jQuery实现可自动切换的幻灯片效果插件代码

jQuery实现可自动切换的幻灯片效果插件代码
1. 用户快速划过按钮时不触发鼠标事件;
2. 鼠标划入当前图片按钮时不闪烁;
3. 简化并优化代码.
使用方法就不详述了, 请参见源码及相关注释
$.fn.ifadeslide = function(iset){
/*
  * iset可选参数说明:
  * iset.field==>幻灯区域内的图片集
  * iset.ico==>按钮钩子
  * iset.high==>按钮高亮样式
  * iset.interval==>图片切换时间
  * iset.leavetime==>不触发鼠标划入事件的最大时间值
  * iset.fadeintime==>淡入时间
  * iset.fadeouttime==>淡出时间
  * 调用方式$(document).ifadeslide({field:'...',ico:'...',...})
  */
    iset = $.extend({high:'high',interval:3000,leavetime:150,fadeouttime:400,fadeintime:400},iset);
    var imgfield = $(iset.field || '#slide>img');
    var icofield = $(iset.ico || '#ico');
var curindex = 0;
    var slideinterval = iset.interval || 3000;
    var hovertime = iset.leavetime || 150;
    var fadeouttime = iset.fadeouttime || 400;
    var fadeintime = iset.fadeintime || 400;
    var icos=null, fasthoverfun = null, autoslidefun = null, hasicohighcls = null, changefun = null,max=null;;
    var icohtml = '<ul>';
max=imgfield.size();
//按图片传入对应的按钮
    imgfield.each(function(i){
        icohtml += '<li>' + (i + 1) + '</li>';
    });
    icohtml += '</ul>';
    icofield.append(icohtml);
//淡入淡出函数
    changefun = function(n){
        imgfield.filter(':visible').fadeout(fadeouttime, function(){
            imgfield.eq(n).fadein(fadeintime)
            icos.eq(n).addclass(iset.high).siblings().removeclass(iset.high);
        });
    }
    icos = icofield.find('ul>li');
//为第一个按键初始化高亮
    icos.first().addclass(iset.high);
//按钮鼠标划入划出事件
    icos.hover(function(){
        clearinterval(autoslidefun);
        curindex = icos.index(this);
        hasicohighname = $(this).hasclass(iset.high);
  //settimeout避免用户快速(无意识性划过)划过时触发事件
        fasthoverfun = settimeout(function(){
   //鼠标划入当前图片按钮时不闪烁
            if (!hasicohighname) {
                changefun(curindex);
            }
        }, hovertime);
    }, function(){
        cleartimeout(fasthoverfun);
  //自动切换
        autoslidefun = setinterval(function(){
            curindex++;
            changefun(curindex);
            if (curindex ==max ) {
    changefun(0);
                curindex = 0;
            }
        }, slideinterval)
    }).eq(0).trigger('mouseleave');

    //当鼠标划入图片区域时停止切换
    imgfield.hover(function(){
        curindex = imgfield.index(this);
        clearinterval(autoslidefun);
    }, function(){
        icos.eq(curindex).trigger('mouseleave');
    });
}

实例完整代码

<style>
.box{width:700px;height:250px}
/*sample-a*/
#slide { position:relative;width:200px; height:250px; overflow:hidden; border:1px solid #ccc; float:left}
#slide img{width:200px; height:250px;cursor:pointer}
#slide #ico{position:absolute; right:8px;bottom:6px}
#slide #ico li{background:#fff;float:left;display:block; width:15px; height:15px; line-height:15px;border:1px solid #cecece;font-family:arial, helvetica, sans-serif;text-align:center;margin:2px; padding: 1px;cursor:pointer}
#slide #ico li.high{background:#047;color:#fff;font-weight:bolder}
/*sample-b*/
#slide_b { position:relative;width:460px; height:250px; overflow:hidden; border:1px solid #ccc; float:right }
#slide_b img{width:460px; height:250px}
#slide_b .ico_b{position:absolute; right:8px;bottom:6px}
#slide_b .ico_b li{background:#fff;float:left;display:block; width:15px; height:15px; line-height:15px;border:1px solid #cecece;font-family:arial, helvetica, sans-serif;text-align:center;margin:2px; padding: 1px;cursor:pointer}
#slide_b .ico_b li.high_b{background:#a40000;color:#fff;font-weight:bolder}
/*sample-c*/
#slide_c { position:relative;width:700px; height:250px; overflow:hidden; border:1px solid #ccc; margin-top:20px; }
#slide_c img{width:700px; height:250px}
#slide_c .ico_c{position:absolute; right:8px;bottom:6px}
#slide_c .ico_c li{background:#fff;float:left;display:block; width:15px; height:15px; line-height:15px;border:1px solid #cecece;font-family:arial, helvetica, sans-serif;text-align:center;margin:2px; padding: 1px;cursor:pointer}
#slide_c .ico_c li.high{background:#000;color:#fff;font-weight:bolder}
</style>

jquery代码

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
<script>
/*******************************
* @jQuery实现可自动切换的幻灯片效果插件代码
* @jquery vesion:1.4.2
* @plugin page:http://mrthink.net/jq-plugin-ifadeslide/
* @author 3ppt.com
* @author blog http://www.3ppt.com/
* @creation date: 2011.01.11
*******************************/
$.fn.ifadeslide = function(iset){
/*
  * iset可选参数说明:
  * iset.field==>幻灯区域内的图片集
  * iset.ico==>按钮钩子
  * iset.high==>按钮高亮样式
  * iset.interval==>图片切换时间
  * iset.leavetime==>不触发鼠标划入事件的最大时间值
  * iset.fadeintime==>淡入时间
  * iset.fadeouttime==>淡出时间
  * 调用方式$(document).ifadeslide({field:'...',ico:'...',...})
  */
    iset = $.extend({high:'high',interval:3000,leavetime:150,fadeouttime:400,fadeintime:400},iset);
    var imgfield = $(iset.field || '#slide>img');
    var icofield = $(iset.ico || '#ico');
var curindex = 0;
    var slideinterval = iset.interval || 3000;
    var hovertime = iset.leavetime || 150;
    var fadeouttime = iset.fadeouttime || 400;
    var fadeintime = iset.fadeintime || 400;
    var icos=null, fasthoverfun = null, autoslidefun = null, hasicohighcls = null, changefun = null,max=null;;
    var icohtml = '<ul>';
max=imgfield.size();
//按图片传入对应的按钮
    imgfield.each(function(i){
        icohtml += '<li>' + (i + 1) + '</li>';
    });
    icohtml += '</ul>';
    icofield.append(icohtml);
//淡入淡出函数
    changefun = function(n){
        imgfield.filter(':visible').fadeout(fadeouttime, function(){
            imgfield.eq(n).fadein(fadeintime)
            icos.eq(n).addclass(iset.high).siblings().removeclass(iset.high);
        });
    }
    icos = icofield.find('ul>li');
//为第一个按键初始化高亮
    icos.first().addclass(iset.high);
//按钮鼠标划入划出事件
    icos.hover(function(){
        clearinterval(autoslidefun);
        curindex = icos.index(this);
        hasicohighname = $(this).hasclass(iset.high);
  //settimeout避免用户快速(无意识性划过)划过时触发事件
        fasthoverfun = settimeout(function(){
   //鼠标划入当前图片按钮时不闪烁
            if (!hasicohighname) {
                changefun(curindex);
            }
        }, hovertime);
    }, function(){
        cleartimeout(fasthoverfun);
  //自动切换
        autoslidefun = setinterval(function(){
            curindex++;
            changefun(curindex);
            if (curindex ==max ) {
    changefun(0);
                curindex = 0;
            }
        }, slideinterval)
    }).eq(0).trigger('mouseleave');

    //当鼠标划入图片区域时停止切换
    imgfield.hover(function(){
        curindex = imgfield.index(this);
        clearinterval(autoslidefun);
    }, function(){
        icos.eq(curindex).trigger('mouseleave');
    });
}

$(function(){
//sample-a
$(document).ifadeslide();

//sample-b
$(document).ifadeslide({
  field: $('div#slide_b a'),
  ico:$('div.ico_b'),
        high: 'high_b',
        interval: 2000
});

//sample-c
$(document).ifadeslide({
  field: $('div#slide_c img'),
  ico: $('div.ico_c'),
  fadeouttime:100,
  fadeintime: 200
});
});
</script>

html代码

<div id="demo">
<div class="box">
<!--sample-a-->
<div id="slide">
            <img src="/static-data/assets/6/619e98ef7507a105040d1a92ca70232a1eb207fd_m.jpg" title="demo" alt="demo" />
            <img src="/static-data/assets/6/178ead7c5436be41b07126a1f2053be976c53576_m.jpg" title="demo" alt="demo" />
            <img src="/static-data/assets/6/5958057370c288b30c48ac57261366f7e6613eaa_m.jpg" title="demo" alt="demo" />
            <div id="ico"></div>
</div>
<!--sample-a end-->
<!--sample-b-->
<div id="slide_b">
            <a href="http://mrthink.net/sitemap/"><img src="/static-data/assets/6/619e98ef7507a105040d1a92ca70232a1eb207fd_m.jpg" title="demo" alt="demo" /></a>
            <a href="http://mrthink.net/sitemap/"><img src="/static-data/assets/6/178ead7c5436be41b07126a1f2053be976c53576_m.jpg" title="demo" alt="demo" /></a>
            <a href="http://mrthink.net/sitemap/"><img src="/static-data/assets/6/5958057370c288b30c48ac57261366f7e6613eaa_m.jpg" title="demo" alt="demo" /></a>
            <a href="http://mrthink.net/sitemap/"><img src="/static-data/assets/6/f8bc38048259f10f07bb3fb06a5c8867dd2a4419_m.jpg" title="demo" alt="demo" /></a>
            <div class="ico_b"></div>
</div>
<!--sample-b end-->
</div>
<!--sample-c-->
<div id="slide_c">
            <img src="/static-data/assets/6/619e98ef7507a105040d1a92ca70232a1eb207fd_m.jpg" title="demo" alt="demo" />
            <img src="/static-data/assets/6/178ead7c5436be41b07126a1f2053be976c53576_m.jpg" title="demo" alt="demo" />
            <img src="/static-data/assets/6/5958057370c288b30c48ac57261366f7e6613eaa_m.jpg" title="demo" alt="demo" />
    <img src="/static-data/assets/6/f8bc38048259f10f07bb3fb06a5c8867dd2a4419_m.jpg" title="demo" alt="demo" />
            <img src="/static-data/assets/6/cd8cdf92b2519c344d1e9849fbaf238f7c6b5d13_m.jpg" title="demo" alt="demo" />
            <div class="ico_c"></div>
</div>
<!--sample-c end-->
</div>