用 Vue 3.5 TypeScript 做了一个日期选择器(改进版)

上一篇已经实现了一个日期选择器，只不过是模态窗的形式，这个版本改为文本框弹出，点击空白处可关闭日历

代码也增加了不少

<template><div><!-- 添加文本框 --><div class="date-picker-input-wrapper"><inputtype="text"v-model="selectedDateText"@click="showCalendar = true"readonlyplaceholder="请选择日期"class="date-picker-input"ref="inputRef"/><span class="clear-date-button" @click="clearDate" v-if="selectedDateText"><svg viewBox="0 0 24 24"><path d="M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z"></path></svg></span></div><!-- 日期选择器 --><div class="e-calendar" v-show="showCalendar" ref="calendarRef"><div class="e-date-year"><transition name="fadeY"><div:key="selectDate.year"class="e-date-year-select"@click="openYearList":class="{ active: showYear }">{{ selectDate.year }}</div></transition></div><div class="e-date-monthday"><transition name="fadeY"><div:key="selectDate.day"class="e-date-monthday-select":class="{ active: !showYear }"@click="openCalendarList"><span>{{ keepDoubleDigit(selectDate.month) }}-{{ keepDoubleDigit(selectDate.day) }}</span>&nbsp;<span style="cursor: pointer;" @click="openMonthList">{{ showDate.monthStr }}</span></div></transition></div><div class="e-calendar-container" v-show="!showYear && !showMonth"><div class="e-calendar-toolbar"><div class="e-calendar-svg" @click="prevMonth"><svg viewBox="0 0 24 24" class="e-calendar-svg-icon"><path d="M15.41 7.41L14 6l-6 6 6 6 1.41-1.41L10.83 12z"></path></svg><transition name="e_calendar_svg_btn"><div class="e-calendar-svg-cover" v-if="prevMonthClick"></div></transition></div><div class="e-calendar-toolbar-title"><transition :name="fadeXType"><div:key="showDate.monthStr"class="e-calendar-toolbar-title-content"><strong>{{ showDate.year }}</strong>&nbsp;<span style="cursor: pointer;" @click="openMonthList">{{ showDate.monthStr }}</span></div></transition></div><div class="e-calendar-svg" @click="nextMonth"><svg viewBox="0 0 24 24" class="e-calendar-svg-icon"><path d="M10 6L8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"></path></svg><transition name="e_calendar_svg_btn"><div class="e-calendar-svg-cover" v-if="nextMonthClick"></div></transition></div></div><div class="e-calendar-week"><span class="e-calendar-week-day">一</span><span class="e-calendar-week-day">二</span><span class="e-calendar-week-day">三</span><span class="e-calendar-week-day">四</span><span class="e-calendar-week-day">五</span><span class="e-calendar-week-day">六</span><span class="e-calendar-week-day">日</span></div><div class="e-calendar-monthday"><transition :name="fadeXType"><div:key="showDate.monthStr"class="e-calendar-monthday-wrapper"><divv-for="(row, index) in rows":key="index"class="e-calendar-monthday-row"><spanv-for="(day, dayIndex) in row":key="dayIndex"class="e-calendar-monthday-row-day"@click="selectDay(day)"@mouseenter="handleDayMouseEnter(dayIndex, index)"@mouseleave="handleDayMouseLeave(dayIndex, index)":class="{active: day.selected,disabled: day.disabled,pointer: day.value!== '',hover: isDayHovered(dayIndex, index)}"><spanv-text="day.value"class="e-calendar-monthday-row-day-value"></span><transition name="e_calendar_day"><spanclass="e-calendar-monthday-row-day-cover"v-if="day.selected"></span></transition></span></div></div></transition></div></div><ul class="e-calendar-year" v-show="showYear" ref="yearList"><liv-for="(item, index) in yearList":key="index":class="{active: item === selectDate.year,hover: isYearHovered(index)}"@click="selectYear(item)"@mouseenter="handleYearMouseEnter(index)"@mouseleave="handleYearMouseLeave()">{{ item }}</li></ul><ul class="e-calendar-year" v-show="showMonth" ref="monthList"><liv-for="(item, index) in monthList":key="index":class="{active: item === selectDate.month,hover: isMonthHovered(index)}"@click="selectMonth(item)"@mouseenter="handleMonthMouseEnter(index)"@mouseleave="handleMonthMouseLeave()">{{ item }}</li></ul></div></div>
</template><script lang="ts">
import { defineComponent, ref, computed, onBeforeMount, onMounted, onUnmounted } from 'vue';// 阿拉伯数字 转 汉字数字的基本库
const weekJson = {1: '星期一',2: '星期二',3: '星期三',4: '星期四',5: '星期五',6: '星期六',7: '星期日',
};
const monthJson = {1: '一月',2: '二月',3: '三月',4: '四月',5: '五月',6: '六月',7: '七月',8: '八月',9: '九月',10: '十月',11: '十一月',12: '十二月',
};export default defineComponent({props: {// 打开date picker的初始值，必传，格式是（2017-08-11）date: {type: String,required: true,},// 日期最小值minDate: String,// 日期最大值maxDate: String,},setup(props, { emit }) {// 定义响应式数据let selectDate = ref({year: 0,month: 0,day: 0,week: 0,date: '',weekStr: '',monthStr: '',});let showDate = ref({year: 0,month: 0,day: 0,week: 0,date: '',monthStr: '',weekStr: '',});let copyMinDate = ref({year: 0,month: 0,day: 0,});let copyMaxDate = ref({year: 0,month: 0,day: 0,});const fadeXType = ref('fadeX_Prev');const nextMonthClick = ref(false);const prevMonthClick = ref(false);const showYear = ref(false);const showMonth = ref(false);const yearListRef = ref<HTMLUListElement | null>(null);const monthListRef = ref<HTMLUListElement | null>(null);const showCalendar = ref(false); // 控制日期选择器的显示和隐藏const selectedDateText = ref(''); // 文本框显示的日期const calendarRef = ref<HTMLDivElement | null>(null); // 日期组件的引用const inputRef = ref<HTMLInputElement | null>(null); // 新增文本框引用const hoveredYearIndex = ref(-1);const hoveredMonthIndex = ref(-1);const hoveredDayIndex = ref({ row: -1, col: -1 });const yearList = computed(() => {const result: number[] = [];for (let i = copyMinDate.value.year; i <= copyMaxDate.value.year; i += 1) {result.push(i);}return result;});const monthList = computed(() => {const result: number[] = [];for (let i = 1; i <= 12; i += 1) {result.push(i);}return result;});const rows = computed(() => {const { year, month } = showDate.value;const months = new Date(year, month, 0).getDate();const result: {value: number | string;selected?: boolean;disabled?: boolean;}[][] = [];let row: {value: number | string;selected?: boolean;disabled?: boolean;}[] = [];let weekValue: number;// 按照星期分组for (let i = 1; i <= months; i += 1) {// 根据日期获取星期，并让开头是1，而非0weekValue = new Date(year, month - 1, i).getDay() + 1;// 判断月第一天在星期几，并填充前面的空白区域if (i === 1 && weekValue!== 1) {addRowEmptyValue(row, weekValue);addRowDayValue(row, i);} else {addRowDayValue(row, i);// 判断月最后一天在星期几，并填充后面的空白区域if (i === months && weekValue!== 7) {addRowEmptyValue(row, (7 - weekValue) + 1);}}// 按照一周分组if (weekValue % 7 === 0 || i === months) {result.push(row);row = [];}}showDate.value.monthStr = monthJson[showDate.value.month as keyof typeof monthJson];return result;});// 初始化日期选择器const initDatePicker = () => {const splitResult = splitDate(props.date, true);showDate.value = {...splitResult,date: `${splitResult.year}-${keepDoubleDigit(splitResult.month)}-${keepDoubleDigit(splitResult.day)}`,week: splitResult.week || 0,monthStr: splitResult.monthStr || '',weekStr: splitResult.weekStr || '',};copyMinDate.value = { ...splitDate(props.minDate || '1970-01-01') };copyMaxDate.value = { ...splitDate(props.maxDate || '2099-12-31') };selectDate.value = { ...showDate.value };selectedDateText.value = showDate.value.date;};onBeforeMount(() => {initDatePicker();});// 拆分日期const splitDate = (date: string, addStr = false) => {let result: {year: number;month: number;day: number;week?: number;monthStr?: string;weekStr?: string;} = {year: 0,month: 0,day: 0,};const splitValue = date.split('-');try {if (!splitValue || splitValue.length < 3) {throw new Error('时间格式不正确');}result = {year: Number(splitValue[0]),month: Number(splitValue[1]),day: Number(splitValue[2]),};if (addStr) {result.week = new Date(result.year, result.month - 1, result.day).getDay() + 1;result.monthStr = monthJson[result.month as keyof typeof monthJson];result.weekStr = weekJson[result.week as 1 | 2 | 3 | 4 | 5 | 6 | 7];}} catch (error) {console.error(error);}return result;};// 添加空值const addRowEmptyValue = (row: {value: number | string;selected?: boolean;disabled?: boolean;}[],count: number) => {for (let w = 1; w < count; w += 1) {row.push({value: '',});}};// 添加日期值const addRowDayValue = (row: {value: number | string;selected?: boolean;disabled?: boolean;}[],i: number) => {const value = { value: i };const { day, month, year } = selectDate.value;const showDateValue = showDate.value;// 判断已经选择的if (year === showDateValue.year && month === showDateValue.month && day === i) {// 为对象添加 selected 属性const newValue = { ...value, selected: true };row.push(newValue);}// 当日期在最小值之外，禁止点击if (isMinLimitMonth() && i < copyMinDate.value.day) {// 修复：添加 disabled 属性const newValue = { ...value, disabled: true };row.push(newValue);}// 当日期在最大值之外，禁止点击if (isMaxLimitMonth() && i > copyMaxDate.value.day) {// 修复：添加 disabled 属性const newValue = { ...value, disabled: true };row.push(newValue);}row.push(value);};// 切换到上一个月const prevMonth = () => {if (prevMonthClick.value) {return;}prevMonthClick.value = true;setTimeout(() => {prevMonthClick.value = false;}, 500);fadeXType.value = 'fadeX_Prev';// 如何当前月份已经小于等于minMonth 就不让其在执行if (isMinLimitMonth()) {return;}const { year, month } = showDate.value;// 判断当前月份，如果已经等于1（1就是一月，而不是二月）if (month <= 1) {showDate.value.year = year - 1;showDate.value.month = 12;} else {showDate.value.month -= 1;}};// 切换到下一个月const nextMonth = () => {if (nextMonthClick.value) {return;}nextMonthClick.value = true;setTimeout(() => {nextMonthClick.value = false;}, 500);fadeXType.value = 'fadeX_Next';// 如何当前月份已经大于等于maxMonth 就不让其在执行if (isMaxLimitMonth()) {return;}const { year, month } = showDate.value;// 判断当前月份，如果已经等于12（12就是十二月）if (month >= 12) {showDate.value.year = year + 1;showDate.value.month = 1;} else {showDate.value.month += 1;}};// 重置选择日期let resetSelectDate = (dayValue: number) => {selectDate.value = { ...showDate.value };selectDate.value.day = dayValue;selectDate.value.week = new Date(showDate.value.year, showDate.value.month - 1, dayValue).getDay() + 1;selectDate.value.weekStr = weekJson[selectDate.value.week as keyof typeof weekJson];selectedDateText.value = `${selectDate.value.year}-${keepDoubleDigit(selectDate.value.month)}-${keepDoubleDigit(selectDate.value.day)}`;showCalendar.value = false; // 选择日期后隐藏日期选择器};// 选择日期const selectDay = (days: { value: number | string; disabled?: boolean }) => {if (days.disabled || days.value === '') {return;}resetSelectDate(Number(days.value));const { year, month, day, week, weekStr, monthStr } = selectDate.value;emit('confirm', {date: `${year}-${keepDoubleDigit(month)}-${keepDoubleDigit(day)}`,year,month,week,monthStr,weekStr,day,});};// 选择月份const selectMonth = (value: number) => {showYear.value = false;showMonth.value = false;showDate.value.month = value;let type: 'copyMinDate' | 'copyMaxDate' | undefined;// 当月份在最小值之外，日期换成最小值日期 或者 当月份在最大值之外，日期换成最大值日期if (isMinLimitMonth()) {type = 'copyMinDate';} else if (isMaxLimitMonth()) {type = 'copyMaxDate';}if (type) {showDate.value.day = type === 'copyMinDate'? copyMinDate.value.day : copyMaxDate.value.day;resetSelectDate(showDate.value.day);return;}let dayValue = selectDate.value.day;// 判断日是最大值，防止另一个月没有这个日期const daysInMonth = new Date(showDate.value.year, showDate.value.month + 1, 0).getDate();if (selectDate.value.day > daysInMonth) {dayValue = daysInMonth;}resetSelectDate(dayValue);};// 选择年份const selectYear = (value: number) => {showYear.value = false;showMonth.value = false;showDate.value.year = value;let type: 'copyMinDate' | 'copyMaxDate' | undefined;// 当日期在最小值之外，月份换成最小值月份 或者 当日期在最大值之外，月份换成最大值月份if (isMinLimitMonth()) {type = 'copyMinDate';} else if (isMaxLimitMonth()) {type = 'copyMaxDate';}if (type) {showDate.value.month = copyMinDate.value.month;showDate.value.day = copyMinDate.value.day;resetSelectDate(showDate.value.day);return;}let dayValue = selectDate.value.day;// 判断日是最大值，防止另一个月没有这个日期if (selectDate.value.day > 28) {const months = new Date(showDate.value.year, showDate.value.month, 0).getDate();// 当前月份没有这么多天，就把当前月份最大值赋值给daydayValue = months < dayValue? months : dayValue;}resetSelectDate(dayValue);};// 判断是否为最小月份限制const isMinLimitMonth = () => {return showDate.value.year <= copyMinDate.value.year && showDate.value.month <= copyMinDate.value.month;};// 判断是否为最大月份限制const isMaxLimitMonth = () => {return showDate.value.year >= copyMaxDate.value.year && showDate.value.month >= copyMaxDate.value.month;};// 打开年份列表const openYearList = () => {if (showYear.value) {showYear.value = false;showMonth.value = false;return;}const index = yearList.value.indexOf(selectDate.value.year);showYear.value = true;showMonth.value = false;setTimeout(() => {if (yearListRef.value) {yearListRef.value.scrollTop = (index - 3) * 40;}});};// 打开月份列表const openMonthList = () => {if (showMonth.value) {showYear.value = false;showMonth.value = false;return;}const index = monthList.value.indexOf(selectDate.value.month);showMonth.value = true;showYear.value = false;setTimeout(() => {if (monthListRef.value) {monthListRef.value.scrollTop = (index - 3) * 20;}});};const openCalendarList = () => {showYear.value = false;};// 定义函数，接收一个 number 类型的参数，返回一个 string 类型的值const keepDoubleDigit = (number: number): string => {// 判断传入的数字是否大于 9return number > 9? String(number) : `0${number}`;};// 清除日期的方法const clearDate = () => {selectedDateText.value = '';showCalendar.value = false;};// 点击文本框和日期组件以外的区域，隐藏日期组件const handleClickOutside = (event: MouseEvent) => {if (calendarRef.value &&inputRef.value &&!calendarRef.value.contains(event.target as Node) &&!inputRef.value.contains(event.target as Node)) {showCalendar.value = false;}};const isYearHovered = (index: number) => hoveredYearIndex.value === index;const isMonthHovered = (index: number) => hoveredMonthIndex.value === index;const isDayHovered = (col: number, row: number) =>hoveredDayIndex.value.row === row && hoveredDayIndex.value.col === col;const handleYearMouseEnter = (index: number) => {hoveredYearIndex.value = index;};const handleYearMouseLeave = () => {hoveredYearIndex.value = -1;};const handleMonthMouseEnter = (index: number) => {hoveredMonthIndex.value = index;};const handleMonthMouseLeave = () => {hoveredMonthIndex.value = -1;};const handleDayMouseEnter = (col: number, row: number) => {hoveredDayIndex.value = { row, col };};const handleDayMouseLeave = () => {hoveredDayIndex.value = { row: -1, col: -1 };};onMounted(() => {document.addEventListener('click', handleClickOutside);});onUnmounted(() => {document.removeEventListener('click', handleClickOutside);});return {selectDate,showDate,copyMinDate,copyMaxDate,fadeXType,nextMonthClick,prevMonthClick,keepDoubleDigit,showYear,yearList,rows,yearListRef,prevMonth,nextMonth,selectDay,selectYear,openYearList,openMonthList,monthList,monthListRef,showMonth,selectMonth,openCalendarList,showCalendar,selectedDateText,clearDate,calendarRef,inputRef,isYearHovered,isMonthHovered,isDayHovered,handleYearMouseEnter,handleYearMouseLeave,handleMonthMouseEnter,handleMonthMouseLeave,handleDayMouseEnter,handleDayMouseLeave};},
});
</script><style lang="scss" scoped>
.e-calendar {background-color: #ffffff;width: 310px;border: 1px solid #ccc;box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}.date-picker-input-wrapper {position: relative;display: inline-block;
}.date-picker-input {width: 200px;padding: 10px 15px;border: 1px solid #ccc;border-radius: 4px;font-size: 14px;color: #333;box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);transition: border-color 0.3s ease;
}.date-picker-input:focus {outline: none;border-color: #00bcd4;box-shadow: 0 0 5px rgba(0, 188, 212, 0.5);
}.clear-date-button {position: absolute;right: 10px;top: 50%;transform: translateY(-50%);cursor: pointer;width: 20px;height: 20px;display: flex;align-items: center;justify-content: center;
}.clear-date-button svg {fill: #999;width: 16px;height: 16px;
}.clear-date-button:hover svg {fill: #333;
}.e-date-year {font-size: 18px;padding-bottom: 4px;position: relative;width: 66px;height: 25px;overflow: hidden;cursor: pointer;
}.e-date-year-select {position: absolute;opacity: 0.7;font-size: 20px;
}.e-date-year-select.active {opacity: 1;
}.e-date-monthday {font-size: 26px;position: relative;width: 100%;height: 36px;overflow: hidden;
}.e-date-monthday-select {position: absolute;opacity: 0.7;
}.e-date-monthday-select.active {opacity: 1;
}.e-calendar-toolbar {margin: 5px 10px 5px 10px;height: 40px;display: flex;justify-content: space-between;align-items: center;
}.e-calendar-toolbar-title {position: relative;width: 100px;height: 22px;text-align: center;
}.e-calendar-toolbar-title-content {position: absolute;width: 100%;font-size: 16px;
}.e-calendar-svg {padding: 8px;position: relative;height: 40px;width: 40px;display: flex;justify-content: center;align-items: center;
}.e-calendar-svg-icon {display: block;fill: currentColor;height: 24px;width: 24px;user-select: none;position: relative;z-index: 2;
}.e-calendar-svg-cover {position: absolute;left: 0;top: 0;z-index: 1;width: 100%;height: 100%;background-color: #e0e0e0;border-radius: 50%;opacity: 0;display: inline-block;
}.e-calendar-week {width: 100%;font-size: 12px;color: rgba(0, 0, 0, 0.87);opacity: 0.5;display: flex;justify-content: center;align-items: center;height: 16px;
}.e-calendar-week-day {flex: 1;text-align: center;
}.e-calendar-monthday {padding-top: 10px;font-size: 14px;position: relative;width: 100%;min-height: 210px;overflow: hidden;
}.e-calendar-monthday-wrapper {position: absolute;width: 100%;height: 100%;
}.e-calendar-monthday-row {display: flex;justify-content: center;align-items: center;
}.e-calendar-monthday-row-day {display: flex;justify-content: center;align-items: center;flex: 1;position: relative;height: 35px;
}.e-calendar-monthday-row-day.pointer {cursor: pointer;
}.e-calendar-monthday-row-day.active {color: #ffffff;
}.e-calendar-monthday-row-day.disabled {opacity: 0.4;cursor: not-allowed;
}.e-calendar-monthday-row-day-value {position: relative;z-index: 1;
}.e-calendar-monthday-row-day-cover {width: 25px;height: 25px;background-color: #00bcd4;position: absolute;left: 10px;top: 5px;transform: translate3d(0, 0, 0);z-index: 0;border-radius: 50%;opacity: 1;display: block;
}.e-calendar-monthday-row-day.hover {background-color: #e0e0e0; /* 鼠标悬停时的背景颜色，可按需调整 */
}.e-calendar-year {height: 276px;overflow: auto;
}.e-calendar-year li {padding: 10px;text-align: center;font-size: 16px;cursor: pointer;
}.e-calendar-year li.active {color: #00bcd4;font-size: 20px;font-weight: bold;
}.e-calendar-year li.hover {background-color: #e0e0e0; /* 这里设置鼠标悬停时的背景颜色，可按需调整 */
}.fadeX_Prev-enter-active,
.fadeX_Prev-leave-active,
.fadeX_Next-enter-active,
.fadeX_Next-leave-active,
.fadeY-enter-active,
.fadeY-leave-active {transition: all 0.5s;
}.fadeX_Prev-enter {transform: translateX(-100px);opacity: 0;
}.fadeX_Prev-leave-active {transform: translateX(100px);opacity: 0;
}.fadeX_Next-enter {transform: translateX(100px);opacity: 0;
}.fadeX_Next-leave-active {transform: translateX(-100px);opacity: 0;
}.fadeY-enter {transform: translateY(30px);opacity: 0;
}.fadeY-leave-active {transform: translateY(-30px);opacity: 0;
}.e_calendar_svg_btn-enter-active,
.e_calendar_svg_btn-leave-active {transition: all 1s;
}.e_calendar_svg_btn-enter {opacity: 1;
}.e_calendar_day-enter-active {transition: all 0.2s;
}.e_calendar_svg_btn-leave-active,
.e_calendar_day-enter {opacity: 0;
}.e_calendar_day-enter {width: 0;height: 0;transform: translate3d(12px, 12px, 0);
}
</style>

调用的地方变化不大

<template><DatePicker:date="selectedDate":minDate="minDate":maxDate="maxDate"@confirm="onDateConfirm"@cancel="hideDatePicker"/>
</template><script setup lang="ts"> 
import { ref } from 'vue'; 
import DatePicker from './components/gantt/DatePicker.vue';  
import dayjs from 'dayjs'; // 存储当前选择的日期，初始值为空 
let selectedDate = ref(dayjs().format('YYYY-MM-DD')); 
// 日期的最小值 
const minDate = ref('2000-01-01'); 
// 日期的最大值 
const maxDate = ref('2030-12-31'); // 处理日期选择确认事件 
const onDateConfirm = (dateInfo: { date: string; }) => { selectedDate.value  = dateInfo.date;  console.log('选择的日期信息:', dateInfo);
}; 
const hideDatePicker = () => { // 可以根据需求添加隐藏逻辑，这里暂时不做处理
}; 
</script>