/** * @class Ext.util.Cookies * Utility class for managing and interacting with cookies. * @singleton */ Ext.util.Cookies = {
/** * Create a cookie with the specified name and value. Additional settings * for the cookie may be optionally specified (for example: expiration, * access restriction, SSL). * @param {Object} name * @param {Object} value * @param {Object} expires (Optional) Specify an expiration date the * cookie is to persist until. Note that the specified Date object will * be converted to Greenwich Mean Time (GMT). * @param {String} path (Optional) Setting a path on the cookie restricts * access to pages that match that path. Defaults to all pages ('/'). * @param {String} domain (Optional) Setting a domain restricts access to * pages on a given domain (typically used to allow cookie access across * subdomains). For example, "extjs.com" will create a cookie that can be * accessed from any subdomain of extjs.com, including www.extjs.com, * support.extjs.com, etc. * @param {Boolean} secure (Optional) Specify true to indicate that the cookie * should only be accessible via SSL on a page using the HTTPS protocol. * Defaults to false. Note that this will only work if the page * calling this code uses the HTTPS protocol, otherwise the cookie will be * created with default options. */ set : function(name, value){ var argv = arguments; var argc = arguments.length; var expires = (argc > 2) ? argv[2] : null; var path = (argc > 3) ? argv[3] : '/'; var domain = (argc > 4) ? argv[4] : null; var secure = (argc > 5) ? argv[5] : false; document.cookie = name + "=" + escape(value) + ((expires === null) ? "" : ("; expires=" + expires.toGMTString())) + ((path === null) ? "" : ("; path=" + path)) + ((domain === null) ? "" : ("; domain=" + domain)) + ((secure === true) ? "; secure" : ""); },
/** * Retrieves cookies that are accessible by the current page. If a cookie * does not exist, get() returns null. The following * example retrieves the cookie called "valid" and stores the String value * in the variable validStatus. *

     * var validStatus = Ext.util.Cookies.get("valid");
     * 
* @param {Object} name The name of the cookie to get * @return {Mixed} Returns the cookie value for the specified name; * null if the cookie name does not exist. */ get : function(name){ var arg = name + "="; var alen = arg.length; var clen = document.cookie.length; var i = 0; var j = 0; while(i < clen){ j = i + alen; if(document.cookie.substring(i, j) == arg){ return Ext.util.Cookies.getCookieVal(j); } i = document.cookie.indexOf(" ", i) + 1; if(i === 0){ break; } } return null; },
/** * Removes a cookie with the provided name from the browser * if found. * @param {Object} name The name of the cookie to remove */ clear : function(name){ if(Ext.util.Cookies.get(name)){ document.cookie = name + "=" + "; expires=Thu, 01-Jan-70 00:00:01 GMT"; } }, /** * @private */ getCookieVal : function(offset){ var endstr = document.cookie.indexOf(";", offset); if(endstr == -1){ endstr = document.cookie.length; } return unescape(document.cookie.substring(offset, endstr)); } };