fix: relaxed saveAll if no Internet connection

The previous logic has incorrectly bailed the save when there is no
Internet connection. The corrected logic disallows saving files if there
is no connection between the frontend and the backend.

Ref: cff2c95684
Closes #2079

Signed-off-by: Akos Kitta <a.kitta@arduino.cc>

arduino-ide-extension/src/browser/theia/core/application-shell.ts

@@ -8,13 +8,10 @@ import {
   TabBar,
   Widget,
 } from '@theia/core/lib/browser';
-import {
-  ConnectionStatus,
-  ConnectionStatusService,
-} from '@theia/core/lib/browser/connection-status-service';
 import { nls } from '@theia/core/lib/common/nls';
 import { MessageService } from '@theia/core/lib/common/message-service';
 import { inject, injectable } from '@theia/core/shared/inversify';
+import { ApplicationConnectionStatusContribution } from './connection-status-service';
 import { ToolbarAwareTabBar } from './tab-bars';
 
 @injectable()
@@ -22,8 +19,8 @@ export class ApplicationShell extends TheiaApplicationShell {
   @inject(MessageService)
   private readonly messageService: MessageService;
 
-  @inject(ConnectionStatusService)
-  private readonly connectionStatusService: ConnectionStatusService;
+  @inject(ApplicationConnectionStatusContribution)
+  private readonly connectionStatusService: ApplicationConnectionStatusContribution;
 
   override async addWidget(
     widget: Widget,
@@ -64,9 +61,8 @@ export class ApplicationShell extends TheiaApplicationShell {
   }
 
   override async saveAll(options?: SaveOptions): Promise<void> {
-    if (
-      this.connectionStatusService.currentStatus === ConnectionStatus.OFFLINE
-    ) {
+    // When there is no connection between the IDE2 frontend and backend.
+    if (this.connectionStatusService.offlineStatus === 'backend') {
       this.messageService.error(
         nls.localize(
           'theia/core/couldNotSave',