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13f8fe6e16
This commit also removes our own custom type for defining the vision deficiencies and uses the protocol's type. Now we generate docs for those we get the docs generated for free for these. This is better than us duplicating values for types in doc comments and having them become outdated. If we use the protocol types directly then we ensure we're up to date and in-sync. Long term the docs will also link to the devtools-protocol viewer.
1.4 KiB
1.4 KiB
Home > puppeteer > Page > emulateVisionDeficiency
Page.emulateVisionDeficiency() method
Simulates the given vision deficiency on the page.
Signature:
emulateVisionDeficiency(type?: Protocol.Emulation.SetEmulatedVisionDeficiencyRequest['type']): Promise<void>;
Parameters
| Parameter | Type | Description |
|---|---|---|
| type | Protocol.Emulation.SetEmulatedVisionDeficiencyRequest['type'] | the type of deficiency to simulate, or 'none' to reset. |
Returns:
Promise<void>
Example
const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto('https://v8.dev/blog/10-years');
await page.emulateVisionDeficiency('achromatopsia');
await page.screenshot({ path: 'achromatopsia.png' });
await page.emulateVisionDeficiency('deuteranopia');
await page.screenshot({ path: 'deuteranopia.png' });
await page.emulateVisionDeficiency('blurredVision');
await page.screenshot({ path: 'blurred-vision.png' });
await browser.close();
})();