[44] | 1 | /**
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| 2 | * Cookie plugin
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| 3 | *
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| 4 | * Copyright (c) 2006 Klaus Hartl (stilbuero.de)
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| 5 | * Dual licensed under the MIT and GPL licenses:
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| 6 | * http://www.opensource.org/licenses/mit-license.php
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| 7 | * http://www.gnu.org/licenses/gpl.html
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| 8 | *
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| 9 | */
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| 10 |
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| 11 | /**
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| 12 | * Create a cookie with the given name and value and other optional parameters.
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| 13 | *
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| 14 | * @example $.cookie('the_cookie', 'the_value');
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| 15 | * @desc Set the value of a cookie.
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| 16 | * @example $.cookie('the_cookie', 'the_value', { expires: 7, path: '/', domain: 'jquery.com', secure: true });
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| 17 | * @desc Create a cookie with all available options.
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| 18 | * @example $.cookie('the_cookie', 'the_value');
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| 19 | * @desc Create a session cookie.
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| 20 | * @example $.cookie('the_cookie', null);
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| 21 | * @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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| 22 | * used when the cookie was set.
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| 23 | *
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| 24 | * @param String name The name of the cookie.
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| 25 | * @param String value The value of the cookie.
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| 26 | * @param Object options An object literal containing key/value pairs to provide optional cookie attributes.
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| 27 | * @option Number|Date expires Either an integer specifying the expiration date from now on in days or a Date object.
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| 28 | * If a negative value is specified (e.g. a date in the past), the cookie will be deleted.
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| 29 | * If set to null or omitted, the cookie will be a session cookie and will not be retained
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| 30 | * when the the browser exits.
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| 31 | * @option String path The value of the path atribute of the cookie (default: path of page that created the cookie).
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| 32 | * @option String domain The value of the domain attribute of the cookie (default: domain of page that created the cookie).
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| 33 | * @option Boolean secure If true, the secure attribute of the cookie will be set and the cookie transmission will
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| 34 | * require a secure protocol (like HTTPS).
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| 35 | * @type undefined
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| 36 | *
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| 37 | * @name $.cookie
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| 38 | * @cat Plugins/Cookie
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| 39 | * @author Klaus Hartl/klaus.hartl@stilbuero.de
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| 40 | */
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| 41 |
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| 42 | /**
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| 43 | * Get the value of a cookie with the given name.
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| 44 | *
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| 45 | * @example $.cookie('the_cookie');
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| 46 | * @desc Get the value of a cookie.
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| 47 | *
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| 48 | * @param String name The name of the cookie.
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| 49 | * @return The value of the cookie.
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| 50 | * @type String
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| 51 | *
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| 52 | * @name $.cookie
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| 53 | * @cat Plugins/Cookie
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| 54 | * @author Klaus Hartl/klaus.hartl@stilbuero.de
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| 55 | */
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| 56 | jQuery.cookie = function(name, value, options) {
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| 57 | if (typeof value != 'undefined') { // name and value given, set cookie
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| 58 | options = options || {};
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| 59 | if (value === null) {
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| 60 | value = '';
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| 61 | options.expires = -1;
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| 62 | }
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| 63 | var expires = '';
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| 64 | if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {
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| 65 | var date;
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| 66 | if (typeof options.expires == 'number') {
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| 67 | date = new Date();
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| 68 | date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
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| 69 | } else {
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| 70 | date = options.expires;
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| 71 | }
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| 72 | expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE
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| 73 | }
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| 74 | // CAUTION: Needed to parenthesize options.path and options.domain
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| 75 | // in the following expressions, otherwise they evaluate to undefined
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| 76 | // in the packed version for some reason...
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| 77 | var path = options.path ? '; path=' + (options.path) : '';
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| 78 | var domain = options.domain ? '; domain=' + (options.domain) : '';
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| 79 | var secure = options.secure ? '; secure' : '';
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| 80 | document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
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| 81 | } else { // only name given, get cookie
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| 82 | var cookieValue = null;
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| 83 | if (document.cookie && document.cookie != '') {
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| 84 | var cookies = document.cookie.split(';');
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| 85 | for (var i = 0; i < cookies.length; i++) {
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| 86 | var cookie = jQuery.trim(cookies[i]);
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| 87 | // Does this cookie string begin with the name we want?
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| 88 | if (cookie.substring(0, name.length + 1) == (name + '=')) {
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| 89 | cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
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| 90 | break;
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| 91 | }
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| 92 | }
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| 93 | }
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| 94 | return cookieValue;
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| 95 | }
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| 96 | }; |
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