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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at htp://mozilla.org/MPL/2.0/. */
import { html, ifDefined } from "../vendor/lit.all.mjs";
import { MozLitElement } from "../lit-utils.mjs";
export default class MozToggle extends MozLitElement {
static properties = {
pressed: { type: Boolean, reflect: true },
disabled: { type: Boolean, reflect: true },
label: { type: String },
description: { type: String },
ariaLabel: { type: String, attribute: "aria-label" },
};
static get queries() {
return {
buttonEl: "#moz-toggle-button",
labelEl: "#moz-toggle-label",
descriptionEl: "#moz-toggle-description",
};
}
// Use a relative URL in storybook to get faster reloads on style changes.
static stylesheetUrl = window.IS_STORYBOOK
? "./moz-toggle/moz-toggle.css"
: "chrome://global/content/elements/moz-toggle.css";
constructor() {
super();
this.pressed = false;
this.disabled = false;
}
handleClick() {
this.pressed = !this.pressed;
this.dispatchOnUpdateComplete(
new CustomEvent("toggle", {
bubbles: true,
composed: true,
})
);
}
labelTemplate() {
if (this.label) {
return html`
<label id="moz-toggle-label" part="label" for="moz-toggle-button">
${this.label}
</label>
`;
}
return "";
}
descriptionTemplate() {
if (this.description) {
return html`
<p id="moz-toggle-description" part="description">
${this.description}
</p>
`;
}
return "";
}
render() {
const { pressed, disabled, description, ariaLabel, handleClick } = this;
return html`
<link rel="stylesheet" href=${this.constructor.stylesheetUrl} />
${this.labelTemplate()} ${this.descriptionTemplate()}
<button
id="moz-toggle-button"
part="button"
type="button"
class="toggle-button"
?disabled=${disabled}
aria-pressed=${pressed}
aria-label=${ifDefined(ariaLabel ?? undefined)}
aria-describedby=${ifDefined(
description ? "moz-toggle-description" : undefined
)}
@click=${handleClick}
></button>
`;
}
}
customElements.define("moz-toggle", MozToggle);
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