How to use reconcileSingleElement method in Playwright Internal

Best JavaScript code snippet using playwright-internal

MyReact.js

Source:MyReact.js Github

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...93 workInProgress.sibling = current.sibling;94 workInProgress.index = current.index;95 return workInProgress;96}97function reconcileSingleElement(returnFiber, element) {98 let type = element.type;99 let flag = null;100 if (element.$$typeof === Symbol.for("react.element")) {101 if (typeof type === "function") {102 if (type.prototype && type.prototype.isReactComponent) {103 flag = ClassComponent;104 } else if (typeof type === "string") {105 flag = HostComponent;106 }107 } else if (typeof type === "string") {108 flag = HostComponent;109 }110 let fiber = createFiber(flag, element.key, element.props);111 fiber.type = type;112 fiber.return = returnFiber;113 return fiber;114 }115}116function reconcileSingleTextNode(returnFiber, text) {117 let fiber = createFiber(HostText, null, text);118 fiber.return = returnFiber;119 return fiber;120}121function reconcileChildrenArray(workInProgress, nextChildren) {122 // 这个方法中,要通过index和key值去尽可能多的找到可以复用的dom节点123 // 这个函数就是react中最最复杂的diff算法124 let nowWorkInProgress = null;125 if (isFirstRender) {126 nextChildren.forEeach((reactElement, index) => {127 if (index === 0) {128 if (129 typeof reactElement === "string" ||130 typeof reactElement === "number"131 ) {132 workInProgress.child = reconcileSingleTextNode(133 workInProgress,134 reactElement135 );136 } else {137 workInProgress.child = reconcileSingleElement(138 workInProgress,139 reactElement140 );141 }142 nowWorkInProgress = workInProgress.child;143 } else {144 if (145 typeof reactElement === "string" ||146 typeof reactElement === "number"147 ) {148 workInProgress.sibling = reconcileSingleTextNode(149 workInProgress,150 reactElement151 );152 } else {153 workInProgress.sibling = reconcileSingleElement(154 workInProgress,155 reactElement156 );157 }158 nowWorkInProgress = nowWorkInProgress.sibling;159 }160 });161 return workInProgress.child;162 }163}164function reconcileChildrenFiber(workInProgress, nextChildren) {165 if (typeof nextChildren === "object" && !!nextChildren.$$typeof) {166 // 说明它是一个独生子,并且是react元素167 return reconcileSingleElement(workInProgress, nextChildren);168 }169 if (nextChildren instanceof Array) {170 // retrun reconcileChildrenArray(workInProgress, nextChildren)171 }172 if (typeof nextChildren === "string" || typeof nextChildren === "number") {173 // retrun reconcileSingleTextNode(workInProgress, nextChildren)174 }175 return null;176}177function reconcileChildren(workInProgress, nextChildren) {178 if (isFirstRender && !!workInProgress.alternate) {179 workInProgress.child = reconcileChildrenFiber(workInProgress, nextChildren);180 workInProgress.child.effectTag = Placement;181 } else {...

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diff.js

Source:diff.js Github

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...33// 我们可以从同级的节点数量将Diff分为两类:34// 1.当newChild类型为object、number、string,代表同级只有一个节点35// 2.当newChild类型为Array,同级有多个节点36//判断DOM节点是否可以复用37function reconcileSingleElement(38 returnFiber: Fiber,39 currentFirstChild: Fiber | null,40 element: ReactElement41): Fiber {42 const key = element.key;43 let child = currentFirstChild;44 // 首先判断是否存在对应DOM节点45 while (child !== null) {46 // 上一次更新存在DOM节点,接下来判断是否可复用47 // 首先比较key是否相同48 if (child.key === key) {49 // key相同,接下来比较type是否相同50 switch (child.tag) {51 // ...省略case...

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ReconcileChildFiber.js

Source:ReconcileChildFiber.js Github

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...17 clone.sibling = null;//清空弟弟 18 return clone;19 }2021 function reconcileSingleElement(returnFiber, currentFirstChild, element) {22 const key = element.key;23 let child = currentFirstChild;2425 // 通过循环遍历去寻找所有的子fiber节点,匹配当前的key26 while (child) {27 if (child.key === key) {28 // 先判断新老fiber的key是否相同29 // 判断老fiber的type和新的虚拟Dom的type是否相同30 if (child.type == element.type) {31 // 如果type也相同那么可以直接复用节点32 // 先删除剩下的fiber节点33 deleteRemainingChildren(returnFiber, child.sibling);34 const existing = useFiber(child, element.props);35 existing.return = returnFiber;36 return existing;37 } else {38 deleteRemainingChildren(returnFiber, child);39 break;40 }41 } else {42 // 若匹配上了key type不同,同样删除后续的老fiber43 deleteChild(returnFiber, child);44 }45 // 没有匹配到key,则继续向下寻找46 child = child.sibling;47 }4849 // 若上面的while一直都没找到key,说明该fiber属于新fiber,则创建该fiber50 const create = createFiberFromElement(element);51 create.return = returnFiber;52 return create;53 }5455 function deleteRemainingChildren(returnFiber, childToDelete) {56 let child = childToDelete;57 while (child) {58 deleteChild(returnFiber, child);59 child = child.sibling;60 }61 }6263 function deleteChild() {64 // 如果不需要跟着副作用, 说明是挂载,则直接返回65 if (!shouldTrackSideEffects) return;66 const lastEffect = returnFiber.lastEffect;67 if (lastEffect) {68 // 当副作用链存在时, 直接向lastEffect追加副作用69 lastEffect.nextEffect = childToDelete;70 returnFiber.lastEffect = childToDelete;71 } else {72 // 当副作用不存在时, 需要向fiberFiber和lastEffect添加副作用链73 returnFiber.firstEffect = returnFiber.lastEffect = childToDelete;74 }75 // 清空下一个副作用指向76 childToDelete.nextEffect = null;77 childToDelete.flags = Deletion;78 }7980 function reconcileChildFiber(returnFiber, currentFirstChild, newChild) {81 // 判断newChild是否是一个对象82 const isObject = typeof newChild === "object" && newChild;8384 if (isObject) {85 switch (newChild.$$typeof) {86 case REACT_ELEMENT_TYPE:87 return placeSingleChild(88 reconcileSingleElement(returnFiber, currentFirstChild, newChild)89 );90 }91 }9293 if (Array.isArray(newChild)) {94 return reconcileChildrenArray(returnFiber, currentFirstChild, newChild);95 }9697 // console.log(returnFiber, currentFirstChild, newChild);98 }99 return reconcileChildFiber;100}101102export const reconcileChildFiber = childReconciler(true); ...

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reconcileChildren.js

Source:reconcileChildren.js Github

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...10 if (isObject) {11 switch(newChild.$$typeof) {12 case 'REACT_ELEMENT_TYPE':13 return placeSingleChild(14 reconcileSingleElement(15 returnFiber,16 currentFirstChild,17 newChild18 )19 )20 }21 }22 if (typeof newChild === 'string' || typeof newChild === 'number') {23 return placeSingleChild(24 reconcileSingleTextNode(25 returnFiber,26 currentFirstChild,27 newChild28 )29 )30 }31 console.log('jijij')32 if (Array.isArray(newChild)) {33 return reconcileChildrenArray(34 returnFiber,35 currentFirstChild,36 newChild37 )38 }39}40function reconcileSingleElement(41 returnFiber,42 currentFirstChild,43 element44) {45 const key = element.key46 const child = currentFirstChild47 while(child !== null) {48 if (child.key === key) {49 if (child.elementType === element.type) {50 deleteRemainingChildren(returnFiber, child.sibling)51 const existing = useFiber(child, element.props)52 existing.return = returnFiber53 return existing54 }55 } else {56 deleteChild(returnFiber, child)57 }58 child = child.sibling59 }60 const created = createFiberFromElement(element)61 created.return = returnFiber62 return created63}64function deleteChild(returnFiber, childToDelete) {65 const deletions = returnFiber.deletions66 if (deletions === null) {67 returnFiber.deletions = [childToDelete]68 returnFiber.flags |= 'Deletion'69 } else {70 deletions.push(childToDelete)71 }72}73function deleteRemainingChildren(returnFiber, currentFirstChild) {74 let childToDelete = currentFirstChild75 while(childToDelete) {76 deleteChild(returnFiber, childToDelete)77 childToDelete = childToDelete.sibling78 }79 return null80}81function createFiberFromElement(82 element83) {84 const type = element.type85 const key = element.key86 const pendingProps = element.props87 const fiber = createFiberFromElement(88 type,89 key,90 pendingProps91 )92 return fiber93}94function createFiberFromElement(95 type,96 key,97 pendingProps98) {99 let fiberTag = 'IndeterminateComponent'100 if (typeof type === 'function') {101 if (shouldConstruct(type)) {102 fiberTag = ClassComponent103 }104 } else if (typeof type === 'string') {105 fiberTag = 'HostComponent'106 } else {107 }108 let resolvedType = type109 const fiber = createFiber(fiberTag, pendingProps, key)110 fiber.elementType = type111 fiber.type = resolvedType112 return fiber113}114const workInProgress = {115 deletions: null116}117const children = [118 {119 tag: 'you'120 },121 {122 tag: 'are'123 },124 {125 tag: 'summer'126 }127]128for (let i = 0; i < children.length - 1; i++) {129 children[i].sibling = children[i + 1]130}131deleteRemainingChildren(workInProgress, children[0])132console.log(workInProgress)133/*134reconcileSingleElement(135 workInProgress,136 null,137 element138)...

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ReactChildFiber.dev.js

Source:ReactChildFiber.dev.js Github

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...7var _ReactFiber = require("./ReactFiber");8var _ReactFiberFlags = require("./ReactFiberFlags");9function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }10function childReconciler(shouldTrackSideEffects) {11 function reconcileSingleElement(returnFiber, currentFirstChild, element) {12 var created = (0, _ReactFiber.createFiberFromElement)(element); //div#title13 created["return"] = returnFiber;14 return created;15 }16 function placeSingleChild(newFiber) {17 //如果当前需要跟踪父作用,并且当前这个新的fiber它的替身不存在18 if (shouldTrackSideEffects && !newFiber.alternate) {19 //给这个新fiber添加一个副作用,表示在未来提前阶段的DOM操作中会向真实DOM树中添加此节点20 newFiber.flags = _ReactFiberFlags.Placement;21 }22 return newFiber;23 }24 /**25 * 26 * @param {*} returnFiber 新的父fiber27 * @param {*} currentFirstChild current就是老的意思,老的第一个子fiber28 * @param {*} newChild 新的虚拟DOM29 */30 function reconcileChildFibers(returnFiber, currentFirstChild, newChild) {31 //判断newChild是不是一个对象,如果是的话说明新的虚拟DOM只有一个React元素节点32 var isObject = _typeof(newChild) === 'object' && newChild; //说明新的虚拟DOM是单节点33 if (isObject) {34 switch (newChild.$$typeof) {35 case _ReactSymbols.REACT_ELEMENT_TYPE:36 return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild));37 }38 }39 }40 return reconcileChildFibers;41}42var reconcileChildFibers = childReconciler(true);43exports.reconcileChildFibers = reconcileChildFibers;44var mountChildFibers = childReconciler(false);...

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ReactChildFiber.js

Source:ReactChildFiber.js Github

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1import { REACT_ELEMENT_TYPE } from "./ReactSymbols";2import { createFiberFromElement } from './ReactFiber';3import { Placement } from './ReactFiberFlags';4function childReconciler(shouldTrackSideEffects) {5 function reconcileSingleElement(returnFiber, currentFirstChild, element) {6 const created = createFiberFromElement(element);//div#title7 created.return = returnFiber;8 return created;9 }10 function placeSingleChild(newFiber) {11 //如果当前需要跟踪父作用,并且当前这个新的fiber它的替身不存在12 if (shouldTrackSideEffects && !newFiber.alternate) {13 //给这个新fiber添加一个副作用,表示在未来提前阶段的DOM操作中会向真实DOM树中添加此节点14 newFiber.flags = Placement;15 }16 return newFiber;17 }18 /**19 * 20 * @param {*} returnFiber 新的父fiber21 * @param {*} currentFirstChild current就是老的意思,老的第一个子fiber22 * @param {*} newChild 新的虚拟DOM23 */24 function reconcileChildFibers(returnFiber, currentFirstChild, newChild) {25 //判断newChild是不是一个对象,如果是的话说明新的虚拟DOM只有一个React元素节点26 const isObject = typeof newChild === 'object' && (newChild);27 //说明新的虚拟DOM是单节点28 if (isObject) {29 switch (newChild.$$typeof) {30 case REACT_ELEMENT_TYPE:31 return placeSingleChild(reconcileSingleElement(32 returnFiber, currentFirstChild, newChild33 ));34 }35 }36 }37 return reconcileChildFibers;38}39export const reconcileChildFibers = childReconciler(true);...

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reconciler.js

Source:reconciler.js Github

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1import { isNullOrUndefined, isNull } from '../shared';2export function reconcileChildren () {3}4export function replaceSingleChild () {}5export function reconcileSingleElement (returnFiber, currentFirstFiber, element) {6 const { key, type } = element;7 const child = currentFirstFiber;8 while (!isNull(child)) {9 if (child.key === key) {10 11 } else {12 deleteChild(returnFiber, child);13 }14 child = child.sibling;15 }16 if (type === REACT_FRAGMENT_TYPE) {17 const created = createFiberFromFragment();18 19 created.return = returnFiber;20 21 return created;22 } else {23 const created = createFiberFromElement(element, returnFiber.mode);24 created.ref = coerceRef(returnFiber, currentFirstFiber, element);25 created.return = returnFiber;26 return created;27 }28}29function deleteChild () {...

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reconcileSingleElement.js

Source:reconcileSingleElement.js Github

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...4const currentFirstChild = null5const element = {6 key: 'mykey'7}8const ret = reconcileSingleElement(9 returnFiber,10 currentFirstChild,11 element12)...

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Using AI Code Generation

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1const { chromium } = require('playwright');2const { reconcileSingleElement } = require('playwright/lib/server/dom.js');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await page.waitForTimeout(5000);8 const element = await page.$('input[name=q]');9 const result = await reconcileSingleElement(page, element);10 console.log(result);11 await browser.close();12})();

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Using AI Code Generation

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1const { chromium } = require('playwright');2const { reconcileSingleElement } = require('playwright/lib/server/dom.js');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 const handle = await page.$('input[name="q"]');7 const element = await reconcileSingleElement(page, handle);8 console.log(element.outerHTML);9 await browser.close();10})();11import { chromium } from 'playwright';12import { reconcileSingleElement } from 'playwright/lib/server/dom.js';13(async () => {14 const browser = await chromium.launch();15 const page = await browser.newPage();16 const handle = await page.$('input[name="q"]');17 const element = await reconcileSingleElement(page, handle);18 console.log(element.outerHTML);19 await browser.close();20})();

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Using AI Code Generation

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1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const page = await browser.newPage();5 await page.waitForSelector('input[name="q"]');6 const input = await page.$('input[name="q"]');7 await input.reconcileSingleElement('test');8 await browser.close();9})();

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Using AI Code Generation

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1const { chromium } = require('playwright');2const { reconcileSingleElement } = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await reconcileSingleElement(page, 'input[aria-label="Search"]');8 await page.screenshot({ path: 'example.png' });9 await browser.close();

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Using AI Code Generation

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1const {chromium} = require('playwright');2const path = require('path');3const fs = require('fs');4(async () => {5 const browser = await chromium.launch({ headless: false });6 const context = await browser.newContext();7 const page = await context.newPage();8 const elementHandle = await page.$('input[name="q"]');9 const result = await elementHandle.evaluate(element => {10 const {reconcileSingleElement} = require('playwright/lib/server/dom.js');11 const {parse} = require('playwright/lib/server/common/html.js');12 const {toJSHandle} = require('playwright/lib/server/common/jshandle.js');13 const {createJSHandle} = require('playwright/lib/server/common/javascript.js');14 const doc = parse('<input name="q" value="hello">');15 const newElement = doc.querySelector('input');16 const result = reconcileSingleElement(element, newElement);17 return toJSHandle(createJSHandle(result));18 }, elementHandle);19 console.log(await result.jsonValue());20 await browser.close();21})();

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Using AI Code Generation

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1const { chromium } = require('playwright');2const { getTestState } = require('@playwright/test');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 await page.waitForSelector('text=Get started');7 const element = await page.$('text=Get started');8 const state = getTestState();9 const { internal } = state;10 const { reconcileSingleElement } = internal;11 const result = await reconcileSingleElement(element);12 console.log(result);13 await browser.close();14})();15{ _guid: 'guid-3', _page: Page {...}, _context: BrowserContext {...}, _remoteObject: RemoteObject {...}, _disposed: false, _initializer: { type: 'node', name: 'Get started', description: 'text=Get started', backendNodeId: 177, ... }, ... }16const { chromium } = require('playwright');17const { getTestState } = require('@playwright/test');18(async () => {19 const browser = await chromium.launch();20 const page = await browser.newPage();21 await page.waitForSelector('text=Get started');22 const element = await page.$('text=Get started');23 const state = getTestState();24 const { internal } = state;25 const { reconcileSingleElement } = internal;26 const result = await reconcileSingleElement(element);27 const { _guid } = result;28 const { getSelector } = internal;29 const selector = await getSelector(_guid);30 console.log(selector);31 await browser.close();32})();33const { chromium } = require('

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Using AI Code Generation

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1const { chromium } = require('playwright');2const { getInternalApi } = require('playwright/lib/server/browserType');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 const internalApi = getInternalApi(browser);7 await page.setContent('<button>Click me</button>');8 const button = await page.$('button');9 await internalApi.reconcileSingleElement(button, 'click');10 await browser.close();11})();

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Using AI Code Generation

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1const { chromium } = require('playwright');2const { reconcileSingleElement } = require('playwright/lib/server/dom');3const { readFileSync } = require('fs');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 await page.setContent(readFileSync('test.html', 'utf8'));9 const elementHandle = await page.$('div');10 const { error, html } = await reconcileSingleElement(11 );12 console.log('error', error);13 console.log('html', html);14 await browser.close();15})();

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Using AI Code Generation

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1const { chromium } = require('playwright');2const { reconcileSingleElement } = require('playwright/lib/server/supplements/recorder/recorderSupplement');3const { ElementHandle } = require('playwright/lib/server/dom');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 const element = await page.$('input#searchInput');9 const handle = new ElementHandle(page, element._remoteObject);10 const result = await reconcileSingleElement(page, handle);11 console.log(result);12 await browser.close();13})();14{ action: 'fill',15 options: { value: 'playwright' },16 selector: 'input#searchInput' }17const { chromium } = require('playwright');18const { reconcileSingleElement } = require('playwright/lib/server/supplements/recorder/recorderSupplement');19const { ElementHandle } = require('playwright/lib/server/dom');20(async () => {21 const browser = await chromium.launch();22 const context = await browser.newContext();23 const page = await context.newPage();24 const element = await page.$('input#searchInput');25 const handle = new ElementHandle(page, element._remoteObject);26 const result = await reconcileSingleElement(page, handle);27 console.log(result);28 await browser.close();29})();30const { chromium } = require('playwright');31const { reconcileSingleElement } = require('playwright/lib/server/supplements/recorder/recorderSupplement');32const { ElementHandle } = require('playwright/lib/server/dom');33(async () => {34 const browser = await chromium.launch();35 const context = await browser.newContext();36 const page = await context.newPage();37 const element = await page.$('input#searchInput');38 const handle = new ElementHandle(page, element._remoteObject);39 const result = await reconcileSingleElement(page, handle);

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Playwright tutorial

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