ReactDOMEventHandle.js — react Source File

Source Code

/**
 * 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
 */

import type {DOMEventName} from '../events/DOMEventNames';
import type {ReactScopeInstance} from 'shared/ReactTypes';
import type {
  ReactDOMEventHandle,
  ReactDOMEventHandleListener,
} from './ReactDOMEventHandleTypes';

import {allNativeEvents} from '../events/EventRegistry';
import {
  getEventHandlerListeners,
  setEventHandlerListeners,
  doesTargetHaveEventHandle,
  addEventHandleToTarget,
} from './ReactDOMComponentTree';
import {ELEMENT_NODE} from './HTMLNodeType';
import {listenToNativeEventForNonManagedEventTarget} from '../events/DOMPluginEventSystem';

import {
  enableScopeAPI,
  enableCreateEventHandleAPI,
} from 'shared/ReactFeatureFlags';
import typeof {SyntheticEvent} from '../events/SyntheticEvent';

type EventHandleOptions = {
  capture?: boolean,
};

function isValidEventTarget(target: EventTarget | ReactScopeInstance): boolean {
  return typeof (target: Object).addEventListener === 'function';
}

function isReactScope(target: EventTarget | ReactScopeInstance): boolean {
  return typeof (target: Object).getChildContextValues === 'function';
}

function createEventHandleListener(
  type: DOMEventName,
  isCapturePhaseListener: boolean,
  callback: SyntheticEvent => void,
): ReactDOMEventHandleListener {
  return {
    callback,
    capture: isCapturePhaseListener,
    type,
  };
}

function registerReactDOMEvent(
  target: EventTarget | ReactScopeInstance,
  domEventName: DOMEventName,
  isCapturePhaseListener: boolean,
// ... (90 more lines)