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361 lines
12 KiB
361 lines
12 KiB
6 months ago
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import { VantComponent } from '../common/component';
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import { ROW_HEIGHT, getPrevDay, getNextDay, getToday, compareDay, copyDates, calcDateNum, formatMonthTitle, compareMonth, getMonths, getDayByOffset, } from './utils';
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import Toast from '../toast/toast';
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import { requestAnimationFrame } from '../common/utils';
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const initialMinDate = getToday().getTime();
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const initialMaxDate = (() => {
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const now = getToday();
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return new Date(now.getFullYear(), now.getMonth() + 6, now.getDate()).getTime();
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})();
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const getTime = (date) => date instanceof Date ? date.getTime() : date;
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VantComponent({
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props: {
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title: {
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type: String,
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value: '日期选择',
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},
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color: String,
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show: {
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type: Boolean,
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observer(val) {
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if (val) {
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this.initRect();
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this.scrollIntoView();
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}
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},
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},
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formatter: null,
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confirmText: {
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type: String,
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value: '确定',
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},
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confirmDisabledText: {
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type: String,
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value: '确定',
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},
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rangePrompt: String,
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showRangePrompt: {
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type: Boolean,
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value: true,
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},
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defaultDate: {
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type: null,
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value: getToday().getTime(),
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observer(val) {
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this.setData({ currentDate: val });
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this.scrollIntoView();
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},
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},
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allowSameDay: Boolean,
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type: {
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type: String,
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value: 'single',
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observer: 'reset',
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},
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minDate: {
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type: Number,
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value: initialMinDate,
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},
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maxDate: {
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type: Number,
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value: initialMaxDate,
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},
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position: {
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type: String,
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value: 'bottom',
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},
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rowHeight: {
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type: null,
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value: ROW_HEIGHT,
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},
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round: {
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type: Boolean,
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value: true,
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},
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poppable: {
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type: Boolean,
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value: true,
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},
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showMark: {
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type: Boolean,
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value: true,
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},
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showTitle: {
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type: Boolean,
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value: true,
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},
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showConfirm: {
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type: Boolean,
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value: true,
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},
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showSubtitle: {
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type: Boolean,
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value: true,
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},
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safeAreaInsetBottom: {
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type: Boolean,
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value: true,
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},
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closeOnClickOverlay: {
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type: Boolean,
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value: true,
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},
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maxRange: {
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type: null,
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value: null,
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},
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minRange: {
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type: Number,
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value: 1,
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},
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firstDayOfWeek: {
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type: Number,
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value: 0,
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},
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readonly: Boolean,
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rootPortal: {
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type: Boolean,
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value: false,
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},
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},
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data: {
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subtitle: '',
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currentDate: null,
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scrollIntoView: '',
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},
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watch: {
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minDate() {
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this.initRect();
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},
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maxDate() {
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this.initRect();
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},
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},
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created() {
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this.setData({
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currentDate: this.getInitialDate(this.data.defaultDate),
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});
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},
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mounted() {
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if (this.data.show || !this.data.poppable) {
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this.initRect();
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this.scrollIntoView();
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}
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},
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methods: {
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reset() {
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this.setData({ currentDate: this.getInitialDate(this.data.defaultDate) });
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this.scrollIntoView();
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},
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initRect() {
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if (this.contentObserver != null) {
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this.contentObserver.disconnect();
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}
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const contentObserver = this.createIntersectionObserver({
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thresholds: [0, 0.1, 0.9, 1],
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observeAll: true,
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});
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this.contentObserver = contentObserver;
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contentObserver.relativeTo('.van-calendar__body');
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contentObserver.observe('.month', (res) => {
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if (res.boundingClientRect.top <= res.relativeRect.top) {
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// @ts-ignore
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this.setData({ subtitle: formatMonthTitle(res.dataset.date) });
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}
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});
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},
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limitDateRange(date, minDate = null, maxDate = null) {
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minDate = minDate || this.data.minDate;
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maxDate = maxDate || this.data.maxDate;
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if (compareDay(date, minDate) === -1) {
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return minDate;
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}
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if (compareDay(date, maxDate) === 1) {
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return maxDate;
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}
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return date;
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},
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getInitialDate(defaultDate = null) {
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const { type, minDate, maxDate, allowSameDay } = this.data;
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if (!defaultDate)
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return [];
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const now = getToday().getTime();
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if (type === 'range') {
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if (!Array.isArray(defaultDate)) {
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defaultDate = [];
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}
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const [startDay, endDay] = defaultDate || [];
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const startDate = getTime(startDay || now);
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const start = this.limitDateRange(startDate, minDate, allowSameDay ? startDate : getPrevDay(new Date(maxDate)).getTime());
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const date = getTime(endDay || now);
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const end = this.limitDateRange(date, allowSameDay ? date : getNextDay(new Date(minDate)).getTime());
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return [start, end];
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}
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if (type === 'multiple') {
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if (Array.isArray(defaultDate)) {
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return defaultDate.map((date) => this.limitDateRange(date));
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}
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return [this.limitDateRange(now)];
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}
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if (!defaultDate || Array.isArray(defaultDate)) {
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defaultDate = now;
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}
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return this.limitDateRange(defaultDate);
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},
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scrollIntoView() {
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requestAnimationFrame(() => {
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const { currentDate, type, show, poppable, minDate, maxDate } = this.data;
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if (!currentDate)
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return;
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// @ts-ignore
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const targetDate = type === 'single' ? currentDate : currentDate[0];
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const displayed = show || !poppable;
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if (!targetDate || !displayed) {
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return;
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}
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const months = getMonths(minDate, maxDate);
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months.some((month, index) => {
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if (compareMonth(month, targetDate) === 0) {
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this.setData({ scrollIntoView: `month${index}` });
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return true;
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}
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return false;
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});
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});
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},
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onOpen() {
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this.$emit('open');
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},
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onOpened() {
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this.$emit('opened');
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},
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onClose() {
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this.$emit('close');
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},
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onClosed() {
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this.$emit('closed');
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},
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onClickDay(event) {
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if (this.data.readonly) {
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return;
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}
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let { date } = event.detail;
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const { type, currentDate, allowSameDay } = this.data;
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if (type === 'range') {
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// @ts-ignore
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const [startDay, endDay] = currentDate;
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if (startDay && !endDay) {
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const compareToStart = compareDay(date, startDay);
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if (compareToStart === 1) {
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const { days } = this.selectComponent('.month').data;
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days.some((day, index) => {
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const isDisabled = day.type === 'disabled' &&
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getTime(startDay) < getTime(day.date) &&
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getTime(day.date) < getTime(date);
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if (isDisabled) {
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({ date } = days[index - 1]);
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}
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return isDisabled;
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});
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this.select([startDay, date], true);
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}
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else if (compareToStart === -1) {
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this.select([date, null]);
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}
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else if (allowSameDay) {
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this.select([date, date], true);
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}
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}
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else {
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this.select([date, null]);
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}
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}
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else if (type === 'multiple') {
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let selectedIndex;
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// @ts-ignore
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const selected = currentDate.some((dateItem, index) => {
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const equal = compareDay(dateItem, date) === 0;
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if (equal) {
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selectedIndex = index;
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}
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return equal;
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});
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if (selected) {
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// @ts-ignore
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const cancelDate = currentDate.splice(selectedIndex, 1);
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this.setData({ currentDate });
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this.unselect(cancelDate);
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}
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else {
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// @ts-ignore
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this.select([...currentDate, date]);
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}
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}
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else {
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this.select(date, true);
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}
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},
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unselect(dateArray) {
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const date = dateArray[0];
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if (date) {
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this.$emit('unselect', copyDates(date));
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}
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},
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select(date, complete) {
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if (complete && this.data.type === 'range') {
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const valid = this.checkRange(date);
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if (!valid) {
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// auto selected to max range if showConfirm
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if (this.data.showConfirm) {
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this.emit([
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date[0],
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getDayByOffset(date[0], this.data.maxRange - 1),
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]);
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}
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else {
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this.emit(date);
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}
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return;
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}
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}
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this.emit(date);
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if (complete && !this.data.showConfirm) {
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this.onConfirm();
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}
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},
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emit(date) {
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this.setData({
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currentDate: Array.isArray(date) ? date.map(getTime) : getTime(date),
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});
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this.$emit('select', copyDates(date));
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},
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checkRange(date) {
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const { maxRange, rangePrompt, showRangePrompt } = this.data;
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if (maxRange && calcDateNum(date) > maxRange) {
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if (showRangePrompt) {
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Toast({
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context: this,
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message: rangePrompt || `选择天数不能超过 ${maxRange} 天`,
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});
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}
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this.$emit('over-range');
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return false;
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}
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return true;
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},
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onConfirm() {
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if (this.data.type === 'range' &&
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!this.checkRange(this.data.currentDate)) {
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return;
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}
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wx.nextTick(() => {
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// @ts-ignore
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this.$emit('confirm', copyDates(this.data.currentDate));
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});
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},
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onClickSubtitle(event) {
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this.$emit('click-subtitle', event);
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},
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},
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});
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