tp-radio/tp-radio.js

113 lines
2.5 KiB
JavaScript

/**
@license
Copyright (c) 2022 trading_peter
This program is available under Apache License Version 2.0
*/
import { FormElement } from '@tp/helpers/form-element.js';
import { ControlState } from '@tp/helpers/control-state.js';
import { Inert } from '@tp/helpers/inert';
import { LitElement, html, css } from 'lit';
class TpRadio extends Inert(ControlState(FormElement(LitElement))) {
static get styles() {
return [
css`
:host {
display: block;
cursor: pointer;
}
.circle {
display: flex;
align-items: center;
justify-content: center;
border: solid 1px var(--tp-radio-color, #000);
background: var(--tp-radio-bg, #fff);
border-radius: 100%;
width: var(--tp-radio-width, 18px);
height: var(--tp-radio-height, 18px);
}
.dot {
border-radius: 100%;
background: var(--tp-radio-dot-color, var(--tp-radio-color, #000));
width: calc(var(--tp-radio-width, 18px) - 4px);
height: calc(var(--tp-radio-height, 18px) - 4px);
opacity: 0;
}
.dot[visible] {
opacity: 1;
}
.wrap {
display: flex;
align-items: center;
}
.label {
margin-left: 8px;
}
`
];
}
render() {
const { checked } = this;
return html`
<div class="wrap" part="wrap" @click=${this.check}>
<div class="circle" part="circle">
<div class="dot" ?visible=${checked}></div>
</div>
<div class="label" part="label"><slot></slot></div>
</div>
`;
}
static get properties() {
return {
checked: { type: Boolean, reflect: true },
role: { type: String, reflect: true },
_value: { type: String },
};
}
constructor() {
super();
this.role = 'radio';
this.checked = false;
this._value = '';
}
firstUpdated() {
super.firstUpdated();
this.setAttribute('tabindex', '0');
}
check() {
this.checked = true;
this.dispatchEvent(new CustomEvent('checked', { detail: this.value, bubbles: true, composed: true }));
}
updated(changes) {
if (changes.has('checked')) {
this.dispatchEvent(new CustomEvent('checked-changed', { detail: this.value, bubbles: true, composed: true }));
}
}
get value() {
if (!this._value !== '') {
return this._value;
}
return this.checked;
}
set value(val) {
this._value = val;
}
}
window.customElements.define('tp-radio', TpRadio);