mui2-file-dropzone/dist/helpers.js

A Material-UI file-upload dropzone. Written in TypeScript.

import { __awaiter } from "tslib";
export function isImage(file) {
    if (file.type.split("/")[0] === "image") {
        return true;
    }
}
const bytesInKiloB = 1024; // 2 ** 10;
const bytesInMegaB = 1048576; // bytesInKiloB ** 2;
export function convertBytesToMbsOrKbs(filesize) {
    let size = "";
    if (filesize >= bytesInMegaB) {
        size = filesize / bytesInMegaB + " megabytes";
    }
    else if (filesize >= bytesInKiloB) {
        size = filesize / bytesInKiloB + " kilobytes";
    }
    else {
        size = filesize + " bytes";
    }
    return size;
}
export function createFileFromUrl(url) {
    return __awaiter(this, void 0, void 0, function* () {
        const response = yield fetch(url);
        const data = yield response.blob();
        const metadata = { type: data.type };
        const filename = url.replace(/\?.+/, "").split("/").pop();
        return new File([data], filename, metadata);
    });
}
export function readFile(file) {
    return new Promise((resolve, reject) => {
        const reader = new FileReader();
        reader.onload = (event) => {
            var _a;
            resolve((_a = event.target) === null || _a === void 0 ? void 0 : _a.result);
        };
        reader.onerror = (event) => {
            reader.abort();
            reject(event);
        };
        reader.readAsDataURL(file);
    });
}
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