wf.ns('wf.state');
wf.state.Provider=function(){
this.addEvents("statechange");
this.state={};
wf.state.Provider.superclass.constructor.call(this);};
wf.extend(wf.state.Provider,wf.Observable,{
get:function(name,defaultValue){
return typeof this.state[name]=="undefined"?
defaultValue:this.state[name];},
clear:function(name){
delete this.state[name];
this.fireEvent("statechange",this,name,null);},
set:function(name,value){
this.state[name]=value;
this.fireEvent("statechange",this,name,value);},
decodeValue:function(cookie){
var re=/^(a|n|d|b|s|o)\:(.*)$/;
var matches=re.exec(unescape(cookie));
if(!matches||!matches[1])return;
var type=matches[1];
var v=matches[2];
switch(type){
case "n":
return parseFloat(v);
case "d":
return new Date(Date.parse(v));
case "b":
return(v=="1");
case "a":
var all=[];
var values=v.split("^");
for(var i=0,len=values.length;i<len;i++){
all.push(this.decodeValue(values[i]));}
return all;
case "o":
var all={};
var values=v.split("^");
for(var i=0,len=values.length;i<len;i++){
var kv=values[i].split("=");
all[kv[0]]=this.decodeValue(kv[1]);}
return all;
default:
return v;}},
encodeValue:function(v){
var enc;
if(typeof v=="number"){
enc="n:"+v;}else if(typeof v=="boolean"){
enc="b:"+(v?"1":"0");}else if(v instanceof Date){
enc="d:"+v.toGMTString();}else if(v instanceof Array){
var flat="";
for(var i=0,len=v.length;i<len;i++){
flat+=this.encodeValue(v[i]);
if(i!=len-1)flat+="^";}
enc="a:"+flat;}else if(typeof v=="object"){
var flat="";
for(var key in v){
if(typeof v[key]!="function"&&v[key]!==undefined){
flat+=key+"="+this.encodeValue(v[key])+"^";}}
enc="o:"+flat.substring(0,flat.length-1);}else{
enc="s:"+v;}
return escape(enc);}});
wf.state.CookieProvider=function(config){
wf.state.CookieProvider.superclass.constructor.call(this);
this.path="/";
this.expires=new Date(new Date().getTime()+(1000*60*60*24*7));
this.domain=null;
this.secure=false;
wf.apply(this,config);
this.state=this.readCookies();};
wf.extend(wf.state.CookieProvider,wf.state.Provider,{
set:function(name,value){
if(typeof value=="undefined"||value===null){
this.clear(name);
return;}
this.setCookie(name,value);
wf.state.CookieProvider.superclass.set.call(this,name,value);},
clear:function(name){
this.clearCookie(name);
wf.state.CookieProvider.superclass.clear.call(this,name);},
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;},
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":"");},
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":"");}});
wf.state.Manager=function(){
var provider=new wf.state.Provider();
return{
setProvider:function(stateProvider){
provider=stateProvider;},
get:function(key,defaultValue){
return provider.get(key,defaultValue);},
set:function(key,value){
provider.set(key,value);},
clear:function(key){
provider.clear(key);},
getProvider:function(){
return provider;}};}();