mapcomplete/State.ts
2020-10-09 20:10:21 +02:00

286 lines
12 KiB
TypeScript

import {UIElement} from "./UI/UIElement";
import {Layout} from "./Customizations/Layout";
import {Utils} from "./Utils";
import {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 Translations from "./UI/i18n/Translations";
import {FilteredLayer} from "./Logic/FilteredLayer";
import {LayerUpdater} from "./Logic/LayerUpdater";
import {UIEventSource} from "./Logic/UIEventSource";
import {LocalStorageSource} from "./Logic/Web/LocalStorageSource";
import {QueryParameters} from "./Logic/Web/QueryParameters";
import {BaseLayer} from "./Logic/BaseLayer";
/**
* Contains the global state: a bunch of UI-event sources
*/
export default class State {
// The singleton of the global state
public static state: State;
public static vNumber = "0.1.0b";
// The user journey states thresholds when a new feature gets unlocked
public static userJourney = {
addNewPointsUnlock: 1,
moreScreenUnlock: 5,
personalLayoutUnlock: 20,
tagsVisibleAt: 100,
mapCompleteHelpUnlock: 200,
tagsVisibleAndWikiLinked: 150,
themeGeneratorReadOnlyUnlock: 200,
themeGeneratorFullUnlock: 500,
addNewPointWithUnreadMessagesUnlock: 500,
minZoomLevelToAddNewPoints: (Utils.isRetina() ? 18 : 19)
};
public static runningFromConsole: boolean = false;
public readonly layoutToUse = new UIEventSource<Layout>(undefined);
/**
The mapping from id -> UIEventSource<properties>
*/
public allElements: ElementStorage;
/**
THe change handler
*/
public changes: Changes;
/**
THe basemap with leaflet instance
*/
public bm;
/**
* Background layer id
*/
public availableBackgroundLayers: UIEventSource<BaseLayer[]>;
/**
The user credentials
*/
public osmConnection: OsmConnection;
public favouriteLayers: UIEventSource<string[]>;
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>("");
/**
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: UIEventSource<number>;
public readonly lat: UIEventSource<number>;
public readonly lon: UIEventSource<number>;
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: {lat:number, lon:number},
accuracy: number
}> = new UIEventSource<{ latlng: {lat:number, lon:number}, accuracy: number }>(undefined);
public layoutDefinition: string;
public installedThemes: UIEventSource<{ layout: Layout; definition: string }[]>;
public layerControlIsOpened: UIEventSource<boolean> = QueryParameters.GetQueryParameter("layer-control-toggle", "false")
.map<boolean>((str) => str !== "false", [], b => "" + b)
public welcomeMessageOpenedTab = QueryParameters.GetQueryParameter("tab", "0").map<number>(
str => isNaN(Number(str)) ? 0 : Number(str), [], n => "" + n
);
constructor(layoutToUse: Layout) {
const self = this;
this.layoutToUse.setData(layoutToUse);
function asFloat(source: UIEventSource<string>): UIEventSource<number> {
return source.map(str => {
let parsed = parseFloat(str);
return isNaN(parsed) ? undefined : parsed;
}, [], fl => {
if (fl === undefined || isNaN(fl)) {
return undefined;
}
return ("" + fl).substr(0, 8);
})
}
this.zoom = asFloat(
QueryParameters.GetQueryParameter("z", "" + layoutToUse.startzoom)
.syncWith(LocalStorageSource.Get("zoom"), true));
this.lat = asFloat(QueryParameters.GetQueryParameter("lat", "" + layoutToUse.startLat)
.syncWith(LocalStorageSource.Get("lat"), true));
this.lon = asFloat(QueryParameters.GetQueryParameter("lon", "" + layoutToUse.startLon)
.syncWith(LocalStorageSource.Get("lon"), true));
this.locationControl = new UIEventSource<{ lat: number, lon: number, zoom: number }>({
zoom: Utils.asFloat(this.zoom.data),
lat: Utils.asFloat(this.lat.data),
lon: Utils.asFloat(this.lon.data),
}).addCallback((latlonz) => {
this.zoom.setData(latlonz.zoom);
this.lat.setData(latlonz.lat);
this.lon.setData(latlonz.lon);
});
this.layoutToUse.addCallback(layoutToUse => {
const lcd = self.locationControl.data;
lcd.zoom = lcd.zoom ?? layoutToUse?.startzoom;
lcd.lat = lcd.lat ?? layoutToUse?.startLat;
lcd.lon = lcd.lon ?? layoutToUse?.startLon;
self.locationControl.ping();
});
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) => {
const defaultValue = deflt(layout);
const queryParam = QueryParameters.GetQueryParameter(key, "" + defaultValue)
return queryParam.map((str) => str === undefined ? defaultValue : (str !== "false"));
}), [queryParameterSource]);
}
this.featureSwitchUserbadge = featSw("fs-userbadge", (layoutToUse) => layoutToUse?.enableUserBadge ?? true);
this.featureSwitchSearch = featSw("fs-search", (layoutToUse) => layoutToUse?.enableSearch ?? true);
this.featureSwitchLayers = featSw("fs-layers", (layoutToUse) => layoutToUse?.enableLayers ?? true);
this.featureSwitchAddNew = featSw("fs-add-new", (layoutToUse) => layoutToUse?.enableAdd ?? true);
this.featureSwitchWelcomeMessage = featSw("fs-welcome-message", () => true);
this.featureSwitchIframe = featSw("fs-iframe", () => false);
this.featureSwitchMoreQuests = featSw("fs-more-quests", (layoutToUse) => layoutToUse?.enableMoreQuests ?? true);
this.featureSwitchShareScreen = featSw("fs-share-screen", (layoutToUse) => layoutToUse?.enableShareScreen ?? true);
this.featureSwitchGeolocation = featSw("fs-geolocation", (layoutToUse) => layoutToUse?.enableGeolocation ?? true);
const testParam = QueryParameters.GetQueryParameter("test", "false").data;
this.osmConnection = new OsmConnection(
testParam === "true",
QueryParameters.GetQueryParameter("oauth_token", undefined),
layoutToUse.id,
true
);
this.installedThemes = this.osmConnection.preferencesHandler.preferences.map<{ layout: Layout, definition: string }[]>(allPreferences => {
const installedThemes: { layout: Layout, definition: string }[] = [];
if (allPreferences === undefined) {
return installedThemes;
}
for (const allPreferencesKey in allPreferences) {
const themename = allPreferencesKey.match(/^mapcomplete-installed-theme-(.*)-combined-length$/);
if (themename && themename[1] !== "") {
const customLayout = State.state.osmConnection.GetLongPreference("installed-theme-" + themename[1]);
if(customLayout.data === undefined){
console.log("No data defined for ", themename[1]);
continue;
}
try {
const layout = State.FromBase64(customLayout.data);
if(layout.id === undefined){
// This is an old style theme
// We remove it
customLayout.setData(undefined);
continue;
}
installedThemes.push({
layout: layout,
definition: customLayout.data
});
} catch (e) {
console.warn("Could not parse custom layout from preferences: ", allPreferencesKey, e, customLayout.data);
}
}
}
return installedThemes;
});
// IMportant: the favourite layers are initiliazed _after_ the installed themes, as these might contain an installedTheme
this.favouriteLayers = this.osmConnection.GetLongPreference("favouriteLayers").map(
str => Utils.Dedup(str?.split(";")) ?? [],
[], layers => Utils.Dedup(layers)?.join(";")
);
Locale.language.syncWith(this.osmConnection.GetPreference("language"));
Locale.language.addCallback((currentLanguage) => {
const layoutToUse = self.layoutToUse.data;
if (layoutToUse === undefined) {
return;
}
if (this.layoutToUse.data.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()
this.layoutToUse.map((layoutToUse) => {
return Translations.WT(layoutToUse?.title)?.txt ?? "MapComplete"
}, [Locale.language]
).addCallbackAndRun((title) => {
document.title = title
});
this.allElements = new ElementStorage();
this.changes = new Changes();
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 static FromBase64 : (data: string) => Layout = undefined;
}