forked from MapComplete/MapComplete
652 lines
24 KiB
TypeScript
652 lines
24 KiB
TypeScript
import { ImmutableStore, Store, UIEventSource } from "../../Logic/UIEventSource"
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import type { AddLayerObject, Alignment, Map as MlMap } from "maplibre-gl"
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import { GeoJSONSource, Marker } from "maplibre-gl"
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import { ShowDataLayerOptions } from "./ShowDataLayerOptions"
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import { GeoOperations } from "../../Logic/GeoOperations"
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import LayerConfig from "../../Models/ThemeConfig/LayerConfig"
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import PointRenderingConfig from "../../Models/ThemeConfig/PointRenderingConfig"
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import { OsmTags } from "../../Models/OsmFeature"
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import { FeatureSource, FeatureSourceForLayer } from "../../Logic/FeatureSource/FeatureSource"
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import { BBox } from "../../Logic/BBox"
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import { Feature, Point } from "geojson"
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import LineRenderingConfig from "../../Models/ThemeConfig/LineRenderingConfig"
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import { Utils } from "../../Utils"
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import * as range_layer from "../../../assets/layers/range/range.json"
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import PerLayerFeatureSourceSplitter from "../../Logic/FeatureSource/PerLayerFeatureSourceSplitter"
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import FilteredLayer from "../../Models/FilteredLayer"
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import SimpleFeatureSource from "../../Logic/FeatureSource/Sources/SimpleFeatureSource"
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import { TagsFilter } from "../../Logic/Tags/TagsFilter"
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import { LayerConfigJson } from "../../Models/ThemeConfig/Json/LayerConfigJson"
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class PointRenderingLayer {
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private readonly _config: PointRenderingConfig
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private readonly _visibility?: Store<boolean>
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private readonly _fetchStore?: (id: string) => Store<Record<string, string>>
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private readonly _map: MlMap
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private readonly _onClick: (feature: Feature) => void
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private readonly _allMarkers: Map<string, Marker> = new Map<string, Marker>()
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private readonly _selectedElement: Store<{ properties: { id?: string } }>
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private readonly _markedAsSelected: HTMLElement[] = []
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private readonly _metatags: Store<Record<string, string>>
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private _dirty = false
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constructor(
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map: MlMap,
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layer: LayerConfig,
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features: FeatureSource,
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config: PointRenderingConfig,
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metatags?: Store<Record<string, string>>,
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visibility?: Store<boolean>,
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fetchStore?: (id: string) => Store<Record<string, string>>,
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onClick?: (feature: Feature) => void,
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selectedElement?: Store<{ properties: { id?: string } }>
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) {
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this._visibility = visibility
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this._config = config
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this._map = map
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this._metatags = metatags
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this._fetchStore = fetchStore
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this._onClick = onClick
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this._selectedElement = selectedElement
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if (!features?.features) {
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throw (
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"Could not setup a PointRenderingLayer; features?.features is undefined/null. The layer is " +
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layer.id
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)
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}
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features.features?.addCallbackAndRunD((features) => this.updateFeatures(features))
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visibility?.addCallbackAndRunD((visible) => {
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if (visible === true && this._dirty) {
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this.updateFeatures(features.features.data)
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}
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this.setVisibility(visible)
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})
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selectedElement?.addCallbackAndRun((selected) => {
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this._markedAsSelected.forEach((el) => el.classList.remove("selected"))
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this._markedAsSelected.splice(0, this._markedAsSelected.length)
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if (selected === undefined) {
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return
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}
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PointRenderingConfig.allowed_location_codes.forEach((code) => {
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const marker = this._allMarkers
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.get(selected.properties?.id + "-" + code)
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?.getElement()
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if (marker === undefined) {
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return
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}
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marker?.classList?.add("selected")
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this._markedAsSelected.push(marker)
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})
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})
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}
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private updateFeatures(features: Feature[]) {
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if (this._visibility?.data === false) {
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this._dirty = true
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return
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}
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this._dirty = false
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const cache = this._allMarkers
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const unseenKeys = new Set(cache.keys())
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for (const location of this._config.location) {
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for (const feature of features) {
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if (feature?.geometry === undefined) {
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console.warn(
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"Got an invalid feature:",
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features,
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" while rendering",
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location,
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"of",
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this._config
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)
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}
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const id = feature.properties.id + "-" + location
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unseenKeys.delete(id)
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if (location === "waypoints") {
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if (feature.geometry.type === "LineString") {
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for (const loc of feature.geometry.coordinates) {
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this.addPoint(feature, <[number, number]>loc)
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}
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}
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if (
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feature.geometry.type === "MultiLineString" ||
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feature.geometry.type === "Polygon"
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) {
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for (const coors of feature.geometry.coordinates) {
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for (const loc of coors) {
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this.addPoint(feature, <[number, number]>loc)
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}
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}
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}
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continue
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}
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const loc = GeoOperations.featureToCoordinateWithRenderingType(feature, location)
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if (loc === undefined) {
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continue
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}
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if (cache.has(id)) {
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const cached = cache.get(id)
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const oldLoc = cached.getLngLat()
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if (loc[0] !== oldLoc.lng && loc[1] !== oldLoc.lat) {
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cached.setLngLat(loc)
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}
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continue
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}
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const marker = this.addPoint(feature, loc)
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if (this._selectedElement?.data === feature.properties.id) {
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marker.getElement().classList.add("selected")
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this._markedAsSelected.push(marker.getElement())
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}
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cache.set(id, marker)
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}
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}
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for (const unseenKey of unseenKeys) {
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cache.get(unseenKey).remove()
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cache.delete(unseenKey)
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}
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}
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private setVisibility(visible: boolean) {
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for (const marker of this._allMarkers.values()) {
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if (visible) {
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marker.getElement().classList.remove("hidden")
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} else {
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marker.getElement().classList.add("hidden")
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}
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}
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}
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private addPoint(feature: Feature, loc: [number, number]): Marker {
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let store: Store<Record<string, string>>
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if (this._fetchStore) {
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store = this._fetchStore(feature.properties.id)
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} else {
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store = new ImmutableStore(<OsmTags>feature.properties)
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}
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const { html, iconAnchor } = this._config.RenderIcon(store, { metatags: this._metatags })
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html.SetClass("marker")
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if (this._onClick !== undefined) {
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html.SetClass("cursor-pointer")
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}
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const el = html.ConstructElement()
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store.addCallbackAndRunD((tags) => {
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if (tags._deleted === "yes") {
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html.SetClass("grayscale")
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}
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})
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if (this._onClick) {
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el.addEventListener("click", (ev) => {
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ev.preventDefault()
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this._onClick(feature)
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// Workaround to signal the MapLibreAdaptor to ignore this click
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ev["consumed"] = true
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})
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}
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const marker = new Marker({ element: el })
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.setLngLat(loc)
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.setOffset(iconAnchor)
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.addTo(this._map)
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store
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.map((tags) => this._config.pitchAlignment.GetRenderValue(tags).Subs(tags).txt)
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.addCallbackAndRun((pitchAligment) =>
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marker.setPitchAlignment(<Alignment>pitchAligment)
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)
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store
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.map((tags) => this._config.rotationAlignment.GetRenderValue(tags).Subs(tags).txt)
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.addCallbackAndRun((pitchAligment) =>
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marker.setRotationAlignment(<Alignment>pitchAligment)
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)
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if (feature.geometry.type === "Point") {
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// When the tags get 'pinged', check that the location didn't change
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store.addCallbackAndRunD(() => {
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// Check if the location is still the same
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const oldLoc = marker.getLngLat()
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const newloc = (<Point>feature.geometry).coordinates
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if (newloc[0] === oldLoc.lng && newloc[1] === oldLoc.lat) {
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return
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}
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marker.setLngLat({ lon: newloc[0], lat: newloc[1] })
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})
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}
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return marker
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}
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}
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class LineRenderingLayer {
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/**
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* These are dynamic properties
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* @private
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*/
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private static readonly lineConfigKeys = [
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"color",
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"width",
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"lineCap",
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"offset",
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"fill",
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"fillColor",
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] as const
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private static readonly lineConfigKeysColor = ["color", "fillColor"] as const
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private static readonly lineConfigKeysNumber = ["width", "offset"] as const
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private static missingIdTriggered = false
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private readonly _map: MlMap
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private readonly _config: LineRenderingConfig
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private readonly _visibility?: Store<boolean>
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private readonly _fetchStore?: (id: string) => Store<Record<string, string>>
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private readonly _onClick?: (feature: Feature) => void
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private readonly _layername: string
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private readonly _listenerInstalledOn: Set<string> = new Set<string>()
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private currentSourceData
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constructor(
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map: MlMap,
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features: FeatureSource,
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layername: string,
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config: LineRenderingConfig,
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visibility?: Store<boolean>,
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fetchStore?: (id: string) => Store<Record<string, string>>,
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onClick?: (feature: Feature) => void
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) {
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this._layername = layername
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this._map = map
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this._config = config
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this._visibility = visibility
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this._fetchStore = fetchStore
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this._onClick = onClick
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features.features.addCallbackAndRunD(() => this.update(features.features))
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map.on("styledata", () => this.update(features.features))
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}
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public destruct(): void {
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this._map.removeLayer(this._layername + "_polygon")
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}
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private async addSymbolLayer(
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sourceId: string,
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imageAlongWay: { if?: TagsFilter; then: string }[]
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) {
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const map = this._map
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await Promise.allSettled(
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imageAlongWay.map(async (img, i) => {
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const imgId = img.then.replaceAll(/[/.-]/g, "_")
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if (map.getImage(imgId) === undefined) {
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const loadedImage = await map.loadImage(img.then)
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map.addImage(imgId, loadedImage.data)
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}
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const spec: AddLayerObject = {
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id: "symbol-layer_" + this._layername + "-" + i,
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type: "symbol",
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source: sourceId,
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layout: {
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"symbol-placement": "line",
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"symbol-spacing": 10,
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"icon-allow-overlap": true,
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"icon-rotation-alignment": "map",
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"icon-pitch-alignment": "map",
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"icon-image": imgId,
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"icon-size": 0.055,
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},
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}
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const filter = img.if?.asMapboxExpression()
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if (filter) {
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spec.filter = filter
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}
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map.addLayer(spec)
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})
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)
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}
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/**
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* Calculate the feature-state for maplibre
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* @param properties
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* @private
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*/
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private calculatePropsFor(
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properties: Record<string, string>
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): Partial<Record<(typeof LineRenderingLayer.lineConfigKeys)[number], string>> {
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const config = this._config
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const calculatedProps: Record<string, string | number> = {}
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for (const key of LineRenderingLayer.lineConfigKeys) {
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calculatedProps[key] = config[key]?.GetRenderValue(properties)?.Subs(properties).txt
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}
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calculatedProps.fillColor = calculatedProps.fillColor ?? calculatedProps.color
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for (const key of LineRenderingLayer.lineConfigKeysColor) {
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const v = <string>calculatedProps[key]
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if (v === undefined) {
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continue
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}
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if (v.length == 9 && v.startsWith("#")) {
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// This includes opacity
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calculatedProps[`${key}-opacity`] = parseInt(v.substring(7), 16) / 256
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calculatedProps[key] = v.substring(0, 7)
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}
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}
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calculatedProps["fillColor-opacity"] = calculatedProps["fillColor-opacity"] ?? 0.1
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for (const key of LineRenderingLayer.lineConfigKeysNumber) {
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calculatedProps[key] = Number(calculatedProps[key])
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}
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return calculatedProps
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}
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private async update(featureSource: Store<Feature[]>) {
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const map = this._map
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while (!map.isStyleLoaded()) {
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await Utils.waitFor(100)
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}
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// After waiting 'till the map has loaded, the data might have changed already
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// As such, we only now read the features from the featureSource and compare with the previously set data
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const features = featureSource.data
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if (features.length === 0) {
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// This is a very ugly workaround for https://source.mapcomplete.org/MapComplete/MapComplete/issues/2312,
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// but I couldn't find the root cause
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return
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}
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const src = <GeoJSONSource>map.getSource(this._layername)
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{
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// Add source to the map or update the feature source
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if (src === undefined) {
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this.currentSourceData = features
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map.addSource(this._layername, {
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type: "geojson",
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data: {
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type: "FeatureCollection",
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features,
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},
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promoteId: "id",
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})
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const linelayer = this._layername + "_line"
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const layer: AddLayerObject = {
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source: this._layername,
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id: linelayer,
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type: "line",
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paint: {
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"line-color": ["feature-state", "color"],
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"line-opacity": ["feature-state", "color-opacity"],
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"line-width": ["feature-state", "width"],
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"line-offset": ["feature-state", "offset"],
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},
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layout: {
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"line-cap": "round",
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},
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}
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if (this._config.dashArray) {
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try {
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layer.paint["line-dasharray"] =
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this._config.dashArray?.split(" ")?.map((s) => Number(s)) ?? null
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} catch (e) {
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console.error(
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`Invalid dasharray in layer ${this._layername}:`,
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this._config.dashArray
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)
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}
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}
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map.addLayer(layer)
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if (this._config.imageAlongWay) {
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this.addSymbolLayer(this._layername, this._config.imageAlongWay)
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}
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for (const feature of features) {
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if (!feature.properties.id) {
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console.warn("Feature without id:", feature)
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continue
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}
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map.setFeatureState(
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{ source: this._layername, id: feature.properties.id },
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this.calculatePropsFor(feature.properties)
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)
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}
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if (this._onClick) {
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map.on("click", linelayer, (e) => {
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// line-layer-listener
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e.originalEvent["consumed"] = true
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this._onClick(e.features[0])
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})
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}
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const polylayer = this._layername + "_polygon"
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map.addLayer({
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source: this._layername,
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id: polylayer,
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type: "fill",
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filter: ["in", ["geometry-type"], ["literal", ["Polygon", "MultiPolygon"]]],
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layout: {},
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paint: {
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"fill-color": ["feature-state", "fillColor"],
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"fill-opacity": ["feature-state", "fillColor-opacity"],
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},
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})
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if (this._onClick) {
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map.on("click", polylayer, (e) => {
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// polygon-layer-listener
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if (e.originalEvent["consumed"]) {
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// This is a polygon beneath a marker, we can ignore it
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return
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}
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e.originalEvent["consumed"] = true
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this._onClick(e.features[0])
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})
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}
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this._visibility?.addCallbackAndRunD((visible) => {
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try {
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map.setLayoutProperty(linelayer, "visibility", visible ? "visible" : "none")
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map.setLayoutProperty(polylayer, "visibility", visible ? "visible" : "none")
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} catch (e) {
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console.warn(
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"Error while setting visibility of layers ",
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linelayer,
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polylayer,
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e
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)
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}
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})
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} else {
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this.currentSourceData = features
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src.setData({
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type: "FeatureCollection",
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features: this.currentSourceData,
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})
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}
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}
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for (let i = 0; i < features.length; i++) {
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// Installs a listener on the 'Tags' of every individual feature to update the rendering
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const feature = features[i]
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const id = feature.properties.id ?? feature.id
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if (id === undefined) {
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if (!LineRenderingLayer.missingIdTriggered) {
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console.trace(
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"Got a feature without ID; this causes rendering bugs:",
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feature,
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"from"
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)
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LineRenderingLayer.missingIdTriggered = true
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}
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continue
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}
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if (this._listenerInstalledOn.has(id)) {
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continue
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}
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if (this._fetchStore === undefined) {
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map.setFeatureState(
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{ source: this._layername, id },
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this.calculatePropsFor(feature.properties)
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)
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} else {
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const tags = this._fetchStore(id)
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this._listenerInstalledOn.add(id)
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tags?.addCallbackAndRunD((properties) => {
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// Make sure to use 'getSource' here, the layer names are different!
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try {
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if (map.getSource(this._layername) === undefined) {
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return true
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}
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} catch (e) {
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console.debug("Could not fetch source for", this._layername)
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return
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}
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map.setFeatureState(
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{ source: this._layername, id },
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this.calculatePropsFor(properties)
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)
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})
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}
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}
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}
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}
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export default class ShowDataLayer {
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public static rangeLayer = new LayerConfig(
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<LayerConfigJson>range_layer,
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"ShowDataLayer.ts:range.json"
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)
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private readonly _options: ShowDataLayerOptions & {
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layer: LayerConfig
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drawMarkers?: true | boolean
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drawLines?: true | boolean
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}
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private onDestroy: (() => void)[] = []
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constructor(
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map: Store<MlMap>,
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options: ShowDataLayerOptions & {
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layer: LayerConfig
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drawMarkers?: true | boolean
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drawLines?: true | boolean
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}
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|
) {
|
|
this._options = options
|
|
this.onDestroy.push(map.addCallbackAndRunD((map) => this.initDrawFeatures(map)))
|
|
}
|
|
|
|
public static showMultipleLayers(
|
|
mlmap: UIEventSource<MlMap>,
|
|
features: FeatureSource,
|
|
layers: LayerConfig[],
|
|
options?: Partial<Omit<ShowDataLayerOptions, "features" | "layer">>
|
|
) {
|
|
const perLayer: PerLayerFeatureSourceSplitter<FeatureSourceForLayer> =
|
|
new PerLayerFeatureSourceSplitter(
|
|
layers.filter((l) => l.source !== null).map((l) => new FilteredLayer(l)),
|
|
features,
|
|
{
|
|
constructStore: (features, layer) => new SimpleFeatureSource(layer, features),
|
|
}
|
|
)
|
|
if (options?.zoomToFeatures) {
|
|
options.zoomToFeatures = false
|
|
features.features.addCallbackD((features) => {
|
|
ShowDataLayer.zoomToCurrentFeatures(mlmap.data, features)
|
|
})
|
|
mlmap.addCallbackD((map) => {
|
|
ShowDataLayer.zoomToCurrentFeatures(map, features.features.data)
|
|
})
|
|
}
|
|
|
|
perLayer.forEach((fs) => {
|
|
new ShowDataLayer(mlmap, {
|
|
layer: fs.layer.layerDef,
|
|
features: fs,
|
|
...(options ?? {}),
|
|
})
|
|
})
|
|
}
|
|
|
|
public static showRange(
|
|
map: Store<MlMap>,
|
|
features: FeatureSource,
|
|
doShowLayer?: Store<boolean>
|
|
): ShowDataLayer {
|
|
return new ShowDataLayer(map, {
|
|
layer: ShowDataLayer.rangeLayer,
|
|
features,
|
|
doShowLayer,
|
|
})
|
|
}
|
|
|
|
public destruct() {}
|
|
|
|
private static zoomToCurrentFeatures(map: MlMap, features: Feature[]) {
|
|
if (!features || !map || features.length == 0) {
|
|
return
|
|
}
|
|
const bbox = BBox.bboxAroundAll(features.map(BBox.get))
|
|
window.requestAnimationFrame(() => {
|
|
try {
|
|
map.resize()
|
|
} catch (e) {
|
|
console.error("Could not resize the map in preparation of zoomToCurrentFeatures; the error is:", e)
|
|
}
|
|
map.fitBounds(bbox.toLngLat(), {
|
|
padding: { top: 10, bottom: 10, left: 10, right: 10 },
|
|
animate: false,
|
|
})
|
|
})
|
|
}
|
|
|
|
private initDrawFeatures(map: MlMap) {
|
|
const { features, doShowLayer, fetchStore, selectedElement } = this._options
|
|
let onClick = this._options.onClick
|
|
if (!onClick && selectedElement) {
|
|
onClick =
|
|
this._options.layer.title === undefined
|
|
? undefined
|
|
: (feature: Feature) => {
|
|
selectedElement?.setData(feature)
|
|
}
|
|
}
|
|
if (this._options.drawLines !== false) {
|
|
for (let i = 0; i < this._options.layer.lineRendering.length; i++) {
|
|
const lineRenderingConfig = this._options.layer.lineRendering[i]
|
|
const l = new LineRenderingLayer(
|
|
map,
|
|
features,
|
|
"mapcomplete_" + this._options.layer.id + "_linerendering_" + i,
|
|
lineRenderingConfig,
|
|
doShowLayer,
|
|
fetchStore,
|
|
onClick
|
|
)
|
|
this.onDestroy.push(l.destruct)
|
|
}
|
|
}
|
|
if (this._options.drawMarkers !== false) {
|
|
for (const pointRenderingConfig of this._options.layer.mapRendering) {
|
|
new PointRenderingLayer(
|
|
map,
|
|
this._options.layer,
|
|
features,
|
|
pointRenderingConfig,
|
|
this._options.metaTags,
|
|
doShowLayer,
|
|
fetchStore,
|
|
onClick,
|
|
selectedElement
|
|
)
|
|
}
|
|
}
|
|
if (this._options.zoomToFeatures) {
|
|
features.features.addCallbackAndRunD((features) =>
|
|
ShowDataLayer.zoomToCurrentFeatures(map, features)
|
|
)
|
|
}
|
|
}
|
|
}
|