import {UIElement} from "./UI/UIElement"; import * as $ from "jquery" export class Utils { static EncodeXmlValue(str) { return str.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; } static DoEvery(millis: number, f: (() => void)) { if (UIElement.runningFromConsole) { return; } window.setTimeout( function () { f(); Utils.DoEvery(millis, f); } , millis) } public static NoNull(array: T[]): T[] { const ls: T[] = []; for (const t of array) { if (t === undefined || t === null) { continue; } ls.push(t); } return ls; } 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){ 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 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 isRetina(): boolean { if (UIElement.runningFromConsole) { return; } // The cause for this line of code: https://github.com/pietervdvn/MapComplete/issues/115 // See https://stackoverflow.com/questions/19689715/what-is-the-best-way-to-detect-retina-support-on-a-device-using-javascript return ((window.matchMedia && (window.matchMedia('only screen and (min-resolution: 192dpi), only screen and (min-resolution: 2dppx), only screen and (min-resolution: 75.6dpcm)').matches || window.matchMedia('only screen and (-webkit-min-device-pixel-ratio: 2), only screen and (-o-min-device-pixel-ratio: 2/1), only screen and (min--moz-device-pixel-ratio: 2), only screen and (min-device-pixel-ratio: 2)').matches)) || (window.devicePixelRatio && window.devicePixelRatio >= 2)); } // Date will be undefined on failure public static changesetDate(id: number, action: ((isFound: Date) => void)): void { $.getJSON("https://www.openstreetmap.org/api/0.6/changeset/" + id, function (data) { console.log(data) action(new Date(data.elements[0].created_at)); }) .fail(() => { action(undefined); }); } }