JavaScript實現圖片輪播

lsch9594 8年前發布 | 10K 次閱讀 JavaScript

test2.html   

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>無標題文檔</title>
<script src="http://lib.sinaapp.com/js/jquery/1.9.1/jquery-1.9.1.min.js"></script>

<style>

.img-div img{display:none;}

</style>
</head>

<body>

<div class="slide" id="slide">
<div class="img-div">
    <img src="model.jpg" />
    <img src="model2.jpg" />
    <img src="model.jpg" />
    <img src="model2.jpg" />
    <img src="model.jpg" />
</div>

<div class="slide-btn">
<a  href="#" class="hover">1</a>
<a  href="#" class="hover">2</a>
<a  href="#" class="hover">3</a>
<a  href="#" class="hover">4</a>
<a  href="#" class="hover">5</a>
</div>

</div>

<script type="text/javascript">


var zBase=
{
    $id:function(id){return document.getElementById(id);},
    $tagName:function(tagName,obj){return ((obj?obj:document).getElementsByTagName(tagName));},
    $c:function(clsN,obj)
    {
        var tag=this.$tagName('*'),reg=new  RegExp('(^|\\s)'+clsN+'(\\s|$)'),arr=[];

        for(var i=0;i<tag.length;i++)
        {
            if(reg.test(tag[i].className))
            {
                arr.push(tag[i]);   
            }   
        }
        return arr;

    },

    $add:function(obj,clsN)
    {
        var reg=new  RegExp('(^|\\s)'+clsN+'(\\s|$)');

        if(!reg.test(obj.className))
        {
            obj.className+=' '+clsN;    
        }   
    },

    $remove:function(obj,clsN)
    {
        var  cla=obj.className;
        var reg='/|\\s*'+clsN+'\\b/g';
        obj.className=cla?cla.replace(eval(reg),''):''; 
    },

    css:function(obj,attr,value)
    {
        if(value)
        {
            obj.style[attr]=value;  
        }   
        else
        {
            return  typeof  window.getComputedStyle!="undefined"?window.getComputedStyle(obj,null)[attr]:obj.currentStyle[attr];    
        }
    },
    easing:
        {
            liner:function(t,b,c,d){return c*t/d+b},
            easeOut:function(t,b,c,d){return  -c*((t=t/d-1)*t*t*t-1)+b}
        },

        config:
        {
            index:0,
            auto:true,
            direct:'left'   
        },

        init:function()
        {
            this.slide=this.$id('slide');
            this.img_div=this.$c('img-div')[0];
            this.slide_btn=this.$tagName('a',this.$c('slide-btn')[0]);
            this.img_arr=this.$tagName('img',this.img_div);



            if(this.config.auto){this.play();}
            this.hover();

        },

        animate:function(obj,attr,val)
        {
            var d=1000;

            if(obj[attr+"timer"]){clearInterval(obj[attr+"timer"])};

            var start= parseInt(zBase.css(obj,attr));
            var space=val-start,st=(new Date().getTime()),m=space>0?'cell':'floor';

            obj[attr+'timer']=setInterval(function(){
                var t=(new Date().getTime()-st);
                if(t<d)
                {

                    zBase.css(obj,attr,Math[m](zBase.easing["easeOut"](t,start,space,d))+"px");
                }
                else
                {
                    clearInterval(obj[attr+'timer']);
                    zBase.css(obj,attr,top+space+"px");
                }               
                },20);


        },

        hover:function()
            {
                for(var  i=0;i<this.slide_btn.length;i++)
                {
                    this.slide_btn[i].index=i;
                    this.slide_btn[i].onmouseover=function()
                    {
                        if(zBase.slide.timer)
                        {
                            clearInterval(zBase.slide.timer);   
                        }   

                        zBase.config.index=this.index;


                        //console.log(this.slide_btn);

                        for(var j=0;j<zBase.slide_btn.length;j++)
                        {
                            zBase.$remove(zBase.slide_btn[j],'hover');

                        }

                        zBase.$add(zBase.slide_btn[zBase.config.index],'hover');
                        zBase.animate(zBase.img_div,zBase.config.direct,-zBase.config.index*1000);

                    }

                    this.slide_btn[i].onmouseout=function()
                    {
                        zBase.play();   
                    }
                }

            },
            play:function(){
                this.slide.timer = setInterval(function(){

                    var tags=zBase.$tagName('img',this.img_div);
                    //zBase.$tagName('img',this.img_div)[zBase.config.index].style.display="block";


                    for(var i =0;i<tags.length;i++)
                    {
                    if(zBase.config.index==i)
                    {
                        zBase.$tagName('img',this.img_div)[zBase.config.index].style.display="block";
                    }   
                    else
                    {
                        zBase.$tagName('img',this.img_div)[i].style.display="none"; 
                    }
                    }


                     zBase.config.index++;
                    if(zBase.config.index>=zBase.img_arr.length) zBase.config.index=0;
                    zBase.animate(zBase.img_div,zBase.config.direct,-zBase.config.index*500);
                   for(var j=0;j<zBase.slide_btn.length;j++){
                      zBase.$remove(zBase.slide_btn[j],'hover') ;
                   }
                   zBase.$add(zBase.slide_btn[zBase.config.index],'hover');
                },3000)
            }

}




    zBase.init();


</script>

 </body>
</html>
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