90 lines
3.6 KiB
JavaScript
90 lines
3.6 KiB
JavaScript
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/*jslint browser: true */ /*global jQuery: true */
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/**
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* jQuery Cookie plugin
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*
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* Copyright (c) 2010 Klaus Hartl (stilbuero.de)
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* Dual licensed under the MIT and GPL licenses:
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* http://www.opensource.org/licenses/mit-license.php
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* http://www.gnu.org/licenses/gpl.html
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*
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*/
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// TODO JsDoc
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/**
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* Create a cookie with the given key and value and other optional parameters.
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*
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* @example $.cookie('the_cookie', 'the_value');
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* @desc Set the value of a cookie.
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* @example $.cookie('the_cookie', 'the_value', { expires: 7, path: '/', domain: 'jquery.com', secure: true });
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* @desc Create a cookie with all available options.
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* @example $.cookie('the_cookie', 'the_value');
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* @desc Create a session cookie.
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* @example $.cookie('the_cookie', null);
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* @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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* used when the cookie was set.
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*
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* @param String key The key of the cookie.
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* @param String value The value of the cookie.
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* @param Object options An object literal containing key/value pairs to provide optional cookie attributes.
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* @option Number|Date expires Either an integer specifying the expiration date from now on in days or a Date object.
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* If a negative value is specified (e.g. a date in the past), the cookie will be deleted.
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* If set to null or omitted, the cookie will be a session cookie and will not be retained
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* when the the browser exits.
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* @option String path The value of the path atribute of the cookie (default: path of page that created the cookie).
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* @option String domain The value of the domain attribute of the cookie (default: domain of page that created the cookie).
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* @option Boolean secure If true, the secure attribute of the cookie will be set and the cookie transmission will
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* require a secure protocol (like HTTPS).
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* @type undefined
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*
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* @name $.cookie
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* @cat Plugins/Cookie
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* @author Klaus Hartl/klaus.hartl@stilbuero.de
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*/
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/**
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* Get the value of a cookie with the given key.
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*
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* @example $.cookie('the_cookie');
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* @desc Get the value of a cookie.
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*
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* @param String key The key of the cookie.
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* @return The value of the cookie.
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* @type String
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*
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* @name $.cookie
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* @cat Plugins/Cookie
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* @author Klaus Hartl/klaus.hartl@stilbuero.de
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*/
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jQuery.cookie = function (key, value, options) {
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// key and value given, set cookie...
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if (arguments.length > 1 && (value === null || typeof value !== "object")) {
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options = jQuery.extend({}, options);
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if (value === null) {
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options.expires = -1;
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}
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if (typeof options.expires === 'number') {
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var days = options.expires, t = options.expires = new Date();
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t.setDate(t.getDate() + days);
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}
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return (document.cookie = [
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encodeURIComponent(key), '=',
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options.raw ? String(value) : encodeURIComponent(String(value)),
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options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
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options.path ? '; path=' + options.path : '',
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options.domain ? '; domain=' + options.domain : '',
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options.secure ? '; secure' : ''
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].join(''));
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}
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// key and possibly options given, get cookie...
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options = value || {};
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var result, decode = options.raw ? function (s) { return s; } : decodeURIComponent;
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return (result = new RegExp('(?:^|; )' + encodeURIComponent(key) + '=([^;]*)').exec(document.cookie)) ? decode(result[1]) : null;
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};
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