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132 changes: 132 additions & 0 deletions
132
app/code/Magento/Theme/view/frontend/templates/js/polyfill.phtml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| <?php | ||
| /** | ||
| * Copyright © Magento, Inc. All rights reserved. | ||
| * See COPYING.txt for license details. | ||
| */ | ||
|
|
||
| /** | ||
| * Polyfill for local storage and session storage for old browsers and with enabled private mode. | ||
| * | ||
| * Emulates behavior of the native local storage and session storage. Adds ability to use "getItem", "setItem", | ||
| * "removeItem" methods. | ||
| */ | ||
| ?> | ||
|
|
||
| <script> | ||
| try { | ||
| if (!window.localStorage || !window.sessionStorage) { | ||
| throw new Error(); | ||
| } | ||
|
|
||
| localStorage.setItem('storage_test', 1); | ||
| localStorage.removeItem('storage_test'); | ||
| } catch(e) { | ||
| (function () { | ||
| var Storage = function (type) { | ||
| var data; | ||
|
|
||
| function createCookie(name, value, days) { | ||
| var date, expires; | ||
|
|
||
| if (days) { | ||
| date = new Date(); | ||
| date.setTime(date.getTime()+(days * 24 * 60 * 60 * 1000)); | ||
| expires = '; expires=' + date.toGMTString(); | ||
| } else { | ||
| expires = ''; | ||
| } | ||
| document.cookie = name + '=' + value+expires+'; path=/'; | ||
| } | ||
|
|
||
| function readCookie(name) { | ||
| var nameEQ = name + '=', | ||
| ca = document.cookie.split(';'), | ||
| i = 0, | ||
| c; | ||
|
|
||
| for (i=0; i < ca.length; i++) { | ||
| c = ca[i]; | ||
|
|
||
| while (c.charAt(0) === ' ') { | ||
| c = c.substring(1,c.length); | ||
| } | ||
|
|
||
| if (c.indexOf(nameEQ) === 0) { | ||
| return c.substring(nameEQ.length, c.length); | ||
| } | ||
| } | ||
|
|
||
| return null; | ||
| } | ||
|
|
||
| function setData(data) { | ||
| data = encodeURIComponent(JSON.stringify(data)); | ||
| createCookie(type === 'session' ? getSessionName() : 'localStorage', data, 365); | ||
| } | ||
|
|
||
| function clearData() { | ||
| createCookie(type === 'session' ? getSessionName() : 'localStorage', '', 365); | ||
| } | ||
|
|
||
| function getData() { | ||
| var data = type === 'session' ? readCookie(getSessionName()) : readCookie('localStorage'); | ||
|
|
||
| return data ? JSON.parse(decodeURIComponent(data)) : {}; | ||
| } | ||
|
|
||
| function getSessionName() { | ||
| if (!window.name) { | ||
| window.name = new Date().getTime(); | ||
| } | ||
|
|
||
| return 'sessionStorage' + window.name; | ||
| } | ||
|
|
||
| data = getData(); | ||
|
|
||
| return { | ||
| length: 0, | ||
| clear: function () { | ||
| data = {}; | ||
| this.length = 0; | ||
| clearData(); | ||
| }, | ||
|
|
||
| getItem: function (key) { | ||
| return data[key] === undefined ? null : data[key]; | ||
| }, | ||
|
|
||
| key: function (i) { | ||
| var ctr = 0, | ||
| k; | ||
|
|
||
| for (k in data) { | ||
| if (ctr.toString() === i.toString()) { | ||
| return k; | ||
| } else { | ||
| ctr++ | ||
| } | ||
| } | ||
|
|
||
| return null; | ||
| }, | ||
|
|
||
| removeItem: function (key) { | ||
| delete data[key]; | ||
| this.length--; | ||
| setData(data); | ||
| }, | ||
|
|
||
| setItem: function (key, value) { | ||
| data[key] = value.toString(); | ||
| this.length++; | ||
| setData(data); | ||
| } | ||
| }; | ||
| }; | ||
|
|
||
| window.localStorage.__proto__ = window.localStorage = new Storage('local'); | ||
| window.sessionStorage.__proto__ = window.sessionStorag = new Storage('session'); | ||
| })(); | ||
| } | ||
| </script> |