forked from MapComplete/MapComplete
492 lines
16 KiB
TypeScript
492 lines
16 KiB
TypeScript
import * as colors from "./assets/colors.json"
|
|
|
|
export class Utils {
|
|
|
|
/**
|
|
* In the 'deploy'-step, some code needs to be run by ts-node.
|
|
* However, ts-node crashes when it sees 'document'. When running from console, we flag this and disable all code where document is needed.
|
|
* This is a workaround and yet another hack
|
|
*/
|
|
public static runningFromConsole = typeof window === "undefined";
|
|
public static readonly assets_path = "./assets/svg/";
|
|
public static externalDownloadFunction: (url: string, headers?: any) => Promise<any>;
|
|
private static knownKeys = ["addExtraTags", "and", "calculatedTags", "changesetmessage", "clustering", "color", "condition", "customCss", "dashArray", "defaultBackgroundId", "description", "descriptionTail", "doNotDownload", "enableAddNewPoints", "enableBackgroundLayerSelection", "enableGeolocation", "enableLayers", "enableMoreQuests", "enableSearch", "enableShareScreen", "enableUserBadge", "freeform", "hideFromOverview", "hideInAnswer", "icon", "iconOverlays", "iconSize", "id", "if", "ifnot", "isShown", "key", "language", "layers", "lockLocation", "maintainer", "mappings", "maxzoom", "maxZoom", "minNeededElements", "minzoom", "multiAnswer", "name", "or", "osmTags", "passAllFeatures", "presets", "question", "render", "roaming", "roamingRenderings", "rotation", "shortDescription", "socialImage", "source", "startLat", "startLon", "startZoom", "tagRenderings", "tags", "then", "title", "titleIcons", "type", "version", "wayHandling", "widenFactor", "width"]
|
|
private static extraKeys = ["nl", "en", "fr", "de", "pt", "es", "name", "phone", "email", "amenity", "leisure", "highway", "building", "yes", "no", "true", "false"]
|
|
private static injectedDownloads = {}
|
|
private static _download_cache = new Map<string, { promise: Promise<any>, timestamp: number }>()
|
|
|
|
static EncodeXmlValue(str) {
|
|
if (typeof str !== "string") {
|
|
str = "" + str
|
|
}
|
|
|
|
return str.replace(/&/g, '&')
|
|
.replace(/</g, '<')
|
|
.replace(/>/g, '>')
|
|
.replace(/"/g, '"')
|
|
.replace(/'/g, ''')
|
|
}
|
|
|
|
/**
|
|
* Gives a clean float, or undefined if parsing fails
|
|
* @param str
|
|
*/
|
|
static asFloat(str): number {
|
|
if (str) {
|
|
const i = parseFloat(str);
|
|
if (isNaN(i)) {
|
|
return undefined;
|
|
}
|
|
return i;
|
|
}
|
|
return undefined;
|
|
}
|
|
|
|
public static Upper(str: string) {
|
|
return str.substr(0, 1).toUpperCase() + str.substr(1);
|
|
}
|
|
|
|
public static TwoDigits(i: number) {
|
|
if (i < 10) {
|
|
return "0" + i;
|
|
}
|
|
return "" + i;
|
|
}
|
|
|
|
public static Round(i: number) {
|
|
if (i < 0) {
|
|
return "-" + Utils.Round(-i);
|
|
}
|
|
const j = "" + Math.floor(i * 10);
|
|
if (j.length == 1) {
|
|
return "0." + j;
|
|
}
|
|
return j.substr(0, j.length - 1) + "." + j.substr(j.length - 1, j.length);
|
|
}
|
|
|
|
public static Times(f: ((i: number) => string), count: number): string {
|
|
let res = "";
|
|
for (let i = 0; i < count; i++) {
|
|
res += f(i);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
public static TimesT<T>(count: number, f: ((i: number) => T)): T[] {
|
|
let res: T[] = [];
|
|
for (let i = 0; i < count; i++) {
|
|
res.push(f(i));
|
|
}
|
|
return res;
|
|
}
|
|
|
|
public static NoNull<T>(array: T[]): T[] {
|
|
const ls: T[] = [];
|
|
for (const t of array) {
|
|
if (t === undefined || t === null) {
|
|
continue;
|
|
}
|
|
ls.push(t);
|
|
}
|
|
return ls;
|
|
}
|
|
|
|
public static Hist(array: string[]): Map<string, number> {
|
|
const hist = new Map<string, number>();
|
|
for (const s of array) {
|
|
hist.set(s, 1 + (hist.get(s) ?? 0))
|
|
}
|
|
return hist;
|
|
}
|
|
|
|
public static NoEmpty(array: string[]): string[] {
|
|
const ls: string[] = [];
|
|
for (const t of array) {
|
|
if (t === "") {
|
|
continue;
|
|
}
|
|
ls.push(t);
|
|
}
|
|
return ls;
|
|
}
|
|
|
|
public static EllipsesAfter(str: string, l: number = 100) {
|
|
if (str === undefined || str === null) {
|
|
return undefined;
|
|
}
|
|
if (str.length <= l) {
|
|
return str;
|
|
}
|
|
return str.substr(0, l - 3) + "...";
|
|
}
|
|
|
|
public static Dedup(arr: string[]): string[] {
|
|
if (arr === undefined) {
|
|
return undefined;
|
|
}
|
|
const newArr = [];
|
|
for (const string of arr) {
|
|
if (newArr.indexOf(string) < 0) {
|
|
newArr.push(string);
|
|
}
|
|
}
|
|
return newArr;
|
|
}
|
|
|
|
public static Identical<T>(t1: T[], t2: T[], eq?: (t: T, t0: T) => boolean): boolean {
|
|
if (t1.length !== t2.length) {
|
|
return false
|
|
}
|
|
eq = (a, b) => a === b
|
|
for (let i = 0; i < t1.length; i++) {
|
|
if (!eq(t1[i], t2[i])) {
|
|
return false
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public static MergeTags(a: any, b: any) {
|
|
const t = {};
|
|
for (const k in a) {
|
|
t[k] = a[k];
|
|
}
|
|
for (const k in b) {
|
|
t[k] = b[k];
|
|
}
|
|
return t;
|
|
}
|
|
|
|
public static SplitFirst(a: string, sep: string): string[] {
|
|
const index = a.indexOf(sep);
|
|
if (index < 0) {
|
|
return [a];
|
|
}
|
|
return [a.substr(0, index), a.substr(index + sep.length)];
|
|
}
|
|
|
|
public static SubstituteKeys(txt: string, tags: any) {
|
|
|
|
const regex = /.*{([^}]*)}.*/
|
|
|
|
let match = txt.match(regex)
|
|
|
|
while (match) {
|
|
const key = match[1]
|
|
txt = txt.replace("{" + key + "}", tags[key] ?? "")
|
|
match = txt.match(regex)
|
|
}
|
|
|
|
return txt;
|
|
}
|
|
|
|
public static LoadCustomCss(location: string) {
|
|
const head = document.getElementsByTagName('head')[0];
|
|
const link = document.createElement('link');
|
|
link.id = "customCss";
|
|
link.rel = 'stylesheet';
|
|
link.type = 'text/css';
|
|
link.href = location;
|
|
link.media = 'all';
|
|
head.appendChild(link);
|
|
console.log("Added custom layout ", location)
|
|
}
|
|
|
|
/**
|
|
* Copies all key-value pairs of the source into the target. This will change the target
|
|
* If the key starts with a '+', the values of the list will be appended to the target instead of overwritten
|
|
* @param source
|
|
* @param target
|
|
* @constructor
|
|
* @return the second parameter as is
|
|
*/
|
|
static Merge(source: any, target: any) {
|
|
for (const key in source) {
|
|
if (!source.hasOwnProperty(key)) {
|
|
continue
|
|
}
|
|
if (key.startsWith("+") || key.endsWith("+")) {
|
|
const trimmedKey = key.replace("+", "");
|
|
const sourceV = source[key];
|
|
const targetV = (target[trimmedKey] ?? [])
|
|
|
|
let newList: any[];
|
|
if (key.startsWith("+")) {
|
|
newList = sourceV.concat(targetV)
|
|
} else {
|
|
newList = targetV.concat(sourceV)
|
|
}
|
|
|
|
target[trimmedKey] = newList;
|
|
continue;
|
|
}
|
|
|
|
const sourceV = source[key];
|
|
const targetV = target[key]
|
|
if (typeof sourceV === "object") {
|
|
if (sourceV === null) {
|
|
target[key] = null
|
|
} else if (targetV === undefined) {
|
|
target[key] = sourceV;
|
|
} else {
|
|
Utils.Merge(sourceV, targetV);
|
|
}
|
|
|
|
} else {
|
|
target[key] = sourceV;
|
|
}
|
|
|
|
}
|
|
return target;
|
|
}
|
|
|
|
static getOrSetDefault<K, V>(dict: Map<K, V>, k: K, v: () => V) {
|
|
let found = dict.get(k);
|
|
if (found !== undefined) {
|
|
return found;
|
|
}
|
|
dict.set(k, v());
|
|
return dict.get(k);
|
|
}
|
|
|
|
public static MinifyJSON(stringified: string): string {
|
|
stringified = stringified.replace(/\|/g, "||");
|
|
|
|
const keys = Utils.knownKeys.concat(Utils.extraKeys);
|
|
for (let i = 0; i < keys.length; i++) {
|
|
const knownKey = keys[i];
|
|
let code = i;
|
|
if (i >= 124) {
|
|
code += 1; // Character 127 is our 'escape' character |
|
|
}
|
|
let replacement = "|" + String.fromCharCode(code)
|
|
stringified = stringified.replace(new RegExp(`\"${knownKey}\":`, "g"), replacement);
|
|
}
|
|
|
|
return stringified;
|
|
}
|
|
|
|
public static UnMinify(minified: string): string {
|
|
|
|
if (minified === undefined || minified === null) {
|
|
return undefined;
|
|
}
|
|
|
|
const parts = minified.split("|");
|
|
let result = parts.shift();
|
|
const keys = Utils.knownKeys.concat(Utils.extraKeys);
|
|
|
|
for (const part of parts) {
|
|
if (part == "") {
|
|
// Empty string => this was a || originally
|
|
result += "|"
|
|
continue
|
|
}
|
|
const i = part.charCodeAt(0);
|
|
result += "\"" + keys[i] + "\":" + part.substring(1)
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
public static injectJsonDownloadForTests(url: string, data) {
|
|
Utils.injectedDownloads[url] = data
|
|
}
|
|
|
|
public static download(url: string, headers?: any): Promise<string> {
|
|
if (this.externalDownloadFunction !== undefined) {
|
|
return this.externalDownloadFunction(url, headers)
|
|
}
|
|
|
|
return new Promise((resolve, reject) => {
|
|
const xhr = new XMLHttpRequest();
|
|
xhr.onload = () => {
|
|
if (xhr.status == 200) {
|
|
resolve(xhr.response)
|
|
} else if (xhr.status === 509 || xhr.status === 429) {
|
|
reject("rate limited")
|
|
} else {
|
|
reject(xhr.statusText)
|
|
}
|
|
};
|
|
xhr.open('GET', url);
|
|
if (headers !== undefined) {
|
|
|
|
for (const key in headers) {
|
|
xhr.setRequestHeader(key, headers[key])
|
|
}
|
|
}
|
|
|
|
xhr.send();
|
|
xhr.onerror = reject
|
|
}
|
|
)
|
|
}
|
|
|
|
public static async downloadJsonCached(url: string, maxCacheTimeMs: number, headers?: any): Promise<any> {
|
|
const cached = Utils._download_cache.get(url)
|
|
if (cached !== undefined) {
|
|
if ((new Date().getTime() - cached.timestamp) <= maxCacheTimeMs) {
|
|
return cached.promise
|
|
}
|
|
}
|
|
const promise = /*NO AWAIT as we work with the promise directly */Utils.downloadJson(url, headers)
|
|
Utils._download_cache.set(url, {promise, timestamp: new Date().getTime()})
|
|
return await promise
|
|
}
|
|
|
|
public static async downloadJson(url: string, headers?: any): Promise<any> {
|
|
const injected = Utils.injectedDownloads[url]
|
|
if (injected !== undefined) {
|
|
console.log("Using injected resource for test for URL", url)
|
|
return new Promise((resolve, _) => resolve(injected))
|
|
}
|
|
const data = await Utils.download(url, Utils.Merge({"accept": "application/json"}, headers ?? {}))
|
|
try {
|
|
return JSON.parse(data)
|
|
} catch (e) {
|
|
console.error("Could not parse ", data, "due to", e, "\n", e.stack)
|
|
throw e;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Triggers a 'download file' popup which will download the contents
|
|
*/
|
|
public static offerContentsAsDownloadableFile(contents: string | Blob, fileName: string = "download.txt",
|
|
options?: { mimetype: string }) {
|
|
const element = document.createElement("a");
|
|
let file;
|
|
if (typeof (contents) === "string") {
|
|
file = new Blob([contents], {type: options?.mimetype ?? 'text/plain'});
|
|
} else {
|
|
file = contents;
|
|
}
|
|
element.href = URL.createObjectURL(file);
|
|
element.download = fileName;
|
|
document.body.appendChild(element); // Required for this to work in FireFox
|
|
element.click();
|
|
}
|
|
|
|
public static ColourNameToHex(color: string): string {
|
|
return colors[color.toLowerCase()] ?? color;
|
|
}
|
|
|
|
public static HexToColourName(hex: string): string {
|
|
hex = hex.toLowerCase()
|
|
if (!hex.startsWith("#")) {
|
|
return hex;
|
|
}
|
|
const c = Utils.color(hex);
|
|
|
|
let smallestDiff = Number.MAX_VALUE;
|
|
let bestColor = undefined;
|
|
for (const color in colors) {
|
|
if (!colors.hasOwnProperty(color)) {
|
|
continue;
|
|
}
|
|
const foundhex = colors[color];
|
|
if (typeof foundhex !== "string") {
|
|
continue
|
|
}
|
|
if (foundhex === hex) {
|
|
return color
|
|
}
|
|
const diff = this.colorDiff(Utils.color(foundhex), c)
|
|
if (diff > 50) {
|
|
continue;
|
|
}
|
|
if (diff < smallestDiff) {
|
|
smallestDiff = diff;
|
|
bestColor = color;
|
|
}
|
|
}
|
|
return bestColor ?? hex;
|
|
}
|
|
|
|
static sortKeys(o: any) {
|
|
const copy = {}
|
|
let keys = Object.keys(o)
|
|
keys = keys.sort()
|
|
for (const key of keys) {
|
|
let v = o[key]
|
|
if (typeof v === "object") {
|
|
v = Utils.sortKeys(v)
|
|
}
|
|
copy[key] = v
|
|
}
|
|
return copy
|
|
}
|
|
|
|
public static async waitFor(timeMillis: number): Promise<void> {
|
|
return new Promise((resolve) => {
|
|
window.setTimeout(resolve, timeMillis);
|
|
})
|
|
}
|
|
|
|
public static toHumanTime(seconds): string {
|
|
seconds = Math.floor(seconds)
|
|
let minutes = Math.floor(seconds / 60)
|
|
seconds = seconds % 60
|
|
let hours = Math.floor(minutes / 60)
|
|
minutes = minutes % 60
|
|
let days = Math.floor(hours / 24)
|
|
hours = hours % 24
|
|
if (days > 0) {
|
|
return days + "days" + " " + hours + "h"
|
|
}
|
|
return hours + ":" + Utils.TwoDigits(minutes) + ":" + Utils.TwoDigits(seconds)
|
|
}
|
|
|
|
public static DisableLongPresses() {
|
|
// Remove all context event listeners on mobile to prevent long presses
|
|
window.addEventListener('contextmenu', (e) => { // Not compatible with IE < 9
|
|
|
|
if (e.target["nodeName"] === "INPUT") {
|
|
return;
|
|
}
|
|
e.preventDefault();
|
|
return false;
|
|
}, false);
|
|
|
|
}
|
|
|
|
public static OsmChaLinkFor(daysInThePast, theme = undefined): string {
|
|
const now = new Date()
|
|
const lastWeek = new Date(now.getTime() - daysInThePast * 24 * 60 * 60 * 1000)
|
|
const date = lastWeek.getFullYear() + "-" + Utils.TwoDigits(lastWeek.getMonth() + 1) + "-" + Utils.TwoDigits(lastWeek.getDate())
|
|
let osmcha_link = `{"date__gte":[{"label":"${date}","value":"${date}"}],"editor":[{"label":"mapcomplete","value":"mapcomplete"}]}`
|
|
if (theme !== undefined) {
|
|
osmcha_link = osmcha_link + "," + `{"comment":[{"label":"#${theme}","value":"#${theme}"}]`
|
|
}
|
|
return "https://osmcha.org/?filters=" + encodeURIComponent(osmcha_link)
|
|
}
|
|
|
|
private static colorDiff(c0: { r: number, g: number, b: number }, c1: { r: number, g: number, b: number }) {
|
|
return Math.abs(c0.r - c1.r) + Math.abs(c0.g - c1.g) + Math.abs(c0.b - c1.b);
|
|
}
|
|
|
|
private static color(hex: string): { r: number, g: number, b: number } {
|
|
if (hex.startsWith == undefined) {
|
|
console.trace("WUT?", hex)
|
|
throw "wut?"
|
|
}
|
|
if (!hex.startsWith("#")) {
|
|
return undefined;
|
|
}
|
|
if (hex.length === 4) {
|
|
return {
|
|
r: parseInt(hex.substr(1, 1), 16),
|
|
g: parseInt(hex.substr(2, 1), 16),
|
|
b: parseInt(hex.substr(3, 1), 16),
|
|
}
|
|
}
|
|
|
|
return {
|
|
r: parseInt(hex.substr(1, 2), 16),
|
|
g: parseInt(hex.substr(3, 2), 16),
|
|
b: parseInt(hex.substr(5, 2), 16),
|
|
}
|
|
}
|
|
}
|
|
|