Layer Object Explorer; query plan; task history (#5030)

* relayer query plan, task history, object-explorer

* formatting

src/sql/workbench/parts/queryPlan/common/queryPlanInput.ts

@@ -0,0 +1,66 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { EditorInput, EditorModel } from 'vs/workbench/common/editor';
+import { UntitledEditorInput } from 'vs/workbench/common/editor/untitledEditorInput';
+import { IConnectionProfile } from 'sql/platform/connection/common/interfaces';
+import { ConnectionManagementInfo } from 'sql/platform/connection/common/connectionManagementInfo';
+
+export class QueryPlanInput extends EditorInput {
+
+	public static ID: string = 'workbench.editorinputs.queryplan';
+	public static SCHEMA: string = 'queryplan';
+
+	private _uniqueSelector: string;
+
+	constructor(private _xml: string, private _uri: string, private _connection: ConnectionManagementInfo) {
+		super();
+	}
+
+	public setUniqueSelector(uniqueSelector: string): void {
+		this._uniqueSelector = uniqueSelector;
+	}
+
+	public getTypeId(): string {
+		return UntitledEditorInput.ID;
+	}
+
+	public getName(): string {
+		return 'Query Plan';
+	}
+
+	public get planXml(): string {
+		return this._xml;
+	}
+
+	public getUri(): string {
+		return this._uri;
+	}
+
+	public supportsSplitEditor(): boolean {
+		return false;
+	}
+
+	public getConnectionProfile(): IConnectionProfile {
+		//return this._connection.connectionProfile;
+		return undefined;
+	}
+
+	public resolve(refresh?: boolean): Promise<EditorModel> {
+		return undefined;
+	}
+
+	public get hasInitialized(): boolean {
+		return !!this._uniqueSelector;
+	}
+
+	public get uniqueSelector(): string {
+		return this._uniqueSelector;
+	}
+
+	public getConnectionInfo(): ConnectionManagementInfo {
+		return this._connection;
+	}
+}