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3bf0e510e6
This completes the migration to typescript of all the non react components code. The only changes introduced besides types are the type checks using `"something" in object` which narrows down types in typescript.
42 lines
1.2 KiB
TypeScript
42 lines
1.2 KiB
TypeScript
import npmurl from 'url'
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function loadJSON(url: string, defaultValue: any, cb: (...args: any[]) => void) {
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fetch(url, {
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mode: 'cors',
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credentials: "same-origin"
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})
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.then(function(response) {
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return response.json();
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})
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.then(function(body) {
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cb(body)
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})
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.catch(function() {
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console.warn('Can not metadata for ' + url)
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cb(defaultValue)
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})
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}
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export function downloadGlyphsMetadata(urlTemplate: string, cb: (...args: any[]) => void) {
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if(!urlTemplate) return cb([])
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// Special handling because Tileserver GL serves the fontstacks metadata differently
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// https://github.com/klokantech/tileserver-gl/pull/104#issuecomment-274444087
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let urlObj = npmurl.parse(urlTemplate);
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const normPathPart = '/%7Bfontstack%7D/%7Brange%7D.pbf';
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if(urlObj.pathname === normPathPart) {
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urlObj.pathname = '/fontstacks.json';
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} else {
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urlObj.pathname = urlObj.pathname!.replace(normPathPart, '.json');
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}
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let url = npmurl.format(urlObj);
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loadJSON(url, [], cb)
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}
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export function downloadSpriteMetadata(baseUrl: string, cb: (...args: any[]) => void) {
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if(!baseUrl) return cb([])
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const url = baseUrl + '.json'
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loadJSON(url, {}, glyphs => cb(Object.keys(glyphs)))
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}
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