forked from fedi/mastodon
0758b00bfd
- Use URL.createObjectURL (replace from FileReader) - Use HTMLCanvasElement.prototype.toBlob (replace from HTMLCanvasElement.prototype.toDataURL) - Use Promise (replace callback interface)
45 lines
1,006 B
JavaScript
45 lines
1,006 B
JavaScript
import 'intl';
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import 'intl/locale-data/jsonp/en';
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import 'es6-symbol/implement';
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import includes from 'array-includes';
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import assign from 'object-assign';
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import values from 'object.values';
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import isNaN from 'is-nan';
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import { decode as decodeBase64 } from './utils/base64';
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if (!Array.prototype.includes) {
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includes.shim();
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}
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if (!Object.assign) {
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Object.assign = assign;
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}
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if (!Object.values) {
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values.shim();
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}
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if (!Number.isNaN) {
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Number.isNaN = isNaN;
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}
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if (!HTMLCanvasElement.prototype.toBlob) {
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const BASE64_MARKER = ';base64,';
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Object.defineProperty(HTMLCanvasElement.prototype, 'toBlob', {
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value(callback, type = 'image/png', quality) {
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const dataURL = this.toDataURL(type, quality);
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let data;
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if (dataURL.indexOf(BASE64_MARKER) >= 0) {
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const [, base64] = dataURL.split(BASE64_MARKER);
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data = decodeBase64(base64);
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} else {
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[, data] = dataURL.split(',');
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}
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callback(new Blob([data], { type }));
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},
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});
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}
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