How to use isVisibleTextNode method in Playwright Internal

Best JavaScript code snippet using playwright-internal

markup.js

Source: markup.js Github

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...5859 if ( node.nextSibling ) {60 /​/​ Skip over nodes that the user cannot see ...61 if ( isTextNode( node.nextSibling ) &&62 !isVisibleTextNode( node.nextSibling ) ) {63 return nextVisibleNode( node.nextSibling );64 }6566 /​/​ Skip over propping <br>s ...67 if ( isBR( node.nextSibling ) &&68 node.nextSibling === node.parentNode.lastChild ) {69 return nextVisibleNode( node.nextSibling ); 70 }7172 /​/​ Skip over empty editable elements ...73 if ( '' === node.nextSibling.innerHTML &&74 !isBlock( node.nextSibling ) ) {75 return nextVisibleNode( node.nextSibling );76 }7778 return node.nextSibling;79 }8081 if ( node.parentNode ) {82 return nextVisibleNode( node.parentNode );83 }8485 return null;86}8788function prevVisibleNode( node ) {89 if ( !node ) {90 return null;91 }9293 if ( node.previousSibling ) {94 /​/​ Skip over nodes that the user cannot see...95 if ( isTextNode( node.previousSibling ) &&96 !isVisibleTextNode( node.previousSibling ) ) {97 return prevVisibleNode( node.previousSibling );98 }99100 /​/​ Skip over empty editable elements ...101 if ( '' === node.previousSibling.innerHTML &&102 !isBlock( node.previousSibling ) ) {103 return prevVisibleNode( node.previouSibling );104 }105106 return node.previousSibling;107 }108109 if ( node.parentNode ) {110 return prevVisibleNode( node.parentNode );111 }112113 return null;114}115116/​**117 * Determines whether the given text node is visible to the the user,118 * based on our understanding that browsers will not display119 * superfluous white spaces.120 *121 * @param {HTMLEmenent} node The text node to be checked.122 */​123function isVisibleTextNode( node ) {124 return 0 < node.data.replace( /​\s+/​g, '' ).length;125}126127function isFrontPosition( node, offset ) {128 return ( 0 === offset ) ||129 ( offset <= node.data.length -130 node.data.replace( /​^\s+/​, '' ).length );131}132133function isBlockInsideEditable( $block ) {134 return $block.parent().hasClass( 'aloha-editable' );135}136137function isEndPosition( node, offset ) { ...

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content-editable.js

Source: content-editable.js Github

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2import * as arrayUtils from './​array';3/​/​nodes utils4function getOwnFirstVisibleTextNode (el) {5 var children = el.childNodes;6 if (!children.length && isVisibleTextNode(el))7 return el;8 return arrayUtils.find(children, node => isVisibleTextNode(node));9}10function getOwnFirstVisibleNode (el) {11 return arrayUtils.find(el.childNodes, node => isVisibleTextNode(node) ||12 !isSkippableNode(node) && getOwnFirstVisibleNode(node));13}14function getOwnPreviousVisibleSibling (el) {15 var sibling = null;16 var current = el;17 while (!sibling) {18 current = current.previousSibling;19 if (!current)20 break;21 else if (!isSkippableNode(current) && !isInvisibleTextNode(current)) {22 sibling = current;23 break;24 }25 }26 return sibling;27}28function hasChildren (node) {29 return node.childNodes && node.childNodes.length;30}31function isElementWithChildren (node) {32 return domUtils.isElementNode(node) || hasChildren(node);33}34/​/​NOTE: before such elements (like div or p) adds line breaks before and after it35/​/​ (except line break before first visible element in contentEditable parent)36/​/​ this line breaks is not contained in node values37/​/​so we should take it into account manually38function isNodeBlockWithBreakLine (parent, node) {39 var parentFirstVisibleChild = null;40 var firstVisibleChild = null;41 if (domUtils.isShadowUIElement(parent) || domUtils.isShadowUIElement(node))42 return false;43 if (!domUtils.isTheSameNode(node, parent) && node.childNodes.length && /​div|p/​.test(domUtils.getTagName(node))) {44 parentFirstVisibleChild = getOwnFirstVisibleNode(parent);45 if (!parentFirstVisibleChild || domUtils.isTheSameNode(node, parentFirstVisibleChild))46 return false;47 firstVisibleChild = getFirstVisibleTextNode(parentFirstVisibleChild);48 if (!firstVisibleChild || domUtils.isTheSameNode(node, firstVisibleChild))49 return false;50 return getOwnFirstVisibleTextNode(node);51 }52 return false;53}54function isNodeAfterNodeBlockWithBreakLine (parent, node) {55 var isRenderedNode = domUtils.isRenderedNode(node);56 var parentFirstVisibleChild = null;57 var firstVisibleChild = null;58 var previousSibling = null;59 if (domUtils.isShadowUIElement(parent) || domUtils.isShadowUIElement(node))60 return false;61 if (!domUtils.isTheSameNode(node, parent) &&62 (isRenderedNode && domUtils.isElementNode(node) && node.childNodes.length &&63 !/​div|p/​.test(domUtils.getTagName(node)) ||64 isVisibleTextNode(node) && !domUtils.isTheSameNode(node, parent) && node.nodeValue.length)) {65 if (isRenderedNode && domUtils.isElementNode(node)) {66 parentFirstVisibleChild = getOwnFirstVisibleNode(parent);67 if (!parentFirstVisibleChild || domUtils.isTheSameNode(node, parentFirstVisibleChild))68 return false;69 firstVisibleChild = getFirstVisibleTextNode(parentFirstVisibleChild);70 if (!firstVisibleChild || domUtils.isTheSameNode(node, firstVisibleChild))71 return false;72 }73 previousSibling = getOwnPreviousVisibleSibling(node);74 return previousSibling && domUtils.isElementNode(previousSibling) &&75 /​div|p/​.test(domUtils.getTagName(previousSibling)) && getOwnFirstVisibleTextNode(previousSibling);76 }77 return false;78}79export function getFirstVisibleTextNode (el) {80 var children = el.childNodes;81 var childrenLength = children.length;82 var curNode = null;83 var child = null;84 var isNotContentEditableElement = null;85 if (!childrenLength && isVisibleTextNode(el))86 return el;87 for (var i = 0; i < childrenLength; i++) {88 curNode = children[i];89 isNotContentEditableElement = domUtils.isElementNode(curNode) && !domUtils.isContentEditableElement(curNode);90 if (isVisibleTextNode(curNode))91 return curNode;92 else if (domUtils.isRenderedNode(curNode) && isElementWithChildren(curNode) && !isNotContentEditableElement) {93 child = getFirstVisibleTextNode(curNode);94 if (child)95 return child;96 }97 }98 return child;99}100export function getLastTextNode (el, onlyVisible) {101 var children = el.childNodes;102 var childrenLength = children.length;103 var curNode = null;104 var child = null;105 var isNotContentEditableElement = null;106 var visibleTextNode = null;107 if (!childrenLength && isVisibleTextNode(el))108 return el;109 for (var i = childrenLength - 1; i >= 0; i--) {110 curNode = children[i];111 isNotContentEditableElement = domUtils.isElementNode(curNode) && !domUtils.isContentEditableElement(curNode);112 visibleTextNode = domUtils.isTextNode(curNode) &&113 (onlyVisible ? !isInvisibleTextNode(curNode) : true);114 if (visibleTextNode)115 return curNode;116 else if (domUtils.isRenderedNode(curNode) && isElementWithChildren(curNode) && !isNotContentEditableElement) {117 child = getLastTextNode(curNode, false);118 if (child)119 return child;120 }121 }...

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isVisible.js

Source: isVisible.js Github

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...30 /​/​ display:contents is not rendered itself, but its child nodes are.31 for (let child = element.firstChild; child; child = child.nextSibling) {32 if (child.nodeType === 1 /​* Node.ELEMENT_NODE */​ && isVisible(child))33 return true;34 if (child.nodeType === 3 /​* Node.TEXT_NODE */​ && isVisibleTextNode(child))35 return true;36 }37 return false;38 }39 const rect = element.getBoundingClientRect();40 return rect.width > 0 && rect.height > 0;...

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Using AI Code Generation

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1const { isVisibleTextNode } = require('playwright/​lib/​internal/​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 text = await page.$eval('text=Open Source', (e) => e.textContent);8 const isVisible = isVisibleTextNode(text);9 console.log(isVisible);10 await browser.close();11})();

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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 const text = await page.$eval('text=Docs', (e) => e.textContent);6 console.log(text);7 await browser.close();8})();

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Using AI Code Generation

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1const { isVisibleTextNode } = require('playwright/​lib/​webkit/​dom.js');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 const dom = await page.mainFrame()._utilityContext().evaluateHandle(() => document);7 const text = await dom.evaluate(node => {8 const textNode = Array.from(node.childNodes).find(child => {9 return isVisibleTextNode(child);10 });11 return textNode.textContent;12 });13 console.log(text);14 await browser.close();15})();16const { chromium } = require('playwright');17(async () => {18 const browser = await chromium.launch();19 const page = await browser.newPage();20 const text = await page.textContent('body');21 console.log(text);22 await browser.close();23})();

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Using AI Code Generation

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1const { isVisibleTextNode } = require('playwright/​lib/​server/​dom.js');2const { getDocument } = require('playwright/​lib/​server/​dom.js');3const { getDocumentElement } = require('playwright/​lib/​server/​dom.js');4const { getFrameElement } = require('playwright/​lib/​server/​dom.js');5const { getFrameOwner } = require('playwright/​lib/​server/​dom.js');6const { getFrameWindow } = require('playwright/​lib/​server/​dom.js');7const { getInnerText } = require('playwright/​lib/​server/​dom.js');8const { getOuterHTML } = require('playwright/​lib/​server/​dom.js');9const { getOwnerFrame } = require('playwright/​lib/​server/​dom.js');10const { getOwnerPage } = require('playwright/​lib/​server/​dom.js');11const { getViewportSize } = require('playwright/​lib/​server/​dom.js');12const { isShadowHost } = require('playwright/​lib/​server/​dom.js');13const { isStaleElementError } = require('playwright/​lib/​server/​dom.js');14const { isTextElement } = require('playwright/​lib/​server/​dom.js');15const { isUserVisible } = require('playwright/​lib/​server/​dom.js');16const { isVisible } = require('playwright/​lib/​server/​dom.js');17const { parseSelector } = require('playwright/​lib/​server/​dom.js');18const { waitForVisible } = require('playwright/​lib/​server/​dom.js');19const { waitForVisibleAndStable } = require('playwright/​lib/​server/​dom.js');20const { waitForVisibleAndStableRect } = require('playwright/​lib/​server/​dom.js');21const { waitForVisibleAndStableSize } = require('playwright/​lib/​server/​dom.js');22const { waitForVisibleAndStableTransform } = require('playwright/​lib/​server/​dom.js');23const { waitForVisibleAndStableVisible } = require('playwright/​lib/​server/​dom.js');24const { waitForVisibleAndStableZIndex } = require('playwright/​lib/​server/​dom.js');25const { waitForVisibleAndStableZIndexAndOpacity } = require('playwright/​lib/​server/​dom.js');26const { waitForVisibleAndStableZIndexAndOpacityAndTransform } = require('playwright/​lib/​server/​dom.js');27const { waitForVisibleAndStableZIndexAndTransform } = require('playwright/​lib/​server/​dom.js');28const { waitForVisibleAndStableZIndexAndTransformAndOpacity } = require('playwright/​lib/​server/​dom.js');29const { waitForVisibleAndStableZ

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Using AI Code Generation

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1const { isVisibleTextNode } = require('playwright/​lib/​server/​dom.js');2const { parseHTML } = require('playwright/​lib/​server/​dom.js');3const { assert } = require('console');4</​html>`;5const document = parseHTML(html);6const div = document.querySelector('div');7assert(isVisibleTextNode(div.firstChild));8assert(!isVisibleTextNode(div.firstChild.nextSibling));9const { isVisibleTextNode } = require('playwright/​lib/​server/​dom.js');10const { parseHTML } = require('playwright/​lib/​server/​dom.js');11const { assert } = require('console');12</​html>`;13const document = parseHTML(html);14const div = document.querySelector('div');15assert(isVisibleTextNode(div.firstChild));16assert(!isVisibleTextNode(div.firstChild.nextSibling));17const { isVisibleTextNode } = require('playwright/​lib/​server/​dom.js');18const { parseHTML } = require('playwright/​lib/​server/​dom.js');19const { assert } = require('console');20</​html>`;21const document = parseHTML(html);22const div = document.querySelector('div');23assert(isVisibleTextNode(div.firstChild));24assert(!isVisibleTextNode(div.firstChild.nextSibling));25const { isVisibleTextNode } = require('playwright/​lib/​server/​dom.js');26const { parseHTML } = require('playwright/​lib/​server/​dom.js');27const { assert } = require('console');28</​html>`;29const document = parseHTML(html);30const div = document.querySelector('div');31assert(isVisibleTextNode(div.firstChild));

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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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