1493 lines
46 KiB
TypeScript
1493 lines
46 KiB
TypeScript
import colors from "./assets/colors.json"
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import {HTMLElement} from "node-html-parser";
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export class Utils {
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/**
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* In the 'deploy'-step, some code needs to be run by ts-node.
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* However, ts-node crashes when it sees 'document'. When running from console, we flag this and disable all code where document is needed.
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* This is a workaround and yet another hack
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*/
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public static runningFromConsole = typeof window === "undefined"
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public static readonly assets_path = "./assets/svg/"
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public static externalDownloadFunction: (
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url: string,
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headers?: any
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) => Promise<{ content: string } | { redirect: string }>
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public static Special_visualizations_tagsToApplyHelpText = `These can either be a tag to add, such as \`amenity=fast_food\` or can use a substitution, e.g. \`addr:housenumber=$number\`.
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This new point will then have the tags \`amenity=fast_food\` and \`addr:housenumber\` with the value that was saved in \`number\` in the original feature.
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If a value to substitute is undefined, empty string will be used instead.
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This supports multiple values, e.g. \`ref=$source:geometry:type/$source:geometry:ref\`
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Remark that the syntax is slightly different then expected; it uses '$' to note a value to copy, followed by a name (matched with \`[a-zA-Z0-9_:]*\`). Sadly, delimiting with \`{}\` as these already mark the boundaries of the special rendering...
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Note that these values can be prepare with javascript in the theme by using a [calculatedTag](calculatedTags.md#calculating-tags-with-javascript)
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`
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public static readonly imageExtensions = new Set(["jpg", "png", "svg", "jpeg", ".gif"])
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public static readonly special_visualizations_importRequirementDocs = `#### Importing a dataset into OpenStreetMap: requirements
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If you want to import a dataset, make sure that:
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1. The dataset to import has a suitable license
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2. The community has been informed of the import
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3. All other requirements of the [import guidelines](https://wiki.openstreetmap.org/wiki/Import/Guidelines) have been followed
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There are also some technicalities in your theme to keep in mind:
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1. The new feature will be added and will flow through the program as any other new point as if it came from OSM.
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This means that there should be a layer which will match the new tags and which will display it.
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2. The original feature from your geojson layer will gain the tag '_imported=yes'.
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This should be used to change the appearance or even to hide it (eg by changing the icon size to zero)
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3. There should be a way for the theme to detect previously imported points, even after reloading.
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A reference number to the original dataset is an excellent way to do this
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4. When importing ways, the theme creator is also responsible of avoiding overlapping ways.
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#### Disabled in unofficial themes
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The import button can be tested in an unofficial theme by adding \`test=true\` or \`backend=osm-test\` as [URL-paramter](URL_Parameters.md).
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The import button will show up then. If in testmode, you can read the changeset-XML directly in the web console.
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In the case that MapComplete is pointed to the testing grounds, the edit will be made on https://master.apis.dev.openstreetmap.org`
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private static knownKeys = [
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"addExtraTags",
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"and",
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"calculatedTags",
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"changesetmessage",
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"clustering",
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"color",
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"condition",
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"customCss",
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"dashArray",
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"defaultBackgroundId",
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"description",
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"descriptionTail",
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"doNotDownload",
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"enableAddNewPoints",
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"enableBackgroundLayerSelection",
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"enableGeolocation",
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"enableLayers",
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"enableMoreQuests",
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"enableSearch",
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"enableShareScreen",
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"enableUserBadge",
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"freeform",
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"hideFromOverview",
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"hideInAnswer",
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"icon",
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"iconOverlays",
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"iconSize",
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"id",
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"if",
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"ifnot",
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"isShown",
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"key",
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"language",
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"layers",
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"lockLocation",
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"maintainer",
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"mappings",
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"maxzoom",
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"maxZoom",
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"minNeededElements",
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"minzoom",
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"multiAnswer",
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"name",
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"or",
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"osmTags",
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"passAllFeatures",
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"presets",
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"question",
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"render",
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"roaming",
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"roamingRenderings",
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"rotation",
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"shortDescription",
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"socialImage",
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"source",
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"startLat",
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"startLon",
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"startZoom",
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"tagRenderings",
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"tags",
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"then",
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"title",
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"titleIcons",
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"type",
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"version",
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"wayHandling",
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"widenFactor",
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"width",
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]
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private static extraKeys = [
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"nl",
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"en",
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"fr",
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"de",
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"pt",
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"es",
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"name",
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"phone",
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"email",
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"amenity",
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"leisure",
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"highway",
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"building",
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"yes",
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"no",
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"true",
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"false",
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]
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private static injectedDownloads = {}
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private static _download_cache = new Map<
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string,
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{
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promise: Promise<any | { error: string; url: string; statuscode?: number }>
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timestamp: number
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}
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>()
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/**
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* Parses the arguments for special visualisations
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*/
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public static ParseVisArgs(
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specs: { name: string; defaultValue?: string }[],
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args: string[]
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): Record<string, string> {
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const parsed: Record<string, string> = {}
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if (args.length > specs.length) {
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throw (
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"To much arguments for special visualization: got " +
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args.join(",") +
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" but expected only " +
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args.length +
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" arguments"
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)
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}
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for (let i = 0; i < specs.length; i++) {
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const spec = specs[i]
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let arg = args[i]?.trim()
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if (arg === undefined || arg === "") {
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arg = spec.defaultValue
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}
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parsed[spec.name] = arg
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}
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return parsed
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}
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static EncodeXmlValue(str) {
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if (typeof str !== "string") {
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str = "" + str
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}
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return str
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.replace(/&/g, "&")
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.replace(/</g, "<")
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.replace(/>/g, ">")
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.replace(/"/g, """)
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.replace(/'/g, "'")
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}
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/**
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* Gives a clean float, or undefined if parsing fails
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* @param str
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*/
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static asFloat(str): number {
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if (str) {
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const i = parseFloat(str)
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if (isNaN(i)) {
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return undefined
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}
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return i
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}
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return undefined
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}
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public static Upper(str: string) {
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return str.substr(0, 1).toUpperCase() + str.substr(1)
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}
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public static TwoDigits(i: number) {
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if (i < 10) {
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return "0" + i
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}
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return "" + i
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}
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/**
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* Converts a number to a string with one number after the comma
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*
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* Utils.Round(15) // => "15.0"
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* Utils.Round(1) // => "1.0"
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* Utils.Round(1.5) // => "1.5"
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* Utils.Round(0.5) // => "0.5"
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* Utils.Round(1.6) // => "1.6"
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* Utils.Round(-15) // => "-15.0"
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* Utils.Round(-1) // => "-1.0"
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* Utils.Round(-1.5) // => "-1.5"
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* Utils.Round(-0.5) // => "-0.5"
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* Utils.Round(-1.6) // => "-1.6"
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* Utils.Round(-1531.63543) // =>"-1531.6"
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*/
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public static Round(i: number): string {
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if (i < 0) {
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return "-" + Utils.Round(-i)
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}
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const j = "" + Math.floor(i * 10)
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if (j.length == 1) {
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return "0." + j
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}
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return j.substr(0, j.length - 1) + "." + j.substr(j.length - 1, j.length)
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}
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public static Times(f: (i: number) => string, count: number): string {
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let res = ""
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for (let i = 0; i < count; i++) {
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res += f(i)
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}
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return res
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}
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public static TimesT<T>(count: number, f: (i: number) => T): T[] {
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let res: T[] = []
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for (let i = 0; i < count; i++) {
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res.push(f(i))
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}
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return res
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}
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public static NoNull<T>(array: T[]): NonNullable<T>[] {
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return <any>array?.filter((o) => o !== undefined && o !== null)
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}
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public static Hist(array: string[]): Map<string, number> {
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const hist = new Map<string, number>()
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for (const s of array) {
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hist.set(s, 1 + (hist.get(s) ?? 0))
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}
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return hist
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}
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/**
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* Removes all empty strings from this list
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* If undefined or null is given, an empty list is returned
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*
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* Utils.NoEmpty(undefined) // => []
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* Utils.NoEmpty(["abc","","def", null]) // => ["abc","def", null]
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*
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*/
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public static NoEmpty(array: string[]): string[] {
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const ls: string[] = []
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if (!array) {
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return ls
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}
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for (const t of array) {
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if (t === "") {
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continue
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}
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ls.push(t)
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}
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return ls
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}
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public static EllipsesAfter(str: string, l: number = 100) {
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if (str === undefined || str === null) {
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return undefined
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}
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if (str.length <= l) {
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return str
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}
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return str.substr(0, l - 3) + "..."
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}
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/**
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* Adds a property to the given object, but the value will _only_ be calculated when it is actually requested
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* @param object
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* @param name
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* @param init
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* @constructor
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*/
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public static AddLazyProperty(
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object: any,
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name: string,
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init: () => any,
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whenDone?: () => void
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) {
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Object.defineProperty(object, name, {
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enumerable: false,
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configurable: true,
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get: () => {
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delete object[name]
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object[name] = init()
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if (whenDone) {
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whenDone()
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}
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return object[name]
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},
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})
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}
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/**
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* Adds a property to the given object, but the value will _only_ be calculated when it is actually requested
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*/
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public static AddLazyPropertyAsync(
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object: any,
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name: string,
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init: () => Promise<any>,
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whenDone?: () => void
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) {
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Object.defineProperty(object, name, {
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enumerable: false,
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configurable: true,
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get: () => {
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console.trace("Property", name, "got requested")
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init().then((r) => {
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delete object[name]
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object[name] = r
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if (whenDone) {
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whenDone()
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}
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})
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},
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})
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}
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public static FixedLength(str: string, l: number) {
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str = Utils.EllipsesAfter(str, l)
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while (str.length < l) {
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str = " " + str
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}
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return str
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}
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/**
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* Creates a new array with all elements from 'arr' in such a way that every element will be kept only once
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* Elements are returned in the same order as they appear in the lists
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* @param arr
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* @constructor
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*/
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public static Dedup(arr: string[]): string[] {
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if (arr === undefined) {
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return undefined
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}
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const newArr = []
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for (const string of arr) {
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if (newArr.indexOf(string) < 0) {
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newArr.push(string)
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}
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}
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return newArr
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}
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public static Dupiclates(arr: string[]): string[] {
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if (arr === undefined) {
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return undefined
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}
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const newArr = []
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const seen = new Set<string>()
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for (const string of arr) {
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if (seen.has(string)) {
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newArr.push(string)
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}
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seen.add(string)
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}
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return newArr
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}
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/**
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* In the given list, all values which are lists will be merged with the values, e.g.
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*
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* Utils.Flatten([ [1,2], 3, [4, [5 ,6]] ]) // => [1, 2, 3, 4, [5, 6]]
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*/
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public static Flatten<T>(list: (T | T[])[]): T[] {
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const result = []
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for (const value of list) {
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if (Array.isArray(value)) {
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result.push(...value)
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} else {
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result.push(value)
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}
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}
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return result
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}
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/**
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* Utils.Identical([1,2], [1,2]) // => true
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* Utils.Identical([1,2,3], [1,2,4}]) // => false
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* Utils.Identical([1,2], [1,2,3]) // => false
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*/
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public static Identical<T>(t1: T[], t2: T[], eq?: (t: T, t0: T) => boolean): boolean {
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if (t1.length !== t2.length) {
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return false
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}
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eq = (a, b) => a === b
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for (let i = 0; i < t1.length; i++) {
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if (!eq(t1[i], t2[i])) {
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return false
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}
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}
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return true
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}
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/**
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* Utils.MergeTags({k0:"v0","common":"0"},{k1:"v1", common: "1"}) // => {k0: "v0", k1:"v1", common: "1"}
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*/
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public static MergeTags(a: any, b: any) {
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const t = {}
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for (const k in a) {
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t[k] = a[k]
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}
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for (const k in b) {
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t[k] = b[k]
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}
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return t
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}
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public static SplitFirst(a: string, sep: string): string[] {
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const index = a.indexOf(sep)
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if (index < 0) {
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return [a]
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}
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return [a.substr(0, index), a.substr(index + sep.length)]
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}
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/**
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* Given a piece of text, will replace any key occuring in 'tags' by the corresponding value
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* @param txt
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* @param tags
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* @param useLang
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* @constructor
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*/
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public static SubstituteKeys(
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txt: string | undefined,
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tags?: Record<string, any>,
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useLang?: string
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): string | undefined {
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if (txt === undefined) {
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return undefined
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}
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const regex = /.*{([^}]*)}.*/
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let match = txt.match(regex)
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while (match) {
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const key = match[1]
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let v = tags === undefined ? undefined : tags[key]
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if (v !== undefined && v !== null) {
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if (v["toISOString"] != undefined) {
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// This is a date, probably the timestamp of the object
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// @ts-ignore
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const date: Date = el
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v = date.toISOString()
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}
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if (useLang !== undefined && v?.translations !== undefined) {
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v =
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v.translations[useLang] ??
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v.translations["*"] ??
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(v.textFor !== undefined ? v.textFor(useLang) : v)
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}
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|
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if (v.InnerConstructElement !== undefined) {
|
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console.warn(
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"SubstituteKeys received a BaseUIElement to substitute in - this is probably a bug and will be downcast to a string\nThe key is",
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key,
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"\nThe value is",
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v
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)
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v = (<HTMLElement>v.InnerConstructElement())?.textContent
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}
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|
|
|
if (typeof v !== "string") {
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v = "" + v
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|
}
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v = v.replace(/\n/g, "<br/>")
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} else {
|
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// v === undefined
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v = ""
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|
}
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txt = txt.replace("{" + key + "}", v)
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match = txt.match(regex)
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}
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|
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return txt
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}
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|
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public static LoadCustomCss(location: string) {
|
|
const head = document.getElementsByTagName("head")[0]
|
|
const link = document.createElement("link")
|
|
link.id = "customCss"
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|
link.rel = "stylesheet"
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|
link.type = "text/css"
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link.href = location
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link.media = "all"
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head.appendChild(link)
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console.log("Added custom css file ", location)
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}
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|
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public static PushList<T>(target: T[], source?: T[]) {
|
|
if (source === undefined) {
|
|
return
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}
|
|
target.push(...source)
|
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}
|
|
|
|
/**
|
|
* 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
|
|
* If the key starts with `=`, the property will be overwritten.
|
|
*
|
|
* 'Source' will not be modified, but 'Target' will be
|
|
*
|
|
* const obj = {someValue: 42};
|
|
* const override = {someValue: null};
|
|
* Utils.Merge(override, obj);
|
|
* obj.someValue // => null
|
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*
|
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* const obj = {someValue: 42};
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|
* const override = {someValue: null};
|
|
* const returned = Utils.Merge(override, obj);
|
|
* returned == obj // => true
|
|
*
|
|
* const source = {
|
|
* abc: "def",
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|
* foo: "bar",
|
|
* list0: ["overwritten"],
|
|
* "list1+": ["appended"]
|
|
* }
|
|
* const target = {
|
|
* "xyz": "omega",
|
|
* "list0": ["should-be-gone"],
|
|
* "list1": ["should-be-kept"],
|
|
* "list2": ["should-be-untouched"]
|
|
* }
|
|
* const result = Utils.Merge(source, target)
|
|
* result.abc // => "def"
|
|
* result.foo // => "bar"
|
|
* result.xyz // => "omega"
|
|
* result.list0.length // => 1
|
|
* result.list0[0] // => "overwritten"
|
|
* result.list1.length // => 2
|
|
* result.list1[0] // => "should-be-kept"
|
|
* result.list1[1] // => "appended"
|
|
* result.list2.length // => 1
|
|
* result.list2[0] // => "should-be-untouched"
|
|
*/
|
|
static Merge<T, S>(source: Readonly<S>, target: T): T & S {
|
|
if (target === null) {
|
|
return <T & S>source
|
|
}
|
|
|
|
for (const key in source) {
|
|
if (!source.hasOwnProperty(key)) {
|
|
continue
|
|
}
|
|
if (key.startsWith("=")) {
|
|
const trimmedKey = key.substr(1)
|
|
target[trimmedKey] = source[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("+")) {
|
|
// @ts-ignore
|
|
newList = sourceV.concat(targetV)
|
|
} else {
|
|
newList = targetV.concat(sourceV)
|
|
}
|
|
|
|
target[trimmedKey] = newList
|
|
continue
|
|
}
|
|
|
|
const sourceV = source[key]
|
|
// @ts-ignore
|
|
const targetV = target[key]
|
|
if (typeof sourceV === "object") {
|
|
if (sourceV === null) {
|
|
// @ts-ignore
|
|
target[key] = null
|
|
} else if (targetV === undefined) {
|
|
// @ts-ignore
|
|
target[key] = sourceV
|
|
} else {
|
|
Utils.Merge(sourceV, targetV)
|
|
}
|
|
} else {
|
|
// @ts-ignore
|
|
target[key] = sourceV
|
|
}
|
|
}
|
|
// @ts-ignore
|
|
return target
|
|
}
|
|
|
|
/**
|
|
* Walks the specified path into the object till the end.
|
|
*
|
|
* If a list is encountered, this is transparently walked recursively on every object.
|
|
* If 'null' or 'undefined' is encountered, this method stops
|
|
*
|
|
* The leaf objects are replaced in the object itself by the specified function.
|
|
*/
|
|
public static WalkPath(
|
|
path: string[],
|
|
object: any,
|
|
replaceLeaf: (leaf: any, travelledPath: string[]) => any,
|
|
travelledPath: string[] = []
|
|
): void {
|
|
if (object == null) {
|
|
return
|
|
}
|
|
|
|
const head = path[0]
|
|
if (path.length === 1) {
|
|
// We have reached the leaf
|
|
const leaf = object[head]
|
|
if (leaf !== undefined) {
|
|
if (Array.isArray(leaf)) {
|
|
object[head] = leaf.map((o) => replaceLeaf(o, travelledPath))
|
|
} else {
|
|
object[head] = replaceLeaf(leaf, travelledPath)
|
|
if (object[head] === undefined) {
|
|
delete object[head]
|
|
}
|
|
}
|
|
}
|
|
return
|
|
}
|
|
const sub = object[head]
|
|
if (sub === undefined) {
|
|
return
|
|
}
|
|
if (typeof sub !== "object") {
|
|
return
|
|
}
|
|
if (Array.isArray(sub)) {
|
|
sub.forEach((el, i) =>
|
|
Utils.WalkPath(path.slice(1), el, replaceLeaf, [...travelledPath, head, "" + i])
|
|
)
|
|
return
|
|
}
|
|
Utils.WalkPath(path.slice(1), sub, replaceLeaf, [...travelledPath, head])
|
|
}
|
|
|
|
/**
|
|
* Walks the specified path into the object till the end.
|
|
* If a list is encountered, this is tranparently walked recursively on every object.
|
|
*
|
|
* The leaf objects are collected in the list
|
|
*/
|
|
public static CollectPath(
|
|
path: string[],
|
|
object: any,
|
|
collectedList: { leaf: any; path: string[] }[] = [],
|
|
travelledPath: string[] = []
|
|
): { leaf: any; path: string[] }[] {
|
|
if (object === undefined || object === null) {
|
|
return collectedList
|
|
}
|
|
const head = path[0]
|
|
travelledPath = [...travelledPath, head]
|
|
if (path.length === 1) {
|
|
// We have reached the leaf
|
|
const leaf = object[head]
|
|
if (leaf === undefined || leaf === null) {
|
|
return collectedList
|
|
}
|
|
if (Array.isArray(leaf)) {
|
|
for (let i = 0; i < (<any[]>leaf).length; i++) {
|
|
const l = (<any[]>leaf)[i]
|
|
collectedList.push({leaf: l, path: [...travelledPath, "" + i]})
|
|
}
|
|
} else {
|
|
collectedList.push({leaf, path: travelledPath})
|
|
}
|
|
return collectedList
|
|
}
|
|
const sub = object[head]
|
|
if (sub === undefined || sub === null) {
|
|
return collectedList
|
|
}
|
|
|
|
if (Array.isArray(sub)) {
|
|
sub.forEach((el, i) =>
|
|
Utils.CollectPath(path.slice(1), el, collectedList, [...travelledPath, "" + i])
|
|
)
|
|
return collectedList
|
|
}
|
|
if (typeof sub !== "object") {
|
|
return collectedList
|
|
}
|
|
return Utils.CollectPath(path.slice(1), sub, collectedList, travelledPath)
|
|
}
|
|
|
|
/**
|
|
* Apply a function on every leaf of the JSON; used to rewrite parts of the JSON.
|
|
* Returns a modified copy of the original object.
|
|
*
|
|
* 'null' and 'undefined' are _always_ considered a leaf, even if 'isLeaf' says it isn't
|
|
*
|
|
* Hangs if the object contains a loop
|
|
*
|
|
* // should walk a json
|
|
* const walked = Utils.WalkJson({
|
|
* key: "value"
|
|
* }, (x: string) => x + "!")
|
|
* walked // => {key: "value!"}
|
|
*
|
|
* // should preserve undefined and null:
|
|
* const walked = Utils.WalkJson({
|
|
* u: undefined,
|
|
* n: null,
|
|
* v: "value"
|
|
* }, (x) => {if(x !== undefined && x !== null){return x+"!}; return x})
|
|
* walked // => {v: "value!", u: undefined, n: null}
|
|
*
|
|
* // should preserve undefined and null, also with a negative isLeaf:
|
|
* const walked = Utils.WalkJson({
|
|
* u: undefined,
|
|
* n: null,
|
|
* v: "value"
|
|
* }, (x) => return x}, _ => false)
|
|
* walked // => {v: "value", u: undefined, n: null}
|
|
*/
|
|
static WalkJson(
|
|
json: any,
|
|
f: (v: object | number | string | boolean | undefined, path: string[]) => any,
|
|
isLeaf: (object) => boolean = undefined,
|
|
path: string[] = []
|
|
) {
|
|
if (json === undefined || json === null) {
|
|
return f(json, path)
|
|
}
|
|
const jtp = typeof json
|
|
if (isLeaf !== undefined) {
|
|
if (jtp === "object") {
|
|
if (isLeaf(json)) {
|
|
return f(json, path)
|
|
}
|
|
} else {
|
|
return json
|
|
}
|
|
} else if (jtp === "boolean" || jtp === "string" || jtp === "number") {
|
|
return f(json, path)
|
|
}
|
|
if (Array.isArray(json)) {
|
|
return json.map((sub, i) => {
|
|
return Utils.WalkJson(sub, f, isLeaf, [...path, "" + i])
|
|
})
|
|
}
|
|
|
|
const cp = {...json}
|
|
for (const key in json) {
|
|
cp[key] = Utils.WalkJson(json[key], f, isLeaf, [...path, key])
|
|
}
|
|
return cp
|
|
}
|
|
|
|
/**
|
|
* Walks an object recursively, will execute the 'collect'-callback on every leaf.
|
|
*
|
|
* Will hang on objects with loops
|
|
*/
|
|
static WalkObject(
|
|
json: any,
|
|
collect: (v: number | string | boolean | undefined, path: string[]) => any,
|
|
isLeaf: (object) => boolean = undefined,
|
|
path = []
|
|
): void {
|
|
if (json === undefined) {
|
|
return
|
|
}
|
|
const jtp = typeof json
|
|
if (isLeaf !== undefined) {
|
|
if (jtp !== "object") {
|
|
return
|
|
}
|
|
|
|
if (isLeaf(json)) {
|
|
return collect(json, path)
|
|
}
|
|
} else if (jtp === "boolean" || jtp === "string" || jtp === "number") {
|
|
collect(json, path)
|
|
return
|
|
}
|
|
if (Array.isArray(json)) {
|
|
json.map((sub, i) => {
|
|
return Utils.WalkObject(sub, collect, isLeaf, [...path, i])
|
|
})
|
|
return
|
|
}
|
|
|
|
for (const key in json) {
|
|
Utils.WalkObject(json[key], collect, isLeaf, [...path, key])
|
|
}
|
|
}
|
|
|
|
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)
|
|
}
|
|
|
|
/**
|
|
* Tries to minify the given JSON by applying some compression
|
|
*/
|
|
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 async download(url: string, headers?: any): Promise<string | undefined> {
|
|
const result = await Utils.downloadAdvanced(url, headers)
|
|
if (result["error"] !== undefined) {
|
|
throw result["error"]
|
|
}
|
|
return result["content"]
|
|
}
|
|
|
|
/**
|
|
* Download function which also indicates advanced options, such as redirects
|
|
* @param url
|
|
* @param headers
|
|
*/
|
|
public static downloadAdvanced(
|
|
url: string,
|
|
headers?: any
|
|
): Promise<
|
|
| { content: string }
|
|
| { redirect: string }
|
|
| { error: string; url: string; statuscode?: number }
|
|
> {
|
|
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({content: xhr.response})
|
|
} else if (xhr.status === 302) {
|
|
resolve({redirect: xhr.getResponseHeader("location")})
|
|
} else if (xhr.status === 509 || xhr.status === 429) {
|
|
resolve({error: "rate limited", url, statuscode: xhr.status})
|
|
} else {
|
|
resolve({
|
|
error: "other error: " + xhr.statusText,
|
|
url,
|
|
statuscode: xhr.status,
|
|
})
|
|
}
|
|
}
|
|
xhr.open("GET", url)
|
|
if (headers !== undefined) {
|
|
for (const key in headers) {
|
|
xhr.setRequestHeader(key, headers[key])
|
|
}
|
|
}
|
|
|
|
xhr.send()
|
|
xhr.onerror = reject
|
|
})
|
|
}
|
|
|
|
public static upload(url: string, data, headers?: any): Promise<string> {
|
|
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("POST", url)
|
|
if (headers !== undefined) {
|
|
for (const key in headers) {
|
|
xhr.setRequestHeader(key, headers[key])
|
|
}
|
|
}
|
|
|
|
xhr.send(data)
|
|
xhr.onerror = reject
|
|
})
|
|
}
|
|
|
|
public static async downloadJsonCached(
|
|
url: string,
|
|
maxCacheTimeMs: number,
|
|
headers?: any
|
|
): Promise<any> {
|
|
const result = await Utils.downloadJsonAdvanced(url, headers)
|
|
if (result["content"]) {
|
|
return result["content"]
|
|
}
|
|
throw result["error"]
|
|
}
|
|
|
|
public static async downloadJsonCachedAdvanced(
|
|
url: string,
|
|
maxCacheTimeMs: number,
|
|
headers?: any
|
|
): Promise<{ content: any } | { error: string; url: string; statuscode?: number }> {
|
|
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.downloadJsonAdvanced(
|
|
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 result = await Utils.downloadJsonAdvanced(url, headers)
|
|
if (result["content"]) {
|
|
return result["content"]
|
|
}
|
|
throw result["error"]
|
|
}
|
|
|
|
public static async downloadJsonAdvanced(
|
|
url: string,
|
|
headers?: any
|
|
): Promise<{ content: any } | { error: string; url: string; statuscode?: number }> {
|
|
const injected = Utils.injectedDownloads[url]
|
|
if (injected !== undefined) {
|
|
console.log("Using injected resource for test for URL", url)
|
|
return new Promise((resolve, _) => resolve({content: injected}))
|
|
}
|
|
const result = await Utils.downloadAdvanced(
|
|
url,
|
|
Utils.Merge({accept: "application/json"}, headers ?? {})
|
|
)
|
|
if (result["error"] !== undefined) {
|
|
return <{ error: string; url: string; statuscode?: number }>result
|
|
}
|
|
const data = result["content"]
|
|
try {
|
|
if (typeof data === "string") {
|
|
return {content: JSON.parse(data)}
|
|
}
|
|
return {content: data}
|
|
} catch (e) {
|
|
console.error("Could not parse ", data, "due to", e, "\n", e.stack)
|
|
return {error: "malformed", url}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Triggers a 'download file' popup which will download the contents
|
|
*/
|
|
public static offerContentsAsDownloadableFile(
|
|
contents: string | Blob,
|
|
fileName: string = "download.txt",
|
|
options?: {
|
|
mimetype:
|
|
| string
|
|
| "text/plain"
|
|
| "text/csv"
|
|
| "application/vnd.geo+json"
|
|
| "{gpx=application/gpx+xml}"
|
|
| "application/json"
|
|
| "image/png"
|
|
}
|
|
) {
|
|
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
|
|
}
|
|
|
|
/**
|
|
* Reorders an object: creates a new object where the keys have been added alphabetically
|
|
*
|
|
* const sorted = Utils.sortKeys({ x: 'x', abc: {'x': 'x', 'a': 'a'}, def: 'def'})
|
|
* JSON.stringify(sorted) // => '{"abc":{"a":"a","x":"x"},"def":"def","x":"x"}'
|
|
*/
|
|
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 preventDefaultOnMouseEvent(event: any) {
|
|
event?.originalEvent?.preventDefault()
|
|
event?.originalEvent?.stopPropagation()
|
|
event?.originalEvent?.stopImmediatePropagation()
|
|
if (event?.originalEvent) {
|
|
// This is a total workaround, as 'preventDefault' and everything above seems to be not working
|
|
event.originalEvent["dismissed"] = true
|
|
}
|
|
}
|
|
|
|
public static HomepageLink(): string {
|
|
if (typeof window === "undefined") {
|
|
return "https://mapcomplete.osm.be"
|
|
}
|
|
const path = (window.location.protocol + "//" + window.location.host + window.location.pathname).split("/")
|
|
path.pop()
|
|
path.push("index.html")
|
|
return path.join("/")
|
|
}
|
|
|
|
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 + "}")
|
|
}
|
|
|
|
/**
|
|
* Deepclone an object by serializing and deserializing it
|
|
* @param x
|
|
* @constructor
|
|
*/
|
|
static Clone<T>(x: T): T {
|
|
if (x === undefined) {
|
|
return undefined
|
|
}
|
|
return JSON.parse(JSON.stringify(x))
|
|
}
|
|
|
|
public static ParseDate(str: string): Date {
|
|
if (str.endsWith(" UTC")) {
|
|
str = str.replace(" UTC", "+00")
|
|
}
|
|
return new Date(str)
|
|
}
|
|
|
|
public static sortedByLevenshteinDistance<T>(
|
|
reference: string,
|
|
ts: T[],
|
|
getName: (t: T) => string
|
|
): T[] {
|
|
const withDistance: [T, number][] = ts.map((t) => [
|
|
t,
|
|
Utils.levenshteinDistance(getName(t), reference),
|
|
])
|
|
withDistance.sort(([_, a], [__, b]) => a - b)
|
|
return withDistance.map((n) => n[0])
|
|
}
|
|
|
|
public static levenshteinDistance(str1: string, str2: string) {
|
|
const track = Array(str2.length + 1)
|
|
.fill(null)
|
|
.map(() => Array(str1.length + 1).fill(null))
|
|
for (let i = 0; i <= str1.length; i += 1) {
|
|
track[0][i] = i
|
|
}
|
|
for (let j = 0; j <= str2.length; j += 1) {
|
|
track[j][0] = j
|
|
}
|
|
for (let j = 1; j <= str2.length; j += 1) {
|
|
for (let i = 1; i <= str1.length; i += 1) {
|
|
const indicator = str1[i - 1] === str2[j - 1] ? 0 : 1
|
|
track[j][i] = Math.min(
|
|
track[j][i - 1] + 1, // deletion
|
|
track[j - 1][i] + 1, // insertion
|
|
track[j - 1][i - 1] + indicator // substitution
|
|
)
|
|
}
|
|
}
|
|
return track[str2.length][str1.length]
|
|
}
|
|
|
|
public static MapToObj<V, T>(
|
|
d: Map<string, V>,
|
|
onValue: (t: V, key: string) => T
|
|
): Record<string, T> {
|
|
const o = {}
|
|
const keys = Array.from(d.keys())
|
|
keys.sort()
|
|
for (const key of keys) {
|
|
o[key] = onValue(d.get(key), key)
|
|
}
|
|
return o
|
|
}
|
|
|
|
/**
|
|
* Switches keys and values around
|
|
*
|
|
* Utils.TransposeMap({"a" : ["b", "c"], "x" : ["b", "y"]}) // => {"b" : ["a", "x"], "c" : ["a"], "y" : ["x"]}
|
|
*/
|
|
public static TransposeMap<K extends string, V extends string>(
|
|
d: Record<K, V[]>
|
|
): Record<V, K[]> {
|
|
const newD: Record<V, K[]> = <any>{}
|
|
|
|
for (const k in d) {
|
|
const vs = d[k]
|
|
for (let v of vs) {
|
|
const list = newD[v]
|
|
if (list === undefined) {
|
|
newD[v] = [k] // Left: indexing; right: list with one element
|
|
} else {
|
|
list.push(k)
|
|
}
|
|
}
|
|
}
|
|
return newD
|
|
}
|
|
|
|
/**
|
|
* Utils.colorAsHex({r: 255, g: 128, b: 0}) // => "#ff8000"
|
|
* Utils.colorAsHex(undefined) // => undefined
|
|
*/
|
|
public static colorAsHex(c: { r: number; g: number; b: number }) {
|
|
if (c === undefined) {
|
|
return undefined
|
|
}
|
|
|
|
function componentToHex(n) {
|
|
let hex = n.toString(16)
|
|
return hex.length == 1 ? "0" + hex : hex
|
|
}
|
|
|
|
return "#" + componentToHex(c.r) + componentToHex(c.g) + componentToHex(c.b)
|
|
}
|
|
|
|
/**
|
|
*
|
|
* Utils.color("#ff8000") // => {r: 255, g:128, b: 0}
|
|
* Utils.color(" rgba (12,34,56) ") // => {r: 12, g:34, b: 56}
|
|
* Utils.color(" rgba (12,34,56,0.5) ") // => {r: 12, g:34, b: 56}
|
|
* Utils.color(undefined) // => undefined
|
|
*/
|
|
public static color(hex: string): { r: number; g: number; b: number } {
|
|
if (hex === undefined) {
|
|
return undefined
|
|
}
|
|
hex = hex.replace(/[ \t]/g, "")
|
|
if (hex.startsWith("rgba(")) {
|
|
const match = hex.match(/rgba\(([0-9.]+),([0-9.]+),([0-9.]+)(,[0-9.]*)?\)/)
|
|
if (match == undefined) {
|
|
return undefined
|
|
}
|
|
return {r: Number(match[1]), g: Number(match[2]), b: Number(match[3])}
|
|
}
|
|
|
|
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),
|
|
}
|
|
}
|
|
|
|
public static asDict(
|
|
tags: { key: string; value: string | number }[]
|
|
): Map<string, string | number> {
|
|
const d = new Map<string, string | number>()
|
|
|
|
for (const tag of tags) {
|
|
d.set(tag.key, tag.value)
|
|
}
|
|
|
|
return d
|
|
}
|
|
|
|
static toIdRecord<T extends { id: string }>(ts: T[]): Record<string, T> {
|
|
const result: Record<string, T> = {}
|
|
for (const t of ts) {
|
|
result[t.id] = t
|
|
}
|
|
return result
|
|
}
|
|
|
|
public static SetMidnight(d: Date): void {
|
|
d.setUTCHours(0)
|
|
d.setUTCSeconds(0)
|
|
d.setUTCMilliseconds(0)
|
|
d.setUTCMinutes(0)
|
|
}
|
|
|
|
public static scrollIntoView(element: HTMLBaseElement) {
|
|
console.log("Scrolling into view:", element)
|
|
// Is the element completely in the view?
|
|
const parentRect = Utils.findParentWithScrolling(
|
|
element
|
|
).getBoundingClientRect()
|
|
const elementRect = element.getBoundingClientRect()
|
|
|
|
// Check if the element is within the vertical bounds of the parent element
|
|
const topIsVisible = elementRect.top >= parentRect.top
|
|
const bottomIsVisible = elementRect.bottom <= parentRect.bottom
|
|
const inView = topIsVisible && bottomIsVisible
|
|
if (inView) {
|
|
return
|
|
}
|
|
console.log("Actually scrolling...")
|
|
element.scrollIntoView({behavior: "smooth", block: "nearest"})
|
|
}
|
|
|
|
public static findParentWithScrolling(element: HTMLBaseElement): HTMLBaseElement {
|
|
// Check if the element itself has scrolling
|
|
if (element.scrollHeight > element.clientHeight) {
|
|
return element
|
|
}
|
|
|
|
// If the element does not have scrolling, check if it has a parent element
|
|
if (!element.parentElement) {
|
|
return null
|
|
}
|
|
|
|
// If the element has a parent, repeat the process for the parent element
|
|
return Utils.findParentWithScrolling(<HTMLBaseElement>element.parentElement)
|
|
}
|
|
|
|
/**
|
|
* Returns true if the contents of `a` are the same (and in the same order) as `b`.
|
|
* Might have false negatives in some cases
|
|
* @param a
|
|
* @param b
|
|
*/
|
|
public static sameList<T>(a: ReadonlyArray<T>, b: ReadonlyArray<T>) {
|
|
if (a == b) {
|
|
return true
|
|
}
|
|
if (a === undefined || a === null || b === undefined || b === null) {
|
|
return false
|
|
}
|
|
if (a.length !== b.length) {
|
|
return false
|
|
}
|
|
for (let i = 0; i < a.length; i++) {
|
|
let ai = a[i]
|
|
let bi = b[i]
|
|
if (ai == bi) {
|
|
continue
|
|
}
|
|
if (ai === bi) {
|
|
continue
|
|
}
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
|
|
public static SameObject(a: any, b: any) {
|
|
if (a === b) {
|
|
return true
|
|
}
|
|
if (a === undefined || a === null || b === null || b === undefined) {
|
|
return false
|
|
}
|
|
if (typeof a === "object" && typeof b === "object") {
|
|
for (const aKey in a) {
|
|
if (!(aKey in b)) {
|
|
return false
|
|
}
|
|
}
|
|
|
|
for (const bKey in b) {
|
|
if (!(bKey in a)) {
|
|
return false
|
|
}
|
|
}
|
|
for (const k in a) {
|
|
if (!Utils.SameObject(a[k], b[k])) {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
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)
|
|
}
|
|
|
|
/**
|
|
*
|
|
* Utils.splitIntoSubstitutionParts("abc") // => [{message: "abc"}]
|
|
* Utils.splitIntoSubstitutionParts("abc {search} def") // => [{message: "abc "}, {subs: "search"}, {message: " def"}]
|
|
*
|
|
*/
|
|
public static splitIntoSubstitutionParts(template: string): ({ message: string } | {subs: string})[]{
|
|
const preparts = template.split("{")
|
|
const spec : ({ message: string } | {subs: string})[] = []
|
|
for (const prepart of preparts) {
|
|
const postParts = prepart.split("}")
|
|
if(postParts.length === 1){
|
|
// This was a normal part
|
|
spec.push({message: postParts[0]})
|
|
}else{
|
|
const [subs, message] = postParts
|
|
spec.push({subs})
|
|
if(message !== ""){
|
|
spec.push({message})
|
|
}
|
|
}
|
|
}
|
|
return spec
|
|
}
|
|
}
|