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64 lines
2.2 KiB
Text
64 lines
2.2 KiB
Text
/*
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Copyright 2020 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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import {registerRoute} from 'workbox-routing/registerRoute.js';
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import {StaleWhileRevalidate} from 'workbox-strategies/StaleWhileRevalidate.js';
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import {CacheFirst} from 'workbox-strategies/CacheFirst.js';
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import {CacheableResponsePlugin} from 'workbox-cacheable-response/CacheableResponsePlugin.js';
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import {ExpirationPlugin} from 'workbox-expiration/ExpirationPlugin.js';
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import './_version.js';
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export interface GoogleFontCacheOptions {
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cachePrefix?: string;
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maxAgeSeconds?: number;
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maxEntries?: number;
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}
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/**
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* An implementation of the [Google fonts]{@link https://developers.google.com/web/tools/workbox/guides/common-recipes#google_fonts} caching recipe
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*
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* @memberof workbox-recipes
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*
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* @param {Object} [options]
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* @param {string} [options.cachePrefix] Cache prefix for caching stylesheets and webfonts. Defaults to google-fonts
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* @param {number} [options.maxAgeSeconds] Maximum age, in seconds, that font entries will be cached for. Defaults to 1 year
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* @param {number} [options.maxEntries] Maximum number of fonts that will be cached. Defaults to 30
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*/
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function googleFontsCache(options: GoogleFontCacheOptions = {}): void {
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const sheetCacheName = `${options.cachePrefix || 'google-fonts'}-stylesheets`;
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const fontCacheName = `${options.cachePrefix || 'google-fonts'}-webfonts`;
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const maxAgeSeconds = options.maxAgeSeconds || 60 * 60 * 24 * 365;
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const maxEntries = options.maxEntries || 30;
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// Cache the Google Fonts stylesheets with a stale-while-revalidate strategy.
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registerRoute(
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({url}) => url.origin === 'https://fonts.googleapis.com',
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new StaleWhileRevalidate({
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cacheName: sheetCacheName,
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}),
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);
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// Cache the underlying font files with a cache-first strategy for 1 year.
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registerRoute(
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({url}) => url.origin === 'https://fonts.gstatic.com',
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new CacheFirst({
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cacheName: fontCacheName,
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plugins: [
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new CacheableResponsePlugin({
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statuses: [0, 200],
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}),
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new ExpirationPlugin({
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maxAgeSeconds,
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maxEntries,
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}),
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],
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}),
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);
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}
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export {googleFontsCache};
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