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407
pagesCreateOrder/index/index - 副本.vue
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407
pagesCreateOrder/index/index - 副本.vue
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<template>
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<view class="u-flex u-flex-col u-row-between page">
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<view class="top bg-fff w-full">
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<view class="u-flex u-row-between choose-user" @tap="chooseUser">
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<view>选择用户</view>
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<view class="u-flex">
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<uni-icons type="right" size="20" color="#999"></uni-icons>
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</view>
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</view>
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<view class="search u-flex u-col-center ">
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<view class="u-flex-1">
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<uni-search-bar bgColor="#F9F9F9" cancelButton="none" placeholder="搜索店内商品" @confirm="search"
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:focus="true" v-model="searchValue">
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</uni-search-bar>
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</view>
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<view class="u-flex">
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<image src="/pagesCreateOrder/static/images/icon-saoma.svg" class="icon-saoma" mode=""></image>
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</view>
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</view>
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</view>
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<view class="list u-flex w-full u-flex-1">
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<view class="category u-flex" :style="computedCatrgoryStyle">
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<scroll-view scroll-with-animation class="scroll-view_style menu-scroll-view" :scroll-into-view="category.intoviewId"
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scroll-y="true" :scroll-top="category.scrollTop" :style="{height:listHeight+'px'}">
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<view>
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<view :id="'category'+index" class="item u-tab-item" @tap="changeCategoryActive(index)"
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:class="{active:index==category.active}" v-for="(item,index) in category.list" :key="index">
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{{item.title}}
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</view>
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</view>
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</scroll-view>
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</view>
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<view class="goods-list u-flex-1 u-p-l-24">
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<scroll-view @scroll="goodsScroll" scroll-with-animation class="scroll-view_style"
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:scroll-top="goods.scrollTop" :scroll-into-view="goods.intoviewId" scroll-y="true"
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:style="{height:listHeight+'px'}">
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<view class="">
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<view class="item" :class="{active:index==category.active}" v-for="(item,index) in goods.list"
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:key="index">
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<view class="color-main">{{item.title}}</view>
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<view class="u-m-t-24 u-m-b-24 u-flex u-flex-wrap">
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<view :id="'goods'+index" class="u-m-r-24 u-m-b-24 class-item"
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v-for="(goodsItem,goodsIndex) in item.list" :key="goodsIndex">
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<goods-item @chooseGuige="chooseGuige($event,index)" @add="goodsAdd($event,index)" @reduce="goodsReduce($event,index)"
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:index="goodsIndex" :data="goodsItem"></goods-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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</scroll-view>
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</view>
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</view>
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<view class="bottom w-full">
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<my-car :data="cars"></my-car>
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</view>
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<!-- 选择规格 -->
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<my-model ref="guigeModel" :title="guigeModelData.title">
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<template #desc>
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<view v-for="(item,index) in guigeModelData.chooseGoods.skus" :key="index">
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</view>
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</template>
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</my-model>
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</view>
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</template>
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<script setup>
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import {
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onLoad,
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onReady,
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onShow,
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onPageScroll,
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onPullDownRefresh
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} from '@dcloudio/uni-app';
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import myModel from '@/components/my-components/my-model.vue'
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import {
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computed,
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reactive,
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ref,nextTick
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} from 'vue';
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import myCar from './components/car'
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import goodsItem from './components/goods-item'
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const guigeModel=ref(null)
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const guigeModelData=reactive({
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title:'',
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chooseGoods:{
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skus:[{
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title:'',
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skds:[]
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}]
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}
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})
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function chooseGuige(listindex, index){
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const $goods=goods.list[index].list[listindex]
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guigeModelData.title=$goods.title
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guigeModel.value.open()
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}
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let searchValue = ref('')
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const categoryArr = new Array(20).fill(1).map((v, index) => {
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if (index % 2 === 0) {
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return {
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title: '围炉茶煮'
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}
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} else {
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return {
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title: '主食'
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}
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}
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})
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let pageHeight = ref(0)
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const category = reactive({
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list: categoryArr,
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active: 0,
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height: 0,
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top: 0,
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bottom: 0,
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statusbarHeight: 0,
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intoviewId: '',
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scrollTop: 0
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})
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const goodslist = new Array(20).fill(1).map((v, index) => {
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if (index % 2 === 0) {
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return {
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title: '围炉茶煮' + index,
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list: new Array(10).fill(1).map((g, gIndex) => {
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return {
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id:gIndex,
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title: '拿铁咖啡' + gIndex,
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price: 28,
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isDan: gIndex % 2 == 0,
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chooseNumber: 0
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}
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})
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}
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} else {
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return {
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title: '主食' + index,
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list: new Array(10).fill(1).map((g, gIndex) => {
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return {
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id:10000+gIndex,
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title: '意大利面' + gIndex,
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price: 28,
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isDan: gIndex % 2 == 0,
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chooseNumber: 0
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}
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})
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}
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}
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})
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let goods = reactive({
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intoviewId: '',
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scrollTop: 0,
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list: goodslist
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})
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const cars=reactive([])
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function chooseUser() {
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goods.intoviewId = 'goods' + 5
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}
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function goodsAdd(listindex, index) {
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const $goods=goods.list[index].list[listindex]
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const newval =$goods.chooseNumber + 1
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$goods.chooseNumber = newval
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let item=cars.find(v=>v.id==$goods.id)
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if(item){
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item.number+=1
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}else{
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cars.push({...$goods,number:1})
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}
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}
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function goodsReduce(listindex, index) {
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const $goods = goods.list[index].list[listindex]
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const newval = $goods.chooseNumber - 1
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$goods.chooseNumber = newval <= 0 ? 0 : newval
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}
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async function changeCategoryActive(index) {
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if(rightArr.length == 0) {
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await getMenuItemTop();
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}
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if (index == category.active) return;
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goods.scrollTop =oldScrollTop;
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nextTick (function(){
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goods.scrollTop = rightArr[index];
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category.active = index;
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leftMenuStatus(index);
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})
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}
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let oldScrollTop=0;
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let rightArr=[]
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// 获取右边菜单每个item到顶部的距离
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function getMenuItemTop() {
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new Promise(resolve => {
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let selectorQuery = uni.createSelectorQuery();
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selectorQuery.selectAll('.class-item').boundingClientRect((rects) => {
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// 如果节点尚未生成，rects值为[](因为用selectAll，所以返回的是数组)，循环调用执行
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if(!rects.length) {
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setTimeout(() => {
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getMenuItemTop();
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}, 10);
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return ;
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}
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rects.forEach((rect) => {
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// 这里减去rects[0].top，是因为第一项顶部可能不是贴到导航栏(比如有个搜索框的情况)
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rightArr.push(rect.top - rects[0].top);
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resolve();
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})
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}).exec()
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})
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}
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let timer=null
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let menuHeight=0 // 左边菜单的高度
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// 获取一个目标元素的高度
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function getElRect(elClass, dataVal) {
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new Promise((resolve, reject) => {
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const query = uni.createSelectorQuery().in(this);
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query.select('.' + elClass).fields({
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size: true
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}, res => {
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// 如果节点尚未生成，res值为null，循环调用执行
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if (!res) {
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setTimeout(() => {
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getElRect(elClass);
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}, 10);
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return;
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}
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if(dataVal==='menuHeight'){
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menuHeight=res.height
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}
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if(dataVal==='menuItemHeight'){
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menuItemHeight=res.height
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}
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resolve();
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}).exec();
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})
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}
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let menuItemHeight=0
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// 设置左边菜单的滚动状态
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async function leftMenuStatus(index) {
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category.active = index;
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// 如果为0，意味着尚未初始化
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if (menuHeight == 0 || menuItemHeight == 0) {
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await getElRect('menu-scroll-view', 'menuHeight');
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await getElRect('u-tab-item', 'menuItemHeight');
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}
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// 将菜单活动item垂直居中
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category.scrollTop = index * menuItemHeight + menuItemHeight / 2 - menuHeight / 2;
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}
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async function goodsScroll(e) {
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oldScrollTop = e.detail.scrollTop;
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if (rightArr.length == 0) {
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await getMenuItemTop();
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}
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if (timer) return;
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if (!menuHeight) {
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await getElRect('menu-scroll-view', 'menuHeight');
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}
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setTimeout(() => { // 节流
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timer = null;
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// scrollHeight为右边菜单垂直中点位置
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let scrollHeight = e.detail.scrollTop + menuHeight / 2;
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for (let i = 0; i < rightArr.length; i++) {
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let height1 = rightArr[i];
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let height2 = rightArr[i + 1];
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// 如果不存在height2，意味着数据循环已经到了最后一个，设置左边菜单为最后一项即可
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if (!height2 || scrollHeight >= height1 && scrollHeight < height2) {
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leftMenuStatus(i);
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return;
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}
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}
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}, 10)
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}
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onReady(() => {
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initCategory()
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getMenuItemTop()
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})
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function initCategory() {
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uni.getSystemInfo({
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success: (res) => {
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pageHeight.value = res.windowHeight
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const screenHeight = res.windowHeight; // 屏幕可用高度
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const topinfo = uni.createSelectorQuery().select(".top");
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const bottominfo = uni.createSelectorQuery().select(".bottom");
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topinfo.boundingClientRect(function(data) { //data - 各种参数
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category.top = data.height + category.statusbarHeight
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}).exec()
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bottominfo.boundingClientRect(function(data) { //data - 各种参数
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category.bottom = data.height
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}).exec()
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}
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});
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}
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const listHeight = computed(() => {
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return pageHeight.value - category.bottom - category.top
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})
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const computedCatrgoryStyle = computed(() => {
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return `
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top:${category.top}px;
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bottom:${category.bottom}px;
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`
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})
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function search() {
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}
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</script>
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<style lang="scss" scoped>
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/* 针对微信小程序的滚动条样式 */
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::v-deep.scroll-view_style::-webkit-scrollbar {
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width: 8rpx;
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}
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::v-deep.scroll-view_style::-webkit-scrollbar-thumb {
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background: #90BDF6;
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border-radius: 5px;
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/* 设置滚动条圆角 */
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}
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::v-deep.scroll-view_style::-webkit-scrollbar-track {
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background-color: #f1f1f1;
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/* 设置滚动条轨道颜色 */
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}
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.page {
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height: calc(100vh - 44px);
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}
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.goods-list {
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box-sizing: border-box;
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width: 572rpx;
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}
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.category {
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box-sizing: border-box;
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// position: fixed;
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width: 178rpx;
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// left: 0;
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.item {
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padding: 36rpx 32rpx;
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position: relative;
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background: #F9F9F9;
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transition: all .2s ease-in-out;
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&.active {
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background: #fff;
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}
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&.active::after {
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background-color: $my-main-color;
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}
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&::after {
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content: '';
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display: block;
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position: absolute;
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top: 0;
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bottom: 0;
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left: 0;
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width: 8rpx;
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}
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}
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}
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.choose-user {
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background: #F9F9F9;
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padding: 22rpx 28rpx;
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}
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.search {
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padding-right: 28rpx;
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}
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.icon-saoma {
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margin-left: 20rpx;
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width: 34rpx;
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height: 32rpx;
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}
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</style>
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Reference in New Issue
Block a user