Source/Utilities/Cookie.js

   1 /*
   2 ---
   3
   4 name: Cookie
   5
   6 description: Class for creating, reading, and deleting browser Cookies.
   7
   8 license: MIT-style license.
   9
  10 credits:
  11   - Based on the functions by Peter-Paul Koch (http://quirksmode.org).
  12
  13 requires: [Options, Browser]
  14
  15 provides: Cookie
  16
  17 ...
  18 */
  19
  20 var Cookie = new Class({
  21
  22         Implements: Options,
  23
  24         options: {
  25                 path: '/',
  26                 domain: false,
  27                 duration: false,
  28                 secure: false,
  29                 document: document,
  30                 encode: true
  31         },
  32
  33         initialize: function(key, options){
  34                 this.key = key;
  35                 this.setOptions(options);
  36         },
  37
  38         write: function(value){
  39                 if (this.options.encode) value = encodeURIComponent(value);
  40                 if (this.options.domain) value += '; domain=' + this.options.domain;
  41                 if (this.options.path) value += '; path=' + this.options.path;
  42                 if (this.options.duration){
  43                         var date = new Date();
  44                         date.setTime(date.getTime() + this.options.duration * 24 * 60 * 60 * 1000);
  45                         value += '; expires=' + date.toGMTString();
  46                 }
  47                 if (this.options.secure) value += '; secure';
  48                 this.options.document.cookie = this.key + '=' + value;
  49                 return this;
  50         },
  51
  52         read: function(){
  53                 var value = this.options.document.cookie.match('(?:^|;)\\s*' + this.key.escapeRegExp() + '=([^;]*)');
  54                 return (value) ? decodeURIComponent(value[1]) : null;
  55         },
  56
  57         dispose: function(){
  58                 new Cookie(this.key, Object.merge({}, this.options, {duration: -1})).write('');
  59                 return this;
  60         }
  61
  62 });
  63
  64 Cookie.write = function(key, value, options){
  65         return new Cookie(key, options).write(value);
  66 };
  67
  68 Cookie.read = function(key){
  69         return new Cookie(key).read();
  70 };
  71
  72 Cookie.dispose = function(key, options){
  73         return new Cookie(key, options).dispose();
  74 };