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+<template>
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+<uni-shadow-root class="vant-datetime-picker-index"><van-picker class="van-datetime-picker" active-class="active-class" toolbar-class="toolbar-class" column-class="column-class" :title="title" :columns="columns" :item-height="itemHeight" :show-toolbar="showToolbar" :visible-item-count="visibleItemCount" :confirm-button-text="confirmButtonText" :cancel-button-text="cancelButtonText" @change="onChange" @confirm="onConfirm" @cancel="onCancel"></van-picker></uni-shadow-root>
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+</template>
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+
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+<script>
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+import VanPicker from '../picker/index.vue'
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+global['__wxVueOptions'] = {components:{'van-picker': VanPicker}}
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+
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+global['__wxRoute'] = 'vant/datetime-picker/index'
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+import { VantComponent } from '../common/component';
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+import { isDef } from '../common/validator';
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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 === undefined) {
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+ formattedValue = '1';
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+ }
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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 = (type, 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: {
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+ type: null,
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+ observer: 'updateValue',
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+ }, filter: null, type: {
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+ type: String,
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+ value: 'datetime',
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+ observer: 'updateValue',
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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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+ observer: 'updateValue',
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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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+ observer: 'updateValue',
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+ }, minHour: {
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+ type: Number,
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+ value: 0,
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+ observer: 'updateValue',
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+ }, maxHour: {
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+ type: Number,
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+ value: 23,
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+ observer: 'updateValue',
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+ }, minMinute: {
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+ type: Number,
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+ value: 0,
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+ observer: 'updateValue',
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+ }, maxMinute: {
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+ type: Number,
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+ value: 59,
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+ observer: 'updateValue',
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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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+ methods: {
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+ updateValue() {
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+ const { data } = this;
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+ const val = this.correctValue(data.value);
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+ const isEqual = val === data.innerValue;
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+ this.updateColumnValue(val).then(() => {
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+ if (!isEqual) {
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+ this.$emit('input', val);
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+ }
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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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+ const value = range[0] + index;
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+ return type === 'year' ? `${value}` : padZero(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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+ const originColumns = this.getOriginColumns();
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+ if (data.type === 'time') {
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+ const indexes = picker.getIndexes();
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+ value = `${+originColumns[0].values[indexes[0]]}:${+originColumns[1]
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+ .values[indexes[1]]}`;
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+ }
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+ else {
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+ const indexes = picker.getIndexes();
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+ const values = indexes.map((value, index) => originColumns[index].values[value]);
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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 } = this.data;
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+ const formatter = this.data.formatter || defaultFormatter;
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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 = [formatter('hour', pair[0]), formatter('minute', pair[1])];
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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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+export default global['__wxComponents']['vant/datetime-picker/index']
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+</script>
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+<style platform="mp-weixin">
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+@import '../common/index.css';
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+</style>
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