feat: detect multiple instances

yaagl · Mar 8, 2023 · 614d0c6 · 614d0c6
1 parent 6884cf3
commit 614d0c6
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Showing 2 changed files with 16 additions and 1 deletion.
diff --git a/src/app.tsx b/src/app.tsx
@@ -9,6 +9,9 @@ import {
   prompt,
   addTerminationHook,
   GLOBAL_onClose,
+  getKey,
+  setKey,
+  alert,
 } from "./utils";
 import { createAria2 } from "./aria2";
 import { checkWine, createWine, createWineInstallProgram } from "./wine";
@@ -20,6 +23,15 @@ import { createUpdater, downloadProgram } from "./updater";
 import { createCommonUpdateUI } from "./common-update-ui";
 
 export async function createApp() {
+  try {
+    await getKey("singleton");
+    await alert("NOTE", "LAUNCHER_ALREADY_EXISTS");
+    Neutralino.app.exit(0);
+    return () => null;
+  } catch {
+    await setKey("singleton", "1");
+  }
+
   let aria2_port = 6868;
 
   await Neutralino.events.on("ready", async () => {});

diff --git a/src/utils/neu.ts b/src/utils/neu.ts
@@ -152,7 +152,10 @@ export async function stats(path: string) {
   return await Neutralino.filesystem.getStats(path);
 }
 
-const hooks: Array<(forced: boolean) => Promise<boolean>> = [];
+const hooks: Array<(forced: boolean) => Promise<boolean>> = [async ()=>{
+  await setKey("singleton", null);
+  return true;
+}];
 
 export function addTerminationHook(fn: (forced: boolean) => Promise<boolean>) {
   hooks.push(fn);