505 lines
13 KiB
Vue
505 lines
13 KiB
Vue
<template>
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<view class="container" :style="appThemeStyle">
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<!-- 页面顶部 -->
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<view v-if="list.length" class="head-info">
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<view class="cart-total">
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<text>共</text>
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<text class="active">{{ total }}</text>
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<text>件商品</text>
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</view>
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<view class="cart-edit" @click="handleToggleMode()">
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<view v-if="mode == 'normal'" class="normal">
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<text class="icon iconfont icon-bianji"></text>
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<text>编辑</text>
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</view>
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<view v-if="mode == 'edit'" class="edit">
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<text>完成</text>
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</view>
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</view>
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</view>
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<!-- 购物车商品列表 -->
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<view v-if="list.length" class="cart-list">
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<view class="cart-item" v-for="(item, index) in list" :key="index">
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<view class="item-radio" @click="handleCheckItem(item.id)">
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<u-checkbox :modelValue="inArray(item.id, checkedIds)" shape="circle" :activeColor="appTheme.mainBg" />
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</view>
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<view class="goods-image" @click="onTargetGoods(item.goods_id)">
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<image class="image" :src="item.goods.goods_image" mode="scaleToFill"></image>
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</view>
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<view class="item-content">
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<view class="goods-title" @click="onTargetGoods(item.goods_id)">
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<text class="twoline-hide">{{ item.goods.goods_name }}</text>
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</view>
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<view class="goods-props clearfix">
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<view class="goods-props-item" v-for="(props, idx) in item.goods.skuInfo.goods_props" :key="idx">
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<text>{{ props.value.name }}</text>
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</view>
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</view>
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<view class="item-foot">
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<view class="goods-price">
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<text class="unit">￥</text>
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<text class="value">{{ item.goods.skuInfo.goods_price }}</text>
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</view>
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<view class="stepper">
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<u-number-box :min="1" :modelValue="item.goods_num" :step="1" @change="onChangeStepper($event, item)" />
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</view>
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</view>
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</view>
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</view>
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</view>
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<!-- 购物车数据为空 -->
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<empty v-if="!list.length" :isLoading="isLoading" :custom-style="{ padding: '180rpx 50rpx' }" tips="您的购物车是空的, 快去逛逛吧">
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<template v-slot:slot>
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<view class="empty-ipt" @click="onTargetIndex()">
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<text>去逛逛</text>
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</view>
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</template>
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</empty>
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<!-- 底部操作栏 -->
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<view v-if="list.length" class="footer-fixed">
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<view class="all-radio">
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<u-checkbox :modelValue="checkedIds.length > 0 && checkedIds.length === list.length" shape="circle" :activeColor="appTheme.mainBg"
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@change="handleCheckAll()">全选</u-checkbox>
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</view>
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<view class="total-info">
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<text>合计：</text>
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<view class="goods-price">
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<text class="unit">￥</text>
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<text class="value">{{ totalPrice }}</text>
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</view>
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</view>
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<view class="cart-action">
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<view class="btn-wrapper">
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<!-- dev:下面的disabled条件使用checkedIds.join方式判断 -->
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<!-- dev:通常情况下vue项目使用checkedIds.length更合理, 但是length属性在微信小程序中不起作用 -->
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<view v-if="mode == 'normal'" class="btn-item btn-main" :class="{ disabled: checkedIds.join() == '' }" @click="handleOrder()">
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<text>去结算</text>
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<!-- <text>去结算 {{ checkedIds.length > 0 ? `(${total})` : '' }}</text> -->
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</view>
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<view v-if="mode == 'edit'" class="btn-item btn-main" :class="{ disabled: !checkedIds.length }" @click="handleDelete()">
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<text>删除</text>
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</view>
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</view>
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</view>
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</view>
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</view>
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</template>
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<script>
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import Empty from '@/components/empty'
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import { inArray, arrayIntersect, debounce } from '@/utils/util'
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import { checkLogin, setCartTotalNum, setCartTabBadge } from '@/core/app'
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import * as CartApi from '@/api/cart'
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const CartIdsIndex = 'CartIds'
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export default {
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components: {
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Empty
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},
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data() {
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return {
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inArray,
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// 正在加载
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isLoading: true,
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// 当前模式: normal正常 edit编辑
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mode: 'normal',
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// 购物车商品列表
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list: [],
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// 购物车商品总数量
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total: null,
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// 选中的商品ID记录
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checkedIds: [],
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// 选中的商品总金额
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totalPrice: '0.00'
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}
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},
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watch: {
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// 监听选中的商品
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checkedIds: {
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handler(val) {
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// 计算合计金额
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this.onCalcTotalPrice()
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// 记录到缓存中
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uni.setStorageSync(CartIdsIndex, val)
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},
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deep: true,
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immediate: false
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},
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// 监听购物车商品总数量
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total(val) {
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// 缓存并设置角标
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setCartTotalNum(val)
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setCartTabBadge()
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}
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},
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/**
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* 生命周期函数--监听页面显示
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*/
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onShow() {
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// 获取缓存中的选中记录
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this.checkedIds = uni.getStorageSync(CartIdsIndex)
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// 获取购物车商品列表
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checkLogin() ? this.getCartList() : this.isLoading = false
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},
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methods: {
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// 计算合计金额 (根据选中的商品)
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onCalcTotalPrice() {
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const app = this
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// 选中的商品记录
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const checkedList = app.list.filter(item => inArray(item.id, app.checkedIds))
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// 计算总金额
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let tempPrice = 0;
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checkedList.forEach(item => {
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// 商品单价, 为了方便计算先转换单位为分 (整数)
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const unitPrice = item.goods.skuInfo.goods_price * 100
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tempPrice += unitPrice * item.goods_num
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})
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app.totalPrice = (tempPrice / 100).toFixed(2)
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},
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// 获取购物车商品列表
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getCartList() {
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const app = this
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app.isLoading = true
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CartApi.list()
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.then(result => {
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app.list = result.data.list
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app.total = result.data.cartTotal
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// 清除checkedIds中无效的ID
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app.onClearInvalidId()
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})
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.finally(() => app.isLoading = false)
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},
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// 清除checkedIds中无效的ID
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onClearInvalidId() {
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const app = this
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const listIds = app.list.map(item => item.id)
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app.checkedIds = arrayIntersect(listIds, app.checkedIds)
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},
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// 切换当前模式
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handleToggleMode() {
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this.mode = this.mode == 'normal' ? 'edit' : 'normal'
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},
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// 监听步进器更改事件
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onChangeStepper({ value }, item) {
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// 这里是组织首次启动时的执行
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if (item.goods_num == value) return
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// 记录一个节流函数句柄
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if (!item.debounceHandle) {
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item.oldValue = item.goods_num
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item.debounceHandle = debounce(this.onUpdateCartNum, 500)
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}
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// 更新商品数量
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item.goods_num = value
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// 提交更新购物车数量 (节流)
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item.debounceHandle(item, item.oldValue, value)
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},
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// 提交更新购物车数量
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onUpdateCartNum(item, oldValue, newValue) {
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const app = this
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CartApi.update(item.goods_id, item.goods_sku_id, newValue)
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.then(result => {
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// 更新商品数量
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app.total = result.data.cartTotal
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// 重新计算合计金额
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app.onCalcTotalPrice()
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// 清除节流函数句柄
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item.debounceHandle = null
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})
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.catch(err => {
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// 还原商品数量
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item.goods_num = oldValue
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setTimeout(() => app.$toast(err.errMsg), 10)
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})
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},
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// 跳转到商品详情页
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onTargetGoods(goodsId) {
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this.$navTo('pages/goods/detail', { goodsId })
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},
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// 点击去逛逛按钮, 跳转到首页
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onTargetIndex() {
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this.$navTo('pages/index/index')
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},
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// 选中商品
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handleCheckItem(cartId) {
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const { checkedIds } = this
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const index = checkedIds.findIndex(id => id === cartId)
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index < 0 ? checkedIds.push(cartId) : checkedIds.splice(index, 1)
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},
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// 全选事件
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handleCheckAll() {
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const { checkedIds, list } = this
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this.checkedIds = checkedIds.length === list.length ? [] : list.map(item => item.id)
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},
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// 结算选中的商品
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handleOrder() {
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const app = this
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if (app.checkedIds.length) {
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const cartIds = app.checkedIds.join()
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app.$navTo('pages/checkout/index', { mode: 'cart', cartIds })
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}
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},
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// 删除选中的商品弹窗事件
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handleDelete() {
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const app = this
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if (!app.checkedIds.length) {
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return false
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}
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uni.showModal({
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title: '友情提示',
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content: '您确定要删除该商品吗？',
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showCancel: true,
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success({ confirm }) {
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// 确认删除
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confirm && app.onClearCart()
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}
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})
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},
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// 确认删除商品
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onClearCart() {
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const app = this
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CartApi.clear(app.checkedIds)
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.then(result => {
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app.getCartList()
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app.handleToggleMode()
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})
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}
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}
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}
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</script>
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<style>
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page {
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background: #f5f5f5;
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}
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</style>
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<style lang="scss" scoped>
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.container {
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padding-bottom: 120rpx;
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}
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// 页面顶部
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.head-info {
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display: flex;
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justify-content: space-between;
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align-items: center;
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padding: 4rpx 30rpx;
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// background-color: #fff;
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height: 80rpx;
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.cart-total {
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font-size: 28rpx;
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color: #333;
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.active {
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color: $main-bg;
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margin: 0 2rpx;
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}
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}
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.cart-edit {
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padding-left: 20rpx;
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.icon {
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margin-right: 12rpx;
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}
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.edit {
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color: $main-bg;
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}
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}
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}
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// 购物车列表
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.cart-list {
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padding: 0 16rpx 0 16rpx;
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}
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.cart-item {
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background: #fff;
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border-radius: 12rpx;
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display: flex;
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align-items: center;
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padding: 30rpx 16rpx;
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margin-bottom: 24rpx;
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.item-radio {
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width: 56rpx;
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height: 80rpx;
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margin-right: 10rpx;
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display: flex;
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justify-content: center;
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align-items: center;
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}
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.goods-image {
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width: 200rpx;
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height: 200rpx;
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.image {
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display: block;
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width: 100%;
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height: 100%;
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border-radius: 8rpx;
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}
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}
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.item-content {
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flex: 1;
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padding-left: 24rpx;
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.goods-title {
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font-size: 28rpx;
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max-height: 76rpx;
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}
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.goods-props {
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margin-top: 14rpx;
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color: #ababab;
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font-size: 24rpx;
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overflow: hidden;
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.goods-props-item {
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padding: 4rpx 16rpx;
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border-radius: 12rpx;
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background-color: #fcfcfc;
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}
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}
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.item-foot {
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display: flex;
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justify-content: space-between;
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align-items: center;
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margin-top: 20rpx;
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.goods-price {
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vertical-align: bottom;
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color: $main-bg;
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.unit {
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font-size: 24rpx;
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}
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.value {
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font-size: 32rpx;
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}
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}
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}
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}
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}
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// 空数据按钮
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.empty-ipt {
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margin: 0 auto;
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width: 250rpx;
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height: 70rpx;
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font-size: 32rpx;
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text-align: center;
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color: #fff;
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border-radius: 50rpx;
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background: linear-gradient(to right, $main-bg, $main-bg2);
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color: $main-text;
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display: flex;
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justify-content: center;
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align-items: center;
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}
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// 底部操作栏
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.footer-fixed {
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display: flex;
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align-items: center;
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height: 96rpx;
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background: #fff;
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padding: 0 30rpx;
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position: fixed;
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bottom: var(--window-bottom);
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left: var(--window-left);
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right: var(--window-right);
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z-index: 11;
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.all-radio {
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width: 140rpx;
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display: flex;
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align-items: center;
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.radio {
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margin-bottom: -4rpx;
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transform: scale(0.76)
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}
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}
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.total-info {
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flex: 1;
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display: flex;
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align-items: center;
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justify-content: flex-end;
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padding-right: 30rpx;
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.goods-price {
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vertical-align: bottom;
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color: $main-bg;
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.unit {
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font-size: 24rpx;
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}
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.value {
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font-size: 32rpx;
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}
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}
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}
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.cart-action {
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width: 200rpx;
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.btn-wrapper {
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height: 100%;
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display: flex;
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align-items: center;
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}
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.btn-item {
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flex: 1;
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font-size: 28rpx;
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height: 72rpx;
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color: #fff;
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border-radius: 50rpx;
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display: flex;
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justify-content: center;
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align-items: center;
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}
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// 去结算按钮
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.btn-main {
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background: linear-gradient(to right, $main-bg, $main-bg2);
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color: $main-text;
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// 禁用按钮
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&.disabled {
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opacity: 0.6;
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}
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}
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}
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}
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</style> |