/*
Title: [popup.js简介]
简介:
>   popup.js代码分如下部分：Popup类、Dragdrop类、adPopup类、Periodical类
>   Popup类，核心类，利用Class创建，支持构造函数，继承；实现了弹出框除了拖动、effect以外的其他效果
>   Dragdrop类，实现了弹出框的拖动效果，该拖动类具备一定的通用性
>   adPopup类，继承了Popup类，实现了少量effect效果，完全不具备通用性
>   Periodical类，为定时器类，辅助实现实现effect效果，功能简单

需要包含的文件:
>  需要引入如下部分：公共函数、事件对象、Class类、
>   公共函数包括：G()、Function.prototype.bind、Function.prototype.bindAsEventListener（base.js）
>   事件对象，用于事件处理（event.js）
>   Class类，实现类的构造函数、继承（base.js）
*/
if(!Array.prototype.push){
	Array.prototype.push=function (){
		var startLength=this.length;
		for(var i=0;i<arguments.length;i++)
			this[startLength+i]=arguments[i];
			return this.length;
		}
	};

/*
Function: G
    类似prototype-$()

参数:
	dom 对象的id

返回值:
	dom 对象

*/
function G(){
	var elements=new Array();
	for(var i=0;i<arguments.length;i++){
		var element=arguments[i];
		if(typeof element=='string')
			element=document.getElementById(element);
		if(arguments.length==1)
			return element;
		elements.push(element);
		};
	return elements;
};

/*
Function: Function.prototype.bind
    将某函数绑定当前this指针执行

示例:
    (start code)
    this.effectC=new Periodical(this.effect_show.bind(this),50);
	//函数effect_show在执行时this将指向当前this而不是函数本身，该代码来至类adPopup类
    (end)

*/
Function.prototype.bind=function (object){
	var __method=this;
	return function (){
		__method.apply(object,arguments);
	};
};

/*
Function: Function.prototype.bindAsEventListener
    作用与Function.prototype.bind类似，但多传递event，用于事件处理

示例:
    (start code)
    Event.observe(G('dialogBoxClose'),"click",this.reset.bindAsEventListener(this),false);
	//绑定click事件，同事传入this根event
    (end)
*/
Function.prototype.bindAsEventListener=function (object){
	var __method=this;
	return function (event){
		__method.call(object,event||window.event);
	};
};

/*
Function: Object.extend
    用于对象扩展
*/

Object.extend=function (destination,source){
	for(property in source){
		destination[property]=source[property];
	};
	return destination;
};



/**
 * 事件对象
 */
if(!window.Event){
	var Event=new Object();
};

Object.extend(Event,{

	/**
	 * 属性 缓存的事件的列表
	 * this.observers 的数据格式是一个二维数组，二维的数组分别四个元素分别是
	 * [注册事件对象，事件名，事件处理函数，事件处理模式布尔值]
	 */
observers:false,

	/**
	 * 方法 获取触发事件的对象
	 */
	element:function (event){
		return event.target||event.srcElement;
	},

	/**
	 * 方法 判断是否单击鼠标左键
	 */
	isLeftClick:function (event){
		return (((event.which)&&(event.which==1))||((event.button)&&(event.button==1)));
	},

	/**
	 * 方法 获取事件触发时鼠标相对屏幕左上角的x坐标
	 */
	pointerX:function (event){
		return event.pageX||(event.clientX+(document.documentElement.scrollLeft||document.body.scrollLeft));
	},

	/**
	 * 方法 获取事件触发时鼠标相对屏幕左上角的y坐标
	 */
	pointerY:function (event){
		return event.pageY||(event.clientY+(document.documentElement.scrollTop||document.body.scrollTop));
	},

	/**
	 * 方法 停止事件的传递
	 */
	stop: function(event) {
		if(event.preventDefault){
			event.preventDefault();
			event.stopPropagation();
		}else {
			event.returnValue=false;
			event.cancelBubble=true;
		};
	},

	/**
	 * 方法 找到事件元素的父级元素中，最接近事件元素且等同于指定标签名的父元素。
	 * 如果到达顶级元素(HTML)，那么就返回顶级元素
	 */
	findElement:function (event,tagName){
		var element=Event.element(event);
		while(element.parentNode&&(!element.tagName||(element.tagName.toUpperCase()!=tagName.toUpperCase())))
			element=element.parentNode;
		return element;
	},

	/**
	 * 私有方法 被observe调用
	 */
	_observeAndCache:function (element,name,observer,useCapture){
		if(!this.observers)this.observers=[];
		if(element.addEventListener){
			this.observers.push([element,name,observer,useCapture]);
			element.addEventListener(name,observer,useCapture);
		}else if(element.attachEvent){
			this.observers.push([element,name,observer,useCapture]);
			element.attachEvent('on'+name,observer);
		};
	},

	/**
	 * 方法 删除所有通过Evert.observer绑定的事件
	 */
	unloadCache:function (){
		if(!Event.observers)return ;
		for(var i=0;i<Event.observers.length;i++){
			/* 使用apply方式 */
			Event.stopObserving.apply(this,Event.observers[i]);
			Event.observers[i][0]=null;
		};
		Event.observers=false;
	},

	/**
	 * 方法 注册对象的事件处理，并记录到cache中。
	 * element是触发事件的节点对象；name是事件名称；observer是事件处理程序；useCapture表示是否采用捕获模式。
	 */
	observe:function (element,name,observer,useCapture){
		var element=G(element);
		useCapture=useCapture||false;
		if(name=='keypress'&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||element.attachEvent))
			name='keydown';
		this._observeAndCache(element,name,observer,useCapture);
	},

	/**
	 * 方法 取消对象已注册的事件处理。
	 * 参数同上
	 */
	stopObserving:function (element,name,observer,useCapture){
		var element=G(element);
		useCapture=useCapture||false;
		if(name=='keypress'&&(navigator.appVersion.match(/Konqueror|Safari|KHTML/)||element.detachEvent))
			name='keydown';
		if(element.removeEventListener){
			element.removeEventListener(name,observer,useCapture);
		}else if(element.detachEvent){
			element.detachEvent('on'+name,observer);
		};
	}
});

/**
 * 页面onload 的时候取消所有事件注册，避免ie内存泄漏的bug
 */
Event.observe(window,'unload',Event.unloadCache,false);

/***********************/
/*        Class        */
/***********************/
var Class=function (){
	var _class=function (){
		this.initialize.apply(this,arguments);
	};
	for(i=0;i<arguments.length;i++){
		superClass=arguments[i];
		for(member in superClass.prototype){
			_class.prototype[member]=superClass.prototype[member];
		};
	};
	_class.child=function (){
		return new Class(this);
	};
	_class.extend=function (f){
		for(property in f){
			_class.prototype[property]=f[property];
		};
	};

	return _class;
};

function space(flag){
	if(flag=="begin"){
		var ele=document.getElementById("ft");
		if(typeof(ele)!="undefined"&&ele!=null)ele.id="ft_popup";
		ele=document.getElementById("usrbar");
		if(typeof(ele)!="undefined"&&ele!=null)
			ele.id="usrbar_popup";
	}else if(flag=="end"){
		var ele=document.getElementById("ft_popup");
		if(typeof(ele)!="undefined"&&ele!=null)
			ele.id="ft";
		ele=document.getElementById("usrbar_popup");
		if(typeof(ele)!="undefined"&&ele!=null)
			ele.id="usrbar";
	};
};

var Popup=new Class();
Popup.prototype={
	iframeIdName:'ifr_popup',
	initialize:function (config){
		this.config=Object.extend({
			/*决定弹出框中显示的内容是一个url指向页面或一段html代码（1:url - 2:html code - 3:confirm）*/
			contentType:1,
			/*是否显示title*/
			isHaveTitle:true,
			/*是否有滚动条*/
			scrollType:'no',
			/*背景是否可点击，不可点击会自动变灰*/
			isBackgroundCanClick:false,
			/*是否支持拖动*/
			isSupportDraging:true,
			/*是否显示阴影*/
			isShowShadow:true,
			/*关闭弹出框时是否刷新父页面*/
			isReloadOnClose:true,
			width:400,
			height:300
		},config||{});

		this.info={
			shadowWidth:4,
			title:"",
			contentUrl:"",
			contentHtml:"",
			callBack:null,
			parameter:null,
			confirmCon:"",
			alertCon:"",
			someHiddenTag:"select,object,embed",
			someDisabledBtn:"",
			someHiddenEle:"",
			overlay:0,
			coverOpacity:60
		};
		this.color={
			/*遮罩层颜色*/
			cColor:"#000000",
			/*背景颜色*/
			bColor:"#FFFFFF",
			/*边框及title颜色*/
			tColor:"#709CD2",
			/*title文字颜色*/
			wColor:"#FFFFFF"
		};
		this.dropClass=null;
/*
		this.config.contentType=this.ini(config,"contentType");
		this.config.isHaveTitle=this.ini(config,"isHaveTitle");
		this.config.scrollType=this.ini(config,"scrollType");
		this.config.isBackgroundCanClick=this.ini(config,"isBackgroundCanClick");
		this.config.isSupportDraging=this.ini(config,"isSupportDraging");
		this.config.isShowShadow=this.ini(config,"isShowShadow");
		this.config.isReloadOnClose=this.ini(config,"isReloadOnClose");
*/
		//this.config.width=this.ini(config,"width");
		//this.config.height=this.ini(config,"height");

		this.someToHidden=[];
		this.someToDisabled=[];
		if(!this.config.isHaveTitle)
			this.config.isSupportDraging=false;

		this.iniBuild();
	},
	/*
	ini:function(a,b)
	{
		if(a[b]!=null && typeof(a[b])!="undefined")
			return a[b];
		return this.config[b];
	},
	*/
	setContent:function (arrt,val){
		if(val!=''){
			switch(arrt){
				case 'width':
					this.config.width=val;
					break;
				case 'height':
					this.config.height=val;
					break;
				case 'title':
					this.info.title=val;
					break;
				case 'contentUrl':
					this.info.contentUrl=val;
					break;
				case 'contentHtml':
					this.info.contentHtml=val;
					break;
				case 'callBack':
					this.info.callBack=val;
					break;
				case 'parameter':
					this.info.parameter=val;
					break;
				case 'confirmCon':
					this.info.confirmCon=val;
					break;
				case 'alertCon':
					this.info.alertCon=val;
					break;
				case 'someHiddenTag':
					this.info.someHiddenTag=val;
					break;
				case 'someHiddenEle':
					this.info.someHiddenEle=val;
					break;
				case 'someDisabledBtn':
					this.info.someDisabledBtn=val;
					break;
				case 'overlay':
					this.info.overlay=val;

			};
		};
	},
	iniBuild:function (){
		G('dialogCase')?G('dialogCase').parentNode.removeChild(G('dialogCase')):function (){};
		var oDiv=document.createElement('span');
		oDiv.id='dialogCase';
		document.body.appendChild(oDiv);
	},
	build:function (){
		//用于支持层上层
		var baseZIndex=10001+this.info.overlay*10;
		var showZIndex=baseZIndex+2;
		this.iframeIdName='ifr_popup'+this.info.overlay;

		//弹出框小logo保存路径
		var path="./image/";

		//关闭按钮
		var close='<input id="dialogBoxClose" type="button" name="Submit" value="X"  style="border:0; background:#D0F0FF; width:16px; height:16px;"/>';

		// 用于遮罩主页面，使其不可点击并产生昏暗效果
		var cB='filter: alpha(opacity='+this.info.coverOpacity+');opacity:'+this.info.coverOpacity/100+';';
		var cover='<div id="dialogBoxBG" style="position:absolute;top:0px;left:0px;width:100%;height:100%;z-index:'+baseZIndex+';'+cB+'background-color:'+this.color.cColor+';display:none;"></div>';
		var mainBox='<div id="dialogBox" style="border:1px solid '+this.color.tColor+';display:none;z-index:'+showZIndex+';position:relative;width:'+this.config.width+'px;"><table width="100%"  border="0" cellpadding="0" cellspacing="0" bgcolor="'+this.color.bColor+'">';
		if(this.config.isHaveTitle){
			mainBox+='<tr height="24" bgcolor="'+this.color.tColor+'"><td><table style="-moz-user-select:none;height:24px;" width="100%" border="0" cellpadding="0" cellspacing="0" ><tr>'+
				'<td width="6" height="24"></td><td id="dialogBoxTitle" style="color:'+this.color.wColor+';font-size:14px;font-weight:bold;">'+this.info.title+'&nbsp;</td>'+
				'<td id="dialogClose" width="20" align="right" valign="middle">'+close+'</td><td width="6"></td></tr></table></td></tr>';
		}else {
			mainBox+='<tr height="10"><td align="right">'+close+'</td></tr>';
		};
		mainBox+='<tr style="height:'+this.config.height+'px" valign="top"><td id="dialogBody" style="position:relative;"></td></tr></table></div>'+
			'<div id="dialogBoxShadow" style="display:none;z-index:'+baseZIndex+';"></div>';
		if(!this.config.isBackgroundCanClick){
			G('dialogCase').innerHTML=cover+mainBox;
			var _scrollHeight = Math.max(document.body.scrollHeight,document.documentElement.scrollHeight);
			G('dialogBoxBG').style.height=_scrollHeight+"px";
		}else
			G('dialogCase').innerHTML=mainBox;
			

		//绑定关闭事件
		Event.observe(G('dialogBoxClose'),"click",this.reset.bindAsEventListener(this),false);
		if(this.config.isSupportDraging){
			dropClass=new Dragdrop(this.config.width,this.config.height,this.info.shadowWidth,this.config.isSupportDraging,this.config.contentType);
			G("dialogBoxTitle").style.cursor="move";
		};
		this.lastBuild();
	},
	lastBuild:function (){
		//简单的确定取消按钮
		var confirm = '<div style="width:100%;height:100%;text-align:center;"><div style="margin:20px 20px 0 20px;font-size:14px;line-height:16px;color:#000000;">'+this.info.confirmCon+'</div><div style="margin:20px;"><input id="dialogOk" type="button" value="  确定  "/>&nbsp;<input id="dialogCancel" type="button" value="  取消  "/></div></div>';var alert='<div style="width:100%;height:100%;text-align:center;"><div style="margin:20px 20px 0 20px;font-size:14px;line-height:16px;color:#000000;">'+this.info.alertCon+'</div><div style="margin:20px;"><input id="dialogYES" type="button" value="  确定  "/></div></div>';

		//用于支持层上层
		var baseZIndex=10001+this.info.overlay*10;
		var coverIfZIndex=baseZIndex+4;
		if(this.config.contentType==1){
			//使用iframe打开新的页面,iframeBG用于拖动时遮罩iframe中内容
			var openIframe="<iframe width='100%' style='height:"+this.config.height+"px' name='"+this.iframeIdName+"' id='"+this.iframeIdName+"' src='"+this.info.contentUrl+"' frameborder='0' scrolling='"+this.config.scrollType+"'></iframe>";
			var coverIframe="<div id='iframeBG' style='position:absolute;top:0px;left:0px;width:1px;height:1px;z-index:"+coverIfZIndex+";filter: alpha(opacity=00);opacity:0.00;background-color:#ffffff;'><div>";
			G("dialogBody").innerHTML=openIframe+coverIframe;
		}else if(this.config.contentType==2){
			G("dialogBody").innerHTML=this.info.contentHtml;
		}else if(this.config.contentType==3){
			G("dialogBody").innerHTML=confirm;
			Event.observe(G('dialogOk'),"click",this.forCallback.bindAsEventListener(this),false);
			Event.observe(G('dialogCancel'),"click",this.close.bindAsEventListener(this),false);
		}else if(this.config.contentType==4){
			G("dialogBody").innerHTML=alert;
			Event.observe(G('dialogYES'),"click",this.close.bindAsEventListener(this),false);
		};
	},
	reBuild:function (){
		G('dialogBody').height=G('dialogBody').clientHeight;
		this.lastBuild();
	},
	show:function (){
		this.hiddenSome();
		this.middle();
		if(this.config.isShowShadow)
			this.shadow();
	},
	forCallback:function (){
		return this.info.callBack(this.info.parameter);
	},

	// 用于产生阴影
	shadow:function (){
		var oShadow=G('dialogBoxShadow');
		var oDialog=G('dialogBox');
		oShadow['style']['position']="absolute";
		oShadow['style']['background']="#000";
		oShadow['style']['display']="";
		oShadow['style']['opacity']="0.2";
		oShadow['style']['filter']="alpha(opacity=20)";
		oShadow['style']['top']=oDialog.offsetTop+this.info.shadowWidth;
		oShadow['style']['left']=oDialog.offsetLeft+this.info.shadowWidth;
		oShadow['style']['width']=oDialog.offsetWidth;
		oShadow['style']['height']=oDialog.offsetHeight;
	},

	// 居中显示
	middle:function (){
		if(!this.config.isBackgroundCanClick)
			G('dialogBoxBG').style.display='';
		var oDialog=G('dialogBox');
		oDialog['style']['position']="absolute";
		oDialog['style']['display']='';
		var sClientWidth=document.body.clientWidth;
		var sClientHeight=document.body.clientHeight;
		var sScrollTop=document.body.scrollTop;
		var sleft=(document.body.clientWidth/2)-(oDialog.offsetWidth/2);
		var iTop=-80+(sClientHeight/2+sScrollTop)-(oDialog.offsetHeight/2);
		var sTop=iTop>0?iTop:(sClientHeight/2+sScrollTop)-(oDialog.offsetHeight/2);
		if(sTop<1)sTop="20";
		if(sleft<1)sleft="20";
		oDialog['style']['left']=sleft;
		oDialog['style']['top']=sTop;
	},

	// 关闭弹出框且父页面刷新
	reset:function (){
		if(this.config.isReloadOnClose){
			//top.location.reload();
			window.location.reload();
		};
		this.close();
	},

	// 关闭弹出框
	close:function (){
		G('dialogBox').style.display='none';
		if(!this.config.isBackgroundCanClick)
			G('dialogBoxBG').style.display='none';
		if(this.config.isShowShadow)
			G('dialogBoxShadow').style.display='none';
		G('dialogBody').innerHTML='';
		this.showSome();
	},

	// 隐藏某些页面对象，如select/object/copyright
	hiddenSome:function (){

		var tag=this.info.someHiddenTag.split(",");
		if(tag.length==1&&tag[0]=="")tag.length=0;
		for(var i=0;i<tag.length;i++){
			this.hiddenTag(tag[i]);
		};
		var ids=this.info.someHiddenEle.split(",");
		if(ids.length==1&&ids[0]=="")ids.length=0;
		for(var i=0;i<ids.length;i++){
			this.hiddenEle(ids[i]);
		};
		var ids=this.info.someDisabledBtn.split(",");
		if(ids.length==1&&ids[0]=="")ids.length=0;
		for(var i=0;i<ids.length;i++){
			this.disabledBtn(ids[i]);
		};
		space("begin");
	},

	// 禁用所有提交button
	disabledBtn:function (id){
		var ele=document.getElementById(id);
		if(typeof(ele)!="undefined"&&ele!=null&&ele.disabled==false){
			ele.disabled=true;
			this.someToDisabled.push(ele);
		}
	},

	// 隐藏select/object/embed
	hiddenTag:function (tagName){
		var ele=document.getElementsByTagName(tagName);
		if(ele!=null){
			for(var i=0;i<ele.length;i++){
				if(ele[i].style.display!="none"&&ele[i].style.visibility!='hidden'){
					ele[i].style.visibility='hidden';
					this.someToHidden.push(ele[i]);
				};
			};
		};
	},

	// 隐藏直接由id指定的页面元素
	hiddenEle:function (id){
		var ele=document.getElementById(id);
		if(typeof(ele)!="undefined"&&ele!=null){
			ele.style.visibility='hidden';
			this.someToHidden.push(ele);
		}
	},

	// 显示被隐藏的页面元素 和 被禁用的提交按钮
	showSome:function (){
		for(var i=0;i<this.someToHidden.length;i++){
			this.someToHidden[i].style.visibility='visible';
		};
		for(var i=0;i<this.someToDisabled.length;i++){
			this.someToDisabled[i].disabled=false;
		};
		space("end");
	}
};

var Dragdrop=new Class();
Dragdrop.prototype={
	// 初始化拖动
	initialize:function (width,height,shadowWidth,showShadow,contentType){
		this.dragData=null;
		this.dragDataIn=null;
		this.backData=null;
		this.width=width;
		this.height=height;
		this.shadowWidth=shadowWidth;
		this.showShadow=showShadow;
		this.contentType=contentType;
		this.IsDraging=false;
		this.oObj=G('dialogBox');
		Event.observe(G('dialogBoxTitle'),"mousedown",this.moveStart.bindAsEventListener(this),false);
	},
	// 处理拖动
	moveStart:function (event){
		this.IsDraging=true;
		if(this.contentType==1){
			G("iframeBG").style.display="";
			G("iframeBG").style.width=this.width;
			G("iframeBG").style.height=this.height;
		};
		Event.observe(document,"mousemove",this.mousemove.bindAsEventListener(this),false);
		Event.observe(document,"mouseup",this.mouseup.bindAsEventListener(this),false);
		Event.observe(document,"selectstart",this.returnFalse,false);
		this.dragData={x:Event.pointerX(event),y:Event.pointerY(event)};
		this.backData={x:parseInt(this.oObj.style.left),y:parseInt(this.oObj.style.top)};
	},
	mousemove:function (event){
		if(!this.IsDraging)return ;

		var iLeft=Event.pointerX(event)-this.dragData["x"]+parseInt(this.oObj.style.left);
		var iTop=Event.pointerY(event)-this.dragData["y"]+parseInt(this.oObj.style.top);
		if(this.dragData["y"]<parseInt(this.oObj.style.top))
			iTop=iTop-12;
		else if(this.dragData["y"]>parseInt(this.oObj.style.top)+25)
			iTop=iTop+12;

		this.oObj.style.left=iLeft;
		this.oObj.style.top=iTop;
		if(this.showShadow){
			G('dialogBoxShadow').style.left=iLeft+this.shadowWidth;
			G('dialogBoxShadow').style.top=iTop+this.shadowWidth;
		};
		this.dragData={x:Event.pointerX(event),y:Event.pointerY(event)};
		document.body.style.cursor="move";
	},
	mouseup:function (event){
		if(!this.IsDraging)return ;
		if(this.contentType==1)
			G("iframeBG").style.display="none";
		document.onmousemove=null;
		document.onmouseup=null;
		var mousX=Event.pointerX(event)-(document.documentElement.scrollLeft||document.body.scrollLeft);
		var mousY=Event.pointerY(event)-(document.documentElement.scrollTop||document.body.scrollTop);
		if(mousX<1||mousY<1||mousX>document.body.clientWidth||mousY>document.body.clientHeight){
			this.oObj.style.left=this.backData["x"];
			this.oObj.style.top=this.backData["y"];
			if(this.showShadow){
				G('dialogBoxShadow').style.left=this.backData.x+this.shadowWidth;
				G('dialogBoxShadow').style.top=this.backData.y+this.shadowWidth;
			};
		};
		this.IsDraging=false;
		document.body.style.cursor="";
		Event.stopObserving(document,"selectstart",this.returnFalse,false);
	},
	returnFalse:function (){
		return false;
	}
};