Update to VS Code 1.52.1

lib/vscode/src/vs/workbench/common/dialogs.ts

@@ -0,0 +1,50 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { Event, Emitter } from 'vs/base/common/event';
+import { Disposable } from 'vs/base/common/lifecycle';
+import { IDialog, IDialogResult } from 'vs/platform/dialogs/common/dialogs';
+
+export interface IDialogViewItem {
+	args: IDialog;
+	close(result?: IDialogResult): void;
+}
+
+export interface IDialogHandle {
+	item: IDialogViewItem;
+	result: Promise<IDialogResult | undefined>;
+}
+
+export interface IDialogsModel {
+	readonly onDidShowDialog: Event<void>;
+
+	readonly dialogs: IDialogViewItem[];
+
+	show(dialog: IDialog): IDialogHandle;
+}
+
+export class DialogsModel extends Disposable implements IDialogsModel {
+	readonly dialogs: IDialogViewItem[] = [];
+
+	private readonly _onDidShowDialog = this._register(new Emitter<void>());
+	readonly onDidShowDialog = this._onDidShowDialog.event;
+
+	show(dialog: IDialog): IDialogHandle {
+		let resolver: (value?: IDialogResult) => void;
+
+		const item: IDialogViewItem = {
+			args: dialog,
+			close: (result) => { this.dialogs.splice(0, 1); resolver(result); }
+		};
+
+		this.dialogs.push(item);
+		this._onDidShowDialog.fire();
+
+		return {
+			item,
+			result: new Promise(resolve => { resolver = resolve; })
+		};
+	}
+}