基于jquery的无缝循环新闻列表插件-jquery

2019-10-25 11:48:38 织梦安装使用
  • 文章介绍
一、效果图:

tips源码下载 http://xiazai.jb51.net/201103/yuanma/jquerynewslist.rar
二、jquery源码:
代码如下:

(function($){
$.fn.extend({
newsList:function(options){
var defaults ={
actName:li, //显示条数名;
maxShowNum:6, //最多的显示条数;
actNameH:28, //一次移动的距离;
ulClass:.ul_news_list, //被复制层的class
copyUlClass:.ul_news_list2, //复制层的class
autoTime:1500, //自动运行时间;
clickGoUpC:.go_uplist, //点击向上class;
clickDownUpC:.go_downlist, //点击向下class;
goStart:go_tart,
autoCloss:flase //自动运行开关,当为flase时为开,其它则关;
} ;

options = $.extend(defaults, options);
return this.each(function(){
var o = options;
var counts =1;
var linum = $($(this).find(o.actName),$(this)).size();
var ul_class = $($(this).find(o.ulClass),$(this));
var copy_ul_class = $($(this).find(o.copyUlClass),$(this));
var click_go_up_c = $($(this).find(o.clickGoUpC),$(this));
var click_go_down_C = $($(this).find(o.clickDownUpC),$(this));
var go_start = $($(this).find(o.goStart),$(this));
if(linum > o.maxShowNum){
$(copy_ul_class).html($(ul_class).html());
goStartList();
}
var thiswrap = $($(ul_class).parent().parent(),$(this));
//自动运行函数
function auto_function(){
if(counts <= linum){
$(ul_class).animate({top:-= + o.actNameH},o.autoTime);
$(copy_ul_class).animate({top:-= + o.actNameH},o.autoTime);
counts++;
}else{
$(ul_class).animate({top:0},0);
$(copy_ul_class).animate({top:0},0);
counts = 1;
}
}
//点击向上移动时;
if(linum > o.maxShowNum){
$(click_go_up_c).click(function(){
if(counts <= linum){
$(ul_class).animate({top:-= + o.actNameH},0);
$(copy_ul_class).animate({top:-= + o.actNameH},0);
counts++;
}else{
$(ul_class).animate({top:0},0);
$(copy_ul_class).animate({top:0},0);
counts = 1;
}
});
}
//点击向下移动时;
if(linum > o.maxShowNum){
$(click_go_down_C).click(function(){
if(counts > 1){
counts--;
$(ul_class).animate({top:-+ counts*o.actNameH},0);
$(copy_ul_class).animate({top:-+ counts*o.actNameH},0);
}else{
$(ul_class).animate({top:0},0);
$(copy_ul_class).animate({top:0},0);
counts = linum+1;
}
});
}
//鼠标经过所发生的开始停止;
if(linum > o.maxShowNum){
$(thiswrap).hover(function(){
goStopList();
},function(){
goStartList();
});
}
function goStartList(){
if(o.autoCloss === flase){
go_start = setInterval(auto_function,o.autoTime);
}
}
function goStopList(){
clearInterval(go_start);
}
});
}
});
}(jQuery));

三、HTML:
代码如下:

四、CSS:
代码如下:

body { font-family:"微软雅黑",Arial,"Lucida Grande", Verdana, Lucida; font-size:12px; }
*{ padding:0; margin:0;}
img { border:0;}
.clear { clear:both;}
a { color:#000; text-decoration:none;}
a:hover { color:#EC6104; text-decoration:none;}
.undis { display:none;}/*news_list*/
.news_list_bar { position:relative; width:560px; height:168px; overflow:hidden; background:url(../images/slideshow2/v3_picture6.gif) repeat-y; background-color:#F00;}
.ul_news_list,
.ul_news_list2{ position:relative; list-style:none;}
.ul_news_list li,
.ul_news_list2 li{line-height:28px; height:28px; width:500px; overflow:hidden; white-space:nowrap;padding:0 20px;}
.ul_news_list li a,
.ul_news_list2 li a{ padding-right:20px;}
.go_upanddown { position:absolute; margin:-20px 0 0 500px;}
.go_upanddown span { padding-right:10px; cursor:pointer;}

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