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[Glitch] Improve Babel configuration and automatically load polyfills 

Port 0e3401bc1c to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>
main
Renaud Chaput 2023-10-31 11:55:13 +01:00 committed by Claire
parent ddf3ad9541
commit e22c3cd768
3 changed files with 3 additions and 55 deletions
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30
app/javascript/flavours/glitch/polyfills/base_polyfills.ts
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@ -1,30 +0,0 @@
import 'core-js/features/object/assign';
import 'core-js/features/object/values';
import 'core-js/features/symbol';
import 'core-js/features/promise/finally';
import { decode as decodeBase64 } from '../utils/base64';
if (!Object.hasOwn(HTMLCanvasElement.prototype, 'toBlob')) {
const BASE64_MARKER = ';base64,';
Object.defineProperty(HTMLCanvasElement.prototype, 'toBlob', {
value: function (
this: HTMLCanvasElement,
callback: BlobCallback,
type = 'image/png',
quality: unknown,
) {
const dataURL: string = this.toDataURL(type, quality);
let data;
if (dataURL.includes(BASE64_MARKER)) {
const [, base64] = dataURL.split(BASE64_MARKER);
data = decodeBase64(base64);
} else {
[, data] = dataURL.split(',');
}
callback(new Blob([data], { type }));
},
});
}

1
app/javascript/flavours/glitch/polyfills/extra_polyfills.ts
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@ -1,2 +1 @@
import 'abortcontroller-polyfill/dist/abortcontroller-polyfill-only';
import 'requestidlecallback';

27
app/javascript/flavours/glitch/polyfills/index.ts
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@ -4,39 +4,18 @@
import { loadIntlPolyfills } from './intl';
function importBasePolyfills() {
return import(/* webpackChunkName: "base_polyfills" */ './base_polyfills');
}
function importExtraPolyfills() {
return import(/* webpackChunkName: "extra_polyfills" */ './extra_polyfills');
}
export function loadPolyfills() {
const needsBasePolyfills = !(
'toBlob' in HTMLCanvasElement.prototype &&
'assign' in Object &&
'values' in Object &&
'Symbol' in window &&
'finally' in Promise.prototype
);
// Latest version of Firefox and Safari do not have IntersectionObserver.
// Edge does not have requestIdleCallback.
// Safari does not have requestIdleCallback.
// This avoids shipping them all the polyfills.
/* eslint-disable @typescript-eslint/no-unnecessary-condition -- those properties might not exist in old browsers, even if they are always here in types */
const needsExtraPolyfills = !(
window.AbortController &&
window.IntersectionObserver &&
window.IntersectionObserverEntry &&
'isIntersecting' in IntersectionObserverEntry.prototype &&
window.requestIdleCallback
);
/* eslint-enable @typescript-eslint/no-unnecessary-condition */
const needsExtraPolyfills = !window.requestIdleCallback;
return Promise.all([
loadIntlPolyfills(),
needsBasePolyfills && importBasePolyfills(),
// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition -- those properties might not exist in old browsers, even if they are always here in types
needsExtraPolyfills && importExtraPolyfills(),
]);
}