[change] Replace the ResponderEventPlugin

Replaces the ResponderEventPlugin with useResponderEvents hook.

Also removes the event "normalization" of mouse, touch, and click events.
These events are not part of the responder system and will no longer be
modified from what ReactDOM dispatches.

Fix #1568
Fix #829
Fix #693

Author: necolas

.eslintrc

@@ -39,6 +39,7 @@
     "$ReadOnly": false,
     "$ReadOnlyArray": false,
     "CSSStyleSheet": false,
+    "HTMLElement": false,
     "HTMLInputElement": false,
     "ReactClass": false,
     "ReactComponent": false,

packages/react-native-web/src/exports/Text/index.js

@@ -15,6 +15,7 @@ import css from '../StyleSheet/css';
 import setAndForwardRef from '../../modules/setAndForwardRef';
 import useElementLayout from '../../hooks/useElementLayout';
 import usePlatformMethods from '../../hooks/usePlatformMethods';
+import useResponderEvents from '../../hooks/useResponderEvents';
 import React, { forwardRef, useContext, useRef } from 'react';
 import StyleSheet from '../StyleSheet';
 import TextAncestorContext from './TextAncestorContext';
@@ -107,6 +108,24 @@ const Text = forwardRef<TextProps, *>((props, ref) => {
 
   useElementLayout(hostRef, onLayout);
   usePlatformMethods(hostRef, ref, classList, style);
+  useResponderEvents(hostRef, {
+    onMoveShouldSetResponder,
+    onMoveShouldSetResponderCapture,
+    onResponderEnd,
+    onResponderGrant,
+    onResponderMove,
+    onResponderReject,
+    onResponderRelease,
+    onResponderStart,
+    onResponderTerminate,
+    onResponderTerminationRequest,
+    onScrollShouldSetResponder,
+    onScrollShouldSetResponderCapture,
+    onSelectionChangeShouldSetResponder,
+    onSelectionChangeShouldSetResponderCapture,
+    onStartShouldSetResponder,
+    onStartShouldSetResponderCapture
+  });
 
   function createEnterHandler(fn) {
     return e => {
@@ -138,29 +157,13 @@ const Text = forwardRef<TextProps, *>((props, ref) => {
     importantForAccessibility,
     nativeID,
     onBlur,
+    onContextMenu,
     onFocus,
-    onMoveShouldSetResponder,
-    onMoveShouldSetResponderCapture,
-    onResponderEnd,
-    onResponderGrant,
-    onResponderMove,
-    onResponderReject,
-    onResponderRelease,
-    onResponderStart,
-    onResponderTerminate,
-    onResponderTerminationRequest,
-    onScrollShouldSetResponder,
-    onScrollShouldSetResponderCapture,
-    onSelectionChangeShouldSetResponder,
-    onSelectionChangeShouldSetResponderCapture,
-    onStartShouldSetResponder,
-    onStartShouldSetResponderCapture,
     ref: setRef,
     style,
     testID,
     // unstable
     onClick: onPress != null ? createPressHandler(onPress) : null,
-    onContextMenu,
     onKeyDown: onPress != null ? createEnterHandler(onPress) : null,
     onMouseDown,
     onMouseEnter,

packages/react-native-web/src/exports/Text/types.js

@@ -115,7 +115,7 @@ export type TextProps = {
   onResponderRelease?: (e: any) => void,
   onResponderStart?: (e: any) => void,
   onResponderTerminate?: (e: any) => void,
-  onResponderTerminationRequest?: (e: any) => void,
+  onResponderTerminationRequest?: (e: any) => boolean,
   onScrollShouldSetResponder?: (e: any) => boolean,
   onScrollShouldSetResponderCapture?: (e: any) => boolean,
   onSelectionChangeShouldSetResponder?: (e: any) => boolean,

packages/react-native-web/src/exports/TextInput/index.js

@@ -16,6 +16,7 @@ import setAndForwardRef from '../../modules/setAndForwardRef';
 import useElementLayout from '../../hooks/useElementLayout';
 import useLayoutEffect from '../../hooks/useLayoutEffect';
 import { usePlatformInputMethods } from '../../hooks/usePlatformMethods';
+import useResponderEvents from '../../hooks/useResponderEvents';
 import { forwardRef, useRef } from 'react';
 import StyleSheet from '../StyleSheet';
 import TextInputState from '../../modules/TextInputState';
@@ -286,6 +287,24 @@ const TextInput = forwardRef<TextInputProps, *>((props, ref) => {
 
   useElementLayout(hostRef, onLayout);
   usePlatformInputMethods(hostRef, ref, classList, style);
+  useResponderEvents(hostRef, {
+    onMoveShouldSetResponder,
+    onMoveShouldSetResponderCapture,
+    onResponderEnd,
+    onResponderGrant,
+    onResponderMove,
+    onResponderReject,
+    onResponderRelease,
+    onResponderStart,
+    onResponderTerminate,
+    onResponderTerminationRequest,
+    onScrollShouldSetResponder,
+    onScrollShouldSetResponderCapture,
+    onSelectionChangeShouldSetResponder,
+    onSelectionChangeShouldSetResponderCapture,
+    onStartShouldSetResponder,
+    onStartShouldSetResponderCapture
+  });
 
   return createElement(component, {
     accessibilityLabel,
@@ -310,22 +329,6 @@ const TextInput = forwardRef<TextInputProps, *>((props, ref) => {
     onKeyDown: handleKeyDown,
     onScroll,
     onSelect: handleSelectionChange,
-    onMoveShouldSetResponder,
-    onMoveShouldSetResponderCapture,
-    onResponderEnd,
-    onResponderGrant,
-    onResponderMove,
-    onResponderReject,
-    onResponderRelease,
-    onResponderStart,
-    onResponderTerminate,
-    onResponderTerminationRequest,
-    onScrollShouldSetResponder,
-    onScrollShouldSetResponderCapture,
-    onSelectionChangeShouldSetResponder,
-    onSelectionChangeShouldSetResponderCapture,
-    onStartShouldSetResponder,
-    onStartShouldSetResponderCapture,
     placeholder,
     pointerEvents,
     testID,

packages/react-native-web/src/exports/View/index.js

@@ -15,6 +15,7 @@ import css from '../StyleSheet/css';
 import setAndForwardRef from '../../modules/setAndForwardRef';
 import useElementLayout from '../../hooks/useElementLayout';
 import usePlatformMethods from '../../hooks/usePlatformMethods';
+import useResponderEvents from '../../hooks/useResponderEvents';
 import StyleSheet from '../StyleSheet';
 import TextAncestorContext from '../Text/TextAncestorContext';
 import React, { forwardRef, useContext, useRef } from 'react';
@@ -132,21 +133,7 @@ const View = forwardRef<ViewProps, *>((props, ref) => {
 
   useElementLayout(hostRef, onLayout);
   usePlatformMethods(hostRef, ref, classList, style);
-
-  return createElement('div', {
-    accessibilityLabel,
-    accessibilityLiveRegion,
-    accessibilityRelationship,
-    accessibilityRole,
-    accessibilityState,
-    accessibilityValue,
-    children,
-    classList,
-    importantForAccessibility,
-    nativeID,
-    onBlur,
-    onContextMenu,
-    onFocus,
+  useResponderEvents(hostRef, {
     onMoveShouldSetResponder,
     onMoveShouldSetResponderCapture,
     onResponderEnd,
@@ -162,7 +149,23 @@ const View = forwardRef<ViewProps, *>((props, ref) => {
     onSelectionChangeShouldSetResponder,
     onSelectionChangeShouldSetResponderCapture,
     onStartShouldSetResponder,
-    onStartShouldSetResponderCapture,
+    onStartShouldSetResponderCapture
+  });
+
+  return createElement('div', {
+    accessibilityLabel,
+    accessibilityLiveRegion,
+    accessibilityRelationship,
+    accessibilityRole,
+    accessibilityState,
+    accessibilityValue,
+    children,
+    classList,
+    importantForAccessibility,
+    nativeID,
+    onBlur,
+    onContextMenu,
+    onFocus,
     pointerEvents,
     ref: setRef,
     style,

packages/react-native-web/src/exports/View/types.js

@@ -109,7 +109,7 @@ export type ViewProps = {
   onResponderRelease?: (e: any) => void,
   onResponderStart?: (e: any) => void,
   onResponderTerminate?: (e: any) => void,
-  onResponderTerminationRequest?: (e: any) => void,
+  onResponderTerminationRequest?: (e: any) => boolean,
   onScrollShouldSetResponder?: (e: any) => boolean,
   onScrollShouldSetResponderCapture?: (e: any) => boolean,
   onSelectionChangeShouldSetResponder?: (e: any) => boolean,

packages/react-native-web/src/exports/createElement/__tests__/__snapshots__/index-test.js.snap

@@ -1,28 +1,5 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`modules/createElement normalizes event.nativeEvent 1`] = `
-Object {
-  "_normalized": true,
-  "bubbles": undefined,
-  "cancelable": undefined,
-  "changedTouches": Array [],
-  "defaultPrevented": undefined,
-  "identifier": undefined,
-  "locationX": undefined,
-  "locationY": undefined,
-  "pageX": undefined,
-  "pageY": undefined,
-  "preventDefault": [Function],
-  "stopImmediatePropagation": [Function],
-  "stopPropagation": [Function],
-  "target": undefined,
-  "timestamp": 1496876171255,
-  "touches": Array [],
-  "type": undefined,
-  "which": undefined,
-}
-`;
-
 exports[`modules/createElement renders different DOM elements 1`] = `<span />`;
 
 exports[`modules/createElement renders different DOM elements 2`] = `<main />`;

packages/react-native-web/src/exports/createElement/__tests__/index-test.js

@@ -12,18 +12,6 @@ describe('modules/createElement', () => {
     expect(component).toMatchSnapshot();
   });
 
-  test('normalizes event.nativeEvent', done => {
-    const onClick = e => {
-      e.nativeEvent.timestamp = 1496876171255;
-      expect(e.nativeEvent).toMatchSnapshot();
-      done();
-    };
-    const component = shallow(createElement('span', { onClick }));
-    component.find('span').simulate('click', {
-      nativeEvent: {}
-    });
-  });
-
   describe('prop "accessibilityRole"', () => {
     test('and string component type', () => {
       const component = shallow(createElement('span', { accessibilityRole: 'link' }));

packages/react-native-web/src/exports/createElement/index.js

@@ -8,77 +8,18 @@
  */
 
 import AccessibilityUtil from '../../modules/AccessibilityUtil';
-import { canUseDOM } from 'fbjs/lib/ExecutionEnvironment';
 import createDOMProps from '../../modules/createDOMProps';
-import { injectEventPluginsByName } from 'react-dom/unstable-native-dependencies';
-import normalizeNativeEvent from '../../modules/normalizeNativeEvent';
 import React from 'react';
-import ResponderEventPlugin from '../../modules/ResponderEventPlugin';
 
-if (canUseDOM) {
-  injectEventPluginsByName({
-    ResponderEventPlugin
-  });
-}
-
-const isModifiedEvent = event =>
-  !!(event.metaKey || event.altKey || event.ctrlKey || event.shiftKey);
-
-/**
- * Ensure event handlers receive an event of the expected shape. The 'button'
- * role – for accessibility reasons and functional equivalence to the native
- * button element – must also support synthetic keyboard activation of onclick,
- * and remove event handlers when disabled.
- */
-const eventHandlerNames = {
-  onBlur: true,
-  onClick: true,
-  onClickCapture: true,
-  onContextMenu: true,
-  onFocus: true,
-  onResponderRelease: true,
-  onTouchCancel: true,
-  onTouchCancelCapture: true,
-  onTouchEnd: true,
-  onTouchEndCapture: true,
-  onTouchMove: true,
-  onTouchMoveCapture: true,
-  onTouchStart: true,
-  onTouchStartCapture: true
-};
 const adjustProps = domProps => {
-  const { onClick, onResponderRelease, role } = domProps;
+  const { onClick, role } = domProps;
 
   const isButtonLikeRole = AccessibilityUtil.buttonLikeRoles[role];
   const isDisabled = AccessibilityUtil.isDisabled(domProps);
-  const isLinkRole = role === 'link';
 
-  Object.keys(domProps).forEach(propName => {
-    const prop = domProps[propName];
-    const isEventHandler = typeof prop === 'function' && eventHandlerNames[propName];
-    if (isEventHandler) {
-      if (isButtonLikeRole && isDisabled) {
-        domProps[propName] = undefined;
-      } else {
-        // TODO: move this out of the render path
-        domProps[propName] = e => {
-          e.nativeEvent = normalizeNativeEvent(e.nativeEvent);
-          return prop(e);
-        };
-      }
-    }
-  });
-
-  // Cancel click events if the responder system is being used on a link
-  // element. Click events are not an expected part of the React Native API,
-  // and browsers dispatch click events that cannot otherwise be cancelled from
-  // preceding mouse events in the responder system.
-  if (isLinkRole && onResponderRelease) {
-    domProps.onClick = function(e) {
-      if (!e.isDefaultPrevented() && !isModifiedEvent(e.nativeEvent) && !domProps.target) {
-        e.preventDefault();
-      }
-    };
+  // Button-like roles should not trigger 'onClick' if they are disabled.
+  if (isButtonLikeRole && isDisabled && domProps.onClick != null) {
+    domProps.onClick = undefined;
   }
 
   // Button-like roles should trigger 'onClick' if SPACE or ENTER keys are pressed.