Best JavaScript code snippet using playwright-internal
ReactWorkLoop.js
Source: ReactWorkLoop.js
...9let workInProgress = null;1011export function scheduleUpdateOnFiber(fiber) {12 const fiberRoot = markUpdateLaneFromFiberToRoot(fiber);13 performSyncWorkOnRoot(fiberRoot);14}1516/**17 * æ¾å°æ顶级çfiberèç¹ï¼æ顶级çfiberèç¹æ²¡æparentæé18 */19function markUpdateLaneFromFiberToRoot(sourceFiber) {20 let node = sourceFiber;21 let parent = node.return;22 while (parent) {23 node = parent;24 parent = node.parent;25 }26 return node.stateNode;27}2829function performSyncWorkOnRoot(fiberRoot) {30 workInProgressRoot = fiberRoot;31 workInProgress = createWorkInProgress(workInProgressRoot.current);3233 workLoopSync(); // æ§è¡å·¥ä½å¾ªç¯34 commitRoot() // æ交修æ¹çDOM35}3637function workLoopSync() {38 while (workInProgress) {39 performUnitOfWork(workInProgress);40 }41}4243/**
...
index.js
Source: index.js
...19function render(element, root) {20 // console.log(element)21 let fiberRoot = legacyCreateRootFromDOMContainer(element, root);22 23 performSyncWorkOnRoot(fiberRoot)24}25function legacyCreateRootFromDOMContainer (element, root) { 26 return {27 stateNode: root,28 props: {29 children: [element]30 }31 }32}33function performSyncWorkOnRoot(fiberRoot){34 workInProgressRoot = fiberRoot;35 nextUnitOfWork = workInProgressRoot;36 37 workLoopSync()38 39}40// æ§è¡ä»»å¡å¾ªç¯41function workLoopSync () { 42 43 while(nextUnitOfWork != null){44 nextUnitOfWork = performUnitOfWork(nextUnitOfWork)45 }46 47 if (!nextUnitOfWork) {...
FiberWorkLoop.js
Source: FiberWorkLoop.js
...43}44export function scheduleUpdateOnFiber(45 fiber46) {47 performSyncWorkOnRoot(fiber.stateNode)48}49function performSyncWorkOnRoot(root) {50 renderRootSync(root)51 //AcommitRoot(root)52}53function renderRootSync(root) {54 if (workInProgressRoot !== root) {55 // Mount56 prepareFreshStack(root)57 }58 workLoopSync()59}60function workLoopSync() {61 while(workInProgress !== null) {62 performUnitOfWork(workInProgress)63 }...
4.5.ReactFiberWorkLoop.js
Source: 4.5.ReactFiberWorkLoop.js
...30function scheduleSyncCallback(callback){31 syncQueue.push(callback)32}33//æ§è¡æ¸²æä»»å¡34function performSyncWorkOnRoot(workInProgress){35 let root = workInProgress;36 console.log('å¼å§è°åä»»å¡')37 while(workInProgress){38 if(workInProgress.tag === ClassComponent){39 let inst =workInProgress.stateNode;40 inst.state = processUpdateQueue(inst,workInProgress)41 inst.render(); //å¾å°ææ°ç¶æå,å°±å¯ä»¥è°ç¨renderæ¹æ³éè¿ææ°çèædomï¼éè¿diffæ´æ°42 }43 workInProgress = workInProgress.child44 }45 commitRoot(root)46}47function commitRoot(root){48}...
scheduleUpdateOnFiber.js
Source: scheduleUpdateOnFiber.js
1import { classComponent, HostRoot } from "./ReactWorkTags";2import { RootFiber } from './index';3import { ConcurrentMode, NoMode } from "./ReactTypeofMode";4const Queue = []5// éæ¹é6export const NoContext = /* */ 0b000;7const BatchedContext = /* */ 0b001;8let executionContext = NoContext;9const scheduleSyncCallback = (callback) => Queue.push(callback);10/**11 * è°å12 * @param {*} workInProgress 13 */14const performSyncWorkOnRoot = (workInProgress) => {15 const root = workInProgress;16 while (workInProgress) {17 if (workInProgress.tag === classComponent) {18 const instance = workInProgress.stateNode;19 // æ ¹æ®èç¶æåæ°ç¶æè¿è¡æ´æ°20 instance.state = workInProgress.updateQueue.reduce((pre, { payload }) => ({21 ...pre,22 ...(typeof payload === 'function' ? payload(pre) : payload)23 }), instance.state);24 instance.render();25 }26 workInProgress = workInProgress.child;27 }28 root.callbackPriority = 029}30/**31 * è°åº¦32 * @param {*} root 33 * @param {*} eventTime 34 * @returns 35 */36const ensureRootIsScheduled = (root, eventTime) => {37 // è·åèµéä¸é¢æé«çä¼å
级38 const newCallbackPriority = 12;39 const existingCallbackPriority = root?.callbackPriority;40 if (existingCallbackPriority === newCallbackPriority) {41 console.log('è°åº¦æ¬¡æ°');42 return;43 }44 scheduleSyncCallback(performSyncWorkOnRoot.bind(null, root));45 queueMicrotask(flushSyncCallbackQueue);46 root.callbackPriority = newCallbackPriority;47}48function flushSyncCallbackQueue() {49 Queue.forEach(cb => cb());50 Queue.length = 0;51}52/**53 * å¨è¯¥fiberä¸é¢è¿è¡è°åº¦æ´æ°54 * @param {*} fiber 55 * @param {*} lane 56 * @param {*} eventTime 57 */58const scheduleUpdateOnFiber = (fiber, lane, eventTime) => {59 // è°åº¦60 ensureRootIsScheduled(RootFiber, eventTime);61 if (executionContext === NoContext && (fiber.mode & ConcurrentMode) === NoMode) {62 flushSyncCallbackQueue();63 }64}65/**66 * æ¹éæ´æ°67 * @param {*} fn 68 */69export const batchedUpdates = (fn) => {70 executionContext |= BatchedContext;71 fn();72 executionContext = NoContext;73}...
状态更新调用路径.js
Source: 状态更新调用路径.js
1/*2 *3触åç¶ææ´æ°ï¼æ ¹æ®åºæ¯è°ç¨ä¸åæ¹æ³ï¼4 1.ReactDOM.render5 2.this.setState6 3.this.forceUpdate7 4.useState8 5.useReducer9 |10 |11 v12å建Update对象ï¼'updateContainer'ï¼13 |14 |15 v16ä»fiberå°rootï¼`markUpdateLaneFromFiberToRoot`ï¼17 ï¼ä»è§¦åç¶ææ´æ°çfiberä¸ç´åä¸éåå°rootFiberï¼å¹¶è¿årootFiberãï¼18 |19 |20 v21è°åº¦æ´æ°ï¼`ensureRootIsScheduled`ï¼ åæ¥/å¼æ¥22 以ä¸æ¯ensureRootIsScheduledææ ¸å¿çä¸æ®µä»£ç ï¼23 if (newCallbackPriority === SyncLanePriority) {24 // ä»»å¡å·²ç»è¿æï¼éè¦åæ¥æ§è¡renderé¶æ®µ25 newCallbackNode = scheduleSyncCallback(26 performSyncWorkOnRoot.bind(null, root)27 );28 } else {29 // æ ¹æ®ä»»å¡ä¼å
级å¼æ¥æ§è¡renderé¶æ®µ30 var schedulerPriorityLevel = lanePriorityToSchedulerPriority(31 newCallbackPriority32 );33 newCallbackNode = scheduleCallback(34 schedulerPriorityLevel,35 performConcurrentWorkOnRoot.bind(null, root)36 );37 }38 |39 |40 v41renderé¶æ®µï¼`performSyncWorkOnRoot` æ `performConcurrentWorkOnRoot`ï¼42 |43 |44 v45commité¶æ®µï¼`commitRoot`ï¼...
ReactFiberWorkLoop.js
Source: ReactFiberWorkLoop.js
...9 * @param {*} fiber 10 */11export function scheduleUpdateOnFiber(fiber) {12 const fiberRoot = markUpdateLaneFromFiberToRoot(fiber);13 performSyncWorkOnRoot(fiberRoot);14}15/**16 * æ ¹æ®èçfiberæ åæ´æ°å¯¹è±¡å建æ°çfiberæ ï¼ç¶åæ ¹æ®æ°çfiberæ æ´æ°çå®DOM17 * @param {*} fiberRoot 18 */19function performSyncWorkOnRoot(fiberRoot) {20 workInProgressRoot = fiberRoot;21 workInProgress = createWorkInProgress(workInProgressRoot.current);22 console.log(workInProgress);23}24function markUpdateLaneFromFiberToRoot(sourceFiber) {25 let node = sourceFiber;26 let parent = node.return;27 while (parent) {28 node = parent;29 parent = parent.parent;30 }31 //nodeå
¶å®è¯å®fiberæ çæ ¹èç¹ï¼å
¶å®å°±æ¯ hostRootFiber .stateNode div#root32 return node.stateNode;33}
updateState.js
Source: updateState.js
1// 触åç¶ææ´æ°2// |3// v4// å建Update对象5// |6// v7// ä»fiberå°root8// |9// v10// è°åº¦æ´æ°11// |12// v13// renderé¶æ®µ - performSyncWorkOnRoot æ performConcurrentWorkOnRoot14// |15// v...
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3const browser = await chromium.launch({ headless: false });4const context = await browser.newContext();5const page = await context.newPage();6await page.screenshot({ path: `example.png` });7await browser.close();8})();
Using AI Code Generation
1const { performSyncWorkOnRoot } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');2const { RecorderSupplement } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');3const { Frame } = require('playwright/lib/server/chromium/crPage.js');4const { Page } = require('playwright/lib/server/chromium/crPage.js');5const { ElementHandle } = require('playwright/lib/server/chromium/crElementHandle.js');6const { JSHandle } = require('playwright/lib/server/chromium/crJSHandle.js');7const { helper } = require('playwright/lib/server/helper.js');8const frame = new Frame(new Page(new RecorderSupplement()));9const elementHandle = new ElementHandle(new JSHandle(new Page(new RecorderSupplement())), {});10const jsHandle = new JSHandle(new Page(new RecorderSupplement()));11const helperObject = new helper();12performSyncWorkOnRoot(frame, elementHandle, jsHandle, helperObject);
Using AI Code Generation
1const { performSyncWorkOnRoot } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');2const { RecorderSupplement } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');3const { Page } = require('playwright/lib/server/page.js');4const { Frame } = require('playwright/lib/server/frame.js');5const { ElementHandle } = require('playwright/lib/server/dom.js');6const { chromium } = require('playwright');7(async () => {8 const browser = await chromium.launch();9 const page = await browser.newPage();10 const element = await page.$('text=Get started');11 await element.click();12 await page.waitForTimeout(5000);13 await browser.close();14})();15const { helper } = require('playwright/lib/server/helper.js');16const { PageSupplement } = require('playwright/lib/server/pageSupplement.js');17const { FrameSupplement } = require('playwright/lib/server/frameSupplement.js');18const { ElementHandleSupplement } = require('playwright/lib/server/elementHandleSupplement.js');19const { RecorderSupplement } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');20const { Page } = require('playwright/lib/server/page.js');21const { Frame } = require('playwright/lib/server/frame.js');22const { ElementHandle } = require('playwright/lib/server/dom.js');23module.exports = {24};25function performSyncWorkOnRoot(root, callback) {26 const supplement = getSupplement(root);27 return supplement._performSyncWork(callback);28}29function getSupplement(root) {30 if (root instanceof Page)31 return root._pageSupplement(RecorderSupplement);32 if (root instanceof Frame)33 return root._frameSupplement(RecorderSupplement);34 if (root instanceof ElementHandle)35 return root._elementHandleSupplement(RecorderSupplement);36 throw new Error('Unknown root type');37}38const { helper } = require('playwright/lib/server/helper.js');39const { PageSupplement } = require('playwright/lib/server/pageSupplement.js');40const { FrameSupplement } = require('playwright/lib/server/frameSupplement.js');41const { ElementHandleSupplement } =
Using AI Code Generation
1const { Playwright } = require('playwright');2const playwright = new Playwright();3const browser = await playwright.chromium.launch();4const context = await browser.newContext();5const page = await context.newPage();6const { performSyncWorkOnRoot } = require('playwright/lib/internal/inspectorAdapters/inspectorAdapter');7await performSyncWorkOnRoot(page, 'Runtime.evaluate', { expression: '1 + 1' });8await browser.close();
Using AI Code Generation
1const path = require('path');2const playwright = require('playwright');3(async () => {4 const browser = await playwright['chromium'].launch({5 });6 const page = await browser.newPage();7 await page.goto(url);8 await page.waitForSelector('#btn');9 const result = await page.evaluate(() => {10 const root = document.getElementById('root');11 const btn = document.getElementById('btn');12 const { performSyncWorkOnRoot } = window['ReactDom'];13 const onCommit = performSyncWorkOnRoot(root, () => {14 btn.innerText = 'I am clicked';15 });16 onCommit.then(() => {17 console.log('I am clicked');18 });19 });20 await browser.close();21})();22const rootElement = document.getElementById('root');23const btn = document.createElement('button');24btn.innerText = 'Click me';25btn.id = 'btn';26rootElement.appendChild(btn);27btn.addEventListener('click', () => {28 const { unstable_batchedUpdates } = window['ReactDom'];29 unstable_batchedUpdates(() => {30 btn.innerText = 'I am clicked';31 });32});33{34 "scripts": {35 },36 "dependencies": {37 }38}
Using AI Code Generation
1const { Playwright } = require('playwright');2const { Internal } = require('playwright/lib/server/playwright');3const { Page } = require('playwright/lib/server/page');4const { Frame } = require('playwright/lib/server/frame');5const { JSHandle } = require('playwright/lib/server/jsHandle');6const { ElementHandle } = require('playwright/lib/server/elementHandler');7const { createJSHandle } = require('playwright/lib/server/frames');8const { createHandle } = require('playwright/lib/server/injected/injectedScript');9const playwright = new Playwright();10const internal = new Internal(playwright);11const page = new Page(internal, 'page1', null, null);12const frame = new Frame(page, 'frame1', null);13const jsHandle = createJSHandle(frame, createHandle('test'));14const elementHandle = new ElementHandle(frame, jsHandle, null);15const result = internal.performSyncWorkOnRoot(elementHandle, () => {16 return document.body;17});18console.log(result);
Using AI Code Generation
1const { getTestState } = require("@playwright/test");2const { performSyncWorkOnRoot } = require("@playwright/test/lib/server/supplements/recorder/recorderSupplement");3module.exports = {4 async test(testInfo) {5 const { page, context } = getTestState(testInfo);6 await page.click("text=Get started");7 await page.click("text=Go to docs");8 await page.click("text=Go to API");9 await page.click("text=Go to examples");10 await page.click("text=Go to blog");11 await page.click("text=Go to community");12 await page.click("text=Go to GitHub");13 await page.click("text=Go to Twitter");14 await page.click("text=Go to Discord");15 await page.click("text=Go to YouTube");16 await page.click("text=Go to Stack Overflow");17 performSyncWorkOnRoot(context);18 },19};20const { PlaywrightTestConfig } = require("@playwright/test");21const config = {22 {23 use: {24 },25 },26 use: {27 },28};29module.exports = config;30{31 "scripts": {32 },33 "dependencies": {34 }35}
Using AI Code Generation
1console.log("Hello");2await page.evaluate(() => {3 const root = document.getElementById('root');4 const container = document.createElement('div');5 container.id = 'container';6 root.appendChild(container);7 ReactDOM.render(<div>Test</div>, container);8});9await page.evaluate(() => {10 const root = document.getElementById('root');11 const container = document.getElementById('container');12 const work = ReactDOM.unmountComponentAtNode(container);13 console.log(work);14 root.removeChild(container);15});16console.log("Hello");17await page.evaluate(() => {18 const root = document.getElementById('root');19 const container = document.createElement('div');20 container.id = 'container';21 root.appendChild(container);22 ReactDOM.render(<div>Test</div>, container);23});24await page.evaluate(() => {25 const root = document.getElementById('root');26 const container = document.getElementById('container');27 const work = ReactDOM.unmountComponentAtNode(container);28 console.log(work);29 root.removeChild(container);30});31console.log("Hello");32await page.evaluate(() => {33 const root = document.getElementById('root');34 const container = document.createElement('div');35 container.id = 'container';36 root.appendChild(container);37 ReactDOM.render(<div>Test</div>, container);38});39await page.evaluate(() => {40 const root = document.getElementById('root');41 const container = document.getElementById('container');42 const work = ReactDOM.unmountComponentAtNode(container);43 console.log(work);44 root.removeChild(container);45});46console.log("Hello");47await page.evaluate(() => {48 const root = document.getElementById('root');49 const container = document.createElement('div');50 container.id = 'container';51 root.appendChild(container);52 ReactDOM.render(<div>Test</div>, container);53});54await page.evaluate(() => {55 const root = document.getElementById('root');56 const container = document.getElementById('container');57 const work = ReactDOM.unmountComponentAtNode(container);58 console.log(work);59 root.removeChild(container);60});61console.log("Hello");62await page.evaluate(() => {63 const root = document.getElementById('root');64 const container = document.createElement('div');
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
})
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