import Event from '../../event/Event.js'; import HTMLElement from '../html-element/HTMLElement.js'; import * as PropertySymbol from '../../PropertySymbol.js'; import Attr from '../attr/Attr.js'; import EventPhaseEnum from '../../event/EventPhaseEnum.js'; import MouseEvent from '../../event/events/MouseEvent.js'; /** * HTMLDetailsElement * * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLDetailsElement */ export default class HTMLDetailsElement extends HTMLElement { // Events public ontoggle: (event: Event) => void | null = null; /** * Returns the open attribute. */ public get open(): boolean { return this.getAttribute('open') !== null; } /** * Sets the open attribute. * * @param open New value. */ public set open(open: boolean) { if (open) { this.setAttribute('open', ''); } else { this.removeAttribute('open'); } } /** * @override */ public override [PropertySymbol.onSetAttribute]( attribute: Attr, replacedAttribute: Attr | null ): void { super[PropertySymbol.onSetAttribute](attribute, replacedAttribute); if (attribute[PropertySymbol.name] === 'open') { if (attribute[PropertySymbol.value] !== replacedAttribute?.[PropertySymbol.value]) { this.dispatchEvent(new Event('toggle')); } } } /** * @override */ public override [PropertySymbol.onRemoveAttribute](removedAttribute: Attr): void { super[PropertySymbol.onRemoveAttribute](removedAttribute); if (removedAttribute && removedAttribute[PropertySymbol.name] === 'open') { this.dispatchEvent(new Event('toggle')); } } /** * @override */ public override dispatchEvent(event: Event): boolean { const returnValue = super.dispatchEvent(event); if ( !event[PropertySymbol.defaultPrevented] && event[PropertySymbol.target]?.[PropertySymbol.localName] === 'summary' && event.type === 'click' && event.eventPhase === EventPhaseEnum.bubbling && event instanceof MouseEvent ) { this.open = !this.open; } return returnValue; } }