some API proposal for open editors

src/vs/workbench/api/common/extHostEditorTabs.ts

@@ -0,0 +1,39 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import type * as vscode from 'vscode';
+import { IEditorTabDto, IExtHostEditorTabsShape } from 'vs/workbench/api/common/extHost.protocol';
+import { URI } from 'vs/base/common/uri';
+import { Emitter, Event } from 'vs/base/common/event';
+
+
+export interface IEditorTab {
+	name: string;
+	group: number;
+	resource: vscode.Uri
+}
+
+export class ExtHostEditorTabs implements IExtHostEditorTabsShape {
+
+	private readonly _onDidChangeTabs = new Emitter<void>();
+	readonly onDidChangeTabs: Event<void> = this._onDidChangeTabs.event;
+
+	private _tabs: IEditorTab[] = [];
+
+	get tabs(): readonly IEditorTab[] {
+		return this._tabs;
+	}
+
+	$acceptEditorTabs(tabs: IEditorTabDto[]): void {
+		this._tabs = tabs.map(dto => {
+			return {
+				name: dto.name,
+				group: dto.group,
+				resource: URI.revive(dto.resource)
+			};
+		});
+		this._onDidChangeTabs.fire();
+	}
+}