#4586: Clear Results feature in Notebooks (#4705)

* #4586: Clear all outputs feature

* text change

* Adding extensible method with integration tests

* Misc change

* Misc change

* Adding more logging

* Change to test

* Adding outputs confition in integration tests

src/sql/workbench/api/node/extHostNotebookEditor.ts

@@ -156,6 +156,10 @@ export class ExtHostNotebookEditor implements azdata.nb.NotebookEditor, IDisposa
 		return this._proxy.$runCell(this._id, uri);
 	}
 
+	public clearAllOutputs(): Thenable<boolean> {
+		return this._proxy.$clearAllOutputs(this._id);
+	}
+
 	public edit(callback: (editBuilder: azdata.nb.NotebookEditorEdit) => void, options?: { undoStopBefore: boolean; undoStopAfter: boolean; }): Thenable<boolean> {
 		if (this._disposed) {
 			return Promise.reject(new Error('NotebookEditor#edit not possible on closed editors'));

src/sql/workbench/api/node/mainThreadNotebookDocumentsAndEditors.ts

@@ -125,6 +125,13 @@ class MainThreadNotebookEditor extends Disposable {
 
 		return this.editor.runCell(cell);
 	}
+
+	public clearAllOutputs(): Promise<boolean> {
+		if (!this.editor) {
+			return Promise.resolve(false);
+		}
+		return this.editor.clearAllOutputs();
+	}
 }
 
 function wait(timeMs: number): Promise<void> {
@@ -359,6 +366,14 @@ export class MainThreadNotebookDocumentsAndEditors extends Disposable implements
 		return editor.runCell(cell);
 	}
 
+	$clearAllOutputs(id: string): Promise<boolean> {
+		let editor = this.getEditor(id);
+		if (!editor) {
+			return Promise.reject(disposed(`TextEditor(${id})`));
+		}
+		return editor.clearAllOutputs();
+	}
+
 	//#endregion
 
 	private async doOpenEditor(resource: UriComponents, options: INotebookShowOptions): Promise<string> {

src/sql/workbench/api/node/sqlExtHost.protocol.ts

@@ -866,6 +866,7 @@ export interface MainThreadNotebookDocumentsAndEditorsShape extends IDisposable
 	$tryShowNotebookDocument(resource: UriComponents, options: INotebookShowOptions): Promise<string>;
 	$tryApplyEdits(id: string, modelVersionId: number, edits: ISingleNotebookEditOperation[], opts: IUndoStopOptions): Promise<boolean>;
 	$runCell(id: string, cellUri: UriComponents): Promise<boolean>;
+	$clearAllOutputs(id: string): Promise<boolean>;
 }
 
 export interface ExtHostExtensionManagementShape {