@danielmoncada/angular-datetime-picker
Version:
Angular Date Time Picker
257 lines • 38 kB
JavaScript
/**
* native-date-time-adapter.class
*/
import { Inject, Injectable, Optional } from '@angular/core';
import { Platform } from '@angular/cdk/platform';
import { DateTimeAdapter, OWL_DATE_TIME_LOCALE } from './date-time-adapter.class';
import { range } from '../../utils/array.utils';
import { createDate, getNumDaysInMonth } from '../../utils/date.utils';
import { DEFAULT_DATE_NAMES, DEFAULT_DAY_OF_WEEK_NAMES, DEFAULT_MONTH_NAMES, SUPPORTS_INTL_API } from '../../utils/constants';
/**
* Matches strings that have the form of a valid RFC 3339 string
* (https://tools.ietf.org/html/rfc3339). Note that the string may not actually be a valid date
* because the regex will match strings an with out of bounds month, date, etc.
*/
const ISO_8601_REGEX = /^\d{4}-\d{2}-\d{2}(?:T\d{2}:\d{2}:\d{2}(?:\.\d+)?(?:Z|(?:[+\-]\d{2}:\d{2}))?)?$/;
export class NativeDateTimeAdapter extends DateTimeAdapter {
constructor(owlDateTimeLocale, platform) {
super();
this.owlDateTimeLocale = owlDateTimeLocale;
super.setLocale(owlDateTimeLocale);
// IE does its own time zone correction, so we disable this on IE.
this.useUtcForDisplay = !platform.TRIDENT;
this._clampDate = platform.TRIDENT || platform.EDGE;
}
getYear(date) {
return date.getFullYear();
}
getMonth(date) {
return date.getMonth();
}
getDay(date) {
return date.getDay();
}
getDate(date) {
return date.getDate();
}
getHours(date) {
return date.getHours();
}
getMinutes(date) {
return date.getMinutes();
}
getSeconds(date) {
return date.getSeconds();
}
getTime(date) {
return date.getTime();
}
getNumDaysInMonth(date) {
return getNumDaysInMonth(date);
}
differenceInCalendarDays(dateLeft, dateRight) {
if (this.isValid(dateLeft) && this.isValid(dateRight)) {
const dateLeftStartOfDay = this.createDate(this.getYear(dateLeft), this.getMonth(dateLeft), this.getDate(dateLeft));
const dateRightStartOfDay = this.createDate(this.getYear(dateRight), this.getMonth(dateRight), this.getDate(dateRight));
const timeStampLeft = this.getTime(dateLeftStartOfDay) -
dateLeftStartOfDay.getTimezoneOffset() *
this.milliseondsInMinute;
const timeStampRight = this.getTime(dateRightStartOfDay) -
dateRightStartOfDay.getTimezoneOffset() *
this.milliseondsInMinute;
return Math.round((timeStampLeft - timeStampRight) / this.millisecondsInDay);
}
else {
return null;
}
}
getYearName(date) {
if (SUPPORTS_INTL_API) {
const dtf = new Intl.DateTimeFormat(this.getLocale(), {
year: 'numeric',
timeZone: 'utc'
});
return this.stripDirectionalityCharacters(this._format(dtf, date));
}
return String(this.getYear(date));
}
getMonthNames(style) {
if (SUPPORTS_INTL_API) {
const dtf = new Intl.DateTimeFormat(this.getLocale(), {
month: style,
timeZone: 'utc'
});
return range(12, i => this.stripDirectionalityCharacters(this._format(dtf, new Date(2017, i, 1))));
}
return DEFAULT_MONTH_NAMES[style];
}
getDayOfWeekNames(style) {
if (SUPPORTS_INTL_API) {
const dtf = new Intl.DateTimeFormat(this.getLocale(), {
weekday: style,
timeZone: 'utc'
});
return range(7, i => this.stripDirectionalityCharacters(this._format(dtf, new Date(2017, 0, i + 1))));
}
return DEFAULT_DAY_OF_WEEK_NAMES[style];
}
getDateNames() {
if (SUPPORTS_INTL_API) {
const dtf = new Intl.DateTimeFormat(this.getLocale(), {
day: 'numeric',
timeZone: 'utc'
});
return range(31, i => this.stripDirectionalityCharacters(this._format(dtf, new Date(2017, 0, i + 1))));
}
return DEFAULT_DATE_NAMES;
}
toIso8601(date) {
return date.toISOString();
}
isEqual(dateLeft, dateRight) {
if (this.isValid(dateLeft) && this.isValid(dateRight)) {
return dateLeft.getTime() === dateRight.getTime();
}
else {
return false;
}
}
isSameDay(dateLeft, dateRight) {
if (this.isValid(dateLeft) && this.isValid(dateRight)) {
const dateLeftStartOfDay = this.clone(dateLeft);
const dateRightStartOfDay = this.clone(dateRight);
dateLeftStartOfDay.setHours(0, 0, 0, 0);
dateRightStartOfDay.setHours(0, 0, 0, 0);
return (dateLeftStartOfDay.getTime() === dateRightStartOfDay.getTime());
}
else {
return false;
}
}
isValid(date) {
return date && !isNaN(date.getTime());
}
invalid() {
return new Date(NaN);
}
isDateInstance(obj) {
return obj instanceof Date;
}
addCalendarYears(date, amount) {
return this.addCalendarMonths(date, amount * 12);
}
addCalendarMonths(date, amount) {
const result = this.clone(date);
amount = Number(amount);
const desiredMonth = result.getMonth() + amount;
const dateWithDesiredMonth = new Date(0);
dateWithDesiredMonth.setFullYear(result.getFullYear(), desiredMonth, 1);
dateWithDesiredMonth.setHours(0, 0, 0, 0);
const daysInMonth = this.getNumDaysInMonth(dateWithDesiredMonth);
// Set the last day of the new month
// if the original date was the last day of the longer month
result.setMonth(desiredMonth, Math.min(daysInMonth, result.getDate()));
return result;
}
addCalendarDays(date, amount) {
const result = this.clone(date);
amount = Number(amount);
result.setDate(result.getDate() + amount);
return result;
}
setHours(date, amount) {
const result = this.clone(date);
result.setHours(amount);
return result;
}
setMinutes(date, amount) {
const result = this.clone(date);
result.setMinutes(amount);
return result;
}
setSeconds(date, amount) {
const result = this.clone(date);
result.setSeconds(amount);
return result;
}
createDate(year, month, date, hours = 0, minutes = 0, seconds = 0) {
return createDate(year, month, date, hours, minutes, seconds);
}
clone(date) {
return this.createDate(this.getYear(date), this.getMonth(date), this.getDate(date), this.getHours(date), this.getMinutes(date), this.getSeconds(date));
}
now() {
return new Date();
}
format(date, displayFormat) {
if (!this.isValid(date)) {
throw Error('JSNativeDate: Cannot format invalid date.');
}
if (SUPPORTS_INTL_API) {
if (this._clampDate &&
(date.getFullYear() < 1 || date.getFullYear() > 9999)) {
date = this.clone(date);
date.setFullYear(Math.max(1, Math.min(9999, date.getFullYear())));
}
displayFormat = Object.assign(Object.assign({}, displayFormat), { timeZone: 'utc' });
const dtf = new Intl.DateTimeFormat(this.getLocale(), displayFormat);
return this.stripDirectionalityCharacters(this._format(dtf, date));
}
return this.stripDirectionalityCharacters(date.toDateString());
}
parse(value, parseFormat) {
// There is no way using the native JS Date to set the parse format or locale
if (typeof value === 'number') {
return new Date(value);
}
return value ? new Date(Date.parse(value)) : null;
}
/**
* Returns the given value if given a valid Date or null. Deserializes valid ISO 8601 strings
* (https://www.ietf.org/rfc/rfc3339.txt) into valid Dates and empty string into null. Returns an
* invalid date for all other values.
*/
deserialize(value) {
if (typeof value === 'string') {
if (!value) {
return null;
}
// The `Date` constructor accepts formats other than ISO 8601, so we need to make sure the
// string is the right format first.
if (ISO_8601_REGEX.test(value)) {
const date = new Date(value);
if (this.isValid(date)) {
return date;
}
}
}
return super.deserialize(value);
}
/**
* Strip out unicode LTR and RTL characters. Edge and IE insert these into formatted dates while
* other browsers do not. We remove them to make output consistent and because they interfere with
* date parsing.
*/
stripDirectionalityCharacters(str) {
return str.replace(/[\u200e\u200f]/g, '');
}
/**
* When converting Date object to string, javascript built-in functions may return wrong
* results because it applies its internal DST rules. The DST rules around the world change
* very frequently, and the current valid rule is not always valid in previous years though.
* We work around this problem building a new Date object which has its internal UTC
* representation with the local date and time.
*/
_format(dtf, date) {
const d = new Date(Date.UTC(date.getFullYear(), date.getMonth(), date.getDate(), date.getHours(), date.getMinutes(), date.getSeconds(), date.getMilliseconds()));
return dtf.format(d);
}
}
NativeDateTimeAdapter.decorators = [
{ type: Injectable }
];
NativeDateTimeAdapter.ctorParameters = () => [
{ type: String, decorators: [{ type: Optional }, { type: Inject, args: [OWL_DATE_TIME_LOCALE,] }] },
{ type: Platform }
];
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* native-date-time-adapter.class\n */\n\nimport { Inject, Injectable, Optional } from '@angular/core';\nimport { Platform } from '@angular/cdk/platform';\nimport {\n    DateTimeAdapter,\n    OWL_DATE_TIME_LOCALE\n} from './date-time-adapter.class';\nimport { range } from '../../utils/array.utils';\nimport { createDate, getNumDaysInMonth } from '../../utils/date.utils';\nimport {\n    DEFAULT_DATE_NAMES,\n    DEFAULT_DAY_OF_WEEK_NAMES,\n    DEFAULT_MONTH_NAMES,\n    SUPPORTS_INTL_API\n} from '../../utils/constants';\n\n/**\n * Matches strings that have the form of a valid RFC 3339 string\n * (https://tools.ietf.org/html/rfc3339). Note that the string may not actually be a valid date\n * because the regex will match strings an with out of bounds month, date, etc.\n */\nconst ISO_8601_REGEX = /^\\d{4}-\\d{2}-\\d{2}(?:T\\d{2}:\\d{2}:\\d{2}(?:\\.\\d+)?(?:Z|(?:[+\\-]\\d{2}:\\d{2}))?)?$/;\n\n@Injectable()\nexport class NativeDateTimeAdapter extends DateTimeAdapter<Date> {\n    /** Whether to clamp the date between 1 and 9999 to avoid IE and Edge errors. */\n    private readonly _clampDate: boolean;\n\n    /**\n     * Whether to use `timeZone: 'utc'` with `Intl.DateTimeFormat` when formatting dates.\n     * Without this `Intl.DateTimeFormat` sometimes chooses the wrong timeZone, which can throw off\n     * the result. (e.g. in the en-US locale `new Date(1800, 7, 14).toLocaleDateString()`\n     * will produce `'8/13/1800'`.\n     */\n    useUtcForDisplay: boolean;\n\n    constructor(\n        @Optional()\n        @Inject(OWL_DATE_TIME_LOCALE)\n        private owlDateTimeLocale: string,\n        platform: Platform\n    ) {\n        super();\n        super.setLocale(owlDateTimeLocale);\n\n        // IE does its own time zone correction, so we disable this on IE.\n        this.useUtcForDisplay = !platform.TRIDENT;\n        this._clampDate = platform.TRIDENT || platform.EDGE;\n    }\n\n    public getYear(date: Date): number {\n        return date.getFullYear();\n    }\n\n    public getMonth(date: Date): number {\n        return date.getMonth();\n    }\n\n    public getDay(date: Date): number {\n        return date.getDay();\n    }\n\n    public getDate(date: Date): number {\n        return date.getDate();\n    }\n\n    public getHours(date: Date): number {\n        return date.getHours();\n    }\n\n    public getMinutes(date: Date): number {\n        return date.getMinutes();\n    }\n\n    public getSeconds(date: Date): number {\n        return date.getSeconds();\n    }\n\n    public getTime(date: Date): number {\n        return date.getTime();\n    }\n\n    public getNumDaysInMonth(date: Date): number {\n        return getNumDaysInMonth(date);\n    }\n\n    public differenceInCalendarDays(dateLeft: Date, dateRight: Date): number {\n        if (this.isValid(dateLeft) && this.isValid(dateRight)) {\n            const dateLeftStartOfDay = this.createDate(\n                this.getYear(dateLeft),\n                this.getMonth(dateLeft),\n                this.getDate(dateLeft)\n            );\n            const dateRightStartOfDay = this.createDate(\n                this.getYear(dateRight),\n                this.getMonth(dateRight),\n                this.getDate(dateRight)\n            );\n\n            const timeStampLeft =\n                this.getTime(dateLeftStartOfDay) -\n                dateLeftStartOfDay.getTimezoneOffset() *\n                    this.milliseondsInMinute;\n            const timeStampRight =\n                this.getTime(dateRightStartOfDay) -\n                dateRightStartOfDay.getTimezoneOffset() *\n                    this.milliseondsInMinute;\n            return Math.round(\n                (timeStampLeft - timeStampRight) / this.millisecondsInDay\n            );\n        } else {\n            return null;\n        }\n    }\n\n    public getYearName(date: Date): string {\n        if (SUPPORTS_INTL_API) {\n            const dtf = new Intl.DateTimeFormat(this.getLocale(), {\n                year: 'numeric',\n                timeZone: 'utc'\n            });\n            return this.stripDirectionalityCharacters(this._format(dtf, date));\n        }\n        return String(this.getYear(date));\n    }\n\n    public getMonthNames(style: 'long' | 'short' | 'narrow'): string[] {\n        if (SUPPORTS_INTL_API) {\n            const dtf = new Intl.DateTimeFormat(this.getLocale(), {\n                month: style,\n                timeZone: 'utc'\n            });\n            return range(12, i =>\n                this.stripDirectionalityCharacters(\n                    this._format(dtf, new Date(2017, i, 1))\n                )\n            );\n        }\n        return DEFAULT_MONTH_NAMES[style];\n    }\n\n    public getDayOfWeekNames(style: 'long' | 'short' | 'narrow'): string[] {\n        if (SUPPORTS_INTL_API) {\n            const dtf = new Intl.DateTimeFormat(this.getLocale(), {\n                weekday: style,\n                timeZone: 'utc'\n            });\n            return range(7, i =>\n                this.stripDirectionalityCharacters(\n                    this._format(dtf, new Date(2017, 0, i + 1))\n                )\n            );\n        }\n\n        return DEFAULT_DAY_OF_WEEK_NAMES[style];\n    }\n\n    public getDateNames(): string[] {\n        if (SUPPORTS_INTL_API) {\n            const dtf = new Intl.DateTimeFormat(this.getLocale(), {\n                day: 'numeric',\n                timeZone: 'utc'\n            });\n            return range(31, i =>\n                this.stripDirectionalityCharacters(\n                    this._format(dtf, new Date(2017, 0, i + 1))\n                )\n            );\n        }\n        return DEFAULT_DATE_NAMES;\n    }\n\n    public toIso8601(date: Date): string {\n        return date.toISOString();\n    }\n\n    public isEqual(dateLeft: Date, dateRight: Date): boolean {\n        if (this.isValid(dateLeft) && this.isValid(dateRight)) {\n            return dateLeft.getTime() === dateRight.getTime();\n        } else {\n            return false;\n        }\n    }\n\n    public isSameDay(dateLeft: Date, dateRight: Date): boolean {\n        if (this.isValid(dateLeft) && this.isValid(dateRight)) {\n            const dateLeftStartOfDay = this.clone(dateLeft);\n            const dateRightStartOfDay = this.clone(dateRight);\n            dateLeftStartOfDay.setHours(0, 0, 0, 0);\n            dateRightStartOfDay.setHours(0, 0, 0, 0);\n            return (\n                dateLeftStartOfDay.getTime() === dateRightStartOfDay.getTime()\n            );\n        } else {\n            return false;\n        }\n    }\n\n    public isValid(date: Date): boolean {\n        return date && !isNaN(date.getTime());\n    }\n\n    public invalid(): Date {\n        return new Date(NaN);\n    }\n\n    public isDateInstance(obj: any): boolean {\n        return obj instanceof Date;\n    }\n\n    public addCalendarYears(date: Date, amount: number): Date {\n        return this.addCalendarMonths(date, amount * 12);\n    }\n\n    public addCalendarMonths(date: Date, amount: number): Date {\n        const result = this.clone(date);\n        amount = Number(amount);\n\n        const desiredMonth = result.getMonth() + amount;\n        const dateWithDesiredMonth = new Date(0);\n        dateWithDesiredMonth.setFullYear(result.getFullYear(), desiredMonth, 1);\n        dateWithDesiredMonth.setHours(0, 0, 0, 0);\n\n        const daysInMonth = this.getNumDaysInMonth(dateWithDesiredMonth);\n        // Set the last day of the new month\n        // if the original date was the last day of the longer month\n        result.setMonth(desiredMonth, Math.min(daysInMonth, result.getDate()));\n        return result;\n    }\n\n    public addCalendarDays(date: Date, amount: number): Date {\n        const result = this.clone(date);\n        amount = Number(amount);\n        result.setDate(result.getDate() + amount);\n        return result;\n    }\n\n    public setHours(date: Date, amount: number): Date {\n        const result = this.clone(date);\n        result.setHours(amount);\n        return result;\n    }\n\n    public setMinutes(date: Date, amount: number): Date {\n        const result = this.clone(date);\n        result.setMinutes(amount);\n        return result;\n    }\n\n    public setSeconds(date: Date, amount: number): Date {\n        const result = this.clone(date);\n        result.setSeconds(amount);\n        return result;\n    }\n\n    public createDate(\n        year: number,\n        month: number,\n        date: number,\n        hours: number = 0,\n        minutes: number = 0,\n        seconds: number = 0\n    ): Date {\n        return createDate(year, month, date, hours, minutes, seconds);\n    }\n\n    public clone(date: Date): Date {\n        return this.createDate(\n            this.getYear(date),\n            this.getMonth(date),\n            this.getDate(date),\n            this.getHours(date),\n            this.getMinutes(date),\n            this.getSeconds(date)\n        );\n    }\n\n    public now(): Date {\n        return new Date();\n    }\n\n    public format(date: Date, displayFormat: any): string {\n        if (!this.isValid(date)) {\n            throw Error('JSNativeDate: Cannot format invalid date.');\n        }\n\n        if (SUPPORTS_INTL_API) {\n            if (\n                this._clampDate &&\n                (date.getFullYear() < 1 || date.getFullYear() > 9999)\n            ) {\n                date = this.clone(date);\n                date.setFullYear(\n                    Math.max(1, Math.min(9999, date.getFullYear()))\n                );\n            }\n\n            displayFormat = { ...displayFormat, timeZone: 'utc' };\n            const dtf = new Intl.DateTimeFormat(this.getLocale(), displayFormat);\n            return this.stripDirectionalityCharacters(this._format(dtf, date));\n        }\n\n        return this.stripDirectionalityCharacters(date.toDateString());\n    }\n\n    public parse(value: any, parseFormat: any): Date | null {\n        // There is no way using the native JS Date to set the parse format or locale\n        if (typeof value === 'number') {\n            return new Date(value);\n        }\n        return value ? new Date(Date.parse(value)) : null;\n    }\n\n    /**\n     * Returns the given value if given a valid Date or null. Deserializes valid ISO 8601 strings\n     * (https://www.ietf.org/rfc/rfc3339.txt) into valid Dates and empty string into null. Returns an\n     * invalid date for all other values.\n     */\n    public deserialize(value: any): Date | null {\n        if (typeof value === 'string') {\n            if (!value) {\n                return null;\n            }\n            // The `Date` constructor accepts formats other than ISO 8601, so we need to make sure the\n            // string is the right format first.\n            if (ISO_8601_REGEX.test(value)) {\n                const date = new Date(value);\n                if (this.isValid(date)) {\n                    return date;\n                }\n            }\n        }\n        return super.deserialize(value);\n    }\n\n    /**\n     * Strip out unicode LTR and RTL characters. Edge and IE insert these into formatted dates while\n     * other browsers do not. We remove them to make output consistent and because they interfere with\n     * date parsing.\n     */\n    private stripDirectionalityCharacters(str: string) {\n        return str.replace(/[\\u200e\\u200f]/g, '');\n    }\n\n    /**\n     * When converting Date object to string, javascript built-in functions may return wrong\n     * results because it applies its internal DST rules. The DST rules around the world change\n     * very frequently, and the current valid rule is not always valid in previous years though.\n     * We work around this problem building a new Date object which has its internal UTC\n     * representation with the local date and time.\n     */\n    private _format(dtf: Intl.DateTimeFormat, date: Date) {\n        const d = new Date(\n            Date.UTC(\n                date.getFullYear(),\n                date.getMonth(),\n                date.getDate(),\n                date.getHours(),\n                date.getMinutes(),\n                date.getSeconds(),\n                date.getMilliseconds()\n            )\n        );\n        return dtf.format(d);\n    }\n}\n"]}