Add limitHit messaging to search editor.

src/vs/workbench/contrib/searchEditor/browser/searchEditor.ts

@@ -82,6 +82,7 @@ export class SearchEditor extends BaseTextEditor {
 	private messageDisposables: IDisposable[] = [];
 	private container: HTMLElement;
 	private searchModel: SearchModel;
+	private ongoingOperations: number = 0;
 
 	constructor(
 		@ITelemetryService telemetryService: ITelemetryService,
@@ -493,7 +494,14 @@ export class SearchEditor extends BaseTextEditor {
 		}
 
 		this.searchOperation.start(500);
-		await this.searchModel.search(query).finally(() => this.searchOperation.stop());
+		this.ongoingOperations++;
+		const exit = await this.searchModel.search(query).finally(() => {
+			this.ongoingOperations--;
+			if (this.ongoingOperations === 0) {
+				this.searchOperation.stop();
+			}
+		});
+
 		const input = this.getInput();
 		if (!input ||
 			input !== startInput ||
@@ -505,7 +513,7 @@ export class SearchEditor extends BaseTextEditor {
 		const controller = ReferencesController.get(this.searchResultEditor);
 		controller.closeWidget(false);
 		const labelFormatter = (uri: URI): string => this.labelService.getUriLabel(uri, { relative: true });
-		const results = serializeSearchResultForEditor(this.searchModel.searchResult, config.includes, config.excludes, config.contextLines, labelFormatter, sortOrder);
+		const results = serializeSearchResultForEditor(this.searchModel.searchResult, config.includes, config.excludes, config.contextLines, labelFormatter, sortOrder, exit?.limitHit);
 		const { body } = await input.getModels();
 		this.modelService.updateModel(body, results.text);
 		input.config = config;

src/vs/workbench/contrib/searchEditor/browser/searchEditorSerialization.ts

@@ -208,7 +208,7 @@ export const extractSearchQueryFromLines = (lines: string[]): SearchConfiguratio
 };
 
 export const serializeSearchResultForEditor =
-	(searchResult: SearchResult, rawIncludePattern: string, rawExcludePattern: string, contextLines: number, labelFormatter: (x: URI) => string, sortOrder: SearchSortOrder): { matchRanges: Range[], text: string, config: Partial<SearchConfiguration> } => {
+	(searchResult: SearchResult, rawIncludePattern: string, rawExcludePattern: string, contextLines: number, labelFormatter: (x: URI) => string, sortOrder: SearchSortOrder, limitHit?: boolean): { matchRanges: Range[], text: string, config: Partial<SearchConfiguration> } => {
 		if (!searchResult.query) { throw Error('Internal Error: Expected query, got null'); }
 		const config = contentPatternToSearchConfiguration(searchResult.query, rawIncludePattern, rawExcludePattern, contextLines);
 
@@ -219,7 +219,11 @@ export const serializeSearchResultForEditor =
 			searchResult.count()
 				? `${resultcount} - ${filecount}`
 				: localize('noResults', "No Results"),
-			''];
+		];
+		if (limitHit) {
+			info.push(localize('searchMaxResultsWarning', "The result set only contains a subset of all matches. Please be more specific in your search to narrow down the results."));
+		}
+		info.push('');
 
 		const matchComparer = (a: FileMatch | FolderMatch, b: FileMatch | FolderMatch) => searchMatchComparer(a, b, sortOrder);