mapcomplete/State.ts
2020-11-23 03:13:52 +01:00

316 lines
14 KiB
TypeScript

import {UIElement} from "./UI/UIElement";
import {Utils} from "./Utils";
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 {UpdateFromOverpass} from "./Logic/UpdateFromOverpass";
import {UIEventSource} from "./Logic/UIEventSource";
import {LocalStorageSource} from "./Logic/Web/LocalStorageSource";
import {QueryParameters} from "./Logic/Web/QueryParameters";
import {BaseLayer} from "./Logic/BaseLayer";
import LayoutConfig from "./Customizations/JSON/LayoutConfig";
import Hash from "./Logic/Web/Hash";
/**
* 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 = "0.2.2a";
// The user journey states thresholds when a new feature gets unlocked
public static userJourney = {
addNewPointsUnlock: 0,
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<LayoutConfig>(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: UpdateFromOverpass;
public filteredLayers: UIEventSource<FilteredLayer[]> = new UIEventSource<FilteredLayer[]>([])
/**
* 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<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, lng:number},
accuracy: number
}> = new UIEventSource<{ latlng: {lat:number, lng:number}, accuracy: number }>(undefined);
public layoutDefinition: string;
public installedThemes: UIEventSource<{ layout: LayoutConfig; definition: string }[]>;
public layerControlIsOpened: UIEventSource<boolean> = QueryParameters.GetQueryParameter("layer-control-toggle", "false", "Wether or not the layer control is shown")
.map<boolean>((str) => str !== "false", [], b => "" + b)
public welcomeMessageOpenedTab = QueryParameters.GetQueryParameter("tab", "0", `The tab that is shown in the welcome-message. 0 = the explanation of the theme,1 = OSM-credits, 2 = sharescreen, 3 = more themes, 4 = about mapcomplete (user must be logged in and have >${State.userJourney.mapCompleteHelpUnlock} changesets)`).map<number>(
str => isNaN(Number(str)) ? 0 : Number(str), [], n => "" + n
);
constructor(layoutToUse: LayoutConfig) {
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, "The initial/current zoom level")
.syncWith(LocalStorageSource.Get("zoom")));
this.lat = asFloat(QueryParameters.GetQueryParameter("lat", "" + layoutToUse.startLat, "The initial/current latitude")
.syncWith(LocalStorageSource.Get("lat")));
this.lon = asFloat(QueryParameters.GetQueryParameter("lon", "" + layoutToUse.startLon, "The initial/current longitude of the app")
.syncWith(LocalStorageSource.Get("lon")));
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: LayoutConfig) => boolean, documentation: string): UIEventSource<boolean> {
const queryParameterSource = QueryParameters.GetQueryParameter(key, undefined, documentation);
// 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, documentation)
return queryParam.map((str) => str === undefined ? defaultValue : (str !== "false"));
}), [queryParameterSource]);
}
this.featureSwitchUserbadge = featSw("fs-userbadge", (layoutToUse) => layoutToUse?.enableUserBadge ?? true,
"Disables/Enables the user information pill (userbadge) at the top left. Disabling this disables logging in and thus disables editing all together, effectively putting MapComplete into read-only mode.");
this.featureSwitchSearch = featSw("fs-search", (layoutToUse) => layoutToUse?.enableSearch ?? true,
"Disables/Enables the search bar");
this.featureSwitchLayers = featSw("fs-layers", (layoutToUse) => layoutToUse?.enableLayers ?? true,
"Disables/Enables the layer control");
this.featureSwitchAddNew = featSw("fs-add-new", (layoutToUse) => layoutToUse?.enableAddNewPoints ?? true,
"Disables/Enables the 'add new feature'-popup. (A theme without presets might not have it in the first place)");
this.featureSwitchWelcomeMessage = featSw("fs-welcome-message", () => true,
"Disables/enables the help menu or welcome message");
this.featureSwitchIframe = featSw("fs-iframe", () => false,
"Disables/Enables the iframe-popup");
this.featureSwitchMoreQuests = featSw("fs-more-quests", (layoutToUse) => layoutToUse?.enableMoreQuests ?? true,
"Disables/Enables the 'More Quests'-tab in the welcome message");
this.featureSwitchShareScreen = featSw("fs-share-screen", (layoutToUse) => layoutToUse?.enableShareScreen ?? true,
"Disables/Enables the 'Share-screen'-tab in the welcome message");
this.featureSwitchGeolocation = featSw("fs-geolocation", (layoutToUse) => layoutToUse?.enableGeolocation ?? true,
"Disables/Enables the geolocation button");
const testParam = QueryParameters.GetQueryParameter("test", "false",
"If true, 'dryrun' mode is activated. The app will behave as normal, except that changes to OSM will be printed onto the console instead of actually uploaded to osm.org").data;
this.osmConnection = new OsmConnection(
testParam === "true",
QueryParameters.GetQueryParameter("oauth_token", undefined,
"Used to complete the login"),
layoutToUse.id,
true
);
const h = Hash.Get();
this.selectedElement.addCallback(selected => {
if (selected === undefined) {
h.setData("");
} else {
h.setData(selected.id)
}
}
)
h.addCallbackAndRun(hash => {
if(hash === undefined || hash === ""){
self.selectedElement.setData(undefined);
}
})
this.installedThemes = this.osmConnection.preferencesHandler.preferences.map<{ layout: LayoutConfig, definition: string }[]>(allPreferences => {
const installedThemes: { layout: LayoutConfig, definition: string }[] = [];
if (allPreferences === undefined) {
return installedThemes;
}
const invalidThemes = []
for (const allPreferencesKey in allPreferences) {
const themename = allPreferencesKey.match(/^mapcomplete-installed-theme-(.*)-combined-length$/);
if (themename && themename[1] !== "") {
const customLayout = self.osmConnection.GetLongPreference("installed-theme-" + themename[1]);
if (customLayout.data === undefined) {
console.log("No data defined for ", themename[1]);
continue;
}
try {
const json = btoa(customLayout.data);
console.log(json);
const layout = new LayoutConfig(
JSON.parse(json));
installedThemes.push({
layout: layout,
definition: customLayout.data
});
} catch (e) {
console.warn("Could not parse custom layout from preferences - deleting: ", allPreferencesKey, e, customLayout.data);
invalidThemes.push(themename[1])
}
}
}
for (const invalid of invalidThemes) {
console.error("Attempting to remove ", invalid)
this.osmConnection.GetLongPreference(
"installed-theme-" + invalid
).setData(null);
}
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.language.indexOf(currentLanguage) < 0) {
console.log("Resetting language to", layoutToUse.language[0], "as", currentLanguage, " is unsupported")
// The current language is not supported -> switch to a supported one
Locale.language.setData(layoutToUse.language[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;
}
}
}