361 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			Vue
		
	
	
	
			
		
		
	
	
			361 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			Vue
		
	
	
	
| <template>
 | ||
| 	<u-picker
 | ||
| 		ref="picker"
 | ||
| 		:show="show"
 | ||
| 		:closeOnClickOverlay="closeOnClickOverlay"
 | ||
| 		:columns="columns"
 | ||
| 		:title="title"
 | ||
| 		:itemHeight="itemHeight"
 | ||
| 		:showToolbar="showToolbar"
 | ||
| 		:visibleItemCount="visibleItemCount"
 | ||
| 		:defaultIndex="innerDefaultIndex"
 | ||
| 		:cancelText="cancelText"
 | ||
| 		:confirmText="confirmText"
 | ||
| 		:cancelColor="cancelColor"
 | ||
| 		:confirmColor="confirmColor"
 | ||
| 		@close="close"
 | ||
| 		@cancel="cancel"
 | ||
| 		@confirm="confirm"
 | ||
| 		@change="change"
 | ||
| 	>
 | ||
| 	</u-picker>
 | ||
| </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.js';
 | ||
| 	import dayjs from '../../libs/util/dayjs.js';
 | ||
| 	/**
 | ||
| 	 * DatetimePicker 时间日期选择器
 | ||
| 	 * @description 此选择器用于时间日期
 | ||
| 	 * @tutorial https://www.uviewui.com/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}	value				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: 'datetime-picker',
 | ||
| 		mixins: [uni.$u.mpMixin, uni.$u.mixin, props],
 | ||
| 		data() {
 | ||
| 			return {
 | ||
| 				columns: [],
 | ||
| 				innerDefaultIndex: [],
 | ||
| 				innerFormatter: (type, value) => value
 | ||
| 			}
 | ||
| 		},
 | ||
| 		watch: {
 | ||
| 			show(newValue, oldValue) {
 | ||
| 				if (newValue) {
 | ||
| 					this.updateColumnValue(this.innerValue)
 | ||
| 				}
 | ||
| 			},
 | ||
| 			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()
 | ||
| 		},
 | ||
| 		methods: {
 | ||
| 			init() {
 | ||
| 				this.innerValue = this.correctValue(this.value)
 | ||
| 				this.updateColumnValue(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.$emit('close')
 | ||
| 				}
 | ||
| 			},
 | ||
| 			// 点击工具栏的取消按钮
 | ||
| 			cancel() {
 | ||
| 				this.$emit('cancel')
 | ||
| 			},
 | ||
| 			// 点击工具栏的确定按钮
 | ||
| 			confirm() {
 | ||
| 				this.$emit('confirm', {
 | ||
| 					value: this.innerValue,
 | ||
| 					mode: this.mode
 | ||
| 				})
 | ||
| 				this.$emit('input', this.innerValue)
 | ||
| 			},
 | ||
| 			//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){
 | ||
| 					uni.$u.error("请勿在过滤或格式化函数时添加数字")
 | ||
| 					return 0
 | ||
| 				}else if(type&&judge[0].length==4){//判断是否是年份
 | ||
| 					return judge[0]
 | ||
| 				}else if(judge[0].length>2){
 | ||
| 					uni.$u.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()
 | ||
| 				this.updateIndexs(value)
 | ||
| 			},
 | ||
| 			// 更新索引
 | ||
| 			updateIndexs(value) {
 | ||
| 				let values = []
 | ||
| 				const formatter = this.formatter || this.innerFormatter
 | ||
| 				const padZero = uni.$u.padZero
 | ||
| 				if (this.mode === 'time') {
 | ||
| 					// 将time模式的时间用:分隔成数组
 | ||
| 				    const timeArr = value.split(':')
 | ||
| 					// 使用formatter格式化方法进行管道处理
 | ||
| 				    values = [formatter('hour', timeArr[0]), formatter('minute', timeArr[1])]
 | ||
| 				} else {
 | ||
| 				    const date = new Date(value)
 | ||
| 				    values = [
 | ||
| 				        formatter('year', `${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' ? `${value}` : uni.$u.padZero(value)
 | ||
| 			            return value
 | ||
| 			        })
 | ||
| 					// 进行过滤
 | ||
| 			        if (this.filter) {
 | ||
| 			            values = this.filter(type, values)
 | ||
| 			        }
 | ||
| 			        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 && !uni.$u.test.date(value)) {
 | ||
| 					// 如果是日期类型,但是又没有设置合法的当前时间的话,使用最小时间为当前时间
 | ||
| 					value = this.minDate
 | ||
| 				} else if (!isDateMode && !value) {
 | ||
| 					// 如果是时间类型,而又没有默认值的话,就用最小时间
 | ||
| 					value = `${uni.$u.padZero(this.minHour)}:${uni.$u.padZero(this.minMinute)}`
 | ||
| 				}
 | ||
| 				// 时间类型
 | ||
| 				if (!isDateMode) {
 | ||
| 					if (String(value).indexOf(':') === -1) return uni.$u.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 = uni.$u.padZero(uni.$u.range(this.minHour, this.maxHour, Number(hour)))
 | ||
| 					minute = uni.$u.padZero(uni.$u.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';
 | ||
| </style>
 |