轮播用的jquery.slideBox.js这个插件,需要加点击按钮可以左右切换图片的效果。我这样写哪里不对?切换不了。要怎么改?
原插件代码
/*
* jQuery图片轮播(焦点图)插件
* ADD.JENA.201206291027
* EDIT.JENA.201206300904
* EDIT.JENA.201207051027
* EDIT.JENA.201208090849
* EDIT.JENA.201303141312
* Version: 1.2.0314
* Author: jena
* Demo: http://ishere.cn/demo/jquery.slidebox/
*/
(function($) {
$.fn.slideBox = function(options) {
//默认参数
var defaults = {
direction : 'left',//left,top
duration : 0.6,//unit:seconds
easing : 'swing',//swing,linear
delay : 3,//unit:seconds
startIndex : 0,
hideClickBar : false,
hideClickArrows : false,
clickBarRadius : 10,//unit:px
hideBottomBar : false,
width : null,
height : null
};
var settings = $.extend(defaults, options || {});
//计算相关数据
var wrapper = $(this),
ul = wrapper.children('ul.items'),
lis = ul.find('li'),
firstPic = lis.first().find('img');
console.log(lis.length);
var li_num = lis.length, li_height = 0, li_width = 0;
//定义滚动顺序:ASC/DESC.ADD.JENA.201208081718
var order_by = 'ASC';
//初始化
var init = function(){
if(!wrapper.length) return false;
//手动设定值优先.ADD.JENA.201303141309
li_height = settings.height ? settings.height : lis.first().height();
li_width = settings.width ? settings.width : lis.first().width();
wrapper.css({width: li_width+'px', height:li_height+'px'});
lis.css({width: li_width+'px', height:li_height+'px'});//ADD.JENA.201207051027
if (settings.direction == 'left') {
ul.css('width', li_num * li_width + 'px');
} else {
ul.css('height', li_num * li_height + 'px');
}
ul.find('li:eq('+settings.startIndex+')').addClass('active');
if(!settings.hideBottomBar){//ADD.JENA.201208090859
var tips = $('<div class="tips"></div>').css('opacity', 1).appendTo(wrapper);
var title = $('<div class="title"></div>').html(function(){
var active = ul.find('li.active').find('a'),
text = active.attr('title'),
href = active.attr('href');
return $('<a>').attr('href', href).text(text);
}).appendTo(tips);
var nums = $('<div class="nums"></div>').hide().appendTo(tips);
if (li_num>1) {
lis.each(function(i, n) {
var a = $(n).find('a'), text = a.attr('title'), href = a.attr('href'), css = '';
i == settings.startIndex && (css = 'active');
$('<a>').attr('href', href).text(text).addClass(css).css('borderRadius', settings.clickBarRadius+'px').mouseover(function(){
$(this).addClass('active').siblings().removeClass('active');
ul.find('li:eq('+$(this).index()+')').addClass('active').siblings().removeClass('active');
start();
stop();
}).appendTo(nums);
});
}
if(settings.hideClickBar){//ADD.JENA.201206300847
nums.show().delay(2000).animate({top: tips.height()+'px'}, 'fast');
tips.hover(function(){
nums.animate({top: '0px'}, 'fast');
}, function(){
nums.animate({top: tips.height()+'px'}, 'fast');
});
nums.show().delay(2000).animate({top: tips.height()+'px'}, 'fast');
}else{
nums.show();
}
}
lis.length>1 && start();
}
//开始轮播
var start = function() {
var active = ul.find('li.active'),
active_a = active.find('a');
var index = active.index();
var bodyW=$('body').width();
if(settings.direction == 'left'){
offset = index * li_width * -1;
param = {'left':offset + 'px' };
}else{
offset = index * li_height * -1;
param = {'top':offset + 'px' };
}
wrapper.find('.nums').find('a:eq('+index+')').addClass('active').siblings().removeClass('active');
wrapper.find('.title').find('a').attr('href', active_a.attr('href')).text(active_a.attr('title'));
ul.stop().animate(param, settings.duration*1000, settings.easing, function() {
active.removeClass('active');
if(order_by=='ASC'){
if (active.next().length){
active.next().addClass('active');
}else{
order_by = 'DESC';
active.prev().addClass('active');
}
}else if(order_by=='DESC'){
if (active.prev().length){
active.prev().addClass('active');
}else{
order_by = 'ASC';
active.next().addClass('active');
}
}
});
wrapper.data('timeid', window.setTimeout(start, settings.delay*1000));
};
//停止轮播
var stop = function() {
window.clearTimeout(wrapper.data('timeid'));
};
鼠标经过事件
wrapper.hover(function(){
stop();
}, function(){
wrapper.data('timeid', window.setTimeout(start, settings.delay*1000));//ADD.JENA.201303141309
});
//首张图片加载完毕后执行初始化
var imgLoader = new Image();
imgLoader.onload = function(){
imgLoader.onload = null;
init();
}
imgLoader.src = firstPic.attr('src');
};
})(jQuery);