tp-date-input/tp-date-input.js
2023-01-27 12:46:53 +01:00

494 lines
12 KiB
JavaScript

/**
@license
Copyright (c) 2022 trading_peter
This program is available under Apache License Version 2.0
*/
import '@tp/tp-input/tp-input.js';
import { ControlState } from '@tp/helpers/control-state.js';
import { EventHelpers } from '@tp/helpers/event-helpers.js';
import { FormElement } from '@tp/helpers/form-element.js';
import { LitElement, html, css } from 'lit';
import { format, parse, parseISO, isAfter, isValid, endOfDay } from 'date-fns/esm';
import { zonedTimeToUtc } from 'date-fns-tz/esm';
import { closest } from '@tp/helpers';
class TpDateInput extends EventHelpers(ControlState(FormElement(LitElement))) {
static get styles() {
return [
css`
:host {
display: block;
position: relative;
font-size: 14px;
}
.wrap {
display: flex;
flex-direction: row;
align-items: center;
border-radius: 2px;
border: solid 1px #000;
}
tp-input {
width: 30px;
text-align: center;
border: none;
}
tp-input.year {
width: 50px;
}
tp-input::part(wrap) {
border: none;
}
.under {
position: relative;
}
.error-message {
position: absolute;
z-index: 1;
left: 0;
right: 0;
font-size: 10px;
color: var(--tp-input-text-color-invalid, #B71C1C);
transition: opacity 0.3s;
opacity: 0;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
pointer-events: none;
}
:host([invalid]) .error-message {
opacity: 1;
}
div[part="delimiter"] {
padding-bottom: 2px;
}
.more {
flex: 1;
display: flex;
justify-content: end;
}
`
];
}
render() {
const { delimiter, autoValidate, readonly, required, errorMessage } = this;
return html`
<div class="wrap" part="wrap">
<tp-input part="input ${this._setClass(0)}" exportparts="wrap:innerwrap" class=${this._setClass(0)} .value=${this._input0} @change=${this._inputChanged} .validator=${this._setValidator(0)} .autoValidate=${autoValidate} .readonly=${readonly} .required=${required}>
<input type="text" placeholder=${this._setPlaceholder(0)}>
</tp-input>
<div part="delimiter">${delimiter}</div>
<tp-input part="input ${this._setClass(1)}" exportparts="wrap:innerwrap" class=${this._setClass(1)} .value=${this._input1} @change=${this._inputChanged} .validator=${this._setValidator(1)} .autoValidate=${autoValidate} .readonly=${readonly} .required=${required}>
<input type="text" placeholder=${this._setPlaceholder(1)}>
</tp-input>
<div part="delimiter">${delimiter}</div>
<tp-input part="input ${this._setClass(2)}" exportparts="wrap:innerwrap" class=${this._setClass(2)} .value=${this._input2} @change=${this._inputChanged} .validator=${this._setValidator(2)} .autoValidate=${autoValidate} .readonly=${readonly} .required=${required}>
<input type="text" placeholder=${this._setPlaceholder(2)}>
</tp-input>
<div class="more">
<slot></slot>
</div>
</div>
${errorMessage ? html`
<div class="error-message" part="error-message">${errorMessage}</div>
` : null}
`;
}
static get properties() {
return {
// Format of the date.
// Supports MM, dd and y. The order specifies how the input fields are labeled.
// The delimiter is also taken from the supplied format.
format: { type: String },
// Date object with the currently selected date.
date: { type: Object },
// If true, let value default to the date of today.
today: { type: Boolean },
required: { type: Boolean },
autoValidate: { type: Boolean },
// If true, the entered date is invalid.
invalid: { type: Boolean, reflect: true },
// Error message to show if the date is invalid.
errorMessage: { type: String },
optional: { type: Boolean },
// Range of years in the future that are selectable in the date-picker.
maxYear: { type: Number },
// Range of years in the past that are selectable in the date-picker.
minYear: { type: Number },
// Maximum date that can be selected. Everything after will be disabled.
// Set it to `today` to automatically allow dates till today (inclusive).
// Expects 'today' or a ISO Date string.
maxDate: { type: String },
// List of allowed dates. Any other dates will make the validation fail.
allowedDates: { type: Array },
timeZone: { type: String },
delimiter: { type: String },
};
}
constructor() {
super();
this.format = 'MM-dd-y';
this.required = false;
this.autoValidate = false;
this.invalid = false;
this.optional = false;
this.maxYear = 10;
this.minYear = 10;
this.allowedDates = [];
this._formatChanged();
}
shouldUpdate(changes) {
if (changes.has('format')) {
this._formatChanged();
}
if (changes.has('value')) {
this._onValueChanged();
}
return true;
}
firstUpdated() {
super.firstUpdated();
this.listen(this, 'input', '_autoMoveCursor');
const datepicker = this.querySelector('tp-datepicker');
if (datepicker) {
datepicker.addEventListener('value-changed', e => {
this.value = e.detail;
const popup = closest(datepicker, 'tp-popup');
if (popup) {
popup.close();
}
});
}
}
get inputs() {
return this.shadowRoot.querySelectorAll('tp-input');
}
/**
* Returns current validation state of the control.
*/
validate() {
this.inputs[0].validate();
this.inputs[1].validate();
this.inputs[2].validate();
if (this.optional && this.inputs[0].value === '' && this.inputs[1].value === '' && this.inputs[2].value === '') {
this.invalid = false;
return true;
}
const maxDate = this._getMaxDate(this.maxDate);
if ((this.inputs[0].invalid || this.inputs[1].invalid || this.inputs[2].invalid) ||
!this.dateValid(this.value, maxDate)) {
this.invalid = true;
return false;
}
this.invalid = false;
return true;
}
focus() {
this.inputs[0].select();
}
/**
* Test is a date is selectable when considering all restricting options
* of the control, like allowedDates, maxDate, ...
*/
dateValid(date, maxDate = this.maxDate, allowedDates = this.allowedDates) {
date = this._toDate(date);
if (isValid(date) === false) {
return false;
}
if ((allowedDates.length > 0 && allowedDates.indexOf(date) === -1) ||
(maxDate && isAfter(date, maxDate))) {
return false;
}
return true;
}
/**
* Reset the control if a parent era-form is reset.
*/
reset() {
this._input0 = '';
this._input1 = '';
this._input2 = '';
this.inputs.forEach(el => el.invalid = false);
this.invalid = false;
this.value = null;
if (this.today) {
this._setToday();
}
}
_inputChanged() {
this._skipOnValueChanged = true;
setTimeout(() => {
this._skipOnValueChanged = false;
});
const i0 = this.inputs[0].value;
const i1 = this.inputs[1].value;
const i2 = this.inputs[2].value;
if (i0 === '' && i1 === '' && i2 === '' && this.optional) {
this.date = null;
this.value = null;
this.invalid = false;
return;
}
if (
i0 === '' || i1 === '' || i2 === '' ||
!(this.inputs[0].validate() && this.inputs[1].validate() && this.inputs[2].validate())
) {
if (this.focused) {
this.date = null;
this.value = null;
if (this.autoValidate) {
this.invalid = true;
}
}
return;
}
const date = parse(i0 + '-' + i1 + '-' + i2, this._inputAssign.join('-'), new Date());
if (isValid(date)) {
this.inputs[0].invalid = false;
this.inputs[1].invalid = false;
this.inputs[2].invalid = false;
this.date = this.timeZone ? zonedTimeToUtc(date, this.timeZone) : date;
this.value = this.date.toISOString();
this.invalid = false;
this.dispatchEvent(new CustomEvent('value-changed', { detail: this.value, bubbles: true, composed: true }));
} else {
this.inputs[0].invalid = true;
this.inputs[1].invalid = true;
this.inputs[2].invalid = true;
this.date = null;
this.value = null;
if (this.autoValidate) {
this.invalid = true;
}
}
}
_setValidator(idx) {
switch (this._inputAssign[idx]) {
case 'dd':
return this._validateDay;
case 'MM':
return this._validateMonth;
case 'y':
return this._validateYear;
}
}
_validateDay(el, value) {
if (typeof value !== 'string') {
return false;
}
if (/^[0-9]+$/.test(value) !== true) {
return false;
}
var v = parseInt(value, 10);
return v >= 1 && v <= 31;
}
_validateMonth(el, value) {
if (typeof value !== 'string') {
return false;
}
if (/^[0-9]+$/.test(value) !== true) {
return false;
}
var v = parseInt(value, 10);
return v >= 1 && v <= 12;
}
_validateYear(el, value) {
if (typeof value !== 'string') {
return false;
}
if (/^[0-9]+$/.test(value) !== true) {
return false;
}
var v = parseInt(value, 10);
return v >= 1900;
}
_setPlaceholder(idx) {
switch (this._inputAssign[idx]) {
case 'dd':
return 'DD';
case 'MM':
return 'MM';
case 'y':
return 'YYYYY';
}
}
_setClass(idx) {
switch (this._inputAssign[idx]) {
case 'dd':
case 'MM':
return '';
case 'y':
return 'year';
}
}
_formatChanged() {
if (!this.format) return;
let _realFormat = this.format;
const types = ['MM', 'dd', 'y'];
this._inputAssign = [];
this.delimiter = this._determineDelimiter(_realFormat);
const parts = _realFormat.split(this.delimiter);
if (parts.length < 2) {
console.warn(this.tagName + ': Unknown format. Fallback to format MM-dd-y');
this.format = 'MM-dd-y';
return;
}
for (let i = 0; i <= 2; ++i) {
for (let a = 0, la = types.length; a < la; ++a) {
if (types[a] === parts[i] || types[a] === parts[i].toLowerCase()) {
parts[i] = parts[i] !== 'MM' ? parts[i].toLowerCase() : parts[i];
this._inputAssign.push(parts[i]);
}
}
}
if (this.value) {
this._onValueChanged();
}
}
_determineDelimiter(format) {
if (format.indexOf('-') > -1) {
return '-';
}
if (format.indexOf('/') > -1) {
return '/';
}
if (format.indexOf('.') > -1) {
return '.';
}
return '/';
}
// Reset invalid state if value was changed.
// This clears up old invalid states if the value was changed programmatically.
_onValueChanged() {
// We skip if the user was just inputting values.
if (this._skipOnValueChanged) {
return;
}
this.invalid = false;
if (this.value === null || this.value === undefined || this.value === 'Invalid date') {
this.date = null;
this.value = null;
this._input0 = '';
this._input1 = '';
this._input2 = '';
return;
}
const date = this._toDate(this.value);
this._input0 = format(date, this._inputAssign[0]);
this._input1 = format(date, this._inputAssign[1]);
this._input2 = format(date, this._inputAssign[2]);
this.date = date;
}
_setToday() {
if (this.today) {
setTimeout(() => {
if (!this.value) {
this.value = new Date().toISOString();
}
});
}
}
_getMaxDate(maxDate) {
if (typeof maxDate !== 'string') return null;
if (maxDate.toLowerCase() === 'today') {
return endOfDay(new Date());
}
return this._toDate(maxDate);
}
_autoMoveCursor(e) {
const target = e.composedPath().find(node => node.tagName === 'TP-INPUT');
const idx = Array.from(this.inputs).findIndex(node => node === target);
if (target.value.length === 2 && idx < 2) {
this.inputs[idx + 1].select();
}
}
_toDate(value) {
if (typeof value === 'string') {
return parseISO(value);
} else {
return value;
}
}
}
window.customElements.define('tp-date-input', TpDateInput);