百度空间的popup效果分析_javascript技巧

";
 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 {
 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 {
 this.hiddenEle(ids[i]);
 };
 //改变顶部和底部的p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 {
 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p为原来的id值
 showSome:function ()
 {
 for(var i=0;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"] 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;
 }
 };

将上面对popup.js文件做个引用，下面是对这个js文件进行测试的html页面的代码。你可以回去很方便的测试。
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="PopUpTest.aspx.cs" Inherits="PopUpTest" %>




 

 

 

 function ShowIframe()
 {
 var pop=new Popup({ contentType:1,isReloadOnClose:false,width:400,height:500});
 pop.setContent("contentUrl","Default.aspx");
 pop.setContent("title","iframe框架示例");
 pop.build();
 pop.show();
 }
 function ShowHtmlString()
 {
 var strHtml = "dsdadsdadasdasddadasddsadads";
 var pop=new Popup({ contentType:2,isReloadOnClose:false,width:340,height:300});
 pop.setContent("contentHtml",strHtml);
 pop.setContent("title","html字符串示例");
 pop.build();
 pop.show();
 }
 function ShowConfirm()
 {
 var pop=new Popup({ contentType:3,isReloadOnClose:false,width:340,height:80});
 pop.setContent("title","confirm对话框示例");
 pop.setContent("confirmCon","confirm对话框的内容");
 pop.setContent("callBack",ShowCallBack);
 pop.setContent("parameter",{id:"pCall",str:"点击确定后显示的字符串",obj:pop});
 pop.build();
 pop.show();
 }
 function ShowAlert()
 {
 var pop=new Popup({ contentType:4,isReloadOnClose:false,width:340,height:80});
 pop.setContent("title","alert警告框示例");
 pop.setContent("alertCon","alert对话框的内容");
 pop.build();
 pop.show();
 }

 
 function ShowCallBack(para)
 {
 var o_pop = para["obj"]
 var obj = document.getElementById(para["id"]);
 o_pop.close();
 obj.innerText = para["str"];

 }