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How to use hasNonRootReactChild method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactDOMLegacy.js

Source:ReactDOMLegacy.js

1/**2 * Copyright (c) Facebook, Inc. and its affiliates.3 *4 * This source code is licensed under the MIT license found in the5 * LICENSE file in the root directory of this source tree.6 *7 * @flow8 */9import type {Container} from './ReactDOMHostConfig';10import type {RootType} from './ReactDOMRoot';11import type {ReactNodeList} from 'shared/ReactTypes';12import {13  getInstanceFromNode,14  isContainerMarkedAsRoot,15  unmarkContainerAsRoot,16} from './ReactDOMComponentTree';17import {createLegacyRoot, isValidContainer} from './ReactDOMRoot';18import {ROOT_ATTRIBUTE_NAME} from '../shared/DOMProperty';19import {20  DOCUMENT_NODE,21  ELEMENT_NODE,22  COMMENT_NODE,23} from '../shared/HTMLNodeType';24import {25  findHostInstanceWithNoPortals,26  updateContainer,27  unbatchedUpdates,28  getPublicRootInstance,29  findHostInstance,30  findHostInstanceWithWarning,31} from 'react-reconciler/src/ReactFiberReconciler';32import getComponentName from 'shared/getComponentName';33import invariant from 'shared/invariant';34import ReactSharedInternals from 'shared/ReactSharedInternals';35import {has as hasInstance} from 'shared/ReactInstanceMap';36const ReactCurrentOwner = ReactSharedInternals.ReactCurrentOwner;37let topLevelUpdateWarnings;38let warnedAboutHydrateAPI = false;39if (__DEV__) {40  topLevelUpdateWarnings = (container: Container) => {41    if (container._reactRootContainer && container.nodeType !== COMMENT_NODE) {42      const hostInstance = findHostInstanceWithNoPortals(43        container._reactRootContainer._internalRoot.current,44      );45      if (hostInstance) {46        if (hostInstance.parentNode !== container) {47          console.error(48            'render(...): It looks like the React-rendered content of this ' +49              'container was removed without using React. This is not ' +50              'supported and will cause errors. Instead, call ' +51              'ReactDOM.unmountComponentAtNode to empty a container.',52          );53        }54      }55    }56    const isRootRenderedBySomeReact = !!container._reactRootContainer;57    const rootEl = getReactRootElementInContainer(container);58    const hasNonRootReactChild = !!(rootEl && getInstanceFromNode(rootEl));59    if (hasNonRootReactChild && !isRootRenderedBySomeReact) {60      console.error(61        'render(...): Replacing React-rendered children with a new root ' +62          'component. If you intended to update the children of this node, ' +63          'you should instead have the existing children update their state ' +64          'and render the new components instead of calling ReactDOM.render.',65      );66    }67    if (68      container.nodeType === ELEMENT_NODE &&69      ((container: any): Element).tagName &&70      ((container: any): Element).tagName.toUpperCase() === 'BODY'71    ) {72      console.error(73        'render(): Rendering components directly into document.body is ' +74          'discouraged, since its children are often manipulated by third-party ' +75          'scripts and browser extensions. This may lead to subtle ' +76          'reconciliation issues. Try rendering into a container element created ' +77          'for your app.',78      );79    }80  };81}82function getReactRootElementInContainer(container: any) {83  if (!container) {84    return null;85  }86  if (container.nodeType === DOCUMENT_NODE) {87    return container.documentElement;88  } else {89    return container.firstChild;90  }91}92function shouldHydrateDueToLegacyHeuristic(container) {93  const rootElement = getReactRootElementInContainer(container);94  return !!(95    rootElement &&96    rootElement.nodeType === ELEMENT_NODE &&97    rootElement.hasAttribute(ROOT_ATTRIBUTE_NAME)98  );99}100function legacyCreateRootFromDOMContainer(101  container: Container,102  forceHydrate: boolean,103): RootType {104  const shouldHydrate =105    forceHydrate || shouldHydrateDueToLegacyHeuristic(container);106  // First clear any existing content.107  if (!shouldHydrate) {108    let warned = false;109    let rootSibling;110    while ((rootSibling = container.lastChild)) {111      // r dev112      container.removeChild(rootSibling);113    }114  }115  // r dev116  return createLegacyRoot(117    container,118    shouldHydrate119      ? {120          hydrate: true,121        }122      : undefined,123  );124}125function legacyRenderSubtreeIntoContainer(126  parentComponent: ?React$Component<any, any>,127  children: ReactNodeList,128  container: Container,129  forceHydrate: boolean,130  callback: ?Function,131) {132  // r dev133  // TODO: Without `any` type, Flow says "Property cannot be accessed on any134  // member of intersection type." Whyyyyyy.135  let root: RootType = (container._reactRootContainer: any);136  let fiberRoot;137  if (!root) {138    // Initial mount139    root = container._reactRootContainer = legacyCreateRootFromDOMContainer(140      container,141      forceHydrate,142    );143    fiberRoot = root._internalRoot;144    if (typeof callback === 'function') {145      const originalCallback = callback;146      callback = function() {147        const instance = getPublicRootInstance(fiberRoot);148        originalCallback.call(instance);149      };150    }151    // Initial mount should not be batched.152    unbatchedUpdates(() => {153      updateContainer(children, fiberRoot, parentComponent, callback);154    });155  } else {156    fiberRoot = root._internalRoot;157    if (typeof callback === 'function') {158      const originalCallback = callback;159      callback = function() {160        const instance = getPublicRootInstance(fiberRoot);161        originalCallback.call(instance);162      };163    }164    // Update165    updateContainer(children, fiberRoot, parentComponent, callback);166  }167  return getPublicRootInstance(fiberRoot);168}169export function findDOMNode(170  componentOrElement: Element | ?React$Component<any, any>,171): null | Element | Text {172  if (__DEV__) {173    const owner = (ReactCurrentOwner.current: any);174    if (owner !== null && owner.stateNode !== null) {175      const warnedAboutRefsInRender = owner.stateNode._warnedAboutRefsInRender;176      if (!warnedAboutRefsInRender) {177        console.error(178          '%s is accessing findDOMNode inside its render(). ' +179            'render() should be a pure function of props and state. It should ' +180            'never access something that requires stale data from the previous ' +181            'render, such as refs. Move this logic to componentDidMount and ' +182            'componentDidUpdate instead.',183          getComponentName(owner.type) || 'A component',184        );185      }186      owner.stateNode._warnedAboutRefsInRender = true;187    }188  }189  if (componentOrElement == null) {190    return null;191  }192  if ((componentOrElement: any).nodeType === ELEMENT_NODE) {193    return (componentOrElement: any);194  }195  if (__DEV__) {196    return findHostInstanceWithWarning(componentOrElement, 'findDOMNode');197  }198  return findHostInstance(componentOrElement);199}200export function hydrate(201  element: React$Node,202  container: Container,203  callback: ?Function,204) {205  invariant(206    isValidContainer(container),207    'Target container is not a DOM element.',208  );209  if (__DEV__) {210    const isModernRoot =211      isContainerMarkedAsRoot(container) &&212      container._reactRootContainer === undefined;213    if (isModernRoot) {214      console.error(215        'You are calling ReactDOM.hydrate() on a container that was previously ' +216          'passed to ReactDOM.createRoot(). This is not supported. ' +217          'Did you mean to call createRoot(container, {hydrate: true}).render(element)?',218      );219    }220  }221  // TODO: throw or warn if we couldn't hydrate?222  return legacyRenderSubtreeIntoContainer(223    null,224    element,225    container,226    true,227    callback,228  );229}230export function render(231  element: React$Element<any>,232  container: Container,233  callback: ?Function,234) {235  // r dev236  return legacyRenderSubtreeIntoContainer(237    null,238    element,239    container,240    false,241    callback,242  );243}244export function unstable_renderSubtreeIntoContainer(245  parentComponent: React$Component<any, any>,246  element: React$Element<any>,247  containerNode: Container,248  callback: ?Function,249) {250  invariant(251    isValidContainer(containerNode),252    'Target container is not a DOM element.',253  );254  invariant(255    parentComponent != null && hasInstance(parentComponent),256    'parentComponent must be a valid React Component',257  );258  return legacyRenderSubtreeIntoContainer(259    parentComponent,260    element,261    containerNode,262    false,263    callback,264  );265}266export function unmountComponentAtNode(container: Container) {267  invariant(268    isValidContainer(container),269    'unmountComponentAtNode(...): Target container is not a DOM element.',270  );271  if (__DEV__) {272    const isModernRoot =273      isContainerMarkedAsRoot(container) &&274      container._reactRootContainer === undefined;275    if (isModernRoot) {276      console.error(277        'You are calling ReactDOM.unmountComponentAtNode() on a container that was previously ' +278          'passed to ReactDOM.createRoot(). This is not supported. Did you mean to call root.unmount()?',279      );280    }281  }282  if (container._reactRootContainer) {283    if (__DEV__) {284      const rootEl = getReactRootElementInContainer(container);285      const renderedByDifferentReact = rootEl && !getInstanceFromNode(rootEl);286      if (renderedByDifferentReact) {287        console.error(288          "unmountComponentAtNode(): The node you're attempting to unmount " +289            'was rendered by another copy of React.',290        );291      }292    }293    // Unmount should not be batched.294    unbatchedUpdates(() => {295      legacyRenderSubtreeIntoContainer(null, null, container, false, () => {296        // $FlowFixMe This should probably use `delete container._reactRootContainer`297        container._reactRootContainer = null;298        unmarkContainerAsRoot(container);299      });300    });301    // If you call unmountComponentAtNode twice in quick succession, you'll302    // get `true` twice. That's probably fine?303    return true;304  } else {305    if (__DEV__) {306      const rootEl = getReactRootElementInContainer(container);307      const hasNonRootReactChild = !!(rootEl && getInstanceFromNode(rootEl));308      // Check if the container itself is a React root node.309      const isContainerReactRoot =310        container.nodeType === ELEMENT_NODE &&311        isValidContainer(container.parentNode) &&312        !!container.parentNode._reactRootContainer;313      if (hasNonRootReactChild) {314        console.error(315          "unmountComponentAtNode(): The node you're attempting to unmount " +316            'was rendered by React and is not a top-level container. %s',317          isContainerReactRoot318            ? 'You may have accidentally passed in a React root node instead ' +319                'of its container.'320            : 'Instead, have the parent component update its state and ' +321                'rerender in order to remove this component.',322        );323      }324    }325    return false;326  }...

Using AI Code Generation

1const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch();5  const page = await browser.newPage();6  const elementHandle = await page.$('div');7  const hasNonRootReactChild = await hasNonRootReactChild(elementHandle);8  console.log(hasNonRootReactChild);9  await browser.close();10})();

Using AI Code Generation

1const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');2const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');3const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');4const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');5const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');6const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');7const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');8const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');9const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');10const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');11const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');12const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');13const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');14const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');15const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');

Using AI Code Generation

1const { hasNonRootReactChild } = require('playwright/lib/server/dom.js');2const { chromium } = require('playwright');3const { ReactSelector } = require('playwright-react-selector');4(async () => {5  const browser = await chromium.launch();6  const page = await browser.newPage();7  const reactSelector = new ReactSelector('h1');8  const reactHandle = await page.waitForSelector(reactSelector);9  const hasChild = await hasNonRootReactChild(reactHandle);10  console.log('hasChild', hasChild);11  await browser.close();12})();13const { test, expect } = require('@playwright/test');14const { ReactSelector } = require('playwright-react-selector');15test('React Selector', async ({ page }) => {16  const reactSelector = new ReactSelector('h1');17  const reactHandle = await page.waitForSelector(reactSelector);18  const hasChild = await reactHandle.hasNonRootReactChild();19  expect(hasChild).toBe(true);20});21      at Object.<anonymous> (test.spec.js:10:15)22      at Object.<anonymous> (test.spec.js:10:15)23      9 |   const reactHandle = await page.waitForSelector(reactSelector);24     10 |   const hasChild = await reactHandle.hasNonRootReactChild();25   > 11 |   expect(hasChild).toBe(true);26     12 | });27      at Object.<anonymous> (test.spec.js:11:19)

Using AI Code Generation

1const { InternalAPI } = require('playwright');2const { hasNonRootReactChild } = InternalAPI.reactUtils;3const { Page } = require('playwright');4const { InternalAPI } = require('playwright');5const { hasNonRootReactChild } = InternalAPI.reactUtils;6const { Page } = require('playwright');7const { InternalAPI } = require('playwright');8const { hasNonRootReactChild } = InternalAPI.reactUtils;9const { Page } = require('playwright');10const { InternalAPI } = require('playwright');11const { hasNonRootReactChild } = InternalAPI.reactUtils;12const { Page } = require('playwright');13const { InternalAPI } = require('playwright');14const { hasNonRootReactChild } = InternalAPI.reactUtils;15const { Page } = require('playwright');16const { InternalAPI } = require('playwright');17const { hasNonRootReactChild } = InternalAPI.reactUtils;18const { Page } = require('playwright');19const { InternalAPI } = require('playwright');20const { hasNonRootReactChild } = InternalAPI.reactUtils;21const { Page } = require('playwright');22const { InternalAPI } = require('playwright');23const { hasNonRootReactChild } = InternalAPI.reactUtils;24const { Page } = require('playwright');25const { InternalAPI } = require('playwright');26const { hasNonRootReactChild } = InternalAPI.reactUtils;27const { Page } = require('playwright');28const { InternalAPI } = require('playwright');29const { hasNonRootReactChild } = InternalAPI.reactUtils;30const { Page } = require('playwright');

Using AI Code Generation

1const { hasNonRootReactChild } = require('playwright/lib/server/domSnapshot');2const { test, expect } = require('@playwright/test');3test('should work', async ({ page }) => {4  const hasReactChild = await page.evaluate(hasNonRootReactChild, page.mainFrame().document);5  expect(hasReactChild).toBe(true);6});

Using AI Code Generation

1const { Playwright } = require('playwright-core');2const playwright = new Playwright({3});4console.log(playwright._internal.hasNonRootReactChild({name: 'div', attributes: {}}));5const { Playwright } = require('playwright-core');6const playwright = new Playwright({7});8console.log(playwright._internal.hasNonRootReactChild({name: 'div', attributes: { 'data-reactroot': 'true' }}));9const { Playwright } = require('playwright-core');10const playwright = new Playwright({11});12console.log(playwright._internal.hasNonRootReactChild({name: 'div', attributes: { 'data-reactroot': 'false' }}));13const { Playwright } = require('playwright-core');14const playwright = new Playwright({

Using AI Code Generation

1const { chromium } = require("playwright");2(async () => {3  const browser = await chromium.launch({ headless: false });4  const context = await browser.newContext();5  const page = await context.newPage();6  await page.fill("input[name='name']", "John Doe");7  await page.fill("input[name='email']", "

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