Best JavaScript code snippet using playwright-internal
Widget.js
Source: Widget.js
...56 if (!count)57 return;58 while (parentElement) {59 parentElement.__widgetCounter = (parentElement.__widgetCounter || 0) + count;60 parentElement = parentElement.parentElementOrShadowHost();61 }62 }63 static _decrementWidgetCounter(parentElement, childElement) {64 const count = (childElement.__widgetCounter || 0) + (childElement.__widget ? 1 : 0);65 if (!count)66 return;67 while (parentElement) {68 parentElement.__widgetCounter -= count;69 parentElement = parentElement.parentElementOrShadowHost();70 }71 }72 static __assert(condition, message) {73 if (!condition)74 throw new Error(message);75 }76 /**77 * @param {?Node} node78 */79 static focusWidgetForNode(node) {80 while (node) {81 if (node.__widget)82 break;83 node = node.parentNodeOrShadowHost();84 }85 if (!node)86 return;87 let widget = node.__widget;88 while (widget._parentWidget) {89 widget._parentWidget._defaultFocusedChild = widget;90 widget = widget._parentWidget;91 }92 }93 markAsRoot() {94 UI.Widget.__assert(!this.element.parentElement, 'Attempt to mark as root attached node');95 this._isRoot = true;96 }97 /**98 * @return {?UI.Widget}99 */100 parentWidget() {101 return this._parentWidget;102 }103 /**104 * @return {!Array.<!UI.Widget>}105 */106 children() {107 return this._children;108 }109 /**110 * @param {!UI.Widget} widget111 * @protected112 */113 childWasDetached(widget) {114 }115 /**116 * @return {boolean}117 */118 isShowing() {119 return this._isShowing;120 }121 /**122 * @return {boolean}123 */124 shouldHideOnDetach() {125 if (!this.element.parentElement)126 return false;127 if (this._hideOnDetach)128 return true;129 for (const child of this._children) {130 if (child.shouldHideOnDetach())131 return true;132 }133 return false;134 }135 setHideOnDetach() {136 this._hideOnDetach = true;137 }138 /**139 * @return {boolean}140 */141 _inNotification() {142 return !!this._notificationDepth || (this._parentWidget && this._parentWidget._inNotification());143 }144 _parentIsShowing() {145 if (this._isRoot)146 return true;147 return !!this._parentWidget && this._parentWidget.isShowing();148 }149 /**150 * @param {function(this:UI.Widget)} method151 */152 _callOnVisibleChildren(method) {153 const copy = this._children.slice();154 for (let i = 0; i < copy.length; ++i) {155 if (copy[i]._parentWidget === this && copy[i]._visible)156 method.call(copy[i]);157 }158 }159 _processWillShow() {160 this._callOnVisibleChildren(this._processWillShow);161 this._isShowing = true;162 }163 _processWasShown() {164 if (this._inNotification())165 return;166 this.restoreScrollPositions();167 this._notify(this.wasShown);168 this._callOnVisibleChildren(this._processWasShown);169 }170 _processWillHide() {171 if (this._inNotification())172 return;173 this.storeScrollPositions();174 this._callOnVisibleChildren(this._processWillHide);175 this._notify(this.willHide);176 this._isShowing = false;177 }178 _processWasHidden() {179 this._callOnVisibleChildren(this._processWasHidden);180 }181 _processOnResize() {182 if (this._inNotification())183 return;184 if (!this.isShowing())185 return;186 this._notify(this.onResize);187 this._callOnVisibleChildren(this._processOnResize);188 }189 /**190 * @param {function(this:UI.Widget)} notification191 */192 _notify(notification) {193 ++this._notificationDepth;194 try {195 notification.call(this);196 } finally {197 --this._notificationDepth;198 }199 }200 wasShown() {201 }202 willHide() {203 }204 onResize() {205 }206 onLayout() {207 }208 ownerViewDisposed() {209 }210 /**211 * @param {!Element} parentElement212 * @param {?Node=} insertBefore213 */214 show(parentElement, insertBefore) {215 UI.Widget.__assert(parentElement, 'Attempt to attach widget with no parent element');216 if (!this._isRoot) {217 // Update widget hierarchy.218 let currentParent = parentElement;219 while (currentParent && !currentParent.__widget)220 currentParent = currentParent.parentElementOrShadowHost();221 UI.Widget.__assert(currentParent, 'Attempt to attach widget to orphan node');222 this._attach(currentParent.__widget);223 }224 this._showWidget(parentElement, insertBefore);225 }226 /**227 * @param {!UI.Widget} parentWidget228 */229 _attach(parentWidget) {230 if (parentWidget === this._parentWidget)231 return;232 if (this._parentWidget)233 this.detach();234 this._parentWidget = parentWidget;235 this._parentWidget._children.push(this);236 this._isRoot = false;237 }238 showWidget() {239 if (this._visible)240 return;241 UI.Widget.__assert(this.element.parentElement, 'Attempt to show widget that is not hidden using hideWidget().');242 this._showWidget(/** @type {!Element} */ (this.element.parentElement), this.element.nextSibling);243 }244 /**245 * @param {!Element} parentElement246 * @param {?Node=} insertBefore247 */248 _showWidget(parentElement, insertBefore) {249 let currentParent = parentElement;250 while (currentParent && !currentParent.__widget)251 currentParent = currentParent.parentElementOrShadowHost();252 if (this._isRoot) {253 UI.Widget.__assert(!currentParent, 'Attempt to show root widget under another widget');254 } else {255 UI.Widget.__assert(256 currentParent && currentParent.__widget === this._parentWidget,257 'Attempt to show under node belonging to alien widget');258 }259 const wasVisible = this._visible;260 if (wasVisible && this.element.parentElement === parentElement)261 return;262 this._visible = true;263 if (!wasVisible && this._parentIsShowing())264 this._processWillShow();265 this.element.classList.remove('hidden');...
attributes.js
Source: attributes.js
...61 }62 else if (attribute === 'false') {63 return false;64 }65 return hasAriaDisabled(parentElementOrShadowHost(element));66 }67 if (['BUTTON', 'INPUT', 'SELECT', 'TEXTAREA'].includes(element.tagName)) {68 if (element.hasAttribute('disabled')) {69 return true;70 }71 if (hasDisabledFieldSet(element)) {72 return true;73 }74 }75 if (hasAriaDisabled(element)) {76 return true;77 }78 return false;79}...
fragment.js
Source: fragment.js
...27 check(() => diva.tagName === 'DIV-A');28 check(() => divb.tagName === 'DIV-B');29 check(() => divc.tagName === 'DIV-C');30 check(() => shadow.nodeType === Node.DOCUMENT_FRAGMENT_NODE);31 check(() => shadow.parentElementOrShadowHost() === diva);32 check(() => divc.parentNode === diva);33 check(() => divb.parentElementOrShadowHost() === diva);34 check(() => diva.lastChild === inner);35 check(() => divb.getAttribute('foo1') === 'bar1');36 check(() => divb.getAttribute('foo2') === 'bar2');37 check(() => divb.divb === true);38 check(() => divc.textContent === 'Some text here And more text');39 check(() => divc.classList.contains('my-class-1'));40 check(() => divc.classList.contains('my-class-2'));41 check(() => divc.getAttribute('foo') === 'bar');42 check(() => diva.getAttribute('attr') === 'val');43 check(() => divb.getAttribute('attr') === null);44 f1.setState('state1', true);45 check(() => diva.getAttribute('attr') === 'val-state1');46 check(() => divb.getAttribute('attr') === 'val-state1');47 f1.setState('state1', true);...
utils.js
Source: utils.js
...13 }14 return Object.is(value, attrValue);15}16// Copied and changed from https://github.com/microsoft/playwright/blob/b0cd5b1420741ce79c8ed74cab6dd20101011c7c/packages/playwright-core/src/server/injected/selectorEvaluator.ts#L636-L64317function parentElementOrShadowHost(element) {18 if (element.parentElement) {19 return element.parentElement;20 }21 if (!element.parentNode) {22 return;23 }24 if (element.parentNode.nodeType === Node.DOCUMENT_FRAGMENT_NODE &&25 element.parentNode.host) {26 return element.parentNode.host;27 }28 return undefined;29}...
Using AI Code Generation
1const { parentElementOrShadowHost } = require('playwright-core/lib/webkit/webkit');2const { parentElementOrShadowHost } = require('playwright-core/lib/webkit/webkit');3const { parentElementOrShadowHost } = require('playwright-core/lib/webkit/webkit');4const { parentElementOrShadowHost } = require('playwright-core/lib/webkit/webkit');5const { parentElementOrShadowHost } = require('playwright-core/lib/webkit/webkit');6const { parentElementOrShadowHost } = require('playwright-core/lib/webkit/webkit');7const { parentElementOrShadowHost } = require('playwright-core/lib/webkit/webkit');8const { parentElementOrShadowHost } = require('playwright-core/lib/webkit/webkit');9const { parentElementOrShadowHost } = require('playwright-core/lib/webkit/webkit');10const { parentElementOrShadowHost } = require('playwright-core/lib/webkit/webkit');11const { parentElementOrShadowHost } = require('playwright-core/lib/webkit/webkit');12const { parentElementOrShadowHost } = require('playwright-core/lib/webkit/webkit');13const { parentElementOrShadowHost } = require('playwright-core/lib/webkit/webkit');14const { parentElementOrShadowHost } = require('playwright-core/lib/webkit/webkit');
Using AI Code Generation
1const parentElement = await this.page.evaluateHandle((element) => {2 return element.parentElementOrShadowHost();3}, elementHandle);4declare module 'playwright' {5 interface ElementHandle {6 parentElementOrShadowHost(): Promise<ElementHandle | null>;7 }8}9import { ElementHandle } from './dom';10import { JSHandle } from './jsHandle';11import { ElementHandleChannel, ElementHandleInitializer, ElementHandle } from '../server/dom';12import { Frame } from './frame';13import { Page } from './page';14import { Protocol } from 'devtools-protocol';15import { CDPSession } from './cjs/puppeteer/common/Connection.js';16export declare class ElementHandle extends JSHandle {17 readonly _context: dom.FrameExecutionContext;18 readonly _page: Page;19 readonly _remoteObject: Protocol.Runtime.RemoteObject;20 readonly _client: CDPSession;21 readonly _frame: Frame;22 constructor(context: dom.FrameExecutionContext, client: CDPSession, remoteObject: Protocol.Runtime.RemoteObject, page: Page, frame: Frame);23 asElement(): ElementHandle | null;24 ownerFrame(): Frame | null;25 contentFrame(): Frame | null;26 async parentElementOrShadowHost(): Promise<ElementHandle | null> {27 const { nodeId } = this._remoteObject;28 if (!nodeId)29 return null;30 const { parentId } = await this._client.send('DOM.getParentNode', { nodeId });31 if (!parentId)32 return null;33 const { node } = await this._client.send('DOM.describeNode', { nodeId: parentId });34 return this._adoptBackendNodeId(node.backendNodeId);35 }36}37import { ElementHandleChannel, ElementHandleInitializer, ElementHandle } from '../server/dom';38import { Frame } from './frame';39import { Page } from './page';40import { Protocol } from 'devtools-protocol';41import { CDPSession } from './cjs/puppeteer/common/Connection.js';42export declare class ElementHandle extends JSHandle {43 readonly _context: dom.FrameExecutionContext;
Using AI Code Generation
1const { parentElementOrShadowHost } = require('playwright/lib/internal/dom.js');2const element = await page.$('div');3const parentElement = await parentElementOrShadowHost(element);4console.log(parentElement);5await browser.close();6{7 _initializer: {8 {9 importedDocument: null,10 }11 importedDocument: null,12 },13 _page: Page {14 _browserContext: BrowserContext {},15 _pageBindings: Map(0) {},16 _workers: Map(0) {},17 _routes: Map(0) {},18 _keyboard: Keyboard {},19 _mouse: Mouse {},20 _touchscreen: Touchscreen {},21 _crPage: CRPage {22 _client: CDPSession {23 _events: [Object: null prototype] {},
Using AI Code Generation
1const element = await page.$('div');2const parent = await element.parentElementOrShadowHost();3console.log(parent);4await browser.close();5ElementHandle {6 _context: Context {7 _page: Page {8 _browser: Browser {9 _connection: Connection {10 _transport: WebSocketTransport {11 },12 _sessions: Map(1) { '0' => [Session] },13 _objects: Map(0) {},14 _callbacks: Map(0) {},15 _dispatchers: Map(0) {},16 },17 _process: ChildProcess {18 _events: [Object: null prototype] {19 },20 _handle: Process {21 [Symbol(kSpawnHandles)]: [Array]22 },
Using AI Code Generation
1const { parentElementOrShadowHost } = require('playwright/lib/client/selectorEngine');2const element = await page.$("button");3const parentElement = parentElementOrShadowHost(element);4const text = await parentElement.innerText();5console.log(text);6console.log(await parentElement.inner
Using AI Code Generation
1import { parentElementOrShadowHost } from 'playwright/lib/client/selectorEngine';2const selector = 'div[role="dialog"]';3const elementHandle = page.$(selector);4const shadowRoot = await parentElementOrShadowHost(elementHandle);5import { parentElementOrShadowHost } from 'playwright/lib/client/selectorEngine';6const selector = 'div[role="dialog"]';7const elementHandle = page.$(selector);8const shadowRoot = await parentElementOrShadowHost(elementHandle);
Using AI Code Generation
1const { _elementHandle } = await page.$('div');2const parent = await _elementHandle.parentElementOrShadowHost();3console.log(parent);4export async function parentElementOrShadowHost(5): Promise<ElementHandle | null> {6 const { shadowRoot, parent } = await this._page._delegate.getFrameElement(7 );8 if (shadowRoot) {9 return this._context._createHandle(shadowRoot);10 }11 if (parent) {12 return this._context._createHandle(parent);13 }14 return null;15}16export async function getFrameElement(17): Promise<{ shadowRoot: Protocol.Runtime.RemoteObject; parent: Protocol.Runtime.RemoteObject }> {18 const { shadowRoot, parent } = await this._client.send('DOM.getFrameElement', {19 });20 return { shadowRoot, parent };21}22async function send(this: CRSession, method: string, params: any): Promise<any> {23 const id = ++this._lastId;24 const message = { id, method, params };25 this._rawSend(JSON.stringify(message));26 const result = await new Promise<any>((fulfill, reject) => {27 this._callbacks.set(id, { fulfill, reject, method });28 });29 if (result.error) {30 const error = new Error(result.error.message);31 error.stack = result.error.stack;32 throw error;33 }34 return result.result;35}36_rawSend(this: CRSession, message: string): void {37 if (this._closed)38 throw new Error('Protocol error (' + message + '): Session closed. Most likely the page has been closed.');39 this._ws.send(message);40}
Jest + Playwright - Test callbacks of event-based DOM library
firefox browser does not start in playwright
Is it possible to get the selector from a locator object in playwright?
How to run a list of test suites in a single file concurrently in jest?
Running Playwright in Azure Function
firefox browser does not start in playwright
This question is quite close to a "need more focus" question. But let's try to give it some focus:
Does Playwright has access to the cPicker object on the page? Does it has access to the window object?
Yes, you can access both cPicker and the window object inside an evaluate call.
Should I trigger the events from the HTML file itself, and in the callbacks, print in the DOM the result, in some dummy-element, and then infer from that dummy element text that the callbacks fired?
Exactly, or you can assign values to a javascript variable:
const cPicker = new ColorPicker({
onClickOutside(e){
},
onInput(color){
window['color'] = color;
},
onChange(color){
window['result'] = color;
}
})
And then
it('Should call all callbacks with correct arguments', async() => {
await page.goto(`http://localhost:5000/tests/visual/basic.html`, {waitUntil:'load'})
// Wait until the next frame
await page.evaluate(() => new Promise(requestAnimationFrame))
// Act
// Assert
const result = await page.evaluate(() => window['color']);
// Check the value
})
Check out the latest blogs from LambdaTest on this topic:
Native apps are developed specifically for one platform. Hence they are fast and deliver superior performance. They can be downloaded from various app stores and are not accessible through browsers.
One of the essential parts when performing automated UI testing, whether using Selenium or another framework, is identifying the correct web elements the tests will interact with. However, if the web elements are not located correctly, you might get NoSuchElementException in Selenium. This would cause a false negative result because we won’t get to the actual functionality check. Instead, our test will fail simply because it failed to interact with the correct element.
Smartphones have changed the way humans interact with technology. Be it travel, fitness, lifestyle, video games, or even services, it’s all just a few touches away (quite literally so). We only need to look at the growing throngs of smartphone or tablet users vs. desktop users to grasp this reality.
As part of one of my consulting efforts, I worked with a mid-sized company that was looking to move toward a more agile manner of developing software. As with any shift in work style, there is some bewilderment and, for some, considerable anxiety. People are being challenged to leave their comfort zones and embrace a continuously changing, dynamic working environment. And, dare I say it, testing may be the most ‘disturbed’ of the software roles in agile development.
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.
Get 100 minutes of automation test minutes FREE!!