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node_modules/@vant/weapp/dist/calendar/components/month/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: null,
+        formatter: {
+            type: null,
+            observer: 'setDays',
+        },
+        currentDate: {
+            type: null,
+            observer: 'setDays',
+        },
+        firstDayOfWeek: {
+            type: Number,
+            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';
+            }
+            return '';
+        },
+        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);
+            }
+            return '';
+        },
+        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';
+                }
+            }
+        },
+    },
+});