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 = '
';
max=imgfield.size();
//按图片传入对应的按钮
imgfield.each(function(i){
icohtml += '
' + (i + 1) + '';
});
icohtml += '
';
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
.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}
jquery代码
/*******************************
* @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:/jq-plugin-ifadeslide/
* @author
* @author blog /
* @creation date: .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 = '
';
max=imgfield.size();
//按图片传入对应的按钮
imgfield.each(function(i){
icohtml += '
' + (i + 1) + '';
});
icohtml += '
';
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
});
});
html代码
