【vue3.0】17.0 某东到家（十七）——底部购物车展开页（三）

这里主要进行一些细节的优化

全选按钮图标的居中

首先是全选按钮图标的居中

.product {
 ......
  &__header {
......
    &__all {
......
      &__icon {
        display: inline-block;
        vertical-align: top;
        font-size: 0.2rem;
        color: #0091ff;
      }

image.png

全选取消状态图标优化

image.png

更新内容如下：

image.png

更新Cart.vue中的icon名称，最终效果如下：

image.png

点击蒙层，购物车隐藏

src\views\shop\Cart.vue
<template>
  <!-- 蒙层 -->
  <div class="mask" v-if="showCart" @click="handleCartShowChange"></div>
......

样式颜色集成

<style lang="scss" scoped>
@import '@/style/viriables.scss';
@import '@/style/mixins.scss';
.mask {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  top: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1;
}
.cart {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  background: $bg-color;
}
.product {
  overflow-y: scroll;
  flex: 1;
  background: $bg-color;
  &__header {
    display: flex;
    line-height: 0.52rem;
    border-bottom: 0.01rem solid $content-bg-color;
    font-size: 0.14rem;
    color: $content-font-color;
    &__all {
      width: 0.64rem;
      margin-left: 0.18rem;
      &__icon {
        display: inline-block;
        vertical-align: top;
        font-size: 0.2rem;
        margin-right: 0.05rem;
        color: $btn-bg-color;
      }
      &__text {
        display: inline-block;
        margin-left: 0.04rem;
        line-height: 0.52rem;
      }
    }
    &__clear {
      flex: 1;
      text-align: right;
      margin-right: 0.16rem;
    }
  }
  &__item {
    position: relative;
    display: flex;
    padding: 0.12rem 0.16rem;
    margin: 0 0.16rem;
    border-bottom: 0.01rem solid $content-bg-color;
    &__checked {
      line-height: 0.5rem;
      margin-right: 0.2rem;
      color: $btn-bg-color;
      i {
        font-size: 0.25rem;
      }
    }
    // 配合解决超出长度以省略号显示而不会出现换行
    &__detail {
      overflow: hidden;
    }
    &__img {
      width: 0.46rem;
      height: 0.46rem;
      margin-right: 0.16rem;
    }
    &__title {
      margin: 0;
      line-height: 0.2rem;
      font-size: 0.14rem;
      color: $content-font-color;
      // 超出长度以省略号显示而不会出现换行
      @include ellipsis;
    }
    &__price {
      margin: 0.06rem 0 0 0;
      line-height: 0.2rem;
      font-size: 0.14rem;
      color: $height-light-font-color;
    }
    &__yen {
      font-size: 0.12rem;
    }
    &__origin {
      margin-left: 0.06rem;
      line-height: 0.2rem;
      font-size: 0.12rem;
      color: $light-font-color;
      text-decoration: line-through; //中划线
    }
    // 购物车选购数量和加减号
    .product__number {
      position: absolute;
      right: 0rem;
      bottom: 0.12rem;
      &__minus,
      &__plus {
        display: inline-block;
        width: 0.2rem;
        height: 0.2rem;
        line-height: 0.16rem;
        border-radius: 50%;
        font-size: 0.2rem;
        text-align: center;
      }
      // 边框白色
      &__minus {
        border: 0.01rem solid $medium-font-color;
        color: $medium-font-color;
        margin-right: 0.05rem;
      }
      //无边框，背景蓝色
      &__plus {
        color: $bg-color;
        background: $btn-bg-color;
        margin-left: 0.05rem;
      }
    }
  }
}
.check {
  display: flex;
  box-sizing: border-box; //往内塞入border
  line-height: 0.49rem;
  height: 0.49rem;
  border-top: 0.01rem solid $content-bg-color;
  &__icon {
    width: 0.84rem;
    position: relative;
    &__img {
      margin: 0.12rem auto;
      display: block;
      width: 0.28rem;
      height: 0.28rem;
    }
    &__tag {
      // 乘以2然后等比例缩小
      position: absolute;
      left: 0.46rem;
      top: 0.04rem;
      padding: 0 0.04rem;
      min-width: 0.2rem;
      height: 0.2rem;
      line-height: 0.2rem;
      text-align: center;
      background-color: $height-light-font-color;
      border-radius: 0.1rem;
      font-size: 0.12rem;
      color: $bg-color;
      transform: scale(0.5);
      transform-origin: left center;
    }
  }
  &__info {
    flex: 1;
    color: $content-font-color;
    font-size: 0.12rem;
    &__price {
      line-height: 0.49rem;
      color: $height-light-font-color;
      font-size: 0.18rem;
    }
  }
  &__btn {
    width: 0.98rem;
    background-color: #4fb0f9;
    text-align: center;
    color: $bg-color;
    font-size: 0.14rem;
  }
}
</style>

购物车详情加减号居中

  // 购物车选购数量和加减号
    .product__number {
     ......
      bottom: 0.26rem;

image.png

“清空购物车”高度撑满

<template>
  <!-- 蒙层 -->
  <div class="mask" v-if="showCart" @click="handleCartShowChange"></div>
  <div class="cart">
    <div class="product" v-show="showCart">
      <div class="product__header">
......
        <div class="product__header__clear">
          <span
            class="product__header__clear__btn"
            @click="cleanCartProducts(shopId)"
            >清空购物车</span
          >
        </div>
      </div>
......
.product {
.....
  &__header {
  .....
    &__clear {
     .....
      &__btn {
        display: inline-block;
      }
    }
  }

image.png

最终调整效果如下：

<template>
  <!-- 蒙层 -->
  <div class="mask" v-if="showCart" @click="handleCartShowChange"></div>
  <div class="cart">
    <div class="product" v-show="showCart">
      <div class="product__header">
        <div class="product__header__all" @click="setCartItemsChecked(shopId)">
          <i
            :class="[
              'product__header__all__icon',
              'custom-icon',
              allChecked
                ? 'custom-icon-radio-checked'
                : 'custom-icon-radio-unchecked'
            ]"
          ></i>
          <span class="product__header__all__text">全选</span>
        </div>
        <div class="product__header__clear">
          <span
            class="product__header__clear__btn"
            @click="cleanCartProducts(shopId)"
            >清空购物车</span
          >
        </div>
      </div>
      <template v-for="item in productList" :key="item._id">
        <div class="product__item" v-if="item.count > 0">
          <div
            class="product__item__checked"
            @click="changeCartItemChecked(shopId, item._id)"
          >
            <i
              :class="[
                'custom-icon',
                item.checked == true
                  ? 'custom-icon-radio-checked'
                  : 'custom-icon-radio-unchecked'
              ]"
            ></i>
          </div>
          <img class="product__item__img" :src="item.imgUrl" />
          <div class="product__item__detail">
            <h4 class="product__item__title">{{ item.name }}</h4>
            <p class="product__item__price">
              <span class="product__item__yen"> &yen;{{ item.price }} </span>
              <span class="product__item__origin">
                &yen;{{ item.oldPrice }}
              </span>
            </p>
          </div>
          <div class="product__number">
            <span
              class="product__number__minus"
              @click="
                () => {
                  0
                  changeCartItemInfo(shopId, item._id, item, -1)
                }
              "
              >-</span
            >
            {{ cartList?.[shopId]?.[item._id]?.count || 0 }}
            <span
              class="product__number__plus"
              @click="
                () => {
                  changeCartItemInfo(shopId, item._id, item, 1)
                }
              "
              >+</span
            >
          </div>
        </div>
      </template>
    </div>
    <div class="check">
      <div class="check__icon" @click="handleCartShowChange">
        <img src="/i18n/9_16/img/basket.png" alt="" class="check__icon__img" />
        <div class="check__icon__tag">
          {{ total }}
        </div>
      </div>
      <div class="check__info">
        总计：<span class="check__info__price">&yen; {{ totalPrice }}</span>
      </div>
      <div class="check__btn">去结算</div>
    </div>
  </div>
</template>

<script>
import { ref, computed } from 'vue'
import { useRoute } from 'vue-router' // 路由跳转方法
import { useStore } from 'vuex' // 路由跳转方法
import { useCommonCartEffect } from './commnCartEffect'

const useCartEffect = shopId => {
  const { changeCartItemInfo } = useCommonCartEffect()
  const store = useStore()

  // 单个勾选或者不勾选
  const changeCartItemChecked = (shopId, productId) => {
    store.commit('changeItemChecked', { shopId, productId })
  }
  // 清除购物车按钮
  const cleanCartProducts = shopId => {
    store.commit('changeCleanCartProducts', { shopId })
  }
  // 购物车全选或者取消全选
  const setCartItemsChecked = shopId => {
    store.commit('setCartItemsChecked', { shopId })
  }

  // 计算shopId下所有cartList的商品数量total、价钱之和totalPrice
  const cartList = store.state.cartList // 加入购物车的商品列表fv
  const total = computed(() => {
    const productList = cartList[shopId]
    let count = 0
    if (productList) {
      for (const i in productList) {
        const product = productList[i]
        count += product.count
      }
    }
    return count
  })
  const totalPrice = computed(() => {
    const productList = cartList[shopId]
    let count = 0
    if (productList) {
      for (const i in productList) {
        const product = productList[i]
        if (product.checked === true) {
          count += product.count * product.price
        }
      }
    }
    return count.toFixed(2) // 保留2位小数
  })

  // 全选的计算属性
  const allChecked = computed(() => {
    const productList = cartList[shopId]
    let result = true
    if (productList) {
      for (const i in productList) {
        const product = productList[i]
        if (product.count > 0 && !product.checked) {
          result = false
          break
        }
      }
    }
    return result
  })

  const productList = computed(() => {
    const productInfoList = cartList[shopId] || [] // 不存在默认空数组
    return productInfoList
  })
  return {
    cartList,
    total,
    totalPrice,
    productList,
    allChecked,
    changeCartItemChecked,
    changeCartItemInfo,
    cleanCartProducts,
    setCartItemsChecked
  }
}

// 展示隐藏购物车
const toggleCartEffect = () => {
  const showCart = ref(false)
  // 显示隐藏购物车具体内容
  const handleCartShowChange = () => {
    showCart.value = !showCart.value
  }
  return { showCart, handleCartShowChange }
}
export default {
  name: 'Cart',
  setup() {
    const route = useRoute()
    const shopId = route.params.id // 店铺id
    // 展示隐藏购物车
    const { showCart, handleCartShowChange } = toggleCartEffect()
    // 计算总价和加入购物车的总数量
    const {
      cartList,
      total,
      totalPrice,
      productList,
      allChecked,
      changeCartItemChecked,
      changeCartItemInfo,
      cleanCartProducts,
      setCartItemsChecked
    } = useCartEffect(shopId)
    return {
      cartList,
      total,
      totalPrice,
      productList,
      shopId,
      allChecked,
      showCart,
      handleCartShowChange,
      changeCartItemChecked,
      changeCartItemInfo,
      cleanCartProducts,
      setCartItemsChecked
    }
  }
}
</script>
<style lang="scss" scoped>
@import '@/style/viriables.scss';
@import '@/style/mixins.scss';
.mask {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  top: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1;
}
.cart {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  background: $bg-color;
}
.product {
  overflow-y: scroll;
  flex: 1;
  background: $bg-color;
  &__header {
    display: flex;
    line-height: 0.52rem;
    border-bottom: 0.01rem solid $content-bg-color;
    font-size: 0.14rem;
    color: $content-font-color;
    &__all {
      width: 0.64rem;
      margin-left: 0.18rem;
      &__icon {
        display: inline-block;
        vertical-align: top;
        font-size: 0.2rem;
        margin-right: 0.05rem;
        color: $btn-bg-color;
      }
      &__text {
        display: inline-block;
        margin-left: 0.04rem;
        line-height: 0.52rem;
      }
    }
    &__clear {
      flex: 1;
      text-align: right;
      margin-right: 0.16rem;
      &__btn {
        display: inline-block;
      }
    }
  }
  &__item {
    position: relative;
    display: flex;
    padding: 0.12rem 0.16rem;
    margin: 0 0.16rem;
    border-bottom: 0.01rem solid $content-bg-color;
    &__checked {
      line-height: 0.5rem;
      margin-right: 0.2rem;
      color: $btn-bg-color;
      i {
        font-size: 0.25rem;
      }
    }
    // 配合解决超出长度以省略号显示而不会出现换行
    &__detail {
      overflow: hidden;
    }
    &__img {
      width: 0.46rem;
      height: 0.46rem;
      margin-right: 0.16rem;
    }
    &__title {
      margin: 0;
      line-height: 0.2rem;
      font-size: 0.14rem;
      color: $content-font-color;
      // 超出长度以省略号显示而不会出现换行
      @include ellipsis;
    }
    &__price {
      margin: 0.06rem 0 0 0;
      line-height: 0.2rem;
      font-size: 0.14rem;
      color: $height-light-font-color;
    }
    &__yen {
      font-size: 0.12rem;
    }
    &__origin {
      margin-left: 0.06rem;
      line-height: 0.2rem;
      font-size: 0.12rem;
      color: $light-font-color;
      text-decoration: line-through; //中划线
    }
    // 购物车选购数量和加减号
    .product__number {
      position: absolute;
      right: 0rem;
      bottom: 0.26rem;
      &__minus,
      &__plus {
        display: inline-block;
        width: 0.2rem;
        height: 0.2rem;
        line-height: 0.16rem;
        border-radius: 50%;
        font-size: 0.2rem;
        text-align: center;
      }
      // 边框白色
      &__minus {
        border: 0.01rem solid $medium-font-color;
        color: $medium-font-color;
        margin-right: 0.05rem;
      }
      //无边框，背景蓝色
      &__plus {
        color: $bg-color;
        background: $btn-bg-color;
        margin-left: 0.05rem;
      }
    }
  }
}
.check {
  display: flex;
  box-sizing: border-box; //往内塞入border
  line-height: 0.49rem;
  height: 0.49rem;
  border-top: 0.01rem solid $content-bg-color;
  &__icon {
    width: 0.84rem;
    position: relative;
    &__img {
      margin: 0.12rem auto;
      display: block;
      width: 0.28rem;
      height: 0.28rem;
    }
    &__tag {
      // 乘以2然后等比例缩小
      position: absolute;
      left: 0.46rem;
      top: 0.04rem;
      padding: 0 0.04rem;
      min-width: 0.2rem;
      height: 0.2rem;
      line-height: 0.2rem;
      text-align: center;
      background-color: $height-light-font-color;
      border-radius: 0.1rem;
      font-size: 0.12rem;
      color: $bg-color;
      transform: scale(0.5);
      transform-origin: left center;
    }
  }
  &__info {
    flex: 1;
    color: $content-font-color;
    font-size: 0.12rem;
    &__price {
      line-height: 0.49rem;
      color: $height-light-font-color;
      font-size: 0.18rem;
    }
  }
  &__btn {
    width: 0.98rem;
    background-color: #4fb0f9;
    text-align: center;
    color: $bg-color;
    font-size: 0.14rem;
  }
}
</style>