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52 lines
1.3 KiB
TypeScript
52 lines
1.3 KiB
TypeScript
import Logger from '@joplin/lib/Logger';
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const logger = Logger.create('loadScript');
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export interface Script {
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id: string;
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src: string;
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attrs?: Record<string, any>;
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}
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export const loadScript = async (script: Script) => {
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return new Promise((resolve) => {
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// eslint-disable-next-line no-console
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console.info('Loading script:', script);
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let element: any = document.getElementById(script.id);
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if (element) {
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if (element.href === script.src || element.src === script.src) {
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logger.info(`Trying to load a script that has already been loaded: ${JSON.stringify(script)} - skipping it`);
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resolve(null);
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} else {
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logger.info(`Source of script has changed - reloading it: ${JSON.stringify(script)}`);
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element.parentNode.removeChild(element);
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element = null;
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}
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}
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if (script.src.indexOf('.css') >= 0) {
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element = document.createElement('link');
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element.rel = 'stylesheet';
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element.href = script.src;
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} else {
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element = document.createElement('script');
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element.src = script.src;
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if (script.attrs) {
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for (const attr in script.attrs) {
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element[attr] = script.attrs[attr];
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}
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}
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}
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element.id = script.id;
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element.onload = () => {
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resolve(null);
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};
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document.getElementsByTagName('head')[0].appendChild(element);
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});
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};
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