feat: electron window event passing apis

Author: abose

src-electron/main-window-ipc.js

@@ -192,6 +192,29 @@ function registerWindowIpcHandlers() {
         }
     });
 
+    // Inter-window event system (mirrors Tauri's event system)
+    // Send event to a specific window by label
+    ipcMain.handle('emit-to-window', (event, targetLabel, eventName, payload) => {
+        assertTrusted(event);
+        const targetWin = windowRegistry.get(targetLabel);
+        if (targetWin && !targetWin.isDestroyed()) {
+            targetWin.webContents.send('window-event', { eventName, payload });
+            return true;
+        }
+        return false;
+    });
+
+    // Broadcast event to all windows
+    ipcMain.handle('emit-to-all-windows', (event, eventName, payload) => {
+        assertTrusted(event);
+        const senderLabel = webContentsToLabel.get(event.sender.id);
+        for (const [label, win] of windowRegistry) {
+            if (!win.isDestroyed() && label !== senderLabel) {
+                win.webContents.send('window-event', { eventName, payload });
+            }
+        }
+    });
+
     // Get process ID
     ipcMain.handle('get-process-id', (event) => {
         assertTrusted(event);

src-electron/preload.js

@@ -109,6 +109,20 @@ contextBridge.exposeInMainWorld('electronAPI', {
     quitApp: (exitCode) => ipcRenderer.invoke('quit-app', exitCode),
     focusWindow: () => ipcRenderer.invoke('focus-window'),
 
+    // Inter-window event system (mirrors Tauri's event system)
+    emitToWindow: (targetLabel, eventName, payload) => ipcRenderer.invoke('emit-to-window', targetLabel, eventName, payload),
+    emitToAllWindows: (eventName, payload) => ipcRenderer.invoke('emit-to-all-windows', eventName, payload),
+    onWindowEvent: (eventName, callback) => {
+        const handler = (event, data) => {
+            if (data.eventName === eventName) {
+                callback(data.payload);
+            }
+        };
+        ipcRenderer.on('window-event', handler);
+        // Return unlisten function (like Tauri)
+        return () => ipcRenderer.removeListener('window-event', handler);
+    },
+
     // Process and platform info
     getProcessId: () => ipcRenderer.invoke('get-process-id'),
     getPlatformArch: () => ipcRenderer.invoke('get-platform-arch'),