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How to use createFiberFromOffscreen method in Playwright Internal
Best JavaScript code snippet using playwright-internal
ReactFiber.new.js
Source:ReactFiber.new.js 
...434 return createFiberFromSuspense(pendingProps, mode, lanes, key);435 case REACT_SUSPENSE_LIST_TYPE:436 return createFiberFromSuspenseList(pendingProps, mode, lanes, key);437 case REACT_OFFSCREEN_TYPE:438 return createFiberFromOffscreen(pendingProps, mode, lanes, key);439 case REACT_LEGACY_HIDDEN_TYPE:440 return createFiberFromLegacyHidden(pendingProps, mode, lanes, key);441 case REACT_SCOPE_TYPE:442 if (enableScopeAPI) {443 return createFiberFromScope(type, pendingProps, mode, lanes, key);444 }445 // eslint-disable-next-line no-fallthrough446 default: {447 if (typeof type === 'object' && type !== null) {448 switch (type.$$typeof) {449 case REACT_PROVIDER_TYPE:450 fiberTag = ContextProvider;451 break getTag;452 case REACT_CONTEXT_TYPE:453 // This is a consumer454 fiberTag = ContextConsumer;455 break getTag;456 case REACT_FORWARD_REF_TYPE:457 fiberTag = ForwardRef;458 if (__DEV__) {459 resolvedType = resolveForwardRefForHotReloading(resolvedType);460 }461 break getTag;462 case REACT_MEMO_TYPE:463 fiberTag = MemoComponent;464 break getTag;465 case REACT_LAZY_TYPE:466 fiberTag = LazyComponent;467 resolvedType = null;468 break getTag;469 case REACT_BLOCK_TYPE:470 fiberTag = Block;471 break getTag;472 case REACT_FUNDAMENTAL_TYPE:473 if (enableFundamentalAPI) {474 return createFiberFromFundamental(475 type,476 pendingProps,477 mode,478 lanes,479 key,480 );481 }482 break;483 }484 }485 let info = '';486 if (__DEV__) {487 if (488 type === undefined ||489 (typeof type === 'object' &&490 type !== null &&491 Object.keys(type).length === 0)492 ) {493 info +=494 ' You likely forgot to export your component from the file ' +495 "it's defined in, or you might have mixed up default and " +496 'named imports.';497 }498 const ownerName = owner ? getComponentName(owner.type) : null;499 if (ownerName) {500 info += '\n\nCheck the render method of `' + ownerName + '`.';501 }502 }503 invariant(504 false,505 'Element type is invalid: expected a string (for built-in ' +506 'components) or a class/function (for composite components) ' +507 'but got: %s.%s',508 type == null ? type : typeof type,509 info,510 );511 }512 }513 }514 const fiber = createFiber(fiberTag, pendingProps, key, mode);515 fiber.elementType = type;516 fiber.type = resolvedType;517 fiber.lanes = lanes;518 if (__DEV__) {519 fiber._debugOwner = owner;520 }521 return fiber;522}523export function createFiberFromElement(524 element ,525 mode ,526 lanes ,527) {528 let owner = null;529 if (__DEV__) {530 owner = element._owner;531 }532 const type = element.type;533 const key = element.key;534 const pendingProps = element.props;535 const fiber = createFiberFromTypeAndProps(536 type,537 key,538 pendingProps,539 owner,540 mode,541 lanes,542 );543 if (__DEV__) {544 fiber._debugSource = element._source;545 fiber._debugOwner = element._owner;546 }547 return fiber;548}549export function createFiberFromFragment(550 elements ,551 mode ,552 lanes ,553 key ,554) {555 const fiber = createFiber(Fragment, elements, key, mode);556 fiber.lanes = lanes;557 return fiber;558}559export function createFiberFromFundamental(560 fundamentalComponent ,561 pendingProps ,562 mode ,563 lanes ,564 key ,565) {566 const fiber = createFiber(FundamentalComponent, pendingProps, key, mode);567 fiber.elementType = fundamentalComponent;568 fiber.type = fundamentalComponent;569 fiber.lanes = lanes;570 return fiber;571}572function createFiberFromScope(573 scope ,574 pendingProps ,575 mode ,576 lanes ,577 key ,578) {579 const fiber = createFiber(ScopeComponent, pendingProps, key, mode);580 fiber.type = scope;581 fiber.elementType = scope;582 fiber.lanes = lanes;583 return fiber;584}585function createFiberFromProfiler(586 pendingProps ,587 mode ,588 lanes ,589 key ,590) {591 if (__DEV__) {592 if (typeof pendingProps.id !== 'string') {593 console.error('Profiler must specify an "id" as a prop');594 }595 }596 const fiber = createFiber(Profiler, pendingProps, key, mode | ProfileMode);597 // TODO: The Profiler fiber shouldn't have a type. It has a tag.598 fiber.elementType = REACT_PROFILER_TYPE;599 fiber.type = REACT_PROFILER_TYPE;600 fiber.lanes = lanes;601 if (enableProfilerTimer) {602 fiber.stateNode = {603 effectDuration: 0,604 passiveEffectDuration: 0,605 };606 }607 return fiber;608}609export function createFiberFromSuspense(610 pendingProps ,611 mode ,612 lanes ,613 key ,614) {615 const fiber = createFiber(SuspenseComponent, pendingProps, key, mode);616 // TODO: The SuspenseComponent fiber shouldn't have a type. It has a tag.617 // This needs to be fixed in getComponentName so that it relies on the tag618 // instead.619 fiber.type = REACT_SUSPENSE_TYPE;620 fiber.elementType = REACT_SUSPENSE_TYPE;621 fiber.lanes = lanes;622 return fiber;623}624export function createFiberFromSuspenseList(625 pendingProps ,626 mode ,627 lanes ,628 key ,629) {630 const fiber = createFiber(SuspenseListComponent, pendingProps, key, mode);631 if (__DEV__) {632 // TODO: The SuspenseListComponent fiber shouldn't have a type. It has a tag.633 // This needs to be fixed in getComponentName so that it relies on the tag634 // instead.635 fiber.type = REACT_SUSPENSE_LIST_TYPE;636 }637 fiber.elementType = REACT_SUSPENSE_LIST_TYPE;638 fiber.lanes = lanes;639 return fiber;640}641export function createFiberFromOffscreen(642 pendingProps ,643 mode ,644 lanes ,645 key ,646) {647 const fiber = createFiber(OffscreenComponent, pendingProps, key, mode);648 // TODO: The OffscreenComponent fiber shouldn't have a type. It has a tag.649 // This needs to be fixed in getComponentName so that it relies on the tag650 // instead.651 if (__DEV__) {652 fiber.type = REACT_OFFSCREEN_TYPE;653 }654 fiber.elementType = REACT_OFFSCREEN_TYPE;655 fiber.lanes = lanes;...
ReactFiber.old.js
Source:ReactFiber.old.js
...307 return createFiberFromSuspense(pendingProps, mode, lanes, key);308 case REACT_SUSPENSE_LIST_TYPE:309 return createFiberFromSuspenseList(pendingProps, mode, lanes, key);310 case REACT_OFFSCREEN_TYPE:311 return createFiberFromOffscreen(pendingProps, mode, lanes, key);312 case REACT_LEGACY_HIDDEN_TYPE:313 return createFiberFromLegacyHidden(pendingProps, mode, lanes, key);314 case REACT_SCOPE_TYPE:315 // eslint-disable-next-line no-fallthrough316 default:317 {318 if (typeof type === 'object' && type !== null) {319 switch (type.$$typeof) {320 case REACT_PROVIDER_TYPE:321 fiberTag = ContextProvider;322 break getTag;323 case REACT_CONTEXT_TYPE:324 // This is a consumer325 fiberTag = ContextConsumer;326 break getTag;327 case REACT_FORWARD_REF_TYPE:328 fiberTag = ForwardRef;329 {330 resolvedType = resolveForwardRefForHotReloading(resolvedType);331 }332 break getTag;333 case REACT_MEMO_TYPE:334 fiberTag = MemoComponent;335 break getTag;336 case REACT_LAZY_TYPE:337 fiberTag = LazyComponent;338 resolvedType = null;339 break getTag;340 case REACT_BLOCK_TYPE:341 fiberTag = Block;342 break getTag;343 }344 }345 var info = '';346 {347 if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {348 info += ' You likely forgot to export your component from the file ' + "it's defined in, or you might have mixed up default and " + 'named imports.';349 }350 var ownerName = owner ? getComponentName(owner.type) : null;351 if (ownerName) {352 info += '\n\nCheck the render method of `' + ownerName + '`.';353 }354 }355 {356 {357 throw Error( "Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: " + (type == null ? type : typeof type) + "." + info );358 }359 }360 }361 }362 }363 var fiber = createFiber(fiberTag, pendingProps, key, mode);364 fiber.elementType = type;365 fiber.type = resolvedType;366 fiber.lanes = lanes;367 {368 fiber._debugOwner = owner;369 }370 return fiber;371 }372 function createFiberFromElement(element, mode, lanes) {373 var owner = null;374 {375 owner = element._owner;376 }377 var type = element.type;378 var key = element.key;379 var pendingProps = element.props;380 var fiber = createFiberFromTypeAndProps(type, key, pendingProps, owner, mode, lanes);381 {382 fiber._debugSource = element._source;383 fiber._debugOwner = element._owner;384 }385 return fiber;386 }387 function createFiberFromFragment(elements, mode, lanes, key) {388 var fiber = createFiber(Fragment, elements, key, mode);389 fiber.lanes = lanes;390 return fiber;391 }392 function createFiberFromProfiler(pendingProps, mode, lanes, key) {393 {394 if (typeof pendingProps.id !== 'string') {395 error('Profiler must specify an "id" as a prop');396 }397 }398 var fiber = createFiber(Profiler, pendingProps, key, mode | ProfileMode); // TODO: The Profiler fiber shouldn't have a type. It has a tag.399 fiber.elementType = REACT_PROFILER_TYPE;400 fiber.type = REACT_PROFILER_TYPE;401 fiber.lanes = lanes;402 {403 fiber.stateNode = {404 effectDuration: 0,405 passiveEffectDuration: 0406 };407 }408 return fiber;409 }410 function createFiberFromSuspense(pendingProps, mode, lanes, key) {411 var fiber = createFiber(SuspenseComponent, pendingProps, key, mode); // TODO: The SuspenseComponent fiber shouldn't have a type. It has a tag.412 // This needs to be fixed in getComponentName so that it relies on the tag413 // instead.414 fiber.type = REACT_SUSPENSE_TYPE;415 fiber.elementType = REACT_SUSPENSE_TYPE;416 fiber.lanes = lanes;417 return fiber;418 }419 function createFiberFromSuspenseList(pendingProps, mode, lanes, key) {420 var fiber = createFiber(SuspenseListComponent, pendingProps, key, mode);421 {422 // TODO: The SuspenseListComponent fiber shouldn't have a type. It has a tag.423 // This needs to be fixed in getComponentName so that it relies on the tag424 // instead.425 fiber.type = REACT_SUSPENSE_LIST_TYPE;426 }427 fiber.elementType = REACT_SUSPENSE_LIST_TYPE;428 fiber.lanes = lanes;429 return fiber;430 }431 function createFiberFromOffscreen(pendingProps, mode, lanes, key) {432 var fiber = createFiber(OffscreenComponent, pendingProps, key, mode); // TODO: The OffscreenComponent fiber shouldn't have a type. It has a tag.433 // This needs to be fixed in getComponentName so that it relies on the tag434 // instead.435 {436 fiber.type = REACT_OFFSCREEN_TYPE;437 }438 fiber.elementType = REACT_OFFSCREEN_TYPE;439 fiber.lanes = lanes;440 return fiber;441 }442 function createFiberFromLegacyHidden(pendingProps, mode, lanes, key) {443 var fiber = createFiber(LegacyHiddenComponent, pendingProps, key, mode); // TODO: The LegacyHidden fiber shouldn't have a type. It has a tag.444 // This needs to be fixed in getComponentName so that it relies on the tag445 // instead....
ReactFiber.js
Source:ReactFiber.js
...152 return createFiberFromSuspense(pendingProps, mode, lanes, key);153 case REACT_SUSPENSE_LIST_TYPE:154 return createFiberFromSuspenseList(pendingProps, mode, lanes, key);155 case REACT_OFFSCREEN_TYPE:156 return createFiberFromOffscreen(pendingProps, mode, lanes, key);157 case REACT_LEGACY_HIDDEN_TYPE:158 return createFiberFromLegacyHidden(pendingProps, mode, lanes, key);159 case REACT_SCOPE_TYPE:160 if (enableScopeAPI) {161 return createFiberFromScope(type, pendingProps, mode, lanes, key);162 }163 // eslint-disable-next-line no-fallthrough164 default: {165 if (typeof type === "object" && type !== null) {166 switch (type.$$typeof) {167 case REACT_PROVIDER_TYPE:168 fiberTag = ContextProvider;169 break getTag;170 case REACT_CONTEXT_TYPE:...
flat1.js
Source:flat1.js
...113function createFiberFromScope(/* ... */) {/* ... */}114function createFiberFromProfiler(/* ... */): Fiber {/* ... */}115export function createFiberFromSuspense(/* ... */) {/* ... */}116export function createFiberFromSuspenseList(/* ... */) {/* ... */}117export function createFiberFromOffscreen(/* ... */) {/* ... */}118export function createFiberFromLegacyHidden(/* ... */) {/* ... */}119export function createFiberFromText(/* ... */): Fiber {/* ... */}120export function createFiberFromHostInstanceForDeletion(): Fiber {/* ... */}121export function createFiberFromDehydratedFragment(/* ... */): Fiber {/* ... */}122export function createFiberFromPortal(/* ... */): Fiber {/* ... */}123// Used for stashing WIP properties to replay failed work in DEV.124export function assignFiberPropertiesInDEV(/* ... */): Fiber {/* ... */}...
Using AI Code Generation
1const { createFiberFromOffscreen } = require('playwright/lib/server/fiber');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 const offscreen = await page.evaluateHandle(() => {7 const canvas = document.createElement('canvas');8 document.body.appendChild(canvas);9 const ctx = canvas.getContext('2d');10 ctx.fillStyle = 'red';11 ctx.fillRect(0, 0, 100, 100);12 return canvas;13 });14 const fiber = await createFiberFromOffscreen(offscreen);15 await fiber.dispose();16 await browser.close();17})();
Using AI Code Generation
1const { createFiberFromOffscreen } = require('playwright/lib/server/fiber');2const { Playwright } = require('playwright');3const playwright = new Playwright();4const browser = await playwright.chromium.launch();5const context = await browser.newContext();6const page = await context.newPage();7const offscreenCanvas = await page.evaluateHandle(() => {8 const canvas = document.createElement('canvas');9 canvas.width = 100;10 canvas.height = 100;11 const ctx = canvas.getContext('2d');12 ctx.fillStyle = 'red';13 ctx.fillRect(0, 0, 100, 100);14 return canvas;15});16const fiber = createFiberFromOffscreen(offscreenCanvas);17const { createFiberFromOffscreen } = require('playwright/lib/server/fiber');18const { Playwright } = require('playwright');19const playwright = new Playwright();20const browser = await playwright.chromium.launch();21const context = await browser.newContext();22const page = await context.newPage();23const offscreenCanvas = await page.evaluateHandle(() => {24 const canvas = document.createElement('canvas');25 canvas.width = 100;26 canvas.height = 100;27 const ctx = canvas.getContext('2d');28 ctx.fillStyle = 'red';29 ctx.fillRect(0, 0, 100, 100);30 return canvas;31});32const fiber = createFiberFromOffscreen(offscreenCanvas);33const { createFiberFromOffscreen } = require('playwright/lib/server/fiber');34const { Playwright } = require('playwright');35const playwright = new Playwright();36const browser = await playwright.chromium.launch();37const context = await browser.newContext();38const page = await context.newPage();39const offscreenCanvas = await page.evaluateHandle(() => {40 const canvas = document.createElement('canvas');41 canvas.width = 100;42 canvas.height = 100;43 const ctx = canvas.getContext('2d');44 ctx.fillStyle = 'red';45 ctx.fillRect(0, 0, 100, 100);46 return canvas;47});48const fiber = createFiberFromOffscreen(offscreenCanvas);
Using AI Code Generation
1const { chromium } = require('playwright');2const { createFiberFromOffscreen } = require('playwright/lib/server/fiber.js');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const elementHandle = await page.$('text=Get started');8 const offscreenCanvas = await elementHandle.evaluate(element => {9 const canvas = document.createElement('canvas');10 canvas.width = element.offsetWidth;11 canvas.height = element.offsetHeight;12 const context = canvas.getContext('2d');13 context.drawImage(element, 0, 0);14 return canvas;15 });16 const fiber = createFiberFromOffscreen(offscreenCanvas);17 await browser.close();18})();19Fiber {20 _page: Page {21 _browser: Browser {22 _connection: Connection {
Using AI Code Generation
1const { createFiberFromOffscreen } = require('playwright/lib/server/fiber');2const { createCanvas } = require('canvas');3const canvas = createCanvas(200, 200);4const context = canvas.getContext('2d');5context.fillRect(0, 0, 200, 200);6const fiber = createFiberFromOffscreen(canvas);7console.log(fiber);
Using AI Code Generation
1const { createFiberFromOffscreen } = require('playwright/lib/server/fiber');2const { createTestServer } = require('playwright/lib/utils/testserver');3const test = async () => {4 const { server, url } = await createTestServer();5 server.setRoute('/playground.html', async (req, res) => {6 res.end(`<html><body><canvas id="canvas"></canvas></body></html>`);7 });8 const fiber = createFiberFromOffscreen();9 const page = await fiber.page();10 await page.goto(url + '/playground.html');11 const canvas = await page.$('#canvas');12 const context = await canvas.getContext('2d');13 await context.fillRect(0, 0, 50, 50);14 const screenshot = await page.screenshot({ fullPage: true });15 await fiber.dispose();16 await server.stop();17 return screenshot;18};19test().then(console.log);
Using AI Code Generation
1const { createFiberFromOffscreen } = require('playwright/lib/server/fiber');2const { createServer } = require('http');3const { chromium } = require('playwright');4const server = createServer(async (req, res) => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 const offscreenCanvas = await page.evaluateHandle(() => {9 const canvas = document.createElement('canvas');10 canvas.width = 400;11 canvas.height = 400;12 return canvas;13 });14 const fiber = createFiberFromOffscreen(offscreenCanvas);15 const result = await fiber.evaluate(async (offscreen) => {16 const ctx = offscreen.getContext('2d');17 ctx.fillStyle = 'red';18 ctx.fillRect(0, 0, 100, 100);19 return {20 data: offscreen.transferToImageBitmap().close(),21 };22 });23 res.writeHeader(200, { 'Content-Type': 'application/json' });24 res.end(JSON.stringify(result));25});26server.listen(8080);
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