<template>
  <!--悬浮小广告样式的提示信息-->
  <div
    id="thediv"
    ref="thediv"
    style="position: absolute; z-index: 111; left: 0; top: 0"
    v-show="thedivShow"
    @mouseover="clearFdAd"
    @mouseout="starFdAd"
  >
    <div
      style="
        cursor: pointer;
        text-align: right;
        font-size: 12px;
        color: #999999;
      "
      @click="thedivShow = false"
    >
      关闭
    </div>
    <a
      href="http://xxxxxx" target="_blank""
    ><img src="../../assets/images/tips.png" width="320" border="0" /></a>
  </div>
</template>

<script>
var interval;
export default {
  data() {
    return {
      xPos: 0,
      yPos: 0,
      xin: true,
      yin: true,
      step: 1,
      delay: 18,
      height: 0,
      Hoffset: 0,
      Woffset: 0,
      yon: 0,
      xon: 0,
      pause: true,
      thedivShow: true,
    };
  },

  mounted() {
    interval = setInterval(this.changePos, this.delay);
  },

  methods: {
    changePos() {
      let width = document.documentElement.clientWidth;
      let height = document.documentElement.clientHeight;
      this.Hoffset = this.$refs.thediv.offsetHeight; //获取元素高度
      this.Woffset = this.$refs.thediv.offsetWidth;

      // 滚动部分跟随屏幕滚动
      // this.$refs.thediv.style.left = (this.xPos + document.body.scrollLeft + document.documentElement.scrollLeft) + "px";
      // this.$refs.thediv.style.top = (this.yPos + document.body.scrollTop + document.documentElement.scrollTop) + "px";

      // 滚动部分不随屏幕滚动
      this.$refs.thediv.style.left =
        this.xPos + document.body.scrollLeft + "px";
      this.$refs.thediv.style.top = this.yPos + document.body.scrollTop + "px";

      if (this.yon) {
        this.yPos = this.yPos + this.step;
      } else {
        this.yPos = this.yPos - this.step;
      }
      if (this.yPos < 0) {
        this.yon = 1;
        this.yPos = 0;
      }
      if (this.yPos >= height - this.Hoffset) {
        this.yon = 0;
        this.yPos = height - this.Hoffset;
      }

      if (this.xon) {
        this.xPos = this.xPos + this.step;
      } else {
        this.xPos = this.xPos - this.step;
      }
      if (this.xPos < 0) {
        this.xon = 1;
        this.xPos = 0;
      }
      if (this.xPos >= width - this.Woffset) {
        this.xon = 0;
        this.xPos = width - this.Woffset;
      }
    },
    clearFdAd() {
      clearInterval(interval);
    },
    starFdAd() {
      interval = setInterval(this.changePos, this.delay);
    },
  },
};
</script>

<style lang="scss" scoped>
#thediv {
  z-index: 100;
  position: absolute;
  top: 43px;
  left: 2px;
  height: 184px;
  width: 280px;
  overflow: hidden;
  img{
      width: 100%;
      height: 100%;
  }
}
</style>