feat: load external search index

src/services/SearchStore.ts

@@ -56,4 +56,10 @@ export class SearchStore<T> {
   load(state: any) {
     this.searchWorker.load(state);
   }
+
+  fromExternalJS(path?: string, exportName?: string) {
+    if (path && exportName) {
+      this.searchWorker.fromExternalJS(path, exportName)
+    }
+  }
 }

src/services/SearchWorker.worker.ts

@@ -15,6 +15,7 @@ export default class Worker {
   toJS = toJS;
   load = load;
   dispose = dispose;
+  fromExternalJS = fromExternalJS;
 }
 
 export interface SearchDocument {
@@ -72,6 +73,19 @@ export async function toJS() {
   };
 }
 
+export async function fromExternalJS(path: string, exportName: string) {
+  try {
+    importScripts(path);
+    if (!self[exportName]) {
+      throw new Error('Broken index file format');
+    }
+
+    load(self[exportName]);
+  } catch (e) {
+    console.error('Failed to load search index: ' + e.message);
+  }
+}
+
 export async function load(state: any) {
   store = state.store;
   resolveIndex(lunr.Index.load(state.index));

tsconfig.json

@@ -17,7 +17,8 @@
       "es2015",
       "es2016",
       "es2017",
-      "dom"
+      "dom",
+      "WebWorker.ImportScripts"
     ],
     "jsx": "react",
     "types": [