forked from MapComplete/MapComplete
108 lines
4.4 KiB
TypeScript
108 lines
4.4 KiB
TypeScript
import { Store, UIEventSource } from "../../Logic/UIEventSource"
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import StaticFeatureSource from "../../Logic/FeatureSource/Sources/StaticFeatureSource"
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import { SpecialVisualization, SpecialVisualizationState } from "../SpecialVisualization"
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import { Feature } from "geojson"
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import { MapLibreAdaptor } from "../Map/MapLibreAdaptor"
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import SvelteUIElement from "../Base/SvelteUIElement"
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import MaplibreMap from "../Map/MaplibreMap.svelte"
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import ShowDataLayer from "../Map/ShowDataLayer"
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import LayerConfig from "../../Models/ThemeConfig/LayerConfig"
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import { GeoOperations } from "../../Logic/GeoOperations"
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import { BBox } from "../../Logic/BBox"
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export class MinimapViz implements SpecialVisualization {
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funcName = "minimap"
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docs = "A small map showing the selected feature."
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args = [
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{
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doc: "The (maximum) zoomlevel: the target zoomlevel after fitting the entire feature. The minimap will fit the entire feature, then zoom out to this zoom level. The higher, the more zoomed in with 1 being the entire world and 19 being really close",
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name: "zoomlevel",
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defaultValue: "18",
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},
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{
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doc: "(Matches all resting arguments) This argument should be the key of a property of the feature. The corresponding value is interpreted as either the id or the a list of ID's. The features with these ID's will be shown on this minimap. (Note: if the key is 'id', list interpration is disabled)",
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name: "idKey",
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defaultValue: "id",
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},
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]
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example: "`{minimap()}`, `{minimap(17, id, _list_of_embedded_feature_ids_calculated_by_calculated_tag):height:10rem; border: 2px solid black}`"
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constr(
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state: SpecialVisualizationState,
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tagSource: UIEventSource<Record<string, string>>,
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args: string[],
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feature: Feature,
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layer: LayerConfig
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) {
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if (state === undefined || feature === undefined || layer.source === undefined) {
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return undefined
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}
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const keys = [...args]
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keys.splice(0, 1)
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const featuresToShow: Store<Feature[]> = state.indexedFeatures.featuresById.map(
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(featuresById) => {
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if (featuresById === undefined) {
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return []
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}
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const properties = tagSource.data
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const features: Feature[] = []
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for (const key of keys) {
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const value = properties[key]
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if (value === undefined || value === null) {
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continue
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}
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let idList = [value]
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if (key !== "id" && value.startsWith("[")) {
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// This is a list of values
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idList = JSON.parse(value)
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}
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for (const id of idList) {
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const feature = featuresById.get(id)
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if (feature === undefined) {
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console.warn("No feature found for id ", id)
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continue
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}
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features.push(feature)
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}
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}
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return features
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},
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[tagSource]
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)
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const mlmap = new UIEventSource(undefined)
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const mla = new MapLibreAdaptor(mlmap)
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let zoom = 18
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if (args[0]) {
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const parsed = Number(args[0])
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if (!isNaN(parsed) && parsed > 0 && parsed < 25) {
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zoom = parsed
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}
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}
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featuresToShow.addCallbackAndRunD((features) => {
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if (features.length === 0) {
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return
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}
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const bboxGeojson = GeoOperations.bbox({ features, type: "FeatureCollection" })
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const [lon, lat] = GeoOperations.centerpointCoordinates(bboxGeojson)
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mla.bounds.setData(BBox.get(bboxGeojson))
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mla.location.setData({ lon, lat })
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})
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mla.zoom.setData(zoom)
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mla.allowMoving.setData(false)
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mla.allowZooming.setData(false)
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ShowDataLayer.showMultipleLayers(
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mlmap,
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new StaticFeatureSource(featuresToShow),
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state.layout.layers
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)
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return new SvelteUIElement(MaplibreMap, { map: mlmap })
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.SetClass("h-40 rounded")
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.SetStyle("overflow: hidden; pointer-events: none;")
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}
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}
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