How to use shouldAutoFocusHostComponent method in Playwright Internal

Best JavaScript code snippet using playwright-internal

new.js

Source: new.js Github

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...115 rootContainerInstance: Container,116 hostContext: HostContext,117 ): boolean {118 setInitialProperties(domElement, type, props, rootContainerInstance);119 return shouldAutoFocusHostComponent(type, props);120 },121 prepareUpdate(122 domElement: Instance,123 type: string,124 oldProps: Props,125 newProps: Props,126 rootContainerInstance: Container,127 hostContext: HostContext,128 ): null | Array<mixed> {129 if (__DEV__) {130 const hostContextDev = ((hostContext: any): HostContextDev);131 if (132 typeof newProps.children !== typeof oldProps.children &&133 (typeof newProps.children === 'string' ||134 typeof newProps.children === 'number')135 ) {136 const string = '' + newProps.children;137 const ownAncestorInfo = updatedAncestorInfo(138 hostContextDev.ancestorInfo,139 type,140 null,141 );142 validateDOMNesting(null, string, ownAncestorInfo);143 }144 }145 return diffProperties(146 domElement,147 type,148 oldProps,149 newProps,150 rootContainerInstance,151 );152 },153 shouldSetTextContent(type: string, props: Props): boolean {154 return (155 type === 'textarea' ||156 typeof props.children === 'string' ||157 typeof props.children === 'number' ||158 (typeof props.dangerouslySetInnerHTML === 'object' &&159 props.dangerouslySetInnerHTML !== null &&160 typeof props.dangerouslySetInnerHTML.__html === 'string')161 );162 },163 shouldDeprioritizeSubtree(type: string, props: Props): boolean {164 return !!props.hidden;165 },166 createTextInstance(167 text: string,168 rootContainerInstance: Container,169 hostContext: HostContext,170 internalInstanceHandle: Object,171 ): TextInstance {172 if (__DEV__) {173 const hostContextDev = ((hostContext: any): HostContextDev);174 validateDOMNesting(null, text, hostContextDev.ancestorInfo);175 }176 const textNode: TextInstance = createTextNode(text, rootContainerInstance);177 precacheFiberNode(internalInstanceHandle, textNode);178 return textNode;179 },180 now: ReactScheduler.now,181 isPrimaryRenderer: true,182 scheduleDeferredCallback: '',183 cancelDeferredCallback: '',184 /​/​ -------------------185 /​/​ Mutation186 /​/​ -------------------187 supportsMutation: true,188 commitMount(189 domElement: Instance,190 type: string,191 newProps: Props,192 internalInstanceHandle: Object,193 ): void {194 /​/​ Despite the naming that might imply otherwise, this method only195 /​/​ fires if there is an `Update` effect scheduled during mounting.196 /​/​ This happens if `finalizeInitialChildren` returns `true` (which it197 /​/​ does to implement the `autoFocus` attribute on the client). But198 /​/​ there are also other cases when this might happen (such as patching199 /​/​ up text content during hydration mismatch). So we'll check this again.200 if (shouldAutoFocusHostComponent(type, newProps)) {201 ((domElement: any):202 | HTMLButtonElement203 | HTMLInputElement204 | HTMLSelectElement205 | HTMLTextAreaElement).focus();206 }207 },208 commitUpdate(209 domElement: Instance,210 updatePayload: Array<mixed>,211 type: string,212 oldProps: Props,213 newProps: Props,214 internalInstanceHandle: Object,...

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ReactFiberHostConfig.js

Source: ReactFiberHostConfig.js Github

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...182 rootContainerInstance,183 hostContext184) => {185 setInitialProperties(domElement, type, props, rootContainerInstance);186 return shouldAutoFocusHostComponent(type, props);187};188const prepareForCommit = (containerInfo) => {189 eventsEnabled = isEnabled();190 selectionInformation = getSelectionInformation();191 setEnabled(false);192 return null;193};194const resetTextContent = (domElement) => {195 setTextContent(domElement, '');196};197const insertInContainerBefore = (container, child, beforeChild) => {198 if (container.nodeType === COMMENT_NODE) {199 container.parentNode.insertBefore(child, beforeChild);200 } else {...

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ReactDOMHostConfig.js

Source: ReactDOMHostConfig.js Github

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...107 return instance;108}109export function finalizeInitialChildren(domElement, type, props, rootContainerInstance, hostContext) {110 setInitialProperties(domElement, type, props, rootContainerInstance);111 return shouldAutoFocusHostComponent(type, props);112}113export function prepareUpdate(domElement, type, oldProps, newProps, rootContainerInstance, hostContext) {114 return diffProperties(115 domElement,116 type,117 oldProps,118 newProps,119 rootContainerInstance120 );121}122function shouldAutoFocusHostComponent(type, props) {123 switch (type) {124 case 'button':125 case 'input':126 case 'select':127 case 'textarea':128 return !!props.autoFocus;129 }130 return false;...

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tag.js

Source: tag.js Github

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...63 }64 65 return null;66 };67 function shouldAutoFocusHostComponent(type, props) {68 switch (type) {69 case 'button':70 case 'input':71 case 'select':72 case 'textarea':73 return !!props.autoFocus;74 }75 return false;76 }77 78 export {79 findInvalidAncestorForTag,80 shouldAutoFocusHostComponent81 }

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Using AI Code Generation

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1const { shouldAutoFocusHostComponent } = require('playwright/​lib/​utils/​autofocus');2const { chromium } = require('playwright');3const fs = 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.waitForSelector('input[name="q"]');9 await page.focus('input[name="q"]');10 await page.type('input[name="q"]', 'playwright');11 await page.keyboard.press('Enter');12 await page.waitForSelector('h3');13 const h3 = await page.$('h3');14 const text = await h3.innerText();15 fs.writeFileSync('test.txt', text);16 await browser.close();17})();

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Using AI Code Generation

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1test('shouldAutoFocusHostComponent', async ({ page }) => {2 await page.setContent(`<input autofocus/​>`);3 const shouldAutoFocusHostComponent = await page.evaluate(() => {4 const { shouldAutoFocusHostComponent } = require('playwright/​lib/​internal');5 return shouldAutoFocusHostComponent;6 });7 const input = page.locator('input');8 expect(await shouldAutoFocusHostComponent(input)).toBe(true);9});10test('shouldAutoFocusHostComponent', async ({ page }) => {11 await page.setContent(`<input autofocus/​>`);12 const shouldAutoFocusHostComponent = await page.evaluate(() => {13 const { shouldAutoFocusHostComponent } = require('playwright/​lib/​internal');14 return shouldAutoFocusHostComponent;15 });16 const input = page.locator('input');17 expect(await shouldAutoFocusHostComponent(input)).toBe(true);18});19test('shouldAutoFocusHostComponent', async ({ page }) => {20 await page.setContent(`<input autofocus/​>`);21 const shouldAutoFocusHostComponent = await page.evaluate(() => {22 const { shouldAutoFocusHostComponent } = require('playwright/​lib/​internal');23 return shouldAutoFocusHostComponent;24 });25 const input = page.locator('input');26 expect(await shouldAutoFocusHostComponent(input)).toBe(true);27});28test('shouldAutoFocusHostComponent', async ({ page }) => {29 await page.setContent(`<input autofocus/​>`);30 const shouldAutoFocusHostComponent = await page.evaluate(() => {31 const { shouldAutoFocusHostComponent } = require('playwright/​lib/​internal');32 return shouldAutoFocusHostComponent;33 });34 const input = page.locator('input');35 expect(await shouldAutoFocusHostComponent(input)).toBe(true);36});37test('shouldAutoFocusHostComponent', async ({ page }) => {38 await page.setContent(`<input autofocus/​>`);39 const shouldAutoFocusHostComponent = await page.evaluate(() => {40 const { shouldAutoFocusHostComponent } = require('playwright/​lib/​internal');

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Using AI Code Generation

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1const {shouldAutoFocusHostComponent} = require('playwright/​lib/​client/​automation');2const element = document.querySelector('input');3const result = shouldAutoFocusHostComponent(element);4console.log(result);5const {setAutoFocusedHostComponent} = require('playwright/​lib/​client/​automation');6const element = document.querySelector('input');7setAutoFocusedHostComponent(element);

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Using AI Code Generation

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1const { shouldAutoFocusHostComponent } = require("@playwright/​test/​lib/​api/​internalAPI");2console.log(shouldAutoFocusHostComponent('input'));3const { test } = require('@playwright/​test');4test('shouldAutoFocusHostComponent', async ({ page }) => {5 await page.click('text=Get started');6 await page.click('text=Docs');7 await page.click('text=API');8 await page.click('text=BrowserContext');9});

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Using AI Code Generation

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1const path = require('path');2const {shouldAutoFocusHostComponent} = require(3 path.join(__dirname, '..', '..', 'node_modules', 'playwright-core', 'lib',4 'server', 'chromium', 'crPage.js'));5const path = require('path');6const {shouldAutoFocusHostComponent} = require(7 path.join(__dirname, '..', '..', 'node_modules', 'playwright-core', 'lib',8 'server', 'chromium', 'crPage.js'));9console.log(shouldAutoFocusHostComponent('input'));10console.log(shouldAutoFocusHostComponent('div'));11const path = require('path');12const {shouldAutoFocusHostComponent} = require(13 path.join(__dirname, '..', '..', 'node_modules', 'playwright-core', 'lib',14 'server', 'chromium', 'crPage.js'));15console.log(shouldAutoFocusHostComponent('input'));16console.log(shouldAutoFocusHostComponent('div'));17const path = require('path');18const {shouldAutoFocusHostComponent} = require(19 path.join(__dirname, '..', '..', 'node_modules', 'playwright-core', 'lib',20 'server', 'chromium', 'crPage.js'));21console.log(shouldAutoFocusHostComponent('input'));22console.log(shouldAutoFocusHostComponent('div'));23const path = require('path');24const {shouldAutoFocusHostComponent} = require(25 path.join(__dirname, '..', '..', 'node_modules', 'playwright-core', 'lib',26 'server', 'chromium', 'crPage.js'));27console.log(shouldAutoFocusHostComponent('input'));28console.log(shouldAutoFocusHostComponent('div'));29const path = require('path');30const {shouldAutoFocusHostComponent

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StackOverFlow community discussions

Questions
Discussion

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
})
https://stackoverflow.com/questions/65477895/jest-playwright-test-callbacks-of-event-based-dom-library

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