How to use getLeafNode method in Playwright Internal

Best JavaScript code snippet using playwright-internal

printEdge.js

Source: printEdge.js Github

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...19 setMap(root, edgeMap);20 for (let i = 0; i < height; i++) {21 console.log(edgeMap[i][0].data);22 }23 getLeafNode(root, edgeMap);24 for (let i = height - 1; i > -1; i--) {25 if (edgeMap[i][0] != edgeMap[i][1]) {26 console.log(edgeMap[i][1].data);27 }28 }29}30function getLeafNode(root, edgeMap, len = 0) {31 let leaf = [];32 if (!root) {33 return leaf;34 }35 if (root.left == null && root.right == null && root != edgeMap[len][0] && root != edgeMap[len][1]) {36 console.log(root.data);37 }38 getLeafNode(root.left, edgeMap, len + 1);39 getLeafNode(root.right, edgeMap, len + 1);40}41function setMap(root, edgeMap, len = 0) {42 if (!root) {43 return;44 }45 edgeMap[len][0] = edgeMap[len][0] ? edgeMap[len][0] : root;46 edgeMap[len][1] = root;47 setMap(root.left, edgeMap, len + 1);48 setMap(root.right, edgeMap, len + 1);49}50function getHeight(root, len = 0) {51 if (!root) {52 return len;53 }...

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getNodeForCharacterOffset.js

Source: getNodeForCharacterOffset.js Github

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...10 *11 * @param {DOMElement|DOMTextNode} node12 * @return {DOMElement|DOMTextNode}13 */​14function getLeafNode(node) {15 while (node && node.firstChild) {16 node = node.firstChild;17 }18 return node;19}20/​**21 * Get the next sibling within a container. This will walk up the22 * DOM if a node's siblings have been exhausted.23 *24 * @param {DOMElement|DOMTextNode} node25 * @return {?DOMElement|DOMTextNode}26 */​27function getSiblingNode(node) {28 while (node) {29 if (node.nextSibling) {30 return node.nextSibling;31 }32 node = node.parentNode;33 }34}35/​**36 * Get object describing the nodes which contain characters at offset.37 *38 * @param {DOMElement|DOMTextNode} root39 * @param {number} offset40 * @return {?object}41 */​42function getNodeForCharacterOffset(root, offset) {43 let node = getLeafNode(root);44 let nodeStart = 0;45 let nodeEnd = 0;46 while (node) {47 if (node.nodeType === TEXT_NODE) {48 nodeEnd = nodeStart + node.textContent.length;49 if (nodeStart <= offset && nodeEnd >= offset) {50 return {51 node: node,52 offset: offset - nodeStart,53 };54 }55 nodeStart = nodeEnd;56 }57 node = getLeafNode(getSiblingNode(node));58 }59}...

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Using AI Code Generation

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1const { getLeafNode } = require('playwright/​lib/​server/​dom.js');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const leafNode = await getLeafNode(page, 'input[name="q"]');8 console.log('leafNode', leafNode);9 await browser.close();10})();

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Using AI Code Generation

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1const { getLeafNode } = require('playwright/​lib/​server/​dom.js');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const element = await page.$('input[name="q"]');8 const leafNode = await getLeafNode(page, element);9 console.log(leafNode);10 await browser.close();11})();12{ name: 'input',13 attributes: { name: 'q' },14 style: {},15 dataset: {},

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Using AI Code Generation

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1const { getLeafNode } = require('playwright/​lib/​utils/​dom.js');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch({ headless: false });5 const context = await browser.newContext();6 const page = await context.newPage();7 const element = await page.$('text=Learn More');8 const leafNode = await getLeafNode(page, element);9 await leafNode.click();10 await browser.close();11})();

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Using AI Code Generation

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1const { getLeafNode } = require('playwright/​lib/​utils/​selectorParser');2const { parseSelector } = require('playwright/​lib/​utils/​selectorParser');3const { parseSelectorToChromium } = require('playwright/​lib/​server/​chromium/​selectors/​selectorParser');4const { parseSelectorToWebKit } = require('playwright/​lib/​server/​webkit/​selectors/​selectorParser');5const { parseSelectorToFirefox } = require('playwright/​lib/​server/​firefox/​selectors/​selectorParser');6const selector = '.foo';7const parsedSelector = parseSelector(selector);8const leafNode = getLeafNode(parsedSelector);9console.log(leafNode);10const chromiumSelector = parseSelectorToChromium(parsedSelector);11const webkitSelector = parseSelectorToWebKit(parsedSelector);12const firefoxSelector = parseSelectorToFirefox(parsedSelector);13console.log(chromiumSelector);14console.log(webkitSelector);15console.log(firefoxSelector);16const { getLeafNode } = require('playwright/​lib/​utils/​selectorParser');17const { parseSelector } = require('playwright/​lib/​utils/​selectorParser');18const { parseSelectorToChromium } = require('playwright/​lib/​server/​chromium/​selectors/​selectorParser');19const { parseSelectorToWebKit } = require('playwright/​lib/​server/​webkit/​selectors/​selectorParser');20const { parseSelectorToFirefox } = require('playwright/​lib/​server/​firefox/​selectors/​selectorParser');21const selector = '.foo';22const parsedSelector = parseSelector(selector);23const leafNode = getLeafNode(parsedSelector);24console.log(leafNode);25const chromiumSelector = parseSelectorToChromium(parsedSelector);26const webkitSelector = parseSelectorToWebKit(parsedSelector);27const firefoxSelector = parseSelectorToFirefox(parsedSelector);28console.log(chromiumSelector);29console.log(webkitSelector);30console.log(firefoxSelector);

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Using AI Code Generation

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1const { InternalAPI } = require('@playwright/​test/​lib/​server/​frames');2const { getLeafNode } = InternalAPI;3const { chromium } = require('playwright');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 const leafNode = getLeafNode(page.mainFrame());9 console.log(leafNode);10 await browser.close();11})();12{13 _page: Page {14 _browserContext: BrowserContext {

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Using AI Code Generation

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1const { getLeafNode } = require('playwright-core/​lib/​server/​dom.js');2const { getLeafNode } = require('playwright/​lib/​server/​dom.js');3const { chromium } = require('playwright');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 const elementHandle = await page.$('input[name="q"]');9 const leafNode = getLeafNode(elementHandle);10 console.log(leafNode);11 await browser.close();12})();

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Using AI Code Generation

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1const { getLeafNode } = require('playwright/​internal');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const leafNode = await getLeafNode(page, '.navbar__inner');8 console.log(leafNode);9 await browser.close();10})();

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Using AI Code Generation

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1const { getLeafNode } = require('playwright/​lib/​internal/​dom');2const button = document.querySelector('button');3const leafNode = getLeafNode(button);4console.log(leafNode);5const { getLeafNode } = require('playwright/​lib/​internal/​dom');6const button = document.querySelector('button');7const leafNode = getLeafNode(button);8console.log(leafNode);9const { getLeafNode } = require('playwright/​lib/​internal/​dom');10const button = document.querySelector('button');11const leafNode = getLeafNode(button);12console.log(leafNode);13const { getLeafNode } = require('playwright/​lib/​internal/​dom');14const button = document.querySelector('button');15const leafNode = getLeafNode(button);16console.log(leafNode);17const { getLeafNode } = require('playwright/​lib/​internal/​dom');18const button = document.querySelector('button');19const leafNode = getLeafNode(button);20console.log(leafNode);21const { getLeafNode } = require('playwright/​lib/​internal/​dom');22const button = document.querySelector('button');23const leafNode = getLeafNode(button);24console.log(leafNode);25const { getLeafNode } = require('playwright/​lib/​internal/​dom');26const button = document.querySelector('button');27const leafNode = getLeafNode(button);28console.log(leafNode);29const { getLeafNode } = require('playwright/​lib/​internal/​dom');30const button = document.querySelector('button');31const leafNode = getLeafNode(button);32console.log(leafNode);33const { getLeafNode } = require('playwright/​lib/​internal/​dom');34const button = document.querySelector('button');35const leafNode = getLeafNode(button);36console.log(leafNode);37const { getLeafNode } = require('playwright/​lib/​internal/​dom');38const button = document.querySelector('button');

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Using AI Code Generation

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1const { getLeafNode } = require('playwright/​lib/​server/​dom.js');2const { parse } = require('playwright/​lib/​server/​common/​parser.js');3const { getDocument } = require('playwright/​lib/​server/​dom.js');4const document = getDocument();5const node = parse(`#elementID`);6const leafNode = getLeafNode(document, node);7console.log(leafNode);8const document = getDocument();9const leafNode = getLeafNode(document, node);10console.log(leafNode);11const document = getDocument();12const node = parse(`div[id='elementID']`);13const leafNode = getLeafNode(document, node);14console.log(leafNode);15const document = getDocument();16const node = parse(`div[id='elementID']`);17const leafNode = getLeafNode(document, node);18console.log(leafNode);19const document = getDocument();20const node = parse(`div[id='elementID']`);21const leafNode = getLeafNode(document, node);22console.log(leafNode);23const document = getDocument();24const node = parse(`div[id='elementID']`);25const leafNode = getLeafNode(document, node);26console.log(leafNode);27const document = getDocument();28const node = parse(`div[id='elementID']`);29const leafNode = getLeafNode(document, node);30console.log(leafNode);31const document = getDocument();32const node = parse(`div[id='elementID']`);33const leafNode = getLeafNode(document, node);34console.log(leafNode);35const document = getDocument();36const node = parse(`div[id='elementID']`);37const leafNode = getLeafNode(document, node);38console.log(leafNode);

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Using AI Code Generation

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1const { getLeafNode } = require('playwright/​lib/​client/​selectorEngine');2const element = getLeafNode(document, 'text=Hello World');3console.log(element);4const { getLeafNode } = require('playwright/​lib/​client/​selectorEngine');5const element = getLeafNode(document, 'css=div');6console.log(element);7const { getLeafNode } = require('playwright/​lib/​client/​selectorEngine');8console.log(element);9const { getLeafNode } = require('playwright/​lib/​client/​selectorEngine');10const element = getLeafNode(document, 'data-testid=hello-world');11console.log(element);12const { getLeafNode } = require('playwright/​lib/​client/​selectorEngine');13const element = getLeafNode(document, 'data-test-id=hello-world');14console.log(element);15const { getLeafNode } = require('playwright/​lib/​client/​selectorEngine');16const element = getLeafNode(document, 'data-test=hello-world');17console.log(element);18const { getLeafNode } = require('playwright/​lib/​client/​selectorEngine');19const element = getLeafNode(document, 'data-testid=hello-world');20console.log(element);21const { getLeafNode } = require('playwright/​lib/​client/​selectorEngine');22const element = getLeafNode(document, 'data-test=hello-world');23console.log(element);24const { getLeafNode } = require('playwright/​lib/​client/​selectorEngine');25const element = getLeafNode(document, 'data-test-id=hello-world');26console.log(element);27const { getLeafNode } = require('playwright/​lib/​client/​selectorEngine');28const element = getLeafNode(document, 'data-testid=hello-world');29console.log(element);

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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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