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🤖 I have created a release *beep* *boop* --- <details><summary>ng-schematics: 0.1.0</summary> ## 0.1.0 (2022-11-23) ### Features * **ng-schematics:** Release @puppeteer/ng-schematics ([#9244](https://github.com/puppeteer/puppeteer/issues/9244)) ([be33929](be33929770)) </details> <details><summary>puppeteer: 19.3.0</summary> ## [19.3.0](https://github.com/puppeteer/puppeteer/compare/puppeteer-v19.2.2...puppeteer-v19.3.0) (2022-11-23) ### Miscellaneous Chores * **puppeteer:** Synchronize puppeteer versions ### Dependencies * The following workspace dependencies were updated * dependencies * puppeteer-core bumped from 19.2.2 to 19.3.0 </details> <details><summary>puppeteer-core: 19.3.0</summary> ## [19.3.0](https://github.com/puppeteer/puppeteer/compare/puppeteer-core-v19.2.2...puppeteer-core-v19.3.0) (2022-11-23) ### Features * **puppeteer-core:** Infer element type from complex selector ([#9253](https://github.com/puppeteer/puppeteer/issues/9253)) ([bef1061](bef1061c06)) * **puppeteer-core:** update Chrome launcher flags ([#9239](https://github.com/puppeteer/puppeteer/issues/9239)) ([ae87bfc](ae87bfc2b4)) ### Bug Fixes * remove boundary conditions for visibility ([#9249](https://github.com/puppeteer/puppeteer/issues/9249)) ([e003513](e003513c0c)) </details> --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please). Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
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| Page.emulateMediaFeatures |
Page.emulateMediaFeatures() method
Signature:
class Page {
emulateMediaFeatures(features?: MediaFeature[]): Promise<void>;
}
Parameters
| Parameter | Type | Description |
|---|---|---|
| features | MediaFeature[] | (Optional) <?Array<Object>> Given an array of media feature objects, emulates CSS media features on the page. Each media feature object must have the following properties: |
Returns:
Promise<void>
Example
await page.emulateMediaFeatures([
{name: 'prefers-color-scheme', value: 'dark'},
]);
await page.evaluate(() => matchMedia('(prefers-color-scheme: dark)').matches);
// → true
await page.evaluate(() => matchMedia('(prefers-color-scheme: light)').matches);
// → false
await page.emulateMediaFeatures([
{name: 'prefers-reduced-motion', value: 'reduce'},
]);
await page.evaluate(
() => matchMedia('(prefers-reduced-motion: reduce)').matches
);
// → true
await page.evaluate(
() => matchMedia('(prefers-reduced-motion: no-preference)').matches
);
// → false
await page.emulateMediaFeatures([
{name: 'prefers-color-scheme', value: 'dark'},
{name: 'prefers-reduced-motion', value: 'reduce'},
]);
await page.evaluate(() => matchMedia('(prefers-color-scheme: dark)').matches);
// → true
await page.evaluate(() => matchMedia('(prefers-color-scheme: light)').matches);
// → false
await page.evaluate(
() => matchMedia('(prefers-reduced-motion: reduce)').matches
);
// → true
await page.evaluate(
() => matchMedia('(prefers-reduced-motion: no-preference)').matches
);
// → false
await page.emulateMediaFeatures([{name: 'color-gamut', value: 'p3'}]);
await page.evaluate(() => matchMedia('(color-gamut: srgb)').matches);
// → true
await page.evaluate(() => matchMedia('(color-gamut: p3)').matches);
// → true
await page.evaluate(() => matchMedia('(color-gamut: rec2020)').matches);
// → false