/**
* A script library to import the javascript / css file on the fly
*
* @author Aby Dahana <abydahana@gmail.com>
* @copyright (c) Aksara Laboratory <https://aksaracms.com>
* @license MIT License
*
* This source file is subject to the MIT license that is bundled with this
* source code in the LICENSE.txt file.
*/
"use strict";
// Track already-loaded sources to prevent duplicate loading
let loaded_sources = [];
let loading_sources = {}; // Track ongoing loads as Promises
const require = (function() {
return {
js: async function(sources, callback) {
if (typeof $ === 'undefined') {
console.log('jQuery is required to use require.js()');
return;
}
if (!$.isArray(sources)) {
sources = [sources];
}
try {
// Load each source sequentially
for (const source of sources) {
if (loading_sources[source]) {
// Script is currently being loaded by another call ? wait for it
await loading_sources[source];
} else if ($.inArray(source, loaded_sources) === -1) {
// Script hasn't been loaded yet ? start loading it
loading_sources[source] = $.getScript(source).then(function() {
loaded_sources.push(source);
delete loading_sources[source];
});
await loading_sources[source];
}
// else: already loaded, just continue to next source
}
if (typeof callback === 'function') callback();
} catch (err) {
console.error('[require.js] failed to load script:', err);
}
},
css: async function(sources, callback) {
if (typeof $ === 'undefined') {
console.log('jQuery is required to use require.css()');
return;
}
if (!$.isArray(sources)) {
sources = [sources];
}
sources.forEach(function(source) {
if ($.inArray(source, loaded_sources) === -1) {
loaded_sources.push(source);
$(`<link rel="stylesheet" type="text/css" href="${source}" />`).appendTo('head');
}
});
if (typeof callback === 'function') callback();
}
};
})();
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