机顶盒端字体滚动

字体滚动

this.marquee = function (status,id) {
    # status add 开始 传空清除结束
    var scrollLeft = 0;
    this.timer && clearInterval(this.timer);
    var div = getId(id);
    if (!div) return
    if (status == 'add') {
      if (div.innerHTML.length < 8) return
      scrollLeft = div.offsetWidth
      div.style.cssText = "text-indent: " + scrollLeft + "px;text-align: center;text-overflow: clip;"
      this.timer = setInterval(function () {
        if (scrollLeft <= -div.offsetWidth + 20) {
          scrollLeft = div.offsetWidth;
          div.style.cssText = "text-indent: " + scrollLeft + "px;text-align: center;text-overflow: clip;"
        } else {
          scrollLeft += -1;
          div.style.cssText = "text-indent: " + scrollLeft + "px;text-align: center;text-overflow: clip;"
        }
      }, 30);
    } else {
      if (div.innerHTML.length >= 8) {
        scrollLeft = 0;
        div.style.cssText = "text-indent: " + scrollLeft + "px;text-align: center;"
      }
    }
  };

#   getId封装获取id的function 内容：return document.getElementById(arg);