aligned the title with the Java IDE.

Signed-off-by: Akos Kitta <kittaakos@typefox.io>

arduino-ide-extension/src/browser/theia/workspace/workspace-service.ts

@@ -1,11 +1,16 @@
 import { injectable, inject } from 'inversify';
-import { MessageService } from '@theia/core';
+import URI from '@theia/core/lib/common/uri';
-import { LabelProvider } from '@theia/core/lib/browser';
+import { EditorWidget } from '@theia/editor/lib/browser';
+import { LabelProvider } from '@theia/core/lib/browser/label-provider';
+import { MessageService } from '@theia/core/lib/common/message-service';
+import { ApplicationServer } from '@theia/core/lib/common/application-protocol';
+import { FrontendApplication } from '@theia/core/lib/browser/frontend-application';
+import { FocusTracker, Widget } from '@theia/core/lib/browser';
 import { WorkspaceService as TheiaWorkspaceService } from '@theia/workspace/lib/browser/workspace-service';
+import { EditorMode } from '../../editor-mode';
 import { ConfigService } from '../../../common/protocol/config-service';
 import { SketchesService } from '../../../common/protocol/sketches-service';
 import { ArduinoWorkspaceRootResolver } from '../../arduino-workspace-resolver';
-import { EditorMode } from '../../editor-mode';
 
 @injectable()
 export class WorkspaceService extends TheiaWorkspaceService {
@@ -25,7 +30,19 @@ export class WorkspaceService extends TheiaWorkspaceService {
     @inject(MessageService)
     protected readonly messageService: MessageService;
 
+    @inject(ApplicationServer)
+    protected readonly applicationServer: ApplicationServer;
+
     private workspaceUri?: Promise<string | undefined>;
+    private version?: string
+
+    async onStart(application: FrontendApplication): Promise<void> {
+        const info = await this.applicationServer.getApplicationInfo();
+        this.version = info?.version;
+        application.shell.onDidChangeCurrentWidget(this.onCurrentWidgetChange.bind(this));
+        const newValue = application.shell.currentWidget ? application.shell.currentWidget : null;
+        this.onCurrentWidgetChange({ newValue, oldValue: null });
+    }
 
     protected getDefaultWorkspaceUri(): Promise<string | undefined> {
         if (this.workspaceUri) {
@@ -74,4 +91,32 @@ export class WorkspaceService extends TheiaWorkspaceService {
         return sketchFolder;
     }
 
+    protected onCurrentWidgetChange({ newValue }: FocusTracker.IChangedArgs<Widget>): void {
+        if (newValue instanceof EditorWidget) {
+            const { uri } = newValue.editor;
+            if (uri.toString().endsWith('.ino')) {
+                this.updateTitle();
+            } else {
+                const title = this.workspaceTitle;
+                const fileName = this.labelProvider.getName(uri);
+                document.title = this.formatTitle(title ? `${title} - ${fileName}` : fileName);
+            }
+        } else {
+            this.updateTitle();
+        }
+    }
+
+    protected formatTitle(title?: string): string {
+        const version = this.version ? ` ${this.version}` : '';
+        const name = `${this.applicationName} ${version}`;
+        return title ? `${title} | ${name}` : name;
+    }
+
+    protected get workspaceTitle(): string | undefined {
+        if (this.workspace) {
+            const uri = new URI(this.workspace.uri);
+            return this.labelProvider.getName(uri);
+        }
+    }
+
 }