midgard/MapComplete
1
0
Fork 0
forked from MapComplete/MapComplete
Code Pull requests Activity

Add support for smaller theme encodings

Browse source
This commit is contained in:
Pieter Vander Vennet 2021-04-04 03:22:56 +02:00
parent 82a097fd14
commit b108f99aab
7 changed files with 128 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

38
Utils.ts
View file

@ -10,6 +10,8 @@ export class Utils {
public static runningFromConsole = false;
public static readonly assets_path = "./assets/svg/";
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"]
static EncodeXmlValue(str) {
return str.replace(/&/g, '&')
@ -202,6 +204,42 @@ export class Utils {
return {x: Utils.lon2tile(lon, z), y: Utils.lat2tile(lat, z), z: z}
}
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 {
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;
}
private static tile2long(x, z) {
return (x / Math.pow(2, z) * 360 - 180);
}