ohif-viewer/Packages/ohif-viewerbase/client/lib/classes/plugins/OHIFPlugin.js

62 lines
1.8 KiB
JavaScript

export class OHIFPlugin {
// TODO: this class is still under development and will
// likely change in the near future
constructor () {
this.name = "Unnamed plugin";
this.description = "No description available";
}
// load an individual script URL
static loadScript(scriptURL, type = "text/javascript") {
return new Promise((resolve, reject) => {
const script = document.createElement("script");
script.onload = resolve;
script.onerror = reject;
script.src = scriptURL;
script.type = type;
script.async = false;
const head = document.getElementsByTagName("head")[0];
head.appendChild(script);
head.removeChild(script);
});
}
// reload all the dependency scripts and also
// the main plugin script url.
static reloadPlugin(plugin) {
if (plugin.scriptURLs && plugin.scriptURLs.length) {
plugin.scriptURLs.forEach(scriptURL => {
this.loadScript(scriptURL);
});
}
// TODO: Later we should probably merge script and module URLs
if (plugin.moduleURLs && plugin.moduleURLs.length) {
plugin.moduleURLs.forEach(moduleURLs => {
this.loadScript(moduleURLs, "module");
});
}
let scriptURL = plugin.url;
if (plugin.allowCaching === false) {
scriptURL += "?" + performance.now();
}
const type = plugin.module === true ? 'module' : 'text/javascript'
this.loadScript(scriptURL, type).then(function() {
const entryPointFunction = OHIF.plugins.entryPoints[plugin.name];
if (entryPointFunction) {
entryPointFunction();
}
}, error => {
throw new Error(error);
});
}
}