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How to use checkAndWarnForMutatedStyle method in Playwright Internal

Best JavaScript code snippet using playwright-internal

Component.js

Source:Component.js

...124    UpdateQueue.enqueueCallbackInternal(component, callback);125  }126}127var styleMutationWarning = {};128function checkAndWarnForMutatedStyle(style1, style2, component) {129  if (style1 == null || style2 == null) {130    return;131  }132  if (shallowEqual(style1, style2)) {133    return;134  }135  var componentName = component._tag;136  var owner = component._currentElement._owner;137  var ownerName;138  if (owner) {139    ownerName = owner.getName();140  }141  var hash = ownerName + '|' + componentName;142  if (hasOwnProperty(styleMutationWarning, hash)) {143    return;144  }145  styleMutationWarning[hash] = true;146  warning(147    false,148    '`%s` was passed a style object that has previously been mutated. ' +149    'Mutating `style` is deprecated. Consider cloning it beforehand. Check ' +150    'the `render` %s. Previous style: %s. Mutated style: %s.',151    componentName,152    owner ? 'of `' + ownerName + '`' : 'using <' + componentName + '>',153    JSON.stringify(style1),154    JSON.stringify(style2)155  );156}157/**158 * @param {object} component159 * @param {?object} props160 */161function assertValidProps(component, props) {162  if (!props) {163    return;164  }165  // Note the use of `==` which checks for null or undefined.166  if (__DEV__) {167    if (voidElementTags[component._tag]) {168      warning(169        props.children == null && props.dangerouslySetInnerHTML == null,170        '%s is a void element tag and must not have `children` or ' +171        'use `props.dangerouslySetInnerHTML`.%s',172        component._tag,173        component._currentElement._owner ?174          ' Check the render method of ' +175          component._currentElement._owner.getName() + '.' :176          ''177      );178    }179  }180  if (props.dangerouslySetInnerHTML != null) {181    invariant(182      props.children == null,183      'Can only set one of `children` or `props.dangerouslySetInnerHTML`.'184    );185    invariant(186      typeof props.dangerouslySetInnerHTML === 'object' &&187      '__html' in props.dangerouslySetInnerHTML,188      '`props.dangerouslySetInnerHTML` must be in the form `{__html: ...}`. ' +189      'Please visit https://fb.me/react-invariant-dangerously-set-inner-html ' +190      'for more information.'191    );192  }193  if (__DEV__) {194    warning(195      props.innerHTML == null,196      'Directly setting property `innerHTML` is not permitted. ' +197      'For more information, lookup documentation on `dangerouslySetInnerHTML`.'198    );199    warning(200      !props.contentEditable || props.children == null,201      'A component is `contentEditable` and contains `children` managed by ' +202      'React. It is now your responsibility to guarantee that none of ' +203      'those nodes are unexpectedly modified or duplicated. This is ' +204      'probably not intentional.'205    );206  }207  invariant(208    props.style == null || typeof props.style === 'object',209    'The `style` prop expects a mapping from style properties to values, ' +210    'not a string. For example, style={{marginRight: spacing + \'em\'}} when ' +211    'using JSX.%s',212     getDeclarationErrorAddendum(component)213  );214}215function enqueuePutListener(id, registrationName, listener, transaction) {216  var container = Mount.findReactContainerForID(id);217  if (container) {218    var doc = container.nodeType === ELEMENT_NODE_TYPE ? container.ownerDocument : container;219    EventEmitter.listenTo(registrationName, doc);220  }221  transaction.getReactMountReady().enqueue(putListener, {222    id: id,223    registrationName: registrationName,224    listener: listener225  });226}227function putListener(id, registrationName, listener, transaction) {228  // TODO check if tvml registers events the same way as listenTo229  // TODO I'm not sure we can register events in `document` and delegate230  EventEmitter.EventEmitter.listenTo(registrationName, Mount.findReactContainerForID(id));231  transaction.getReactMountReady().enqueue(putListener, {232    id: id,233    registrationName: registrationName,234    listener: listener,235  });236  // if (container) {237  //   var doc = container.nodeType === ELEMENT_NODE_TYPE ?238  //     container.ownerDocument :239  //     container;240  //   EventEmitter.listenTo(registrationName, doc);241  // }242}243function putListener() {244  var listenerToPut = this;245  EventEmitter.putListener(246    listenerToPut.id,247    listenerToPut.registrationName,248    listenerToPut.listener249  );250}251// There are so many media events, it makes sense to just252// maintain a list rather than create a `trapBubbledEvent` for each253var mediaEvents = {254  // topAbort: 'abort',255  // topCanPlay: 'canplay',256  // topCanPlayThrough: 'canplaythrough',257  // topDurationChange: 'durationchange',258  // topEmptied: 'emptied',259  // topEncrypted: 'encrypted',260  // topEnded: 'ended',261  // topError: 'error',262  // topLoadedData: 'loadeddata',263  // topLoadedMetadata: 'loadedmetadata',264  // topLoadStart: 'loadstart',265  // topPause: 'pause',266  // topPlay: 'play',267  // topPlaying: 'playing',268  // topProgress: 'progress',269  // topRateChange: 'ratechange',270  // topSeeked: 'seeked',271  // topSeeking: 'seeking',272  // topStalled: 'stalled',273  // topSuspend: 'suspend',274  // topTimeUpdate: 'timeupdate',275  // topVolumeChange: 'volumechange',276  // topWaiting: 'waiting',277};278function postUpdateSelectWrapper() {279  DOMSelect.postUpdateWrapper(this);280}281// For HTML, certain tags should omit their close tag. We keep a whitelist for282// those special cased tags.283var omittedCloseTags = {284  'badge': true,285  'decorationImage': true,286  'fullscreenImg': true,287  'heroImg': true,288  'img': true,289  'ratingBadge': true,290  'asset': true,291  'monogram': true292};293var newlineEatingTags = {294  // 'listing': true,295  // 'pre': true,296  // 'textarea': true,297};298// For HTML, certain tags cannot have children. This has the same purpose as299// `omittedCloseTags` except that `menuitem` should still have its closing tag.300var voidElementTags = assign({301}, omittedCloseTags);302// We accept any tag to be rendered but since this gets injected into arbitrary303// HTML, we want to make sure that it's a safe tag.304// http://www.w3.org/TR/REC-xml/#NT-Name305var VALID_TAG_REGEX = /^[a-zA-Z][a-zA-Z:_\.\-\d]*$/; // Simplified subset306var validatedTagCache = {};307function validateDangerousTag(tag) {308  if (!hasOwnProperty(validatedTagCache, tag)) {309    invariant(VALID_TAG_REGEX.test(tag), 'Invalid tag: %s', tag);310    validatedTagCache[tag] = true;311  }312}313function processChildContext(context, inst) {314  if (__DEV__) {315    // Pass down our tag name to child components for validation purposes316    context = assign({}, context);317    var info = context[validateDOMNesting.ancestorInfoContextKey];318    context[validateDOMNesting.ancestorInfoContextKey] =319      validateDOMNesting.updatedAncestorInfo(info, inst._tag, inst);320  }321  return context;322}323function isCustomComponent(tagName, props) {324  return tagName.indexOf('-') >= 0 || props.is != null;325}326/**327 * Creates a new React class that is idempotent and capable of containing other328 * React components. It accepts event listeners and DOM properties that are329 * valid according to `DOMProperty`.330 *331 *  - Event listeners: `onClick`, `onMouseDown`, etc.332 *  - DOM properties: `className`, `name`, `title`, etc.333 *334 * The `style` property functions differently from the DOM API. It accepts an335 * object mapping of style properties to values.336 *337 * @constructor ReactTVMLComponent338 * @extends ReactMultiChild339 */340function ReactTVMLComponent(tag) {341  validateDangerousTag(tag);342  this._tag = tag.toLowerCase();343  this._renderedChildren = null;344  this._previousStyle = null;345  this._previousStyleCopy = null;346  this._rootNodeID = null;347  this._wrapperState = null;348  this._topLevelWrapper = null;349  this._nodeWithLegacyProperties = null;350}351ReactTVMLComponent.displayName = 'ReactTVMLComponent';352ReactTVMLComponent.Mixin = {353  construct: function(element) {354    this._currentElement = element;355  },356  /**357   * Generates root tag markup then recurses. This method has side effects and358   * is not idempotent.359   *360   * @internal361   * @param {string} rootID The root DOM ID for this node.362   * @param {ReactReconcileTransaction|ReactServerRenderingTransaction} transaction363   * @param {object} context364   * @return {string} The computed markup.365   */366  mountComponent: function(rootID, transaction, context) {367    this._rootNodeID = rootID;368    var props = this._currentElement.props;369    if (hasOwnProperty(COMPONENT_CLASSES, this._tag)) {370      if (hasOwnProperty(COMPONENT_CLASSES[this._tag], 'getNativeProps')) {371        props = COMPONENT_CLASSES[this._tag].getNativeProps(this, props, context);372      }373    }374    assertValidProps(this, props);375    if (__DEV__) {376      if (context[validateDOMNesting.ancestorInfoContextKey]) {377        validateDOMNesting(378          this._tag,379          this,380          context[validateDOMNesting.ancestorInfoContextKey]381        );382      }383    }384    var mountImage;385    // isn't useCreateElement always false?386    if (transaction.useCreateElement) {387      var ownerDocument = context[Mount.ownerDocumentContextKey];388      var el = ownerDocument.createElement(this._currentElement.type);389      DOMPropertyOperations.setAttributeForID(el, this._rootNodeID);390      // Populate node cache391      Mount.getID(el);392      this._updateDOMProperties({}, props, transaction, el);393      this._createInitialChildren(transaction, props, context, el);394      mountImage = el;395    } else {396      var tagOpen = this._createOpenTagMarkupAndPutListeners(transaction, props);397      var tagContent = this._createContentMarkup(transaction, props, context);398      if (!tagContent && omittedCloseTags[this._tag]) {399        mountImage = tagOpen + '/>';400      } else {401        mountImage =402          tagOpen + '>' + tagContent + '</' + this._currentElement.type + '>';403      }404    }405    return mountImage;406  },407  /**408   * Creates markup for the open tag and all attributes.409   *410   * This method has side effects because events get registered.411   *412   * Iterating over object properties is faster than iterating over arrays.413   * @see http://jsperf.com/obj-vs-arr-iteration414   *415   * @private416   * @param {ReactReconcileTransaction|ReactServerRenderingTransaction} transaction417   * @param {object} props418   * @return {string} Markup of opening tag.419   */420  _createOpenTagMarkupAndPutListeners: function(transaction, props) {421    var ret = '<' + this._currentElement.type;422    for (var propKey in props) {423      if (!hasOwnProperty(props, propKey)) {424        continue;425      }426      var propValue = props[propKey];427      if (propValue == null) {428        continue;429      }430      if (hasOwnProperty(EventEmitter.registrationNameModules, propKey)) {431        enqueuePutListener(this._rootNodeID, propKey, propValue, transaction);432      } else {433        if (propKey === STYLE) {434          if (propValue) {435            if (__DEV__) {436              // See `_updateDOMProperties`. style block437              this._previousStyle = propValue;438            }439            propValue = this._previousStyleCopy = assign({}, props.style);440          }441          propValue = CSSPropertyOperations.createMarkupForStyles(propValue);442        }443        var markup = null;444        if (this._tag != null && isCustomComponent(this._tag, props)) {445          markup = DOMPropertyOperations.createMarkupForCustomAttribute(propKey, propValue);446        } else {447          markup = DOMPropertyOperations.createMarkupForProperty(propKey, propValue);448        }449        if (markup) {450          ret += ' ' + markup;451        }452      }453    }454    // For static pages, no need to put React ID and checksum. Saves lots of455    // bytes.456    if (transaction.renderToStaticMarkup) {457      return ret;458    }459    var markupForID = DOMPropertyOperations.createMarkupForID(this._rootNodeID);460    return ret + ' ' + markupForID;461  },462  /**463   * Creates markup for the content between the tags.464   *465   * @private466   * @param {ReactReconcileTransaction|ReactServerRenderingTransaction} transaction467   * @param {object} props468   * @param {object} context469   * @return {string} Content markup.470   */471  _createContentMarkup: function(transaction, props, context) {472    var ret = '';473    // Intentional use of != to avoid catching zero/false.474    var innerHTML = props.dangerouslySetInnerHTML;475    if (innerHTML != null) {476      if (innerHTML.__html != null) {477        ret = innerHTML.__html;478      }479    } else {480      var contentToUse =481        CONTENT_TYPES[typeof props.children] ? props.children : null;482      var childrenToUse = contentToUse != null ? null : props.children;483      if (contentToUse != null) {484        // TODO: Validate that text is allowed as a child of this node485        ret = escapeTextContentForBrowser(contentToUse);486      } else if (childrenToUse != null) {487        var mountImages = this.mountChildren(488          childrenToUse,489          transaction,490          processChildContext(context, this)491        );492        ret = mountImages.join('');493      }494    }495    if (newlineEatingTags[this._tag] && ret.charAt(0) === '\n') {496      // text/html ignores the first character in these tags if it's a newline497      // Prefer to break application/xml over text/html (for now) by adding498      // a newline specifically to get eaten by the parser. (Alternately for499      // textareas, replacing "^\n" with "\r\n" doesn't get eaten, and the first500      // \r is normalized out by HTMLTextAreaElement#value.)501      // See: <http://www.w3.org/TR/html-polyglot/#newlines-in-textarea-and-pre>502      // See: <http://www.w3.org/TR/html5/syntax.html#element-restrictions>503      // See: <http://www.w3.org/TR/html5/syntax.html#newlines>504      // See: Parsing of "textarea" "listing" and "pre" elements505      //  from <http://www.w3.org/TR/html5/syntax.html#parsing-main-inbody>506      return '\n' + ret;507    } else {508      return ret;509    }510  },511  _createInitialChildren: function(transaction, props, context, el) {512    // Intentional use of != to avoid catching zero/false.513    var innerHTML = props.dangerouslySetInnerHTML;514    if (innerHTML != null) {515      if (innerHTML.__html != null) {516        setInnerHTML(el, innerHTML.__html);517      }518    } else {519      var contentToUse =520        CONTENT_TYPES[typeof props.children] ? props.children : null;521      var childrenToUse = contentToUse != null ? null : props.children;522      if (contentToUse != null) {523        // TODO: Validate that text is allowed as a child of this node524        setTextContent(el, contentToUse);525      } else if (childrenToUse != null) {526        var mountImages = this.mountChildren(527          childrenToUse,528          transaction,529          processChildContext(context, this)530        );531        for (var i = 0; i < mountImages.length; i++) {532          el.appendChild(mountImages[i]);533        }534      }535    }536  },537  /**538   * Receives a next element and updates the component.539   *540   * @internal541   * @param {ReactElement} nextElement542   * @param {ReactReconcileTransaction|ReactServerRenderingTransaction} transaction543   * @param {object} context544   */545  receiveComponent: function(nextElement, transaction, context) {546    var prevElement = this._currentElement;547    this._currentElement = nextElement;548    this.updateComponent(transaction, prevElement, nextElement, context);549  },550  /**551   * Updates a native DOM component after it has already been allocated and552   * attached to the DOM. Reconciles the root DOM node, then recurses.553   *554   * @param {ReactReconcileTransaction} transaction555   * @param {ReactElement} prevElement556   * @param {ReactElement} nextElement557   * @internal558   * @overridable559   */560  updateComponent: function(transaction, prevElement, nextElement, context) {561    var lastProps = prevElement.props;562    var nextProps = this._currentElement.props;563    if (hasOwnProperty(COMPONENT_CLASSES, this._tag)) {564      if (hasOwnProperty(COMPONENT_CLASSES[this._tag], 'getNativeProps')) {565        lastProps = COMPONENT_CLASSES[this._tag].getNativeProps(this, lastProps);566        nextProps = COMPONENT_CLASSES[this._tag].getNativeProps(this, nextProps);567      }568    }569    assertValidProps(this, nextProps);570    this._updateDOMProperties(lastProps, nextProps, transaction, null);571    this._updateDOMChildren(572      lastProps,573      nextProps,574      transaction,575      processChildContext(context, this)576    );577  },578  /**579   * Reconciles the properties by detecting differences in property values and580   * updating the DOM as necessary. This function is probably the single most581   * critical path for performance optimization.582   *583   * TODO: Benchmark whether checking for changed values in memory actually584   *       improves performance (especially statically positioned elements).585   * TODO: Benchmark the effects of putting this at the top since 99% of props586   *       do not change for a given reconciliation.587   * TODO: Benchmark areas that can be improved with caching.588   *589   * @private590   * @param {object} lastProps591   * @param {object} nextProps592   * @param {ReactReconcileTransaction} transaction593   * @param {?DOMElement} node594   */595  _updateDOMProperties: function(lastProps, nextProps, transaction, node) {596    var propKey;597    var styleName;598    var styleUpdates;599    for (propKey in lastProps) {600      if (hasOwnProperty(nextProps, propKey) || !hasOwnProperty(lastProps, propKey)) {601        continue;602      }603      if (propKey === STYLE) {604        var lastStyle = this._previousStyleCopy;605        for (styleName in lastStyle) {606          if (hasOwnProperty(lastStyle, styleName)) {607            styleUpdates = styleUpdates || {};608            styleUpdates[styleName] = '';609          }610        }611        this._previousStyleCopy = null;612      } else if (hasOwnProperty(EventEmitter.registrationNameModules, propKey)) {613        if (lastProps[propKey]) {614          // Only call deleteListener if there was a listener previously or615          // else willDeleteListener gets called when there wasn't actually a616          // listener (e.g., onClick={null})617          EventEmitter.deleteListener(this._rootNodeID, propKey);618        }619      } else if (620          DOMProperty.properties[propKey] ||621          DOMProperty.isCustomAttribute(propKey)) {622        if (!node) {623          node = Mount.getNode(this._rootNodeID);624        }625        DOMPropertyOperations.deleteValueForProperty(node, propKey);626      }627    }628    for (propKey in nextProps) {629      var nextProp = nextProps[propKey];630      var lastProp = propKey === STYLE ?631        this._previousStyleCopy :632        lastProps[propKey];633      if (!hasOwnProperty(nextProps, propKey) || nextProp === lastProp) {634        continue;635      }636      if (propKey === STYLE) {637        if (nextProp) {638          if (__DEV__) {639            checkAndWarnForMutatedStyle(640              this._previousStyleCopy,641              this._previousStyle,642              this643            );644            this._previousStyle = nextProp;645          }646          nextProp = this._previousStyleCopy = assign({}, nextProp);647        } else {648          this._previousStyleCopy = null;649        }650        if (lastProp) {651          // Unset styles on `lastProp` but not on `nextProp`.652          for (styleName in lastProp) {653            if (hasOwnProperty(lastProp, styleName) &&...

ReactDOMComponent.js

Source:ReactDOMComponent.js

...26  };27  var STYLE = keyOf({style: null});28  var ELEMENT_NODE_TYPE = 1;29  var styleMutationWarning = {};30  function checkAndWarnForMutatedStyle(style1, style2, component) {31    if (style1 == null || style2 == null) {32      return ;33    }34    if (shallowEqual(style1, style2)) {35      return ;36    }37    var componentName = component._tag;38    var owner = component._currentElement._owner;39    var ownerName;40    if (owner) {41      ownerName = owner.getName();42    }43    var hash = ownerName + '|' + componentName;44    if (styleMutationWarning.hasOwnProperty(hash)) {45      return ;46    }47    styleMutationWarning[hash] = true;48    'production' !== process.env.NODE_ENV ? warning(false, '`%s` was passed a style object that has previously been mutated. ' + 'Mutating `style` is deprecated. Consider cloning it beforehand. Check ' + 'the `render` %s. Previous style: %s. Mutated style: %s.', componentName, owner ? 'of `' + ownerName + '`' : 'using <' + componentName + '>', JSON.stringify(style1), JSON.stringify(style2)) : undefined;49  }50  var BackendIDOperations = null;51  function assertValidProps(component, props) {52    if (!props) {53      return ;54    }55    if ('production' !== process.env.NODE_ENV) {56      if (voidElementTags[component._tag]) {57        'production' !== process.env.NODE_ENV ? warning(props.children == null && props.dangerouslySetInnerHTML == null, '%s is a void element tag and must not have `children` or ' + 'use `props.dangerouslySetInnerHTML`.', component._tag) : undefined;58      }59    }60    if (props.dangerouslySetInnerHTML != null) {61      !(props.children == null) ? 'production' !== process.env.NODE_ENV ? invariant(false, 'Can only set one of `children` or `props.dangerouslySetInnerHTML`.') : invariant(false) : undefined;62      !(typeof props.dangerouslySetInnerHTML === 'object' && '__html' in props.dangerouslySetInnerHTML) ? 'production' !== process.env.NODE_ENV ? invariant(false, '`props.dangerouslySetInnerHTML` must be in the form `{__html: ...}`. ' + 'Please visit https://fb.me/react-invariant-dangerously-set-inner-html ' + 'for more information.') : invariant(false) : undefined;63    }64    if ('production' !== process.env.NODE_ENV) {65      'production' !== process.env.NODE_ENV ? warning(props.innerHTML == null, 'Directly setting property `innerHTML` is not permitted. ' + 'For more information, lookup documentation on `dangerouslySetInnerHTML`.') : undefined;66      'production' !== process.env.NODE_ENV ? warning(!props.contentEditable || props.children == null, 'A component is `contentEditable` and contains `children` managed by ' + 'React. It is now your responsibility to guarantee that none of ' + 'those nodes are unexpectedly modified or duplicated. This is ' + 'probably not intentional.') : undefined;67    }68    !(props.style == null || typeof props.style === 'object') ? 'production' !== process.env.NODE_ENV ? invariant(false, 'The `style` prop expects a mapping from style properties to values, ' + 'not a string. For example, style={{marginRight: spacing + \'em\'}} when ' + 'using JSX.') : invariant(false) : undefined;69  }70  function enqueuePutListener(id, registrationName, listener, transaction) {71    if ('production' !== process.env.NODE_ENV) {72      'production' !== process.env.NODE_ENV ? warning(registrationName !== 'onScroll' || isEventSupported('scroll', true), 'This browser doesn\'t support the `onScroll` event') : undefined;73    }74    var container = ReactMount.findReactContainerForID(id);75    if (container) {76      var doc = container.nodeType === ELEMENT_NODE_TYPE ? container.ownerDocument : container;77      listenTo(registrationName, doc);78    }79    transaction.getReactMountReady().enqueue(putListener, {80      id: id,81      registrationName: registrationName,82      listener: listener83    });84  }85  function putListener() {86    var listenerToPut = this;87    ReactBrowserEventEmitter.putListener(listenerToPut.id, listenerToPut.registrationName, listenerToPut.listener);88  }89  var omittedCloseTags = {90    'area': true,91    'base': true,92    'br': true,93    'col': true,94    'embed': true,95    'hr': true,96    'img': true,97    'input': true,98    'keygen': true,99    'link': true,100    'meta': true,101    'param': true,102    'source': true,103    'track': true,104    'wbr': true105  };106  var newlineEatingTags = {107    'listing': true,108    'pre': true,109    'textarea': true110  };111  var voidElementTags = assign({'menuitem': true}, omittedCloseTags);112  var VALID_TAG_REGEX = /^[a-zA-Z][a-zA-Z:_\.\-\d]*$/;113  var validatedTagCache = {};114  var hasOwnProperty = ({}).hasOwnProperty;115  function validateDangerousTag(tag) {116    if (!hasOwnProperty.call(validatedTagCache, tag)) {117      !VALID_TAG_REGEX.test(tag) ? 'production' !== process.env.NODE_ENV ? invariant(false, 'Invalid tag: %s', tag) : invariant(false) : undefined;118      validatedTagCache[tag] = true;119    }120  }121  function processChildContext(context, inst) {122    if ('production' !== process.env.NODE_ENV) {123      context = assign({}, context);124      var info = context[validateDOMNesting.ancestorInfoContextKey];125      context[validateDOMNesting.ancestorInfoContextKey] = validateDOMNesting.updatedAncestorInfo(info, inst._tag, inst);126    }127    return context;128  }129  function ReactDOMComponent(tag) {130    validateDangerousTag(tag);131    this._tag = tag;132    this._renderedChildren = null;133    this._previousStyle = null;134    this._previousStyleCopy = null;135    this._rootNodeID = null;136  }137  ReactDOMComponent.displayName = 'ReactDOMComponent';138  ReactDOMComponent.Mixin = {139    construct: function(element) {140      this._currentElement = element;141    },142    mountComponent: function(rootID, transaction, context) {143      this._rootNodeID = rootID;144      assertValidProps(this, this._currentElement.props);145      if ('production' !== process.env.NODE_ENV) {146        if (context[validateDOMNesting.ancestorInfoContextKey]) {147          validateDOMNesting(this._tag, this, context[validateDOMNesting.ancestorInfoContextKey]);148        }149      }150      var tagOpen = this._createOpenTagMarkupAndPutListeners(transaction);151      var tagContent = this._createContentMarkup(transaction, context);152      if (!tagContent && omittedCloseTags[this._tag]) {153        return tagOpen + '/>';154      }155      return tagOpen + '>' + tagContent + '</' + this._tag + '>';156    },157    _createOpenTagMarkupAndPutListeners: function(transaction) {158      var props = this._currentElement.props;159      var ret = '<' + this._tag;160      for (var propKey in props) {161        if (!props.hasOwnProperty(propKey)) {162          continue;163        }164        var propValue = props[propKey];165        if (propValue == null) {166          continue;167        }168        if (registrationNameModules.hasOwnProperty(propKey)) {169          enqueuePutListener(this._rootNodeID, propKey, propValue, transaction);170        } else {171          if (propKey === STYLE) {172            if (propValue) {173              if ('production' !== process.env.NODE_ENV) {174                this._previousStyle = propValue;175              }176              propValue = this._previousStyleCopy = assign({}, props.style);177            }178            propValue = CSSPropertyOperations.createMarkupForStyles(propValue);179          }180          var markup = DOMPropertyOperations.createMarkupForProperty(propKey, propValue);181          if (markup) {182            ret += ' ' + markup;183          }184        }185      }186      if (transaction.renderToStaticMarkup) {187        return ret;188      }189      var markupForID = DOMPropertyOperations.createMarkupForID(this._rootNodeID);190      return ret + ' ' + markupForID;191    },192    _createContentMarkup: function(transaction, context) {193      var ret = '';194      var props = this._currentElement.props;195      var innerHTML = props.dangerouslySetInnerHTML;196      if (innerHTML != null) {197        if (innerHTML.__html != null) {198          ret = innerHTML.__html;199        }200      } else {201        var contentToUse = CONTENT_TYPES[typeof props.children] ? props.children : null;202        var childrenToUse = contentToUse != null ? null : props.children;203        if (contentToUse != null) {204          ret = escapeTextContentForBrowser(contentToUse);205        } else if (childrenToUse != null) {206          var mountImages = this.mountChildren(childrenToUse, transaction, processChildContext(context, this));207          ret = mountImages.join('');208        }209      }210      if (newlineEatingTags[this._tag] && ret.charAt(0) === '\n') {211        return '\n' + ret;212      } else {213        return ret;214      }215    },216    receiveComponent: function(nextElement, transaction, context) {217      var prevElement = this._currentElement;218      this._currentElement = nextElement;219      this.updateComponent(transaction, prevElement, nextElement, context);220    },221    updateComponent: function(transaction, prevElement, nextElement, context) {222      assertValidProps(this, this._currentElement.props);223      this._updateDOMProperties(prevElement.props, transaction);224      this._updateDOMChildren(prevElement.props, transaction, processChildContext(context, this));225    },226    _updateDOMProperties: function(lastProps, transaction) {227      var nextProps = this._currentElement.props;228      var propKey;229      var styleName;230      var styleUpdates;231      for (propKey in lastProps) {232        if (nextProps.hasOwnProperty(propKey) || !lastProps.hasOwnProperty(propKey)) {233          continue;234        }235        if (propKey === STYLE) {236          var lastStyle = this._previousStyleCopy;237          for (styleName in lastStyle) {238            if (lastStyle.hasOwnProperty(styleName)) {239              styleUpdates = styleUpdates || {};240              styleUpdates[styleName] = '';241            }242          }243          this._previousStyleCopy = null;244        } else if (registrationNameModules.hasOwnProperty(propKey)) {245          if (lastProps[propKey]) {246            deleteListener(this._rootNodeID, propKey);247          }248        } else if (DOMProperty.isStandardName[propKey] || DOMProperty.isCustomAttribute(propKey)) {249          BackendIDOperations.deletePropertyByID(this._rootNodeID, propKey);250        }251      }252      for (propKey in nextProps) {253        var nextProp = nextProps[propKey];254        var lastProp = propKey === STYLE ? this._previousStyleCopy : lastProps[propKey];255        if (!nextProps.hasOwnProperty(propKey) || nextProp === lastProp) {256          continue;257        }258        if (propKey === STYLE) {259          if (nextProp) {260            if ('production' !== process.env.NODE_ENV) {261              checkAndWarnForMutatedStyle(this._previousStyleCopy, this._previousStyle, this);262              this._previousStyle = nextProp;263            }264            nextProp = this._previousStyleCopy = assign({}, nextProp);265          } else {266            this._previousStyleCopy = null;267          }268          if (lastProp) {269            for (styleName in lastProp) {270              if (lastProp.hasOwnProperty(styleName) && (!nextProp || !nextProp.hasOwnProperty(styleName))) {271                styleUpdates = styleUpdates || {};272                styleUpdates[styleName] = '';273              }274            }275            for (styleName in nextProp) {...

Using AI Code Generation

1const {chromium} = require('playwright');2const browser = await chromium.launch();3const context = await browser.newContext();4const page = await context.newPage();5const { checkAndWarnForMutatedStyle } = require('playwright/lib/server/dom.js');6await checkAndWarnForMutatedStyle(page.mainFrame());7const {chromium} = require('playwright');8const browser = await chromium.launch();9const context = await browser.newContext();10const page = await context.newPage();11const { checkAndWarnForMutatedStyle } = require('playwright/lib/server/dom.js');12await checkAndWarnForMutatedStyle(page.mainFrame());13const {chromium} = require('playwright');14const browser = await chromium.launch();15const context = await browser.newContext();16const page = await context.newPage();17const { checkAndWarnForMutatedStyle } = require('playwright/lib/server/dom.js');18await checkAndWarnForMutatedStyle(page.mainFrame());19const {chromium} = require('playwright');20const browser = await chromium.launch();21const context = await browser.newContext();22const page = await context.newPage();23const { checkAndWarnForMutatedStyle } = require('playwright/lib/server/dom.js');24await checkAndWarnForMutatedStyle(page.mainFrame());25const {chromium} = require('playwright');26const browser = await chromium.launch();27const context = await browser.newContext();28const page = await context.newPage();29const { checkAndWarnForMutatedStyle } = require('playwright/lib/server/dom.js');30await checkAndWarnForMutatedStyle(page.mainFrame());31const {chromium} = require('playwright');32const browser = await chromium.launch();33const context = await browser.newContext();34const page = await context.newPage();35const { checkAndWarnForMutatedStyle } = require('playwright/lib/server/dom.js');36await checkAndWarnForMutatedStyle(page.mainFrame());

Using AI Code Generation

1const { checkAndWarnForMutatedStyle } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');2const { getAttribute } = require('playwright/lib/server/supplements/recorder/recorderUtils.js');3const { getAttribute } = require('playwright/lib/server/supplements/recorder/recorderUtils.js');4const style = getAttribute(element, 'style');5checkAndWarnForMutatedStyle(element, style);6const { checkAndWarnForMutatedStyle } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');7const { getAttribute } = require('playwright/lib/server/supplements/recorder/recorderUtils.js');8const style = getAttribute(element, 'style');9checkAndWarnForMutatedStyle(element, style);10const { getAttribute } = require('playwright/lib/server/supplements/recorder/recorderUtils.js');11const style = getAttribute(element, 'style');12const { checkAndWarnForMutatedStyle } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');13const style = getAttribute(element, 'style');14checkAndWarnForMutatedStyle(element, style);15const { getAttribute } = require('playwright/lib/server/supplements/recorder/recorderUtils.js');16const style = getAttribute(element, 'style');17const { checkAndWarnForMutatedStyle } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');18const style = getAttribute(element, 'style');19checkAndWarnForMutatedStyle(element, style);20const { getAttribute } = require('playwright/lib/server/supplements/recorder/recorderUtils.js');21const style = getAttribute(element, 'style');

Using AI Code Generation

1const playwright = require('playwright');2const { checkAndWarnForMutatedStyle } = require('playwright/lib/server/dom.js');3const { chromium } = playwright;4const browser = await chromium.launch();5const context = await browser.newContext();6const page = await context.newPage();7await checkAndWarnForMutatedStyle(page);8await browser.close();

Using AI Code Generation

1const { checkAndWarnForMutatedStyle } = require('playwright/lib/server/chromium/crPage');2const { parseCSS } = require('playwright/lib/server/common/cssParser');3const { assert } = require('playwright/lib/server/common/assert');4const { CSSUsage } = require('playwright/lib/server/common/cssUsage');5const { CSSCoverage } = require('playwright/lib/server/chromium/crCoverage');6const { createGuid } = require('playwright/lib/server/common/utils');7const cssCoverage = new CSSCoverage();8const cssUsage = new CSSUsage();9const styleSheetId = createGuid();10const cssText = 'div { color: red; }';11const styleSheetHeader = {12};13const parsedCSS = parseCSS(cssText);14cssCoverage.onStyleSheet(styleSheetHeader);15cssCoverage.onCSSStyleSheet(parsedCSS);16cssCoverage.onRuleUsage(parsedCSS, styleSheetId, 0, 0, 0, 0);17const styleSheetId2 = createGuid();18const cssText2 = 'div { color: green; }';19const styleSheetHeader2 = {20};21const parsedCSS2 = parseCSS(cssText2);22cssCoverage.onStyleSheet(styleSheetHeader2);23cssCoverage.onCSSStyleSheet(parsedCSS2);24cssCoverage.onRuleUsage(parsedCSS2, styleSheetId2, 0, 0, 0, 0);25const styleSheetId3 = createGuid();26const cssText3 = 'div { color: blue; }';27const styleSheetHeader3 = {28};29const parsedCSS3 = parseCSS(cssText3);30cssCoverage.onStyleSheet(styleSheetHeader3);31cssCoverage.onCSSStyleSheet(parsedCSS3);

Using AI Code Generation

1const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/utils/utils');2const { test, expect } = require('@playwright/test');3test('my test', async ({ page }) => {4  await checkAndWarnForMutatedStyle(page, 'div', 'margin');5});6const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/utils/utils');7SyntaxError: Cannot use import statement outside a module8I have tried to import the method in the following ways:9const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/utils/utils');10const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/utils/utils.js');11const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/utils/utils.mjs');12const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/utils/utils.ts');13const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/utils/utils.tsx');14const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/utils/utils.jsx');15const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/utils/utils.cjs');16const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/utils/utils.cjsx');17const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/utils/utils.json');18const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/utils/utils.json5');19const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/utils/utils.wasm');20const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/utils/utils.css');21const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/utils/utils.scss');22const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/utils/utils.sass');23const { checkAndWarnForMutatedStyle } = require('@playwright

Using AI Code Generation

1const { checkAndWarnForMutatedStyle } = require('@playwright/test/lib/helper');2const { test } = require('@playwright/test');3test('should warn', async ({ page }) => {4  await page.setContent(`<div style="background: green; padding: 10px; color: red">hello</div>`);5  const element = await page.$('div');6  const style = await element.evaluate(e => e.style);7  style.color = 'blue';8  checkAndWarnForMutatedStyle(style);9});10(node:8912) UnhandledPromiseRejectionWarning: Error: Styles are not computed, make sure to read them in one go via `elementHandle.evaluate(() => {11  const style = window.getComputedStyle(e);12  return {13  };14})`15    at checkAndWarnForMutatedStyle (D:\Github\playwright-test\test.js:5:5)16    at ExecutionContext._evaluateInternal (D:\Github\playwright-test\node_modules\playwright\lib\server\chromium\crExecutionContext.js:117:19)17    at runMicrotasks (<anonymous>)

Using AI Code Generation

1const {checkAndWarnForMutatedStyle} = require('playwright/lib/server/dom.js');2const {parseSelector} = require('playwright/lib/server/selectorParser.js');3const {createJSHandle} = require('playwright/lib/server/common.js');4const {createPage} = require('playwright/lib/server/page.js');5const {createFrame} = require('playwright/lib/server/frames.js');6const {ElementHandle} = require('playwright/lib/server/dom.js');7const {Frame} = require('playwright/lib/server/frames.js');8const {Page} = require('playwright/lib/server/page.js');9const {CDPSession} = require('playwright/lib/server/cdpsession.js');10const {JSHandle} = require('playwright/lib/server/common.js');11const {helper} = require('playwright/lib/helper.js');12const {debugError} = require('playwright/lib/helper.js');13const {assert} = require('playwright/lib/helper.js');14const {FFOX, CHROMIUM, WEBKIT} = require('playwright/lib/helper.js');15const {debug} = require('playwright/lib/helper.js');16const {getExceptionMessage} = require('playwright/lib/helper.js');17const {TimeoutError} = require('playwright/lib/errors.js');18const {EvaluationFailed} = require('playwright/lib/errors.js');19const {EvaluationArgument} = require('playwright/lib/errors.js');20const {EvaluationArgs} = require('playwright/lib/errors.js');21const {EvaluationScriptReturn} = require('playwright/lib/errors.js');22const {EvaluationScript} = require('playwright/lib/errors.js');23const {EvaluationString} = require('playwright/lib/errors.js');24const {EvaluationStringReturn} = require('playwright/lib/errors.js');25const {EvaluationStringArgs} = require('playwright/lib/errors.js');26const {DOMWorld} = require('playwright/lib/server/domworld.js');27const {ExecutionContext} = require('playwright/lib/server/executionContext.js');28const {ElementHandleChannel} = require('playwright/lib/server/channels.js');29const {ElementHandleInitializer} = require('playwright/lib/server/channels.js');30const {FrameChannel} = require('playwright/lib/server/channels.js');31const {FrameInitializer} = require('playwright/lib/server/channels.js');32const {PageChannel} = require('playwright/lib/server/channels.js');33const {

Using AI Code Generation

1const { checkAndWarnForMutatedStyle } = require('playwright/lib/server/dom.js');2const test = async () => {3  const testNode = document.createElement('div');4  testNode.setAttribute('style', 'color: red;');5  const result = checkAndWarnForMutatedStyle(testNode);6  console.log(result);7};8test();9  {10    important: false11  }

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.