mapcomplete/State.ts
2020-08-08 21:17:17 +02:00

211 lines
8.3 KiB
TypeScript

import {UIEventSource} from "./UI/UIEventSource";
import {UIElement} from "./UI/UIElement";
import {QueryParameters} from "./Logic/QueryParameters";
import {LocalStorageSource} from "./Logic/LocalStorageSource";
import {Layout} from "./Customizations/Layout";
import {Utils} from "./Utils";
import {LayerDefinition, Preset} from "./Customizations/LayerDefinition";
import {ElementStorage} from "./Logic/ElementStorage";
import {Changes} from "./Logic/Osm/Changes";
import {OsmConnection} from "./Logic/Osm/OsmConnection";
import Locale from "./UI/i18n/Locale";
import {VariableUiElement} from "./UI/Base/VariableUIElement";
import Translations from "./UI/i18n/Translations";
import {CustomLayersState} from "./Logic/CustomLayersState";
import {FilteredLayer} from "./Logic/FilteredLayer";
import {LayerUpdater} from "./Logic/LayerUpdater";
/**
* Contains the global state: a bunch of UI-event sources
*/
export class State {
// The singleton of the global state
public static state: State;
public static vNumber = "0.0.4";
public static runningFromConsole: boolean = false;
/**
THe layout to use
*/
public readonly layoutToUse = new UIEventSource<Layout>(undefined);
public layoutDefinition : string;
/**
The mapping from id -> UIEventSource<properties>
*/
public allElements: ElementStorage;
/**
THe change handler
*/
public changes: Changes;
/**
THe basemap with leaflet instance
*/
public bm;
/**
The user crednetials
*/
public osmConnection: OsmConnection;
public layerUpdater : LayerUpdater;
public filteredLayers: UIEventSource<FilteredLayer[]> = new UIEventSource<FilteredLayer[]>([])
public presets: UIEventSource<Preset[]> = new UIEventSource<Preset[]>([])
/**
* The message that should be shown at the center of the screen
*/
public readonly centerMessage = new UIEventSource<string>("");
/**
* The countdown: if set to e.g. ten, it'll start counting down. When reaching zero, changes will be saved. NB: this is implemented later, not in the eventSource
*/
public readonly secondsTillChangesAreSaved = new UIEventSource<number>(0);
/**
This message is shown full screen on mobile devices
*/
public readonly fullScreenMessage = new UIEventSource<UIElement>(undefined);
/**
The latest element that was selected - used to generate the right UI at the right place
*/
public readonly selectedElement = new UIEventSource<{ feature: any }>(undefined);
public readonly zoom = QueryParameters.GetQueryParameter("z", undefined)
.syncWith(LocalStorageSource.Get("zoom"));
public readonly lat = QueryParameters.GetQueryParameter("lat", undefined)
.syncWith(LocalStorageSource.Get("lat"));
public readonly lon = QueryParameters.GetQueryParameter("lon", undefined)
.syncWith(LocalStorageSource.Get("lon"));
public readonly featureSwitchUserbadge: UIEventSource<boolean>;
public readonly featureSwitchSearch: UIEventSource<boolean>;
public readonly featureSwitchLayers: UIEventSource<boolean>;
public readonly featureSwitchAddNew: UIEventSource<boolean>;
public readonly featureSwitchWelcomeMessage: UIEventSource<boolean>;
public readonly featureSwitchIframe: UIEventSource<boolean>;
public readonly featureSwitchMoreQuests: UIEventSource<boolean>;
public readonly featureSwitchShareScreen: UIEventSource<boolean>;
public readonly featureSwitchGeolocation: UIEventSource<boolean>;
/**
* The map location: currently centered lat, lon and zoom
*/
public readonly locationControl = new UIEventSource<{ lat: number, lon: number, zoom: number }>(undefined);
/**
* The location as delivered by the GPS
*/
public currentGPSLocation: UIEventSource<{
latlng: number,
accuracy: number
}> = new UIEventSource<{ latlng: number, accuracy: number }>(undefined);
/** After this many milliseconds without changes, saves are sent of to OSM
*/
public readonly saveTimeout = new UIEventSource<number>(30 * 1000);
/**
* Layers can be marked as favourites, they show up in a custom layout
*/
public favourteLayers: UIEventSource<string[]> = new UIEventSource<string[]>([])
constructor(layoutToUse: Layout) {
this.layoutToUse = new UIEventSource<Layout>(layoutToUse);
this.locationControl = new UIEventSource<{ lat: number, lon: number, zoom: number }>({
zoom: Utils.asFloat(this.zoom.data) ?? layoutToUse.startzoom,
lat: Utils.asFloat(this.lat.data) ?? layoutToUse.startLat,
lon: Utils.asFloat(this.lon.data) ?? layoutToUse.startLon
}).addCallback((latlonz) => {
this.zoom.setData(latlonz.zoom.toString());
this.lat.setData(latlonz.lat.toString().substr(0, 6));
this.lon.setData(latlonz.lon.toString().substr(0, 6));
})
const self = this;
function featSw(key: string, deflt: (layout: Layout) => boolean): UIEventSource<boolean> {
const queryParameterSource = QueryParameters.GetQueryParameter(key, undefined);
// I'm so sorry about someone trying to decipher this
// It takes the current layout, extracts the default value for this query paramter. A query parameter event source is then retreived and flattened
return UIEventSource.flatten(
self.layoutToUse.map((layout) =>
QueryParameters.GetQueryParameter(key, "" + deflt(layout)).map((str) => str === undefined ? deflt(layout) : str !== "false")), [queryParameterSource]);
}
this.featureSwitchUserbadge = featSw("fs-userbadge", (layoutToUse) => layoutToUse?.enableUserBadge);
this.featureSwitchSearch = featSw("fs-search", (layoutToUse) => layoutToUse?.enableSearch);
this.featureSwitchLayers = featSw("fs-layers", (layoutToUse) => layoutToUse?.enableLayers);
this.featureSwitchAddNew = featSw("fs-add-new", (layoutToUse) => layoutToUse?.enableAdd);
this.featureSwitchWelcomeMessage = featSw("fs-welcome-message", () => true);
this.featureSwitchIframe = featSw("fs-iframe", () => false);
this.featureSwitchMoreQuests = featSw("fs-more-quests", () => layoutToUse?.enableMoreQuests);
this.featureSwitchShareScreen = featSw("fs-share-screen", () => layoutToUse?.enableShareScreen);
this.featureSwitchGeolocation = featSw("fs-geolocation", () => layoutToUse?.enableGeolocation);
this.osmConnection = new OsmConnection(
QueryParameters.GetQueryParameter("test", "false").data === "true",
QueryParameters.GetQueryParameter("oauth_token", undefined)
);
CustomLayersState.InitFavouriteLayers(this);
Locale.language.syncWith(this.osmConnection.GetPreference("language"));
Locale.language.addCallback((currentLanguage) => {
if (layoutToUse.supportedLanguages.indexOf(currentLanguage) < 0) {
console.log("Resetting language to", layoutToUse.supportedLanguages[0], "as", currentLanguage, " is unsupported")
// The current language is not supported -> switch to a supported one
Locale.language.setData(layoutToUse.supportedLanguages[0]);
}
}).ping()
document.title = Translations.W(layoutToUse.title).InnerRender();
Locale.language.addCallback(e => {
document.title = Translations.W(layoutToUse.title).InnerRender();
})
this.allElements = new ElementStorage();
this.changes = new Changes(
"Beantwoorden van vragen met #MapComplete voor vragenset #" + this.layoutToUse.data.name,
this);
if(State.runningFromConsole){
console.warn("running from console - not initializing map. Assuming test.html");
return;
}
if (document.getElementById("leafletDiv") === null) {
console.warn("leafletDiv not found - not initializing map. Assuming test.html");
return;
}
}
public GetFilteredLayerFor(id: string) : FilteredLayer{
for (const flayer of this.filteredLayers.data) {
if(flayer.layerDef.id === id){
return flayer;
}
}
return undefined;
}
}