fix: app close issue in phoenix

src/gui/src/helpers.js

@@ -2522,6 +2522,8 @@ window.report_app_launched = (instance_id, { uses_sdk = true }) => {
 };
 
 // Run any callbacks to say that the app has closed
+// ref(./services/ExecService.js): this is called from ExecService.js on
+//   close if the app does not use puter.js
 window.report_app_closed = (instance_id, status_code) => {
     const el_window = window.window_for_app_instance(instance_id);
 

src/gui/src/services/ExecService.js

@@ -79,6 +79,12 @@ export class ExecService extends Service {
                 // We also have to report an extra close event because the real one was sent already
                 window.report_app_closed(child_process.uuid);
             }
+
+            process.references.iframe.contentWindow.postMessage({
+                msg: 'appClosed',
+                appInstanceID: connection.forward.uuid,
+                statusCode: 0,
+            });
         });
 
         return {

src/phoenix/src/puter-shell/providers/PuterAppCommandProvider.js

@@ -18,6 +18,7 @@
  */
 import { Exit } from '../coreutils/coreutil_lib/exit.js';
 import { signals } from '../../ansi-shell/signals.js';
+import { TeePromise } from '../../promise.js';
 
 const BUILT_IN_APPS = [
     'explorer',
@@ -72,6 +73,10 @@ export class PuterAppCommandProvider {
                 ctx.shell.addEventListener('signal.window-resize', resize_listener);
 
                 // Wait for app to close.
+                // console.log('waiting for app to close (phoenix)', window, {
+                //     child_appid: child.targetAppInstanceID,
+                //     phoen_appid: puter.appInstanceID,
+                // });
                 const app_close_promise = new Promise((resolve, reject) => {
                     child.on('close', (data) => {
                         if ((data.statusCode ?? 0) != 0) {