mirror of
https://github.com/puppeteer/puppeteer
synced 2024-06-14 14:02:48 +00:00
042d61030c
Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
96 lines
2.1 KiB
Markdown
96 lines
2.1 KiB
Markdown
---
|
|
sidebar_label: Page.emulateMediaFeatures
|
|
---
|
|
|
|
# Page.emulateMediaFeatures() method
|
|
|
|
#### Signature:
|
|
|
|
```typescript
|
|
class Page {
|
|
abstract emulateMediaFeatures(features?: MediaFeature[]): Promise<void>;
|
|
}
|
|
```
|
|
|
|
## Parameters
|
|
|
|
<table><thead><tr><th>
|
|
|
|
Parameter
|
|
|
|
</th><th>
|
|
|
|
Type
|
|
|
|
</th><th>
|
|
|
|
Description
|
|
|
|
</th></tr></thead>
|
|
<tbody><tr><td>
|
|
|
|
features
|
|
|
|
</td><td>
|
|
|
|
[MediaFeature](./puppeteer.mediafeature.md)\[\]
|
|
|
|
</td><td>
|
|
|
|
_(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:
|
|
|
|
</td></tr>
|
|
</tbody></table>
|
|
**Returns:**
|
|
|
|
Promise<void>
|
|
|
|
## Example
|
|
|
|
```ts
|
|
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
|
|
```
|