forked from MapComplete/MapComplete
		
	
		
			
				
	
	
		
			294 lines
		
	
	
	
		
			12 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			294 lines
		
	
	
	
		
			12 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
| import {UIElement} from "./UI/UIElement";
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| import {Layout} from "./Customizations/Layout";
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| import {Utils} from "./Utils";
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| import {Preset} from "./Customizations/LayerDefinition";
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| import {ElementStorage} from "./Logic/ElementStorage";
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| import {Changes} from "./Logic/Osm/Changes";
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| import {OsmConnection} from "./Logic/Osm/OsmConnection";
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| import Locale from "./UI/i18n/Locale";
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| import Translations from "./UI/i18n/Translations";
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| import {FilteredLayer} from "./Logic/FilteredLayer";
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| import {UpdateFromOverpass} from "./Logic/UpdateFromOverpass";
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| import {UIEventSource} from "./Logic/UIEventSource";
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| import {LocalStorageSource} from "./Logic/Web/LocalStorageSource";
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| import {QueryParameters} from "./Logic/Web/QueryParameters";
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| import {BaseLayer} from "./Logic/BaseLayer";
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| 
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| /**
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|  * Contains the global state: a bunch of UI-event sources
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|  */
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| 
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| export default class State {
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| 
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|     // The singleton of the global state
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|     public static state: State;
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|     
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|     public static vNumber = "0.1.1b";
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|     
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|     // The user journey states thresholds when a new feature gets unlocked
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|     public static userJourney = {
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|         addNewPointsUnlock: 0,
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|         moreScreenUnlock: 5,
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|         personalLayoutUnlock: 20,
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|         tagsVisibleAt: 100,
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|         mapCompleteHelpUnlock: 200,
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|         tagsVisibleAndWikiLinked: 150,
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|         themeGeneratorReadOnlyUnlock: 200,
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|         themeGeneratorFullUnlock: 500, 
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|         addNewPointWithUnreadMessagesUnlock: 500,
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|         minZoomLevelToAddNewPoints: (Utils.isRetina() ? 18 : 19)
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|     };
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| 
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|     public static runningFromConsole: boolean = false; 
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| 
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|     public readonly layoutToUse = new UIEventSource<Layout>(undefined);
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| 
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|     /**
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|      The mapping from id -> UIEventSource<properties>
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|      */
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|     public allElements: ElementStorage;
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|     /**
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|      THe change handler
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|      */
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|     public changes: Changes;
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|     /**
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|      THe basemap with leaflet instance
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|      */
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|     public bm;
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|     /**
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|      * Background layer id
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|      */
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|     public availableBackgroundLayers: UIEventSource<BaseLayer[]>;
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|     /**
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|      The user credentials
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|      */
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|     public osmConnection: OsmConnection;
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| 
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|     public favouriteLayers: UIEventSource<string[]>;
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| 
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|     public layerUpdater: UpdateFromOverpass;
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| 
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| 
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|     public filteredLayers: UIEventSource<FilteredLayer[]> = new UIEventSource<FilteredLayer[]>([])
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|     public presets: UIEventSource<Preset[]> = new UIEventSource<Preset[]>([])
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|     
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|     /**
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|      *  The message that should be shown at the center of the screen
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|      */
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|     public readonly centerMessage = new UIEventSource<string>("");
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|     /**
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|      This message is shown full screen on mobile devices
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|      */
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|     public readonly fullScreenMessage = new UIEventSource<UIElement>(undefined);
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| 
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|     /**
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|      The latest element that was selected - used to generate the right UI at the right place
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|      */
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|     public readonly selectedElement = new UIEventSource<{ feature: any }>(undefined);
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| 
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|     public readonly zoom: UIEventSource<number>;
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|     public readonly lat: UIEventSource<number>;
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|     public readonly lon: UIEventSource<number>;
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| 
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| 
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|     public readonly featureSwitchUserbadge: UIEventSource<boolean>;
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|     public readonly featureSwitchSearch: UIEventSource<boolean>;
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|     public readonly featureSwitchLayers: UIEventSource<boolean>;
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|     public readonly featureSwitchAddNew: UIEventSource<boolean>;
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|     public readonly featureSwitchWelcomeMessage: UIEventSource<boolean>;
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|     public readonly featureSwitchIframe: UIEventSource<boolean>;
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|     public readonly featureSwitchMoreQuests: UIEventSource<boolean>;
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|     public readonly featureSwitchShareScreen: UIEventSource<boolean>;
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|     public readonly featureSwitchGeolocation: UIEventSource<boolean>;
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| 
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| 
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|     /**
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|      * The map location: currently centered lat, lon and zoom
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|      */
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|     public readonly locationControl = new UIEventSource<{ lat: number, lon: number, zoom: number }>(undefined);
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| 
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|     /**
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|      * The location as delivered by the GPS
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|      */
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|     public currentGPSLocation: UIEventSource<{
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|         latlng: {lat:number, lon:number},
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|         accuracy: number
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|     }> = new UIEventSource<{ latlng: {lat:number, lon:number}, accuracy: number }>(undefined);
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|     public layoutDefinition: string;
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|     public installedThemes: UIEventSource<{ layout: Layout; definition: string }[]>;
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| 
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|     public layerControlIsOpened: UIEventSource<boolean> = QueryParameters.GetQueryParameter("layer-control-toggle", "false")
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|         .map<boolean>((str) => str !== "false", [], b => "" + b)
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| 
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|     public welcomeMessageOpenedTab = QueryParameters.GetQueryParameter("tab", "0").map<number>(
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|         str => isNaN(Number(str)) ? 0 : Number(str), [], n => "" + n
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|     );
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| 
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|     constructor(layoutToUse: Layout) {
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|         const self = this;
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|         this.layoutToUse.setData(layoutToUse);
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| 
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|         function asFloat(source: UIEventSource<string>): UIEventSource<number> {
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|             return source.map(str => {
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|                 let parsed = parseFloat(str);
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|                 return isNaN(parsed) ? undefined : parsed;
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|             }, [], fl => {
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|                 if (fl === undefined || isNaN(fl)) {
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|                     return undefined;
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|                 }
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|                 return ("" + fl).substr(0, 8);
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|             })
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|         }
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|         this.zoom = asFloat(
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|             QueryParameters.GetQueryParameter("z", "" + layoutToUse.startzoom)
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|             .syncWith(LocalStorageSource.Get("zoom")));
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|         this.lat = asFloat(QueryParameters.GetQueryParameter("lat", "" + layoutToUse.startLat)
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|             .syncWith(LocalStorageSource.Get("lat")));
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|         this.lon = asFloat(QueryParameters.GetQueryParameter("lon", "" + layoutToUse.startLon)
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|             .syncWith(LocalStorageSource.Get("lon")));
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| 
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| 
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|         this.locationControl = new UIEventSource<{ lat: number, lon: number, zoom: number }>({
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|             zoom: Utils.asFloat(this.zoom.data),
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|             lat: Utils.asFloat(this.lat.data),
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|             lon: Utils.asFloat(this.lon.data),
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|         }).addCallback((latlonz) => {
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|             this.zoom.setData(latlonz.zoom);
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|             this.lat.setData(latlonz.lat);
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|             this.lon.setData(latlonz.lon);
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|         });
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| 
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|         this.layoutToUse.addCallback(layoutToUse => {
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|             const lcd = self.locationControl.data;
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|             lcd.zoom = lcd.zoom ?? layoutToUse?.startzoom;
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|             lcd.lat = lcd.lat ?? layoutToUse?.startLat;
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|             lcd.lon = lcd.lon ?? layoutToUse?.startLon;
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|             self.locationControl.ping();
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|         });
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| 
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| 
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|         function featSw(key: string, deflt: (layout: Layout) => boolean): UIEventSource<boolean> {
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|             const queryParameterSource = QueryParameters.GetQueryParameter(key, undefined);
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|             // I'm so sorry about someone trying to decipher this
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| 
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|             // It takes the current layout, extracts the default value for this query paramter. A query parameter event source is then retreived and flattened
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|             return UIEventSource.flatten(
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|                 self.layoutToUse.map((layout) => {
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|                     const defaultValue = deflt(layout);
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|                     const queryParam = QueryParameters.GetQueryParameter(key, "" + defaultValue)
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|                     return queryParam.map((str) => str === undefined ? defaultValue : (str !== "false"));
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|                 }), [queryParameterSource]);
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|         }
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| 
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| 
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|         this.featureSwitchUserbadge = featSw("fs-userbadge", (layoutToUse) => layoutToUse?.enableUserBadge ?? true);
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|         this.featureSwitchSearch = featSw("fs-search", (layoutToUse) => layoutToUse?.enableSearch ?? true);
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|         this.featureSwitchLayers = featSw("fs-layers", (layoutToUse) => layoutToUse?.enableLayers ?? true);
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|         this.featureSwitchAddNew = featSw("fs-add-new", (layoutToUse) => layoutToUse?.enableAdd ?? true);
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|         this.featureSwitchWelcomeMessage = featSw("fs-welcome-message", () => true);
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|         this.featureSwitchIframe = featSw("fs-iframe", () => false);
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|         this.featureSwitchMoreQuests = featSw("fs-more-quests", (layoutToUse) => layoutToUse?.enableMoreQuests ?? true);
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|         this.featureSwitchShareScreen = featSw("fs-share-screen", (layoutToUse) => layoutToUse?.enableShareScreen ?? true);
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|         this.featureSwitchGeolocation = featSw("fs-geolocation", (layoutToUse) => layoutToUse?.enableGeolocation ?? true);
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| 
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|         const testParam = QueryParameters.GetQueryParameter("test", "false").data;
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|         this.osmConnection = new OsmConnection(
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|             testParam === "true",
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|             QueryParameters.GetQueryParameter("oauth_token", undefined),
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|             layoutToUse.id,
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|             true
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|         );
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| 
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| 
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|         this.installedThemes = this.osmConnection.preferencesHandler.preferences.map<{ layout: Layout, definition: string }[]>(allPreferences => {
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|             const installedThemes: { layout: Layout, definition: string }[] = [];
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|             if (allPreferences === undefined) {
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|                 return installedThemes;
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|             }
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|             const invalidThemes = []
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|             for (const allPreferencesKey in allPreferences) {
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|                 const themename = allPreferencesKey.match(/^mapcomplete-installed-theme-(.*)-combined-length$/);
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|                 if (themename && themename[1] !== "") {
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|                     const customLayout = self.osmConnection.GetLongPreference("installed-theme-" + themename[1]);
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|                     if(customLayout.data === undefined){
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|                         console.log("No data defined for ", themename[1]);
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|                         continue;
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|                     }
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|                     try {
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|                         const layout = State.FromBase64(customLayout.data);
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|                         if(layout.id === undefined){
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|                             // This is an old style theme
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|                             // We remove it
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|                             customLayout.setData(undefined);
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|                             continue;
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|                         }
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|                         installedThemes.push({
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|                             layout: layout,
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|                             definition: customLayout.data
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|                         });
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|                     } catch (e) {
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|                         console.warn("Could not parse custom layout from preferences - deleting: ", allPreferencesKey, e, customLayout.data);
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|                         invalidThemes.push(themename[1])
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|                     }
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|                 }
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|             }
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| 
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|             for (const invalid of invalidThemes) {
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|                 console.error("Attempting to remove ", invalid)
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|                 this.osmConnection.GetLongPreference(
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|                     "installed-theme-" + invalid
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|                 ).setData(null);
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|             }
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| 
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|             return installedThemes;
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| 
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|         });
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| 
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| 
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|         // IMportant: the favourite layers are initiliazed _after_ the installed themes, as these might contain an installedTheme
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|         this.favouriteLayers = this.osmConnection.GetLongPreference("favouriteLayers").map(
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|             str => Utils.Dedup(str?.split(";")) ?? [],
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|             [], layers => Utils.Dedup(layers)?.join(";")
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|         );
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| 
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|         Locale.language.syncWith(this.osmConnection.GetPreference("language"));
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| 
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| 
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|         Locale.language.addCallback((currentLanguage) => {
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|             const layoutToUse = self.layoutToUse.data;
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|             if (layoutToUse === undefined) {
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|                 return;
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|             }
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|             if (this.layoutToUse.data.supportedLanguages.indexOf(currentLanguage) < 0) {
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|                 console.log("Resetting language to", layoutToUse.supportedLanguages[0], "as", currentLanguage, " is unsupported")
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|                 // The current language is not supported -> switch to a supported one
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|                 Locale.language.setData(layoutToUse.supportedLanguages[0]);
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|             }
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|         }).ping()
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| 
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|         this.layoutToUse.map((layoutToUse) => {
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|                 return Translations.WT(layoutToUse?.title)?.txt ?? "MapComplete"
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|             }, [Locale.language]
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|         ).addCallbackAndRun((title) => {
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|             document.title = title
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|         });
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| 
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| 
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|         this.allElements = new ElementStorage();
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|         this.changes = new Changes();
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| 
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|         if (State.runningFromConsole) {
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|             console.warn("running from console - not initializing map. Assuming test.html");
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|             return;
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|         }
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| 
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| 
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|         if (document.getElementById("leafletDiv") === null) {
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|             console.warn("leafletDiv not found - not initializing map. Assuming test.html");
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|             return;
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|         }
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| 
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|     }
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| 
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|     public static FromBase64 : (data: string) => Layout = undefined;
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| }
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