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54 lines
1.6 KiB
TypeScript
54 lines
1.6 KiB
TypeScript
import { SVGOverlay, LatLngBounds, LatLngExpression } from 'leaflet';
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import type { ImageOverlayOptions } from 'leaflet';
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import { WithProps, defineProps, num, str, on, buildOptions } from '../core/props.ts';
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import { registerChildren, unregisterChildren } from '../core/register.ts';
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import { buildAttrMap, parseBoundsAttr, setLayerAttr } from '../core/attributes.ts';
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const PROPS = defineProps({
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bounds: str(),
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opacity: num(1.0),
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interactive: on(),
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crossOrigin: str(),
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zIndex: num(),
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className: str(),
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});
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const PROP_BY_ATTR = buildAttrMap(PROPS);
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export class LeafletSVGOverlay extends WithProps(HTMLElement, PROPS) {
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#obj?: SVGOverlay;
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connectedCallback() {
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const svg = this.querySelector('svg');
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const dummy = !svg ? document.createElementNS('http://www.w3.org/2000/svg', 'svg') : undefined;
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this.#obj = new SVGOverlay(
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// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
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svg ?? dummy!,
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parseBoundsAttr(this),
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buildOptions(this, PROPS, ['bounds']) as ImageOverlayOptions,
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);
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registerChildren(this, this.#obj);
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}
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disconnectedCallback() {
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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) return;
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if (name === 'bounds') {
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this.#obj.setBounds(new LatLngBounds(parseBoundsAttr(this) as LatLngExpression[]));
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} else {
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setLayerAttr(this.#obj, PROPS, PROP_BY_ATTR, name, val);
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}
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}
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}
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customElements.define('leaflet-svg-overlay', LeafletSVGOverlay);
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