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@ng-bootstrap/ng-bootstrap

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import { NgbDate } from './ngb-date'; export function isChangedDate(prev, next) { return !dateComparator(prev, next); } export function isChangedMonth(prev, next) { return !prev && !next ? false : !prev || !next ? true : prev.year !== next.year || prev.month !== next.month; } export function dateComparator(prev, next) { return (!prev && !next) || (!!prev && !!next && prev.equals(next)); } export function checkMinBeforeMax(minDate, maxDate) { if (maxDate && minDate && maxDate.before(minDate)) { throw new Error(`'maxDate' ${maxDate} should be greater than 'minDate' ${minDate}`); } } export function checkDateInRange(date, minDate, maxDate) { if (date && minDate && date.before(minDate)) { return minDate; } if (date && maxDate && date.after(maxDate)) { return maxDate; } return date || null; } export function isDateSelectable(date, state) { const { minDate, maxDate, disabled, markDisabled } = state; // clang-format off return !(date === null || date === undefined || disabled || (markDisabled && markDisabled(date, { year: date.year, month: date.month })) || (minDate && date.before(minDate)) || (maxDate && date.after(maxDate))); // clang-format on } export function generateSelectBoxMonths(calendar, date, minDate, maxDate) { if (!date) { return []; } let months = calendar.getMonths(date.year); if (minDate && date.year === minDate.year) { const index = months.findIndex(month => month === minDate.month); months = months.slice(index); } if (maxDate && date.year === maxDate.year) { const index = months.findIndex(month => month === maxDate.month); months = months.slice(0, index + 1); } return months; } export function generateSelectBoxYears(date, minDate, maxDate) { if (!date) { return []; } const start = minDate ? Math.max(minDate.year, date.year - 500) : date.year - 10; const end = maxDate ? Math.min(maxDate.year, date.year + 500) : date.year + 10; const length = end - start + 1; const numbers = Array(length); for (let i = 0; i < length; i++) { numbers[i] = start + i; } return numbers; } export function nextMonthDisabled(calendar, date, maxDate) { const nextDate = Object.assign(calendar.getNext(date, 'm'), { day: 1 }); return maxDate != null && nextDate.after(maxDate); } export function prevMonthDisabled(calendar, date, minDate) { const prevDate = Object.assign(calendar.getPrev(date, 'm'), { day: 1 }); return minDate != null && (prevDate.year === minDate.year && prevDate.month < minDate.month || prevDate.year < minDate.year && minDate.month === 1); } export function buildMonths(calendar, date, state, i18n, force) { const { displayMonths, months } = state; // move old months to a temporary array const monthsToReuse = months.splice(0, months.length); // generate new first dates, nullify or reuse months const firstDates = Array.from({ length: displayMonths }, (_, i) => { const firstDate = Object.assign(calendar.getNext(date, 'm', i), { day: 1 }); months[i] = null; if (!force) { const reusedIndex = monthsToReuse.findIndex(month => month.firstDate.equals(firstDate)); // move reused month back to months if (reusedIndex !== -1) { months[i] = monthsToReuse.splice(reusedIndex, 1)[0]; } } return firstDate; }); // rebuild nullified months firstDates.forEach((firstDate, i) => { if (months[i] === null) { months[i] = buildMonth(calendar, firstDate, state, i18n, monthsToReuse.shift() || {}); } }); return months; } export function buildMonth(calendar, date, state, i18n, month = {}) { const { dayTemplateData, minDate, maxDate, firstDayOfWeek, markDisabled, outsideDays, weekdayWidth, weekdaysVisible } = state; const calendarToday = calendar.getToday(); month.firstDate = null; month.lastDate = null; month.number = date.month; month.year = date.year; month.weeks = month.weeks || []; month.weekdays = month.weekdays || []; date = getFirstViewDate(calendar, date, firstDayOfWeek); // clearing weekdays, if not visible if (!weekdaysVisible) { month.weekdays.length = 0; } // month has weeks for (let week = 0; week < calendar.getWeeksPerMonth(); week++) { let weekObject = month.weeks[week]; if (!weekObject) { weekObject = month.weeks[week] = { number: 0, days: [], collapsed: true }; } const days = weekObject.days; // week has days for (let day = 0; day < calendar.getDaysPerWeek(); day++) { if (week === 0 && weekdaysVisible) { month.weekdays[day] = i18n.getWeekdayLabel(calendar.getWeekday(date), weekdayWidth); } const newDate = new NgbDate(date.year, date.month, date.day); const nextDate = calendar.getNext(newDate); const ariaLabel = i18n.getDayAriaLabel(newDate); // marking date as disabled let disabled = !!((minDate && newDate.before(minDate)) || (maxDate && newDate.after(maxDate))); if (!disabled && markDisabled) { disabled = markDisabled(newDate, { month: month.number, year: month.year }); } // today let today = newDate.equals(calendarToday); // adding user-provided data to the context let contextUserData = dayTemplateData ? dayTemplateData(newDate, { month: month.number, year: month.year }) : undefined; // saving first date of the month if (month.firstDate === null && newDate.month === month.number) { month.firstDate = newDate; } // saving last date of the month if (newDate.month === month.number && nextDate.month !== month.number) { month.lastDate = newDate; } let dayObject = days[day]; if (!dayObject) { dayObject = days[day] = {}; } dayObject.date = newDate; dayObject.context = Object.assign(dayObject.context || {}, { $implicit: newDate, date: newDate, data: contextUserData, currentMonth: month.number, currentYear: month.year, disabled, focused: false, selected: false, today }); dayObject.tabindex = -1; dayObject.ariaLabel = ariaLabel; dayObject.hidden = false; date = nextDate; } weekObject.number = calendar.getWeekNumber(days.map(day => day.date), firstDayOfWeek); // marking week as collapsed weekObject.collapsed = outsideDays === 'collapsed' && days[0].date.month !== month.number && days[days.length - 1].date.month !== month.number; } return month; } export function getFirstViewDate(calendar, date, firstDayOfWeek) { const daysPerWeek = calendar.getDaysPerWeek(); const firstMonthDate = new NgbDate(date.year, date.month, 1); const dayOfWeek = calendar.getWeekday(firstMonthDate) % daysPerWeek; return calendar.getPrev(firstMonthDate, 'd', (daysPerWeek + dayOfWeek - firstDayOfWeek) % daysPerWeek); } //# 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{NgbDate} from './ngb-date';\nimport {DatepickerViewModel, DayViewModel, MonthViewModel} from './datepicker-view-model';\nimport {NgbCalendar} from './ngb-calendar';\nimport {NgbDatepickerI18n} from './datepicker-i18n';\n\nexport function isChangedDate(prev?: NgbDate | null, next?: NgbDate | null): boolean {\n  return !dateComparator(prev, next);\n}\n\nexport function isChangedMonth(prev?: NgbDate | null, next?: NgbDate | null): boolean {\n  return !prev && !next ? false : !prev || !next ? true : prev.year !== next.year || prev.month !== next.month;\n}\n\nexport function dateComparator(prev?: NgbDate | null, next?: NgbDate | null): boolean {\n  return (!prev && !next) || (!!prev && !!next && prev.equals(next));\n}\n\nexport function checkMinBeforeMax(minDate?: NgbDate | null, maxDate?: NgbDate | null): void {\n  if (maxDate && minDate && maxDate.before(minDate)) {\n    throw new Error(`'maxDate' ${maxDate} should be greater than 'minDate' ${minDate}`);\n  }\n}\n\nexport function checkDateInRange(date?: NgbDate | null, minDate?: NgbDate | null, maxDate?: NgbDate | null): NgbDate |\n    null {\n  if (date && minDate && date.before(minDate)) {\n    return minDate;\n  }\n  if (date && maxDate && date.after(maxDate)) {\n    return maxDate;\n  }\n\n  return date || null;\n}\n\nexport function isDateSelectable(date: NgbDate | null | undefined, state: DatepickerViewModel) {\n  const {minDate, maxDate, disabled, markDisabled} = state;\n  // clang-format off\n  return !(\n    date === null ||\n    date === undefined ||\n    disabled ||\n    (markDisabled && markDisabled(date, {year: date.year, month: date.month})) ||\n    (minDate && date.before(minDate)) ||\n    (maxDate && date.after(maxDate))\n  );\n  // clang-format on\n}\n\nexport function generateSelectBoxMonths(\n    calendar: NgbCalendar, date: NgbDate, minDate: NgbDate | null, maxDate: NgbDate | null) {\n  if (!date) {\n    return [];\n  }\n\n  let months = calendar.getMonths(date.year);\n\n  if (minDate && date.year === minDate.year) {\n    const index = months.findIndex(month => month === minDate.month);\n    months = months.slice(index);\n  }\n\n  if (maxDate && date.year === maxDate.year) {\n    const index = months.findIndex(month => month === maxDate.month);\n    months = months.slice(0, index + 1);\n  }\n\n  return months;\n}\n\nexport function generateSelectBoxYears(date: NgbDate, minDate: NgbDate | null, maxDate: NgbDate | null) {\n  if (!date) {\n    return [];\n  }\n\n  const start = minDate ? Math.max(minDate.year, date.year - 500) : date.year - 10;\n  const end = maxDate ? Math.min(maxDate.year, date.year + 500) : date.year + 10;\n\n  const length = end - start + 1;\n  const numbers = Array(length);\n  for (let i = 0; i < length; i++) {\n    numbers[i] = start + i;\n  }\n\n  return numbers;\n}\n\nexport function nextMonthDisabled(calendar: NgbCalendar, date: NgbDate, maxDate: NgbDate | null) {\n  const nextDate = Object.assign(calendar.getNext(date, 'm'), {day: 1});\n  return maxDate != null && nextDate.after(maxDate);\n}\n\nexport function prevMonthDisabled(calendar: NgbCalendar, date: NgbDate, minDate: NgbDate | null) {\n  const prevDate = Object.assign(calendar.getPrev(date, 'm'), {day: 1});\n  return minDate != null && (prevDate.year === minDate.year && prevDate.month < minDate.month ||\n                             prevDate.year < minDate.year && minDate.month === 1);\n}\n\nexport function buildMonths(\n    calendar: NgbCalendar, date: NgbDate, state: DatepickerViewModel, i18n: NgbDatepickerI18n,\n    force: boolean): MonthViewModel[] {\n  const {displayMonths, months} = state;\n  // move old months to a temporary array\n  const monthsToReuse = months.splice(0, months.length);\n\n  // generate new first dates, nullify or reuse months\n  const firstDates = Array.from({length: displayMonths}, (_, i) => {\n    const firstDate = Object.assign(calendar.getNext(date, 'm', i), {day: 1});\n    months[i] = <any>null;\n\n    if (!force) {\n      const reusedIndex = monthsToReuse.findIndex(month => month.firstDate.equals(firstDate));\n      // move reused month back to months\n      if (reusedIndex !== -1) {\n        months[i] = monthsToReuse.splice(reusedIndex, 1)[0];\n      }\n    }\n\n    return firstDate;\n  });\n\n  // rebuild nullified months\n  firstDates.forEach((firstDate, i) => {\n    if (months[i] === null) {\n      months[i] = buildMonth(calendar, firstDate, state, i18n, monthsToReuse.shift() || {} as MonthViewModel);\n    }\n  });\n\n  return months;\n}\n\nexport function buildMonth(\n    calendar: NgbCalendar, date: NgbDate, state: DatepickerViewModel, i18n: NgbDatepickerI18n,\n    month: MonthViewModel = {} as MonthViewModel): MonthViewModel {\n  const {dayTemplateData, minDate, maxDate, firstDayOfWeek, markDisabled, outsideDays, weekdayWidth, weekdaysVisible} =\n      state;\n  const calendarToday = calendar.getToday();\n\n  month.firstDate = <any>null;\n  month.lastDate = <any>null;\n  month.number = date.month;\n  month.year = date.year;\n  month.weeks = month.weeks || [];\n  month.weekdays = month.weekdays || [];\n\n  date = getFirstViewDate(calendar, date, firstDayOfWeek);\n\n  // clearing weekdays, if not visible\n  if (!weekdaysVisible) {\n    month.weekdays.length = 0;\n  }\n\n  // month has weeks\n  for (let week = 0; week < calendar.getWeeksPerMonth(); week++) {\n    let weekObject = month.weeks[week];\n    if (!weekObject) {\n      weekObject = month.weeks[week] = {number: 0, days: [], collapsed: true};\n    }\n    const days = weekObject.days;\n\n    // week has days\n    for (let day = 0; day < calendar.getDaysPerWeek(); day++) {\n      if (week === 0 && weekdaysVisible) {\n        month.weekdays[day] = i18n.getWeekdayLabel(calendar.getWeekday(date), weekdayWidth);\n      }\n\n      const newDate = new NgbDate(date.year, date.month, date.day);\n      const nextDate = calendar.getNext(newDate);\n\n      const ariaLabel = i18n.getDayAriaLabel(newDate);\n\n      // marking date as disabled\n      let disabled = !!((minDate && newDate.before(minDate)) || (maxDate && newDate.after(maxDate)));\n      if (!disabled && markDisabled) {\n        disabled = markDisabled(newDate, {month: month.number, year: month.year});\n      }\n\n      // today\n      let today = newDate.equals(calendarToday);\n\n      // adding user-provided data to the context\n      let contextUserData =\n          dayTemplateData ? dayTemplateData(newDate, {month: month.number, year: month.year}) : undefined;\n\n      // saving first date of the month\n      if (month.firstDate === null && newDate.month === month.number) {\n        month.firstDate = newDate;\n      }\n\n      // saving last date of the month\n      if (newDate.month === month.number && nextDate.month !== month.number) {\n        month.lastDate = newDate;\n      }\n\n      let dayObject = days[day];\n      if (!dayObject) {\n        dayObject = days[day] = {} as DayViewModel;\n      }\n      dayObject.date = newDate;\n      dayObject.context = Object.assign(dayObject.context || {}, {\n        $implicit: newDate,\n        date: newDate,\n        data: contextUserData,\n        currentMonth: month.number,\n        currentYear: month.year, disabled,\n        focused: false,\n        selected: false, today\n      });\n      dayObject.tabindex = -1;\n      dayObject.ariaLabel = ariaLabel;\n      dayObject.hidden = false;\n\n      date = nextDate;\n    }\n\n    weekObject.number = calendar.getWeekNumber(days.map(day => day.date), firstDayOfWeek);\n\n    // marking week as collapsed\n    weekObject.collapsed = outsideDays === 'collapsed' && days[0].date.month !== month.number &&\n        days[days.length - 1].date.month !== month.number;\n  }\n\n  return month;\n}\n\nexport function getFirstViewDate(calendar: NgbCalendar, date: NgbDate, firstDayOfWeek: number): NgbDate {\n  const daysPerWeek = calendar.getDaysPerWeek();\n  const firstMonthDate = new NgbDate(date.year, date.month, 1);\n  const dayOfWeek = calendar.getWeekday(firstMonthDate) % daysPerWeek;\n  return calendar.getPrev(firstMonthDate, 'd', (daysPerWeek + dayOfWeek - firstDayOfWeek) % daysPerWeek);\n}\n"]}