298 lines
10 KiB
JavaScript
298 lines
10 KiB
JavaScript
import { VantComponent } from '../common/component';
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import { isDef } from '../common/utils';
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import { pickerProps } from '../picker/shared';
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const currentYear = new Date().getFullYear();
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function isValidDate(date) {
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return isDef(date) && !isNaN(new Date(date).getTime());
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}
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function range(num, min, max) {
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return Math.min(Math.max(num, min), max);
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}
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function padZero(val) {
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return `00${val}`.slice(-2);
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}
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function times(n, iteratee) {
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let index = -1;
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const result = Array(n < 0 ? 0 : n);
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while (++index < n) {
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result[index] = iteratee(index);
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}
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return result;
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}
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function getTrueValue(formattedValue) {
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if (!formattedValue)
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return;
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while (isNaN(parseInt(formattedValue, 10))) {
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formattedValue = formattedValue.slice(1);
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}
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return parseInt(formattedValue, 10);
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}
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function getMonthEndDay(year, month) {
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return 32 - new Date(year, month - 1, 32).getDate();
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}
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const defaultFormatter = (_, value) => value;
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VantComponent({
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classes: ['active-class', 'toolbar-class', 'column-class'],
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props: Object.assign(Object.assign({}, pickerProps), { value: null, filter: null, type: {
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type: String,
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value: 'datetime'
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}, showToolbar: {
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type: Boolean,
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value: true
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}, formatter: {
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type: null,
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value: defaultFormatter
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}, minDate: {
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type: Number,
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value: new Date(currentYear - 10, 0, 1).getTime()
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}, maxDate: {
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type: Number,
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value: new Date(currentYear + 10, 11, 31).getTime()
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}, minHour: {
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type: Number,
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value: 0
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}, maxHour: {
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type: Number,
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value: 23
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}, minMinute: {
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type: Number,
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value: 0
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}, maxMinute: {
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type: Number,
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value: 59
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} }),
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data: {
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innerValue: Date.now(),
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columns: []
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},
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watch: {
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value: 'updateValue',
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type: 'updateValue',
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minDate: 'updateValue',
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maxDate: 'updateValue',
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minHour: 'updateValue',
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maxHour: 'updateValue',
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minMinute: 'updateValue',
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maxMinute: 'updateValue'
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},
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methods: {
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updateValue() {
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const { data } = this;
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const val = this.correctValue(this.data.value);
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const isEqual = val === data.innerValue;
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if (!isEqual) {
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this.updateColumnValue(val).then(() => {
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this.$emit('input', val);
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});
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}
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else {
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this.updateColumns();
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}
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},
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getPicker() {
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if (this.picker == null) {
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this.picker = this.selectComponent('.van-datetime-picker');
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const { picker } = this;
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const { setColumnValues } = picker;
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picker.setColumnValues = (...args) => setColumnValues.apply(picker, [...args, false]);
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}
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return this.picker;
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},
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updateColumns() {
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const { formatter = defaultFormatter } = this.data;
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const results = this.getOriginColumns().map(column => ({
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values: column.values.map(value => formatter(column.type, value))
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}));
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return this.set({ columns: results });
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},
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getOriginColumns() {
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const { filter } = this.data;
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const results = this.getRanges().map(({ type, range }) => {
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let values = times(range[1] - range[0] + 1, index => {
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let value = range[0] + index;
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value = type === 'year' ? `${value}` : padZero(value);
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return value;
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});
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if (filter) {
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values = filter(type, values);
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}
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return { type, values };
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});
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return results;
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},
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getRanges() {
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const { data } = this;
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if (data.type === 'time') {
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return [
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{
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type: 'hour',
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range: [data.minHour, data.maxHour]
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},
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{
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type: 'minute',
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range: [data.minMinute, data.maxMinute]
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}
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];
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}
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const { maxYear, maxDate, maxMonth, maxHour, maxMinute } = this.getBoundary('max', data.innerValue);
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const { minYear, minDate, minMonth, minHour, minMinute } = this.getBoundary('min', data.innerValue);
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const result = [
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{
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type: 'year',
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range: [minYear, maxYear]
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},
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{
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type: 'month',
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range: [minMonth, maxMonth]
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},
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{
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type: 'day',
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range: [minDate, maxDate]
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},
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{
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type: 'hour',
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range: [minHour, maxHour]
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},
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{
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type: 'minute',
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range: [minMinute, maxMinute]
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}
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];
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if (data.type === 'date')
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result.splice(3, 2);
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if (data.type === 'year-month')
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result.splice(2, 3);
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return result;
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},
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correctValue(value) {
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const { data } = this;
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// validate value
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const isDateType = data.type !== 'time';
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if (isDateType && !isValidDate(value)) {
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value = data.minDate;
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}
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else if (!isDateType && !value) {
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const { minHour } = data;
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value = `${padZero(minHour)}:00`;
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}
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// time type
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if (!isDateType) {
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let [hour, minute] = value.split(':');
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hour = padZero(range(hour, data.minHour, data.maxHour));
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minute = padZero(range(minute, data.minMinute, data.maxMinute));
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return `${hour}:${minute}`;
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}
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// date type
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value = Math.max(value, data.minDate);
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value = Math.min(value, data.maxDate);
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return value;
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},
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getBoundary(type, innerValue) {
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const value = new Date(innerValue);
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const boundary = new Date(this.data[`${type}Date`]);
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const year = boundary.getFullYear();
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let month = 1;
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let date = 1;
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let hour = 0;
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let minute = 0;
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if (type === 'max') {
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month = 12;
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date = getMonthEndDay(value.getFullYear(), value.getMonth() + 1);
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hour = 23;
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minute = 59;
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}
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if (value.getFullYear() === year) {
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month = boundary.getMonth() + 1;
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if (value.getMonth() + 1 === month) {
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date = boundary.getDate();
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if (value.getDate() === date) {
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hour = boundary.getHours();
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if (value.getHours() === hour) {
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minute = boundary.getMinutes();
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}
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}
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}
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}
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return {
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[`${type}Year`]: year,
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[`${type}Month`]: month,
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[`${type}Date`]: date,
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[`${type}Hour`]: hour,
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[`${type}Minute`]: minute
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};
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},
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onCancel() {
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this.$emit('cancel');
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},
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onConfirm() {
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this.$emit('confirm', this.data.innerValue);
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},
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onChange() {
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const { data } = this;
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let value;
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const picker = this.getPicker();
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if (data.type === 'time') {
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const indexes = picker.getIndexes();
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value = `${+data.columns[0].values[indexes[0]]}:${+data.columns[1].values[indexes[1]]}`;
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}
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else {
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const values = picker.getValues();
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const year = getTrueValue(values[0]);
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const month = getTrueValue(values[1]);
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const maxDate = getMonthEndDay(year, month);
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let date = getTrueValue(values[2]);
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if (data.type === 'year-month') {
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date = 1;
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}
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date = date > maxDate ? maxDate : date;
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let hour = 0;
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let minute = 0;
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if (data.type === 'datetime') {
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hour = getTrueValue(values[3]);
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minute = getTrueValue(values[4]);
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}
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value = new Date(year, month - 1, date, hour, minute);
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}
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value = this.correctValue(value);
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this.updateColumnValue(value).then(() => {
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this.$emit('input', value);
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this.$emit('change', picker);
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});
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},
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updateColumnValue(value) {
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let values = [];
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const { type, formatter = defaultFormatter } = this.data;
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const picker = this.getPicker();
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if (type === 'time') {
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const pair = value.split(':');
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values = [
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formatter('hour', pair[0]),
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formatter('minute', pair[1])
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];
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}
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else {
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const date = new Date(value);
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values = [
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formatter('year', `${date.getFullYear()}`),
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formatter('month', padZero(date.getMonth() + 1))
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];
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if (type === 'date') {
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values.push(formatter('day', padZero(date.getDate())));
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}
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if (type === 'datetime') {
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values.push(formatter('day', padZero(date.getDate())), formatter('hour', padZero(date.getHours())), formatter('minute', padZero(date.getMinutes())));
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}
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}
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return this.set({ innerValue: value })
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.then(() => this.updateColumns())
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.then(() => picker.setValues(values));
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}
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},
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created() {
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const innerValue = this.correctValue(this.data.value);
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this.updateColumnValue(innerValue).then(() => {
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this.$emit('input', innerValue);
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});
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}
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});
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