((parentNode: Node, child: Node): Node => {
+    return toNode({
+      ...fromNode(parentNode),
+      children: fromNode(parentNode).children.concat(child),
+    });
+  }),
+  appendChildToSet: jest.fn((childSet: NodeSet, child: Node): void => {
+    childSet.push(child);
+  }),
+  completeRoot: jest.fn((rootTag: RootTag, childSet: NodeSet): void => {}),
+  measure: jest.fn((node: Node, callback: MeasureOnSuccessCallback): void => {
+    callback(10, 10, 100, 100, 0, 0);
+  }),
+  measureInWindow: jest.fn(
+    (node: Node, callback: MeasureInWindowOnSuccessCallback): void => {
+      callback(10, 10, 100, 100);
+    },
+  ),
+  measureLayout: jest.fn(
+    (
+      node: Node,
+      relativeNode: Node,
+      onFail: () => void,
+      onSuccess: MeasureLayoutOnSuccessCallback,
+    ): void => {
+      onSuccess(1, 1, 100, 100);
+    },
+  ),
+  configureNextLayoutAnimation: jest.fn(
+    (
+      config: LayoutAnimationConfig,
+      callback: () => void, // check what is returned here
+      errorCallback: () => void,
+    ): void => {},
+  ),
+  sendAccessibilityEvent: jest.fn((node: Node, eventType: string): void => {}),
+  findShadowNodeByTag_DEPRECATED: jest.fn((reactTag: number): ?Node => {}),
+  getBoundingClientRect: jest.fn(
+    (
+      node: Node,
+    ): [
+      /* x:*/ number,
+      /* y:*/ number,
+      /* width:*/ number,
+      /* height:*/ number,
+    ] => {
+      return [1, 1, 100, 100];
+    },
+  ),
+  setNativeProps: jest.fn((node: Node, newProps: NodeProps): void => {}),
+  dispatchCommand: jest.fn(
+    (node: Node, commandName: string, args: Array<mixed>): void => {},
+  ),
+};
+
+global.nativeFabricUIManager = FabricUIManagerMock;
+
+export function getFabricUIManager(): ?FabricUIManager {
+  return FabricUIManagerMock;
+}

packages/react-native/Libraries/ReactPrivate/ReactNativePrivateInterface.js

@@ -17,14 +17,22 @@ import typeof ReactFiberErrorDialog from '../Core/ReactFiberErrorDialog';
 import typeof RCTEventEmitter from '../EventEmitter/RCTEventEmitter';
 import typeof CustomEvent from '../Events/CustomEvent';
 import typeof UIManager from '../ReactNative/UIManager';
+import typeof {
+  createPublicInstance,
+  getNativeTagFromPublicInstance,
+  getNodeFromPublicInstance,
+} from '../Renderer/public/ReactFabricPublicInstance';
+import typeof {
+  create as createAttributePayload,
+  diff as diffAttributePayloads,
+} from '../Renderer/public/ReactNativeAttributePayload';
 import typeof ReactNativeViewConfigRegistry from '../Renderer/shims/ReactNativeViewConfigRegistry';
 import typeof flattenStyle from '../StyleSheet/flattenStyle';
+import type {DangerouslyImpreciseStyleProp} from '../StyleSheet/StyleSheet';
 import typeof deepFreezeAndThrowOnMutationInDev from '../Utilities/deepFreezeAndThrowOnMutationInDev';
 import typeof deepDiffer from '../Utilities/differ/deepDiffer';
 import typeof Platform from '../Utilities/Platform';
 
-import {type DangerouslyImpreciseStyleProp} from '../StyleSheet/StyleSheet';
-
 // flowlint unsafe-getters-setters:off
 module.exports = {
   get BatchedBridge(): BatchedBridge {
@@ -48,6 +56,7 @@ module.exports = {
   get UIManager(): UIManager {
     return require('../ReactNative/UIManager');
   },
+  // TODO: Remove when React has migrated to `createAttributePayload` and `diffAttributePayloads`
   get deepDiffer(): deepDiffer {
     return require('../Utilities/differ/deepDiffer');
   },
@@ -56,6 +65,7 @@ module.exports = {
   > {
     return require('../Utilities/deepFreezeAndThrowOnMutationInDev');
   },
+  // TODO: Remove when React has migrated to `createAttributePayload` and `diffAttributePayloads`
   get flattenStyle(): flattenStyle<DangerouslyImpreciseStyleProp> {
     // $FlowFixMe[underconstrained-implicit-instantiation]
     return require('../StyleSheet/flattenStyle');
@@ -72,4 +82,22 @@ module.exports = {
   get CustomEvent(): CustomEvent {
     return require('../Events/CustomEvent').default;
   },
+  get createAttributePayload(): createAttributePayload {
+    return require('../Renderer/public/ReactNativeAttributePayload').create;
+  },
+  get diffAttributePayloads(): diffAttributePayloads {
+    return require('../Renderer/public/ReactNativeAttributePayload').diff;
+  },
+  get createPublicInstance(): createPublicInstance {
+    return require('../Renderer/public/ReactFabricPublicInstance')
+      .createPublicInstance;
+  },
+  get getNativeTagFromPublicInstance(): getNativeTagFromPublicInstance {
+    return require('../Renderer/public/ReactFabricPublicInstance')
+      .getNativeTagFromPublicInstance;
+  },
+  get getNodeFromPublicInstance(): getNodeFromPublicInstance {
+    return require('../Renderer/public/ReactFabricPublicInstance')
+      .getNodeFromPublicInstance;
+  },
 };