Merge from vscode 31e03b8ffbb218a87e3941f2b63a249f061fe0e4 (#4986)

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

@@ -0,0 +1,29 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as vscode from 'vscode';
+import { URI } from 'vs/base/common/uri';
+import { MainContext, MainThreadDiaglogsShape, IMainContext } from 'vs/workbench/api/common/extHost.protocol';
+
+export class ExtHostDialogs {
+
+	private readonly _proxy: MainThreadDiaglogsShape;
+
+	constructor(mainContext: IMainContext) {
+		this._proxy = mainContext.getProxy(MainContext.MainThreadDialogs);
+	}
+
+	showOpenDialog(options: vscode.OpenDialogOptions): Promise<URI[] | undefined> {
+		return this._proxy.$showOpenDialog(options).then(filepaths => {
+			return filepaths ? filepaths.map(URI.revive) : undefined;
+		});
+	}
+
+	showSaveDialog(options: vscode.SaveDialogOptions): Promise<URI | undefined> {
+		return this._proxy.$showSaveDialog(options).then(filepath => {
+			return filepath ? URI.revive(filepath) : undefined;
+		});
+	}
+}