jiti-meet/react/features/base/participants/preloadImage.web.js

31 lines
647 B
JavaScript

// @flow
import { isIconUrl } from './functions';
declare var config: Object;
/**
* Tries to preload an image.
*
* @param {string} src - Source of the avatar.
* @returns {Promise}
*/
export function preloadImage(src: string): Promise<string> {
if (isIconUrl(src)) {
return Promise.resolve(src);
}
if (typeof config === 'object' && config.disableThirdPartyRequests) {
return Promise.reject();
}
return new Promise((resolve, reject) => {
const image = document.createElement('img');
image.onload = () => resolve(src);
image.onerror = reject;
image.src = src;
});
}