flowbite-datepicker-1.3.0
Version:
A Tailwind CSS powered datepicker built with vanilla JavaScript and Flowbite
264 lines (243 loc) • 8.13 kB
JavaScript
import {hasProperty, pushUnique} from '../lib/utils.js';
import {dateValue} from '../lib/date.js';
import {reFormatTokens, parseDate} from '../lib/date-format.js';
import {parseHTML} from '../lib/dom.js';
import defaultOptions from './defaultOptions.js';
const {
language: defaultLang,
format: defaultFormat,
weekStart: defaultWeekStart,
} = defaultOptions;
// Reducer function to filter out invalid day-of-week from the input
function sanitizeDOW(dow, day) {
return dow.length < 6 && day >= 0 && day < 7
? pushUnique(dow, day)
: dow;
}
function calcEndOfWeek(startOfWeek) {
return (startOfWeek + 6) % 7;
}
// validate input date. if invalid, fallback to the original value
function validateDate(value, format, locale, origValue) {
const date = parseDate(value, format, locale);
return date !== undefined ? date : origValue;
}
// Validate viewId. if invalid, fallback to the original value
function validateViewId(value, origValue, max = 3) {
const viewId = parseInt(value, 10);
return viewId >= 0 && viewId <= max ? viewId : origValue;
}
// Create Datepicker configuration to set
export default function processOptions(options, datepicker) {
const inOpts = Object.assign({}, options);
const config = {};
const locales = datepicker.constructor.locales;
let {
format,
language,
locale,
maxDate,
maxView,
minDate,
pickLevel,
startView,
weekStart,
} = datepicker.config || {};
if (inOpts.language) {
let lang;
if (inOpts.language !== language) {
if (locales[inOpts.language]) {
lang = inOpts.language;
} else {
// Check if langauge + region tag can fallback to the one without
// region (e.g. fr-CA → fr)
lang = inOpts.language.split('-')[0];
if (locales[lang] === undefined) {
lang = false;
}
}
}
delete inOpts.language;
if (lang) {
language = config.language = lang;
// update locale as well when updating language
const origLocale = locale || locales[defaultLang];
// use default language's properties for the fallback
locale = Object.assign({
format: defaultFormat,
weekStart: defaultWeekStart
}, locales[defaultLang]);
if (language !== defaultLang) {
Object.assign(locale, locales[language]);
}
config.locale = locale;
// if format and/or weekStart are the same as old locale's defaults,
// update them to new locale's defaults
if (format === origLocale.format) {
format = config.format = locale.format;
}
if (weekStart === origLocale.weekStart) {
weekStart = config.weekStart = locale.weekStart;
config.weekEnd = calcEndOfWeek(locale.weekStart);
}
}
}
if (inOpts.format) {
const hasToDisplay = typeof inOpts.format.toDisplay === 'function';
const hasToValue = typeof inOpts.format.toValue === 'function';
const validFormatString = reFormatTokens.test(inOpts.format);
if ((hasToDisplay && hasToValue) || validFormatString) {
format = config.format = inOpts.format;
}
delete inOpts.format;
}
//*** dates ***//
// while min and maxDate for "no limit" in the options are better to be null
// (especially when updating), the ones in the config have to be undefined
// because null is treated as 0 (= unix epoch) when comparing with time value
let minDt = minDate;
let maxDt = maxDate;
if (inOpts.minDate !== undefined) {
minDt = inOpts.minDate === null
? dateValue(0, 0, 1) // set 0000-01-01 to prevent negative values for year
: validateDate(inOpts.minDate, format, locale, minDt);
delete inOpts.minDate;
}
if (inOpts.maxDate !== undefined) {
maxDt = inOpts.maxDate === null
? undefined
: validateDate(inOpts.maxDate, format, locale, maxDt);
delete inOpts.maxDate;
}
if (maxDt < minDt) {
minDate = config.minDate = maxDt;
maxDate = config.maxDate = minDt;
} else {
if (minDate !== minDt) {
minDate = config.minDate = minDt;
}
if (maxDate !== maxDt) {
maxDate = config.maxDate = maxDt;
}
}
if (inOpts.datesDisabled) {
config.datesDisabled = inOpts.datesDisabled.reduce((dates, dt) => {
const date = parseDate(dt, format, locale);
return date !== undefined ? pushUnique(dates, date) : dates;
}, []);
delete inOpts.datesDisabled;
}
if (inOpts.defaultViewDate !== undefined) {
const viewDate = parseDate(inOpts.defaultViewDate, format, locale);
if (viewDate !== undefined) {
config.defaultViewDate = viewDate;
}
delete inOpts.defaultViewDate;
}
//*** days of week ***//
if (inOpts.weekStart !== undefined) {
const wkStart = Number(inOpts.weekStart) % 7;
if (!isNaN(wkStart)) {
weekStart = config.weekStart = wkStart;
config.weekEnd = calcEndOfWeek(wkStart);
}
delete inOpts.weekStart;
}
if (inOpts.daysOfWeekDisabled) {
config.daysOfWeekDisabled = inOpts.daysOfWeekDisabled.reduce(sanitizeDOW, []);
delete inOpts.daysOfWeekDisabled;
}
if (inOpts.daysOfWeekHighlighted) {
config.daysOfWeekHighlighted = inOpts.daysOfWeekHighlighted.reduce(sanitizeDOW, []);
delete inOpts.daysOfWeekHighlighted;
}
//*** multi date ***//
if (inOpts.maxNumberOfDates !== undefined) {
const maxNumberOfDates = parseInt(inOpts.maxNumberOfDates, 10);
if (maxNumberOfDates >= 0) {
config.maxNumberOfDates = maxNumberOfDates;
config.multidate = maxNumberOfDates !== 1;
}
delete inOpts.maxNumberOfDates;
}
if (inOpts.dateDelimiter) {
config.dateDelimiter = String(inOpts.dateDelimiter);
delete inOpts.dateDelimiter;
}
//*** pick level & view ***//
let newPickLevel = pickLevel;
if (inOpts.pickLevel !== undefined) {
newPickLevel = validateViewId(inOpts.pickLevel, 2);
delete inOpts.pickLevel;
}
if (newPickLevel !== pickLevel) {
pickLevel = config.pickLevel = newPickLevel;
}
let newMaxView = maxView;
if (inOpts.maxView !== undefined) {
newMaxView = validateViewId(inOpts.maxView, maxView);
delete inOpts.maxView;
}
// ensure max view >= pick level
newMaxView = pickLevel > newMaxView ? pickLevel : newMaxView;
if (newMaxView !== maxView) {
maxView = config.maxView = newMaxView;
}
let newStartView = startView;
if (inOpts.startView !== undefined) {
newStartView = validateViewId(inOpts.startView, newStartView);
delete inOpts.startView;
}
// ensure pick level <= start view <= max view
if (newStartView < pickLevel) {
newStartView = pickLevel;
} else if (newStartView > maxView) {
newStartView = maxView;
}
if (newStartView !== startView) {
config.startView = newStartView;
}
//*** template ***//
if (inOpts.prevArrow) {
const prevArrow = parseHTML(inOpts.prevArrow);
if (prevArrow.childNodes.length > 0) {
config.prevArrow = prevArrow.childNodes;
}
delete inOpts.prevArrow;
}
if (inOpts.nextArrow) {
const nextArrow = parseHTML(inOpts.nextArrow);
if (nextArrow.childNodes.length > 0) {
config.nextArrow = nextArrow.childNodes;
}
delete inOpts.nextArrow;
}
//*** misc ***//
if (inOpts.disableTouchKeyboard !== undefined) {
config.disableTouchKeyboard = 'ontouchstart' in document && !!inOpts.disableTouchKeyboard;
delete inOpts.disableTouchKeyboard;
}
if (inOpts.orientation) {
const orientation = inOpts.orientation.toLowerCase().split(/\s+/g);
config.orientation = {
x: orientation.find(x => (x === 'left' || x === 'right')) || 'auto',
y: orientation.find(y => (y === 'top' || y === 'bottom')) || 'auto',
};
delete inOpts.orientation;
}
if (inOpts.todayBtnMode !== undefined) {
switch(inOpts.todayBtnMode) {
case 0:
case 1:
config.todayBtnMode = inOpts.todayBtnMode;
}
delete inOpts.todayBtnMode;
}
//*** copy the rest ***//
Object.keys(inOpts).forEach((key) => {
if (inOpts[key] !== undefined && hasProperty(defaultOptions, key)) {
config[key] = inOpts[key];
}
});
return config;
}