Expose less internals for TestUtils (facebook#13539)

* Expose less internals for TestUtils

* Keep EventPluginHub for www

* Reorder to simplify

Author: gaearon

packages/events/__tests__/ResponderEventPlugin-test.internal.js

@@ -393,11 +393,8 @@ describe('ResponderEventPlugin', () => {
   beforeEach(() => {
     jest.resetModules();
 
-    const ReactDOM = require('react-dom');
     const ReactDOMUnstableNativeDependencies = require('react-dom/unstable-native-dependencies');
-    EventPluginHub =
-      ReactDOM.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED
-        .EventPluginHub;
+    EventPluginHub = require('events/EventPluginHub');
     const injectComponentTree =
       ReactDOMUnstableNativeDependencies.injectComponentTree;
     ResponderEventPlugin =

packages/react-dom/src/client/ReactDOM.js

@@ -739,14 +739,20 @@ const ReactDOM: Object = {
   unstable_flushControlled: DOMRenderer.flushControlled,
 
   __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: {
-    // For TapEventPlugin which is popular in open source
-    EventPluginHub,
-    // Used by test-utils
-    EventPluginRegistry,
-    EventPropagators,
-    ReactControlledComponent,
-    ReactDOMComponentTree,
-    ReactDOMEventListener,
+    // Keep in sync with ReactDOMUnstableNativeDependencies.js
+    // and ReactTestUtils.js. This is an array for better minification.
+    Events: [
+      ReactDOMComponentTree.getInstanceFromNode,
+      ReactDOMComponentTree.getNodeFromInstance,
+      ReactDOMComponentTree.getFiberCurrentPropsFromNode,
+      EventPluginRegistry.eventNameDispatchConfigs,
+      EventPropagators.accumulateTwoPhaseDispatches,
+      EventPropagators.accumulateDirectDispatches,
+      ReactControlledComponent.enqueueStateRestore,
+      ReactControlledComponent.restoreStateIfNeeded,
+      ReactDOMEventListener.dispatchEvent,
+      EventPluginHub.runEventsInBatch,
+    ],
   },
 };
 

packages/react-dom/src/client/ReactDOMFB.js

@@ -7,6 +7,7 @@
  * @flow
  */
 
+import * as EventPluginHub from 'events/EventPluginHub';
 import * as ReactFiberTreeReflection from 'react-reconciler/reflection';
 import * as ReactInstanceMap from 'shared/ReactInstanceMap';
 import {addUserTimingListener} from 'shared/ReactFeatureFlags';
@@ -25,6 +26,7 @@ Object.assign(
     ReactDOMComponentTree,
     ReactInstanceMap,
     // Used by www msite:
+    EventPluginHub,
     TapEventPlugin,
     // Perf experiment
     addUserTimingListener,

packages/react-dom/src/test-utils/ReactTestUtils.js

@@ -24,14 +24,22 @@ import {ELEMENT_NODE} from '../shared/HTMLNodeType';
 import * as DOMTopLevelEventTypes from '../events/DOMTopLevelEventTypes';
 
 const {findDOMNode} = ReactDOM;
-const {
-  EventPluginHub,
-  EventPluginRegistry,
-  EventPropagators,
-  ReactControlledComponent,
-  ReactDOMComponentTree,
-  ReactDOMEventListener,
-} = ReactDOM.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;
+// Keep in sync with ReactDOMUnstableNativeDependencies.js
+// and ReactDOM.js:
+const [
+  getInstanceFromNode,
+  /* eslint-disable no-unused-vars */
+  getNodeFromInstance,
+  getFiberCurrentPropsFromNode,
+  /* eslint-enable no-unused-vars */
+  eventNameDispatchConfigs,
+  accumulateTwoPhaseDispatches,
+  accumulateDirectDispatches,
+  enqueueStateRestore,
+  restoreStateIfNeeded,
+  dispatchEvent,
+  runEventsInBatch,
+] = ReactDOM.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.Events;
 
 function Event(suffix) {}
 
@@ -50,7 +58,7 @@ let hasWarnedAboutDeprecatedMockComponent = false;
  */
 function simulateNativeEventOnNode(topLevelType, node, fakeNativeEvent) {
   fakeNativeEvent.target = node;
-  ReactDOMEventListener.dispatchEvent(topLevelType, fakeNativeEvent);
+  dispatchEvent(topLevelType, fakeNativeEvent);
 }
 
 /**
@@ -399,16 +407,15 @@ function makeSimulator(eventType) {
         'a component instance. Pass the DOM node you wish to simulate the event on instead.',
     );
 
-    const dispatchConfig =
-      EventPluginRegistry.eventNameDispatchConfigs[eventType];
+    const dispatchConfig = eventNameDispatchConfigs[eventType];
 
     const fakeNativeEvent = new Event();
     fakeNativeEvent.target = domNode;
     fakeNativeEvent.type = eventType.toLowerCase();
 
     // We don't use SyntheticEvent.getPooled in order to not have to worry about
     // properly destroying any properties assigned from `eventData` upon release
-    const targetInst = ReactDOMComponentTree.getInstanceFromNode(domNode);
+    const targetInst = getInstanceFromNode(domNode);
     const event = new SyntheticEvent(
       dispatchConfig,
       targetInst,
@@ -422,26 +429,26 @@ function makeSimulator(eventType) {
     Object.assign(event, eventData);
 
     if (dispatchConfig.phasedRegistrationNames) {
-      EventPropagators.accumulateTwoPhaseDispatches(event);
+      accumulateTwoPhaseDispatches(event);
     } else {
-      EventPropagators.accumulateDirectDispatches(event);
+      accumulateDirectDispatches(event);
     }
 
     ReactDOM.unstable_batchedUpdates(function() {
       // Normally extractEvent enqueues a state restore, but we'll just always
       // do that since we we're by-passing it here.
-      ReactControlledComponent.enqueueStateRestore(domNode);
-      EventPluginHub.runEventsInBatch(event, true);
+      enqueueStateRestore(domNode);
+      runEventsInBatch(event, true);
     });
-    ReactControlledComponent.restoreStateIfNeeded();
+    restoreStateIfNeeded();
   };
 }
 
 function buildSimulators() {
   ReactTestUtils.Simulate = {};
 
   let eventType;
-  for (eventType in EventPluginRegistry.eventNameDispatchConfigs) {
+  for (eventType in eventNameDispatchConfigs) {
     /**
      * @param {!Element|ReactDOMComponent} domComponentOrNode
      * @param {?object} eventData Fake event data to use in SyntheticEvent.
@@ -450,19 +457,6 @@ function buildSimulators() {
   }
 }
 
-// Rebuild ReactTestUtils.Simulate whenever event plugins are injected
-const oldInjectEventPluginOrder =
-  EventPluginHub.injection.injectEventPluginOrder;
-EventPluginHub.injection.injectEventPluginOrder = function() {
-  oldInjectEventPluginOrder.apply(this, arguments);
-  buildSimulators();
-};
-const oldInjectEventPlugins = EventPluginHub.injection.injectEventPluginsByName;
-EventPluginHub.injection.injectEventPluginsByName = function() {
-  oldInjectEventPlugins.apply(this, arguments);
-  buildSimulators();
-};
-
 buildSimulators();
 
 /**

packages/react-dom/src/unstable-native-dependencies/ReactDOMUnstableNativeDependencies.js

@@ -22,11 +22,14 @@ export function injectComponentTree(ComponentTree) {
 export {ResponderEventPlugin, ResponderTouchHistoryStore};
 
 // Inject react-dom's ComponentTree into this module.
-const {
-  ReactDOMComponentTree,
-} = ReactDOM.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;
+// Keep in sync with ReactDOM.js and ReactTestUtils.js:
+const [
+  getInstanceFromNode,
+  getNodeFromInstance,
+  getFiberCurrentPropsFromNode,
+] = ReactDOM.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.Events;
 EventPluginUtils.setComponentTree(
-  ReactDOMComponentTree.getFiberCurrentPropsFromNode,
-  ReactDOMComponentTree.getInstanceFromNode,
-  ReactDOMComponentTree.getNodeFromInstance,
+  getFiberCurrentPropsFromNode,
+  getInstanceFromNode,
+  getNodeFromInstance,
 );