ionicons
Version:
Premium icons for Ionic.
32 lines (31 loc) • 1.14 kB
JavaScript
import { validateContent } from './validate';
export const ioniconContent = new Map();
const requests = new Map();
export const getSvgContent = (url, sanitize) => {
// see if we already have a request for this url
let req = requests.get(url);
if (!req) {
if (typeof fetch !== 'undefined' && typeof document !== 'undefined') {
// we don't already have a request
req = fetch(url).then((rsp) => {
if (rsp.ok) {
return rsp.text().then((svgContent) => {
if (svgContent && sanitize !== false) {
svgContent = validateContent(svgContent);
}
ioniconContent.set(url, svgContent || '');
});
}
ioniconContent.set(url, '');
});
// cache for the same requests
requests.set(url, req);
}
else {
// set to empty for ssr scenarios and resolve promise
ioniconContent.set(url, '');
return Promise.resolve();
}
}
return req;
};