package{
	import flash.system.System;
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.external.ExternalInterface;
	import flash.net.SharedObject;
	import flash.net.URLLoader;
	import flash.net.URLRequest;
	
	public class request extends Sprite{
		private const SO_NAME:String = "helperSo";
		private const SAVE_LOCAL:String = "saveLocal";
		private const READ_LOCAL:String = "readLocal";
		private const SEND_REQUEST:String = "sendRequest";
		private const READY_CHECK:String ="readyCheck";

		public function request(){
			ExternalInterface.addCallback(SAVE_LOCAL, saveLocal);
			ExternalInterface.addCallback(READ_LOCAL, readLocal);
			ExternalInterface.addCallback(SEND_REQUEST, sendRequest);
			ExternalInterface.addCallback(READY_CHECK,readyCheck);
		}
		
		private function readyCheck():Boolean{
			return true;
		}
		
		private function saveLocal(name:String, value:Object):void{
			var so:SharedObject = SharedObject.getLocal(SO_NAME);
			so.data[name] = value;
			so.flush();
		}
		
		private function readLocal(name:String):Object{
			var so:SharedObject = SharedObject.getLocal(SO_NAME);
			return so.data[name];
		}
		
		public function sendRequest(url:String, handlerName:String, 
					method:String="GET",
					content:Object=null,
					headers:Object=null,
					cp:String="utf-8"):void{
			if(cp=="gbk"){
				System.useCodePage = true;
			}else{
				System.useCodePage = false;
			}
			var loader:URLLoader = new URLLoader();
			var request:URLRequest = new URLRequest(url);
			if(method){
				request.method = method;
			}
			if (headers){
				for each (var name:String in headers){
					request.requestHeaders[name] = headers[name];
				}
			}
			if (content){
				request.data = content;
			}
			loader.addEventListener(Event.COMPLETE, 
				function(e:Event):void{
					ExternalInterface.call(handlerName, loader.data);
			});
			loader.load(request);
		}

	}
}