Test your AI Agents with the all-new Agent to Agent Testing Platform.Learn More
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.
Run Playwright Internal automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
