index.js
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import { VantComponent } from '../../../common/component';
import {
getMonthEndDay,
compareDay,
getPrevDay,
getNextDay,
} from '../../utils';
VantComponent({
props: {
date: {
type: null,
observer: 'setDays',
},
type: {
type: String,
observer: 'setDays',
},
color: String,
minDate: {
type: null,
observer: 'setDays',
},
maxDate: {
type: null,
observer: 'setDays',
},
showMark: Boolean,
rowHeight: [Number, String],
formatter: {
type: null,
observer: 'setDays',
},
currentDate: {
type: [null, Array],
observer: 'setDays',
},
allowSameDay: Boolean,
showSubtitle: Boolean,
showMonthTitle: Boolean,
},
data: {
visible: true,
days: [],
},
methods: {
onClick(event) {
const { index } = event.currentTarget.dataset;
const item = this.data.days[index];
if (item.type !== 'disabled') {
this.$emit('click', item);
}
},
setDays() {
const days = [];
const startDate = new Date(this.data.date);
const year = startDate.getFullYear();
const month = startDate.getMonth();
const totalDay = getMonthEndDay(
startDate.getFullYear(),
startDate.getMonth() + 1
);
for (let day = 1; day <= totalDay; day++) {
const date = new Date(year, month, day);
const type = this.getDayType(date);
let config = {
date,
type,
text: day,
bottomInfo: this.getBottomInfo(type),
};
if (this.data.formatter) {
config = this.data.formatter(config);
}
days.push(config);
}
this.setData({ days });
},
getMultipleDayType(day) {
const { currentDate } = this.data;
if (!Array.isArray(currentDate)) {
return '';
}
const isSelected = (date) =>
currentDate.some((item) => compareDay(item, date) === 0);
if (isSelected(day)) {
const prevDay = getPrevDay(day);
const nextDay = getNextDay(day);
const prevSelected = isSelected(prevDay);
const nextSelected = isSelected(nextDay);
if (prevSelected && nextSelected) {
return 'multiple-middle';
}
if (prevSelected) {
return 'end';
}
return nextSelected ? 'start' : 'multiple-selected';
}
return '';
},
getRangeDayType(day) {
const { currentDate, allowSameDay } = this.data;
if (!Array.isArray(currentDate)) {
return;
}
const [startDay, endDay] = currentDate;
if (!startDay) {
return;
}
const compareToStart = compareDay(day, startDay);
if (!endDay) {
return compareToStart === 0 ? 'start' : '';
}
const compareToEnd = compareDay(day, endDay);
if (compareToStart === 0 && compareToEnd === 0 && allowSameDay) {
return 'start-end';
}
if (compareToStart === 0) {
return 'start';
}
if (compareToEnd === 0) {
return 'end';
}
if (compareToStart > 0 && compareToEnd < 0) {
return 'middle';
}
},
getDayType(day) {
const { type, minDate, maxDate, currentDate } = this.data;
if (compareDay(day, minDate) < 0 || compareDay(day, maxDate) > 0) {
return 'disabled';
}
if (type === 'single') {
return compareDay(day, currentDate) === 0 ? 'selected' : '';
}
if (type === 'multiple') {
return this.getMultipleDayType(day);
}
/* istanbul ignore else */
if (type === 'range') {
return this.getRangeDayType(day);
}
},
getBottomInfo(type) {
if (this.data.type === 'range') {
if (type === 'start') {
return '开始';
}
if (type === 'end') {
return '结束';
}
if (type === 'start-end') {
return '开始/结束';
}
}
},
},
});