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- <template>
- <view class="u-datetime-picker">
- <view v-if="hasInput" class="u-datetime-picker__has-input"
- @click="showByClickInput = !showByClickInput"
- >
- <up-input
- :placeholder="placeholder"
- :readonly="!!showByClickInput"
- border="surround"
- v-model="inputValue"
- ></up-input>
- </view>
- <u-picker
- ref="picker"
- :show="show || (hasInput && showByClickInput)"
- :popupMode="popupMode"
- :closeOnClickOverlay="closeOnClickOverlay"
- :columns="columns"
- :title="title"
- :itemHeight="itemHeight"
- :showToolbar="showToolbar"
- :visibleItemCount="visibleItemCount"
- :defaultIndex="innerDefaultIndex"
- :cancelText="cancelText"
- :confirmText="confirmText"
- :cancelColor="cancelColor"
- :confirmColor="confirmColor"
- :toolbarRightSlot="toolbarRightSlot"
- @close="close"
- @cancel="cancel"
- @confirm="confirm"
- @change="change"
- >
- <template #toolbar-right>
- <slot name="toolbar-right">
- </slot>
- </template>
- <template #toolbar-bottom>
- <slot name="toolbar-bottom">
- </slot>
- </template>
- </u-picker>
- </view>
- </template>
- <script>
- function times(n, iteratee) {
- let index = -1
- const result = Array(n < 0 ? 0 : n)
- while (++index < n) {
- result[index] = iteratee(index)
- }
- return result
- }
- import { props } from './props';
- import { mpMixin } from '../../libs/mixin/mpMixin';
- import { mixin } from '../../libs/mixin/mixin';
- import dayjs from 'dayjs/esm/index';
- import { range, error, padZero } from '../../libs/function/index';
- import test from '../../libs/function/test';
- /**
- * DatetimePicker 时间日期选择器
- * @description 此选择器用于时间日期
- * @tutorial https://ijry.github.io/uview-plus/components/datetimePicker.html
- * @property {Boolean} show 用于控制选择器的弹出与收起 ( 默认 false )
- * @property {Boolean} showToolbar 是否显示顶部的操作栏 ( 默认 true )
- * @property {String | Number} modelValue 绑定值
- * @property {String} title 顶部标题
- * @property {String} mode 展示格式 mode=date为日期选择,mode=time为时间选择,mode=year-month为年月选择,mode=datetime为日期时间选择 ( 默认 ‘datetime )
- * @property {Number} maxDate 可选的最大时间 默认值为后10年
- * @property {Number} minDate 可选的最小时间 默认值为前10年
- * @property {Number} minHour 可选的最小小时,仅mode=time有效 ( 默认 0 )
- * @property {Number} maxHour 可选的最大小时,仅mode=time有效 ( 默认 23 )
- * @property {Number} minMinute 可选的最小分钟,仅mode=time有效 ( 默认 0 )
- * @property {Number} maxMinute 可选的最大分钟,仅mode=time有效 ( 默认 59 )
- * @property {Function} filter 选项过滤函数
- * @property {Function} formatter 选项格式化函数
- * @property {Boolean} loading 是否显示加载中状态 ( 默认 false )
- * @property {String | Number} itemHeight 各列中,单个选项的高度 ( 默认 44 )
- * @property {String} cancelText 取消按钮的文字 ( 默认 '取消' )
- * @property {String} confirmText 确认按钮的文字 ( 默认 '确认' )
- * @property {String} cancelColor 取消按钮的颜色 ( 默认 '#909193' )
- * @property {String} confirmColor 确认按钮的颜色 ( 默认 '#3c9cff' )
- * @property {String | Number} visibleItemCount 每列中可见选项的数量 ( 默认 5 )
- * @property {Boolean} closeOnClickOverlay 是否允许点击遮罩关闭选择器 ( 默认 false )
- * @property {Array} defaultIndex 各列的默认索引
- * @event {Function} close 关闭选择器时触发
- * @event {Function} confirm 点击确定按钮,返回当前选择的值
- * @event {Function} change 当选择值变化时触发
- * @event {Function} cancel 点击取消按钮
- * @example <u-datetime-picker :show="show" :value="value1" mode="datetime" ></u-datetime-picker>
- */
- export default {
- name: 'up-datetime-picker',
- mixins: [mpMixin, mixin, props],
- data() {
- return {
- // 原来的日期选择器不方便,这里增加一个hasInput选项支持类似element的自带输入框的功能。
- inputValue: '', // 表单显示值
- showByClickInput: false, // 是否在hasInput模式下显示日期选择弹唱
- columns: [],
- innerDefaultIndex: [],
- innerFormatter: (type, value) => value
- }
- },
- watch: {
- show(newValue, oldValue) {
- if (newValue) {
- this.updateColumnValue(this.innerValue)
- }
- },
- // #ifdef VUE3
- modelValue(newValue) {
- this.init()
- // this.getInputValue(newValue)
- },
- // #endif
- // #ifdef VUE2
- value(newValue) {
- this.init()
- // this.getInputValue(newValue)
- },
- // #endif
- propsChange() {
- this.init()
- }
- },
- computed: {
- // 如果以下这些变量发生了变化,意味着需要重新初始化各列的值
- propsChange() {
- return [this.mode, this.maxDate, this.minDate, this.minHour, this.maxHour, this.minMinute, this.maxMinute, this.filter, ]
- }
- },
- mounted() {
- this.init()
- },
- // #ifdef VUE3
- emits: ['close', 'cancel', 'confirm', 'change', 'update:modelValue'],
- // #endif
- methods: {
- getInputValue(newValue) {
- if (newValue == '' || !newValue || newValue == undefined) {
- this.inputValue = ''
- return
- }
- if (this.mode == 'time') {
- this.inputValue = newValue
- } else {
- if (this.format) {
- this.inputValue = dayjs(newValue).format(this.format)
- } else {
- let format = ''
- switch (this.mode) {
- case 'date':
- format = 'YYYY-MM-DD'
- break;
- case 'year-month':
- format = 'YYYY-MM'
- break;
- case 'datetime':
- format = 'YYYY-MM-DD HH:mm'
- break;
- case 'time':
- format = 'HH:mm'
- break;
- default:
- break;
- }
- this.inputValue = dayjs(newValue).format(format)
- }
- }
- },
- init() {
- // #ifdef VUE3
- this.innerValue = this.correctValue(this.modelValue)
- // #endif
- // #ifdef VUE2
- this.innerValue = this.correctValue(this.value)
- // #endif
- this.updateColumnValue(this.innerValue)
- // 初始化hasInput展示
- this.getInputValue(this.innerValue)
- },
- // 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
- setFormatter(e) {
- this.innerFormatter = e
- },
- // 关闭选择器
- close() {
- if (this.closeOnClickOverlay) {
- this.$emit('close')
- }
- },
- // 点击工具栏的取消按钮
- cancel() {
- if (this.hasInput) {
- this.showByClickInput = false
- }
- this.$emit('cancel')
- },
- // 点击工具栏的确定按钮
- confirm() {
- // #ifdef VUE3
- this.$emit('update:modelValue', this.innerValue)
- // #endif
- // #ifdef VUE2
- this.$emit('input', this.innerValue)
- // #endif
- if (this.hasInput) {
- this.getInputValue(this.innerValue)
- this.showByClickInput = false
- }
- this.$emit('confirm', {
- value: this.innerValue,
- mode: this.mode
- })
- },
- //用正则截取输出值,当出现多组数字时,抛出错误
- intercept(e,type){
- let judge = e.match(/\d+/g)
- //判断是否掺杂数字
- if(judge.length>1){
- error("请勿在过滤或格式化函数时添加数字")
- return 0
- }else if(type&&judge[0].length==4){//判断是否是年份
- return judge[0]
- }else if(judge[0].length>2){
- error("请勿在过滤或格式化函数时添加数字")
- return 0
- }else{
- return judge[0]
- }
- },
- // 列发生变化时触发
- change(e) {
- const { indexs, values } = e
- let selectValue = ''
- if(this.mode === 'time') {
- // 根据value各列索引,从各列数组中,取出当前时间的选中值
- selectValue = `${this.intercept(values[0][indexs[0]])}:${this.intercept(values[1][indexs[1]])}`
- } else {
- // 将选择的值转为数值,比如'03'转为数值的3,'2019'转为数值的2019
- const year = parseInt(this.intercept(values[0][indexs[0]],'year'))
- const month = parseInt(this.intercept(values[1][indexs[1]]))
- let date = parseInt(values[2] ? this.intercept(values[2][indexs[2]]) : 1)
- let hour = 0, minute = 0
- // 此月份的最大天数
- const maxDate = dayjs(`${year}-${month}`).daysInMonth()
- // year-month模式下,date不会出现在列中,设置为1,为了符合后边需要减1的需求
- if (this.mode === 'year-month') {
- date = 1
- }
- // 不允许超过maxDate值
- date = Math.min(maxDate, date)
- if (this.mode === 'datetime') {
- hour = parseInt(this.intercept(values[3][indexs[3]]))
- minute = parseInt(this.intercept(values[4][indexs[4]]))
- }
- // 转为时间模式
- selectValue = Number(new Date(year, month - 1, date, hour, minute))
- }
- // 取出准确的合法值,防止超越边界的情况
- selectValue = this.correctValue(selectValue)
- this.innerValue = selectValue
- this.updateColumnValue(selectValue)
- // 发出change时间,value为当前选中的时间戳
- this.$emit('change', {
- value: selectValue,
- // #ifndef MP-WEIXIN
- // 微信小程序不能传递this实例,会因为循环引用而报错
- // picker: this.$refs.picker,
- // #endif
- mode: this.mode
- })
- },
- // 更新各列的值,进行补0、格式化等操作
- updateColumnValue(value) {
- this.innerValue = value
- this.updateColumns()
- // 延迟执行,等待u-picker组件列数据更新完后再设置选中值索引
- setTimeout(() => {
- this.updateIndexs(value)
- }, 0);
- },
- // 更新索引
- updateIndexs(value) {
- let values = []
- const formatter = this.formatter || this.innerFormatter
- if (this.mode === 'time') {
- // 将time模式的时间用:分隔成数组
- const timeArr = value.split(':')
- // 使用formatter格式化方法进行管道处理
- values = [formatter('hour', timeArr[0]), formatter('minute', timeArr[1])]
- } else {
- const date = new Date(value)
- values = [
- formatter('year', `${dayjs(value).year()}`),
- // 月份补0
- formatter('month', padZero(dayjs(value).month() + 1))
- ]
- if (this.mode === 'date') {
- // date模式,需要添加天列
- values.push(formatter('day', padZero(dayjs(value).date())))
- }
- if (this.mode === 'datetime') {
- // 数组的push方法,可以写入多个参数
- values.push(formatter('day', padZero(dayjs(value).date())), formatter('hour', padZero(dayjs(value).hour())), formatter('minute', padZero(dayjs(value).minute())))
- }
- }
- // 根据当前各列的所有值,从各列默认值中找到默认值在各列中的索引
- const indexs = this.columns.map((column, index) => {
- // 通过取大值,可以保证不会出现找不到索引的-1情况
- return Math.max(0, column.findIndex(item => item === values[index]))
- })
- this.innerDefaultIndex = indexs
- },
- // 更新各列的值
- updateColumns() {
- const formatter = this.formatter || this.innerFormatter
- // 获取各列的值,并且map后,对各列的具体值进行补0操作
- const results = this.getOriginColumns().map((column) => column.values.map((value) => formatter(column.type, value)))
- this.columns = results
- },
- getOriginColumns() {
- // 生成各列的值
- const results = this.getRanges().map(({ type, range }) => {
- let values = times(range[1] - range[0] + 1, (index) => {
- let value = range[0] + index
- value = type === 'year' ? `${value}` : padZero(value)
- return value
- })
- // 进行过滤
- if (this.filter) {
- values = this.filter(type, values)
- if (!values || (values && values.length == 0)) {
- // uni.showToast({
- // title: '日期filter结果不能为空',
- // icon: 'error',
- // mask: true
- // })
- console.log('日期filter结果不能为空')
- }
- }
- return { type, values }
- })
- return results
- },
- // 通过最大值和最小值生成数组
- generateArray(start, end) {
- return Array.from(new Array(end + 1).keys()).slice(start)
- },
- // 得出合法的时间
- correctValue(value) {
- const isDateMode = this.mode !== 'time'
- // if (isDateMode && !test.date(value)) {
- if (isDateMode && !dayjs.unix(value).isValid()) {
- // 如果是日期类型,但是又没有设置合法的当前时间的话,使用最小时间为当前时间
- value = this.minDate
- } else if (!isDateMode && !value) {
- // 如果是时间类型,而又没有默认值的话,就用最小时间
- value = `${padZero(this.minHour)}:${padZero(this.minMinute)}`
- }
- // 时间类型
- if (!isDateMode) {
- if (String(value).indexOf(':') === -1) return error('时间错误,请传递如12:24的格式')
- let [hour, minute] = value.split(':')
- // 对时间补零,同时控制在最小值和最大值之间
- hour = padZero(range(this.minHour, this.maxHour, Number(hour)))
- minute = padZero(range(this.minMinute, this.maxMinute, Number(minute)))
- return `${ hour }:${ minute }`
- } else {
- // 如果是日期格式,控制在最小日期和最大日期之间
- value = dayjs(value).isBefore(dayjs(this.minDate)) ? this.minDate : value
- value = dayjs(value).isAfter(dayjs(this.maxDate)) ? this.maxDate : value
- return value
- }
- },
- // 获取每列的最大和最小值
- getRanges() {
- if (this.mode === 'time') {
- return [
- {
- type: 'hour',
- range: [this.minHour, this.maxHour],
- },
- {
- type: 'minute',
- range: [this.minMinute, this.maxMinute],
- },
- ];
- }
- const { maxYear, maxDate, maxMonth, maxHour, maxMinute, } = this.getBoundary('max', this.innerValue);
- const { minYear, minDate, minMonth, minHour, minMinute, } = this.getBoundary('min', this.innerValue);
- const result = [
- {
- type: 'year',
- range: [minYear, maxYear],
- },
- {
- type: 'month',
- range: [minMonth, maxMonth],
- },
- {
- type: 'day',
- range: [minDate, maxDate],
- },
- {
- type: 'hour',
- range: [minHour, maxHour],
- },
- {
- type: 'minute',
- range: [minMinute, maxMinute],
- },
- ];
- if (this.mode === 'date')
- result.splice(3, 2);
- if (this.mode === 'year-month')
- result.splice(2, 3);
- return result;
- },
- // 根据minDate、maxDate、minHour、maxHour等边界值,判断各列的开始和结束边界值
- getBoundary(type, innerValue) {
- const value = new Date(innerValue)
- const boundary = new Date(this[`${type}Date`])
- const year = dayjs(boundary).year()
- let month = 1
- let date = 1
- let hour = 0
- let minute = 0
- if (type === 'max') {
- month = 12
- // 月份的天数
- date = dayjs(value).daysInMonth()
- hour = 23
- minute = 59
- }
- // 获取边界值,逻辑是:当年达到了边界值(最大或最小年),就检查月允许的最大和最小值,以此类推
- if (dayjs(value).year() === year) {
- month = dayjs(boundary).month() + 1
- if (dayjs(value).month() + 1 === month) {
- date = dayjs(boundary).date()
- if (dayjs(value).date() === date) {
- hour = dayjs(boundary).hour()
- if (dayjs(value).hour() === hour) {
- minute = dayjs(boundary).minute()
- }
- }
- }
- }
- return {
- [`${type}Year`]: year,
- [`${type}Month`]: month,
- [`${type}Date`]: date,
- [`${type}Hour`]: hour,
- [`${type}Minute`]: minute
- }
- }
- }
- }
- </script>
- <style lang="scss" scoped>
- @import '../../libs/css/components.scss';
- .u-datetime-picker {
- &__has-input {
- /* #ifndef APP-NVUE */
- width: 100%;
- /* #endif */
- }
- }
- </style>
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