src/vs/workbench/contrib/search/browser/searchView.ts/SearchView/showSearchWithoutFolderMessage
class SearchView:	private showSearchWithoutFolderMessage(): void {
		this.searchWithoutFolderMessageElement = this.clearMessage();

		const textEl = dom.append(this.searchWithoutFolderMessageElement,
			$('p', undefined, nls.localize('searchWithoutFolder', "You have not opened or specified a folder. Only open files are currently searched - ")));

		const openFolderButton = this.messageDisposables.add(new SearchLinkButton(
			nls.localize('openFolder', "Open Folder"),
			() => {
				this.commandService.executeCommand(env.isMacintosh && env.isNative ? OpenFileFolderAction.ID : OpenFolderAction.ID).catch(err => errors.onUnexpectedError(err));
			}));
		dom.append(textEl, openFolderButton.element);
	}