blob.js
3.79 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
/******/ (function() { // webpackBootstrap
/******/ "use strict";
/******/ // The require scope
/******/ var __webpack_require__ = {};
/******/
/************************************************************************/
/******/ /* webpack/runtime/define property getters */
/******/ !function() {
/******/ // define getter functions for harmony exports
/******/ __webpack_require__.d = function(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 */
/******/ !function() {
/******/ __webpack_require__.o = function(obj, prop) { return Object.prototype.hasOwnProperty.call(obj, prop); }
/******/ }();
/******/
/******/ /* webpack/runtime/make namespace object */
/******/ !function() {
/******/ // define __esModule on exports
/******/ __webpack_require__.r = function(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": function() { return /* binding */ createBlobURL; },
/* harmony export */ "getBlobByURL": function() { return /* binding */ getBlobByURL; },
/* harmony export */ "getBlobTypeByURL": function() { return /* binding */ getBlobTypeByURL; },
/* harmony export */ "isBlobURL": function() { return /* binding */ isBlobURL; },
/* harmony export */ "revokeBlobURL": function() { return /* binding */ revokeBlobURL; }
/* harmony export */ });
/**
* Browser dependencies
*/
const {
createObjectURL,
revokeObjectURL
} = window.URL;
/**
* @type {Record<string, File|undefined>}
*/
const cache = {};
/**
* Create a blob URL from a file.
*
* @param {File} file The file to create a blob URL for.
*
* @return {string} The blob URL.
*/
function createBlobURL(file) {
const 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 {string} url The blob URL.
*
* @return {File|undefined} 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 {string} url The blob URL.
*
* @return {string|undefined} The blob type.
*/
function getBlobTypeByURL(url) {
var _getBlobByURL;
return (_getBlobByURL = getBlobByURL(url)) === null || _getBlobByURL === void 0 ? void 0 : _getBlobByURL.type.split('/')[0]; // 0: media type , 1: file extension eg ( type: 'image/jpeg' ).
}
/**
* Remove the resource and file cache from memory.
*
* @param {string} url The blob URL.
*/
function revokeBlobURL(url) {
if (cache[url]) {
revokeObjectURL(url);
}
delete cache[url];
}
/**
* Check whether a url is a blob url.
*
* @param {string} url The URL.
*
* @return {boolean} Is the url a blob url?
*/
function isBlobURL(url) {
if (!url || !url.indexOf) {
return false;
}
return url.indexOf('blob:') === 0;
}
(window.wp = window.wp || {}).blob = __webpack_exports__;
/******/ })()
;