forked from MapComplete/MapComplete
433 lines
16 KiB
TypeScript
433 lines
16 KiB
TypeScript
import { ImmutableStore, Store, UIEventSource } from "../../Logic/UIEventSource"
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import type { 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 } 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 ScrollableFullScreen from "../Base/ScrollableFullScreen"
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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 { LayerConfigJson } from "../../Models/ThemeConfig/Json/LayerConfigJson"
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import PerLayerFeatureSourceSplitter from "../../Logic/FeatureSource/PerLayerFeatureSourceSplitter"
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import FilteredLayer from "../../Models/FilteredLayer"
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import StaticFeatureSource from "../../Logic/FeatureSource/Sources/StaticFeatureSource"
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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 _dirty = false
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constructor(
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map: MlMap,
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features: FeatureSource,
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config: PointRenderingConfig,
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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._visibility = visibility
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this._config = config
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this._map = map
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this._fetchStore = fetchStore
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this._onClick = onClick
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const self = this
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features.features.addCallbackAndRunD((features) => self.updateFeatures(features))
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visibility?.addCallbackAndRunD((visible) => {
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if (visible === true && self._dirty) {
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self.updateFeatures(features.features.data)
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}
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self.setVisibility(visible)
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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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const loc = GeoOperations.featureToCoordinateWithRenderingType(
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<any>feature,
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location
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)
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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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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, true)
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html.SetClass("marker cursor-pointer")
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const el = html.ConstructElement()
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if (this._onClick) {
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const self = this
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el.addEventListener("click", function (ev) {
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self._onClick(feature)
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ev.preventDefault()
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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(el).setLngLat(loc).setOffset(iconAnchor).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) => marker.setPitchAlignment(pitchAligment))
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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) => marker.setRotationAlignment(pitchAligment))
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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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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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const self = this
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features.features.addCallbackAndRunD((features) => self.update(features))
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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 calculatedProps = {}
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const config = this._config
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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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for (const key of LineRenderingLayer.lineConfigKeysColor) {
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let v = config[key]?.GetRenderValue(properties)?.Subs(properties).txt
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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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v = v.substring(0, 7)
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}
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calculatedProps[key] = v
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}
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for (const key of LineRenderingLayer.lineConfigKeysNumber) {
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const v = config[key]?.GetRenderValue(properties)?.Subs(properties).txt
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calculatedProps[key] = Number(v)
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}
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return calculatedProps
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}
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private async update(features: 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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const src = <GeoJSONSource>map.getSource(this._layername)
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if (src === undefined) {
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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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// @ts-ignore
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const linelayer = this._layername + "_line"
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map.addLayer({
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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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map.on("click", linelayer, (e) => {
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console.log("Click", e)
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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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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": 0.1,
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},
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})
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map.on("click", polylayer, (e) => {
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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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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 visiblity 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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src.setData({
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type: "FeatureCollection",
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features,
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})
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}
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for (let i = 0; i < features.length; i++) {
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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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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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private 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 _map: Store<MlMap>
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private readonly _options: ShowDataLayerOptions & { layer: LayerConfig }
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private readonly _popupCache: Map<string, ScrollableFullScreen>
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constructor(map: Store<MlMap>, options: ShowDataLayerOptions & { layer: LayerConfig }) {
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this._map = map
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this._options = options
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this._popupCache = new Map()
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const self = this
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map.addCallbackAndRunD((map) => self.initDrawFeatures(map))
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}
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public static showMultipleLayers(
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mlmap: UIEventSource<MlMap>,
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features: FeatureSource,
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layers: LayerConfig[],
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options?: Partial<ShowDataLayerOptions>
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) {
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const perLayer = new PerLayerFeatureSourceSplitter(
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layers.filter((l) => l.source !== null).map((l) => new FilteredLayer(l)),
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new StaticFeatureSource(features)
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)
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perLayer.forEach((fs) => {
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new ShowDataLayer(mlmap, {
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layer: fs.layer.layerDef,
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features: fs,
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...(options ?? {}),
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})
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})
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}
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public static showRange(
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map: Store<MlMap>,
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features: FeatureSource,
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doShowLayer?: Store<boolean>
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): ShowDataLayer {
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return new ShowDataLayer(map, {
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layer: ShowDataLayer.rangeLayer,
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features,
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doShowLayer,
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})
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}
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private zoomToCurrentFeatures(map: MlMap) {
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if (this._options.zoomToFeatures) {
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const features = this._options.features.features.data
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const bbox = BBox.bboxAroundAll(features.map(BBox.get))
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map.fitBounds(bbox.toLngLat(), {
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padding: { top: 10, bottom: 10, left: 10, right: 10 },
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})
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}
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}
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private initDrawFeatures(map: MlMap) {
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let { features, doShowLayer, fetchStore, selectedElement, selectedLayer } = this._options
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const onClick =
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this._options.onClick ??
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((feature: Feature) => {
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selectedElement?.setData(feature)
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selectedLayer?.setData(this._options.layer)
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})
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for (let i = 0; i < this._options.layer.lineRendering.length; i++) {
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const lineRenderingConfig = this._options.layer.lineRendering[i]
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new LineRenderingLayer(
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map,
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features,
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this._options.layer.id + "_linerendering_" + i,
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lineRenderingConfig,
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doShowLayer,
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fetchStore,
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onClick
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)
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}
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for (const pointRenderingConfig of this._options.layer.mapRendering) {
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new PointRenderingLayer(
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map,
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features,
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pointRenderingConfig,
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doShowLayer,
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fetchStore,
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onClick
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)
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}
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features.features.addCallbackAndRunD((_) => this.zoomToCurrentFeatures(map))
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}
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}
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