WordPress/wp-includes/js/dist/blob.js

157 lines
4.5 KiB
JavaScript

/******/ (() => { // webpackBootstrap
/******/ "use strict";
/******/ // The require scope
/******/ var __webpack_require__ = {};
/******/
/************************************************************************/
/******/ /* webpack/runtime/define property getters */
/******/ (() => {
/******/ // define getter functions for harmony exports
/******/ __webpack_require__.d = (exports, definition) => {
/******/ for(var key in definition) {
/******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {
/******/ Object.defineProperty(exports, key, { enumerable: true, get: definition[key] });
/******/ }
/******/ }
/******/ };
/******/ })();
/******/
/******/ /* webpack/runtime/hasOwnProperty shorthand */
/******/ (() => {
/******/ __webpack_require__.o = (obj, prop) => (Object.prototype.hasOwnProperty.call(obj, prop))
/******/ })();
/******/
/******/ /* webpack/runtime/make namespace object */
/******/ (() => {
/******/ // define __esModule on exports
/******/ __webpack_require__.r = (exports) => {
/******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
/******/ }
/******/ Object.defineProperty(exports, '__esModule', { value: true });
/******/ };
/******/ })();
/******/
/************************************************************************/
var __webpack_exports__ = {};
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */ createBlobURL: () => (/* binding */ createBlobURL),
/* harmony export */ downloadBlob: () => (/* binding */ downloadBlob),
/* harmony export */ getBlobByURL: () => (/* binding */ getBlobByURL),
/* harmony export */ getBlobTypeByURL: () => (/* binding */ getBlobTypeByURL),
/* harmony export */ isBlobURL: () => (/* binding */ isBlobURL),
/* harmony export */ revokeBlobURL: () => (/* binding */ revokeBlobURL)
/* harmony export */ });
/* wp:polyfill */
const cache = {};
/**
* Create a blob URL from a file.
*
* @param file The file to create a blob URL for.
*
* @return The blob URL.
*/
function createBlobURL(file) {
const url = window.URL.createObjectURL(file);
cache[url] = file;
return url;
}
/**
* Retrieve a file based on a blob URL. The file must have been created by
* `createBlobURL` and not removed by `revokeBlobURL`, otherwise it will return
* `undefined`.
*
* @param url The blob URL.
*
* @return The file for the blob URL.
*/
function getBlobByURL(url) {
return cache[url];
}
/**
* Retrieve a blob type based on URL. The file must have been created by
* `createBlobURL` and not removed by `revokeBlobURL`, otherwise it will return
* `undefined`.
*
* @param url The blob URL.
*
* @return The blob type.
*/
function getBlobTypeByURL(url) {
return getBlobByURL(url)?.type.split('/')[0]; // 0: media type , 1: file extension eg ( type: 'image/jpeg' ).
}
/**
* Remove the resource and file cache from memory.
*
* @param url The blob URL.
*/
function revokeBlobURL(url) {
if (cache[url]) {
window.URL.revokeObjectURL(url);
}
delete cache[url];
}
/**
* Check whether a url is a blob url.
*
* @param url The URL.
*
* @return Is the url a blob url?
*/
function isBlobURL(url) {
if (!url || !url.indexOf) {
return false;
}
return url.indexOf('blob:') === 0;
}
/**
* Downloads a file, e.g., a text or readable stream, in the browser.
* Appropriate for downloading smaller file sizes, e.g., < 5 MB.
*
* Example usage:
*
* ```js
* const fileContent = JSON.stringify(
* {
* "title": "My Post",
* },
* null,
* 2
* );
* const filename = 'file.json';
*
* downloadBlob( filename, fileContent, 'application/json' );
* ```
*
* @param filename File name.
* @param content File content (BufferSource | Blob | string).
* @param contentType (Optional) File mime type. Default is `''`.
*/
function downloadBlob(filename, content, contentType = '') {
if (!filename || !content) {
return;
}
const file = new window.Blob([content], {
type: contentType
});
const url = window.URL.createObjectURL(file);
const anchorElement = document.createElement('a');
anchorElement.href = url;
anchorElement.download = filename;
anchorElement.style.display = 'none';
document.body.appendChild(anchorElement);
anchorElement.click();
document.body.removeChild(anchorElement);
window.URL.revokeObjectURL(url);
}
(window.wp = window.wp || {}).blob = __webpack_exports__;
/******/ })()
;