<template>
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<view class="uni-stat__select">
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<span v-if="label" class="uni-label-text hide-on-phone">{{label + '：'}}</span>
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<view class="uni-stat-box" :class="{'uni-stat__actived': current}">
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<view class="uni-select" :class="{'uni-select--disabled':disabled}">
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<view class="uni-select__input-box" @click="toggleSelector">
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<view v-if="current" class="uni-select__input-text">{{current}}</view>
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<view v-else class="uni-select__input-text uni-select__input-placeholder">{{typePlaceholder}}</view>
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<view v-if="current && clear && !disabled" @click.stop="clearVal" >
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<uni-icons type="clear" color="#c0c4cc" size="24"/>
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</view>
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<view v-else>
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<uni-icons :type="showSelector? 'top' : 'bottom'" size="14" color="#999" />
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</view>
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</view>
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<view class="uni-select--mask" v-if="showSelector" @click="toggleSelector" />
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<view class="uni-select__selector" v-if="showSelector">
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<view class="uni-popper__arrow"></view>
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<scroll-view scroll-y="true" class="uni-select__selector-scroll">
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<view class="uni-select__selector-empty" v-if="mixinDatacomResData.length === 0">
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<text>{{emptyTips}}</text>
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</view>
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<view v-else class="uni-select__selector-item" v-for="(item,index) in mixinDatacomResData" :key="index"
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@click="change(item)">
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<text :class="{'uni-select__selector__disabled': item.disable}">{{formatItemName(item)}}</text>
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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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</view>
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</template>
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<script>
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/**
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* DataChecklist 数据选择器
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* @description 通过数据渲染的下拉框组件
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* @tutorial https://uniapp.dcloud.io/component/uniui/uni-data-select
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* @property {String} value 默认值
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* @property {Array} localdata 本地数据 ，格式 [{text:'',value:''}]
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* @property {Boolean} clear 是否可以清空已选项
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* @property {Boolean} emptyText 没有数据时显示的文字 ，本地数据无效
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* @property {String} label 左侧标题
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* @property {String} placeholder 输入框的提示文字
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* @property {Boolean} disabled 是否禁用
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* @event {Function} change 选中发生变化触发
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*/
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export default {
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name: "uni-data-select",
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mixins: [uniCloud.mixinDatacom || {}],
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props: {
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localdata: {
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type: Array,
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default () {
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return []
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}
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},
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value: {
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type: [String, Number],
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default: ''
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},
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modelValue: {
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type: [String, Number],
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default: ''
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},
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label: {
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type: String,
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default: ''
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},
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placeholder: {
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type: String,
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default: '请选择'
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},
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emptyTips: {
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type: String,
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default: '无选项'
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},
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clear: {
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type: Boolean,
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default: true
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},
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defItem: {
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type: Number,
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default: 0
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},
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disabled: {
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type: Boolean,
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default: false
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},
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// 格式化输出 用法 field="_id as value, version as text, uni_platform as label" format="{label} - {text}"
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format: {
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type: String,
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default: ''
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},
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},
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data() {
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return {
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showSelector: false,
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current: '',
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mixinDatacomResData: [],
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apps: [],
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channels: [],
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cacheKey: "uni-data-select-lastSelectedValue",
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};
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},
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created() {
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this.debounceGet = this.debounce(() => {
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this.query();
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}, 300);
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if (this.collection && !this.localdata.length) {
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this.debounceGet();
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}
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},
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computed: {
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typePlaceholder() {
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const text = {
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'opendb-stat-app-versions': '版本',
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'opendb-app-channels': '渠道',
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'opendb-app-list': '应用'
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}
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const common = this.placeholder
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const placeholder = text[this.collection]
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return placeholder ?
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common + placeholder :
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common
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},
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valueCom(){
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// #ifdef VUE3
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return this.modelValue;
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// #endif
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// #ifndef VUE3
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return this.value;
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// #endif
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}
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},
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watch: {
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localdata: {
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immediate: true,
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handler(val, old) {
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if (Array.isArray(val) && old !== val) {
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this.mixinDatacomResData = val
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}
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}
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},
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valueCom(val, old) {
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this.initDefVal()
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},
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mixinDatacomResData: {
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immediate: true,
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handler(val) {
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if (val.length) {
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this.initDefVal()
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}
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}
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}
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},
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methods: {
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debounce(fn, time = 100){
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let timer = null
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return function(...args) {
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if (timer) clearTimeout(timer)
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timer = setTimeout(() => {
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fn.apply(this, args)
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}, time)
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}
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},
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// 执行数据库查询
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query(){
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this.mixinDatacomEasyGet();
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},
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// 监听查询条件变更事件
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onMixinDatacomPropsChange(){
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if (this.collection) {
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this.debounceGet();
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}
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},
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initDefVal() {
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let defValue = ''
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if ((this.valueCom || this.valueCom === 0) && !this.isDisabled(this.valueCom)) {
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defValue = this.valueCom
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} else {
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let strogeValue
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if (this.collection) {
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strogeValue = this.getCache()
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}
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if (strogeValue || strogeValue === 0) {
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defValue = strogeValue
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} else {
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let defItem = ''
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if (this.defItem > 0 && this.defItem <= this.mixinDatacomResData.length) {
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defItem = this.mixinDatacomResData[this.defItem - 1].value
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}
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defValue = defItem
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}
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if (defValue || defValue === 0) {
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this.emit(defValue)
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}
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}
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const def = this.mixinDatacomResData.find(item => item.value === defValue)
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this.current = def ? this.formatItemName(def) : ''
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},
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/**
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* @param {[String, Number]} value
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* 判断用户给的 value 是否同时为禁用状态
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*/
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isDisabled(value) {
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let isDisabled = false;
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this.mixinDatacomResData.forEach(item => {
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if (item.value === value) {
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isDisabled = item.disable
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}
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})
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return isDisabled;
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},
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clearVal() {
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this.emit('')
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if (this.collection) {
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this.removeCache()
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}
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},
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change(item) {
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if (!item.disable) {
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this.showSelector = false
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this.current = this.formatItemName(item)
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this.emit(item.value)
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}
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},
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emit(val) {
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this.$emit('input', val)
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this.$emit('update:modelValue', val)
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this.$emit('change', val)
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if (this.collection) {
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this.setCache(val);
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}
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},
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toggleSelector() {
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if (this.disabled) {
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return
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}
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this.showSelector = !this.showSelector
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},
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formatItemName(item) {
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let {
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text,
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value,
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channel_code
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} = item
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channel_code = channel_code ? `(${channel_code})` : ''
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if (this.format) {
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// 格式化输出
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let str = "";
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str = this.format;
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for (let key in item) {
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str = str.replace(new RegExp(`{${key}}`,"g"),item[key]);
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}
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return str;
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} else {
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return this.collection.indexOf('app-list') > 0 ?
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`${text}(${value})` :
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(
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text ?
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text :
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`未命名${channel_code}`
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)
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}
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},
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// 获取当前加载的数据
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getLoadData(){
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return this.mixinDatacomResData;
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},
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// 获取当前缓存key
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getCurrentCacheKey(){
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return this.collection;
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},
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// 获取缓存
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getCache(name=this.getCurrentCacheKey()){
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let cacheData = uni.getStorageSync(this.cacheKey) || {};
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return cacheData[name];
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},
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// 设置缓存
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setCache(value, name=this.getCurrentCacheKey()){
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let cacheData = uni.getStorageSync(this.cacheKey) || {};
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cacheData[name] = value;
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uni.setStorageSync(this.cacheKey, cacheData);
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},
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// 删除缓存
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removeCache(name=this.getCurrentCacheKey()){
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let cacheData = uni.getStorageSync(this.cacheKey) || {};
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delete cacheData[name];
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uni.setStorageSync(this.cacheKey, cacheData);
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},
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}
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}
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</script>
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<style lang="scss">
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$uni-base-color: #6a6a6a !default;
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$uni-main-color: #333 !default;
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$uni-secondary-color: #909399 !default;
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$uni-border-3: #e5e5e5;
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/* #ifndef APP-NVUE */
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@media screen and (max-width: 500px) {
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.hide-on-phone {
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display: none;
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}
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}
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/* #endif */
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.uni-stat__select {
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display: flex;
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align-items: center;
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// padding: 15px;
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/* #ifdef H5 */
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cursor: pointer;
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/* #endif */
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width: 100%;
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flex: 1;
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box-sizing: border-box;
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}
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.uni-stat-box {
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width: 100%;
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flex: 1;
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}
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.uni-stat__actived {
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width: 100%;
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flex: 1;
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// outline: 1px solid #2979ff;
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}
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.uni-label-text {
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font-size: 14px;
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font-weight: bold;
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color: $uni-base-color;
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margin: auto 0;
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margin-right: 5px;
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}
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.uni-select {
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font-size: 14px;
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border: 1px solid $uni-border-3;
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box-sizing: border-box;
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border-radius: 4px;
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padding: 0 5px;
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padding-left: 10px;
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position: relative;
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/* #ifndef APP-NVUE */
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display: flex;
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user-select: none;
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/* #endif */
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flex-direction: row;
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align-items: center;
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border-bottom: solid 1px $uni-border-3;
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width: 100%;
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flex: 1;
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height: 35px;
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&--disabled {
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background-color: #f5f7fa;
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cursor: not-allowed;
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}
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}
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.uni-select__label {
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font-size: 16px;
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// line-height: 22px;
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height: 35px;
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padding-right: 10px;
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color: $uni-secondary-color;
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}
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.uni-select__input-box {
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height: 35px;
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position: relative;
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/* #ifndef APP-NVUE */
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display: flex;
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/* #endif */
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flex: 1;
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flex-direction: row;
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align-items: center;
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}
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.uni-select__input {
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flex: 1;
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font-size: 14px;
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height: 22px;
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line-height: 22px;
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}
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.uni-select__input-plac {
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font-size: 14px;
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color: $uni-secondary-color;
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}
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.uni-select__selector {
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/* #ifndef APP-NVUE */
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box-sizing: border-box;
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/* #endif */
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position: absolute;
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top: calc(100% + 12px);
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left: 0;
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width: 100%;
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background-color: #FFFFFF;
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border: 1px solid #EBEEF5;
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border-radius: 6px;
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box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
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z-index: 3;
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padding: 4px 0;
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}
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.uni-select__selector-scroll {
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/* #ifndef APP-NVUE */
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max-height: 200px;
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box-sizing: border-box;
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/* #endif */
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}
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/* #ifdef H5 */
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@media (min-width: 768px) {
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.uni-select__selector-scroll {
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max-height: 600px;
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}
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}
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/* #endif */
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.uni-select__selector-empty,
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.uni-select__selector-item {
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/* #ifndef APP-NVUE */
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display: flex;
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cursor: pointer;
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/* #endif */
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line-height: 35px;
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font-size: 14px;
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text-align: center;
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/* border-bottom: solid 1px $uni-border-3; */
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padding: 0px 10px;
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}
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.uni-select__selector-item:hover {
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background-color: #f9f9f9;
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}
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.uni-select__selector-empty:last-child,
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.uni-select__selector-item:last-child {
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/* #ifndef APP-NVUE */
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border-bottom: none;
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/* #endif */
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}
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.uni-select__selector__disabled {
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opacity: 0.4;
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cursor: default;
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}
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/* picker 弹出层通用的指示小三角 */
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.uni-popper__arrow,
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.uni-popper__arrow::after {
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position: absolute;
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display: block;
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width: 0;
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height: 0;
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border-color: transparent;
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border-style: solid;
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border-width: 6px;
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}
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.uni-popper__arrow {
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filter: drop-shadow(0 2px 12px rgba(0, 0, 0, 0.03));
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top: -6px;
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left: 10%;
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margin-right: 3px;
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border-top-width: 0;
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border-bottom-color: #EBEEF5;
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}
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.uni-popper__arrow::after {
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content: " ";
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top: 1px;
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margin-left: -6px;
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border-top-width: 0;
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border-bottom-color: #fff;
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}
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.uni-select__input-text {
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// width: 280px;
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width: 100%;
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color: $uni-main-color;
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white-space: nowrap;
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text-overflow: ellipsis;
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-o-text-overflow: ellipsis;
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overflow: hidden;
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}
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.uni-select__input-placeholder {
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color: $uni-base-color;
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font-size: 12px;
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}
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.uni-select--mask {
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position: fixed;
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top: 0;
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bottom: 0;
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right: 0;
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left: 0;
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z-index: 2;
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}
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</style>
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