@ng-bootstrap/ng-bootstrap
Version:
Angular powered Bootstrap
181 lines • 29.9 kB
JavaScript
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;
return !(date === null ||
date === undefined ||
disabled ||
(markDisabled && markDisabled(date, { year: date.year, month: date.month })) ||
(minDate && date.before(minDate)) ||
(maxDate && date.after(maxDate)));
}
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\treturn !dateComparator(prev, next);\n}\n\nexport function isChangedMonth(prev?: NgbDate | null, next?: NgbDate | null): boolean {\n\treturn !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\treturn (!prev && !next) || (!!prev && !!next && prev.equals(next));\n}\n\nexport function checkMinBeforeMax(minDate?: NgbDate | null, maxDate?: NgbDate | null): void {\n\tif (maxDate && minDate && maxDate.before(minDate)) {\n\t\tthrow new Error(`'maxDate' ${maxDate} should be greater than 'minDate' ${minDate}`);\n\t}\n}\n\nexport function checkDateInRange(\n\tdate?: NgbDate | null,\n\tminDate?: NgbDate | null,\n\tmaxDate?: NgbDate | null,\n): NgbDate | null {\n\tif (date && minDate && date.before(minDate)) {\n\t\treturn minDate;\n\t}\n\tif (date && maxDate && date.after(maxDate)) {\n\t\treturn maxDate;\n\t}\n\n\treturn date || null;\n}\n\nexport function isDateSelectable(date: NgbDate | null | undefined, state: DatepickerViewModel) {\n\tconst { minDate, maxDate, disabled, markDisabled } = state;\n\treturn !(\n\t\tdate === null ||\n\t\tdate === undefined ||\n\t\tdisabled ||\n\t\t(markDisabled && markDisabled(date, { year: date.year, month: date.month })) ||\n\t\t(minDate && date.before(minDate)) ||\n\t\t(maxDate && date.after(maxDate))\n\t);\n}\n\nexport function generateSelectBoxMonths(\n\tcalendar: NgbCalendar,\n\tdate: NgbDate,\n\tminDate: NgbDate | null,\n\tmaxDate: NgbDate | null,\n) {\n\tif (!date) {\n\t\treturn [];\n\t}\n\n\tlet months = calendar.getMonths(date.year);\n\n\tif (minDate && date.year === minDate.year) {\n\t\tconst index = months.findIndex((month) => month === minDate.month);\n\t\tmonths = months.slice(index);\n\t}\n\n\tif (maxDate && date.year === maxDate.year) {\n\t\tconst index = months.findIndex((month) => month === maxDate.month);\n\t\tmonths = months.slice(0, index + 1);\n\t}\n\n\treturn months;\n}\n\nexport function generateSelectBoxYears(date: NgbDate, minDate: NgbDate | null, maxDate: NgbDate | null) {\n\tif (!date) {\n\t\treturn [];\n\t}\n\n\tconst start = minDate ? Math.max(minDate.year, date.year - 500) : date.year - 10;\n\tconst end = maxDate ? Math.min(maxDate.year, date.year + 500) : date.year + 10;\n\n\tconst length = end - start + 1;\n\tconst numbers = Array(length);\n\tfor (let i = 0; i < length; i++) {\n\t\tnumbers[i] = start + i;\n\t}\n\n\treturn numbers;\n}\n\nexport function nextMonthDisabled(calendar: NgbCalendar, date: NgbDate, maxDate: NgbDate | null) {\n\tconst nextDate = Object.assign(calendar.getNext(date, 'm'), { day: 1 });\n\treturn maxDate != null && nextDate.after(maxDate);\n}\n\nexport function prevMonthDisabled(calendar: NgbCalendar, date: NgbDate, minDate: NgbDate | null) {\n\tconst prevDate = Object.assign(calendar.getPrev(date, 'm'), { day: 1 });\n\treturn (\n\t\tminDate != null &&\n\t\t((prevDate.year === minDate.year && prevDate.month < minDate.month) ||\n\t\t\t(prevDate.year < minDate.year && minDate.month === 1))\n\t);\n}\n\nexport function buildMonths(\n\tcalendar: NgbCalendar,\n\tdate: NgbDate,\n\tstate: DatepickerViewModel,\n\ti18n: NgbDatepickerI18n,\n\tforce: boolean,\n): MonthViewModel[] {\n\tconst { displayMonths, months } = state;\n\t// move old months to a temporary array\n\tconst monthsToReuse = months.splice(0, months.length);\n\n\t// generate new first dates, nullify or reuse months\n\tconst firstDates = Array.from({ length: displayMonths }, (_, i) => {\n\t\tconst firstDate = Object.assign(calendar.getNext(date, 'm', i), { day: 1 });\n\t\tmonths[i] = <any>null;\n\n\t\tif (!force) {\n\t\t\tconst reusedIndex = monthsToReuse.findIndex((month) => month.firstDate.equals(firstDate));\n\t\t\t// move reused month back to months\n\t\t\tif (reusedIndex !== -1) {\n\t\t\t\tmonths[i] = monthsToReuse.splice(reusedIndex, 1)[0];\n\t\t\t}\n\t\t}\n\n\t\treturn firstDate;\n\t});\n\n\t// rebuild nullified months\n\tfirstDates.forEach((firstDate, i) => {\n\t\tif (months[i] === null) {\n\t\t\tmonths[i] = buildMonth(calendar, firstDate, state, i18n, monthsToReuse.shift() || ({} as MonthViewModel));\n\t\t}\n\t});\n\n\treturn months;\n}\n\nexport function buildMonth(\n\tcalendar: NgbCalendar,\n\tdate: NgbDate,\n\tstate: DatepickerViewModel,\n\ti18n: NgbDatepickerI18n,\n\tmonth: MonthViewModel = {} as MonthViewModel,\n): MonthViewModel {\n\tconst {\n\t\tdayTemplateData,\n\t\tminDate,\n\t\tmaxDate,\n\t\tfirstDayOfWeek,\n\t\tmarkDisabled,\n\t\toutsideDays,\n\t\tweekdayWidth,\n\t\tweekdaysVisible,\n\t} = state;\n\tconst calendarToday = calendar.getToday();\n\n\tmonth.firstDate = <any>null;\n\tmonth.lastDate = <any>null;\n\tmonth.number = date.month;\n\tmonth.year = date.year;\n\tmonth.weeks = month.weeks || [];\n\tmonth.weekdays = month.weekdays || [];\n\n\tdate = getFirstViewDate(calendar, date, firstDayOfWeek);\n\n\t// clearing weekdays, if not visible\n\tif (!weekdaysVisible) {\n\t\tmonth.weekdays.length = 0;\n\t}\n\n\t// month has weeks\n\tfor (let week = 0; week < calendar.getWeeksPerMonth(); week++) {\n\t\tlet weekObject = month.weeks[week];\n\t\tif (!weekObject) {\n\t\t\tweekObject = month.weeks[week] = { number: 0, days: [], collapsed: true };\n\t\t}\n\t\tconst days = weekObject.days;\n\n\t\t// week has days\n\t\tfor (let day = 0; day < calendar.getDaysPerWeek(); day++) {\n\t\t\tif (week === 0 && weekdaysVisible) {\n\t\t\t\tmonth.weekdays[day] = i18n.getWeekdayLabel(calendar.getWeekday(date), weekdayWidth);\n\t\t\t}\n\n\t\t\tconst newDate = new NgbDate(date.year, date.month, date.day);\n\t\t\tconst nextDate = calendar.getNext(newDate);\n\n\t\t\tconst ariaLabel = i18n.getDayAriaLabel(newDate);\n\n\t\t\t// marking date as disabled\n\t\t\tlet disabled = !!((minDate && newDate.before(minDate)) || (maxDate && newDate.after(maxDate)));\n\t\t\tif (!disabled && markDisabled) {\n\t\t\t\tdisabled = markDisabled(newDate, { month: month.number, year: month.year });\n\t\t\t}\n\n\t\t\t// today\n\t\t\tlet today = newDate.equals(calendarToday);\n\n\t\t\t// adding user-provided data to the context\n\t\t\tlet contextUserData = dayTemplateData\n\t\t\t\t? dayTemplateData(newDate, { month: month.number, year: month.year })\n\t\t\t\t: undefined;\n\n\t\t\t// saving first date of the month\n\t\t\tif (month.firstDate === null && newDate.month === month.number) {\n\t\t\t\tmonth.firstDate = newDate;\n\t\t\t}\n\n\t\t\t// saving last date of the month\n\t\t\tif (newDate.month === month.number && nextDate.month !== month.number) {\n\t\t\t\tmonth.lastDate = newDate;\n\t\t\t}\n\n\t\t\tlet dayObject = days[day];\n\t\t\tif (!dayObject) {\n\t\t\t\tdayObject = days[day] = {} as DayViewModel;\n\t\t\t}\n\t\t\tdayObject.date = newDate;\n\t\t\tdayObject.context = Object.assign(dayObject.context || {}, {\n\t\t\t\t$implicit: newDate,\n\t\t\t\tdate: newDate,\n\t\t\t\tdata: contextUserData,\n\t\t\t\tcurrentMonth: month.number,\n\t\t\t\tcurrentYear: month.year,\n\t\t\t\tdisabled,\n\t\t\t\tfocused: false,\n\t\t\t\tselected: false,\n\t\t\t\ttoday,\n\t\t\t});\n\t\t\tdayObject.tabindex = -1;\n\t\t\tdayObject.ariaLabel = ariaLabel;\n\t\t\tdayObject.hidden = false;\n\n\t\t\tdate = nextDate;\n\t\t}\n\n\t\tweekObject.number = calendar.getWeekNumber(\n\t\t\tdays.map((day) => day.date),\n\t\t\tfirstDayOfWeek,\n\t\t);\n\n\t\t// marking week as collapsed\n\t\tweekObject.collapsed =\n\t\t\toutsideDays === 'collapsed' &&\n\t\t\tdays[0].date.month !== month.number &&\n\t\t\tdays[days.length - 1].date.month !== month.number;\n\t}\n\n\treturn month;\n}\n\nexport function getFirstViewDate(calendar: NgbCalendar, date: NgbDate, firstDayOfWeek: number): NgbDate {\n\tconst daysPerWeek = calendar.getDaysPerWeek();\n\tconst firstMonthDate = new NgbDate(date.year, date.month, 1);\n\tconst dayOfWeek = calendar.getWeekday(firstMonthDate) % daysPerWeek;\n\treturn calendar.getPrev(firstMonthDate, 'd', (daysPerWeek + dayOfWeek - firstDayOfWeek) % daysPerWeek);\n}\n"]}