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How to use fromProtocolForcedColors method in Playwright Internal

Best JavaScript code snippet using playwright-internal

TargetRegistry.js

Source:TargetRegistry.js

...413  updateReducedMotionOverride() {414    this._linkedBrowser.browsingContext.prefersReducedMotionOverride = this.reducedMotion || this._browserContext.reducedMotion || 'none';415  }416  setForcedColors(forcedColors) {417    this.forcedColors = fromProtocolForcedColors(forcedColors);418    this.updateForcedColorsOverride();419  }420  updateForcedColorsOverride() {421    this._linkedBrowser.browsingContext.forcedColorsOverride = (this.forcedColors !== 'no-override' ? this.forcedColors : this._browserContext.forcedColors) || 'no-override';422  }423  async setViewportSize(viewportSize) {424    this._viewportSize = viewportSize;425    await this.updateViewportSize();426  }427  close(runBeforeUnload = false) {428    this._gBrowser.removeTab(this._tab, {429      skipPermitUnload: !runBeforeUnload,430    });431  }432  channel() {433    return this._channel;434  }435  id() {436    return this._targetId;437  }438  info() {439    return {440      targetId: this.id(),441      type: 'page',442      browserContextId: this._browserContext.browserContextId,443      openerId: this._openerId,444    };445  }446  _onNavigated(aLocation) {447    this._url = aLocation.spec;448    this._browserContext.grantPermissionsToOrigin(this._url);449  }450  async ensurePermissions() {451    await this._channel.connect('').send('ensurePermissions', {}).catch(e => void e);452  }453  async addScriptToEvaluateOnNewDocument(script) {454    await this._channel.connect('').send('addScriptToEvaluateOnNewDocument', script).catch(e => void e);455  }456  async addBinding(worldName, name, script) {457    await this._channel.connect('').send('addBinding', { worldName, name, script }).catch(e => void e);458  }459  async applyContextSetting(name, value) {460    await this._channel.connect('').send('applyContextSetting', { name, value }).catch(e => void e);461  }462  async hasFailedToOverrideTimezone() {463    return await this._channel.connect('').send('hasFailedToOverrideTimezone').catch(e => true);464  }465  async _startVideoRecording({width, height, dir}) {466    // On Mac the window may not yet be visible when TargetCreated and its467    // NSWindow.windowNumber may be -1, so we wait until the window is known468    // to be initialized and visible.469    await this.windowReady();470    const file = OS.Path.join(dir, helper.generateId() + '.webm');471    if (width < 10 || width > 10000 || height < 10 || height > 10000)472      throw new Error("Invalid size");473    const docShell = this._gBrowser.ownerGlobal.docShell;474    // Exclude address bar and navigation control from the video.475    const rect = this.linkedBrowser().getBoundingClientRect();476    const devicePixelRatio = this._window.devicePixelRatio;477    let sessionId;478    const registry = this._registry;479    const screencastClient = {480      QueryInterface: ChromeUtils.generateQI([Ci.nsIScreencastServiceClient]),481      screencastFrame(data, deviceWidth, deviceHeight) {482      },483      screencastStopped() {484        registry.emit(TargetRegistry.Events.ScreencastStopped, sessionId);485      },486    };487    const viewport = this._viewportSize || this._browserContext.defaultViewportSize || { width: 0, height: 0 };488    sessionId = screencastService.startVideoRecording(screencastClient, docShell, true, file, width, height, 0, viewport.width, viewport.height, devicePixelRatio * rect.top);489    this._videoRecordingInfo = { sessionId, file };490    this.emit(PageTarget.Events.ScreencastStarted);491  }492  _stopVideoRecording() {493    if (!this._videoRecordingInfo)494      throw new Error('No video recording in progress');495    const videoRecordingInfo = this._videoRecordingInfo;496    this._videoRecordingInfo = undefined;497    screencastService.stopVideoRecording(videoRecordingInfo.sessionId);498  }499  videoRecordingInfo() {500    return this._videoRecordingInfo;501  }502  async startScreencast({ width, height, quality }) {503    // On Mac the window may not yet be visible when TargetCreated and its504    // NSWindow.windowNumber may be -1, so we wait until the window is known505    // to be initialized and visible.506    await this.windowReady();507    if (width < 10 || width > 10000 || height < 10 || height > 10000)508      throw new Error("Invalid size");509    const docShell = this._gBrowser.ownerGlobal.docShell;510    // Exclude address bar and navigation control from the video.511    const rect = this.linkedBrowser().getBoundingClientRect();512    const devicePixelRatio = this._window.devicePixelRatio;513    const self = this;514    const screencastClient = {515      QueryInterface: ChromeUtils.generateQI([Ci.nsIScreencastServiceClient]),516      screencastFrame(data, deviceWidth, deviceHeight) {517        if (self._screencastRecordingInfo)518          self.emit(PageTarget.Events.ScreencastFrame, { data, deviceWidth, deviceHeight });519      },520      screencastStopped() {521      },522    };523    const viewport = this._viewportSize || this._browserContext.defaultViewportSize || { width: 0, height: 0 };524    const screencastId = screencastService.startVideoRecording(screencastClient, docShell, false, '', width, height, quality || 90, viewport.width, viewport.height, devicePixelRatio * rect.top);525    this._screencastRecordingInfo = { screencastId };526    return { screencastId };527  }528  screencastFrameAck({ screencastId }) {529    if (!this._screencastRecordingInfo || this._screencastRecordingInfo.screencastId !== screencastId)530      return;531    screencastService.screencastFrameAck(screencastId);532  }533  stopScreencast() {534    if (!this._screencastRecordingInfo)535      throw new Error('No screencast in progress');536    const { screencastId } = this._screencastRecordingInfo;537    this._screencastRecordingInfo = undefined;538    screencastService.stopVideoRecording(screencastId);539  }540  dispose() {541    this._disposed = true;542    if (this._videoRecordingInfo)543      this._stopVideoRecording();544    if (this._screencastRecordingInfo)545      this.stopScreencast();546    this._browserContext.pages.delete(this);547    this._registry._browserToTarget.delete(this._linkedBrowser);548    this._registry._browserBrowsingContextToTarget.delete(this._linkedBrowser.browsingContext);549    try {550      helper.removeListeners(this._eventListeners);551    } catch (e) {552      // In some cases, removing listeners from this._linkedBrowser fails553      // because it is already half-destroyed.554      if (e)555        dump(e.message + '\n' + e.stack + '\n');556    }557    this._registry.emit(TargetRegistry.Events.TargetDestroyed, this);558  }559}560PageTarget.Events = {561  ScreencastStarted: Symbol('PageTarget.ScreencastStarted'),562  ScreencastFrame: Symbol('PageTarget.ScreencastFrame'),563  Crashed: Symbol('PageTarget.Crashed'),564  DialogOpened: Symbol('PageTarget.DialogOpened'),565  DialogClosed: Symbol('PageTarget.DialogClosed'),566};567function fromProtocolColorScheme(colorScheme) {568  if (colorScheme === 'light' || colorScheme === 'dark')569    return colorScheme;570  if (colorScheme === null || colorScheme === 'no-preference')571    return undefined;572  throw new Error('Unknown color scheme: ' + colorScheme);573}574function fromProtocolReducedMotion(reducedMotion) {575  if (reducedMotion === 'reduce' || reducedMotion === 'no-preference')576    return reducedMotion;577  if (reducedMotion === null)578    return undefined;579  throw new Error('Unknown reduced motion: ' + reducedMotion);580}581function fromProtocolForcedColors(forcedColors) {582  if (forcedColors === 'active' || forcedColors === 'none')583    return forcedColors;584  if (forcedColors === null)585    return undefined;586  throw new Error('Unknown forced colors: ' + forcedColors);587}588class BrowserContext {589  constructor(registry, browserContextId, removeOnDetach) {590    this._registry = registry;591    this.browserContextId = browserContextId;592    // Default context has userContextId === 0, but we pass undefined to many APIs just in case.593    this.userContextId = 0;594    if (browserContextId !== undefined) {595      const identity = ContextualIdentityService.create(IDENTITY_NAME + browserContextId);596      this.userContextId = identity.userContextId;597    }598    this._principals = [];599    // Maps origins to the permission lists.600    this._permissions = new Map();601    this._registry._browserContextIdToBrowserContext.set(this.browserContextId, this);602    this._registry._userContextIdToBrowserContext.set(this.userContextId, this);603    this._proxy = null;604    this.removeOnDetach = removeOnDetach;605    this.extraHTTPHeaders = undefined;606    this.httpCredentials = undefined;607    this.requestInterceptionEnabled = undefined;608    this.ignoreHTTPSErrors = undefined;609    this.downloadOptions = undefined;610    this.defaultViewportSize = undefined;611    this.deviceScaleFactor = undefined;612    this.defaultUserAgent = null;613    this.defaultPlatform = null;614    this.javaScriptDisabled = false;615    this.touchOverride = false;616    this.colorScheme = 'none';617    this.forcedColors = 'no-override';618    this.reducedMotion = 'none';619    this.videoRecordingOptions = undefined;620    this.scriptsToEvaluateOnNewDocument = [];621    this.bindings = [];622    this.settings = {};623    this.pages = new Set();624  }625  setColorScheme(colorScheme) {626    this.colorScheme = fromProtocolColorScheme(colorScheme);627    for (const page of this.pages)628      page.updateColorSchemeOverride();629  }630  setReducedMotion(reducedMotion) {631    this.reducedMotion = fromProtocolReducedMotion(reducedMotion);632    for (const page of this.pages)633      page.updateReducedMotionOverride();634  }635  setForcedColors(forcedColors) {636    this.forcedColors = fromProtocolForcedColors(forcedColors);637    for (const page of this.pages)638      page.updateForcedColorsOverride();639  }640  async destroy() {641    if (this.userContextId !== 0) {642      ContextualIdentityService.remove(this.userContextId);643      for (const page of this.pages)644        page.close();645      if (this.pages.size) {646        await new Promise(f => {647          const listener = helper.on(this._registry, TargetRegistry.Events.TargetDestroyed, () => {648            if (!this.pages.size) {649              helper.removeListeners([listener]);650              f();...

Using AI Code Generation

1const { webkit } = require('playwright');2(async () => {3  const browser = await webkit.launch();4  const context = await browser.newContext({ fromProtocolForcedColors: true });5  const page = await context.newPage();6  await page.screenshot({ path: 'screenshot.png' });7  await browser.close();8})();9const { webkit } = require('playwright');10(async () => {11  const browser = await webkit.launch();12  const context = await browser.newContext({ fromProtocolForcedColors: false });13  const page = await context.newPage();14  await page.screenshot({ path: 'screenshot.png' });15  await browser.close();16})();17const { webkit } = require('playwright');18(async () => {19  const browser = await webkit.launch();20  const context = await browser.newContext({ fromProtocolForcedColors: undefined });21  const page = await context.newPage();22  await page.screenshot({ path: 'screenshot.png' });23  await browser.close();24})();25const { webkit } = require('playwright');26(async () => {27  const browser = await webkit.launch();28  const context = await browser.newContext({ fromProtocolForcedColors: null });29  const page = await context.newPage();30  await page.screenshot({ path: 'screenshot.png' });31  await browser.close();32})();33const { webkit } = require('playwright');34(async () => {35  const browser = await webkit.launch();36  const context = await browser.newContext({ fromProtocolForcedColors: 1 });37  const page = await context.newPage();38  await page.screenshot({ path: 'screenshot.png' });39  await browser.close();40})();41const { webkit } = require('playwright');

Using AI Code Generation

1const {chromium} = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext({5  });6  const page = await context.newPage();7  await browser.close(); API8})();const {chromium} = require('playwright');9conync () => {10(async () => {  const browser = await chromium.launch();11  const browser = await chromium.launch );12  const context = await browser.newContext({13  });14  const page = await context.newPage();15  await browser.slose();16})();17const {chromium} = require('playwright');18(async  context = await browser.newContext({19    fromProtocolForcedColors: true();20  });21  const page = await context.newPage();22  await browser.clos();23})();24const {chromium} = require('paywright');25(async () => {26  const browsr = await chromium.launch();27  cont context = await brower.newContext({28  });29  const page = await context.newPage();30  await browser.close();31})();32const {chromium} = require('playwright');33(async () => {34  const browser = await chromium.launch();35  const context = await browser.newContext({36  });37  const page = await context.newPage();38  await browser.close();39})();40const {chromium} = require('playwright');41(async () => {

Using AI Code Generation

1const {chromium} = require('playwright');2(async () => {3  const browser = await chromium.launch({4  const page = await context.newPage();5  await browser.close();6})();7const {chromium} = require('playwright');8(async () => {9  const browser = await chromium.launch();10  const context = await browser.newContext({11  });12  const page = await context.newPage();

Using AI Code Generation

1const { chromium } = require('playwright');2const { fromProtocolForcedColors } = require('playwright/lib/server/browserContext');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  const colorScheme = await fromProtocolForcedColors(context);8  console.log(colorScheme);9  await browser.close();10})();11{ forcedColors: 'active', forcedColorAdjust: 'none' }12  await browser.close();13})();14const {chromium} = require('playwright');15(async () => {16  const browser = await chromium.launch();17  const context = await browser.newContext({18  });19  const page = await context.newPage();20  await browser.close();21})();22const {chromium} = require('playwright');23(async () => {24  const browser = await chromium.launch();25  const context = await browser.newContext({26  });27  const page = await context.newPage();28  await browser.close();29})();30const {chromium} = require('playwright');31(async () => {32  const browser = await chromium.launch();33  const context = await browser.newContext({34  });35  const page = await context.newPage();36  await browser.close();37})();38const {chromium} = require('playwright');39(async () => {

Using AI Code Generation

1const {chromium} = require('playwright');2(async () => {3  const browser = await chromium.launch({4  });5  const context = await browser.newContext();6  const page = await context.newPage();7  await page.screenshot({ path: 'screenshot.png' });8  await browser.close();9})();

Using AI Code Generation

1const { chromium } = require('playwright');2const { fromProtocolForcedColors } = require('playwright/lib/server/browserContext');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  const colorScheme = await fromProtocolForcedColors(context);8  console.log(colorScheme);9  await browser.close();10})();11{ forcedColors: 'active', forcedColorAdjust: 'none' }

Using AI Code Generation

1const { webkit } = require('playwright-webkit');2(async () => {3  const browser = await webkit.launch({ headless: false });4  const context = await browser.newContext({ fromProtocolForcedColors: true });5  const page = await context.newPage();6  await page.screenshot({ path: 'screenshot.png' });7  await browser.close();8})();9{10  "scripts": {11  },12  "dependencies": {13  }14}

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch({ headless: false });4  const context = await browser.newContext({ acceptDownloads: true });5  await context.addInitScript(() => {6    window.__playwright__ = {7      fromProtocolForcedColors: (value) => {8        window.__playwright__._forcedColors = value;9      },10    };11  });12  const page = await context.newPage();13  await page.evaluate(() => {14    window.__playwright__?.fromProtocolForcedColors(true);15  });16  await page.waitForTimeout(1000);17  await page.screenshot({ path: 'screenshot.png' });18  await browser.close();19})();

Using AI Code Generation

1const { Playwright } = require('playwright');2const { fromProtocolForcedColors } = Playwright.fromProtocolForcedColors;3const protocolForcedColors = fromProtocolForcedColors({4  forcedColors: {5  },6});7console.log(protocolForcedColors);8const { Playwright } = require('playwright');9const { fromProtocolCookies } = Playwright.fromProtocolCookies;10const protocolCookies = fromProtocolCookies([11  {

Using AI Code Generation

1const internal = require('playwright/lib/server/frames');2const { Frame } = require('playwright/lib/server/frames');3const { assert } = require('console');4const { fromProtocolForcedColors } = internal;5const frame = new Frame();6const fromProtocolForcedColorsResult = fromProtocolForcedColors(frame);7assert(fromProtocolForcedColorsResult === 'none' || fromProtoolForcedColorsResult === 'active' || fromProtocolForcedColorsResult === 'none');8const internal = require('playwright/lib/server/frames');9const { Frame } = require('playwrigt/lib/srver/fras');10const { assert } = require('console');const forcedColors = parseForcedColors('activeborder #ff0000');11const { fromcrotocolForcedColors } = internal;12const frome = new Fnsme();13const fromProtocolForcedColorsResult = frotProtocolForc dColors(frame);14assert(fromProtocolForcedColorsResult === 'none' || fromProtocolForcedColorsResult === 'active' || fromProtocolForcedColorsResult === 'none');15const internal = require('playwright/lib/server/frames');const forcedBackgroundColor = parseColor('#000000');16const { Frame } = require('lywright/lib/server/fes');17const { assert } = require('conole');18const { fromProtocolForcedColors } = internal;19const frame = new Frame();20const fromProtocolForcedColorsResult = fromProtocolForcedColors(frame);21assert(fromProtocolForcedColorsResult === 'none' || fromProtocolForcedColorsResult === 'active' || fromProtocolForcedColorsResult === 'none');22const internal = require('playwright/lib/server/frames');23const { Frame } = require('playwright/lib/server/frames');24const { assert } = require('console');25const { fromProtocolForcedColors } = internal;26const frame = new Frame();27const fromProtocolForcedColorsResult = fromProtocolForcedColors(frame);28assert(fromProtocolForcedColorsResult === 'none' || fromProtocolForcedColorsResult === 'active' || fromProtocolForcedColorsResult === 'none');29const internal = require('playwright/lib/server/frames');30const {

Using AI Code Generation

1const { fromProtocolForcedColors } = require('@playwright/test/lib/server/protocolForcedColors');2const forcedColors = fromProtocolForcedColors('active', 'forced-colors');3const { fromProtocolEmulateMedia } = require('@playwright/test/lib/server/protocolEmulateMedia');4const emulateMedia = fromProtocolEmulateMedia('screen', 'print', 'prefers-color-scheme', 'forced-colors');5const { fromProtocolViewport } = require('@playwright/test/lib/server/protocolViewport');6const viewport = fromProtocolViewport(1200, 800, 1, false);7const { fromProtocolEmulateMedia } = require('@playwright/test/lib/server/protocolEmulateMedia');8const emulateMedia = fromProtocolEmulateMedia('screen', 'print', 'prefers-color-scheme', 'forced-colors');9const { fromProtocolViewport } = require('@playwright/test/lib/server/protocolViewport');10const viewport = fromProtocolViewport(1200, 800, 1, false);11const { fromProtocolEmulateMedia } = require('@playwright/test/lib/server/protocolEmulateMedia');12const emulateMedia = fromProtocolEmulateMedia('screen', 'print', 'prefers-color-scheme', 'forced-colors');13const { fromProtocolViewport } = require('@playwright/test/lib/server/protocolViewport');14const viewport = fromProtocolViewport(1200, 800, 1, false);15const { fromProtocolEmulateMedia } = require('@playwright/test/lib/server/protocolEmulateMedia');16const emulateMedia = fromProtocolEmulateMedia('screen', 'print', 'prefers-color-scheme', 'forced-colors');17const { fromProtocolViewport } = require('@playwright/test/lib/server/protocolViewport');18const viewport = fromProtocolViewport(1200, 800, 1,

Using AI Code Generation

1const { fromProtocolForcedColors } = require('@playwright/test/lib/server/protocolForcedColors');2const forcedColors = fromProtocolForcedColors('active', 'forced-colors');3const { fromProtocolEmulateMedia } = require('@playwright/test/lib/server/protocolEmulateMedia');4const emulateMedia = fromProtocolEmulateMedia('screen', 'print', 'prefers-color-scheme', 'forced-colors');5const { fromProtocolViewport } = require('@playwright/test/lib/server/protocolViewport');6const viewport = fromProtocolViewport(1200, 800, 1, false);7const { fromProtocolEmulateMedia } = require('@playwright/test/lib/server/protocolEmulateMedia');8const emulateMedia = fromProtocolEmulateMedia('screen', 'print', 'prefers-color-scheme', 'forced-colors');9const { fromProtocolViewport } = require('@playwright/test/lib/server/protocolViewport');10const viewport = fromProtocolViewport(1200, 800, 1, false);11const { fromProtocolEmulateMedia } = require('@playwright/test/lib/server/protocolEmulateMedia');12const emulateMedia = fromProtocolEmulateMedia('screen', 'print', 'prefers-color-scheme', 'forced-colors');13const { fromProtocolViewport } = require('@playwright/test/lib/server/protocolViewport');14const viewport = fromProtocolViewport(1200, 800, 1, false);15const { fromProtocolEmulateMedia } = require('@playwright/test/lib/server/protocolEmulateMedia');16const emulateMedia = fromProtocolEmulateMedia('screen', 'print', 'prefers-color-scheme', 'forced-colors');17const { fromProtocolViewport } = require('@playwright/test/lib/server/protocolViewport');18const viewport = fromProtocolViewport(1200, 800, 1,19const forcedColorsResult = fromProtocolForcedColors({20});21console.log(forcedColorsResult);22fromProtocolForcedColors ( params : Protocol . ForcedColors ) : ForcedColors23toProtocolForcedColors ( params : ForcedColors ) : Protocol . ForcedColors24fromProtocolColorScheme ( params : Protocol . ColorScheme ) : ColorScheme25toProtocolColorScheme ( params : ColorScheme ) : Protocol . ColorScheme

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