<template>
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<view class="flex-col page">
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<!-- #ifdef APP-PLUS -->
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<view class="status_bar">
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<view class="top_view"></view>
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</view>
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<!-- #endif -->
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<view class="flex-col section_1">
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<image src="/static/local/3546451940011a031009b939a8b26314.png" class="image_1" @click="pageBack" />
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<view class="cate">分类</view>
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</view>
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<view class="grid" v-if="nowPageIndex == 1">
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<view class="grid-item justify-between"
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@click.stop="clearnCate">
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<text>全部</text>
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</view>
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<view class="grid-item justify-between" v-for="item in treeData" :key="item._id"
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@click.stop="checkMoreDetail(item,vk.pubfn.isNotNull(item.children))">
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<text>{{item.name}}</text>
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<image src="/static/remote/7560972ddd6e1777823438adf8dca72d.png" class="image_2"
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v-if="vk.pubfn.isNotNull(item.children)" />
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</view>
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</view>
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<view class="grid" v-else>
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<view class="grid-item justify-between" v-for="item in sonTreeData" :key="item._id"
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@click="selectThisCate(item)">
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<text>{{item.name}}</text>
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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 that; // 当前页面对象
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var vk; // vk依赖
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export default {
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data() {
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return {
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// 来源
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from: 'home',
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// 一级树形列表
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treeData: [],
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// 二级树形列表
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sonTreeData: [],
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// 当前所处分类层级
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nowPageIndex: 1,
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// 分类名称
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catName: ''
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}
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},
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// 监听 - 页面每次【加载时】执行(如：前进)
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onLoad(options = {}) {
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that = this;
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vk = that.vk;
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that.init(options)
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},
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// 函数
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methods: {
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// 页面数据初始化函数
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init(options) {
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this.from = options.from
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that.getCategories()
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},
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getCategories() {
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vk.callFunction({
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url: 'client/course/pub/categories',
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success(data) {
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let tree = vk.pubfn.arrayToTree(data.rows, {
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id: "_id",
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parent_id: "parent_id",
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children: "children"
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});
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that.treeData = tree;
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}
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});
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},
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// 返回上一级
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pageBack() {
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if (that.nowPageIndex != 1) {
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that.nowPageIndex = 1
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// 处于二级返回时清空数据
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that.sonTreeData = []
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that.catName = ''
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return
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}
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if (this.from) {
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uni.navigateBack({ delta: 1 })
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} else {
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uni.switchTab({
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url: "/pages/index/homePage"
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})
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}
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},
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//清除课程选中
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clearnCate(){
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let category_info = null
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vk.setStorageSync('bank_cate', category_info)
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if (this.from) {
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uni.navigateBack({ delta: 1 })
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} else {
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uni.switchTab({
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url: "/pages/index/homePage"
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})
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}
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uni.$emit('update', { msg: '页面更新' })
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},
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// 选中此课程分类
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selectThisCate(item) {
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if (that.nowPageIndex != 1) {
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that.catName += item.name
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} else {
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that.catName = item.name
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}
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let category_info = {
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id: item._id, // 分类ID
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type: that.nowPageIndex, // 分类层级 1:一级，2:二级
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name: that.catName // 分类名称
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}
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vk.setStorageSync('bank_cate', category_info)
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if (this.from) {
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uni.navigateBack({ delta: 1 })
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} else {
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uni.switchTab({
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url: "/pages/index/homePage"
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})
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}
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uni.$emit('update', { msg: '页面更新' })
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},
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// 查看二级分类
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checkMoreDetail(item, flag) {
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// 只有一级直接选择
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if (!flag) return this.selectThisCate(item)
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that.sonTreeData = item.children
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that.catName = item.name
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that.nowPageIndex = 2
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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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.status_bar,
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.top_view {
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background-color: #FDCF03;
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}
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.page {
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background-color: #ffffff;
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width: 100%;
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height: 100vh;
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overflow-y: auto;
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position: relative;
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.section_1 {
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padding-bottom: 290rpx;
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background-image: url('/static/local/16403090480416572687.png');
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background-position: 0px 0px;
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background-size: 100% 100%;
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background-repeat: no-repeat;
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position: relative;
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.image_1 {
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left: 21rpx;
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top: 27rpx;
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width: 19rpx;
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height: 35rpx;
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position: absolute;
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}
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.cate {
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width: 100%;
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padding: 20rpx 0;
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color: rgb(51, 51, 51);
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font-size: 34rpx;
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line-height: 41rpx;
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white-space: nowrap;
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text-align: center;
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}
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}
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.grid {
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max-height: calc(100vh - 196rpx);
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overflow-y: scroll;
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position: absolute;
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left: 20rpx;
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right: 20rpx;
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top: 196rpx;
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display: grid;
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grid-template-columns: repeat(2, 1fr);
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grid-row-gap: 22rpx;
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grid-column-gap: 24rpx;
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.grid-item {
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// width: 49%;
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max-height: 132rpx;
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padding: 48rpx 30rpx 46rpx;
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background-color: rgb(255, 255, 255);
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box-shadow: 0px 0px 20rpx 0px rgba(0, 0, 0, 0.06);
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border-radius: 12rpx;
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position: relative;
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}
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.image_2 {
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margin: 3rpx 0 5rpx;
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width: 16rpx;
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height: 28rpx;
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}
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}
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}
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</style>
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