1 | /*jslint browser: true */ /*global jQuery: true */
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2 |
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3 | /**
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4 | * jQuery Cookie plugin
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5 | *
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6 | * Copyright (c) 2010 Klaus Hartl (stilbuero.de)
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7 | * Dual licensed under the MIT and GPL licenses:
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8 | * http://www.opensource.org/licenses/mit-license.php
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9 | * http://www.gnu.org/licenses/gpl.html
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10 | *
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11 | */
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12 |
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13 | // TODO JsDoc
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14 |
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15 | /**
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16 | * Create a cookie with the given key and value and other optional parameters.
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17 | *
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18 | * @example $.cookie('the_cookie', 'the_value');
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19 | * @desc Set the value of a cookie.
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20 | * @example $.cookie('the_cookie', 'the_value', { expires: 7, path: '/', domain: 'jquery.com', secure: true });
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21 | * @desc Create a cookie with all available options.
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22 | * @example $.cookie('the_cookie', 'the_value');
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23 | * @desc Create a session cookie.
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24 | * @example $.cookie('the_cookie', null);
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25 | * @desc Delete a cookie by passing null as value. Keep in mind that you have to use the same path and domain
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26 | * used when the cookie was set.
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27 | *
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28 | * @param String key The key of the cookie.
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29 | * @param String value The value of the cookie.
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30 | * @param Object options An object literal containing key/value pairs to provide optional cookie attributes.
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31 | * @option Number|Date expires Either an integer specifying the expiration date from now on in days or a Date object.
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32 | * If a negative value is specified (e.g. a date in the past), the cookie will be deleted.
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33 | * If set to null or omitted, the cookie will be a session cookie and will not be retained
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34 | * when the the browser exits.
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35 | * @option String path The value of the path atribute of the cookie (default: path of page that created the cookie).
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36 | * @option String domain The value of the domain attribute of the cookie (default: domain of page that created the cookie).
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37 | * @option Boolean secure If true, the secure attribute of the cookie will be set and the cookie transmission will
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38 | * require a secure protocol (like HTTPS).
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39 | * @type undefined
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40 | *
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41 | * @name $.cookie
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42 | * @cat Plugins/Cookie
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43 | * @author Klaus Hartl/[email protected]
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44 | */
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45 |
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46 | /**
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47 | * Get the value of a cookie with the given key.
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48 | *
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49 | * @example $.cookie('the_cookie');
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50 | * @desc Get the value of a cookie.
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51 | *
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52 | * @param String key The key of the cookie.
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53 | * @return The value of the cookie.
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54 | * @type String
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55 | *
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56 | * @name $.cookie
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57 | * @cat Plugins/Cookie
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58 | * @author Klaus Hartl/[email protected]
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59 | */
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60 | jQuery.cookie = function (key, value, options) {
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61 |
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62 | // key and value given, set cookie...
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63 | if (arguments.length > 1 && (value === null || typeof value !== "object")) {
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64 | options = jQuery.extend({}, options);
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65 |
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66 | if (value === null) {
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67 | options.expires = -1;
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68 | }
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69 |
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70 | if (typeof options.expires === 'number') {
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71 | var days = options.expires, t = options.expires = new Date();
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72 | t.setDate(t.getDate() + days);
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73 | }
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74 |
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75 | return (document.cookie = [
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76 | encodeURIComponent(key), '=',
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77 | options.raw ? String(value) : encodeURIComponent(String(value)),
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78 | options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
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79 | options.path ? '; path=' + options.path : '',
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80 | options.domain ? '; domain=' + options.domain : '',
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81 | options.secure ? '; secure' : ''
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82 | ].join(''));
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83 | }
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84 |
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85 | // key and possibly options given, get cookie...
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86 | options = value || {};
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87 | var result, decode = options.raw ? function (s) { return s; } : decodeURIComponent;
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88 | return (result = new RegExp('(?:^|; )' + encodeURIComponent(key) + '=([^;]*)').exec(document.cookie)) ? decode(result[1]) : null;
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89 | };
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