@atlaskit/editor-plugin-collab-edit/dist/es2019/pm-plugins/events/initialize.js

Collab Edit plugin for @atlaskit/editor-core

import memoizeOne from 'memoize-one';
import { Step } from '@atlaskit/editor-prosemirror/transform';
import { pluginKey } from '../main/plugin-key';
import { subscribe } from './handlers';
const initCollab = (collabEditProvider, view) => {
  if (collabEditProvider.initialize) {
    collabEditProvider.initialize(() => view.state, json => Step.fromJSON(view.state.schema, json));
  }
};
const initNewCollab = (collabEditProvider, view, editorApi, onSyncUpError) => {
  collabEditProvider.setup({
    getState: () => view.state,
    editorApi,
    onSyncUpError
  });
};
const initCollabMemo = memoizeOne(initCollab);
export const initialize = ({
  options,
  providerFactory,
  view,
  featureFlags,
  editorAnalyticsApi,
  pluginInjectionApi
}) => provider => {
  // eslint-disable-next-line prefer-const
  let cleanup;
  const pluginState = pluginKey.getState(view.state);
  if (pluginState !== null && pluginState !== void 0 && pluginState.isReady && cleanup) {
    cleanup();
  }
  cleanup = subscribe(view, provider, options, featureFlags, providerFactory, editorAnalyticsApi);

  // Initialize provider
  if (options.useNativePlugin) {
    // ED-13912 For NCS we don't want to use memoizeOne because it causes
    // infinite text while changing page-width
    initNewCollab(provider, view, pluginInjectionApi, options.onSyncUpError);
  } else {
    /**
     * We only want to initialise once, if we reload/reconfigure this plugin
     * We dont want to re-init collab, it would break existing sessions
     */
    initCollabMemo(provider, view);
  }
  return cleanup;
};