3 Copyright (c) 2006, Intel Corporation
4 All rights reserved. This program and the accompanying materials
5 are licensed and made available under the terms and conditions of the BSD License
6 which accompanies this distribution. The full text of the license may be found at
7 http://opensource.org/licenses/bsd-license.php
9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
18 Implementation for UI.
41 Set Buffer to Value for Size bytes.
45 Buffer - Memory to set.
47 Size - Number of bytes to set
49 Value - Value of the set operation.
72 Initialize Menu option list.
80 InitializeListHead (&Menu
);
90 Initialize Menu option list.
98 InitializeListHead (&gMenuList
);
102 UiRemoveMenuListEntry (
103 IN UI_MENU_OPTION
*Selection
,
104 OUT UI_MENU_OPTION
**PreviousSelection
109 Remove Menu option list.
117 UI_MENU_LIST
*UiMenuList
;
119 *PreviousSelection
= AllocateZeroPool (sizeof (UI_MENU_OPTION
));
120 ASSERT (*PreviousSelection
!= NULL
);
122 if (!IsListEmpty (&gMenuList
)) {
123 UiMenuList
= CR (gMenuList
.ForwardLink
, UI_MENU_LIST
, MenuLink
, UI_MENU_LIST_SIGNATURE
);
124 (*PreviousSelection
)->IfrNumber
= UiMenuList
->Selection
.IfrNumber
;
125 (*PreviousSelection
)->FormId
= UiMenuList
->Selection
.FormId
;
126 (*PreviousSelection
)->Tags
= UiMenuList
->Selection
.Tags
;
127 (*PreviousSelection
)->ThisTag
= UiMenuList
->Selection
.ThisTag
;
128 (*PreviousSelection
)->Handle
= UiMenuList
->Selection
.Handle
;
129 gEntryNumber
= UiMenuList
->FormerEntryNumber
;
130 RemoveEntryList (&UiMenuList
->MenuLink
);
131 gBS
->FreePool (UiMenuList
);
142 Free Menu option linked list.
150 UI_MENU_LIST
*UiMenuList
;
152 while (!IsListEmpty (&gMenuList
)) {
153 UiMenuList
= CR (gMenuList
.ForwardLink
, UI_MENU_LIST
, MenuLink
, UI_MENU_LIST_SIGNATURE
);
154 RemoveEntryList (&UiMenuList
->MenuLink
);
155 gBS
->FreePool (UiMenuList
);
161 IN UI_MENU_OPTION
*Selection
166 Add one menu entry to the linked lst
174 UI_MENU_LIST
*UiMenuList
;
176 UiMenuList
= AllocateZeroPool (sizeof (UI_MENU_LIST
));
177 ASSERT (UiMenuList
!= NULL
);
179 UiMenuList
->Signature
= UI_MENU_LIST_SIGNATURE
;
180 CopyMem (&UiMenuList
->Selection
, Selection
, sizeof (UI_MENU_OPTION
));
182 InsertHeadList (&gMenuList
, &UiMenuList
->MenuLink
);
192 Free Menu option linked list.
200 UI_MENU_OPTION
*MenuOption
;
202 while (!IsListEmpty (&Menu
)) {
203 MenuOption
= CR (Menu
.ForwardLink
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
204 RemoveEntryList (&MenuOption
->Link
);
207 // We allocated space for this description when we did a GetToken, free it here
209 gBS
->FreePool (MenuOption
->Description
);
210 gBS
->FreePool (MenuOption
);
222 Refresh screen with current date and/or time based on screen context
230 CHAR16
*OptionString
;
231 MENU_REFRESH_ENTRY
*MenuRefreshEntry
;
237 if (gMenuRefreshHead
!= NULL
) {
239 MenuRefreshEntry
= gMenuRefreshHead
;
242 gST
->ConOut
->SetAttribute (gST
->ConOut
, MenuRefreshEntry
->CurrentAttribute
);
243 ProcessOptions (MenuRefreshEntry
->MenuOption
, FALSE
, MenuRefreshEntry
->FileFormTagsHead
, NULL
, &OptionString
);
245 if (OptionString
!= NULL
) {
247 // If leading spaces on OptionString - remove the spaces
249 for (Index
= 0; OptionString
[Index
] == L
' '; Index
++)
252 for (Loop
= 0; OptionString
[Index
] != CHAR_NULL
; Index
++) {
253 OptionString
[Loop
] = OptionString
[Index
];
257 OptionString
[Loop
] = CHAR_NULL
;
259 PrintStringAt (MenuRefreshEntry
->CurrentColumn
, MenuRefreshEntry
->CurrentRow
, OptionString
);
262 MenuRefreshEntry
= MenuRefreshEntry
->Next
;
264 } while (MenuRefreshEntry
!= NULL
);
267 if (OptionString
!= NULL
) {
268 gBS
->FreePool (OptionString
);
273 UiWaitForSingleEvent (
275 IN UINT64 Timeout OPTIONAL
280 Wait for a given event to fire, or for an optional timeout to expire.
283 Event - The event to wait for
285 Timeout - An optional timeout value in 100 ns units.
289 EFI_SUCCESS - Event fired before Timeout expired.
290 EFI_TIME_OUT - Timout expired before Event fired.
296 EFI_EVENT TimerEvent
;
297 EFI_EVENT WaitList
[2];
301 // Create a timer event
303 Status
= gBS
->CreateEvent (EFI_EVENT_TIMER
, 0, NULL
, NULL
, &TimerEvent
);
304 if (!EFI_ERROR (Status
)) {
306 // Set the timer event
315 // Wait for the original event or the timer
318 WaitList
[1] = TimerEvent
;
319 Status
= gBS
->WaitForEvent (2, WaitList
, &Index
);
320 gBS
->CloseEvent (TimerEvent
);
323 // If the timer expired, change the return to timed out
325 if (!EFI_ERROR (Status
) && Index
== 1) {
326 Status
= EFI_TIMEOUT
;
331 // Update screen every second
333 Timeout
= ONE_SECOND
;
336 Status
= gBS
->CreateEvent (EFI_EVENT_TIMER
, 0, NULL
, NULL
, &TimerEvent
);
339 // Set the timer event
348 // Wait for the original event or the timer
351 WaitList
[1] = TimerEvent
;
352 Status
= gBS
->WaitForEvent (2, WaitList
, &Index
);
355 // If the timer expired, update anything that needs a refresh and keep waiting
357 if (!EFI_ERROR (Status
) && Index
== 1) {
358 Status
= EFI_TIMEOUT
;
359 UpdateDateAndTime ();
362 gBS
->CloseEvent (TimerEvent
);
363 } while (Status
== EFI_TIMEOUT
);
372 IN EFI_HII_HANDLE Handle
,
380 Add one menu option by specified description and context.
383 String - String description for this option.
384 Context - Context data for entry.
390 UI_MENU_OPTION
*MenuOption
;
392 MenuOption
= AllocateZeroPool (sizeof (UI_MENU_OPTION
));
395 MenuOption
->Signature
= UI_MENU_OPTION_SIGNATURE
;
396 MenuOption
->Description
= String
;
397 MenuOption
->Handle
= Handle
;
398 MenuOption
->FormBinary
= FormBinary
;
399 MenuOption
->IfrNumber
= IfrNumber
;
400 MenuOption
->Skip
= 1;
401 MenuOption
->Tags
= Tags
;
402 MenuOption
->TagIndex
= 0;
403 MenuOption
->ThisTag
= &(MenuOption
->Tags
[MenuOption
->TagIndex
]);
404 MenuOption
->EntryNumber
= (UINT16
) IfrNumber
;
406 InsertTailList (&Menu
, &MenuOption
->Link
);
412 IN EFI_HII_HANDLE Handle
,
416 IN UINT16 MenuItemCount
421 Add one menu option by specified description and context.
424 String - String description for this option.
425 Context - Context data for entry.
431 UI_MENU_OPTION
*MenuOption
;
433 MenuOption
= AllocateZeroPool (sizeof (UI_MENU_OPTION
));
436 MenuOption
->Signature
= UI_MENU_OPTION_SIGNATURE
;
437 MenuOption
->Description
= String
;
438 MenuOption
->Handle
= Handle
;
439 MenuOption
->Skip
= Tags
[TagIndex
].NumberOfLines
;
440 MenuOption
->IfrNumber
= gActiveIfr
;
441 MenuOption
->Tags
= Tags
;
442 MenuOption
->TagIndex
= TagIndex
;
443 MenuOption
->ThisTag
= &(MenuOption
->Tags
[MenuOption
->TagIndex
]);
444 MenuOption
->Consistency
= Tags
[TagIndex
].Consistency
;
445 MenuOption
->FormId
= FormId
;
446 MenuOption
->GrayOut
= Tags
[TagIndex
].GrayOut
;
447 MenuOption
->EntryNumber
= MenuItemCount
;
449 InsertTailList (&Menu
, &MenuOption
->Link
);
454 IN UINTN NumberOfLines
,
456 IN UINTN MaximumStringSize
,
457 OUT CHAR16
*StringBuffer
,
458 OUT EFI_INPUT_KEY
*KeyValue
,
465 Routine used to abstract a generic dialog interface and return the selected key or string
468 NumberOfLines - The number of lines for the dialog box
469 HotKey - Defines whether a single character is parsed (TRUE) and returned in KeyValue
470 or a string is returned in StringBuffer. Two special characters are considered when entering a string, a SCAN_ESC and
471 an CHAR_CARRIAGE_RETURN. SCAN_ESC terminates string input and returns
472 MaximumStringSize - The maximum size in bytes of a typed in string (each character is a CHAR16) and the minimum string returned is two bytes
473 StringBuffer - The passed in pointer to the buffer which will hold the typed in string if HotKey is FALSE
474 KeyValue - The EFI_KEY value returned if HotKey is TRUE..
475 String - Pointer to the first string in the list
476 ... - A series of (quantity == NumberOfLines) text strings which will be used to construct the dialog box
479 EFI_SUCCESS - Displayed dialog and received user interaction
480 EFI_INVALID_PARAMETER - One of the parameters was invalid (e.g. (StringBuffer == NULL) && (HotKey == FALSE))
481 EFI_DEVICE_ERROR - User typed in an ESC character to exit the routine
490 CHAR16
*BufferedString
;
496 BOOLEAN SelectionComplete
;
498 UINTN CurrentAttribute
;
499 UINTN DimensionsWidth
;
500 UINTN DimensionsHeight
;
502 DimensionsWidth
= gScreenDimensions
.RightColumn
- gScreenDimensions
.LeftColumn
;
503 DimensionsHeight
= gScreenDimensions
.BottomRow
- gScreenDimensions
.TopRow
;
505 SelectionComplete
= FALSE
;
507 TempString
= AllocateZeroPool (MaximumStringSize
* 2);
508 BufferedString
= AllocateZeroPool (MaximumStringSize
* 2);
509 CurrentAttribute
= gST
->ConOut
->Mode
->Attribute
;
512 ASSERT (BufferedString
);
514 VA_START (Marker
, String
);
517 // Zero the outgoing buffer
519 ZeroMem (StringBuffer
, MaximumStringSize
);
522 if (KeyValue
== NULL
) {
523 return EFI_INVALID_PARAMETER
;
526 if (StringBuffer
== NULL
) {
527 return EFI_INVALID_PARAMETER
;
533 gST
->ConOut
->EnableCursor (gST
->ConOut
, FALSE
);
535 LargestString
= (GetStringWidth (String
) / 2);
537 if (LargestString
== L
' ') {
541 // Determine the largest string in the dialog box
542 // Notice we are starting with 1 since String is the first string
544 for (Count
= 1; Count
< NumberOfLines
; Count
++) {
545 StackString
= VA_ARG (Marker
, CHAR16
*);
547 if (StackString
[0] == L
' ') {
548 InputOffset
= Count
+ 1;
551 if ((GetStringWidth (StackString
) / 2) > LargestString
) {
553 // Size of the string visually and subtract the width by one for the null-terminator
555 LargestString
= (GetStringWidth (StackString
) / 2);
559 Start
= (DimensionsWidth
- LargestString
- 2) / 2 + gScreenDimensions
.LeftColumn
+ 1;
560 Top
= ((DimensionsHeight
- NumberOfLines
- 2) / 2) + gScreenDimensions
.TopRow
- 1;
567 CreateSharedPopUp (LargestString
, NumberOfLines
, &String
);
570 // Take the first key typed and report it back?
573 WaitForKeyStroke (&Key
);
574 CopyMem (KeyValue
, &Key
, sizeof (EFI_INPUT_KEY
));
578 WaitForKeyStroke (&Key
);
580 switch (Key
.UnicodeChar
) {
582 switch (Key
.ScanCode
) {
584 gBS
->FreePool (TempString
);
585 gBS
->FreePool (BufferedString
);
586 gST
->ConOut
->SetAttribute (gST
->ConOut
, CurrentAttribute
);
587 gST
->ConOut
->EnableCursor (gST
->ConOut
, TRUE
);
588 return EFI_DEVICE_ERROR
;
596 case CHAR_CARRIAGE_RETURN
:
597 SelectionComplete
= TRUE
;
598 gBS
->FreePool (TempString
);
599 gBS
->FreePool (BufferedString
);
600 gST
->ConOut
->SetAttribute (gST
->ConOut
, CurrentAttribute
);
601 gST
->ConOut
->EnableCursor (gST
->ConOut
, TRUE
);
606 if (StringBuffer
[0] != CHAR_NULL
) {
607 for (Index
= 0; StringBuffer
[Index
] != CHAR_NULL
; Index
++) {
608 TempString
[Index
] = StringBuffer
[Index
];
611 // Effectively truncate string by 1 character
613 TempString
[Index
- 1] = CHAR_NULL
;
614 StrCpy (StringBuffer
, TempString
);
619 // If it is the beginning of the string, don't worry about checking maximum limits
621 if ((StringBuffer
[0] == CHAR_NULL
) && (Key
.UnicodeChar
!= CHAR_BACKSPACE
)) {
622 StrnCpy (StringBuffer
, &Key
.UnicodeChar
, 1);
623 StrnCpy (TempString
, &Key
.UnicodeChar
, 1);
624 } else if ((GetStringWidth (StringBuffer
) < MaximumStringSize
) && (Key
.UnicodeChar
!= CHAR_BACKSPACE
)) {
625 KeyPad
[0] = Key
.UnicodeChar
;
626 KeyPad
[1] = CHAR_NULL
;
627 StrCat (StringBuffer
, KeyPad
);
628 StrCat (TempString
, KeyPad
);
631 // If the width of the input string is now larger than the screen, we nee to
632 // adjust the index to start printing portions of the string
634 SetUnicodeMem (BufferedString
, LargestString
, L
' ');
636 PrintStringAt (Start
+ 1, Top
+ InputOffset
, BufferedString
);
638 if ((GetStringWidth (StringBuffer
) / 2) > (DimensionsWidth
- 2)) {
639 Index
= (GetStringWidth (StringBuffer
) / 2) - DimensionsWidth
+ 2;
644 for (Count
= 0; Index
+ 1 < GetStringWidth (StringBuffer
) / 2; Index
++, Count
++) {
645 BufferedString
[Count
] = StringBuffer
[Index
];
648 PrintStringAt (Start
+ 1, Top
+ InputOffset
, BufferedString
);
651 } while (!SelectionComplete
);
654 gST
->ConOut
->SetAttribute (gST
->ConOut
, CurrentAttribute
);
655 gST
->ConOut
->EnableCursor (gST
->ConOut
, TRUE
);
661 IN UINTN RequestedWidth
,
662 IN UINTN NumberOfLines
,
663 IN CHAR16
**ArrayOfStrings
675 UINTN DimensionsWidth
;
676 UINTN DimensionsHeight
;
678 DimensionsWidth
= gScreenDimensions
.RightColumn
- gScreenDimensions
.LeftColumn
;
679 DimensionsHeight
= gScreenDimensions
.BottomRow
- gScreenDimensions
.TopRow
;
683 gST
->ConOut
->SetAttribute (gST
->ConOut
, POPUP_TEXT
| POPUP_BACKGROUND
);
685 if ((RequestedWidth
+ 2) > DimensionsWidth
) {
686 RequestedWidth
= DimensionsWidth
- 2;
689 // Subtract the PopUp width from total Columns, allow for one space extra on
690 // each end plus a border.
692 Start
= (DimensionsWidth
- RequestedWidth
- 2) / 2 + gScreenDimensions
.LeftColumn
+ 1;
693 End
= Start
+ RequestedWidth
+ 1;
695 Top
= ((DimensionsHeight
- NumberOfLines
- 2) / 2) + gScreenDimensions
.TopRow
- 1;
696 Bottom
= Top
+ NumberOfLines
+ 2;
698 Character
= (CHAR16
) BOXDRAW_DOWN_RIGHT
;
699 PrintCharAt (Start
, Top
, Character
);
700 Character
= (CHAR16
) BOXDRAW_HORIZONTAL
;
701 for (Index
= Start
; Index
+ 2 < End
; Index
++) {
702 PrintChar (Character
);
705 Character
= (CHAR16
) BOXDRAW_DOWN_LEFT
;
706 PrintChar (Character
);
707 Character
= (CHAR16
) BOXDRAW_VERTICAL
;
708 for (Index
= Top
; Index
+ 2 < Bottom
; Index
++) {
709 String
= ArrayOfStrings
[Count
];
713 // This will clear the background of the line - we never know who might have been
714 // here before us. This differs from the next clear in that it used the non-reverse
715 // video for normal printing.
717 if (GetStringWidth (String
) / 2 > 1) {
718 ClearLines (Start
, End
, Index
+ 1, Index
+ 1, POPUP_TEXT
| POPUP_BACKGROUND
);
721 // Passing in a space results in the assumption that this is where typing will occur
723 if (String
[0] == L
' ') {
724 ClearLines (Start
+ 1, End
- 1, Index
+ 1, Index
+ 1, POPUP_INVERSE_TEXT
| POPUP_INVERSE_BACKGROUND
);
727 // Passing in a NULL results in a blank space
729 if (String
[0] == CHAR_NULL
) {
730 ClearLines (Start
, End
, Index
+ 1, Index
+ 1, POPUP_TEXT
| POPUP_BACKGROUND
);
734 ((DimensionsWidth
- GetStringWidth (String
) / 2) / 2) + gScreenDimensions
.LeftColumn
+ 1,
738 gST
->ConOut
->SetAttribute (gST
->ConOut
, POPUP_TEXT
| POPUP_BACKGROUND
);
739 PrintCharAt (Start
, Index
+ 1, Character
);
740 PrintCharAt (End
- 1, Index
+ 1, Character
);
743 Character
= (CHAR16
) BOXDRAW_UP_RIGHT
;
744 PrintCharAt (Start
, Bottom
- 1, Character
);
745 Character
= (CHAR16
) BOXDRAW_HORIZONTAL
;
746 for (Index
= Start
; Index
+ 2 < End
; Index
++) {
747 PrintChar (Character
);
750 Character
= (CHAR16
) BOXDRAW_UP_LEFT
;
751 PrintChar (Character
);
756 IN UINTN RequestedWidth
,
757 IN UINTN NumberOfLines
,
758 IN CHAR16
*ArrayOfStrings
,
762 CreateSharedPopUp (RequestedWidth
, NumberOfLines
, &ArrayOfStrings
);
767 IN UINTN MessageType
,
773 STATIC BOOLEAN InputError
;
774 CHAR16
*NvUpdateMessage
;
775 CHAR16
*InputErrorMessage
;
777 NvUpdateMessage
= GetToken (STRING_TOKEN (NV_UPDATE_MESSAGE
), gHiiHandle
);
778 InputErrorMessage
= GetToken (STRING_TOKEN (INPUT_ERROR_MESSAGE
), gHiiHandle
);
780 switch (MessageType
) {
783 gST
->ConOut
->SetAttribute (gST
->ConOut
, ERROR_TEXT
);
785 gScreenDimensions
.LeftColumn
+ gPromptBlockWidth
,
786 gScreenDimensions
.BottomRow
- 1,
791 gST
->ConOut
->SetAttribute (gST
->ConOut
, FIELD_TEXT_HIGHLIGHT
);
792 for (Index
= 0; Index
< (GetStringWidth (InputErrorMessage
) - 2) / 2; Index
++) {
793 PrintAt (gScreenDimensions
.LeftColumn
+ gPromptBlockWidth
+ Index
, gScreenDimensions
.BottomRow
- 1, (CHAR16
*) L
" ");
800 case NV_UPDATE_REQUIRED
:
801 if (gClassOfVfr
!= EFI_FRONT_PAGE_SUBCLASS
) {
803 gST
->ConOut
->SetAttribute (gST
->ConOut
, INFO_TEXT
);
805 gScreenDimensions
.LeftColumn
+ gPromptBlockWidth
+ gOptionBlockWidth
,
806 gScreenDimensions
.BottomRow
- 1,
809 gResetRequired
= (BOOLEAN
) (gResetRequired
| ((Flags
& EFI_IFR_FLAG_RESET_REQUIRED
) == EFI_IFR_FLAG_RESET_REQUIRED
));
811 gNvUpdateRequired
= TRUE
;
813 gST
->ConOut
->SetAttribute (gST
->ConOut
, FIELD_TEXT_HIGHLIGHT
);
814 for (Index
= 0; Index
< (GetStringWidth (NvUpdateMessage
) - 2) / 2; Index
++) {
816 (gScreenDimensions
.LeftColumn
+ gPromptBlockWidth
+ gOptionBlockWidth
+ Index
),
817 gScreenDimensions
.BottomRow
- 1,
822 gNvUpdateRequired
= FALSE
;
827 case REFRESH_STATUS_BAR
:
829 UpdateStatusBar (INPUT_ERROR
, Flags
, TRUE
);
832 if (gNvUpdateRequired
) {
833 UpdateStatusBar (NV_UPDATE_REQUIRED
, Flags
, TRUE
);
841 gBS
->FreePool (InputErrorMessage
);
842 gBS
->FreePool (NvUpdateMessage
);
848 IN EFI_FILE_FORM_TAGS
*FileFormTagsHead
,
849 IN CHAR16
*FormattedString
,
850 IN CHAR16
*OptionString
856 Used to remove the allocated data instances
864 EFI_FILE_FORM_TAGS
*FileForm
;
865 EFI_FILE_FORM_TAGS
*PreviousFileForm
;
866 EFI_FORM_TAGS
*FormTags
;
867 EFI_FORM_TAGS
*PreviousFormTags
;
868 EFI_IFR_BINARY
*IfrBinary
;
869 EFI_IFR_BINARY
*PreviousIfrBinary
;
870 EFI_INCONSISTENCY_DATA
*Inconsistent
;
871 EFI_VARIABLE_DEFINITION
*VariableDefinition
;
872 EFI_VARIABLE_DEFINITION
*PreviousVariableDefinition
;
876 FileForm
= FileFormTagsHead
;
878 if (FormattedString
!= NULL
) {
879 gBS
->FreePool (FormattedString
);
882 if (OptionString
!= NULL
) {
883 gBS
->FreePool (OptionString
);
886 for (; FileForm
!= NULL
;) {
887 PreviousFileForm
= NULL
;
890 // Advance FileForm to the last entry
892 for (; FileForm
->NextFile
!= NULL
; FileForm
= FileForm
->NextFile
) {
893 PreviousFileForm
= FileForm
;
896 FormTags
= &FileForm
->FormTags
;
898 for (; FormTags
!= NULL
;) {
899 FormTags
= &FileForm
->FormTags
;
900 PreviousFormTags
= NULL
;
903 // Advance FormTags to the last entry
905 for (; FormTags
->Next
!= NULL
; FormTags
= FormTags
->Next
) {
906 PreviousFormTags
= FormTags
;
909 // Walk through each of the tags and free the IntList allocation
911 for (Index
= 0; FormTags
->Tags
[Index
].Operand
!= EFI_IFR_END_FORM_OP
; Index
++) {
913 // It is more than likely that the very last page will contain an end formset
915 if (FormTags
->Tags
[Index
].Operand
== EFI_IFR_END_FORM_SET_OP
) {
919 if (FormTags
->Tags
[Index
].IntList
!= NULL
) {
920 gBS
->FreePool (FormTags
->Tags
[Index
].IntList
);
924 if (PreviousFormTags
!= NULL
) {
925 gBS
->FreePool (FormTags
->Tags
);
926 FormTags
= PreviousFormTags
;
927 gBS
->FreePool (FormTags
->Next
);
928 FormTags
->Next
= NULL
;
930 gBS
->FreePool (FormTags
->Tags
);
935 // Last FileForm entry's Inconsistent database
937 Inconsistent
= FileForm
->InconsistentTags
;
940 // Advance Inconsistent to the last entry
942 for (; Inconsistent
->Next
!= NULL
; Inconsistent
= Inconsistent
->Next
)
945 for (; Inconsistent
!= NULL
;) {
947 // Preserve the Previous pointer
949 Buffer
= (VOID
*) Inconsistent
->Previous
;
952 // Free the current entry
954 gBS
->FreePool (Inconsistent
);
957 // Restore the Previous pointer
959 Inconsistent
= (EFI_INCONSISTENCY_DATA
*) Buffer
;
962 VariableDefinition
= FileForm
->VariableDefinitions
;
964 for (; VariableDefinition
!= NULL
;) {
965 VariableDefinition
= FileForm
->VariableDefinitions
;
966 PreviousVariableDefinition
= NULL
;
969 // Advance VariableDefinitions to the last entry
971 for (; VariableDefinition
->Next
!= NULL
; VariableDefinition
= VariableDefinition
->Next
) {
972 PreviousVariableDefinition
= VariableDefinition
;
975 gBS
->FreePool (VariableDefinition
->VariableName
);
976 gBS
->FreePool (VariableDefinition
->NvRamMap
);
977 gBS
->FreePool (VariableDefinition
->FakeNvRamMap
);
979 if (PreviousVariableDefinition
!= NULL
) {
980 VariableDefinition
= PreviousVariableDefinition
;
981 gBS
->FreePool (VariableDefinition
->Next
);
982 VariableDefinition
->Next
= NULL
;
984 gBS
->FreePool (VariableDefinition
);
985 VariableDefinition
= NULL
;
989 if (PreviousFileForm
!= NULL
) {
990 FileForm
= PreviousFileForm
;
991 gBS
->FreePool (FileForm
->NextFile
);
992 FileForm
->NextFile
= NULL
;
994 gBS
->FreePool (FileForm
);
999 IfrBinary
= gBinaryDataHead
;
1001 for (; IfrBinary
!= NULL
;) {
1002 IfrBinary
= gBinaryDataHead
;
1003 PreviousIfrBinary
= NULL
;
1006 // Advance IfrBinary to the last entry
1008 for (; IfrBinary
->Next
!= NULL
; IfrBinary
= IfrBinary
->Next
) {
1009 PreviousIfrBinary
= IfrBinary
;
1012 gBS
->FreePool (IfrBinary
->IfrPackage
);
1014 if (PreviousIfrBinary
!= NULL
) {
1015 IfrBinary
= PreviousIfrBinary
;
1016 gBS
->FreePool (IfrBinary
->Next
);
1017 IfrBinary
->Next
= NULL
;
1019 gBS
->FreePool (IfrBinary
);
1024 gBS
->FreePool (gPreviousValue
);
1025 gPreviousValue
= NULL
;
1028 // Free Browser Strings
1030 gBS
->FreePool (gPressEnter
);
1031 gBS
->FreePool (gConfirmError
);
1032 gBS
->FreePool (gConfirmPassword
);
1033 gBS
->FreePool (gPromptForNewPassword
);
1034 gBS
->FreePool (gPromptForPassword
);
1035 gBS
->FreePool (gToggleCheckBox
);
1036 gBS
->FreePool (gNumericInput
);
1037 gBS
->FreePool (gMakeSelection
);
1038 gBS
->FreePool (gMoveHighlight
);
1039 gBS
->FreePool (gEscapeString
);
1040 gBS
->FreePool (gEnterCommitString
);
1041 gBS
->FreePool (gEnterString
);
1042 gBS
->FreePool (gFunctionOneString
);
1043 gBS
->FreePool (gFunctionTwoString
);
1044 gBS
->FreePool (gFunctionNineString
);
1045 gBS
->FreePool (gFunctionTenString
);
1051 SelectionsAreValid (
1052 IN UI_MENU_OPTION
*MenuOption
,
1053 IN EFI_FILE_FORM_TAGS
*FileFormTagsHead
1057 Routine Description:
1058 Initiate late consistency checks against the current page.
1069 EFI_FILE_FORM_TAGS
*FileFormTags
;
1071 CHAR16 NullCharacter
;
1076 EFI_VARIABLE_DEFINITION
*VariableDefinition
;
1078 StringPtr
= (CHAR16
*) L
"\0";
1079 NullCharacter
= CHAR_NULL
;
1081 FileFormTags
= FileFormTagsHead
;
1083 for (Index
= 0; Index
< MenuOption
->IfrNumber
; Index
++) {
1084 FileFormTags
= FileFormTags
->NextFile
;
1087 for (Link
= Menu
.ForwardLink
; Link
!= &Menu
; Link
= Link
->ForwardLink
) {
1088 MenuOption
= CR (Link
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
1090 Tag
= MenuOption
->ThisTag
;
1092 ExtractRequestedNvMap (FileFormTags
, Tag
->VariableNumber
, &VariableDefinition
);
1093 NvRamMap
= (UINT16
*) &VariableDefinition
->NvRamMap
[Tag
->StorageStart
];
1096 // If the op-code has a late check, ensure consistency checks are now applied
1098 if (Tag
->Flags
& EFI_IFR_FLAG_LATE_CHECK
) {
1099 if (ValueIsNotValid (TRUE
, 0, Tag
, FileFormTags
, &PopUp
)) {
1100 if (PopUp
!= 0x0000) {
1101 StringPtr
= GetToken (PopUp
, MenuOption
->Handle
);
1103 CreatePopUp (GetStringWidth (StringPtr
) / 2, 3, &NullCharacter
, StringPtr
, &NullCharacter
);
1106 WaitForKeyStroke (&Key
);
1108 switch (Key
.UnicodeChar
) {
1110 case CHAR_CARRIAGE_RETURN
:
1112 // Since the value can be one byte long or two bytes long, do a CopyMem based on StorageWidth
1114 CopyMem (NvRamMap
, &Tag
->OldValue
, Tag
->StorageWidth
);
1115 gBS
->FreePool (StringPtr
);
1121 } while (Key
.UnicodeChar
!= CHAR_CARRIAGE_RETURN
);
1135 IN EFI_HII_HANDLE Handle
1139 Routine Description:
1140 Get the supported width for a particular op-code
1143 Tag - The Tag structure passed in.
1144 Handle - The handle in the HII database being used
1147 Returns the number of CHAR16 characters that is support.
1158 // See if the second text parameter is really NULL
1160 if ((Tag
->Operand
== EFI_IFR_TEXT_OP
) && (Tag
->TextTwo
!= 0)) {
1161 String
= GetToken (Tag
->TextTwo
, Handle
);
1162 Size
= StrLen (String
);
1163 gBS
->FreePool (String
);
1166 if ((Tag
->Operand
== EFI_IFR_SUBTITLE_OP
) ||
1167 (Tag
->Operand
== EFI_IFR_REF_OP
) ||
1168 (Tag
->Operand
== EFI_IFR_PASSWORD_OP
) ||
1169 (Tag
->Operand
== EFI_IFR_STRING_OP
) ||
1170 (Tag
->Operand
== EFI_IFR_INVENTORY_OP
) ||
1172 // Allow a wide display if text op-code and no secondary text op-code
1174 ((Tag
->Operand
== EFI_IFR_TEXT_OP
) && (Size
== 0x0000))
1176 return (UINT16
) (gPromptBlockWidth
+ gOptionBlockWidth
);
1178 return (UINT16
) gPromptBlockWidth
;
1184 IN CHAR16
*InputString
,
1185 IN UINT16 LineWidth
,
1186 IN OUT UINTN
*Index
,
1187 OUT CHAR16
**OutputString
1191 Routine Description:
1192 Will copy LineWidth amount of a string in the OutputString buffer and return the
1193 number of CHAR16 characters that were copied into the OutputString buffer.
1196 InputString - String description for this option.
1197 LineWidth - Width of the desired string to extract in CHAR16 characters
1198 Index - Where in InputString to start the copy process
1199 OutputString - Buffer to copy the string into
1202 Returns the number of CHAR16 characters that were copied into the OutputString buffer.
1207 static BOOLEAN Finished
;
1219 *OutputString
= AllocateZeroPool (((UINTN
) (LineWidth
+ 1) * 2));
1222 // Ensure we have got a valid buffer
1224 if (*OutputString
!= NULL
) {
1227 //NARROW_CHAR can not be printed in screen, so if a line only contain the two CHARs: 'NARROW_CHAR + CHAR_CARRIAGE_RETURN' , it is a empty line in Screen.
1228 //To avoid displaying this empty line in screen, just skip the two CHARs here.
1230 if ((InputString
[*Index
] == NARROW_CHAR
) && (InputString
[*Index
+ 1] == CHAR_CARRIAGE_RETURN
)) {
1231 *Index
= *Index
+ 2;
1235 // Fast-forward the string and see if there is a carriage-return in the string
1237 for (; (InputString
[*Index
+ Count2
] != CHAR_CARRIAGE_RETURN
) && (Count2
!= LineWidth
); Count2
++)
1241 // Copy the desired LineWidth of data to the output buffer.
1242 // Also make sure that we don't copy more than the string.
1243 // Also make sure that if there are linefeeds, we account for them.
1245 if ((StrSize (&InputString
[*Index
]) <= ((UINTN
) (LineWidth
+ 1) * 2)) &&
1246 (StrSize (&InputString
[*Index
]) <= ((UINTN
) (Count2
+ 1) * 2))
1249 // Convert to CHAR16 value and show that we are done with this operation
1251 LineWidth
= (UINT16
) ((StrSize (&InputString
[*Index
]) - 2) / 2);
1252 if (LineWidth
!= 0) {
1256 if (Count2
== LineWidth
) {
1258 // Rewind the string from the maximum size until we see a space to break the line
1260 for (; (InputString
[*Index
+ LineWidth
] != CHAR_SPACE
) && (LineWidth
!= 0); LineWidth
--)
1262 if (LineWidth
== 0) {
1270 CopyMem (*OutputString
, &InputString
[*Index
], LineWidth
* 2);
1273 // If currently pointing to a space, increment the index to the first non-space character
1276 (InputString
[*Index
+ LineWidth
] == CHAR_SPACE
) || (InputString
[*Index
+ LineWidth
] == CHAR_CARRIAGE_RETURN
);
1280 *Index
= (UINT16
) (*Index
+ LineWidth
);
1289 UpdateOptionSkipLines (
1290 IN EFI_IFR_DATA_ARRAY
*PageData
,
1291 IN UI_MENU_OPTION
*MenuOption
,
1292 IN EFI_FILE_FORM_TAGS
*FileFormTagsHead
,
1293 IN CHAR16
**OptionalString
,
1302 CHAR16
*OutputString
;
1303 CHAR16
*OptionString
;
1306 OptionString
= *OptionalString
;
1307 OutputString
= NULL
;
1309 ProcessOptions (MenuOption
, FALSE
, FileFormTagsHead
, PageData
, &OptionString
);
1311 if (OptionString
!= NULL
) {
1313 // If leading spaces on OptionString - remove the spaces
1315 for (Index
= 0; OptionString
[Index
] == L
' '; Index
++)
1318 for (Loop
= 0; OptionString
[Index
] != CHAR_NULL
; Index
++) {
1319 OptionString
[Loop
] = OptionString
[Index
];
1323 OptionString
[Loop
] = CHAR_NULL
;
1325 Width
= (UINT16
) gOptionBlockWidth
;
1329 for (Index
= 0; GetLineByWidth (OptionString
, Width
, &Index
, &OutputString
) != 0x0000;) {
1331 // If there is more string to process print on the next row and increment the Skip value
1333 if (StrLen (&OptionString
[Index
])) {
1334 if (SkipValue
== 0) {
1337 // Since the Number of lines for this menu entry may or may not be reflected accurately
1338 // since the prompt might be 1 lines and option might be many, and vice versa, we need to do
1339 // some testing to ensure we are keeping this in-sync.
1341 // If the difference in rows is greater than or equal to the skip value, increase the skip value
1343 if ((Row
- OriginalRow
) >= MenuOption
->Skip
) {
1349 gBS
->FreePool (OutputString
);
1350 if (SkipValue
!= 0) {
1358 *OptionalString
= OptionString
;
1361 // Search table for UiDisplayMenu()
1363 SCAN_CODE_TO_SCREEN_OPERATION gScanCodeToOperation
[] = {
1365 { SCAN_DOWN
, UiDown
},
1366 { SCAN_PAGE_UP
, UiPageUp
},
1367 { SCAN_PAGE_DOWN
, UiPageDown
},
1368 { SCAN_ESC
, UiReset
},
1369 { SCAN_F2
, UiPrevious
},
1370 { SCAN_LEFT
, UiLeft
},
1371 { SCAN_RIGHT
, UiRight
},
1372 { SCAN_F9
, UiDefault
},
1373 { SCAN_F10
, UiSave
}
1376 SCREEN_OPERATION_T0_CONTROL_FLAG gScreenOperationToControlFlag
[] = {
1377 { UiNoOperation
, CfUiNoOperation
},
1378 { UiDefault
, CfUiDefault
},
1379 { UiSelect
, CfUiSelect
},
1381 { UiDown
, CfUiDown
},
1382 { UiLeft
, CfUiLeft
},
1383 { UiRight
, CfUiRight
},
1384 { UiReset
, CfUiReset
},
1385 { UiSave
, CfUiSave
},
1386 { UiPrevious
, CfUiPrevious
},
1387 { UiPageUp
, CfUiPageUp
},
1388 { UiPageDown
, CfUiPageDown
}
1394 IN EFI_FILE_FORM_TAGS
*FileFormTagsHead
,
1395 OUT EFI_IFR_DATA_ARRAY
*PageData
1399 Routine Description:
1400 Display menu and wait for user to select one menu option, then return it.
1401 If AutoBoot is enabled, then if user doesn't select any option,
1402 after period of time, it will automatically return the first menu option.
1405 SubMenu - Indicate is sub menu.
1406 FileFormTagsHead - A pointer to the EFI_FILE_FORM_TAGS structure.
1407 PageData - A pointer to the EFI_IFR_DATA_ARRAY.
1410 Return the pointer of the menu which selected,
1411 otherwise return NULL.
1426 UINTN DataAndTimeLineNumberPad
;
1428 INT16 OriginalTimeOut
;
1432 CHAR16
*OptionString
;
1433 CHAR16
*OutputString
;
1434 CHAR16
*FormattedString
;
1441 UI_MENU_LIST
*UiMenuList
;
1445 LIST_ENTRY
*TopOfScreen
;
1446 LIST_ENTRY
*SavedListEntry
;
1447 UI_MENU_OPTION
*Selection
;
1448 UI_MENU_OPTION
*MenuOption
;
1449 UI_MENU_OPTION
*NextMenuOption
;
1450 UI_MENU_OPTION
*SavedMenuOption
;
1451 UI_MENU_OPTION
*PreviousMenuOption
;
1452 EFI_IFR_BINARY
*IfrBinary
;
1453 UI_CONTROL_FLAG ControlFlag
;
1454 EFI_SCREEN_DESCRIPTOR LocalScreen
;
1455 EFI_FILE_FORM_TAGS
*FileFormTags
;
1456 MENU_REFRESH_ENTRY
*MenuRefreshEntry
;
1457 MENU_REFRESH_ENTRY
*OldMenuRefreshEntry
;
1458 UI_SCREEN_OPERATION ScreenOperation
;
1459 EFI_VARIABLE_DEFINITION
*VariableDefinition
;
1460 EFI_FORM_CALLBACK_PROTOCOL
*FormCallback
;
1461 EFI_HII_VARIABLE_PACK_LIST
*NvMapListHead
;
1462 EFI_HII_VARIABLE_PACK_LIST
*NvMapListNode
;
1466 CopyMem (&LocalScreen
, &gScreenDimensions
, sizeof (EFI_SCREEN_DESCRIPTOR
));
1468 VariableDefinition
= NULL
;
1469 Status
= EFI_SUCCESS
;
1470 FormattedString
= NULL
;
1471 OptionString
= NULL
;
1472 ScreenOperation
= UiNoOperation
;
1474 FormCallback
= NULL
;
1475 FileFormTags
= NULL
;
1476 OutputString
= NULL
;
1481 MenuRefreshEntry
= gMenuRefreshHead
;
1482 OldMenuRefreshEntry
= gMenuRefreshHead
;
1483 NextMenuOption
= NULL
;
1484 PreviousMenuOption
= NULL
;
1485 SavedMenuOption
= NULL
;
1490 ZeroMem (&Key
, sizeof (EFI_INPUT_KEY
));
1492 if (gClassOfVfr
== EFI_FRONT_PAGE_SUBCLASS
) {
1493 TopRow
= LocalScreen
.TopRow
+ FRONT_PAGE_HEADER_HEIGHT
+ SCROLL_ARROW_HEIGHT
;
1494 Row
= LocalScreen
.TopRow
+ FRONT_PAGE_HEADER_HEIGHT
+ SCROLL_ARROW_HEIGHT
;
1496 TopRow
= LocalScreen
.TopRow
+ NONE_FRONT_PAGE_HEADER_HEIGHT
+ SCROLL_ARROW_HEIGHT
;
1497 Row
= LocalScreen
.TopRow
+ NONE_FRONT_PAGE_HEADER_HEIGHT
+ SCROLL_ARROW_HEIGHT
;
1501 Col
= LocalScreen
.LeftColumn
;
1503 Col
= LocalScreen
.LeftColumn
+ LEFT_SKIPPED_COLUMNS
;
1506 BottomRow
= LocalScreen
.BottomRow
- STATUS_BAR_HEIGHT
- FOOTER_HEIGHT
- SCROLL_ARROW_HEIGHT
- 1;
1508 TopOfScreen
= Menu
.ForwardLink
;
1513 // Get user's selection
1516 NewPos
= Menu
.ForwardLink
;
1517 gST
->ConOut
->EnableCursor (gST
->ConOut
, FALSE
);
1519 UpdateStatusBar (REFRESH_STATUS_BAR
, (UINT8
) 0, TRUE
);
1521 ControlFlag
= CfInitialization
;
1524 switch (ControlFlag
) {
1525 case CfInitialization
:
1526 ControlFlag
= CfCheckSelection
;
1527 if (gExitRequired
) {
1528 ScreenOperation
= UiReset
;
1529 ControlFlag
= CfScreenOperation
;
1530 } else if (gSaveRequired
) {
1531 ScreenOperation
= UiSave
;
1532 ControlFlag
= CfScreenOperation
;
1533 } else if (IsListEmpty (&Menu
)) {
1534 ControlFlag
= CfReadKey
;
1538 case CfCheckSelection
:
1539 if (Selection
!= NULL
) {
1540 ControlFlag
= CfExit
;
1542 ControlFlag
= CfRepaint
;
1545 FileFormTags
= FileFormTagsHead
;
1549 ControlFlag
= CfRefreshHighLight
;
1555 SavedMenuOption
= MenuOption
;
1564 LocalScreen
.LeftColumn
,
1565 LocalScreen
.RightColumn
,
1566 TopRow
- SCROLL_ARROW_HEIGHT
,
1567 BottomRow
+ SCROLL_ARROW_HEIGHT
,
1568 FIELD_TEXT
| FIELD_BACKGROUND
1571 while (gMenuRefreshHead
!= NULL
) {
1572 OldMenuRefreshEntry
= gMenuRefreshHead
->Next
;
1574 gBS
->FreePool (gMenuRefreshHead
);
1576 gMenuRefreshHead
= OldMenuRefreshEntry
;
1579 for (Link
= TopOfScreen
; Link
!= &Menu
; Link
= Link
->ForwardLink
) {
1580 MenuOption
= CR (Link
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
1581 MenuOption
->Row
= Row
;
1583 MenuOption
->Col
= Col
;
1584 MenuOption
->OptCol
= gPromptBlockWidth
+ 1 + LocalScreen
.LeftColumn
;
1587 if (MenuOption
->ThisTag
->GrayOut
) {
1588 gST
->ConOut
->SetAttribute (gST
->ConOut
, FIELD_TEXT_GRAYED
| FIELD_BACKGROUND
);
1590 if (MenuOption
->ThisTag
->Operand
== EFI_IFR_SUBTITLE_OP
) {
1591 gST
->ConOut
->SetAttribute (gST
->ConOut
, SUBTITLE_TEXT
| FIELD_BACKGROUND
);
1595 Width
= GetWidth (MenuOption
->ThisTag
, MenuOption
->Handle
);
1599 for (Index
= 0; GetLineByWidth (MenuOption
->Description
, Width
, &Index
, &OutputString
) != 0x0000;) {
1600 if ((Temp
== 0) && (Row
<= BottomRow
)) {
1601 PrintStringAt (Col
, Row
, OutputString
);
1604 // If there is more string to process print on the next row and increment the Skip value
1606 if (StrLen (&MenuOption
->Description
[Index
])) {
1612 gBS
->FreePool (OutputString
);
1622 gST
->ConOut
->SetAttribute (gST
->ConOut
, FIELD_TEXT
| FIELD_BACKGROUND
);
1623 ProcessOptions (MenuOption
, FALSE
, FileFormTagsHead
, PageData
, &OptionString
);
1625 if (OptionString
!= NULL
) {
1627 // If leading spaces on OptionString - remove the spaces
1629 for (Index
= 0; OptionString
[Index
] == L
' '; Index
++) {
1630 MenuOption
->OptCol
++;
1633 for (Count
= 0; OptionString
[Index
] != CHAR_NULL
; Index
++) {
1634 OptionString
[Count
] = OptionString
[Index
];
1638 OptionString
[Count
] = CHAR_NULL
;
1641 // If this is a date or time op-code and is used to reflect an RTC, register the op-code
1643 if ((MenuOption
->ThisTag
->Operand
== EFI_IFR_DATE_OP
||
1644 MenuOption
->ThisTag
->Operand
== EFI_IFR_TIME_OP
) &&
1645 (MenuOption
->ThisTag
->StorageStart
>= FileFormTags
->FormTags
.Tags
[0].NvDataSize
)) {
1647 if (gMenuRefreshHead
== NULL
) {
1648 MenuRefreshEntry
= AllocateZeroPool (sizeof (MENU_REFRESH_ENTRY
));
1649 ASSERT (MenuRefreshEntry
!= NULL
);
1650 MenuRefreshEntry
->MenuOption
= MenuOption
;
1651 MenuRefreshEntry
->FileFormTagsHead
= FileFormTagsHead
;
1652 MenuRefreshEntry
->CurrentColumn
= MenuOption
->OptCol
;
1653 MenuRefreshEntry
->CurrentRow
= MenuOption
->Row
;
1654 MenuRefreshEntry
->CurrentAttribute
= FIELD_TEXT
| FIELD_BACKGROUND
;
1655 gMenuRefreshHead
= MenuRefreshEntry
;
1658 // Advance to the last entry
1660 for (MenuRefreshEntry
= gMenuRefreshHead
;
1661 MenuRefreshEntry
->Next
!= NULL
;
1662 MenuRefreshEntry
= MenuRefreshEntry
->Next
1665 MenuRefreshEntry
->Next
= AllocateZeroPool (sizeof (MENU_REFRESH_ENTRY
));
1666 ASSERT (MenuRefreshEntry
->Next
!= NULL
);
1667 MenuRefreshEntry
= MenuRefreshEntry
->Next
;
1668 MenuRefreshEntry
->MenuOption
= MenuOption
;
1669 MenuRefreshEntry
->FileFormTagsHead
= FileFormTagsHead
;
1670 MenuRefreshEntry
->CurrentColumn
= MenuOption
->OptCol
;
1671 MenuRefreshEntry
->CurrentRow
= MenuOption
->Row
;
1672 MenuRefreshEntry
->CurrentAttribute
= FIELD_TEXT
| FIELD_BACKGROUND
;
1676 Width
= (UINT16
) gOptionBlockWidth
;
1680 for (Index
= 0; GetLineByWidth (OptionString
, Width
, &Index
, &OutputString
) != 0x0000;) {
1681 if ((Temp2
== 0) && (Row
<= BottomRow
)) {
1682 PrintStringAt (MenuOption
->OptCol
, Row
, OutputString
);
1685 // If there is more string to process print on the next row and increment the Skip value
1687 if (StrLen (&OptionString
[Index
])) {
1691 // Since the Number of lines for this menu entry may or may not be reflected accurately
1692 // since the prompt might be 1 lines and option might be many, and vice versa, we need to do
1693 // some testing to ensure we are keeping this in-sync.
1695 // If the difference in rows is greater than or equal to the skip value, increase the skip value
1697 if ((Row
- OriginalRow
) >= MenuOption
->Skip
) {
1703 gBS
->FreePool (OutputString
);
1713 // If this is a text op with secondary text information
1715 if ((MenuOption
->ThisTag
->Operand
== EFI_IFR_TEXT_OP
) && (MenuOption
->ThisTag
->TextTwo
!= 0)) {
1716 StringPtr
= GetToken (MenuOption
->ThisTag
->TextTwo
, MenuOption
->Handle
);
1718 Width
= (UINT16
) gOptionBlockWidth
;
1722 for (Index
= 0; GetLineByWidth (StringPtr
, Width
, &Index
, &OutputString
) != 0x0000;) {
1723 if ((Temp
== 0) && (Row
<= BottomRow
)) {
1724 PrintStringAt (MenuOption
->OptCol
, Row
, OutputString
);
1727 // If there is more string to process print on the next row and increment the Skip value
1729 if (StrLen (&StringPtr
[Index
])) {
1733 // Since the Number of lines for this menu entry may or may not be reflected accurately
1734 // since the prompt might be 1 lines and option might be many, and vice versa, we need to do
1735 // some testing to ensure we are keeping this in-sync.
1737 // If the difference in rows is greater than or equal to the skip value, increase the skip value
1739 if ((Row
- OriginalRow
) >= MenuOption
->Skip
) {
1745 gBS
->FreePool (OutputString
);
1752 gBS
->FreePool (StringPtr
);
1756 // For now, assume left-justified 72 width max setup entries
1758 PrintStringAt (Col
, Row
, MenuOption
->Description
);
1761 // Tracker 6210 - need to handle the bottom of the display
1763 if (MenuOption
->Skip
> 1) {
1764 Row
+= MenuOption
->Skip
- SkipValue
;
1767 Row
+= MenuOption
->Skip
;
1770 if (Row
> BottomRow
) {
1771 if (!ValueIsScroll (FALSE
, Link
)) {
1775 Row
= BottomRow
+ 1;
1780 if (!ValueIsScroll (TRUE
, TopOfScreen
)) {
1785 gST
->ConOut
->SetAttribute (gST
->ConOut
, ARROW_TEXT
| ARROW_BACKGROUND
);
1787 LocalScreen
.LeftColumn
+ gPromptBlockWidth
+ gOptionBlockWidth
+ 1,
1788 TopRow
- SCROLL_ARROW_HEIGHT
,
1792 gST
->ConOut
->SetAttribute (gST
->ConOut
, FIELD_TEXT
| FIELD_BACKGROUND
);
1796 gST
->ConOut
->SetAttribute (gST
->ConOut
, ARROW_TEXT
| ARROW_BACKGROUND
);
1798 LocalScreen
.LeftColumn
+ gPromptBlockWidth
+ gOptionBlockWidth
+ 1,
1799 BottomRow
+ SCROLL_ARROW_HEIGHT
,
1803 gST
->ConOut
->SetAttribute (gST
->ConOut
, FIELD_TEXT
| FIELD_BACKGROUND
);
1806 if (SavedMenuOption
!= NULL
) {
1807 MenuOption
= SavedMenuOption
;
1812 case CfRefreshHighLight
:
1813 ControlFlag
= CfUpdateHelpString
;
1815 // Repaint flag is normally reset when finish processing CfUpdateHelpString. Temporarily
1816 // reset Repaint flag because we may break halfway and skip CfUpdateHelpString processing.
1818 SavedValue
= Repaint
;
1821 if (NewPos
!= NULL
) {
1822 gST
->ConOut
->SetCursorPosition (gST
->ConOut
, MenuOption
->Col
, MenuOption
->Row
);
1824 if (gLastOpr
&& (gEntryNumber
!= -1)) {
1825 MenuOption
= CR (NewPos
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
1826 if (gEntryNumber
!= MenuOption
->EntryNumber
) {
1827 ScreenOperation
= UiDown
;
1828 ControlFlag
= CfScreenOperation
;
1835 ProcessOptions (MenuOption
, FALSE
, FileFormTagsHead
, PageData
, &OptionString
);
1836 gST
->ConOut
->SetAttribute (gST
->ConOut
, FIELD_TEXT
| FIELD_BACKGROUND
);
1837 if (OptionString
!= NULL
) {
1839 // If leading spaces on OptionString - remove the spaces
1841 for (Index
= 0; OptionString
[Index
] == L
' '; Index
++)
1844 for (Count
= 0; OptionString
[Index
] != CHAR_NULL
; Index
++) {
1845 OptionString
[Count
] = OptionString
[Index
];
1849 OptionString
[Count
] = CHAR_NULL
;
1851 Width
= (UINT16
) gOptionBlockWidth
;
1853 OriginalRow
= MenuOption
->Row
;
1855 for (Index
= 0; GetLineByWidth (OptionString
, Width
, &Index
, &OutputString
) != 0x0000;) {
1856 if (MenuOption
->Row
>= TopRow
&& MenuOption
->Row
<= BottomRow
) {
1857 PrintStringAt (MenuOption
->OptCol
, MenuOption
->Row
, OutputString
);
1860 // If there is more string to process print on the next row and increment the Skip value
1862 if (StrLen (&OptionString
[Index
])) {
1866 gBS
->FreePool (OutputString
);
1869 MenuOption
->Row
= OriginalRow
;
1872 if (MenuOption
->ThisTag
->GrayOut
) {
1873 gST
->ConOut
->SetAttribute (gST
->ConOut
, FIELD_TEXT_GRAYED
| FIELD_BACKGROUND
);
1875 if (MenuOption
->ThisTag
->Operand
== EFI_IFR_SUBTITLE_OP
) {
1876 gST
->ConOut
->SetAttribute (gST
->ConOut
, SUBTITLE_TEXT
| FIELD_BACKGROUND
);
1880 OriginalRow
= MenuOption
->Row
;
1881 Width
= GetWidth (MenuOption
->ThisTag
, MenuOption
->Handle
);
1883 for (Index
= 0; GetLineByWidth (MenuOption
->Description
, Width
, &Index
, &OutputString
) != 0x0000;) {
1884 if (MenuOption
->Row
>= TopRow
&& MenuOption
->Row
<= BottomRow
) {
1885 PrintStringAt (Col
, MenuOption
->Row
, OutputString
);
1888 // If there is more string to process print on the next row and increment the Skip value
1890 if (StrLen (&MenuOption
->Description
[Index
])) {
1894 gBS
->FreePool (OutputString
);
1897 MenuOption
->Row
= OriginalRow
;
1898 gST
->ConOut
->SetAttribute (gST
->ConOut
, FIELD_TEXT
| FIELD_BACKGROUND
);
1902 gST
->ConOut
->SetAttribute (gST
->ConOut
, FIELD_TEXT
| FIELD_BACKGROUND
);
1903 gST
->ConOut
->OutputString (gST
->ConOut
, MenuOption
->Description
);
1906 MenuOption
= CR (NewPos
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
1908 if ((gPriorMenuEntry
!= 0) && (MenuOption
->EntryNumber
!= gPriorMenuEntry
) && (NewPos
->ForwardLink
!= &Menu
)) {
1909 ScreenOperation
= UiDown
;
1910 ControlFlag
= CfScreenOperation
;
1913 gPriorMenuEntry
= 0;
1916 // This is only possible if we entered this page and the first menu option is
1917 // a "non-menu" item. In that case, force it UiDown
1919 if (MenuOption
->ThisTag
->Operand
== EFI_IFR_SUBTITLE_OP
|| MenuOption
->ThisTag
->GrayOut
) {
1921 // If we previously hit an UP command and we are still sitting on a text operation
1922 // we must continue going up
1924 if (ScreenOperation
== UiUp
) {
1925 ControlFlag
= CfScreenOperation
;
1928 ScreenOperation
= UiDown
;
1929 ControlFlag
= CfScreenOperation
;
1934 // Set reverse attribute
1936 gST
->ConOut
->SetAttribute (gST
->ConOut
, FIELD_TEXT_HIGHLIGHT
| FIELD_BACKGROUND_HIGHLIGHT
);
1937 gST
->ConOut
->SetCursorPosition (gST
->ConOut
, MenuOption
->Col
, MenuOption
->Row
);
1940 // Assuming that we have a refresh linked-list created, lets annotate the
1941 // appropriate entry that we are highlighting with its new attribute. Just prior to this
1942 // lets reset all of the entries' attribute so we do not get multiple highlights in he refresh
1944 if (gMenuRefreshHead
!= NULL
) {
1945 for (MenuRefreshEntry
= gMenuRefreshHead
; MenuRefreshEntry
!= NULL
; MenuRefreshEntry
= MenuRefreshEntry
->Next
) {
1946 MenuRefreshEntry
->CurrentAttribute
= FIELD_TEXT
| FIELD_BACKGROUND
;
1947 if (MenuRefreshEntry
->MenuOption
== MenuOption
) {
1948 MenuRefreshEntry
->CurrentAttribute
= FIELD_TEXT_HIGHLIGHT
| FIELD_BACKGROUND_HIGHLIGHT
;
1954 ProcessOptions (MenuOption
, FALSE
, FileFormTagsHead
, PageData
, &OptionString
);
1955 if (OptionString
!= NULL
) {
1957 // If leading spaces on OptionString - remove the spaces
1959 for (Index
= 0; OptionString
[Index
] == L
' '; Index
++)
1962 for (Count
= 0; OptionString
[Index
] != CHAR_NULL
; Index
++) {
1963 OptionString
[Count
] = OptionString
[Index
];
1967 OptionString
[Count
] = CHAR_NULL
;
1969 Width
= (UINT16
) gOptionBlockWidth
;
1971 OriginalRow
= MenuOption
->Row
;
1973 for (Index
= 0; GetLineByWidth (OptionString
, Width
, &Index
, &OutputString
) != 0x0000;) {
1974 if (MenuOption
->Row
>= TopRow
&& MenuOption
->Row
<= BottomRow
) {
1975 PrintStringAt (MenuOption
->OptCol
, MenuOption
->Row
, OutputString
);
1978 // If there is more string to process print on the next row and increment the Skip value
1980 if (StrLen (&OptionString
[Index
])) {
1984 gBS
->FreePool (OutputString
);
1987 MenuOption
->Row
= OriginalRow
;
1990 OriginalRow
= MenuOption
->Row
;
1992 Width
= GetWidth (MenuOption
->ThisTag
, MenuOption
->Handle
);
1994 for (Index
= 0; GetLineByWidth (MenuOption
->Description
, Width
, &Index
, &OutputString
) != 0x0000;) {
1995 if (MenuOption
->Row
>= TopRow
&& MenuOption
->Row
<= BottomRow
) {
1996 PrintStringAt (Col
, MenuOption
->Row
, OutputString
);
1999 // If there is more string to process print on the next row and increment the Skip value
2001 if (StrLen (&MenuOption
->Description
[Index
])) {
2005 gBS
->FreePool (OutputString
);
2008 MenuOption
->Row
= OriginalRow
;
2013 if (((NewPos
->ForwardLink
!= &Menu
) && (ScreenOperation
== UiDown
)) ||
2014 ((NewPos
->BackLink
!= &Menu
) && (ScreenOperation
== UiUp
)) ||
2015 (ScreenOperation
== UiNoOperation
)
2017 UpdateKeyHelp (MenuOption
, FALSE
);
2020 gST
->ConOut
->OutputString (gST
->ConOut
, MenuOption
->Description
);
2023 // Clear reverse attribute
2025 gST
->ConOut
->SetAttribute (gST
->ConOut
, FIELD_TEXT
| FIELD_BACKGROUND
);
2028 // Repaint flag will be used when process CfUpdateHelpString, so restore its value
2029 // if we didn't break halfway when process CfRefreshHighLight.
2031 Repaint
= SavedValue
;
2034 case CfUpdateHelpString
:
2035 ControlFlag
= CfPrepareToReadKey
;
2038 (Repaint
|| NewLine
||
2039 (MenuOption
->ThisTag
->Operand
== EFI_IFR_DATE_OP
) ||
2040 (MenuOption
->ThisTag
->Operand
== EFI_IFR_TIME_OP
)) &&
2041 !(gClassOfVfr
== EFI_GENERAL_APPLICATION_SUBCLASS
)) {
2043 // Don't print anything if it is a NULL help token
2045 if (MenuOption
->ThisTag
->Help
== 0x00000000) {
2046 StringPtr
= (CHAR16
*) L
"\0";
2048 StringPtr
= GetToken (MenuOption
->ThisTag
->Help
, MenuOption
->Handle
);
2051 ProcessHelpString (StringPtr
, &FormattedString
, BottomRow
- TopRow
);
2053 gST
->ConOut
->SetAttribute (gST
->ConOut
, HELP_TEXT
| FIELD_BACKGROUND
);
2055 for (Index
= 0; Index
< BottomRow
- TopRow
; Index
++) {
2057 // Pad String with spaces to simulate a clearing of the previous line
2059 for (; GetStringWidth (&FormattedString
[Index
* gHelpBlockWidth
]) / 2 < gHelpBlockWidth
;) {
2060 StrCat (&FormattedString
[Index
* gHelpBlockWidth
], (CHAR16
*) L
" ");
2064 LocalScreen
.RightColumn
- gHelpBlockWidth
,
2066 &FormattedString
[Index
* gHelpBlockWidth
]
2071 // Reset this flag every time we finish using it.
2077 case CfPrepareToReadKey
:
2078 ControlFlag
= CfReadKey
;
2080 for (Index
= 0; Index
< MenuOption
->IfrNumber
; Index
++) {
2081 FileFormTags
= FileFormTags
->NextFile
;
2084 ScreenOperation
= UiNoOperation
;
2086 Status
= gBS
->HandleProtocol (
2087 (VOID
*) (UINTN
) FileFormTags
->FormTags
.Tags
[0].CallbackHandle
,
2088 &gEfiFormCallbackProtocolGuid
,
2089 (VOID
**) &FormCallback
2095 ControlFlag
= CfScreenOperation
;
2097 OriginalTimeOut
= FrontPageTimeOutValue
;
2099 if (FrontPageTimeOutValue
>= 0 && (gClassOfVfr
== EFI_FRONT_PAGE_SUBCLASS
) && FrontPageTimeOutValue
!= (INT16
) -1) {
2101 // Remember that if set to 0, must immediately boot an option
2103 if (FrontPageTimeOutValue
== 0) {
2104 FrontPageTimeOutValue
= 0xFFFF;
2105 Status
= gST
->ConIn
->ReadKeyStroke (gST
->ConIn
, &Key
);
2106 if (EFI_ERROR (Status
)) {
2107 Status
= EFI_TIMEOUT
;
2112 Status
= UiWaitForSingleEvent (gST
->ConIn
->WaitForKey
, ONE_SECOND
);
2113 if (Status
== EFI_TIMEOUT
) {
2114 EFI_IFR_DATA_ENTRY
*DataEntry
;
2116 DataEntry
= (EFI_IFR_DATA_ENTRY
*) (PageData
+ 1);
2118 PageData
->EntryCount
= 1;
2119 Count
= (UINT32
) ((OriginalTimeOut
- FrontPageTimeOutValue
) * 100 / OriginalTimeOut
);
2120 CopyMem (&DataEntry
->Data
, &Count
, sizeof (UINT32
));
2122 if ((FormCallback
!= NULL
) && (FormCallback
->Callback
!= NULL
)) {
2123 FormCallback
->Callback (
2126 (EFI_IFR_DATA_ARRAY
*) PageData
,
2131 // Count down 1 second
2133 FrontPageTimeOutValue
--;
2136 ASSERT (!EFI_ERROR (Status
));
2137 PageData
->EntryCount
= 0;
2138 if ((FormCallback
!= NULL
) && (FormCallback
->Callback
!= NULL
)) {
2139 FormCallback
->Callback (
2142 (EFI_IFR_DATA_ARRAY
*) PageData
,
2147 FrontPageTimeOutValue
= 0xFFFF;
2151 // Wait for user's selection, no auto boot
2153 Status
= UiWaitForSingleEvent (gST
->ConIn
->WaitForKey
, 0);
2155 } while (Status
== EFI_TIMEOUT
);
2159 gST
->ConOut
->SetAttribute (gST
->ConOut
, EFI_TEXT_ATTR (EFI_LIGHTGRAY
, EFI_BLACK
));
2160 DisableQuietBoot ();
2163 if (Status
== EFI_TIMEOUT
) {
2164 Key
.UnicodeChar
= CHAR_CARRIAGE_RETURN
;
2166 Status
= gST
->ConIn
->ReadKeyStroke (gST
->ConIn
, &Key
);
2168 // if we encounter error, continue to read another key in.
2170 if (EFI_ERROR (Status
)) {
2171 ControlFlag
= CfReadKey
;
2176 switch (Key
.UnicodeChar
) {
2177 case CHAR_CARRIAGE_RETURN
:
2178 Selection
= MenuOption
;
2179 ScreenOperation
= UiSelect
;
2184 // We will push the adjustment of these numeric values directly to the input handler
2188 if ((MenuOption
->ThisTag
->Operand
== EFI_IFR_DATE_OP
) || (MenuOption
->ThisTag
->Operand
== EFI_IFR_TIME_OP
)) {
2190 if (Key
.UnicodeChar
== '+') {
2191 gDirection
= SCAN_RIGHT
;
2193 gDirection
= SCAN_LEFT
;
2196 Status
= ProcessOptions (MenuOption
, TRUE
, FileFormTagsHead
, NULL
, &OptionString
);
2201 ScreenOperation
= UiUp
;
2206 ScreenOperation
= UiDown
;
2210 if (gClassOfVfr
!= EFI_FRONT_PAGE_SUBCLASS
) {
2212 if (MenuOption
->ThisTag
->Operand
== EFI_IFR_CHECKBOX_OP
&& !(MenuOption
->ThisTag
->GrayOut
)) {
2213 gST
->ConOut
->SetCursorPosition (gST
->ConOut
, MenuOption
->Col
, MenuOption
->Row
);
2214 gST
->ConOut
->OutputString (gST
->ConOut
, MenuOption
->Description
);
2215 Selection
= MenuOption
;
2216 ScreenOperation
= UiSelect
;
2223 if (((Key
.ScanCode
== SCAN_F1
) && ((gFunctionKeySetting
& FUNCTION_ONE
) != FUNCTION_ONE
)) ||
2224 ((Key
.ScanCode
== SCAN_F2
) && ((gFunctionKeySetting
& FUNCTION_TWO
) != FUNCTION_TWO
)) ||
2225 ((Key
.ScanCode
== SCAN_F9
) && ((gFunctionKeySetting
& FUNCTION_NINE
) != FUNCTION_NINE
)) ||
2226 ((Key
.ScanCode
== SCAN_F10
) && ((gFunctionKeySetting
& FUNCTION_TEN
) != FUNCTION_TEN
))
2229 // If the function key has been disabled, just ignore the key.
2232 for (Index
= 0; Index
< sizeof (gScanCodeToOperation
) / sizeof (gScanCodeToOperation
[0]); Index
++) {
2233 if (Key
.ScanCode
== gScanCodeToOperation
[Index
].ScanCode
) {
2234 if ((Key
.ScanCode
== SCAN_F9
) || (Key
.ScanCode
== SCAN_F10
)) {
2236 ScreenOperation
= gScanCodeToOperation
[Index
].ScreenOperation
;
2239 ScreenOperation
= gScanCodeToOperation
[Index
].ScreenOperation
;
2248 case CfScreenOperation
:
2249 IfrBinary
= gBinaryDataHead
;
2252 // Advance to the Ifr we are using
2254 for (Index
= 0; Index
< gActiveIfr
; Index
++) {
2255 IfrBinary
= IfrBinary
->Next
;
2258 if (ScreenOperation
!= UiPrevious
&& ScreenOperation
!= UiReset
) {
2260 // If the screen has no menu items, and the user didn't select UiPrevious, or UiReset
2261 // ignore the selection and go back to reading keys.
2263 if (IsListEmpty (&Menu
)) {
2264 ControlFlag
= CfReadKey
;
2268 // if there is nothing logical to place a cursor on, just move on to wait for a key.
2270 for (Link
= Menu
.ForwardLink
; Link
!= &Menu
; Link
= Link
->ForwardLink
) {
2271 NextMenuOption
= CR (Link
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2272 if (!(NextMenuOption
->ThisTag
->GrayOut
) && (NextMenuOption
->ThisTag
->Operand
!= EFI_IFR_SUBTITLE_OP
)) {
2277 if (Link
== &Menu
) {
2278 ControlFlag
= CfPrepareToReadKey
;
2284 Index
< sizeof (gScreenOperationToControlFlag
) / sizeof (gScreenOperationToControlFlag
[0]);
2287 if (ScreenOperation
== gScreenOperationToControlFlag
[Index
].ScreenOperation
) {
2288 ControlFlag
= gScreenOperationToControlFlag
[Index
].ControlFlag
;
2295 ControlFlag
= CfCheckSelection
;
2297 // Check for tags that might have LATE_CHECK enabled. If they do, we can't switch pages or save NV data.
2299 if (MenuOption
!= NULL
) {
2300 if (!SelectionsAreValid (MenuOption
, FileFormTagsHead
)) {
2307 if (IsListEmpty (&gMenuList
)) {
2309 if (IsListEmpty (&Menu
)) {
2310 ControlFlag
= CfReadKey
;
2317 while (gMenuRefreshHead
!= NULL
) {
2318 OldMenuRefreshEntry
= gMenuRefreshHead
->Next
;
2320 gBS
->FreePool (gMenuRefreshHead
);
2322 gMenuRefreshHead
= OldMenuRefreshEntry
;
2325 // Remove the Cached page entry, free and init the menus, flag Selection as jumping to previous page and a valid Tag
2328 UiRemoveMenuListEntry (MenuOption
, &Selection
);
2329 Selection
->Previous
= TRUE
;
2334 gActiveIfr
= Selection
->IfrNumber
;
2338 ControlFlag
= CfCheckSelection
;
2340 ExtractRequestedNvMap (FileFormTags
, MenuOption
->ThisTag
->VariableNumber
, &VariableDefinition
);
2343 if ((MenuOption
->ThisTag
->Operand
== EFI_IFR_TEXT_OP
&&
2344 !(MenuOption
->ThisTag
->Flags
& EFI_IFR_FLAG_INTERACTIVE
)) ||
2345 (MenuOption
->ThisTag
->GrayOut
) ||
2346 (MenuOption
->ThisTag
->Operand
== EFI_IFR_DATE_OP
) ||
2347 (MenuOption
->ThisTag
->Operand
== EFI_IFR_TIME_OP
)) {
2353 UpdateKeyHelp (MenuOption
, TRUE
);
2354 Status
= ProcessOptions (MenuOption
, TRUE
, FileFormTagsHead
, PageData
, &OptionString
);
2356 if (EFI_ERROR (Status
)) {
2362 if (OptionString
!= NULL
) {
2363 PrintStringAt (LocalScreen
.LeftColumn
+ gPromptBlockWidth
+ 1, MenuOption
->Row
, OptionString
);
2366 if (MenuOption
->ThisTag
->Flags
& EFI_IFR_FLAG_INTERACTIVE
) {
2367 Selection
= MenuOption
;
2370 if (Selection
== NULL
) {
2374 Location
= (UINT8
*) &PageData
->EntryCount
;
2377 // If not a goto, dump single piece of data, otherwise dump everything
2379 if (Selection
->ThisTag
->Operand
== EFI_IFR_REF_OP
) {
2381 // Check for tags that might have LATE_CHECK enabled. If they do, we can't switch pages or save NV data.
2383 if (!SelectionsAreValid (MenuOption
, FileFormTagsHead
)) {
2389 UiAddMenuListEntry (Selection
);
2390 gPriorMenuEntry
= 0;
2393 // Now that we added a menu entry specific to a goto, we can always go back when someone hits the UiPrevious
2395 UiMenuList
= CR (gMenuList
.ForwardLink
, UI_MENU_LIST
, MenuLink
, UI_MENU_LIST_SIGNATURE
);
2396 UiMenuList
->FormerEntryNumber
= MenuOption
->EntryNumber
;
2401 // Rewind to the beginning of the menu
2403 for (; NewPos
->BackLink
!= &Menu
; NewPos
= NewPos
->BackLink
)
2407 // Get Total Count of Menu entries
2409 for (Count
= 1; NewPos
->ForwardLink
!= &Menu
; NewPos
= NewPos
->ForwardLink
) {
2413 // Rewind to the beginning of the menu
2415 for (; NewPos
->BackLink
!= &Menu
; NewPos
= NewPos
->BackLink
)
2419 // Copy the number of entries being described to the PageData location
2421 CopyMem (&Location
[0], &Count
, sizeof (UINT32
));
2423 for (Index
= 4; NewPos
->ForwardLink
!= &Menu
; Index
= Index
+ MenuOption
->ThisTag
->StorageWidth
+ 2) {
2425 MenuOption
= CR (NewPos
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2426 Location
[Index
] = MenuOption
->ThisTag
->Operand
;
2427 Location
[Index
+ 1] = (UINT8
) (MenuOption
->ThisTag
->StorageWidth
+ 4);
2429 &Location
[Index
+ 4],
2430 &VariableDefinition
->NvRamMap
[MenuOption
->ThisTag
->StorageStart
],
2431 MenuOption
->ThisTag
->StorageWidth
2433 NewPos
= NewPos
->ForwardLink
;
2437 gPriorMenuEntry
= MenuOption
->EntryNumber
;
2442 // Copy the number of entries being described to the PageData location
2444 CopyMem (&Location
[0], &Count
, sizeof (UINT32
));
2447 // Start at PageData[4] since the EntryCount is a UINT32
2452 // Copy data to destination
2454 Location
[Index
] = MenuOption
->ThisTag
->Operand
;
2455 Location
[Index
+ 1] = (UINT8
) (MenuOption
->ThisTag
->StorageWidth
+ 4);
2457 &Location
[Index
+ 4],
2458 &VariableDefinition
->NvRamMap
[MenuOption
->ThisTag
->StorageStart
],
2459 MenuOption
->ThisTag
->StorageWidth
2466 ControlFlag
= CfCheckSelection
;
2468 if (gClassOfVfr
== EFI_FRONT_PAGE_SUBCLASS
) {
2472 // If NV flag is up, prompt user
2474 if (gNvUpdateRequired
) {
2475 Status
= gST
->ConIn
->ReadKeyStroke (gST
->ConIn
, &Key
);
2477 YesResponse
= gYesResponse
[0];
2478 NoResponse
= gNoResponse
[0];
2481 CreateDialog (3, TRUE
, 0, NULL
, &Key
, gEmptyString
, gAreYouSure
, gEmptyString
);
2484 (Key
.ScanCode
!= SCAN_ESC
) &&
2485 ((Key
.UnicodeChar
| UPPER_LOWER_CASE_OFFSET
) != (NoResponse
| UPPER_LOWER_CASE_OFFSET
)) &&
2486 ((Key
.UnicodeChar
| UPPER_LOWER_CASE_OFFSET
) != (YesResponse
| UPPER_LOWER_CASE_OFFSET
))
2490 // If the user hits the YesResponse key
2492 if ((Key
.UnicodeChar
| UPPER_LOWER_CASE_OFFSET
) == (YesResponse
| UPPER_LOWER_CASE_OFFSET
)) {
2500 // Check for tags that might have LATE_CHECK enabled. If they do, we can't switch pages or save NV data.
2502 if (MenuOption
!= NULL
) {
2503 if (!SelectionsAreValid (MenuOption
, FileFormTagsHead
)) {
2511 gST
->ConOut
->SetAttribute (gST
->ConOut
, EFI_TEXT_ATTR (EFI_LIGHTGRAY
, EFI_BLACK
));
2512 gST
->ConOut
->EnableCursor (gST
->ConOut
, TRUE
);
2516 gST
->ConOut
->ClearScreen (gST
->ConOut
);
2520 UpdateStatusBar (INPUT_ERROR
, MenuOption
->ThisTag
->Flags
, FALSE
);
2521 UpdateStatusBar (NV_UPDATE_REQUIRED
, MenuOption
->ThisTag
->Flags
, FALSE
);
2523 if (IfrBinary
->UnRegisterOnExit
) {
2524 Hii
->RemovePack (Hii
, MenuOption
->Handle
);
2530 // Clean up the allocated data buffers
2532 FreeData (FileFormTagsHead
, FormattedString
, OptionString
);
2534 gST
->ConOut
->ClearScreen (gST
->ConOut
);
2538 ControlFlag
= CfCheckSelection
;
2539 if ((MenuOption
->ThisTag
->Operand
== EFI_IFR_DATE_OP
) || (MenuOption
->ThisTag
->Operand
== EFI_IFR_TIME_OP
)) {
2540 if (MenuOption
->Skip
== 1) {
2542 // In the tail of the Date/Time op-code set, go left.
2544 NewPos
= NewPos
->BackLink
;
2547 // In the middle of the Data/Time op-code set, go left.
2549 NextMenuOption
= CR (NewPos
->ForwardLink
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2550 if (NextMenuOption
->Skip
== 1) {
2551 NewPos
= NewPos
->BackLink
;
2558 ControlFlag
= CfCheckSelection
;
2559 if ((MenuOption
->Skip
== 0) &&
2560 ((MenuOption
->ThisTag
->Operand
== EFI_IFR_DATE_OP
) || (MenuOption
->ThisTag
->Operand
== EFI_IFR_TIME_OP
))
2563 // We are in the head or middle of the Date/Time op-code set, advance right.
2565 NewPos
= NewPos
->ForwardLink
;
2570 ControlFlag
= CfCheckSelection
;
2572 if (NewPos
->BackLink
!= &Menu
) {
2575 // Adjust Date/Time position before we advance forward.
2577 AdjustDateAndTimePosition (TRUE
, &NewPos
);
2580 // Caution that we have already rewind to the top, don't go backward in this situation.
2582 if (NewPos
->BackLink
!= &Menu
) {
2583 NewPos
= NewPos
->BackLink
;
2586 PreviousMenuOption
= CR (NewPos
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2589 // Since the behavior of hitting the up arrow on a Date/Time op-code is intended
2590 // to be one that back to the previous set of op-codes, we need to advance to the sencond
2591 // Date/Time op-code and leave the remaining logic in UiDown intact so the appropriate
2592 // checking can be done.
2594 DataAndTimeLineNumberPad
= AdjustDateAndTimePosition (TRUE
, &NewPos
);
2598 // If the previous MenuOption contains a display-only op-code, skip to the next one
2600 if (PreviousMenuOption
->ThisTag
->Operand
== EFI_IFR_SUBTITLE_OP
|| PreviousMenuOption
->ThisTag
->GrayOut
) {
2602 // This is ok as long as not at the end of the list
2604 if (NewPos
->BackLink
== &Menu
) {
2606 // If we are at the start of the list, then this list must start with a display only
2607 // piece of data, so do not allow the backward motion
2609 ScreenOperation
= UiDown
;
2611 if (PreviousMenuOption
->Row
<= TopRow
) {
2612 if (TopOfScreen
->BackLink
!= &Menu
) {
2613 TopOfScreen
= TopOfScreen
->BackLink
;
2618 UpdateStatusBar (INPUT_ERROR
, PreviousMenuOption
->ThisTag
->Flags
, FALSE
);
2624 // Check the previous menu entry to see if it was a zero-length advance. If it was,
2625 // don't worry about a redraw.
2627 if ((MenuOption
->Row
- PreviousMenuOption
->Skip
- DataAndTimeLineNumberPad
< TopRow
) ||
2628 (PreviousMenuOption
->Skip
> MenuOption
->Row
)
2631 if (TopOfScreen
->BackLink
== &Menu
) {
2638 // Is the current top of screen a zero-advance op-code?
2639 // If so, keep moving forward till we hit a >0 advance op-code
2641 SavedMenuOption
= CR (TopOfScreen
->BackLink
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2642 TopOfScreen
= TopOfScreen
->BackLink
;
2643 } while (SavedMenuOption
->Skip
== 0);
2645 // If we encounter a Date/Time op-code set, rewind to the first op-code of the set.
2647 AdjustDateAndTimePosition (TRUE
, &TopOfScreen
);
2650 UpdateStatusBar (INPUT_ERROR
, MenuOption
->ThisTag
->Flags
, FALSE
);
2653 SavedMenuOption
= MenuOption
;
2654 MenuOption
= CR (NewPos
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2655 if (MenuOption
->ThisTag
->Operand
== EFI_IFR_SUBTITLE_OP
|| MenuOption
->ThisTag
->GrayOut
) {
2657 // If we are at the end of the list and sitting on a text op, we need to more forward
2659 ScreenOperation
= UiDown
;
2660 ControlFlag
= CfScreenOperation
;
2664 MenuOption
= SavedMenuOption
;
2670 ControlFlag
= CfCheckSelection
;
2672 SavedListEntry
= NewPos
;
2674 for (Index
= BottomRow
; Index
>= TopRow
+ 1; Index
-= MenuOption
->Skip
) {
2675 if (Link
->BackLink
== &Menu
) {
2677 Link
= SavedListEntry
;
2678 MenuOption
= CR (Link
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2684 Link
= Link
->BackLink
;
2685 MenuOption
= CR (Link
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2687 SavedListEntry
= Link
;
2693 // If we encounter a Date/Time op-code set, rewind to the first op-code of the set.
2694 // Don't do this when we are already in the first page.
2697 AdjustDateAndTimePosition (TRUE
, &TopOfScreen
);
2698 AdjustDateAndTimePosition (TRUE
, &NewPos
);
2699 MenuOption
= CR (NewPos
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2704 ControlFlag
= CfCheckSelection
;
2706 SavedListEntry
= NewPos
;
2708 NewPos
= TopOfScreen
;
2709 for (Index
= TopRow
; Index
<= BottomRow
- 1; Index
+= MenuOption
->Skip
) {
2710 if (NewPos
->ForwardLink
== &Menu
) {
2711 NewPos
= SavedListEntry
;
2712 MenuOption
= CR (NewPos
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2721 MenuOption
= CR (NewPos
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2722 NewPos
= NewPos
->ForwardLink
;
2729 // If we encounter a Date/Time op-code set, rewind to the first op-code of the set.
2730 // Don't do this when we are already in the last page.
2733 AdjustDateAndTimePosition (TRUE
, &TopOfScreen
);
2734 AdjustDateAndTimePosition (TRUE
, &NewPos
);
2735 MenuOption
= CR (NewPos
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2740 ControlFlag
= CfCheckSelection
;
2742 // Since the behavior of hitting the down arrow on a Date/Time op-code is intended
2743 // to be one that progresses to the next set of op-codes, we need to advance to the last
2744 // Date/Time op-code and leave the remaining logic in UiDown intact so the appropriate
2745 // checking can be done. The only other logic we need to introduce is that if a Date/Time
2746 // op-code is the last entry in the menu, we need to rewind back to the first op-code of
2747 // the Date/Time op-code.
2749 DataAndTimeLineNumberPad
= AdjustDateAndTimePosition (FALSE
, &NewPos
);
2751 if (NewPos
->ForwardLink
!= &Menu
) {
2753 NewPos
= NewPos
->ForwardLink
;
2754 NextMenuOption
= CR (NewPos
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2758 // If the next MenuOption contains a display-only op-code, skip to the next one
2759 // Also if the next MenuOption is date or time,
2761 if (NextMenuOption
->ThisTag
->Operand
== EFI_IFR_SUBTITLE_OP
|| NextMenuOption
->ThisTag
->GrayOut
) {
2763 // This is ok as long as not at the end of the list
2765 if (NewPos
== &Menu
) {
2767 // If we are at the end of the list, then this list must end with a display only
2768 // piece of data, so do not allow the forward motion
2770 UpdateStatusBar (INPUT_ERROR
, NextMenuOption
->ThisTag
->Flags
, FALSE
);
2771 NewPos
= NewPos
->BackLink
;
2772 ScreenOperation
= UiUp
;
2778 // An option might be multi-line, so we need to reflect that data in the overall skip value
2780 UpdateOptionSkipLines (PageData
, NextMenuOption
, FileFormTagsHead
, &OptionString
, SkipValue
);
2782 if (NextMenuOption
->Skip
> 1) {
2783 Temp
= MenuOption
->Row
+ MenuOption
->Skip
+ NextMenuOption
->Skip
- 1;
2785 Temp
= MenuOption
->Row
+ MenuOption
->Skip
+ DataAndTimeLineNumberPad
;
2788 // If we are going to scroll
2790 if (Temp
> BottomRow
) {
2793 // Is the current top of screen a zero-advance op-code?
2794 // If so, keep moving forward till we hit a >0 advance op-code
2796 SavedMenuOption
= CR (TopOfScreen
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2799 // If bottom op-code is more than one line or top op-code is more than one line
2801 if ((NextMenuOption
->Skip
> 1) || (MenuOption
->Skip
> 1)) {
2803 // Is the bottom op-code greater than or equal in size to the top op-code?
2805 if ((Temp
- BottomRow
) >= (SavedMenuOption
->Skip
- OldSkipValue
)) {
2807 // Skip the top op-code
2809 TopOfScreen
= TopOfScreen
->ForwardLink
;
2810 Difference
= (Temp
- BottomRow
) - (SavedMenuOption
->Skip
- OldSkipValue
);
2812 OldSkipValue
= Difference
;
2814 SavedMenuOption
= CR (TopOfScreen
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2817 // If we have a remainder, skip that many more op-codes until we drain the remainder
2820 Difference
>= (INTN
) SavedMenuOption
->Skip
;
2821 Difference
= Difference
- (INTN
) SavedMenuOption
->Skip
2824 // Since the Difference is greater than or equal to this op-code's skip value, skip it
2826 TopOfScreen
= TopOfScreen
->ForwardLink
;
2827 SavedMenuOption
= CR (TopOfScreen
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2828 if (Difference
< (INTN
) SavedMenuOption
->Skip
) {
2829 Difference
= SavedMenuOption
->Skip
- Difference
- 1;
2832 if (Difference
== (INTN
) SavedMenuOption
->Skip
) {
2833 TopOfScreen
= TopOfScreen
->ForwardLink
;
2834 SavedMenuOption
= CR (TopOfScreen
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2835 Difference
= SavedMenuOption
->Skip
- Difference
;
2841 // Since we will act on this op-code in the next routine, and increment the
2842 // SkipValue, set the skips to one less than what is required.
2844 SkipValue
= Difference
- 1;
2848 // Since we will act on this op-code in the next routine, and increment the
2849 // SkipValue, set the skips to one less than what is required.
2851 SkipValue
= OldSkipValue
+ (Temp
- BottomRow
) - 1;
2854 if ((OldSkipValue
+ 1) == (INTN
) SavedMenuOption
->Skip
) {
2855 TopOfScreen
= TopOfScreen
->ForwardLink
;
2858 SkipValue
= OldSkipValue
;
2862 // If the op-code at the top of the screen is more than one line, let's not skip it yet
2863 // Let's set a skip flag to smoothly scroll the top of the screen.
2865 if (SavedMenuOption
->Skip
> 1) {
2866 if (SavedMenuOption
== NextMenuOption
) {
2873 TopOfScreen
= TopOfScreen
->ForwardLink
;
2875 } while (SavedMenuOption
->Skip
== 0);
2878 OldSkipValue
= SkipValue
;
2881 UpdateStatusBar (INPUT_ERROR
, MenuOption
->ThisTag
->Flags
, FALSE
);
2885 SavedMenuOption
= MenuOption
;
2886 MenuOption
= CR (NewPos
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
2887 if (MenuOption
->ThisTag
->Operand
== EFI_IFR_SUBTITLE_OP
|| MenuOption
->ThisTag
->GrayOut
) {
2889 // If we are at the end of the list and sitting on a text op, we need to more forward
2891 ScreenOperation
= UiUp
;
2892 ControlFlag
= CfScreenOperation
;
2896 MenuOption
= SavedMenuOption
;
2898 // If we are at the end of the list and sitting on a Date/Time op, rewind to the head.
2900 AdjustDateAndTimePosition (TRUE
, &NewPos
);
2906 ControlFlag
= CfCheckSelection
;
2908 // Check for tags that might have LATE_CHECK enabled. If they do, we can't switch pages or save NV data.
2910 if (MenuOption
!= NULL
) {
2911 if (!SelectionsAreValid (MenuOption
, FileFormTagsHead
)) {
2918 // If callbacks are active, and the callback has a Write method, try to use it
2920 if (FileFormTags
->VariableDefinitions
->VariableName
== NULL
) {
2921 if ((FormCallback
!= NULL
) && (FormCallback
->NvWrite
!= NULL
)) {
2922 Status
= FormCallback
->NvWrite (
2924 (CHAR16
*) L
"Setup",
2925 &FileFormTags
->FormTags
.Tags
[0].GuidValue
,
2926 EFI_VARIABLE_NON_VOLATILE
| EFI_VARIABLE_BOOTSERVICE_ACCESS
| EFI_VARIABLE_RUNTIME_ACCESS
,
2927 VariableDefinition
->VariableSize
,
2928 (VOID
*) VariableDefinition
->NvRamMap
,
2933 Status
= gRT
->SetVariable (
2934 (CHAR16
*) L
"Setup",
2935 &FileFormTags
->FormTags
.Tags
[0].GuidValue
,
2936 EFI_VARIABLE_NON_VOLATILE
| EFI_VARIABLE_BOOTSERVICE_ACCESS
| EFI_VARIABLE_RUNTIME_ACCESS
,
2937 VariableDefinition
->VariableSize
,
2938 (VOID
*) VariableDefinition
->NvRamMap
2942 VariableDefinition
= FileFormTags
->VariableDefinitions
;
2944 for (; VariableDefinition
!= NULL
; VariableDefinition
= VariableDefinition
->Next
) {
2945 if ((FormCallback
!= NULL
) && (FormCallback
->NvWrite
!= NULL
)) {
2946 Status
= FormCallback
->NvWrite (
2948 VariableDefinition
->VariableName
,
2949 &VariableDefinition
->Guid
,
2950 EFI_VARIABLE_NON_VOLATILE
| EFI_VARIABLE_BOOTSERVICE_ACCESS
| EFI_VARIABLE_RUNTIME_ACCESS
,
2951 VariableDefinition
->VariableSize
,
2952 (VOID
*) VariableDefinition
->NvRamMap
,
2957 Status
= gRT
->SetVariable (
2958 VariableDefinition
->VariableName
,
2959 &VariableDefinition
->Guid
,
2960 EFI_VARIABLE_NON_VOLATILE
| EFI_VARIABLE_BOOTSERVICE_ACCESS
| EFI_VARIABLE_RUNTIME_ACCESS
,
2961 VariableDefinition
->VariableSize
,
2962 (VOID
*) VariableDefinition
->NvRamMap
2968 UpdateStatusBar (INPUT_ERROR
, MenuOption
->ThisTag
->Flags
, FALSE
);
2969 UpdateStatusBar (NV_UPDATE_REQUIRED
, MenuOption
->ThisTag
->Flags
, FALSE
);
2973 ControlFlag
= CfCheckSelection
;
2975 NvMapListHead
= NULL
;
2977 Status
= Hii
->GetDefaultImage (Hii
, MenuOption
->Handle
, EFI_IFR_FLAG_DEFAULT
, &NvMapListHead
);
2979 if (!EFI_ERROR (Status
)) {
2980 ASSERT_EFI_ERROR (NULL
!= NvMapListHead
);
2982 NvMapListNode
= NvMapListHead
;
2984 while (NULL
!= NvMapListNode
) {
2985 if (FileFormTags
->VariableDefinitions
->VariableId
== NvMapListNode
->VariablePack
->VariableId
) {
2986 NvMap
= (VOID
*) ((CHAR8
*) NvMapListNode
->VariablePack
+ sizeof (EFI_HII_VARIABLE_PACK
) + NvMapListNode
->VariablePack
->VariableNameLength
);
2987 NvMapSize
= NvMapListNode
->VariablePack
->Header
.Length
- sizeof (EFI_HII_VARIABLE_PACK
) - NvMapListNode
->VariablePack
->VariableNameLength
;
2990 NvMapListNode
= NvMapListNode
->NextVariablePack
;
2994 // Free the buffer that was allocated.
2996 gBS
->FreePool (FileFormTags
->VariableDefinitions
->NvRamMap
);
2997 gBS
->FreePool (FileFormTags
->VariableDefinitions
->FakeNvRamMap
);
3000 // Allocate, copy the NvRamMap.
3002 FileFormTags
->VariableDefinitions
->VariableFakeSize
= (UINT16
) (FileFormTags
->VariableDefinitions
->VariableFakeSize
- FileFormTags
->VariableDefinitions
->VariableSize
);
3003 FileFormTags
->VariableDefinitions
->VariableSize
= (UINT16
) NvMapSize
;
3004 FileFormTags
->VariableDefinitions
->VariableFakeSize
= (UINT16
) (FileFormTags
->VariableDefinitions
->VariableFakeSize
+ FileFormTags
->VariableDefinitions
->VariableSize
);
3006 FileFormTags
->VariableDefinitions
->NvRamMap
= AllocateZeroPool (FileFormTags
->VariableDefinitions
->VariableSize
);
3007 ASSERT (FileFormTags
->VariableDefinitions
->NvRamMap
!= NULL
);
3009 FileFormTags
->VariableDefinitions
->FakeNvRamMap
= AllocateZeroPool (NvMapSize
+ FileFormTags
->VariableDefinitions
->VariableFakeSize
);
3010 ASSERT (FileFormTags
->VariableDefinitions
->FakeNvRamMap
!= NULL
);
3012 CopyMem (FileFormTags
->VariableDefinitions
->NvRamMap
, NvMap
, NvMapSize
);
3013 gBS
->FreePool (NvMapListHead
);
3016 UpdateStatusBar (NV_UPDATE_REQUIRED
, MenuOption
->ThisTag
->Flags
, TRUE
);
3019 // After the repaint operation, we should refresh the highlight.
3024 case CfUiNoOperation
:
3025 ControlFlag
= CfCheckSelection
;
3029 while (gMenuRefreshHead
!= NULL
) {
3030 OldMenuRefreshEntry
= gMenuRefreshHead
->Next
;
3032 gBS
->FreePool (gMenuRefreshHead
);
3034 gMenuRefreshHead
= OldMenuRefreshEntry
;
3037 gST
->ConOut
->SetCursorPosition (gST
->ConOut
, 0, Row
+ 4);
3038 gST
->ConOut
->EnableCursor (gST
->ConOut
, TRUE
);
3039 gST
->ConOut
->OutputString (gST
->ConOut
, (CHAR16
*) L
"\n");
3041 gActiveIfr
= MenuOption
->IfrNumber
;
3052 IN BOOLEAN Direction
,
3053 IN LIST_ENTRY
*CurrentPos
3057 Routine Description:
3058 Determine if the menu is the last menu that can be selected.
3061 Direction - the scroll direction. False is down. True is up.
3064 FALSE -- the menu isn't the last menu that can be selected.
3065 TRUE -- the menu is the last menu that can be selected.
3069 UI_MENU_OPTION
*MenuOption
;
3072 Temp
= Direction
? CurrentPos
->BackLink
: CurrentPos
->ForwardLink
;
3074 if (Temp
== &Menu
) {
3078 for (; Temp
!= &Menu
; Temp
= Direction
? Temp
->BackLink
: Temp
->ForwardLink
) {
3079 MenuOption
= CR (Temp
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
3080 if (!(MenuOption
->ThisTag
->Operand
== EFI_IFR_SUBTITLE_OP
|| MenuOption
->ThisTag
->GrayOut
)) {
3089 AdjustDateAndTimePosition (
3090 IN BOOLEAN DirectionUp
,
3091 IN LIST_ENTRY
**CurrentPosition
3094 Routine Description:
3095 Adjust Data and Time tag position accordingly.
3096 Data format : [01/02/2004] [11:22:33]
3097 Line number : 0 0 1 0 0 1
3100 Direction - the up or down direction. False is down. True is up.
3101 CurrentPos - Current position.
3104 Return line number to pad. It is possible that we stand on a zero-advance
3105 data or time opcode, so pad one line when we judge if we are going to scroll outside.
3109 LIST_ENTRY
*NewPosition
;
3110 UI_MENU_OPTION
*MenuOption
;
3111 UINTN PadLineNumber
;
3114 NewPosition
= *CurrentPosition
;
3115 MenuOption
= CR (NewPosition
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
3117 if ((MenuOption
->ThisTag
->Operand
== EFI_IFR_DATE_OP
) || (MenuOption
->ThisTag
->Operand
== EFI_IFR_TIME_OP
)) {
3119 // Calculate the distance from current position to the last Date/Time op-code.
3122 while (MenuOption
->ThisTag
->NumberOfLines
== 0) {
3124 NewPosition
= NewPosition
->ForwardLink
;
3125 MenuOption
= CR (NewPosition
, UI_MENU_OPTION
, Link
, UI_MENU_OPTION_SIGNATURE
);
3129 NewPosition
= *CurrentPosition
;
3132 // Since the behavior of hitting the up arrow on a Date/Time op-code is intended
3133 // to be one that back to the previous set of op-codes, we need to advance to the first
3134 // Date/Time op-code and leave the remaining logic in CfUiUp intact so the appropriate
3135 // checking can be done.
3137 while (Count
++ < 2) {
3138 NewPosition
= NewPosition
->BackLink
;
3142 // Since the behavior of hitting the down arrow on a Date/Time op-code is intended
3143 // to be one that progresses to the next set of op-codes, we need to advance to the last
3144 // Date/Time op-code and leave the remaining logic in CfUiDown intact so the appropriate
3145 // checking can be done.
3147 while (Count
-- > 0) {
3148 NewPosition
= NewPosition
->ForwardLink
;
3152 *CurrentPosition
= NewPosition
;
3155 return PadLineNumber
;