Fix #83644 (#86619)

* Fix #83644

* correction for the PR, 24 is a constant and a comment in css

* putting the constant only in searchWidget not in constants

* forgot export keyword

* change comment in the css, as the constant is not in constant anymore

* missclick on erase export keyword, put it back

* spelling mistake correction

src/vs/workbench/contrib/search/browser/media/searchview.css

@@ -42,6 +42,7 @@
 	max-height: 134px;
 }
 
+/* NOTE: height is also used in searchWidget.ts as a constant*/
 .search-view .search-widget .monaco-inputbox > .wrapper > textarea.input {
 	overflow: initial;
 	height: 24px; /* set initial height before measure */

src/vs/workbench/contrib/search/browser/searchWidget.ts

@@ -35,6 +35,8 @@ import { IEditorOptions } from 'vs/editor/common/config/editorOptions';
 import { IAccessibilityService, AccessibilitySupport } from 'vs/platform/accessibility/common/accessibility';
 import { isMacintosh } from 'vs/base/common/platform';
 
+export const OneLineHeight = 24;
+
 export interface ISearchWidgetOptions {
 	value?: string;
 	replaceValue?: string;
@@ -80,7 +82,7 @@ const ctrlKeyMod = (isMacintosh ? KeyMod.WinCtrl : KeyMod.CtrlCmd);
 
 function stopPropagationForMultiLineUpwards(event: IKeyboardEvent, value: string, textarea: HTMLTextAreaElement | null) {
 	const isMultiline = !!value.match(/\n/);
-	if (textarea && isMultiline && textarea.selectionStart > 0) {
+	if (textarea && (isMultiline || textarea.clientHeight > OneLineHeight) && textarea.selectionStart > 0) {
 		event.stopPropagation();
 		return;
 	}
@@ -88,7 +90,7 @@ function stopPropagationForMultiLineUpwards(event: IKeyboardEvent, value: string
 
 function stopPropagationForMultiLineDownwards(event: IKeyboardEvent, value: string, textarea: HTMLTextAreaElement | null) {
 	const isMultiline = !!value.match(/\n/);
-	if (textarea && isMultiline && textarea.selectionEnd < textarea.value.length) {
+	if (textarea && (isMultiline || textarea.clientHeight > OneLineHeight) && textarea.selectionEnd < textarea.value.length) {
 		event.stopPropagation();
 		return;
 	}