web-explore-demo/source/JS原生轮播表/index.html at master · vannvan/web-explore-demo · GitHub

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<!DOCTYPE html>
<html>
  <head>
    <title></title>
  </head>
  <style type="text/css">
    body {
      margin: 0;
    }
    /*#scroll-box{
	width: 500px;
	height: 300px;
	background: #ccc;
	margin:0 auto;
	overflow: hidden;
}*/
    .scroll-item {
      width: 100%;
      height: 45px;
      border-bottom: 1px solid #f00;
      text-align: center;
      line-height: 45px;
    }
    .scroll-item:nth-child(odd) {
      /*background: #f6f6f6*/
    }
    /*.animate{-webkit-transition:all 1s ease-out;}*/
  </style>
  <body>
    <div
      style="
        width: 500px;
        height: 183px;
        border: 1px solid #f00;
        overflow: hidden;
      "
    >
      <div id="scroll-box">
        <div class="scroll-item">11</div>
        <div class="scroll-item">22</div>
        <div class="scroll-item">33</div>
        <div class="scroll-item">44</div>
        <div class="scroll-item">55</div>
        <div class="scroll-item">66</div>
        <div class="scroll-item">77</div>
        <div class="scroll-item">88</div>
        <div class="scroll-item">99</div>
        <div class="scroll-item">00</div>
      </div>
    </div>

    <script type="text/javascript">
      /*
       * 列表定时滚动效果(javascript)
       * @listId :滚动列表ID
       * @listTagName :滚动元素
       * @scrollNum :设置滚动元素数量
       * @speed : 滚动速度
       */
      function fnScrollList() {
        this.init.apply(this, arguments);
      }
      fnScrollList.prototype = {
        init: function (listId, TagName, scrollNum, speed) {
          var _this = this;
          this.oList = this.$$(listId);
          this.scrollTimer = null;
          this.speed = speed || 1000;
          this.scrollNum = scrollNum || 1;
          this.TagName = TagName;
          this.distance =
            this.oList.getElementsByTagName(TagName)[0].offsetHeight *
            this.scrollNum; //列表移动距离
          this.oList.style.marginTop = 0 + "px";

          this.oList.onmouseover = function () {
            _this.pause();
          };
          this.oList.onmouseout = function () {
            _this.scrollTimer = setTimeout(function () {
              _this.play();
            }, _this.speed);
          };
          this.play();
        },
        play: function () {
          var _this = this;
          var options = { marginTop: "-" + _this.distance };
          _this.anim(_this.oList, options, function () {
            //回调函数，移动列表元素
            for (var i = 0, j = 0; i < _this.scrollNum; i++) {
              var node = _this.oList.getElementsByTagName(_this.TagName)[j];
              if (_this.TagName == "tr") {
                _this.oList.getElementsByTagName("tbody")[0].appendChild(node);
              } else {
                _this.oList.appendChild(node);
              }
            }
            _this.oList.style.marginTop = "0px";
          });

          _this.scrollTimer = setTimeout(function () {
            _this.play(_this.distance);
          }, _this.speed);
        },
        pause: function () {
          clearTimeout(this.scrollTimer);
        },
        //动画函数
        anim: function (oElement, oAttr, fnCallback) {
          var _this = this;
          clearInterval(oElement.timer);
          oElement.timer = setInterval(function () {
            var bStop = true;
            for (var property in oAttr) {
              var iCur = parseFloat(_this.css(oElement, property)); //获取当前位置属性值
              var iSpeed = (oAttr[property] - iCur) / 5; //移动进度
              iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed);
              if (iCur != oAttr[property]) {
                //如果当前数值不等于目标数值，则数值递增
                bStop = false;
                _this.css(oElement, property, iCur + iSpeed);
              }
            }
            if (bStop) {
              clearInterval(oElement.timer);
              fnCallback && fnCallback.apply(_this, arguments);
            }
          }, 50);
        },
        //处理样式函数
        css: function (oElement, attr, value) {
          if (arguments.length == 2) {
            return oElement.currentStyle
              ? oElement.currentStyle[attr]
              : getComputedStyle(oElement, null)[attr];
          } else if (arguments.length == 3) {
            switch (attr) {
              case "top":
              case "left":
              case "marginTop":
                oElement.style[attr] = value + "px";
                break;
              default:
                oElement.style[attr] = value;
                break;
            }
          }
        },
        $$: function (o) {
          if (o) {
            return document.getElementById(o);
          }
        },
      };
      var list = new fnScrollList("scroll-box", "div", 1, 2000);
    </script>
  </body>
</html>