15 lines
863 B
JavaScript
15 lines
863 B
JavaScript
import { chromium } from 'playwright';
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/* Scrolls from an anchor downwards in steps, capturing the viewport each time. */
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const [,, url, prefix, anchor, width = '1440', height = '900', step = '450', count = '10'] = process.argv;
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const browser = await chromium.launch();
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const page = await browser.newPage({ viewport: { width: Number(width), height: Number(height) } });
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await page.goto(url, { waitUntil: 'networkidle' });
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const start = await page.evaluate((sel) => document.querySelector(sel).getBoundingClientRect().top + window.scrollY, anchor);
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for (let i = 0; i < Number(count); i++) {
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await page.evaluate((y) => window.scrollTo(0, y), start + i * Number(step));
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await page.waitForTimeout(i === 0 ? 3000 : 1800);
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await page.screenshot({ path: `${prefix}-${String(i).padStart(2, '0')}.png` });
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}
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await browser.close();
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console.log('stack shots', count);
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