wj-elements
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WebJET Elements is a modern set of user interface tools harnessing the power of web components designed to simplify web application development.
424 lines (423 loc) • 20.9 kB
JavaScript
var __defProp = Object.defineProperty;
var __defNormalProp = (obj, key, value) => key in obj ? __defProp(obj, key, { enumerable: true, configurable: true, writable: true, value }) : obj[key] = value;
var __publicField = (obj, key, value) => __defNormalProp(obj, typeof key !== "symbol" ? key + "" : key, value);
import WJElement from "./wje-element.js";
import { event } from "./event.js";
const styles = "/*\n[ WJ Textarea ]\n*/\n\n:host {\n width: 100%;\n margin-bottom: var(--wje-textarea-margin-bottom);\n display: block;\n .wrapper {\n display: flex;\n width: 100%;\n border-width: var(--wje-textarea-border-width);\n border-style: var(--wje-textarea-border-style);\n border-color: var(--wje-textarea-border-color);\n border-radius: var(--wje-textarea-border-radius);\n box-sizing: border-box;\n }\n textarea {\n font-family: var(--wje-textarea-font-family);\n color: var(--wje-textarea-color);\n font-size: 14px;\n border: 0 none;\n padding: 0 var(--wje-textarea-padding);\n &:focus {\n outline: none;\n }\n }\n}\n\n:host([invalid]) {\n .error-message {\n display: block;\n }\n .default {\n label {\n opacity: 1 !important;\n color: var(--wje-input-color-invalid) !important;\n animation-name: shake;\n animation-duration: 0.4s;\n animation-iteration-count: 1;\n }\n }\n}\n\n:host([required]) .wrapper::after {\n color: var(--wje-input-color-invalid);\n content: var(--wje-input-required-symbol);\n font-size: 24px;\n position: absolute;\n right: 12px;\n top: 0;\n}\n\n:host([required]) .standard .input-wrapper::after {\n right: 13px;\n top: -20px;\n}\n\n:host([resize='auto']) textarea,\n:host([resize='none']) textarea {\n resize: none;\n}\n\n.native-textarea {\n .input-wrapper {\n width: 100%;\n line-height: normal;\n }\n &.default {\n background-color: var(--wje-textarea-background-color);\n font-family: var(--wje-textarea-font-family);\n position: relative;\n padding-inline: 0;\n padding-top: 0;\n transition: background-color 0.2s ease;\n cursor: text;\n &.focused {\n .wrapper {\n border-color: var(--wje-textarea-border-color-focus) !important;\n }\n label {\n opacity: 0.67;\n font-size: 12px;\n letter-spacing: normal;\n }\n }\n textarea {\n border: none;\n padding-top: 0;\n background: none;\n box-shadow: none;\n width: calc(100% - var(--wje-textarea-padding) * 2);\n max-width: calc(100% - var(--wje-textarea-padding) * 2);\n min-width: calc(100% - var(--wje-textarea-padding) * 2);\n }\n label {\n padding: 0 var(--wje-textarea-padding);\n display: block;\n opacity: 1;\n cursor: text;\n transition: opacity 0.2s ease;\n line-height: var(--wje-textarea-line-height);\n padding-top: 0.25rem;\n &.fade {\n opacity: 0.5;\n font-size: 12px;\n letter-spacing: normal;\n }\n }\n ::slotted([slot='start']) {\n border-left: none;\n border-top: none;\n border-bottom: none;\n }\n\n ::slotted([slot='end']) {\n border-right: none;\n border-top: none;\n border-bottom: none;\n }\n }\n &.standard {\n position: relative;\n border-radius: var(--wje-textarea-border-radius);\n padding: 0;\n transition: background-color 0.2s ease;\n cursor: text;\n &.focused {\n .wrapper {\n border-color: var(--wje-textarea-border-color-focus) !important;\n }\n }\n textarea {\n background-color: var(--wje-textarea-background-color);\n display: block;\n min-height: 32px;\n box-shadow: none;\n width: 100%;\n box-sizing: border-box;\n border-radius: var(--wje-textarea-border-radius);\n }\n label {\n margin: 0;\n display: inline-block;\n opacity: 1;\n cursor: text;\n transition: opacity 0.2s ease;\n line-height: var(--wje-textarea-line-height);\n }\n ::slotted([slot='start']) {\n border-right: none;\n border-radius: var(--wje-textarea-border-radius) 0 0 var(--wje-textarea-border-radius);\n }\n\n ::slotted([slot='end']) {\n border-left: none;\n border-radius: 0 var(--wje-textarea-border-radius) var(--wje-textarea-border-radius) 0;\n }\n\n &.has-start textarea {\n border-top-left-radius: 0;\n border-bottom-left-radius: 0;\n }\n\n &.has-end textarea {\n border-top-right-radius: 0;\n border-bottom-right-radius: 0;\n }\n slot[name='error'] {\n position: static;\n background: transparent;\n padding: 0.25rem 0;\n left: auto;\n transform: none;\n color: var(--wje-textarea-color-invalid);\n font-size: 12px;\n line-height: normal;\n }\n }\n}\n\n.counter {\n float: right;\n}\n\nslot[name='error'] {\n display: none;\n}\n\n:host([invalid]) slot[name='error'] {\n display: block;\n}\n\nslot[name='error'] {\n display: none;\n position: absolute;\n max-width: 100%;\n min-width: auto;\n border-radius: 50px;\n background: black;\n padding: 0.25rem 0.5rem;\n top: 0;\n left: 50%;\n transform: translate(-50%, -50%);\n color: white;\n font-size: var(--wje-font-size-small);\n width: max-content;\n line-height: normal;\n}\n\n@keyframes shake {\n 8%,\n 41% {\n transform: translateX(-4px);\n }\n 25%,\n 58% {\n transform: translateX(4px);\n }\n 75% {\n transform: translateX(-2px);\n }\n 92% {\n transform: translateX(2px);\n }\n 0%,\n 100% {\n transform: translateX(0);\n }\n}\n";
class Textarea extends WJElement {
/**
* Creates an instance of Textarea.
* @class
*/
constructor() {
super();
__publicField(this, "observeFunction", (mutations) => {
mutations.forEach((mutation) => {
if (mutation.type === "attributes") {
const attributeName = mutation.attributeName;
const oldValue = mutation.oldValue;
const newValue = this.getAttribute(attributeName);
console.log(`Attribute ${attributeName} changed from ${oldValue} to ${newValue}`);
}
});
});
__publicField(this, "className", "Textarea");
/**
* Sets the height of the textarea.
*/
__publicField(this, "setTextareaHeight", () => {
if (this.getAttribute("resize") === "auto") {
this.input.style.height = "auto";
this.input.style.height = this.input.scrollHeight + "px";
}
});
/**
* Updates the counter for the textarea.
* @param {Event} e The event object.
*/
__publicField(this, "counterFn", (e) => {
this.counterElement.innerText = e.target.value.length + "/" + this.input.maxLength;
});
this.invalid = false;
this.pristine = true;
this.internals = this.attachInternals();
this.observer = new MutationObserver(this.observeFunction);
}
/**
* Setter for the value attribute.
* @param {string} value The value to set.
*/
set value(value) {
this.internals.setFormValue(value);
if (this.input) this.input.value = value;
this.pristine = false;
this._value = value;
}
/**
* Getter for the value attribute.
* @returns {string} The value of the attribute.
*/
get value() {
var _a;
return ((_a = this.input) == null ? void 0 : _a.value) ?? this._value ?? "";
}
/**
* Sets the `validateOnChange` property. If set to a truthy value, it adds the
* `validate-on-change` attribute to the element. If set to a falsy value, it
* removes the `validate-on-change` attribute from the element.
* @param {boolean} value Determines whether to add or remove the
* `validate-on-change` attribute. A truthy value adds the attribute, whereas a
* falsy value removes it.
*/
set validateOnChange(value) {
if (value) {
this.setAttribute("validate-on-change", "");
} else {
this.removeAttribute("validate-on-change");
}
}
/**
* Getter for the validateOnChange attribute.
* @returns {boolean} Whether the attribute is present.
*/
get validateOnChange() {
return this.hasAttribute("validate-on-change");
}
/**
* Getter for the invalid attribute.
* @returns {boolean} Whether the attribute is present.
*/
get invalid() {
return this.hasAttribute("invalid");
}
/**
* Setter for the invalid attribute.
* @param {boolean} isInvalid Whether the input is invalid.
*/
set invalid(isInvalid) {
if (isInvalid) this.setAttribute("invalid", "");
else this.removeAttribute("invalid");
}
/**
* Getter for the form attribute.
* @returns {HTMLFormElement} The form the input is associated with.
*/
get form() {
return this.internals.form;
}
/**
* Getter for the name attribute.
* @returns {string} The name of the input.
*/
get name() {
return this.getAttribute("name");
}
/**
* Getter for the type attribute.
* @returns {string} The type of the input.
*/
get type() {
return this.localName;
}
/**
* Getter for the validity attribute.
* @returns {ValidityState} The validity state of the input.
*/
get validity() {
return this.internals.validity;
}
/**
* Getter for the validationMessage attribute.
* @returns {string} The validation message of the input.
*/
get validationMessage() {
return this.internals.validationMessage;
}
/**
* Getter for the willValidate attribute.
* @returns {boolean} Whether the input will be validated.
*/
get willValidate() {
return this.internals.willValidate;
}
/**
* Returns the CSS styles for the component.
* @static
* @returns {CSSStyleSheet} The CSS stylesheet
*/
static get cssStyleSheet() {
return styles;
}
/**
* Returns the list of attributes to observe for changes.
* @static
* @returns {Array<string>}
*/
static get observedAttributes() {
return [];
}
set placeholder(value) {
this.setAttribute("placeholder", value);
}
get placeholder() {
return this.getAttribute("placeholder");
}
/**
* Sets up the attributes for the component.
*/
setupAttributes() {
this.isShadowRoot = "open";
if (this.pristine) {
this.value = this.innerHTML;
this.pristine = false;
}
}
beforeDraw() {
this.observer.disconnect();
}
/**
* Draws the component for the textarea.
* @returns {DocumentFragment}
*/
draw() {
let fragment = document.createDocumentFragment();
let native = document.createElement("div");
native.classList.add("native-textarea", this.variant || "default");
native.setAttribute("part", "native");
if (this.hasAttribute("invalid")) native.classList.add("has-error");
let wrapper = document.createElement("div");
wrapper.setAttribute("part", "wrapper");
wrapper.classList.add("wrapper");
let inputWrapper = document.createElement("div");
inputWrapper.classList.add("input-wrapper");
let label = document.createElement("label");
label.setAttribute("part", "label");
label.htmlFor = "textarea";
label.innerHTML = this.label || "";
let input = document.createElement("textarea");
input.id = "textarea";
input.name = this.name;
input.disabled = this.hasAttribute("disabled");
input.innerText = this.value;
input.placeholder = this.placeholder || "";
input.classList.add("form-control");
input.setAttribute("part", "input");
input.setAttribute("rows", this.rows || 3);
input.setAttribute("spellcheck", false);
const attributes = Array.from(this.attributes).map((attr) => attr.name);
attributes.forEach((attr) => {
if (this.hasAttribute(attr)) {
input.setAttribute(attr, this[attr] || "");
}
});
let error = document.createElement("div");
error.setAttribute("slot", "error");
let errorSlot = document.createElement("slot");
errorSlot.setAttribute("name", "error");
if (this.resize === "auto") input.addEventListener("input", this.setTextareaHeight);
if (this.variant === "standard") {
if (this.label) native.appendChild(label);
} else {
inputWrapper.appendChild(label);
}
inputWrapper.appendChild(input);
wrapper.appendChild(inputWrapper);
native.appendChild(wrapper);
native.append(errorSlot);
this.append(error);
fragment.appendChild(native);
if (this.hasAttribute("counter")) {
input.maxLength = this.maxLength || 1e3;
input.addEventListener("input", this.counterFn);
let counter = document.createElement("div");
counter.classList.add("counter");
counter.innerText = `${input.value.length}/${input.maxLength}`;
this.counterElement = counter;
fragment.appendChild(counter);
}
this.native = native;
this.labelElement = label;
this.input = input;
return fragment;
}
/**
* Sets up the event listeners after the component is drawn.
*/
afterDraw() {
this.resizeObserver = new ResizeObserver(() => this.setTextareaHeight);
if (!this.hasAttribute("disabled")) {
event.addListener(this, "click", "wje-textarea:change");
event.addListener(this, "click", "wje-textarea:input");
}
this.input.addEventListener("focus", (e) => {
this.labelElement.classList.add("fade");
this.native.classList.add("focused");
});
this.input.addEventListener("blur", (e) => {
this.native.classList.remove("focused");
if (!e.target.value) this.labelElement.classList.remove("fade");
});
this.addEventListener("wje-textarea:invalid", (e) => {
this.invalid = true;
this.pristine = false;
this.showInvalidMessage();
if (this.customErrorDisplay) {
e.preventDefault();
}
});
this.input.addEventListener("input", (e) => {
this.validateInput();
if (this.validateOnChange) {
this.pristine = false;
this.propagateValidation();
}
this.input.classList.remove("pristine");
this.labelElement.classList.add("fade");
const clone = new e.constructor(e.type, e);
this.dispatchEvent(clone);
event.dispatchCustomEvent(this, "wje-textarea:input", {
value: this.input.value
});
this.value = this.input.value;
});
this.validateInput();
this.observer.observe(this, {
attributes: true,
// Watch for attribute changes
attributeOldValue: true
// Keep track of the old value of attributes
});
}
componentCleanup() {
var _a;
this.observer.disconnect();
(_a = this.resizeObserver) == null ? void 0 : _a.unobserve(this.input);
}
/**
* Disconnects the component.
*/
beforeDisconnect() {
var _a;
(_a = this.resizeObserver) == null ? void 0 : _a.unobserve(this.input);
}
/**
* @summary Displays the validation message for the input.
* If the input has a slot named 'error', it sets the text content of the element with attribute 'error-message' inside the slot to the validation message.
* If the input does not have an 'error' slot, it sets the text content of the errorMessage property to the validation message.
*/
showInvalidMessage() {
{
const slot = this.querySelector("[slot='error']");
let errorMessageEL = slot.querySelector("[error-message]");
if (!errorMessageEL) {
const error = document.createElement("div");
error.setAttribute("error-message", "");
slot.append(error);
errorMessageEL = error;
}
errorMessageEL.textContent = this.internals.validationMessage;
}
}
/**
* @summary Validates the input.
* This method checks the validity state of the input. If the input is not valid, it iterates over the validity state object.
* For each invalid state, it constructs an attribute name and checks if the input has this attribute.
* If the input has the attribute, it sets the validation error to the state and the error message to the attribute value.
* If the input does not have the attribute, it sets the error message to the default validation message of the input.
* It then sets the validity in the form internals to an object with the validation error as key and true as value, and the error message.
* If the input is valid, it sets the validity in the form internals to an empty object.
*/
validateInput() {
const validState = this.input.validity;
if (!validState.valid) {
for (let state in validState) {
const attr = `message-${state.toString()}`;
if (validState[state]) {
this.validationError = state.toString();
let errorMessage = this.message;
if (!this.hasAttribute("message"))
errorMessage = this.hasAttribute(attr) ? this.getAttribute(attr) : this.input.validationMessage;
this.internals.setValidity({ [this.validationError]: true }, errorMessage);
}
}
} else {
this.internals.setValidity({});
}
}
/**
* @summary Propagates the validation state of the input.
* This method sets the 'invalid' property of the input based on its 'pristine' state and its internal validity state.
* If the input is invalid and the 'customErrorDisplay' property is true, it dispatches an 'invalid' event.
*/
propagateValidation() {
this.invalid = !this.pristine && !this.internals.validity.valid;
if (this.invalid) {
this.dispatchEvent(new Event("wje-textarea:invalid"));
}
}
/**
* @summary Callback function that is called when the custom element is associated with a form.
* This function adds an event listener to the form's submit event, which validates the input and propagates the validation.
* @param {HTMLFormElement} form The form the custom element is associated with.
*/
formAssociatedCallback(form) {
this.internals.setFormValue(this.value);
form == null ? void 0 : form.addEventListener("submit", () => {
this.validateInput();
this.propagateValidation();
});
}
/**
* The formResetCallback method is a built-in lifecycle callback that gets called when a form gets reset.
* This method is responsible for resetting the value of the custom input element to its default value.
* It also resets the form value and validity state in the form internals.
* @function
*/
formResetCallback() {
this.value = this.defaultValue;
this.internals.setFormValue(this.defaultValue);
this.internals.setValidity({});
}
/**
* The formStateRestoreCallback method is a built-in lifecycle callback that gets called when the state of a form-associated custom element is restored.
* This method is responsible for restoring the value of the custom input element to its saved state.
* It also restores the form value and validity state in the form internals to their saved states.
* @param {object} state The saved state of the custom input element.
* @function
*/
formStateRestoreCallback(state) {
this.value = state.value;
this.internals.setFormValue(state.value);
this.internals.setValidity({});
}
/**
* The formStateSaveCallback method is a built-in lifecycle callback that gets called when the state of a form-associated custom element is saved.
* This method is responsible for saving the value of the custom input element.
* @returns {object} The saved state of the custom input element.
* @function
*/
formStateSaveCallback() {
return {
value: this.value
};
}
/**
* The formDisabledCallback method is a built-in lifecycle callback that gets called when the disabled state of a form-associated custom element changes.
* This method is not implemented yet.
* @param {boolean} disabled The new disabled state of the custom input element.
* @function
*/
formDisabledCallback(disabled) {
console.warn("formDisabledCallback not implemented yet");
}
}
/**
* Whether the input is associated with a form.
* @type {boolean}
*/
__publicField(Textarea, "formAssociated", true);
Textarea.define("wje-textarea", Textarea);
export {
Textarea as default
};
//# sourceMappingURL=wje-textarea.js.map