vue3 封装t点击左右箭头实现内容滑动组件

1、组件

<template>
  <div class="switch-tab">
    <div class="switch-tab-left" @click="leftClick">
      <el-icon :size="24" color="rgba(99, 149, 255, 1)"><ArrowLeft /></el-icon>
    </div>
    <!-- 显示的区域 -->
    <div class="switch-tab-wrap">
      <!-- 滑动的区域 -->
      <div class="switch-tab-scroll-content" :class="id">
        <slot />
      </div>
    </div>
    <div class="switch-tab-right" @click="rightClick">
      <el-icon :size="24" color="rgba(99, 149, 255, 1)"><ArrowRight /></el-icon>
    </div>
  </div>
</template>
<script setup>
import { reactive, ref } from "vue";
/*******************************定义属性props***************************************/
const props = defineProps({
  moveWidth: {
    // 左右移动基础值
    type: Number,
    default: 100,
  },
  id: { // 唯一性
    type: String,
    default: `switch-scroll`,
  },
});
/*******************************定义变量***************************************** */
/******************************定义函数*******************************************/
const leftClick = () => {
  let dom = document.querySelector(`.${props.id}`);
  if (dom.offsetLeft >= -props.moveWidth) {
    dom.style.left = `0px`;
  } else {
    dom.style.left = `${dom.offsetLeft + props.moveWidth}px`;
  }
};
const rightClick = () => {
  let dom = document.querySelector(`.${props.id}`);
  let domWrap = document.querySelector(".switch-tab-wrap");
  if (
    dom.scrollWidth + dom.offsetLeft - props.moveWidth <=
    domWrap.offsetWidth
  ) {
    dom.style.left = `${domWrap.offsetWidth - dom.scrollWidth}px`;
  } else {
    dom.style.left = `${dom.offsetLeft - props.moveWidth}px`;
  }
};
</script>
<style lang='scss' scoped>
.switch-tab {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  height: 100%;
  &-left,
  &-right {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 82px;
    background: rgba(52, 118, 255, 0.04);
    border-radius: 2px;
    cursor: pointer;
  }
  &-wrap {
    position: relative;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    width: calc(100% - 100px);
    height: 100%;
    padding: 0 10px;
    overflow: hidden;
    transition: all 0.3s;
  }
  &-scroll-content {
    position: absolute;
    left: 0px;
    display: flex;
    align-items: center;
    width: auto;
    height: 36px;
    transition: all 0.3s;
  }
}
</style>

View Code

2、父组件调用

<template>
  <zy-switch-tab :moveWidth="187" id="to-do">

<div class="switch-tab-scroll-item" v-for="item in 30" :key="item">
      {{ item }}
    </div>
  </zy-switch-tab>
</template>
<script setup>
import { reactive } from "vue";
/*******************************定义属性props***************************************/
/*******************************定义变量***************************************** */
/******************************定义函数*******************************************/
</script>
<style lang='scss' scoped>
.switch-tab-scroll-item {
  width: 100px;
  font-size: 15px;
  font-weight: 400;
  color: #000;
}
</style>