JavaScript 拖拽翻页效果代码

时间:2020-05-12 人气:0

<html> 
<head> 
<title>拖拽翻页效果JavaScript特效-demo by https://m.qb5200.com/www.qb5200.com</title> 
<style type="text/css"> 
html,body{ 
    width:100%; 
    height:100%; 
    border:0px; 
    margin:0px; 
    overflow:hidden; 
} 
#menu{ 
    width:1000px; 
    height:500px; 
    overflow:hidden; 
    background:lightblue; 
} 
.page{ 
    position:absolute; 
    width:300px; 
    height:400px; 
    left:350px; 
    top:50px; 
    background:#FFF; 
    border:1px solid #999; 
} 
ul{ 
    list-style:none; 
    height:320px; 
    margin:20px; 
    padding:0px; 
    background:#EEE; 
} 
li{ 
     
    font-size:12px; 
    height:20px; 
    line-height:20px; 
    border-bottom:1px dashed #999; 
} 
li span{ 
    float:right; 
} 
li a{ 
    color:#000; 
    text-decoration:none; 
} 
li a:hover{ 
    text-decoration:underline; 
} 
.tip{ 
    display:block; 
    height:20px; 
    margin:0px 20px; 
    line-height:20px; 
    text-align:center; 
    font-size:12px; 
    background:#999; 
} 
</style> 
</head> 
<body> 
<script type="text/javascript"> 
function id(obj){ 
    return document.getElementById(obj); 
} 
var page; 
var mx; 
var md=false; 
var sh=0; 
var en=false; 
window.onload=function(){ 
    page=id("menu").getElementsByTagName("div"); 
    if(page.length>0){ 
        page[0].style.zIndex=2; 
    } 
    for(i=0;i<page.length;i++){ 
        page[i].innerHTML+="<span class=\"tip\">"+(i+1)+"/"+page.length+"页 拖拽翻页</span>"; 
        page[i].id="page"+i; 
        page[i].i=i; 
        page[i].onmousedown=function(e){ 
            if(!en){ 
                if(!e){e=e||window.event;} 
                ex=e.pageX?e.pageX:e.x; 
                mx=350-ex; 
                this.style.cursor="move"; 
                md=true; 
                if(document.all){ 
                    this.setCapture(); 
                }else{ 
                    window.captureEvents(Event.MOUSEMOVE|Event.MOUSEUP); 
                } 
            } 
        } 
        page[i].onmousemove=function(e){ 
            if(md){ 
                en=true; 
                if(!e){e=e||window.event;} 
                ex=e.pageX?e.pageX:e.x; 
                this.style.left=ex+mx+"px"; 
                if(this.offsetLeft<350){ 
                    var cu=(this.i==0)?page.length-1:this.i-1; 
                    page[sh].style.zIndex=0; 
                    page[cu].style.zIndex=1; 
                    this.style.zIndex=2; 
                    sh=cu; 
                } 
                if(this.offsetLeft>350){ 
                    var cu=(this.i==page.length-1)?0:this.i+1; 
                    page[sh].style.zIndex=0; 
                    page[cu].style.zIndex=1; 
                    this.style.zIndex=2; 
                    sh=cu; 
                } 
            } 
        } 
        page[i].onmouseup=function(){ 
            this.style.cursor="default"; 
            md=false; 
            if(this.offsetLeft==350){ 
                en=false; 
            } 
            if(document.all){ 
                this.releaseCapture(); 
            }else{ 
                window.releaseEvents(Event.MOUSEMOVE|Event.MOUSEUP); 
            } 
            flyout(this); 
        } 
    } 
} 
function flyout(obj){ 
    if(obj.offsetLeft < 350){ 
        if( (obj.offsetLeft - 10) > 50 ){ 
            obj.style.left=obj.offsetLeft - 10 + "px"; 
            window.setTimeout("flyout(id('"+obj.id+"'));",0); 
        }else{ 
            obj.style.left= 50 +"px"; 
            obj.style.zIndex=0; 
            flyin(id(obj.id)); 
        } 
    } 
    if(obj.offsetLeft > 350){ 
        if((obj.offsetLeft + 10) < 650){ 
            obj.style.left=obj.offsetLeft + 10 + "px"; 
            window.setTimeout("flyout(id('"+obj.id+"'));",0); 
        }else{ 
            obj.style.left= 650 + "px"; 
            obj.style.zIndex=0; 
            flyin(id(obj.id)); 
        } 
    } 
} 
function flyin(obj){ 
    if(obj.offsetLeft<350){ 
        if((obj.offsetLeft + 10) < 350){ 
            obj.style.left=obj.offsetLeft + 10+"px"; 
            window.setTimeout("flyin(id('"+obj.id+"'));",0); 
        }else{ 
            obj.style.left= 350 +"px"; 
            en=false; 
        } 
    } 
    if(obj.offsetLeft>350){ 
        if((obj.offsetLeft - 10) > 350){ 
            obj.style.left=obj.offsetLeft - 10 +"px"; 
            window.setTimeout("flyin(id('"+obj.id+"'));",0); 
        }else{ 
            obj.style.left=350+"px"; 
            en=false; 
        } 
    } 
} 
</script> 
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