forked from MapComplete/MapComplete
78 lines
2.2 KiB
Svelte
78 lines
2.2 KiB
Svelte
<script lang="ts">
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import { onDestroy, onMount } from "svelte"
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import type { Map } from "maplibre-gl"
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import * as maplibre from "maplibre-gl"
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import type { Readable, Writable } from "svelte/store"
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import { get, writable } from "svelte/store"
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import { AvailableRasterLayers } from "../../Models/RasterLayers"
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import { Utils } from "../../Utils"
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import { ariaLabel } from "../../Utils/ariaLabel"
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import Translations from "../i18n/Translations"
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/**
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* The 'MaplibreMap' maps various event sources onto MapLibre.
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*/
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/**
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* Beware: this map will _only_ be set by this component
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* It should thus be treated as a 'store' by external parties
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*/
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export let map: Writable<Map>
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export let interactive: boolean = true
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let container: HTMLElement
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export let center: { lng: number; lat: number } | Readable<{ lng: number; lat: number }> =
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writable({ lng: 0, lat: 0 })
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export let zoom: Readable<number> = writable(1)
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const styleUrl = AvailableRasterLayers.maptilerDefaultLayer.properties.url
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let _map: Map
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onMount(() => {
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let _center: { lng: number; lat: number }
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if (typeof center["lng"] === "number" && typeof center["lat"] === "number") {
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_center = <any>center
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} else {
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_center = get(<any>center)
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}
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_map = new maplibre.Map({
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container,
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style: styleUrl,
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zoom: get(zoom),
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center: _center,
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maxZoom: 24,
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interactive: true,
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attributionControl: false,
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})
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window.requestAnimationFrame(() => {
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_map.resize()
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})
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_map.on("load", function () {
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_map.resize()
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const canvas = _map.getCanvas()
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if (interactive) {
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ariaLabel(canvas, Translations.t.general.visualFeedback.navigation)
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canvas.role = "application"
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canvas.tabIndex = 0
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} else {
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canvas.tabIndex = -1
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_map.getContainer().tabIndex = -1
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}
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})
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map.set(_map)
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})
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onDestroy(async () => {
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await Utils.waitFor(250)
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if (_map) _map.remove()
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map = null
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})
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</script>
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<svelte:head>
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<link href="./maplibre-gl.css" rel="stylesheet" />
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</svelte:head>
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<div bind:this={container} class="map relative top-0 left-0 h-full w-full" id="map" />
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