ReactNativeViewConfigRegistry.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.
 *
 * @noformat
 * @nolint
 * @flow strict-local
 */

'use strict';

import {type ViewConfig} from './ReactNativeTypes';
import invariant from 'invariant';

// Event configs
export const customBubblingEventTypes: {
  [eventName: string]: $ReadOnly<{
    phasedRegistrationNames: $ReadOnly<{
      captured: string,
      bubbled: string,
      skipBubbling?: ?boolean,
    }>,
  }>,
} = {};
export const customDirectEventTypes: {
  [eventName: string]: $ReadOnly<{
    registrationName: string,
  }>,
} = {};

const viewConfigCallbacks = new Map<string, ?() => ViewConfig>();
const viewConfigs = new Map<string, ViewConfig>();

function processEventTypes(viewConfig: ViewConfig): void {
  const {bubblingEventTypes, directEventTypes} = viewConfig;

  if (__DEV__) {
    if (bubblingEventTypes != null && directEventTypes != null) {
      for (const topLevelType in directEventTypes) {
        invariant(
          bubblingEventTypes[topLevelType] == null,
          'Event cannot be both direct and bubbling: %s',
          topLevelType,
        );
      }
    }
  }

  if (bubblingEventTypes != null) {
    for (const topLevelType in bubblingEventTypes) {
      if (customBubblingEventTypes[topLevelType] == null) {
        customBubblingEventTypes[topLevelType] =
          bubblingEventTypes[topLevelType];
      }
    }
  }

  if (directEventTypes != null) {
// ... (65 more lines)