345 lines
9.4 KiB
Vue
345 lines
9.4 KiB
Vue
<template>
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<view class="wrap">
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<view class="menu">
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<scroll-view scroll-y scroll-with-animation class="tab-view menu-scroll-view" :scroll-top="scrollTop"
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:scroll-into-view="itemId">
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<view v-for="(item,index) in category" :key="index" class="tab-item"
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:class="[current == index ? 'tab-item-active' : '']" @tap.stop="swichMenu(index)">
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<text class="hm-line-1">{{item.name}}</text>
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</view>
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</scroll-view>
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<scroll-view :scroll-top="scrollRightTop" scroll-y scroll-with-animation class="right-box"
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@scroll="rightScroll">
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<view class="class-item" :id="'item' + index" v-for="(item , index) in category" :key="index">
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<view class="item-title">{{item.name}}</view>
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<view class="item-goods" v-for="(item1, index1) in item.goods" :key="index1">
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<image :src="item1.image[0].url"></image>
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<div v-if="applet.other.is_stock == 1 && item1.stock < 1" class="tag">
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售罄
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</div>
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<div v-else-if="item1.goods_status.value == 20" class="tag">
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{{item1.goods_status.text}}
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</div>
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<view class="hm-line-1 hm-col-main hm-font-28">{{item1.goods_name}}</view>
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<view class="hm-font-24 hm-col-tips">
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已售：{{item1.goods_sales}}份
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</view>
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<view class="hm-font-24 hm-col-error">
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￥{{item1.spec[0].goods_price}}
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</view>
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<view>
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<view class="hm-dis-block-inline">
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<u-button @click="del(item1.goods_id)" type="error" size="mini" text="删除"></u-button>
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</view>
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<view class="hm-m-l-10 hm-dis-block-inline">
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<u-button @click="goTo('user/goods/edit?id='+item1.goods_id)" type="primary" size="mini" text="删除">修改</u-button>
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</view>
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<view class="hm-m-l-10 hm-dis-block-inline">
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<u-button @click="status(item1.goods_status.value,item1.goods_id)" :type="item1.goods_status.value == 10 ? 'success':'warning'" size="mini" :text="item1.goods_status.text"></u-button>
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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 class="hm-footer-fixed">
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<view class="hm-p-lr-b25 hm-w-b100 hm-bg-f">
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<view class="hm-p-t-10">
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<u-button @click="goTo('user/goods/add')" type="success" text="添加商品"></u-button>
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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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var App = getApp();
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export default {
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data() {
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return {
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applet:{},
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scrollTop: 0, //tab标题的滚动条位置
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oldScrollTop: 0,
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current: 0, // 预设当前项的值
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menuHeight: 0, // 左边菜单的高度
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menuItemHeight: 0, // 左边菜单item的高度
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itemId: '', // 栏目右边scroll-view用于滚动的id
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arr: [],
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scrollRightTop: 0, // 右边栏目scroll-view的滚动条高度
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timer: null, // 定时器
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category: {}, //分类+商品列表
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};
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},
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components: {},
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props: {},
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onLoad(options) {
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let _this = this;
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_this.applet = App.getApplet();
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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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let _this = this;
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_this.getList(); //获取商品和分类
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},
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methods: {
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/**
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* 获取商品列表
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*/
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getList: function() {
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let _this = this;
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App._get('goods/lists', {}, function(result) {
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_this.setData(result.data);
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});
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},
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/**
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* 删除商品
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*/
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del: function(goods_id) {
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let _this = this;
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uni.showModal({
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title: "提示",
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content: "确定要删除该商品？",
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success: function(o) {
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if (o.confirm) {
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App._get('goods/delete', {
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id: goods_id
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}, function(result) {
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App.showSuccess(result.msg, function() {
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_this.getList();
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});
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});
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}
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}
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});
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},
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/**
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* 商品上/下架
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*/
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status: function(value,goods_id) {
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let _this = this;
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let msg = value == 10 ? "下架" : "上架";
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uni.showModal({
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title: "提示",
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content: "确定要" + msg + "该商品？",
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success: function(o) {
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if (o.confirm) {
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App._get('goods/status', {
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id: goods_id
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}, function(result) {
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App.showSuccess(result.msg, function() {
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_this.getList();
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});
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});
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}
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}
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});
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},
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// 点击左边的栏目切换
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async swichMenu(index) {
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if (this.arr.length == 0) {
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await this.getMenuItemTop();
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}
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if (index == this.current) return;
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this.scrollRightTop = this.oldScrollTop;
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this.$nextTick(function() {
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this.scrollRightTop = this.arr[index];
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this.current = index;
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this.leftMenuStatus(index);
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})
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},
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// 获取一个目标元素的高度
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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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this.getElRect(elClass);
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}, 10);
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return;
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}
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this[dataVal] = res.height;
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resolve();
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}).exec();
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})
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},
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// 观测元素相交状态
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async observer() {
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this.tabbar.map((val, index) => {
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let observer = uni.createIntersectionObserver(this);
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// 检测右边scroll-view的id为itemxx的元素与right-box的相交状态
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// 如果跟.right-box底部相交，就动态设置左边栏目的活动状态
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observer.relativeTo('.right-box', {
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top: 0
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}).observe('#item' + index, res => {
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if (res.intersectionRatio > 0) {
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let id = res.id.substring(4);
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this.leftMenuStatus(id);
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}
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})
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})
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},
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// 设置左边菜单的滚动状态
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async leftMenuStatus(index) {
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this.current = index;
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// 如果为0，意味着尚未初始化
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if (this.menuHeight == 0 || this.menuItemHeight == 0) {
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await this.getElRect('menu-scroll-view', 'menuHeight');
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await this.getElRect('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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this.scrollTop = index * this.menuItemHeight + this.menuItemHeight / 2 - this.menuHeight / 2;
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},
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// 获取右边菜单每个item到顶部的距离
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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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this.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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this.arr.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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// 右边菜单滚动
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async rightScroll(e) {
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this.oldScrollTop = e.detail.scrollTop;
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if (this.arr.length == 0) {
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await this.getMenuItemTop();
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}
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if (this.timer) return;
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if (!this.menuHeight) {
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await this.getElRect('menu-scroll-view', 'menuHeight');
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}
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setTimeout(() => { // 节流
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this.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 + this.menuHeight / 2;
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for (let i = 0; i < this.arr.length; i++) {
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let height1 = this.arr[i];
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let height2 = this.arr[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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this.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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/**
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* 跳转
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*/
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goTo: function(url) {
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App.goTo(url);
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}
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}
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};
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</script>
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<style lang="scss" scoped>
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.wrap {
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height: calc(100vh - 100rpx);
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/* #ifdef H5 */
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height: calc(100vh - 100rpx - var(--window-top));
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/* #endif */
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display: flex;
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flex-direction: column;
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.menu {
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flex: 1;
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display: flex;
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overflow: hidden;
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.tab-view {
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width: 220rpx;
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height: 100%;
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background-color: #FFFFFF;
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.tab-item {
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height: 110rpx;
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background: #FFFFFF;
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box-sizing: border-box;
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display: flex;
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align-items: center;
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justify-content: center;
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font-size: 26rpx;
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color: #444;
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font-weight: 400;
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line-height: 1;
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border-bottom: 1rpx solid #f3f4f6;
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}
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.tab-item-active {
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position: relative;
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color: #000;
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font-size: 30rpx;
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font-weight: 600;
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background: #f3f4f6;
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}
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.tab-item-active::before {
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content: "";
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position: absolute;
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border-left: 4px solid #fa3534;
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height: 32rpx;
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left: 0;
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top: 39rpx;
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}
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}
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.right-box {
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background-color: #f3f4f6;
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.class-item {
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padding: 16rpx;
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.item-title {
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font-size: 28rpx;
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color: #999;
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background-color: #FFF;
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padding: 15rpx 20rpx;
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border-bottom: 1rpx solid #f3f4f6;
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}
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.item-goods {
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padding: 15rpx;
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background-color: #FFF;
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height: 150rpx;
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position:relative;
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image {
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width: 150rpx;
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height: 150rpx;
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border-radius: 8rpx;
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float: left;
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margin-right: 20rpx;
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}
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.tag{
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display: inline-block;
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z-index: 1;
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position: absolute;
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top: 15rpx;
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left: 15rpx;
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width: 150rpx;
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height: 150rpx;
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border-radius: 8rpx;
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background: rgba(0, 0, 0, 0.5);
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color: #fff;
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line-height: 150rpx;
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text-align: center;
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font-size: 26rpx;
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}
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}
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}
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}
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}
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}
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</style> |