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Various JQuery loop scrolling text and picture effect codes_jquery

WBOY
WBOYOriginal
2016-05-16 15:16:381521browse

I imitated the writing method of JQ plug-in and wrote a circular scrolling list plug-in, which supports customization of the four directions of up, down, left, and right, and supports smooth scrolling or intermittent scrolling, both of which are set through parameters. There are some repetitive parts in JQ, and I can't think of a better way to streamline them yet. However, the effect is still good, as follows (the renderings are accelerated after uploading, and the actual effect is much slower than this):

The html code is as follows: 

<!doctype html>
<html lang="zh-cn">
<head>
<meta charset="utf-8">
<title>循环滚动列表</title>
<link href="css/style.css" rel="stylesheet"/>
<script src="js/jquery-1.9.1.min.js"></script>
<script src="js/autoScroll.js"></script>
<script>
 $(function(){
 //下面是调用语句，以ID名区分

 $("#autoScroll01").autoScroll({
  direction: 'left',    //滚动方向，'up'、'down'、'left'、'right'，*必须参数
  interval: 40,      //滚动间隔，单位'ms'，一定要大于'滚动速度'，*必须参数
  speed: 10,      //滚动完成耗时，单位'ms'，一定要小于'滚动间隔'，*必须参数
  distance: 3,      //单次滚动距离，单位'px'，*必须参数  
  liWidth: 144,      //单个li的盒模型高度&宽度(包括margin值。左右滚动只有liWidth参数，上下滚动只有liHeight参数)，*必须参数
  showNum: 6      //显示几个li，父级高会自适应，但不要超过最大个数，*必须参数 
 });

 $("#autoScroll02").autoScroll({
  direction: 'up',     
  interval: 50,      //interval、speed、distance都很小时，就形成了平滑滚动现象。
  speed: 10,      
  distance: 1,      
  liHeight: 30,          
  showNum: 4      
 });

 $("#autoScroll03").autoScroll({
  direction: 'down',    //向下滚动
  interval: 2000,     //2秒滚动一次
  speed: 600,      //滚动耗时0.6秒（所以必须2秒内滚完，以免没滚完就执行下一次滚动了）
  distance: 40,     //一次滚动40px
  liHeight: 40,     //单个的li的盒模型高度是40px（上下滚动li没有margin跟padding值）
  showNum: 3      //容器里显示3个li标签
 });

 $("#autoScroll04").autoScroll({
  direction: 'right',
  interval: 2500,     //interval、speed、distance都很大时，就形成了间歇性滚动现象。
  speed: 800,
  distance: 288,     
  liWidth: 144,     //左右滚动时，liWidth要算上margin值，注意盒模型
  showNum: 5     
 });

 });
</script>
</head>
<body>
<!-- wrap和boxs box0*这个div非必需,用于布局而已 --> 
<div class="wrap">
 <!-- 布局必须结构为：外层容器id，里面是 ul 跟 li -->
 <div class="boxs box01">
 <div class="autoBox" id="autoScroll01">
  <ul class="clearfix">
  <li><a href="#"><img src="images/img01.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img02.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img03.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img04.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img05.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img06.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img07.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img08.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img09.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img10.jpg" alt=""></a></li>
  </ul>
 </div>
 </div>
 <!--第二个案例 保持结构不变，id不同就可以复用多个-->
 <div class="boxs box02">
 <div class="autoBox" id="autoScroll02">
  <ul>
  <li><a href="#">1. 何日功成名遂了，还乡，醉笑陪公三万场。不用诉离觞，痛饮从来别有肠。</a></li>
  <li><a href="#">2. 何日功成名遂了，还乡，醉笑陪公三万场。不用诉离觞，痛饮从来别有肠。</a></li>
  <li><a href="#">3. 何日功成名遂了，还乡，醉笑陪公三万场。不用诉离觞，痛饮从来别有肠。</a></li>
  <li><a href="#">4. 何日功成名遂了，还乡，醉笑陪公三万场。不用诉离觞，痛饮从来别有肠。</a></li>
  <li><a href="#">5. 何日功成名遂了，还乡，醉笑陪公三万场。不用诉离觞，痛饮从来别有肠。</a></li>
  <li><a href="#">6. 何日功成名遂了，还乡，醉笑陪公三万场。不用诉离觞，痛饮从来别有肠。</a></li>
  <li><a href="#">7. 何日功成名遂了，还乡，醉笑陪公三万场。不用诉离觞，痛饮从来别有肠。</a></li>
  <li><a href="#">8. 何日功成名遂了，还乡，醉笑陪公三万场。不用诉离觞，痛饮从来别有肠。</a></li>
  </ul>
 </div>
 </div>
 <div class="boxs box03">
 <div class="autoBox" id="autoScroll03">
  <ul>
  <li><a href="#">1. 何日功成名遂了，还乡，醉笑陪公三万场。不用诉离觞，痛饮从来别有肠。</a></li>
  <li><a href="#">2. 何日功成名遂了，还乡，醉笑陪公三万场。不用诉离觞，痛饮从来别有肠。</a></li>
  <li><a href="#">3. 何日功成名遂了，还乡，醉笑陪公三万场。不用诉离觞，痛饮从来别有肠。</a></li>
  <li><a href="#">4. 何日功成名遂了，还乡，醉笑陪公三万场。不用诉离觞，痛饮从来别有肠。</a></li>
  <li><a href="#">5. 何日功成名遂了，还乡，醉笑陪公三万场。不用诉离觞，痛饮从来别有肠。</a></li>
  <li><a href="#">6. 何日功成名遂了，还乡，醉笑陪公三万场。不用诉离觞，痛饮从来别有肠。</a></li>
  <li><a href="#">7. 何日功成名遂了，还乡，醉笑陪公三万场。不用诉离觞，痛饮从来别有肠。</a></li>
  <li><a href="#">8. 何日功成名遂了，还乡，醉笑陪公三万场。不用诉离觞，痛饮从来别有肠。</a></li>
  </ul>
 </div>
 </div>
 <div class="clear"></div>
 <div class="boxs box04">
 <div class="autoBox" id="autoScroll04">
  <ul class="clearfix">
  <li><a href="#"><img src="images/img01.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img02.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img03.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img04.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img05.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img06.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img07.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img08.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img09.jpg" alt=""></a></li>
  <li><a href="#"><img src="images/img10.jpg" alt=""></a></li>
  </ul>
 </div>
 </div>
</div>
</body>
</html>

The css style is as follows: 

@charset "utf-8";
/* 简单reset */
body, ul, li {
 margin: 0;
 padding: 0;
}
body {
 font: 14px/24px Microsoft YaHei;
 color: #333;
}
ul { list-style: none; }
a {
 color: #333;
 outline: none;
 text-decoration: none;
}
a:hover { color: #2986dd; }
img { border: none; }
.clearfix:after {
 visibility: hidden;
 display: block;
 font-size: 0;
 content: " ";
 clear: both;
 height: 0;
}
.clear {
 display: block;
 clear: both;
 height: 0;
 font-size: 0;
 line-height: 0;
 content: ".";
 overflow: hidden;
}
.wrap {
 width: 900px;
 padding-top: 30px;
 margin: 0 auto;
}
.boxs {
 padding: 15px;
 margin: 0 auto 30px;
 background-color: #e4fbff;
}
.box01 { width: 870px; }
.box02 {
 float: left;
 width: 400px;
}
.box03 {
 float: right;
 width: 400px;
}
.box04 { width: 720px; }
/* 具体样式 ---------- */
/* 通用必需样式 */ /* PS：有些重要样式在js里先写好了，下面id容器、ul和li标签的样式比较重要 */ 
.autoBox {
 position: relative;
 margin: 0 auto;
 overflow: hidden;
}
.autoBox ul {
 position: absolute;
 list-style: none;
 z-index: 2;
}
/* 第一、四个列表 */ /* PS：左右滚动型列表需要css定义高度，li标签可以有margin值 */
#autoScroll01, #autoScroll04 {
 width: auto;
 height: 174px;
}
#autoScroll01 ul li, #autoScroll04 ul li {
 float: left;
 width: 128px;
 height: 168px;
 padding: 3px;
 margin: 0 5px;
 _display: inline;
}
#autoScroll01 li a, #autoScroll04 li a {
 display: block;
 padding: 3px;
 border: 1px solid #dbdbdb;
 box-shadow: 0 0 3px rgba(170, 223, 252, 0.5);
}
#autoScroll01 li a:hover, #autoScroll04 li a:hover {
 border-color: #71ddff;
 box-shadow: 0 0 3px rgba(77, 185, 245, .90);
}
#autoScroll01 li img, #autoScroll04 li img {
 display: block;
 width: 120px;
 height: 160px;
}
/* 第二、三个列表 */ /* PS：上下滚动型列表需要css定义宽度，li标签尽量不要设置margin值 */
#autoScroll02, #autoScroll03 {
 width: 100%;
 height: auto;
}
#autoScroll02 ul li {
 height: 30px;
 line-height: 30px;
 overflow: hidden;
}
#autoScroll03 ul li {
 height: 40px;
 line-height: 40px;
 overflow: hidden;
}
#autoScroll02 li a, #autoScroll03 li a {
 display: block;
 width: 100%;
 height: 24px;
 line-height: 24px;
 margin: 3px 0;
 text-overflow: ellipsis;
 white-space: nowrap;
 overflow: hidden;
}
#autoScroll03 li a { margin: 8px 0; }

js code is as follows: 

/** 
 * Name : 循环滚动列表 
 **/
 (function(jQuery){
  $.fn.autoScroll = function (o) {
  o = $.extend({         //设置默认参数 
   direction: 'left',
   interval: null,
   speed: null,
   distance: null,        
   liWidth: null,
   liHeight: null,         
   showNum: null
  },o || {});
  return this.each(function(){     //回调开始
   var $ts = $(this),
    $ul = $ts.children("ul"),
    $li = $ul.children("li"),
    len = $li.length;
   if (o.direction == 'up' || o.direction == 'down' ){   //根据类型设置css
    $ts.css({ "width": "100%", "height": o.showNum * o.liHeight });
    $ul.css({ "width": "100%", "height": len * o.liHeight });
    $li.css({ "float": "none", "width": "100%", "height": o.liHeight, "margin": 0,"padding": 0 });
   };   
   if (o.direction == 'left' || o.direction == 'right' ){  //其实也可以在css里写好
    $ts.css({ "width": o.showNum * o.liWidth });
    $ul.css({ "width": len * o.liWidth });
    $li.css({ "float": "left" });
   };
   switch (o.direction){          //分四种情况，进行事件调用
    case 'left': sroLeft();
    break;
    case 'right':sroRight();
    break;
    case 'up':  sroUp();
    break;
    case 'down': sroDown();
    break; 
   };
   function sroLeft(){           //向左滚动事件
    $ul.css("left", 0); 
    var left;
    function leftMoving(){
     var dis = -o.distance,
      dif = -o.liWidth * (len - o.showNum);
      left = parseFloat($ul.css("left"));
     if (left <= dif){
      $ul.css("left",0);
      left = 0;
      $ul.delay(o.interval);
     };
     var ltDis = left + dis;
     if(ltDis <= dif){
      ltDis = dif;
     };
     $ul.animate({"left":ltDis+"px"}, o.speed);
    };
    $ul.hover(            //鼠标移上、移下的阻止与恢复滚动
     function(){
      clearInterval(fnLeft);
     },
     function(){
      fnLeft = setInterval(function(){leftMoving()}, o.interval);
     }
    );
    fnLeft = setInterval(function(){leftMoving()}, o.interval);
   };
   function sroRight(){          //向右滚动事件
    $ul.css("right", 0); 
    var right;
    function rightMoving(){
     var dis = -o.distance,
      dif = -o.liWidth * (len - o.showNum);
      right = parseFloat($ul.css("right"));
     if (right <= dif){
      $ul.css("right",0);
      right = 0;
      $ul.delay(o.interval);
     };
     var rtDis = right + dis;
     if(rtDis <= dif){
      rtDis = dif;
     };
     $ul.animate({"right":rtDis+"px"}, o.speed);
    };
    $ul.hover(
     function(){
      clearInterval(fnRight);
     },
     function(){
      fnRight = setInterval(function(){rightMoving()}, o.interval);
     }
    );
    fnRight = setInterval(function(){rightMoving()}, o.interval);
   };
   function sroUp(){           //向上滚动事件
    $ul.css("top", 0);
    var top;
    function upMoving(){
     var dis = -o.distance,
      dif = -o.liHeight * (len - o.showNum);
      top = parseFloat($ul.css("top"));
     if (top <= dif){
      $ul.css("top",0);
      top = 0;
      $ul.delay(o.interval);
     };
     var tpDis = top + dis;
     if(tpDis <= dif){
      tpDis = dif;
     };
     $ul.animate({"top":tpDis+"px"}, o.speed);
    };
    $ul.hover(
     function(){
      clearInterval(fnUp);
     },
     function(){
      fnUp = setInterval(function(){upMoving()}, o.interval);
     }
    );
    fnUp = setInterval(function(){upMoving()}, o.interval);
   };
   function sroDown(){           //向下滚动事件
    $ul.css("bottom",0);
    var bottom;
    function downMoving(){
     var dis = -o.distance,
      dif = -o.liHeight * (len - o.showNum);
      bottom = parseFloat($ul.css("bottom"));
     if (bottom <= dif){
      $ul.css("bottom",0);
      bottom = 0;
      $ul.delay(o.interval);
     };
     var bmDis = bottom + dis;
     if(bmDis <= dif){
      bmDis = dif;
     };
     $ul.animate({"bottom":bmDis+"px"}, o.speed);
    };
    $ul.hover(
     function(){
      clearInterval(fnDown);
     },
     function(){
      fnDown = setInterval(function(){downMoving()}, o.interval);
     }
    );
    fnDown = setInterval(function(){downMoving()}, o.interval);
   };
  });
 };
})(jQuery);


It is compatible with IE6+, and there is no problem if you use jq library 1.7+.

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