+/**
+ * @class Ext.state.CookieProvider
+ * @extends Ext.state.Provider
+ * The default Provider implementation which saves state via cookies.
+ * Usage:
+
+ var cp = new Ext.state.CookieProvider({
+ path: "/cgi-bin/",
+ expires: new Date(new Date().getTime()+(1000*60*60*24*30)), //30 days
+ domain: "extjs.com"
+ });
+ Ext.state.Manager.setProvider(cp);
+
+ * @cfg {String} path The path for which the cookie is active (defaults to root '/' which makes it active for all pages in the site)
+ * @cfg {Date} expires The cookie expiration date (defaults to 7 days from now)
+ * @cfg {String} domain The domain to save the cookie for. Note that you cannot specify a different domain than
+ * your page is on, but you can specify a sub-domain, or simply the domain itself like 'extjs.com' to include
+ * all sub-domains if you need to access cookies across different sub-domains (defaults to null which uses the same
+ * domain the page is running on including the 'www' like 'www.extjs.com')
+ * @cfg {Boolean} secure True if the site is using SSL (defaults to false)
+ * @constructor
+ * Create a new CookieProvider
+ * @param {Object} config The configuration object
+ */
+Ext.state.CookieProvider = function(config){
+ Ext.state.CookieProvider.superclass.constructor.call(this);
+ this.path = "/";
+ this.expires = new Date(new Date().getTime()+(1000*60*60*24*7)); //7 days
+ this.domain = null;
+ this.secure = false;
+ Ext.apply(this, config);
+ this.state = this.readCookies();
+};
+
+Ext.extend(Ext.state.CookieProvider, Ext.state.Provider, {
+ // private
+ set : function(name, value){
+ if(typeof value == "undefined" || value === null){
+ this.clear(name);
+ return;
+ }
+ this.setCookie(name, value);
+ Ext.state.CookieProvider.superclass.set.call(this, name, value);
+ },
+
+ // private
+ clear : function(name){
+ this.clearCookie(name);
+ Ext.state.CookieProvider.superclass.clear.call(this, name);
+ },
+
+ // private
+ readCookies : function(){
+ var cookies = {};
+ var c = document.cookie + ";";
+ var re = /\s?(.*?)=(.*?);/g;
+ var matches;
+ while((matches = re.exec(c)) != null){
+ var name = matches[1];
+ var value = matches[2];
+ if(name && name.substring(0,3) == "ys-"){
+ cookies[name.substr(3)] = this.decodeValue(value);
+ }
+ }
+ return cookies;
+ },
+
+ // private
+ setCookie : function(name, value){
+ document.cookie = "ys-"+ name + "=" + this.encodeValue(value) +
+ ((this.expires == null) ? "" : ("; expires=" + this.expires.toGMTString())) +
+ ((this.path == null) ? "" : ("; path=" + this.path)) +
+ ((this.domain == null) ? "" : ("; domain=" + this.domain)) +
+ ((this.secure == true) ? "; secure" : "");
+ },
+
+ // private
+ clearCookie : function(name){
+ document.cookie = "ys-" + name + "=null; expires=Thu, 01-Jan-70 00:00:01 GMT" +
+ ((this.path == null) ? "" : ("; path=" + this.path)) +
+ ((this.domain == null) ? "" : ("; domain=" + this.domain)) +
+ ((this.secure == true) ? "; secure" : "");
+ }
+});