feat(electron): app menu item and hotkey for creating new page (#2267)

Co-authored-by: Peng Xiao <pengxiao@outlook.com>

apps/electron/layers/main/src/events/application-menu.ts

@@ -0,0 +1,22 @@
+import { Subject } from 'rxjs';
+
+import type { MainEventListener } from './type';
+
+export const applicationMenuSubjects = {
+  newPageAction: new Subject<void>(),
+};
+
+/**
+ * Events triggered by application menu
+ */
+export const applicationMenuEvents = {
+  /**
+   * File -> New Page
+   */
+  onNewPageAction: (fn: () => void) => {
+    const sub = applicationMenuSubjects.newPageAction.subscribe(fn);
+    return () => {
+      sub.unsubscribe();
+    };
+  },
+} satisfies Record<string, MainEventListener>;

apps/electron/layers/main/src/events/index.ts

@@ -1,7 +1,9 @@
 export * from './register';
 
+import { applicationMenuSubjects } from './application-menu';
 import { dbSubjects } from './db';
 
 export const subjects = {
   db: dbSubjects,
+  applicationMenu: applicationMenuSubjects,
 };

apps/electron/layers/main/src/events/register.ts

@@ -1,12 +1,14 @@
 import { app, BrowserWindow } from 'electron';
 
 import { logger } from '../logger';
+import { applicationMenuEvents } from './application-menu';
 import { dbEvents } from './db';
 import { updaterEvents } from './updater';
 
 export const allEvents = {
   db: dbEvents,
   updater: updaterEvents,
+  applicationMenu: applicationMenuEvents,
 };
 
 function getActiveWindows() {