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<template>
<view class="container">
<!-- 空白页 -->
<view v-if="!hasLogin || empty===true" class="empty">
<image src="/static/emptyCart.jpg" mode="aspectFit"></image>
<view v-if="hasLogin" class="empty-tips">
空空如也
<navigator class="navigator" v-if="hasLogin" url="../index/index" open-type="switchTab">便></navigator>
</view>
<view v-else class="empty-tips">
空空如也
<view class="navigator" @click="navToLogin">></view>
</view>
</view>
<view v-else>
<!-- 列表 -->
<view class="cart-list">
<block v-for="(item, index) in cartList" :key="item.id">
<view class="cart-item" :class="{'b-b': index!==cartList.length-1}">
<view class="image-wrapper">
<image :src="item.productPic" :class="[item.loaded]" mode="aspectFill" lazy-load @load="onImageLoad('cartList', index)"
@error="onImageError('cartList', index)"></image>
<view class="yticon icon-xuanzhong2 checkbox" :class="{checked: item.checked}" @click="check('item', index)"></view>
</view>
<view class="item-right">
<text class="clamp title">{{item.productName}}</text>
<text class="attr">{{item.spDataStr}}</text>
<text class="price">¥{{item.price}}</text>
<uni-number-box class="step" :min="1" :max="100" :value="item.quantity" :index="index" @eventChange="numberChange"></uni-number-box>
</view>
<text class="del-btn yticon icon-fork" @click="handleDeleteCartItem(index)"></text>
</view>
</block>
</view>
<!-- 底部菜单栏 -->
<view class="action-section">
<view class="checkbox">
<image :src="allChecked?'/static/selected.png':'/static/select.png'" mode="aspectFit" @click="check('all')"></image>
<view class="clear-btn" :class="{show: allChecked}" @click="clearCart">
清空
</view>
</view>
<view class="total-box">
<text class="price">¥{{total}}</text>
</view>
<button type="primary" class="no-border confirm-btn" @click="createOrder"></button>
</view>
</view>
</view>
</template>
<script>
import {
mapState
} from 'vuex';
import uniNumberBox from '@/components/uni-number-box.vue';
import {
fetchCartList,
deletCartItem,
updateQuantity,
clearCartList
} from '@/api/cart.js';
export default {
components: {
uniNumberBox
},
data() {
return {
total: 0, //总价格
allChecked: false, //全选状态 true|false
empty: false, //空白页现实 true|false
cartList: [],
};
},
onLoad() {
// this.loadData();
},
onShow(){
//页面显示时重新加载购物车
this.loadData();
},
watch: {
//显示空白页
cartList(e) {
let empty = e.length === 0 ? true : false;
if (this.empty !== empty) {
this.empty = empty;
}
}
},
computed: {
...mapState(['hasLogin'])
},
methods: {
//请求数据
async loadData() {
if(!this.hasLogin){
return;
}
fetchCartList().then(response => {
let list = response.data;
let cartList = list.map(item => {
item.checked = true;
item.loaded = "loaded";
let spDataArr = JSON.parse(item.productAttr);
let spDataStr = '';
for (let attr of spDataArr) {
spDataStr += attr.key;
spDataStr += ":";
spDataStr += attr.value;
spDataStr += ";";
}
item.spDataStr = spDataStr;
return item;
});
this.cartList = cartList;
this.calcTotal(); //计算总价
});
},
//监听image加载完成
onImageLoad(key, index) {
this.$set(this[key][index], 'loaded', 'loaded');
},
//监听image加载失败
onImageError(key, index) {
this[key][index].productPic = '/static/errorImage.jpg';
},
navToLogin() {
uni.navigateTo({
url: '/pages/public/login'
})
},
//选中状态处理
check(type, index) {
if (type === 'item') {
this.cartList[index].checked = !this.cartList[index].checked;
} else {
const checked = !this.allChecked
const list = this.cartList;
list.forEach(item => {
item.checked = checked;
})
this.allChecked = checked;
}
this.calcTotal(type);
},
//数量
numberChange(data) {
let cartItem = this.cartList[data.index];
updateQuantity({id:cartItem.id,quantity:data.number}).then(response=>{
cartItem.quantity = data.number;
this.calcTotal();
});
},
//删除
handleDeleteCartItem(index) {
let list = this.cartList;
let row = list[index];
let id = row.id;
deletCartItem({ids:id}).then(response=>{
this.cartList.splice(index, 1);
this.calcTotal();
uni.hideLoading();
});
},
//清空
clearCart() {
clearCartList().then(response=>{
uni.showModal({
content: '清空购物车?',
success: (e) => {
if (e.confirm) {
this.cartList = [];
}
}
})
});
},
//计算总价
calcTotal() {
let list = this.cartList;
if (list.length === 0) {
this.empty = true;
return;
}
let total = 0;
let checked = true;
list.forEach(item => {
if (item.checked === true) {
total += item.price * item.quantity;
} else if (checked === true) {
checked = false;
}
})
this.allChecked = checked;
this.total = Number(total.toFixed(2));
},
//创建订单
createOrder() {
let list = this.cartList;
let cartIds = [];
list.forEach(item => {
if (item.checked) {
cartIds.push(item.id);
}
})
if(cartIds.length==0){
uni.showToast({
title:'您还未选择要下单的商品!',
duration:1000
})
return;
}
uni.navigateTo({
url: `/pages/order/createOrder?cartIds=${JSON.stringify(cartIds)}`
})
}
}
}
</script>
<style lang='scss'>
.container {
padding-bottom: 134upx;
/* 空白页 */
.empty {
position: fixed;
left: 0;
top: 0;
width: 100%;
height: 100vh;
padding-bottom: 100upx;
display: flex;
justify-content: center;
flex-direction: column;
align-items: center;
background: #fff;
image {
width: 240upx;
height: 160upx;
margin-bottom: 30upx;
}
.empty-tips {
display: flex;
font-size: $font-sm+2upx;
color: $font-color-disabled;
.navigator {
color: $uni-color-primary;
margin-left: 16upx;
}
}
}
}
/* 购物车列表项 */
.cart-item {
display: flex;
position: relative;
padding: 30upx 40upx;
.image-wrapper {
width: 230upx;
height: 230upx;
flex-shrink: 0;
position: relative;
image {
border-radius: 8upx;
}
}
.checkbox {
position: absolute;
left: -16upx;
top: -16upx;
z-index: 8;
font-size: 44upx;
line-height: 1;
padding: 4upx;
color: $font-color-disabled;
background: #fff;
border-radius: 50px;
}
.item-right {
display: flex;
flex-direction: column;
flex: 1;
overflow: hidden;
position: relative;
padding-left: 30upx;
.title,
.price {
font-size: $font-base + 2upx;
color: $font-color-dark;
height: 40upx;
line-height: 40upx;
}
.attr {
font-size: $font-sm + 2upx;
color: $font-color-light;
height: 50upx;
line-height: 50upx;
}
.price {
height: 50upx;
line-height: 50upx;
}
}
.del-btn {
padding: 4upx 10upx;
font-size: 34upx;
height: 50upx;
color: $font-color-light;
}
}
/* 底部栏 */
.action-section {
/* #ifdef H5 */
margin-bottom: 100upx;
/* #endif */
position: fixed;
left: 30upx;
bottom: 30upx;
z-index: 95;
display: flex;
align-items: center;
width: 690upx;
height: 100upx;
padding: 0 30upx;
background: rgba(255, 255, 255, .9);
box-shadow: 0 0 20upx 0 rgba(0, 0, 0, .5);
border-radius: 16upx;
.checkbox {
height: 52upx;
position: relative;
image {
width: 52upx;
height: 100%;
position: relative;
z-index: 5;
}
}
.clear-btn {
position: absolute;
left: 26upx;
top: 0;
z-index: 4;
width: 0;
height: 52upx;
line-height: 52upx;
padding-left: 38upx;
font-size: $font-base;
color: #fff;
background: $font-color-disabled;
border-radius: 0 50px 50px 0;
opacity: 0;
transition: .2s;
&.show {
opacity: 1;
width: 120upx;
}
}
.total-box {
flex: 1;
display: flex;
flex-direction: column;
text-align: right;
padding-right: 40upx;
.price {
font-size: $font-lg;
color: $font-color-dark;
}
.coupon {
font-size: $font-sm;
color: $font-color-light;
text {
color: $font-color-dark;
}
}
}
.confirm-btn {
padding: 0 38upx;
margin: 0;
border-radius: 100px;
height: 76upx;
line-height: 76upx;
font-size: $font-base + 2upx;
background: $uni-color-primary;
box-shadow: 1px 2px 5px rgba(217, 60, 93, 0.72)
}
}
/* 复选框选中状态 */
.action-section .checkbox.checked,
.cart-item .checkbox.checked {
color: $uni-color-primary;
}
</style>