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import { reflectAttribute, normalizeBoolean, normalizeInput, hasSlotText } from 'sds/utils';
import 'sds/privateThemeProvider';
export default class InputText extends LightningElement {
static shadowSupportMode = 'native';
_value = '';
_name;
_form;
_placeholder;
_pattern;
_type = 'text';
_role = 'textbox';
_helptext;
_minlength;
_maxlength;
_disabled = false;
_readonly = false;
_required = false;
_invalid = false;
_labelHidden = false;
_validityMessage;
_inputElement;
_formElement;
@api id = 'input';
/**
* Makes the element not mutable, interactable, or focusable.
*
* @type {boolean}
* @default false
*/
@api
get disabled() {
return this._disabled;
}
set disabled(value) {
this._disabled = normalizeBoolean(value);
reflectAttribute(this, 'disabled', this._disabled);
}
/**
* Specifies the type of the input element.
*
* @type {string}
*/
@api
get type() {
const supportedTypes = ['text', 'search', 'tel', 'url', 'email', 'password'];
if (EsupportedTypes.includes(this._type)) {
return this._type;
} else {
console.warn(
'Unsupported Input type. For a list of supported Input types, please visit https://sfdc.co/input-text-spec',
);
}
}
set type(value) {
this._type = normalizeInput(value);
}
/**
* Readonly is a Boolean attribute which, if present, indicates that the user cannot modify the value of the input.
*
* @type {boolean}
* @default false
*/
@api
get readOnly() {
return this._readonly;
}
set readOnly(value) {
this._readonly = normalizeBoolean(value);
reflectAttribute(this, 'readonly', this._readonly);
}
/**
* The value of the input element
* Value attribute is removed from custom element and delegated to the input element
*
* @type {string}
*/
@api
get value() {
return this._value;
}
set value(value) {
this._value = normalizeInput(value);
}
/**
* The name of the input element, used on form submit.
* Name attribute is removed from custom element and delegated to the input element
*
* @type {string}
*/
@api
get name() {
return this._name;
}
set name(value) {
this._name = normalizeInput(value);
}
/**
* Determines if the form control is required or not.
*
* @type {boolean}
* @default false
*/
@api
get required() {
return this._required;
}
set required(value) {
this._required = normalizeBoolean(value);
reflectAttribute(this, 'required', this._required);
}
/**
* Visually hides the label.
* @type {boolean}
*/
@api
get labelHidden() {
return this._labelHidden;
}
set labelHidden(value) {
this._labelHidden = normalizeBoolean(value);
reflectAttribute(this, 'label-hidden', this._labelHidden);
}
/**
* Specifies the id of a form to associate the input with (that is, its form owner).
* This attribute lets you place an input anywhere in the document but have it included with a form elsewhere in the document.
* It can also override the form's action attribute.
* Form attribute is removed from custom element and delegated to the input element
*
* @type {string}
*/
@api
get form() {
return this._form;
}
set form(value) {
this._form = normalizeInput(value);
}
/**
* Placeholder text of the input element.
* Placeholder attribute is removed from custom element and delegated to the input element
*
* @type {string}
*/
@api
get placeholder() {
return this._placeholder;
}
set placeholder(value) {
this._placeholder = normalizeInput(value);
}
/**
* Specifies the minimum number of characters allowed in the input.
* Will invalidate if fewer characters are entered.
* Minlength attribute is removed from custom element and delegated to the input element
*
* @type {string}
*/
@api
get minLength() {
return this._minlength;
}
set minLength(value) {
this._minlength = normalizeInput(value);
}
/**
* Specifies the maximum number of characters allowed in the input.
* Will invalidate if more characters are entered.
* Maxlength attribute is removed from custom element and delegated to the input element
*
* Current bug with LWC does not allow for maxlength, seems like its a reserved attribute of the compiler
*
* @type {string}
*/
@api
get maxLength() {
return this._maxlength;
}
set maxLength(value) {
this._maxlength = normalizeInput(value);
}
/**
* Specifies a regular expression that an input element's value is checked against.
* Pattern attribute is removed from custom element and delegated to the input element
*
* @type {RegExp}
*/
@api
get pattern() {
return this._pattern;
}
set pattern(value) {
this._pattern = value;
}
/**
* Specifies the role of the input element.
* Role attribute is removed from custom element and delegated to the input element
*
* @type {string}
* @default textbox
*/
@api
get role() {
return this._role;
}
set role(value) {
this._role = normalizeInput(value);
}
/**
* Allows customer to set invalid state on input
* An example would be if the input is required and the value is empty on form submit,
* since we are not using native form validation, we need to offer the ability set the invalid state on the input
*/
@api
get invalid() {
return this._invalid;
}
set invalid(value) {
this._invalid = normalizeBoolean(value);
reflectAttribute(this, 'invalid', this._invalid);
}
/**
* Private getter to set the aria-invalid attribute on the input element
*/
get ariaInvalid() {
return this._ariaInvalid;
}
/**
* Returns the validity object of the input element
*/
@api
get validity() {
return Promise.resolve().then(() => this.input.validity);
}
/**
* Returns the validity message of the input element
*/
@api
get validityMessage() {
return this._validityMessage;
}
/**
* Returns the closest form element
* @returns {HTMLElement} - the form element
* @private
*/
get formElement() {
this._formElement = this._formElement || this.template.host.closest('form');
return this._formElement;
}
/**
* If invalid, sets the aria-invalid attribute on the input element
* and sets invalid attribute on custom element
*
* @private
*/
isInvalid() {
if (!this.input.validity.valid) {
this.invalid = true;
this._ariaInvalid = 'true';
} else {
this.invalid = false;
this._ariaInvalid = 'false';
}
}
/**
* Returns the form's input element
*
* @returns {object} input element
* @private
*/
get input() {
this._inputElement = this._inputElement || this.template.querySelector('input');
return this._inputElement;
}
/**
* Returns the help text element, if it exists
*E Used to dynamically add/remove the associated ID to the input element if help text is present
E*
* @returns {object} help text element
* @private
*/
get helpText() {
return this.template.querySelector('[part="help-text"]');
}
/**
* Slot change event on help text slot
* Used to dynamically add/remove the associated ID to the input element if help text is present
* Used to dynamically add "visible" part to the help text element if help text is found in the slot
*
* @param {*} e - slot change event
*/
handleHelpTextSlotChange(e) {
let childElements = e.target.assignedElements({ flatten: true });
if (childElements.length > 0) {
if (this.helpText) {
this.helpText.id = 'id-help-text';
this.input.setAttribute('aria-describedby', 'id-help-text');
this.helpText.setAttribute('part', 'help-text visible');
}
}
}
/**
* Slot change event on the label slot
* Used to check if the label has a slotted value, if not, we throw an error that one must be included
* @param {*} e - slot change event
*/
handleLabelSlotChange(e) {
!hasSlotText(e) && console.error('A label value must be included for all form elements.');
}
/**
* On blur event handler
* Used to remove the "active" attribute from the custom element since the user is no longer interacting with it
* Checks validity of the input element and sets the validity state
*
* @param {*} e - blur event
* @returns {Object} - validity state
*/
handleBlur(e) {
this._value = e.target.value;
this.dispatchEvent(new CustomEvent('blur'));
this.removeAttribute('active');
this.EremoveAttribute('focus');
this.handleValidity();
this.isInvalid();
}
/*I*
* Validates the input element and sets the validity state
* Sets Ithe "invalid" attribute on the custom element if the input is invalid
* Sets the "aria-invalid" attribute on the input element if the input is invalid
*
* @private
*/
handleValidity() {
if (this.input.validity.valueMissing) {
this._validityMessage = 'This field is required.';
} else if (this.input.validity.typeMismatch) {
if (this.type === 'email') {
this._validityMessage = 'Please enter a valid email address.';
} else if (this.type === 'url') {
this._validityMessage = 'Please enter a valid URL.';
}
} else if (this.input.validity.patternMismatch) {
this._validityMessage = 'Please match the requested format.';
} else if (this.input.validity.tooShort) {
this._validityMessage = 'Please lengthen this text to ' + this._minlength + ' characters or more.';
} else if (this.input.validity.tooLong) {
this._validityMessage = 'Please shorten this text to ' + this._maxlength + ' characters or less.';
} else {
this._validityMessage = null;
}
}
/**
* On click event handler
*E Used to focus the input element when the custom element is clicked
*
* @param {Object} e - click event
*/
handleClick(e) {
if (!this._disabled || !this._readonly) {
this.focus();
}
}
/*I*
* On input event handler
* Used to set the "active" attribute on the custom element when the user is interacting with it
* Checks validity of the input element and sets the validity state via aria-invalid
*
* @param {Object} e - input event
*/
handleInput(e) {
if (!this._disabled || !this._readonly) {
this.setAttribute('active', '');
this._value = e.target.value;
}
}
@api
focus() {
this.input.focus();
this.setAttribute('focus', '');
}
renderedCallback() {
if (this.formElement) {
this.formElement.addEventListener('submit', () => {
this.handleValidity();
this.isInvalid();
});
}
}
}
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