feat: Add notifications

electron/window/create-window.ts

@@ -10,6 +10,8 @@ import * as path from 'path';
 
 let mainWindow: BrowserWindow | null = null;
 
+const WINDOW_STATE_CHANGED_CHANNEL = 'window-state-changed';
+
 function getAssetPath(...segments: string[]): string {
   const basePath = app.isPackaged
     ? path.join(process.resourcesPath, 'images')
@@ -38,10 +40,23 @@ export function getDockIconPath(): string | undefined {
   return getExistingAssetPath('macos', '1024x1024.png');
 }
 
+export { getWindowIconPath };
+
 export function getMainWindow(): BrowserWindow | null {
   return mainWindow;
 }
 
+function emitWindowState(): void {
+  if (!mainWindow || mainWindow.isDestroyed()) {
+    return;
+  }
+
+  mainWindow.webContents.send(WINDOW_STATE_CHANGED_CHANNEL, {
+    isFocused: mainWindow.isFocused(),
+    isMinimized: mainWindow.isMinimized()
+  });
+}
+
 export async function createWindow(): Promise<void> {
   const windowIconPath = getWindowIconPath();
 
@@ -109,6 +124,25 @@ export async function createWindow(): Promise<void> {
     mainWindow = null;
   });
 
+  mainWindow.on('focus', () => {
+    mainWindow?.flashFrame(false);
+    emitWindowState();
+  });
+
+  mainWindow.on('blur', () => {
+    emitWindowState();
+  });
+
+  mainWindow.on('minimize', () => {
+    emitWindowState();
+  });
+
+  mainWindow.on('restore', () => {
+    emitWindowState();
+  });
+
+  emitWindowState();
+
   mainWindow.webContents.setWindowOpenHandler(({ url }) => {
     shell.openExternal(url);
     return { action: 'deny' };