ngx-bootstrap/datepicker/engine/flag-days-calendar.js

Native Angular Bootstrap Components

import { isSameDay, isSameMonth } from '../../bs-moment/utils/date-getters';
import { isAfter, isBefore } from '../../bs-moment/utils/date-compare';
import { isMonthDisabled } from '../utils/bs-calendar-utils';
import { shiftDate } from '../../bs-moment/utils/date-setters';
export function flagDaysCalendar(formattedMonth, options) {
    formattedMonth.weeks
        .forEach(function (week, weekIndex) {
        week.days.forEach(function (day, dayIndex) {
            // datepicker
            var isOtherMonth = !isSameMonth(day.date, formattedMonth.month);
            var isHovered = !isOtherMonth && isSameDay(day.date, options.hoveredDate);
            // date range picker
            var isSelectionStart = !isOtherMonth
                && options.selectedRange
                && isSameDay(day.date, options.selectedRange[0]);
            var isSelectionEnd = !isOtherMonth
                && options.selectedRange
                && isSameDay(day.date, options.selectedRange[1]);
            var isSelected = !isOtherMonth && isSameDay(day.date, options.selectedDate) ||
                isSelectionStart || isSelectionEnd;
            var isInRange = !isOtherMonth
                && options.selectedRange
                && isDateInRange(day.date, options.selectedRange, options.hoveredDate);
            var isDisabled = options.isDisabled
                || isBefore(day.date, options.minDate, 'day')
                || isAfter(day.date, options.maxDate, 'day');
            // decide update or not
            var newDay = Object.assign({}, day, {
                isOtherMonth: isOtherMonth,
                isHovered: isHovered,
                isSelected: isSelected,
                isSelectionStart: isSelectionStart,
                isSelectionEnd: isSelectionEnd,
                isInRange: isInRange,
                isDisabled: isDisabled
            });
            if (day.isOtherMonth !== newDay.isOtherMonth ||
                day.isHovered !== newDay.isHovered ||
                day.isSelected !== newDay.isSelected ||
                day.isSelectionStart !== newDay.isSelectionStart ||
                day.isSelectionEnd !== newDay.isSelectionEnd ||
                day.isDisabled !== newDay.isDisabled ||
                day.isInRange !== newDay.isInRange) {
                week.days[dayIndex] = newDay;
            }
        });
    });
    // todo: add check for linked calendars
    formattedMonth.hideLeftArrow = options.isDisabled
        || (options.monthIndex > 0
            && options.monthIndex !== options.displayMonths);
    formattedMonth.hideRightArrow = options.isDisabled
        || (options.monthIndex < options.displayMonths
            && (options.monthIndex + 1) !== options.displayMonths);
    formattedMonth.disableLeftArrow = isMonthDisabled(shiftDate(formattedMonth.month, { month: -1 }), options.minDate, options.maxDate);
    formattedMonth.disableRightArrow = isMonthDisabled(shiftDate(formattedMonth.month, { month: 1 }), options.minDate, options.maxDate);
    return formattedMonth;
}
function isDateInRange(date, selectedRange, hoveredDate) {
    if (!date || !selectedRange[0]) {
        return false;
    }
    if (selectedRange[1]) {
        return date > selectedRange[0] && date <= selectedRange[1];
    }
    if (hoveredDate) {
        return date > selectedRange[0] && date <= hoveredDate;
    }
    return false;
}
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