【Vue】鼠标滚轮横向滚动操作设计

需求：

鼠标滑轮滚动，操作横向滚动条

解决：

监控滚动操作，根据滚动偏移量，修改横向滚动条的位置

<template>
  <div class="image_view">
    <div class="image_content">
      <div
        v-for="(item, index) in 20"
        :key="item"
        class="image_item"
        :style="{ background: colors[index % colors.length] }"
      ></div>
    </div>
  </div>
</template>
 
<script setup>
import TipsFooterVue from "@/components/base/TipsFooter.vue";
import { onMounted } from "vue";
 
const colors = ["red", "orange", "yellow", "green", "blue", "indigo", "violet"];
 
onMounted(() => {
  // 获取 dom
  let div = document.querySelector(".image_content");
  // 监听 dom
  div.addEventListener("wheel", function (e) {
    let left = -e.wheelDelta || e.deltaY / 2;
    console.log("wheelDelta:", -e.wheelDelta, "deltaY :", e.deltaY);
    // 修改滚动条位置
    div.scrollLeft = div.scrollLeft + left;
  });
});
</script>
 
<style lang="less" scoped>
.image_view {
  width: 100%;
  .image_content {
    width: 100%;
    height: 200px;
    display: flex;
    flex-direction: row;
    overflow-x: auto;
    overflow-y: hidden;
    .image_item {
      width: 300px;
      height: 200px;
      flex: 0 0 auto;
    }
  }
}
</style>