third-party/jquery-html5storage-1.0/jquery.html5storage.js

   1 /*!
   2 * jQuery Plugin to use Local Storage or Session Storage without worrying
   3 * about HTML5 support. It uses Cookies for backward compatibility.
   4 *
   5 * @author Alberto Varela Sánchez (http://www.berriart.com)
   6 * @version 1.0 (17th January 2013)
   7 *
   8 * Released under the MIT License (http://opensource.org/licenses/MIT)
   9 *
  10 * Copyright (c) 2013 Alberto Varela Sánchez (alberto@berriart.com)
  11 *
  12 * Permission is hereby granted, free of charge, to any person obtaining a
  13 * copy of this software and associated documentation files (the "Software"),
  14 * to deal in the Software without restriction, including without limitation
  15 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  16 * and/or sell copies of the Software, and to permit persons to whom the
  17 * Software is furnished to do so, subject to the following conditions:
  18 *
  19 * The above copyright notice and this permission notice shall be included in
  20 * all copies or substantial portions of the Software.
  21
  22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  23 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  24 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  25 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  26 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  27 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  28 * THE SOFTWARE.
  29 */
  30
  31 ;(function(window, $ ) {
  32     "use strict";
  33
  34     var types = ['localStorage','sessionStorage'],
  35         support = [];
  36
  37     $.each(types, function( i, type ) {
  38         try {
  39             support[type] = type in window && window[type] !== null;
  40         } catch (e) {
  41             support[type] = false;
  42         }
  43
  44         $[type] = {
  45             settings : {
  46                 cookiePrefix : 'html5fallback:' + type + ':',
  47                 cookieOptions : {
  48                     path : '/',
  49                     domain : document.domain,
  50                     expires : ('localStorage' === type) ? { expires: 365 } : undefined
  51                 }
  52             },
  53
  54             getItem : function( key ) {
  55                 var response;
  56                 if(support[type]) {
  57                     response = window[type].getItem(key);
  58                 }
  59                 else {
  60                     response = $.cookie(this.settings.cookiePrefix + key);
  61                 }
  62
  63                 return response;
  64             },
  65
  66             setItem : function( key, value ) {
  67                 if(support[type]) {
  68                     return window[type].setItem(key, value);
  69                 }
  70                 else {
  71                     return $.cookie(this.settings.cookiePrefix + key, value, this.settings.cookieOptions);
  72                 }
  73             },
  74
  75             removeItem : function( key ) {
  76                 if(support[type]) {
  77                     return window[type].removeItem(key);
  78                 }
  79                 else {
  80                     var options = $.extend(this.settings.cookieOptions, {
  81                         expires: -1
  82                     });
  83                     return $.cookie(this.settings.cookiePrefix + key, null, options);
  84                 }
  85             },
  86
  87             clear : function() {
  88                 if(support[type]) {
  89                     return window[type].clear();
  90                 }
  91                 else {
  92                     var reg = new RegExp('^' + this.settings.cookiePrefix, ''),
  93                         options = $.extend(this.settings.cookieOptions, {
  94                             expires: -1
  95                         });
  96
  97                     if(document.cookie && document.cookie !== ''){
  98                         $.each(document.cookie.split(';'), function( i, cookie ){
  99                             if(reg.test(cookie = $.trim(cookie))) {
 100                                  $.cookie( cookie.substr(0,cookie.indexOf('=')), null, options);
 101                             }
 102                         });
 103                     }
 104                 }
 105             }
 106         };
 107     });
 108 })(window, jQuery);