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utils.js
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78 lines (68 loc) · 1.57 KB
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
// @flow
import type { SourceContent } from "../types";
/**
* Utils for utils, by utils
* @module utils/utils
*/
/**
* @memberof utils/utils
* @static
*/
export function handleError(err: any) {
console.log("ERROR: ", err);
}
/**
* @memberof utils/utils
* @static
*/
export function promisify(
context: any,
method: any,
...args: any
): Promise<mixed> {
return new Promise((resolve, reject) => {
args.push(response => {
if (response.error) {
reject(response);
} else {
resolve(response);
}
});
method.apply(context, args);
});
}
/**
* @memberof utils/utils
* @static
*/
export function endTruncateStr(str: any, size: number) {
if (str.length > size) {
return `…${str.slice(str.length - size)}`;
}
return str;
}
export function waitForMs(ms: number): Promise<void> {
return new Promise(resolve => setTimeout(resolve, ms));
}
export function downloadFile(content: SourceContent, fileName: string) {
if (content.type !== "text") {
return;
}
const data = content.value;
const { body } = document;
if (!body) {
return;
}
const a = document.createElement("a");
body.appendChild(a);
a.className = "download-anchor";
a.href = window.URL.createObjectURL(
new Blob([data], { type: "text/javascript" })
);
a.setAttribute("download", fileName);
a.click();
body.removeChild(a);
}