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<template>
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<!-- 分类选项卡 -->
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<view class="category-tabs-wrap">
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<!-- 吸顶 -->
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<view class="u-sticky-wrap" :class="[elClass]" :style="{ height: fixed ? height + 'px' : 'auto', backgroundColor: isSticky ? '#fff' : '#f6f6f6' }">
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<view
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class="u-sticky"
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:style="{ position: fixed ? 'fixed' : 'static', top: stickyTop + 'px', left: left + 'px', width: width == 'auto' ? 'auto' : width + 'px', zIndex: 1109 }"
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>
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<view class="tabs-wrap u-p-y-20" :style="isSticky ? 'border-bottom:1px solid #eee;background-color:#fff' : ''">
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<scroll-view scroll-x class="tabs-content" scroll-with-animation :scroll-left="scrollLeft">
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<view class="u-flex u-row-cetner u-flex-1 u-col-center">
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<view class="tab-item u-flex-col u-col-center u-row-center" v-for="(item, index) in tabsList" :key="index" @tap="tabChange(index)">
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<view class="tab-title u-m-y-6" :class="{ 'title-active': tabCur == index }">{{ item.name }}</view>
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<view class="tab-des" :class="{ 'des-active': tabCur == index }">{{ item.description }}</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>
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<!-- 瀑布流 -->
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<view class="u-waterfall u-p-16" v-if="styleType == 1">
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<view id="u-left-column" class="u-column">
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<view class="goods-item u-m-b-16 u-flex u-row-center u-col-center" v-for="leftGoods in leftList" :key="leftGoods.id">
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<shopro-goods-card
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:detail="leftGoods"
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:type="leftGoods.activity_type || ''"
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:image="leftGoods.image"
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:title="leftGoods.title"
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:subtitle="leftGoods.subtitle"
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:price="leftGoods.price"
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:originPrice="leftGoods.original_price"
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:tagTextList="leftGoods.activity_discounts_tags"
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@click="$Router.push({ path: '/pages/goods/detail', query: { id: leftGoods.id } })"
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></shopro-goods-card>
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</view>
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</view>
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<view id="u-right-column" class="u-column">
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<view class="goods-item u-m-b-16 u-flex u-row-center u-col-center" v-for="rightGoods in rightList" :key="rightGoods.id">
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<shopro-goods-card
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:detail="rightGoods"
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:type="rightGoods.activity_type || ''"
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:image="rightGoods.image"
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:title="rightGoods.title"
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:subtitle="rightGoods.subtitle"
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:price="rightGoods.price"
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:originPrice="rightGoods.original_price"
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:tagTextList="rightGoods.activity_discounts_tags"
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@click="$Router.push({ path: '/pages/goods/detail', query: { id: rightGoods.id } })"
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></shopro-goods-card>
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</view>
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</view>
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</view>
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<!-- m -->
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<view class="big-card-wrap u-p-10" v-if="styleType == 2">
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<block v-for="item in goodsList" :key="item.id">
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<sh-goods-card
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:detail="item"
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:type="item.activity_type || ''"
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:image="item.image"
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:title="item.title"
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:subtitle="item.subtitle"
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:price="item.price"
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:originPrice="item.original_price"
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:sales="item.sales"
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:tagTextList="item.activity_discounts_tags"
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@click="$Router.push({ path: '/pages/goods/detail', query: { id: item.id } })"
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></sh-goods-card>
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</block>
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</view>
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<view class="x-c" style="width: 100%;">
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<!-- 缺省页 -->
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<shopro-empty v-if="isEmpty" marginTop="200rpx" :image="$IMG_URL + '/imgs/empty/empty_goods.png'" tipText="暂无该商品，还有更多好货等着你噢~"></shopro-empty>
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<!-- 更多 -->
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<u-loadmore v-show="!isEmpty" height="80rpx" :status="loadStatus" icon-type="flower" color="#ccc" />
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</view>
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</view>
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</template>
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<script>
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/**
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* category-tabs
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* @description 一个可以吸顶的分类列表
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* @property {Boolean} enable = false - 是否吸顶,tabbar项中，组件不会自动销毁，需要自行开关
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* @property {Array} tabsList - 分类列表
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* @property {Array | Number} styleType - 卡片类型
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*/
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let systemInfo = uni.getSystemInfoSync();
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// #ifdef MP-WEIXIN || MP-BAIDU || MP-TOUTIAO || MP-QQ
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let menuButtonInfo = uni.getMenuButtonBoundingClientRect();
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// #endif
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import shGoodsCard from '../components/sh-goods-card.vue';
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export default {
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components: {
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shGoodsCard
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},
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data() {
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return {
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// 吸顶相关
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fixed: false,
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height: 'auto',
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elClass: this.$u.guid(),
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left: 0,
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width: 'auto',
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stickyTop: 0,
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isSticky: false, //是否吸顶
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// 瀑布流 350-330
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addTime: 100, //排序间隙时间
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leftHeight: 0,
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rightHeight: 0,
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leftList: [],
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rightList: [],
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tempList: [],
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tabCur: 0,
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scrollLeft: 0,
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isEmpty: true,
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categoryId: this.tabsList[0]?.id,
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goodsList: [],
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tabCurrent: 0,
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loadStatus: 'loadmore', //loadmore-加载前的状态，loading-加载中的状态，nomore-没有更多的状态
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currentPage: 1,
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lastPage: 1
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};
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},
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watch: {
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enable(val) {
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if (val == false) {
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this.fixed = false;
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this.disconnectObserver('contentObserver');
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} else {
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this.initObserver();
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}
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}
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},
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props: {
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tabsList: {
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type: Array,
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default: () => []
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},
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styleType: {
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type: [String, Number],
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default: 1
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},
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enable: {
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type: Boolean,
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default: false
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}
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},
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created() {
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this.getGoodsList();
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// 触底监听
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uni.$on('uOnReachBottom', data => {
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if (this.currentPage < this.lastPage) {
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this.currentPage += 1;
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this.getGoodsList();
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}
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});
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},
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mounted() {
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this.initObserver();
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},
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beforeDestroy() {
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this.disconnectObserver('contentObserver');
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},
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methods: {
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// 瀑布流相关
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async splitData() {
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if (!this.tempList.length) return;
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let item = this.tempList[0];
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if (!item) return;
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// 分左右
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if (this.leftHeight < this.rightHeight) {
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this.leftHeight += item.activity_discounts_tags.length ? 350 : 330;
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this.leftList.push(item);
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} else if (this.leftHeight > this.rightHeight) {
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this.rightHeight += item.activity_discounts_tags.length ? 350 : 330;
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this.rightList.push(item);
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} else {
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this.leftHeight += item.activity_discounts_tags.length ? 350 : 330;
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this.leftList.push(item);
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}
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// 移除临时列表的第一项，如果临时数组还有数据，继续循环
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this.tempList.splice(0, 1);
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if (this.tempList.length) {
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setTimeout(() => {
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this.splitData();
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}, this.addTime);
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}
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},
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clear() {
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this.leftList = [];
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this.rightList = [];
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this.leftHeight = 0;
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this.rightHeight = 0;
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this.tempList = [];
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},
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// 吸顶相关
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initObserver() {
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if (!this.enable) return;
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// #ifdef APP-PLUS || H5
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this.stickyTop = systemInfo.statusBarHeight + 44;
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// #endif
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// #ifdef MP
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let height = systemInfo.platform == 'ios' ? 44 : 48;
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let top = systemInfo.statusBarHeight + height;
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this.stickyTop = systemInfo.statusBarHeight + height;
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// #endif
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this.disconnectObserver('contentObserver');
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this.$uGetRect('.' + this.elClass).then(res => {
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this.height = res.height;
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this.left = res.left;
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this.width = res.width;
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this.$nextTick(() => {
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this.observeContent();
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});
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});
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},
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observeContent() {
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this.disconnectObserver('contentObserver');
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const contentObserver = this.createIntersectionObserver({
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thresholds: [0.95, 0.98, 1]
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});
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contentObserver.relativeToViewport({
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top: -this.stickyTop
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});
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contentObserver.observe('.' + this.elClass, res => {
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if (!this.enable) return;
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this.setFixed(res.boundingClientRect.top);
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});
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this.contentObserver = contentObserver;
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},
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setFixed(top) {
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const fixed = top < this.stickyTop;
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if (fixed) {
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this.isSticky = true;
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} else if (this.fixed) {
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this.isSticky = false;
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}
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this.fixed = fixed;
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},
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disconnectObserver(observerName) {
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const observer = this[observerName];
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observer && observer.disconnect();
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},
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// 商品列表
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getGoodsList() {
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let that = this;
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that.$http('goods.lists', {
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category_id: that.categoryId,
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page: that.currentPage
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}).then(res => {
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if (res.code === 1) {
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that.goodsList = [...that.goodsList, ...res.data.data];
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that.tempList = res.data.data;
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that.isEmpty = !that.goodsList.length;
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that.lastPage = res.data.last_page;
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that.loadStatus = that.currentPage < res.data.last_page ? 'loadmore' : 'nomore';
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that.splitData();
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}
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});
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},
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// tabs
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tabChange(index) {
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this.tabCur = index;
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this.scrollLeft = (index - 1) * 60;
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this.categoryId = this.tabsList[index].id;
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this.styleType === 1 && this.clear();
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this.goodsList = [];
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this.currentPage = 1;
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this.lastPage = 1;
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this.loadStatus = 'loadmore';
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this.getGoodsList();
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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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@mixin vue-flex($direction: row) {
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/* #ifndef APP-NVUE */
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display: flex;
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flex-direction: $direction;
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/* #endif */
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}
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.category-tabs-wrap {
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min-height: 1000rpx;
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// 吸顶
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.u-sticky-wrap {
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background-color: #fff;
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}
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// 瀑布流
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.u-waterfall {
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@include vue-flex;
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flex-direction: row;
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align-items: flex-start;
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}
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.u-column {
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@include vue-flex;
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flex: 1;
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flex-direction: column;
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height: auto;
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}
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}
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// 滑动分类
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.tabs-content {
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white-space: nowrap;
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.tab-item {
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min-height: 90rpx;
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display: inline-block;
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margin: 0 10rpx;
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padding: 0 20rpx;
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.tab-title {
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font-size: 28rpx;
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font-weight: 600;
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color: #333333;
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}
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.title-active {
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color: #a8700d;
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}
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.tab-des {
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font-size: 22rpx;
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font-weight: 400;
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color: #999999;
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text-align: center;
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}
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.des-active {
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background: linear-gradient(90deg, #e9b461, #eecc89);
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border-radius: 15rpx;
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padding: 2rpx 10rpx;
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color: #ffffff;
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}
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}
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}
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</style>
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