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64 lines
1.8 KiB
TypeScript
64 lines
1.8 KiB
TypeScript
import { Circle } from 'leaflet';
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import { WithProps, defineProps, num, str, on } from '../core/props.ts';
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import { registerChildren, unregisterChildren } from '../core/register.ts';
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import { buildOptions, isPathStyleAttr, numAttr, updatePathStyle } from '../core/utils.ts';
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const PROPS = defineProps({
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lat: num(),
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lng: num(),
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radius: num(1000),
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color: str('#3388ff'),
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weight: num(3),
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opacity: num(1.0),
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fill: on(),
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fillColor: str('#3388ff'),
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fillOpacity: num(0.2),
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});
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export class LeafletCircle extends WithProps(HTMLElement, PROPS) {
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#obj?: Circle;
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#syncing = false;
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connectedCallback() {
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this.#obj = new Circle(
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[numAttr(this, PROPS, 'lat'), numAttr(this, PROPS, 'lng')],
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buildOptions(this, PROPS, ['lat', 'lng']),
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);
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this.#obj.on('move', this.#onMove, this);
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registerChildren(this, this.#obj);
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}
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disconnectedCallback() {
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this.#obj?.off('move', this.#onMove, this);
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unregisterChildren(this);
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this.#obj?.remove();
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this.#obj = undefined;
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}
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get leafletObject() {
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return this.#obj;
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}
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attributeChangedCallback(name: string, _old: string | null, val: string | null) {
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if (!this.#obj || this.#syncing) return;
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if (name === 'lat' || name === 'lng') {
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this.#obj.setLatLng([numAttr(this, PROPS, 'lat'), numAttr(this, PROPS, 'lng')]);
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} else if (name === 'radius') {
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this.#obj.setRadius(numAttr(this, PROPS, 'radius'));
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} else if (isPathStyleAttr(name)) {
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updatePathStyle(this.#obj, name, val);
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}
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}
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#onMove() {
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if (!this.#obj || this.#syncing) return;
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this.#syncing = true;
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const pos = this.#obj.getLatLng();
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this.setAttribute('lat', `${pos.lat}`);
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this.setAttribute('lng', `${pos.lng}`);
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this.#syncing = false;
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}
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}
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customElements.define('leaflet-circle', LeafletCircle);
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