diff options
| -rw-r--r-- | MdeModulePkg/Universal/DisplayEngineDxe/InputHandler.c | 42 |
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:
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