46 lines
2.1 KiB
JavaScript
46 lines
2.1 KiB
JavaScript
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/**
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* Renders the iOS app's icon and launch image from static/icon.svg.
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*
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* node scripts/generate-ios-assets.js
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*
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* Same reasoning as generate-icons.js: a script, not a test, run when the icon
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* changes, with Chromium as the SVG renderer because it is already here.
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*
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* Two things differ from the web icons, and both are Apple's rules rather than
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* taste. The app icon is square with no transparency — iOS draws the rounded
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* corners itself, and rounded corners already in the image show as a dark ring
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* inside its own mask — so the tile's `rx` is dropped and the result flattened.
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* And the launch image is the rune small on the tile colour, the size
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* Capacitor's template asks for, so the app opens on the colour it is about to
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* draw instead of on white.
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*/
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import { chromium } from '@playwright/test';
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import { readFileSync, writeFileSync } from 'node:fs';
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const ICONS = '../app/ios/App/App/Assets.xcassets';
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const svg = readFileSync('static/icon.svg', 'utf8').replace(/ rx="[^"]*"/, '');
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const tile = /<rect[^>]*fill="(#[0-9a-fA-F]{6})"/.exec(svg)?.[1];
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if (!tile) throw new Error('static/icon.svg has no tile colour to paint the launch image with');
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const browser = await chromium.launch();
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const page = await browser.newPage();
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async function render(file, size, markSize) {
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await page.setViewportSize({ width: size, height: size });
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await page.setContent(
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`<style>html,body{margin:0;padding:0;background:${tile}}` +
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`div{width:${size}px;height:${size}px;display:grid;place-items:center}` +
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`svg{display:block;width:${markSize}px;height:${markSize}px}</style><div>${svg}</div>`
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);
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writeFileSync(file, await page.locator('div').screenshot({ omitBackground: false }));
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console.log(`${file} ${size}×${size}`);
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}
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await render(`${ICONS}/AppIcon.appiconset/AppIcon-512@2x.png`, 1024, 1024);
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// Capacitor's template names three files for the one launch image; all the same.
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for (const name of ['splash-2732x2732.png', 'splash-2732x2732-1.png', 'splash-2732x2732-2.png']) {
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await render(`${ICONS}/Splash.imageset/${name}`, 2732, 640);
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}
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await browser.close();
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