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97 lines
3.1 KiB
TypeScript
97 lines
3.1 KiB
TypeScript
import { VideoOverlay, LatLngBounds, LatLngBoundsExpression, LatLngExpression } from 'leaflet';
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import {
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registerWithParent,
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buildOptions,
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parseAttributeValue,
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definePropAccessors,
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} from '../core/utils.js';
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import {
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createChildRegisterHandler,
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type ChildEntry,
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LeafletRegisterEvent,
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} from '../core/register.js';
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import type { PropDef, PropTypesFromTable } from '../types/props.js';
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const PROPS = {
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url: { kind: 'str', attr: 'url', default: '' },
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bounds: { kind: 'str', attr: 'bounds', default: '' },
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opacity: { kind: 'num', attr: 'opacity', default: 1.0 },
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alt: { kind: 'str', attr: 'alt', default: '' },
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interactive: { kind: 'bool-on', attr: 'interactive' },
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crossOrigin: { kind: 'str', attr: 'cross-origin', default: '' },
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loop: { kind: 'bool-on', attr: 'loop' },
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autoplay: { kind: 'bool-on', attr: 'autoplay' },
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muted: { kind: 'bool-on', attr: 'muted' },
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playsInline: { kind: 'bool-on', attr: 'playsinline' },
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} satisfies Record<string, PropDef>;
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const PROP_BY_ATTR = new Map<string, string>(
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Object.entries(PROPS).map(([name, spec]) => [spec.attr, name]),
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);
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type PropTypes = PropTypesFromTable<typeof PROPS>;
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const TypedBase = HTMLElement as unknown as new () => HTMLElement & PropTypes;
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export class LeafletVideoOverlay extends TypedBase {
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#obj?: VideoOverlay;
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#children = new Map<HTMLElement, ChildEntry>();
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#childHandler?: (e: LeafletRegisterEvent) => void;
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static get observedAttributes() {
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return Object.values(PROPS).map((s) => s.attr);
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}
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static {
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definePropAccessors(LeafletVideoOverlay.prototype, PROPS);
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}
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connectedCallback() {
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const url = this.getAttribute('url') || '';
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this.#obj = new VideoOverlay(
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url,
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this.#parsedBounds(),
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buildOptions(this, PROPS, ['url', 'bounds']),
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);
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this.#childHandler = createChildRegisterHandler(this.#obj, this.#children);
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this.addEventListener('leaflet-register', this.#childHandler as EventListener);
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registerWithParent(this, this.#obj);
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}
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disconnectedCallback() {
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if (this.#childHandler)
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this.removeEventListener('leaflet-register', this.#childHandler as EventListener);
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this.#children.clear();
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this.#obj?.remove();
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this.#obj = undefined;
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}
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attributeChangedCallback(name: string, _old: string | null, val: string | null) {
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if (!this.#obj) return;
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if (name === 'url') {
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if (val) this.#obj.setUrl(val);
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} else if (name === 'bounds') {
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this.#obj.setBounds(new LatLngBounds(this.#parsedBounds() as LatLngExpression[]));
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} else {
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const propName = PROP_BY_ATTR.get(name);
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if (!propName) return;
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const setter =
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`set${propName.charAt(0).toUpperCase()}${propName.slice(1)}` as keyof VideoOverlay;
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if (typeof this.#obj[setter] === 'function') {
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(this.#obj[setter] as (v: unknown) => void)(parseAttributeValue(val));
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}
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}
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}
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#parsedBounds(): LatLngBoundsExpression {
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const raw = this.getAttribute('bounds');
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return raw ? (JSON.parse(raw) as LatLngBoundsExpression) : [];
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}
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getElement(): HTMLVideoElement | undefined {
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return this.#obj?.getElement();
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}
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}
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customElements.define('leaflet-video-overlay', LeafletVideoOverlay);
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