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289 lines
10 KiB
Vue
289 lines
10 KiB
Vue
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<template>
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<u-popup
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:show="show"
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mode="bottom"
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closeable
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@close="close"
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round
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:closeOnClickOverlay="closeOnClickOverlay"
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>
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<view class="u-calendar">
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<uHeader
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:title="title"
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:subtitle="subtitle"
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:showSubtitle="showSubtitle"
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:showTitle="showTitle"
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></uHeader>
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<scroll-view
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:style="{
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height: $u.addUnit(listHeight)
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}"
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scroll-y
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@scroll="onScroll"
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:scrollIntoView="scrollIntoView"
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>
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<uMonth
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:color="color"
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:rowHeight="rowHeight"
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:showMark="showMark"
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:months="months"
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:mode="mode"
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:maxCount="maxCount"
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:startText="startText"
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:endText="endText"
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:defaultDate="defaultDate"
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:minDate="minDate"
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:maxDate="maxDate"
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:maxMonth="maxMonth"
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:readonly="readonly"
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:maxRange="maxRange"
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:rangePrompt="rangePrompt"
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:showRangePrompt="showRangePrompt"
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:allowSameDay="allowSameDay"
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ref="month"
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@monthSelected="monthSelected"
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@updateMonthTop="updateMonthTop"
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></uMonth>
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</scroll-view>
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<slot name="footer" v-if="showConfirm">
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<view class="u-calendar__confirm">
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<u-button
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shape="circle"
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:text="buttonDisabled ? confirmDisabledText : confirmText"
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:color="color"
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@click="confirm"
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:disabled="buttonDisabled"
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></u-button>
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</view>
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</slot>
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</view>
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</u-popup>
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</template>
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<script>
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import uHeader from './header.vue';
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import uMonth from './month.vue';
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import props from './props.js';
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import util from './util.js';
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import dayjs from '../../libs/util/dayjs.js';
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import Calendar from '../../libs/util/calendar.js';
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/**
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* Calendar 日历
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* @description 此组件用于单个选择日期，范围选择日期等，日历被包裹在底部弹起的容器中.
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* @tutorial https://www.uviewui.com/components/calendar.html
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*
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* @property {String} title 标题内容 (默认 日期选择 )
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* @property {Boolean} showTitle 是否显示标题 (默认 true )
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* @property {Boolean} showSubtitle 是否显示副标题 (默认 true )
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* @property {String} mode 日期类型选择 single-选择单个日期，multiple-可以选择多个日期，range-选择日期范围 （ 默认 'single' )
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* @property {String} startText mode=range时，第一个日期底部的提示文字 (默认 '开始' )
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* @property {String} endText mode=range时，最后一个日期底部的提示文字 (默认 '结束' )
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* @property {Array} customList 自定义列表
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* @property {String} color 主题色，对底部按钮和选中日期有效 (默认 ‘#3c9cff' )
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* @property {String | Number} minDate 最小的可选日期 (默认 0 )
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* @property {String | Number} maxDate 最大可选日期 (默认 0 )
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* @property {Array | String| Date} defaultDate 默认选中的日期，mode为multiple或range是必须为数组格式
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* @property {String | Number} maxCount mode=multiple时，最多可选多少个日期 (默认 Number.MAX_SAFE_INTEGER )
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* @property {String | Number} rowHeight 日期行高 (默认 56 )
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* @property {Function} formatter 日期格式化函数
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* @property {Boolean} showLunar 是否显示农历 (默认 false )
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* @property {Boolean} showMark 是否显示月份背景色 (默认 true )
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* @property {String} confirmText 确定按钮的文字 (默认 '确定' )
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* @property {String} confirmDisabledText 确认按钮处于禁用状态时的文字 (默认 '确定' )
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* @property {Boolean} show 是否显示日历弹窗 (默认 false )
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* @property {Boolean} closeOnClickOverlay 是否允许点击遮罩关闭日历 (默认 false )
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* @property {Boolean} readonly 是否为只读状态，只读状态下禁止选择日期 (默认 false )
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* @property {String | Number} maxRange 日期区间最多可选天数，默认无限制，mode = range时有效
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* @property {String} rangePrompt 范围选择超过最多可选天数时的提示文案，mode = range时有效
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* @property {Boolean} showRangePrompt 范围选择超过最多可选天数时，是否展示提示文案，mode = range时有效 (默认 true )
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* @property {Boolean} allowSameDay 是否允许日期范围的起止时间为同一天，mode = range时有效 (默认 false )
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*
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* @event {Function()} confirm 点击确定按钮时触发 选择日期相关的返回参数
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* @event {Function()} close 日历关闭时触发 可定义页面关闭时的回调事件
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* @example <u-calendar :defaultDate="defaultDateMultiple" :show="show" mode="multiple" @confirm="confirm">
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</u-calendar>
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* */
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export default {
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name: 'u-calendar',
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mixins: [uni.$u.mpMixin, uni.$u.mixin, props],
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components: {
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uHeader,
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uMonth
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},
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data() {
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return {
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// 需要显示的月份的数组
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months: [],
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// 在月份滚动区域中，当前视图中月份的index索引
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monthIndex: 0,
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// 月份滚动区域的高度
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listHeight: 0,
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// month组件中选择的日期数组
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selected: [],
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// 如果没有设置最大可选日期，默认为往后推3个月
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maxMonth: 3,
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scrollIntoView: '',
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// 过滤处理方法
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innerFormatter: value => value
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}
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},
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watch: {
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selectedChange: {
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immediate: true,
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handler(n) {
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this.setMonth()
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}
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},
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// 打开弹窗时，设置月份数据
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show: {
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immediate: true,
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handler(n) {
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this.setMonth()
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}
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},
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},
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computed: {
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// 多个条件的变化，会引起选中日期的变化，这里统一管理监听
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selectedChange() {
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return [this.minDate, this.maxDate, this.defaultDate]
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},
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subtitle() {
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// 初始化时，this.months为空数组，所以需要特别判断处理
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if (this.months.length) {
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return `${this.months[this.monthIndex].year}年${this.months[this.monthIndex].month}月`
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} else {
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return ''
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}
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},
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buttonDisabled() {
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// 如果为range类型，且选择的日期个数不足1个时，让底部的按钮出于disabled状态
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if (this.mode === 'range') {
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if (this.selected.length <= 1) {
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return true
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} else {
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return false
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}
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} else {
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return false
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}
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}
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},
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mounted() {
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this.start = Date.now()
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this.init()
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},
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methods: {
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// 在微信小程序中，不支持将函数当做props参数，故只能通过ref形式调用
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setFormatter(e) {
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this.innerFormatter = e
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},
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// month组件内部选择日期后，通过事件通知给父组件
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monthSelected(e) {
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this.selected = e
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if(!this.showConfirm) {
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// 在不需要确认按钮的情况下，如果为单选，或者范围多选且已选长度大于2，则直接进行返还
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if (this.mode === 'multiple' || this.mode === 'single' || this.mode === 'range' && this.selected.length >= 2) {
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this.$emit('confirm', this.selected)
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}
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}
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},
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init() {
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// 滚动区域的高度
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this.listHeight = this.rowHeight * 5 + 30
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this.setMonth()
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},
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close() {
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this.$emit('close')
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},
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// 点击确定按钮
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confirm() {
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if (!this.buttonDisabled) {
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this.$emit('confirm', this.selected)
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}
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},
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// 设置月份数据
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setMonth() {
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// 最小日期的毫秒数
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const minDate = this.minDate || dayjs().valueOf()
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// 如果没有指定最大日期，则往后推3个月
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const maxDate = this.maxDate || dayjs(minDate).add(this.maxMonth - 1, 'month').valueOf()
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// 最小与最大月份
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let minMonth = dayjs(minDate).month() + 1
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let maxMonth = dayjs(maxDate).month() + 1
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// 如果maxMonth小于minMonth，则意味着maxMonth为下一年的月份，需要加上12，为的是计算出两个月份之间间隔着多少月份
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maxMonth = minMonth > maxMonth ? maxMonth + 12 : maxMonth
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// 最大最小月份之间的共有多少个月份
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const months = Math.abs(minMonth - maxMonth)
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// 先清空数组
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this.months = []
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for (let i = 0; i <= months; i++) {
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this.months.push({
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date: new Array(dayjs(minDate).add(i, 'month').daysInMonth()).fill(1).map((item,
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index) => {
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// 日期，取值1-31
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let day = index + 1
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// 星期，0-6，0为周日
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const week = dayjs(minDate).add(i, "month").date(day).day()
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const date = dayjs(minDate).add(i, "month").date(day).format("YYYY-MM-DD")
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let bottomInfo = ''
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if (this.showLunar) {
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// 将日期转为农历格式
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const lunar = Calendar.solar2lunar(dayjs(date).year(), dayjs(date)
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.month() + 1, dayjs(date).date())
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bottomInfo = lunar.IDayCn
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}
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let config = {
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day,
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week,
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// 小于最小允许的日期，或者大于最大的日期，则设置为disabled状态
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disabled: dayjs(date).isBefore(dayjs(minDate).format("YYYY-MM-DD")) ||
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dayjs(date).isAfter(dayjs(maxDate).format("YYYY-MM-DD")),
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// 返回一个日期对象，供外部的formatter获取当前日期的年月日等信息，进行加工处理
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date: new Date(date),
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bottomInfo,
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dot: false,
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month: dayjs(minDate).add(i, "month").month() + 1
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}
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const formatter = this.formatter || this.innerFormatter
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return formatter(config)
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}),
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// 当前所属的月份
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month: dayjs(minDate).add(i, "month").month() + 1,
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// 当前年份
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year: dayjs(minDate).add(i, "month").year()
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});
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}
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},
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// scroll-view滚动监听
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onScroll(event) {
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// 不允许小于0的滚动值，如果scroll-view到顶了，继续下拉，会出现负数值
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const scrollTop = Math.max(0, event.detail.scrollTop)
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// 将当前滚动条数值，除以滚动区域的高度，可以得出当前滚动到了哪一个月份的索引
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for (let i = 0; i < this.months.length; i++) {
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if (scrollTop >= (this.months[i].top || this.listHeight)) {
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this.monthIndex = i
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}
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}
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},
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// 更新月份的top值
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updateMonthTop(topArr = []) {
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// 设置对应月份的top值，用于onScroll方法更新月份
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topArr.map((item, index) => {
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this.months[index].top = item
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})
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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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@import "../../libs/css/components.scss";
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.u-calendar {
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&__confirm {
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padding: 7px 18px;
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}
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}
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</style>
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