Best JavaScript code snippet using playwright-internal
page.js
Source: page.js
...487 }488 }489}490exports.PageBinding = PageBinding;491function addPageBinding(bindingName, needsHandle) {492 const binding = globalThis[bindingName];493 if (binding.__installed) return;494 globalThis[bindingName] = (...args) => {495 const me = globalThis[bindingName];496 if (needsHandle && args.slice(1).some(arg => arg !== undefined)) throw new Error(`exposeBindingHandle supports a single argument, ${args.length} received`);497 let callbacks = me['callbacks'];498 if (!callbacks) {499 callbacks = new Map();500 me['callbacks'] = callbacks;501 }502 const seq = (me['lastSeq'] || 0) + 1;503 me['lastSeq'] = seq;504 let handles = me['handles'];505 if (!handles) {...
helper.js
Source: helper.js
...125 }126 return `(${fun})(${args.map(serializeArgument).join(',')})`;127}128function pageBindingInitString(type, name) {129 function addPageBinding(type, bindingName) {130 /* Cast window to any here as we're about to add properties to it131 * via win[bindingName] which TypeScript doesn't like.132 */133 const win = window;134 const binding = win[bindingName];135 win[bindingName] = (...args) => {136 const me = window[bindingName];137 let callbacks = me.callbacks;138 if (!callbacks) {139 callbacks = new Map();140 me.callbacks = callbacks;141 }142 const seq = (me.lastSeq || 0) + 1;143 me.lastSeq = seq;...
expose-function.js
Source: expose-function.js
...4 const _pageBindings = new Map()5 return function exposeFunctionAgain(name, puppeteerFunction) {6 const expression = `(${addPageBinding.toString()})("${name}")`;7 return page.evaluate(expression)8 function addPageBinding(bindingName) {9 console.log('MY ADDING page binding', bindingName, 'on', document.location.href)10 const win = window;11 const binding = win[`${bindingName}`];12 console.log('binding', binding.toString())13 win[bindingName] = (...args) => {14 const me = window[bindingName];15 let callbacks = me.callbacks;16 if (!callbacks) {17 callbacks = new Map();18 me.callbacks = callbacks;19 }20 const seq = (me.lastSeq || 0) + 1;21 me.lastSeq = seq;22 const promise = new Promise((resolve, reject) => callbacks.set(seq, { resolve, reject }));...
Using AI Code Generation
1const { chromium, webkit, firefox } = require('playwright');2(async () => {3 const browser = await chromium.launch({ headless: false });4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.addBinding('bindingName', () => { console.log('hello'); });7 await page.evaluate(() => {8 bindingName();9 });10 await browser.close();11})();12const { chromium, webkit, firefox } = require('playwright');13(async () => {14 const browser = await chromium.launch({ headless: false });15 const context = await browser.newContext();16 await context.addInitScript(() => { console.log('hello'); });17 const page = await context.newPage();18 await browser.close();19})();20const { chromium, webkit, firefox } = require('playwright');21(async () => {22 const browser = await chromium.launch({ headless: false });23 const context = await browser.newContext();24 await context.addInitScript({ path: './path/to/file.js' });25 const page = await context.newPage();26 await browser.close();27})();
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 page.on('console', consoleObj => console.log(consoleObj.text()));7 await page.addInitScript(() => {8 window.playwright = {9 addPageBinding: (name, callback) => {10 window[name] = callback;11 },12 };13 });14 await page.addPageBinding('foo', (arg) => {15 console.log(arg);16 });17 await page.evaluate(() => {18 foo('bar');19 });20 await browser.close();21})();22const { chromium } = require('playwright');23(async () => {24 const browser = await chromium.launch();25 const context = await browser.newContext();26 const page = await context.newPage();27 page.on('console', consoleObj => console.log(consoleObj.text()));28 await page.exposeBinding('foo', (source, arg) => {29 console.log(arg);30 });31 await page.evaluate(() => {32 foo('bar');33 });34 await browser.close();35})();
Using AI Code Generation
1const { chromium } = require('playwright');2const { addPageBinding } = require('playwright/lib/server/pageBinding.js');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await addPageBinding(page, 'myBinding', (source, target) => {8 console.log('myBinding', source, target);9 });10 await browser.close();11})();
Using AI Code Generation
1const { addPageBinding } = require('playwright/lib/server/chromium/crPage');2const { Page } = require('playwright/lib/server/chromium/crPage');3const { Frame } = require('playwright/lib/server/chromium/crPage');4const { addBinding } = require('playwright/lib/server/cjs/polyfills/bindings');5const { BindingCall } = require('playwright/lib/server/cjs/polyfills/bindings');6const { addBinding } = require('playwright/lib/server/cjs/polyfills/bindings');7const { BindingCall } = require('playwright/lib/server/cjs/polyfills/bindings');8const { addBinding } = require('playwright/lib/server/cjs/polyfills/bindings');9const { BindingCall } = require('playwright/lib/server/cjs/polyfills/bindings');10const { addBinding } = require('playwright/lib/server/cjs/polyfills/bindings');11const { BindingCall } = require('playwright/lib/server/cjs/polyfills/bindings');12const { addBinding } = require('playwright/lib/server/cjs/polyfills/bindings');13const { BindingCall } = require('playwright/lib/server/cjs/polyfills/bindings');14const { addBinding } = require('playwright/lib/server/cjs/polyfills/bindings');15const { BindingCall } = require('playwright/lib/server/cjs/polyfills/bindings');16const { addBinding } = require('playwright/lib/server/cjs/polyfills/bindings');17const { BindingCall } = require('playwright/lib/server/cjs/polyfills/bindings');18const { addBinding } = require('playwright/lib/server/cjs/polyfills/bindings');19const { BindingCall } = require('playwright/lib/server/cjs/polyfills/bindings');20const { addBinding } = require
Using AI Code Generation
1const playwright = require('playwright');2(async () => {3 const browser = await playwright['chromium'].launch();4 const page = await browser.newPage();5 await page.addBinding('foo', () => 'bar');6 const result = await page.evaluate(() => foo);7 console.log(result);8 await browser.close();9})();10const playwright = require('playwright');11(async () => {12 const browser = await playwright['chromium'].launch();13 const page = await browser.newPage();14 await page.exposeBinding('foo', () => 'bar');15 const result = await page.evaluate(() => foo);16 console.log(result);17 await browser.close();18})();19const playwright = require('playwright');20(async () => {21 const browser = await playwright['chromium'].launch();22 const page = await browser.newPage();23 await page.exposeBinding('foo', () => 'bar', false);24 const result = await page.evaluate(() => foo);25 console.log(result);26 await browser.close();27})();28const playwright = require('playwright');29(async () => {30 const browser = await playwright['chromium'].launch();31 const page = await browser.newPage();32 await page.exposeBinding('foo', () => 'bar', true);33 const result = await page.evaluate(() => foo);34 console.log(result);35 await browser.close();36})();37const playwright = require('playwright');38(async () => {39 const browser = await playwright['chromium'].launch();40 const page = await browser.newPage();41 await page.exposeBinding('foo', () => 'bar', { handle: true });42 const result = await page.evaluate(() => foo);43 console.log(result);44 await browser.close();45})();46const playwright = require('playwright');47(async () => {48 const browser = await playwright['chromium'].launch();49 const page = await browser.newPage();50 await page.exposeBinding('foo', () => 'bar', { handle
Using AI Code Generation
1const { addPageBinding } = require('playwright/lib/server/chromium/crPage');2const { Page } = require('playwright/lib/server/chromium/crPage');3const { Frame } = require('playwright/lib/server/chromium/crPage');4const { FrameManager } = require('playwright/lib/server/chromium/crPage');5const { CDPSession } = require('playwright/lib/server/chromium/cdpsession');6const { addPageBinding } = require('playwright/lib/server/chromium/crPage');7const { Page } = require('playwright/lib/server/chromium/crPage');8const { Frame } = require('playwright/lib/server/chromium/crPage');9const { FrameManager } = require('playwright/lib/server/chromium/crPage');10const { CDPSession } = require('playwright/lib/server/chromium/cdpsession');11const { addPageBinding } = require('playwright/lib/server/chromium/crPage');12const { Page } = require('playwright/lib/server/chromium/crPage');13const { Frame } = require('playwright/lib/server/chromium/crPage');14const { FrameManager } = require('playwright/lib/server/chromium/crPage');15const { CDPSession } = require('playwright/lib/server/chromium/cdpsession');16const { addPageBinding } = require('playwright/lib/server/chromium/crPage');17const { Page } = require('playwright/lib/server/chromium/crPage');18const { Frame } = require('playwright/lib/server/chromium/crPage');19const { FrameManager } = require('playwright/lib/server/chromium/crPage');20const { CDPSession } = require('playwright/lib/server/chromium/cdpsession');21const { addPageBinding } = require('playwright/lib/server/chromium/crPage');22const { Page } = require('playwright/lib/server/chromium/crPage');23const { Frame } = require('playwright/lib/server/chromium/crPage');24const { FrameManager } = require('playwright/lib/server/chromium/crPage');25const { CDPSession }
Using AI Code Generation
1const { addPageBinding } = require('playwright');2const { Page } = require('playwright/lib/server/page');3Page.prototype.addBinding = addPageBinding;4const { chromium } = require('playwright');5(async () => {6 const browser = await chromium.launch();7 const context = await browser.newContext();8 const page = await context.newPage();9 await page.addBinding('foo', () => 'bar');10 const result = await page.evaluate(() => {11 return foo;12 });13 console.log(result);14 await browser.close();15})();16const { addBinding } = require('playwright');17const { Page } = require('playwright/lib/server/page');18Page.prototype.addBinding = addBinding;19const { chromium } = require('playwright');20(async () => {21 const browser = await chromium.launch();22 const context = await browser.newContext();23 const page = await context.newPage();24 await page.addBinding('foo', () => 'bar');25 const result = await page.evaluate(() => {26 return foo;27 });28 console.log(result);29 await browser.close();30})();31const { addBinding } = require('playwright');32const { Page } = require('playwright/lib/server/page');33Page.prototype.addBinding = addBinding;34const { chromium } = require('playwright');35(async () => {36 const browser = await chromium.launch();37 const context = await browser.newContext();38 const page = await context.newPage();39 await page.addBinding('foo', () => 'bar');40 const result = await page.evaluate(() => {41 return foo;42 });43 console.log(result);44 await browser.close();45})();46const { addBinding } = require('playwright');47const { Page } = require('playwright/lib/server/page');48Page.prototype.addBinding = addBinding;49const { chromium } = require('playwright');50(async () => {51 const browser = await chromium.launch();52 const context = await browser.newContext();
Using AI Code Generation
1const { addPageBinding } = require('playwright/lib/server/page');2const { Page } = require('playwright/lib/server/chromium/crPage');3const { Frame } = require('playwright/lib/server/chromium/crFrame');4const { ElementHandle } = require('playwright/lib/server/chromium/crElementHandle');5addPageBinding(Page, 'playwrightAddBinding', bindingSource => {6 const binding = new Function('source', bindingSource);7 return binding.call(null, bindingSource);8});9addPageBinding(Frame, 'playwrightAddBinding', bindingSource => {10 const binding = new Function('source', bindingSource);11 return binding.call(null, bindingSource);12});13addPageBinding(ElementHandle, 'playwrightAddBinding', bindingSource => {14 const binding = new Function('source', bindingSource);15 return binding.call(null, bindingSource);16});17const { addBinding } = require('playwright/lib/server/page');18const { Page } = require('playwright/lib/server/chromium/crPage');19const { Frame } = require('playwright/lib/server/chromium/crFrame');20const { ElementHandle } = require('playwright/lib/server/chromium/crElementHandle');21addBinding(Page, 'playwrightAddBinding', bindingSource => {22 const binding = new Function('source', bindingSource);23 return binding.call(null, bindingSource);24});25addBinding(Frame, 'playwrightAddBinding', bindingSource => {26 const binding = new Function('source', bindingSource);27 return binding.call(null, bindingSource);28});29addBinding(ElementHandle, 'playwrightAddBinding', bindingSource => {30 const binding = new Function('source', bindingSource);31 return binding.call(null, bindingSource);32});33const { addInitScript } = require('playwright/lib/server/page');34const { Page } = require('playwright/lib/server/chromium/crPage');35const { Frame } = require('playwright/lib/server/chromium/crFrame');36const { ElementHandle } = require('
Jest + Playwright - Test callbacks of event-based DOM library
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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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