1 files changed, 42 insertions, 0 deletions

diff --git a/MdeModulePkg/Universal/DisplayEngineDxe/InputHandler.c b/MdeModulePkg/Universal/DisplayEngineDxe/InputHandler.c
index f70feeb55f..b6dc23476a 100644
--- a/MdeModulePkg/Universal/DisplayEngineDxe/InputHandler.c
+++ b/MdeModulePkg/Universal/DisplayEngineDxe/InputHandler.c
@@ -2,6 +2,7 @@
 Implementation for handling user input from the User Interfaces.

 

 Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>

+Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.

 SPDX-License-Identifier: BSD-2-Clause-Patent

 

 **/

@@ -1568,6 +1569,47 @@ TheKey:
 

         break;

 

+      case '^':

+        if ((TopOptionIndex > 0) && (TopOptionIndex == HighlightOptionIndex)) {

+          //

+          // Highlight reaches the top of the popup window, scroll one menu item.

+          //

+          TopOptionIndex--;

+          ShowDownArrow = TRUE;

+        }

+

+        if (TopOptionIndex == 0) {

+          ShowUpArrow = FALSE;

+        }

+

+        if (HighlightOptionIndex > 0) {

+          HighlightOptionIndex--;

+        }

+

+        break;

+

+      case 'V':

+      case 'v':

+        if (((TopOptionIndex + MenuLinesInView) < PopUpMenuLines) &&

+            (HighlightOptionIndex == (TopOptionIndex + MenuLinesInView - 1)))

+        {

+          //

+          // Highlight reaches the bottom of the popup window, scroll one menu item.

+          //

+          TopOptionIndex++;

+          ShowUpArrow = TRUE;

+        }

+

+        if ((TopOptionIndex + MenuLinesInView) == PopUpMenuLines) {

+          ShowDownArrow = FALSE;

+        }

+

+        if (HighlightOptionIndex < (PopUpMenuLines - 1)) {

+          HighlightOptionIndex++;

+        }

+

+        break;

+

       case CHAR_NULL:

         switch (Key.ScanCode) {

           case SCAN_UP: