medicine-xcx/pages/sort/sort.vue

<template>
	<view class="u-wrap">
		<!-- <view class="u-search-box">
			<view class="u-search-inner">
				<u-icon name="search" color="#909399" :size="28"></u-icon>
				<text class="u-search-text">搜索uView</text>
			</view>
		</view> -->
		<view class="sort-search">
	<!-- 		<u-search 
				v-model="keyword"
				bg-color="#fff" 
				height="80" 
				placeholder="请输入要搜索的商品"  
				:action-style="{color: '#fff'}"
			/> -->
			<u-search disabled placeholder="请输入要搜索的商品" height="70" :show-action="false" @click="handleSearch" />
		</view>
		<view class="u-menu-wrap">
			<scroll-view scroll-y scroll-with-animation class="u-tab-view menu-scroll-view" :scroll-top="scrollTop">
				<view v-for="(item,index) in leftList" :key="index" 
					class="u-tab-item" 
					:class="[current==index ? 'u-tab-item-active' : '']"
					:data-current="index" @tap.stop="swichMenu(index,item.id)"
				>
				 <!-- u-line-1 单行打点无法知道整行的内容 -->
					<text class=".p-l-27">{{item.name}}</text>
				</view>
			</scroll-view>
			
			<view class="position-relative flex-1 right_box_width">
				<view class="right-tabs flex align-center flex-1" v-if="rightTopList.length > 0 && !openShow">
					<scroll-view scroll-with-animation scroll-x class="right-tabs-scroll tab-scroll-view" :scroll-left="scrollLeft">
						<view class="flex align-center">
							<com-view
								v-for="(item, index) in rightTopList" 
								:key="index"
								class="right-tabs-item flex align-center justify-center" 
								:class="[{'right-tabs-item-active': currentTab === index}, `tabs-item-${index}`]"
								@click="handleRightTab(item, index)"
							
							>
							<!-- v-show="index < 2"   只展示两个就好 其他的去点击展开 -->
								{{item.name}}
							</com-view>
						</view>
					</scroll-view>
					<u-icon name="arrow-right"></u-icon>
					<!-- <view class="open flex align-center justify-center" @click="open">
						<text class="font-28 text-black m-r-10">展开</text>	
						<u-icon name="arrow-down" size="28"></u-icon>
					</view> -->
				</view>
				<scroll-view 
					scroll-y 
					@scrolltolower="goodsToLower()"
					class="right-box flex flex-column" 
				>
				<!-- v-if="current==index" 
				v-for="(item,index) in tabbar" :key="index" -->
					<view class="page-view" v-if="rightListGoods.length">
						<view class="class-item">
							<view class="item-container">
								<view class="thumb-box" v-for="(item1, index1) in rightListGoods" :key="index1">
									<!-- <goods-item></goods-item> -->
									<goods-item :goods="item1" thereTo='sort'></goods-item>
								</view>
							</view>
						</view>
					</view>
					<view class="h-100 flex align-center justify-center" v-else-if="!loading">
						<u-empty text="暂无商品 " mode="list"></u-empty>
					</view>
				</scroll-view>
				
				
				<view class="position-absolute left-0 top-0 h-100 zIndex-1" v-show="openShow" style="width: 550rpx;">
					<view class="open-popup" @click="openShow = false"></view>
						<view class="open-box" :style="[openStyle]">
							<view class="flex align-center flex-wrap">
								<com-view
									v-for="(item, index) in rightTopList" 
									:key="index"
									class="right-tabs-item flex align-center justify-center m-t-20" 
									:class="[{'right-tabs-item-active': currentTab === index}, `tabs-item-${index}`]"
									@click="handleRightTab(item, index)"
								>
									{{item.name}}
								</com-view>
							</view>
							<view class="flex align-center justify-end m-t-4" @click="openShow = false">
								<text class="font-28 text-black">收起</text>	
								<u-icon name="arrow-up" size="28"></u-icon>
							</view>
						</view>
					</view>
				</view>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				scrollTop: 0, //tab标题的滚动条位置
				current: 0, // 预设当前项的值
				menuHeight: 0, // 左边菜单的高度
				menuItemHeight: 0, // 左边菜单item的高度
				keyword: '',
				currentTab: 0,
				scrollLeft: 0, 
				tabWidth: 0, // 左边菜单的高度
				tabItemWidth: 0, // 左边菜单item的高度
				tabItemLeft: 0,
				openShow: false,
				openStyle: {},
				leftList: [],
				rightTopList: [], // 右上展示的值
				rightListGoods: [],  // 右边展示商品
				classId: '',
				hasChild: null,  //是否还有下级   -> 有没有右上角标签
				pageNo: 1,
				pageSize: 10,
				total: null,
				isLock: true,
				loading: true
			}
		},
		watch: {
			openShow () {
				this.$nextTick(() => {
					this.openStyle = this.openShow ? {transform: 'translateY(0)'} : {transform: 'translateY(-100%)'}
				})
			}
		},
		onLoad() {
			this.loading = true
			this.getGoodsClassList();
			this.getRightListGoods();
		},
		onPullDownRefresh() {
			this.leftList = []
			this.rightTopList = [] // 右上展示的值
			this.rightListGoods = []
			this.pageNo = 1
			this.pageSize = 10
			this.total = null,
			this.getGoodsClassList();
			this.getRightListGoods();
			this.loading = true
		},
		methods: {
			open () {
				this.openShow = true
			},
			async handleRightTab (item, index) {
				if(index == this.currentTab) return ;
					this.currentTab = index
					//  点击调用商品 hasChild = 0
					// 
					this.hasChild = 0;
					this.classId = item.id
					this.rightListGoods = []
					this.loading = true
					this.getRightListGoods();
					// this.tabScrollView = `tabs-item-${index}`
					// // 如果为0，意味着尚未初始化
					if(this.tabWidth == 0 || this.tabItemWidth == 0) {
						await this.getElRect('tab-scroll-view', 'tabWidth', 'width');
					}
						await this.getElRect(`tabs-item-${index}`, 'tabItemWidth', 'width')
						await this.getscrollLeft(`tabs-item-${index}`, 'tabItemLeft')
					this.scrollLeft = this.tabItemLeft - this.tabWidth / 2 - this.tabItemWidth / 2;
					// this.scrollLeft = index * this.tabItemWidth - this.tabWidth / 2 - this.tabItemWidth / 2;
					
			},
			getImg() {
				return Math.floor(Math.random() * 35);
			},
			// 点击左边的栏目切换
			async swichMenu(index,id) {
				if(index == this.current) return ;
				this.current = index;
				
				// 如果为0，意味着尚未初始化
				if(this.menuHeight == 0 || this.menuItemHeight == 0) {
					await this.getElRect('menu-scroll-view', 'menuHeight');
					await this.getElRect('u-tab-item', 'menuItemHeight');
				}
				// 将菜单菜单活动item垂直居中
				this.scrollTop = index * this.menuItemHeight + this.menuItemHeight / 2 - this.menuHeight / 2;
				this.classId = id;
				// 切换菜单重置 商品信息
				this.pageNo = 1;
				this.total = null;
				this.rightTopList = [];
				this.rightListGoods = [];
				this.loading = true
				this.getGoodsClassList();
				this.getRightListGoods();
			},
			// 获取一个目标元素的高度
			getElRect(elClass, dataVal, attribute = 'height') {
				return new Promise((resolve, reject) => {
					const query = uni.createSelectorQuery().in(this);
					query.select('.' + elClass).fields({size: true}, res => {
						console.log(elClass, res)
						// 如果节点尚未生成，res值为null，循环调用执行
						if(!res) {
							setTimeout(() => {
								this.getElRect(elClass);
							}, 10);
							return ;
						}
						// this[dataVal] = !other ? res[attribute] : res[other]
						this[dataVal] = res[attribute]
						resolve()
					}).exec();
				})
			},
			handleSearch () {
				this.$tools.navigateTo({
					url: '/pagesC/search/search'
				})
			},
			getscrollLeft(elClass, dataVal) {
				return new Promise((resolve, reject) => {
					const query = uni.createSelectorQuery().in(this);
					query.select('.' + elClass).fields({size: true, scrollOffset: true}, res => {
						console.log(res)
						if(!res) {
							setTimeout(() => {
								this.getscrollLeft(elClass);
							}, 10);
							return ;
						}
						this[dataVal] = res.scrollLeft
						resolve()
					}).exec();
				})
			},
			getGoodsClassList() {
				let params = {}
				if(this.leftList.length == 0) {
				}else{
					params = {
						classId: this.classId
					}
				}
				if (this.current == 0) {
					params = {
						classId: '',
						hasChild: ''
					}
				}
				
				this.$api('getGoodsClassList',params).then(res => {
					let { code, result, message } = res;
					if(code == 200) {
						console.log(result);
						if(this.classId == ''){
							this.classId = result[0].id;
							this.hasChild = result[0].hasChild;
							this.leftList = [{name: '全部',id: ''},...result]
							// this.getGoodsClassList(); // 获取
						}else{
							this.rightTopList = result;  // 得到的是右上的值
						}
					}else {
						this.$Toast(message);
					}
				}).catch(err => {
					this.$Toast(err.message)
				})
			},
			goodsToLower() {
				if(this.isLock) {
					if(this.total !== null && this.pageNo * this.pageSize >= this.total){
						this.isLock = false;
						this.$Toast('没有更多数据了哦！');
						setTimeout(()=>{
							this.isLock = true;
						},3000)
						return
					}
					this.pageNo+=1;
					this.getRightListGoods();
				}
			},
			getRightListGoods() {
				const params = {
					pageNo: this.pageNo,
					pageSize: this.pageSize,
				}
				if(this.current == 0) {
					
				}else{
					params.classId = this.classId
					params.hasChild = this.hasChild
				}
				uni.showLoading();
				this.$api('getGoodsList',params).then(res => {
					let { code, result, message} = res;
					uni.hideLoading();
					console.log(result)
					this.loading = false
					if(code == 200){
						if(this.total == null) {
							this.total = result.total;
						}
						result.records.forEach(item => {
							// const picArray= item.pic.split(',')
							// item.pic= picArray[0]
							if(item.pic!==null){
								const picArray=item.pic.split(',')
								item.pic= picArray[0]
							}else{
								item.pic=  []
							}
						})
						this.rightListGoods =  this.rightListGoods.concat(result.records);
					}else{
						this.$Toast(message);
					}
					this.isLock = true;
				}).catch( err => {
					this.loading = false
					this.isLock = true;
					uni.hideLoading();
					this.$Toast(err.message);
				})
			}
		}
	}
</script>

<style lang="scss" scoped>
	// 穿透图片 设置大小
	// /deep/.goods-items-image{
	// 	width: 522rpx !important;
	// }
	
	.u-wrap {
		height: calc(100vh);
		/* #ifdef H5 */
		height: calc(100vh - var(--window-top));
		/* #endif */
		display: flex;
		flex-direction: column;
	}

	.sort-search {
		padding: 0 20rpx 20rpx;
		background: $u-type-primary;
	}
	.u-search-box {
		padding: 18rpx 30rpx;
	}

	.u-menu-wrap {
		flex: 1;
		display: flex;
		overflow: hidden;
	}
	.right_box_width{
		// width: 550rpx;
	}

	.u-search-inner {
		background-color: rgb(234, 234, 234);
		border-radius: 100rpx;
		display: flex;
		align-items: center;
		padding: 10rpx 16rpx;
	}

	.u-search-text {
		font-size: 26rpx;
		color: $u-tips-color;
		margin-left: 10rpx;
	}

	.u-tab-view {
		width: 200rpx;
		height: 100%;
	}

	.u-tab-item {
		width: 200rpx;
		height: 110rpx;
		background: #f6f6f6;
		box-sizing: border-box;
		display: flex;
		align-items: center;
		justify-content: center;
		font-size: 26rpx;
		color: #444;
		font-weight: 400;
		line-height: 1;
	}
	
	.u-tab-item-active {
		position: relative;
		color: #000;
		font-size: 30rpx;
		font-weight: 600;
		background: #fff;
	}
	
	.u-tab-item-active::before {
		content: "";
		position: absolute;
		border-left: 4px solid $u-type-primary;
		height: 32rpx;
		left: 0;
		top: 39rpx;
	}

	.u-tab-view {
		height: 100%;
	}
	
	.open {
		width: 140rpx;
		height: 80rpx;
	}
	
	.right-tabs-scroll {
		width: calc(100vw - 240rpx);
		white-space: nowrap;
	}
	
	.right-tabs {
		height: 80rpx;
		&-item {
			height: 50rpx;
			padding: 0 20rpx;
			background: #eeeeee;
			border-radius: 18px;
			margin-left: 30rpx;
			font-size: 24rpx;
			font-family: Microsoft YaHei, Microsoft YaHei-Regular;
			color: #000000;
			&-active {
				background: #baebfc;
				color: $u-type-primary;
			}
		}
	}
	
	.right-box {
		height: calc(100vh - 180rpx);
		background-color: rgb(250, 250, 250);
	}
	
	.page-view {
		padding: 16rpx;
	}
	
	.class-item {
		margin-bottom: 30rpx;
		background-color: #fff;
		padding: 16rpx;
		border-radius: 8rpx;
	}
	
	.item-title {
		font-size: 26rpx;
		color: $u-main-color;
		font-weight: bold;
	}
	
	.item-menu-name {
		font-weight: normal;
		font-size: 24rpx;
		color: $u-main-color;
	}
	
	.item-container {
		display: flex;
		flex-wrap: wrap;
	}
	
	.thumb-box {
		margin-top: 20rpx;
		width: 100%;
	}
	
	.item-menu-image {
		width: 120rpx;
		height: 120rpx;
	}
	
	.open {
		width: 100%;
		&-popup{
			position: absolute;
			width: 100%;
			height: 100%;
			background-color: rgba(0, 0, 0, .6);
			z-index: 0;
		}
		&-box {
			position: relative;
			background-color: #fff;
			padding: 0 20rpx 10rpx 0;
			z-index: 1;
			transition: all .4s linear;
			transform: translateY(-100%);
		}
	} 
</style>