fix: open links in os browser default

Author: DGINXREAL

src/main.ts

@@ -1,4 +1,4 @@
-import { app, BrowserWindow, ipcMain } from 'electron';
+import { app, BrowserWindow, ipcMain, shell } from 'electron';
 import path from 'node:path';
 import fs from 'node:fs/promises';
 import started from 'electron-squirrel-startup';
@@ -8,6 +8,30 @@ if (started) app.quit();
 
 let notesDir: string;
 
+// Open http/https links in the user's default browser instead of navigating
+// the Electron window (or spawning an in-app browser window).
+const openExternalIfHttp = (url: string): boolean => {
+  if (/^https?:\/\//i.test(url)) {
+    void shell.openExternal(url);
+    return true;
+  }
+  return false;
+};
+
+const attachExternalLinkHandlers = (win: BrowserWindow) => {
+  win.webContents.setWindowOpenHandler(({ url }) => {
+    openExternalIfHttp(url);
+    return { action: 'deny' };
+  });
+  win.webContents.on('will-navigate', (event, url) => {
+    // Allow same-origin navigation (e.g. Vite HMR reloads); send links that
+    // point elsewhere to the default browser.
+    const currentOrigin = new URL(win.webContents.getURL() || 'about:blank').origin;
+    if (new URL(url).origin === currentOrigin) return;
+    if (openExternalIfHttp(url)) event.preventDefault();
+  });
+};
+
 const createWindow = () => {
   const mainWindow = new BrowserWindow({
     width: 1100,
@@ -17,6 +41,8 @@ const createWindow = () => {
     },
   });
 
+  attachExternalLinkHandlers(mainWindow);
+
   if (MAIN_WINDOW_VITE_DEV_SERVER_URL) {
     mainWindow.loadURL(MAIN_WINDOW_VITE_DEV_SERVER_URL);
   } else {
@@ -57,6 +83,8 @@ ipcMain.on('open-note-window', (_, noteId: string) => {
     },
   });
 
+  attachExternalLinkHandlers(win);
+
   if (MAIN_WINDOW_VITE_DEV_SERVER_URL) {
     win.loadURL(`${MAIN_WINDOW_VITE_DEV_SERVER_URL}?windowNoteId=${noteId}`);
   } else {