feat(electron): multi tabs support (#7440)

use https://www.electronjs.org/docs/latest/api/web-contents-view to serve different tab views
added tabs view manager in electron to handle multi-view actions and events.

fix AF-1111
fix AF-999
fix PD-1459
fix AF-964
PD-1458

packages/frontend/electron/src/main/events.ts

@@ -1,4 +1,4 @@
-import { app, BrowserWindow } from 'electron';
+import { app, BrowserWindow, WebContentsView } from 'electron';
 
 import { applicationMenuEvents } from './application-menu';
 import { logger } from './logger';
@@ -21,9 +21,9 @@ export function registerEvents() {
   // register events
   for (const [namespace, namespaceEvents] of Object.entries(allEvents)) {
     for (const [key, eventRegister] of Object.entries(namespaceEvents)) {
-      const subscription = eventRegister((...args: any[]) => {
+      const unsubscribe = eventRegister((...args: any[]) => {
         const chan = `${namespace}:${key}`;
-        logger.info(
+        logger.debug(
           '[ipc-event]',
           chan,
           args.filter(
@@ -33,10 +33,31 @@ export function registerEvents() {
               typeof a !== 'object'
           )
         );
-        getActiveWindows().forEach(win => win.webContents.send(chan, ...args));
+        // is this efficient?
+        getActiveWindows().forEach(win => {
+          if (win.isDestroyed()) {
+            return;
+          }
+          // .webContents could be undefined if the window is destroyed
+          win.webContents?.send(chan, ...args);
+          win.contentView.children.forEach(child => {
+            if (
+              child instanceof WebContentsView &&
+              child.webContents &&
+              !child.webContents.isDestroyed()
+            ) {
+              child.webContents?.send(chan, ...args);
+            }
+          });
+        });
       });
       app.on('before-quit', () => {
-        subscription();
+        // subscription on quit sometimes crashes the app
+        try {
+          unsubscribe();
+        } catch (err) {
+          logger.error('unsubscribe error', err);
+        }
       });
     }
   }