501 lines
18 KiB
TypeScript
501 lines
18 KiB
TypeScript
import UserRelatedState from "./UserRelatedState"
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import { Store, Stores, UIEventSource } from "../UIEventSource"
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import BaseLayer from "../../Models/BaseLayer"
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import LayoutConfig from "../../Models/ThemeConfig/LayoutConfig"
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import AvailableBaseLayers from "../Actors/AvailableBaseLayers"
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import Attribution from "../../UI/BigComponents/Attribution"
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import Minimap, { MinimapObj } from "../../UI/Base/Minimap"
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import { Tiles } from "../../Models/TileRange"
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import BaseUIElement from "../../UI/BaseUIElement"
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import FilteredLayer, { FilterState } from "../../Models/FilteredLayer"
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import TilesourceConfig from "../../Models/ThemeConfig/TilesourceConfig"
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import { QueryParameters } from "../Web/QueryParameters"
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import ShowOverlayLayer from "../../UI/ShowDataLayer/ShowOverlayLayer"
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import { FeatureSourceForLayer, Tiled } from "../FeatureSource/FeatureSource"
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import SimpleFeatureSource from "../FeatureSource/Sources/SimpleFeatureSource"
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import { LocalStorageSource } from "../Web/LocalStorageSource"
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import { GeoOperations } from "../GeoOperations"
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import TitleHandler from "../Actors/TitleHandler"
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import { BBox } from "../BBox"
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import LayerConfig from "../../Models/ThemeConfig/LayerConfig"
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import { TiledStaticFeatureSource } from "../FeatureSource/Sources/StaticFeatureSource"
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import { Translation, TypedTranslation } from "../../UI/i18n/Translation"
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import { Tag } from "../Tags/Tag"
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import { OsmConnection } from "../Osm/OsmConnection"
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export interface GlobalFilter {
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filter: FilterState
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id: string
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onNewPoint: {
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safetyCheck: Translation
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confirmAddNew: TypedTranslation<{ preset: Translation }>
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tags: Tag[]
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}
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}
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/**
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* Contains all the leaflet-map related state
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*/
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export default class MapState extends UserRelatedState {
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/**
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The leaflet instance of the big basemap
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*/
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public leafletMap = new UIEventSource<any /*L.Map*/>(undefined, "leafletmap")
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/**
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* A list of currently available background layers
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*/
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public availableBackgroundLayers: Store<BaseLayer[]>
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/**
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* The current background layer
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*/
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public backgroundLayer: UIEventSource<BaseLayer>
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/**
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* Last location where a click was registered
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*/
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public readonly LastClickLocation: UIEventSource<{
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lat: number
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lon: number
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}> = new UIEventSource<{ lat: number; lon: number }>(undefined)
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/**
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* The bounds of the current map view
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*/
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public currentView: FeatureSourceForLayer & Tiled
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/**
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* The location as delivered by the GPS
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*/
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public currentUserLocation: SimpleFeatureSource
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/**
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* All previously visited points
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*/
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public historicalUserLocations: SimpleFeatureSource
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/**
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* The number of seconds that the GPS-locations are stored in memory.
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* Time in seconds
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*/
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public gpsLocationHistoryRetentionTime = new UIEventSource(
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7 * 24 * 60 * 60,
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"gps_location_retention"
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)
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public historicalUserLocationsTrack: FeatureSourceForLayer & Tiled
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/**
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* A feature source containing the current home location of the user
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*/
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public homeLocation: FeatureSourceForLayer & Tiled
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public readonly mainMapObject: BaseUIElement & MinimapObj
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/**
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* Which layers are enabled in the current theme and what filters are applied onto them
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*/
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public filteredLayers: UIEventSource<FilteredLayer[]> = new UIEventSource<FilteredLayer[]>(
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[],
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"filteredLayers"
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)
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/**
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* Filters which apply onto all layers
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*/
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public globalFilters: UIEventSource<GlobalFilter[]> = new UIEventSource([], "globalFilters")
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/**
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* Which overlays are shown
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*/
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public overlayToggles: { config: TilesourceConfig; isDisplayed: UIEventSource<boolean> }[]
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constructor(layoutToUse: LayoutConfig, options?: { attemptLogin: true | boolean }) {
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super(layoutToUse, options)
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this.availableBackgroundLayers = AvailableBaseLayers.AvailableLayersAt(this.locationControl)
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let defaultLayer = AvailableBaseLayers.osmCarto
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const available = this.availableBackgroundLayers.data
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for (const layer of available) {
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if (this.backgroundLayerId.data === layer.id) {
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defaultLayer = layer
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}
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}
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const self = this
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this.backgroundLayer = new UIEventSource<BaseLayer>(defaultLayer)
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this.backgroundLayer.addCallbackAndRunD((layer) => self.backgroundLayerId.setData(layer.id))
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const attr = new Attribution(
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this.locationControl,
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this.osmConnection.userDetails,
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this.layoutToUse,
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this.currentBounds
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)
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// Will write into this.leafletMap
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this.mainMapObject = Minimap.createMiniMap({
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background: this.backgroundLayer,
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location: this.locationControl,
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leafletMap: this.leafletMap,
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bounds: this.currentBounds,
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attribution: attr,
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lastClickLocation: this.LastClickLocation,
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})
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this.overlayToggles =
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this.layoutToUse?.tileLayerSources
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?.filter((c) => c.name !== undefined)
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?.map((c) => ({
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config: c,
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isDisplayed: QueryParameters.GetBooleanQueryParameter(
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"overlay-" + c.id,
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c.defaultState,
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"Wether or not the overlay " + c.id + " is shown"
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),
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})) ?? []
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this.filteredLayers = new UIEventSource<FilteredLayer[]>(
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MapState.InitializeFilteredLayers(this.layoutToUse, this.osmConnection)
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)
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this.lockBounds()
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this.AddAllOverlaysToMap(this.leafletMap)
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this.initHomeLocation()
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this.initGpsLocation()
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this.initUserLocationTrail()
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this.initCurrentView()
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new TitleHandler(this)
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}
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public AddAllOverlaysToMap(leafletMap: UIEventSource<any>) {
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const initialized = new Set()
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for (const overlayToggle of this.overlayToggles) {
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new ShowOverlayLayer(overlayToggle.config, leafletMap, overlayToggle.isDisplayed)
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initialized.add(overlayToggle.config)
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}
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for (const tileLayerSource of this.layoutToUse?.tileLayerSources ?? []) {
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if (initialized.has(tileLayerSource)) {
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continue
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}
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new ShowOverlayLayer(tileLayerSource, leafletMap)
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}
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}
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private lockBounds() {
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const layout = this.layoutToUse
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if (!layout?.lockLocation) {
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return
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}
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console.warn("Locking the bounds to ", layout.lockLocation)
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this.mainMapObject.installBounds(
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new BBox(layout.lockLocation),
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this.featureSwitchIsTesting.data
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)
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}
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private initCurrentView() {
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let currentViewLayer: FilteredLayer = this.filteredLayers.data.filter(
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(l) => l.layerDef.id === "current_view"
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)[0]
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if (currentViewLayer === undefined) {
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// This layer is not needed by the theme and thus unloaded
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return
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}
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let i = 0
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const self = this
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const features: Store<{ feature: any; freshness: Date }[]> = this.currentBounds.map(
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(bounds) => {
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if (bounds === undefined) {
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return []
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}
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i++
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const feature = {
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freshness: new Date(),
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feature: {
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type: "Feature",
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properties: {
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id: "current_view-" + i,
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current_view: "yes",
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zoom: "" + self.locationControl.data.zoom,
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},
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geometry: {
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type: "Polygon",
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coordinates: [
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[
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[bounds.maxLon, bounds.maxLat],
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[bounds.minLon, bounds.maxLat],
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[bounds.minLon, bounds.minLat],
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[bounds.maxLon, bounds.minLat],
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[bounds.maxLon, bounds.maxLat],
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],
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],
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},
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},
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}
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return [feature]
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}
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)
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this.currentView = new TiledStaticFeatureSource(features, currentViewLayer)
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}
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private initGpsLocation() {
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// Initialize the gps layer data. This is emtpy for now, the actual writing happens in the Geolocationhandler
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let gpsLayerDef: FilteredLayer = this.filteredLayers.data.filter(
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(l) => l.layerDef.id === "gps_location"
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)[0]
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if (gpsLayerDef === undefined) {
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return
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}
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this.currentUserLocation = new SimpleFeatureSource(gpsLayerDef, Tiles.tile_index(0, 0, 0))
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}
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private initUserLocationTrail() {
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const features = LocalStorageSource.GetParsed<{ feature: any; freshness: Date }[]>(
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"gps_location_history",
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[]
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)
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const now = new Date().getTime()
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features.data = features.data
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.map((ff) => ({ feature: ff.feature, freshness: new Date(ff.freshness) }))
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.filter(
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(ff) =>
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now - ff.freshness.getTime() < 1000 * this.gpsLocationHistoryRetentionTime.data
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)
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features.ping()
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const self = this
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let i = 0
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this.currentUserLocation?.features?.addCallbackAndRunD(([location]) => {
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if (location === undefined) {
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return
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}
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const previousLocation = features.data[features.data.length - 1]
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if (previousLocation !== undefined) {
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const d = GeoOperations.distanceBetween(
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previousLocation.feature.geometry.coordinates,
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location.feature.geometry.coordinates
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)
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let timeDiff = Number.MAX_VALUE // in seconds
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const olderLocation = features.data[features.data.length - 2]
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if (olderLocation !== undefined) {
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timeDiff =
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(new Date(previousLocation.freshness).getTime() -
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new Date(olderLocation.freshness).getTime()) /
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1000
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}
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if (d < 20 && timeDiff < 60) {
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// Do not append changes less then 20m - it's probably noise anyway
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return
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}
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}
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const feature = JSON.parse(JSON.stringify(location.feature))
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feature.properties.id = "gps/" + features.data.length
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i++
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features.data.push({ feature, freshness: new Date() })
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features.ping()
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})
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let gpsLayerDef: FilteredLayer = this.filteredLayers.data.filter(
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(l) => l.layerDef.id === "gps_location_history"
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)[0]
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if (gpsLayerDef !== undefined) {
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this.historicalUserLocations = new SimpleFeatureSource(
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gpsLayerDef,
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Tiles.tile_index(0, 0, 0),
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features
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)
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this.changes.setHistoricalUserLocations(this.historicalUserLocations)
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}
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const asLine = features.map((allPoints) => {
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if (allPoints === undefined || allPoints.length < 2) {
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return []
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}
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const feature = {
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type: "Feature",
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properties: {
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id: "location_track",
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"_date:now": new Date().toISOString(),
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},
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geometry: {
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type: "LineString",
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coordinates: allPoints.map((ff) => ff.feature.geometry.coordinates),
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},
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}
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self.allElements.ContainingFeatures.set(feature.properties.id, feature)
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return [
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{
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feature,
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freshness: new Date(),
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},
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]
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})
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let gpsLineLayerDef: FilteredLayer = this.filteredLayers.data.filter(
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(l) => l.layerDef.id === "gps_track"
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)[0]
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if (gpsLineLayerDef !== undefined) {
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this.historicalUserLocationsTrack = new TiledStaticFeatureSource(
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asLine,
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gpsLineLayerDef
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)
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}
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}
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private initHomeLocation() {
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const empty = []
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const feature = Stores.ListStabilized(
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this.osmConnection.userDetails.map((userDetails) => {
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if (userDetails === undefined) {
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return undefined
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}
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const home = userDetails.home
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if (home === undefined) {
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return undefined
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}
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return [home.lon, home.lat]
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})
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).map((homeLonLat) => {
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if (homeLonLat === undefined) {
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return empty
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}
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return [
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{
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feature: {
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type: "Feature",
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properties: {
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id: "home",
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"user:home": "yes",
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_lon: homeLonLat[0],
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_lat: homeLonLat[1],
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},
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geometry: {
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type: "Point",
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coordinates: homeLonLat,
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},
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},
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freshness: new Date(),
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},
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]
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})
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const flayer = this.filteredLayers.data.filter((l) => l.layerDef.id === "home_location")[0]
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if (flayer !== undefined) {
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this.homeLocation = new TiledStaticFeatureSource(feature, flayer)
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}
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}
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private static getPref(
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osmConnection: OsmConnection,
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key: string,
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layer: LayerConfig
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): UIEventSource<boolean> {
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return osmConnection.GetPreference(key, layer.shownByDefault + "").sync(
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(v) => {
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if (v === undefined) {
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return undefined
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}
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return v === "true"
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},
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[],
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(b) => {
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if (b === undefined) {
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return undefined
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}
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return "" + b
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}
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)
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}
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public static InitializeFilteredLayers(
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layoutToUse: { layers: LayerConfig[]; id: string },
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osmConnection: OsmConnection
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): FilteredLayer[] {
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if (layoutToUse === undefined) {
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return []
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}
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const flayers: FilteredLayer[] = []
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for (const layer of layoutToUse.layers) {
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let isDisplayed: UIEventSource<boolean>
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if (layer.syncSelection === "local") {
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isDisplayed = LocalStorageSource.GetParsed(
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layoutToUse.id + "-layer-" + layer.id + "-enabled",
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layer.shownByDefault
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)
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} else if (layer.syncSelection === "theme-only") {
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isDisplayed = MapState.getPref(
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osmConnection,
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layoutToUse.id + "-layer-" + layer.id + "-enabled",
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layer
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)
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} else if (layer.syncSelection === "global") {
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isDisplayed = MapState.getPref(
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osmConnection,
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"layer-" + layer.id + "-enabled",
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layer
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)
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} else {
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isDisplayed = QueryParameters.GetBooleanQueryParameter(
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"layer-" + layer.id,
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layer.shownByDefault,
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"Wether or not layer " + layer.id + " is shown"
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)
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}
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const flayer: FilteredLayer = {
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isDisplayed,
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layerDef: layer,
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appliedFilters: new UIEventSource<Map<string, FilterState>>(
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new Map<string, FilterState>()
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),
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}
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layer.filters.forEach((filterConfig) => {
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const stateSrc = filterConfig.initState()
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stateSrc.addCallbackAndRun((state) =>
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flayer.appliedFilters.data.set(filterConfig.id, state)
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)
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flayer.appliedFilters
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.map((dict) => dict.get(filterConfig.id))
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.addCallback((state) => stateSrc.setData(state))
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})
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flayers.push(flayer)
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}
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for (const layer of layoutToUse.layers) {
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if (layer.filterIsSameAs === undefined) {
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continue
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}
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const toReuse = flayers.find((l) => l.layerDef.id === layer.filterIsSameAs)
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if (toReuse === undefined) {
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throw (
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"Error in layer " +
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layer.id +
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": it defines that it should be use the filters of " +
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layer.filterIsSameAs +
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", but this layer was not loaded"
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)
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}
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console.warn(
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"Linking filter and isDisplayed-states of " +
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layer.id +
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" and " +
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layer.filterIsSameAs
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)
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const selfLayer = flayers.findIndex((l) => l.layerDef.id === layer.id)
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flayers[selfLayer] = {
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isDisplayed: toReuse.isDisplayed,
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layerDef: layer,
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appliedFilters: toReuse.appliedFilters,
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}
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}
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return flayers
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}
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}
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