popup.js [转]

/**//*********************************************** popup.js**************************************************/


//为数组Array添加一个push方法
//为数组的末尾加入一个对象
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;
        }
};

//对G函数的参数进行处理
function G()
{
       //定义一个数组用来保存参数
       var elements=new Array();
       //循环分析G中参数的内容
       for(var i=0;i<arguments.length;i++)
       {
var element=arguments[i];

//如果参数的类型为string，则获得以这个参数为ID的对象
if(typeof element=='string')
{
        element=document.getElementById(element);
}
//如果参数的长度为1
if(arguments.length==1)
{
        return element;
}
//将对象加入到数组的末尾
elements.push(element);
       };
       return elements;
};

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

//绑定事件
Function.prototype.bindAsEventListener=function (object)
{
       var __method=this;
       return function (event){__method.call(object,event||window.event);};
};


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


if(!window.Event)
{
       var Event=new Object();
};

Object.extend(
       Event,

       {
observers:false,
element:function (event)
{
        return event.target||event.srcElement;
},

isLeftClick:function (event)
{
        return (((event.which)&&(event.which==1))||((event.button)&&(event.button==1)));
},

pointerX:function (event)
{
        return event.pageX||(event.clientX+(document.documentElement.scrollLeft||document.body.scrollLeft));
},

pointerY:function (event)
{
        return event.pageY||(event.clientY+(document.documentElement.scrollTop||document.body.scrollTop));
},

stop:function (event)
{
        if(event.preventDefault)
        {
     event.preventDefault();
     event.stopPropagation();
        }
        else
        {
     event.returnValue=false;
     event.cancelBubble=true;
        };
},

findElement:function (event,tagName)
{
        var element=Event.element(event);
        while(element.parentNode&&(!element.tagName||(element.tagName.toUpperCase()!=tagName.toUpperCase())))
     element=element.parentNode;
        return element;
},

_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);
        };
},

unloadCache:function ()
{
        if(!Event.observers)
     return;
        for(var i=0;i<Event.observers.length;i++)
        {
     Event.stopObserving.apply(this,Event.observers[i]);
     Event.observers[i][0]=null;
        };
        Event.observers=false;
},

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);
},

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);
        };
}
       }
);

Event.observe(window,'unload',Event.unloadCache,false);


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;
};


//改变百度空间的最顶端和最低端的div的id值
//如果flag为begin，则为弹出状态的id值
//如果flag为end，则为非弹出状态的id值，即原本的id值
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";
        };
};


//**************************************************Popup类弹出窗口***************************************************************


var Popup=new Class();

Popup.prototype={
//弹出窗口中框架的name名称
iframeIdName:'ifr_popup',

initialize:function (config)
{
        //---------------弹出对话框的配置信息------------------
        //contentType:设置内容区域为什么类型：1为另外一个html文件 | 2为自定义html字符串 | 3为confirm对话框 | 4为alert警告对话框
        //isHaveTitle:是否显示标题栏
        //scrollType：设置或获取对话框中的框架是否可被滚动
        //isBackgroundCanClick：弹出对话框后，是否允许蒙布后的所有元素被点击。也就是如果为false的话，就会有全屏蒙布，如果为true的话，就会去掉全屏蒙布
        //isSupportDraging：是否支持拖拽
        //isShowShadow：是否现实阴影
        //isReloadOnClose：是否刷新页面，并关闭对话框
        //width：宽度
        //height：高度
        this.config=Object.extend({contentType:1,isHaveTitle:true,scrollType:'yes',isBackgroundCanClick:false,isSupportDraging:true,isShowShadow:true,isReloadOnClose:true,width:400,height:300},config||{});

        //----------------对话框的参数值信息------------------------
        //shadowWidth     ：阴影的宽度
        //contentUrl      ：html链接页面
        //contentHtml     ：html内容
        //callBack       ：回调的函数名
        //parameter       ：回调的函数名中传的参数
        //confirmCon      ：对话框内容
        //alertCon       ：警告框内容
        //someHiddenTag：页面中需要隐藏的元素列表，以逗号分割
        //someHiddenEle：需要隐藏的元素的ID列表(和someToHidden的区别是：someHiddenEle是通过getElementById，而someToHidden是通过getElementByTagName，里面放的是对象)
        //overlay       ：
        //coverOpacity ：蒙布的透明值
        this.info={shadowWidth:4,title:"",contentUrl:"",contentHtml:"",callBack:null,parameter:null,confirmCon:"",alertCon:"",someHiddenTag:"select,object,embed",someHiddenEle:"",overlay:0,coverOpacity:40};

        //设置颜色cColor:蒙布的背景, bColor:内容区域的背景, tColor:标题栏和边框的颜色,wColor:字体的背景色
        this.color={cColor:"#EEEEEE",bColor:"#FFFFFF",tColor:"#709CD2",wColor:"#FFFFFF"};

        this.dropClass=null;

        //用来放置隐藏了的对象列表，在hiddenTag方法中第一次调用
        this.someToHidden=[];

        //如果没有标题栏则不支持拖拽
        if(!this.config.isHaveTitle)
        {
     this.config.isSupportDraging=false;
        }
        //初始化
        this.iniBuild();
},

//设置配置信息和参数内容
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 '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 ()
{
        //设置全屏蒙布的z-index
        var baseZIndex=10001+this.info.overlay*10;
        //设置蒙布上的弹出窗口的z-index(比蒙布的z-index高2个值)
        var showZIndex=baseZIndex+2;

        //定义框架名称
        this.iframeIdName='ifr_popup'+this.info.overlay;

        //设置图片的主路径
        var path="http://img.baidu.com/hi/img/";

        //关闭按钮
        var close='<input type="image" id="dialogBoxClose" src="'+path+'dialogclose.gif" border="0" width="16" height="16" align="absmiddle" title="关闭"/>';

        //使用滤镜设置对象的透明度
        var cB='filter: alpha(opacity='+this.info.coverOpacity+');opacity:'+this.info.coverOpacity/100+';';

        //设置全屏的蒙布
        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>';

        //设置弹出的主窗口设置
        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+'">';

        //设置窗口标题栏
        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>';
        };

        //设置窗口主内容区域
        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>';

        //如果有蒙布
        if(!this.config.isBackgroundCanClick)
        {
     G('dialogCase').innerHTML=cover+mainBox;
     G('dialogBoxBG').style.height=document.body.scrollHeight;
        }
        else
        {
     G('dialogCase').innerHTML=mainBox;
        }

        Event.observe(G('dialogBoxClose'),"click",this.reset.bindAsEventListener(this),false);

        //如果支持拖动,则设置拖动处理
        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 ()
{
        //设置confim对话框的具体内容
        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>';
        //设置alert对话框的具体内容
        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>';

        var baseZIndex=10001+this.info.overlay*10;
        var coverIfZIndex=baseZIndex+4;

        //判断内容类型决定窗口的主内容区域应该显示什么
        if(this.config.contentType==1)
        {
     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);
        };
},

//重新加载弹出窗口的高度和内容
reBuild:function ()
{
        G('dialogBody').height=G('dialogBody').clientHeight;
        this.lastBuild();
},

show:function ()
{
        //隐藏一些在info中制定的元素
        this.hiddenSome();
        //弹出窗口居中
        this.middle();
        //设置阴影
        if(this.config.isShowShadow)
     this.shadow();
},

//设置回调函数
forCallback:function ()
{
        return this.info.callBack(this.info.parameter);
},

//为弹出窗口设置阴影
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;
},

//让弹出窗口居中显示
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;
        //alert("document.body.clientWidth = " + sClientWidth + "\ndocument.body.clientHeight" +sClientHeight);
        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);
        //alert("var iTop=-80+(sClientHeight/2+sScrollTop)-(oDialog.offsetHeight/2);\n" + "sClientHeight is " + sClientHeight + "\nsScrollTop is " + sScrollTop);
        //alert("iTop is " + iTop);
        if(sTop<1)
     sTop="20";
        if(sleft<1)
     sleft="20";
        oDialog['style']['left']=sleft;
        oDialog['style']['top']=sTop;
        //alert("sleft is " + sleft);
        //alert("sTop is " + sTop);
},

//刷新页面，并关闭当前弹出窗口
reset:function ()
{
        if(this.config.isReloadOnClose)
        {
     top.location.reload();
        };
        this.close();
},

//关闭当前弹出窗口
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someHiddenTag和someHiddenEle中的所有元素
hiddenSome:function ()
{
        //隐藏someHiddenTag中的所有元素
        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]);
        };
        //隐藏someHiddenEle中的所有逗号分割的ID的元素
        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]);
        };
        //改变顶部和底部的div的id值为弹出状态的id值,祥见space的实现
        space("begin");
},

//隐藏一组元素
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]);
         };
     };
         };
     },

     //隐藏单个元素
     hiddenEle:function (id)
     {
        var ele=document.getElementById(id);
        if(typeof(ele)!="undefined"&&ele!=null)
        {
     ele.style.visibility='hidden';
     this.someToHidden.push(ele);
        }
     },

     //将someToHidden中保存的隐藏元素全部显示
     //并恢复顶部和底部的div为原来的id值
     showSome:function ()
     {
        for(var i=0;i<this.someToHidden.length;i++)
        {
     this.someToHidden[i].style.visibility='visible';
        };
        space("end");
     }
        };



//********************************************************Dragdrop类(拖拽动作)************************************************************

var Dragdrop=new Class();

Dragdrop.prototype={
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);
},

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;
}
       };