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mirror_edk2/MdeModulePkg/Universal/DisplayEngineDxe/InputHandler.c
Dandan Bi 5ad66ec692 MdeModulePkg:Use safe string functions 
Replace unsafe String functions with new added safe string functions

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17724 6f19259b-4bc3-4df7-8a09-765794883524
2015-06-29 02:36:31 +00:00

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/** @file
Implementation for handling user input from the User Interfaces.
Copyright (c) 2004 - 2015, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "FormDisplay.h"
/**
Get maximum and minimum info from this opcode.
@param OpCode Pointer to the current input opcode.
@param Minimum The minimum size info for this opcode.
@param Maximum The maximum size info for this opcode.
**/
VOID
GetFieldFromOp (
IN EFI_IFR_OP_HEADER *OpCode,
OUT UINTN *Minimum,
OUT UINTN *Maximum
)
{
EFI_IFR_STRING *StringOp;
EFI_IFR_PASSWORD *PasswordOp;
if (OpCode->OpCode == EFI_IFR_STRING_OP) {
StringOp = (EFI_IFR_STRING *) OpCode;
*Minimum = StringOp->MinSize;
*Maximum = StringOp->MaxSize;
} else if (OpCode->OpCode == EFI_IFR_PASSWORD_OP) {
PasswordOp = (EFI_IFR_PASSWORD *) OpCode;
*Minimum = PasswordOp->MinSize;
*Maximum = PasswordOp->MaxSize;
} else {
*Minimum = 0;
*Maximum = 0;
}
}
/**
Get string or password input from user.
@param MenuOption Pointer to the current input menu.
@param Prompt The prompt string shown on popup window.
@param StringPtr Old user input and destination for use input string.
@retval EFI_SUCCESS If string input is read successfully
@retval EFI_DEVICE_ERROR If operation fails
**/
EFI_STATUS
ReadString (
IN UI_MENU_OPTION *MenuOption,
IN CHAR16 *Prompt,
IN OUT CHAR16 *StringPtr
)
{
EFI_STATUS Status;
EFI_INPUT_KEY Key;
CHAR16 NullCharacter;
UINTN ScreenSize;
CHAR16 Space[2];
CHAR16 KeyPad[2];
CHAR16 *TempString;
CHAR16 *BufferedString;
UINTN Index;
UINTN Index2;
UINTN Count;
UINTN Start;
UINTN Top;
UINTN DimensionsWidth;
UINTN DimensionsHeight;
UINTN CurrentCursor;
BOOLEAN CursorVisible;
UINTN Minimum;
UINTN Maximum;
FORM_DISPLAY_ENGINE_STATEMENT *Question;
BOOLEAN IsPassword;
UINTN MaxLen;
DimensionsWidth = gStatementDimensions.RightColumn - gStatementDimensions.LeftColumn;
DimensionsHeight = gStatementDimensions.BottomRow - gStatementDimensions.TopRow;
NullCharacter = CHAR_NULL;
ScreenSize = GetStringWidth (Prompt) / sizeof (CHAR16);
Space[0] = L' ';
Space[1] = CHAR_NULL;
Question = MenuOption->ThisTag;
GetFieldFromOp(Question->OpCode, &Minimum, &Maximum);
if (Question->OpCode->OpCode == EFI_IFR_PASSWORD_OP) {
IsPassword = TRUE;
} else {
IsPassword = FALSE;
}
MaxLen = Maximum + 1;
TempString = AllocateZeroPool (MaxLen * sizeof (CHAR16));
ASSERT (TempString);
if (ScreenSize < (Maximum + 1)) {
ScreenSize = Maximum + 1;
}
if ((ScreenSize + 2) > DimensionsWidth) {
ScreenSize = DimensionsWidth - 2;
}
BufferedString = AllocateZeroPool (ScreenSize * 2);
ASSERT (BufferedString);
Start = (DimensionsWidth - ScreenSize - 2) / 2 + gStatementDimensions.LeftColumn + 1;
Top = ((DimensionsHeight - 6) / 2) + gStatementDimensions.TopRow - 1;
//
// Display prompt for string
//
// CreateDialog (NULL, "", Prompt, Space, "", NULL);
CreateMultiStringPopUp (ScreenSize, 4, &NullCharacter, Prompt, Space, &NullCharacter);
gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_BLACK, EFI_LIGHTGRAY));
CursorVisible = gST->ConOut->Mode->CursorVisible;
gST->ConOut->EnableCursor (gST->ConOut, TRUE);
CurrentCursor = GetStringWidth (StringPtr) / 2 - 1;
if (CurrentCursor != 0) {
//
// Show the string which has beed saved before.
//
SetUnicodeMem (BufferedString, ScreenSize - 1, L' ');
PrintStringAt (Start + 1, Top + 3, BufferedString);
if ((GetStringWidth (StringPtr) / 2) > (DimensionsWidth - 2)) {
Index = (GetStringWidth (StringPtr) / 2) - DimensionsWidth + 2;
} else {
Index = 0;
}
if (IsPassword) {
gST->ConOut->SetCursorPosition (gST->ConOut, Start + 1, Top + 3);
}
for (Count = 0; Index + 1 < GetStringWidth (StringPtr) / 2; Index++, Count++) {
BufferedString[Count] = StringPtr[Index];
if (IsPassword) {
PrintCharAt ((UINTN)-1, (UINTN)-1, L'*');
}
}
if (!IsPassword) {
PrintStringAt (Start + 1, Top + 3, BufferedString);
}
gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK));
gST->ConOut->SetCursorPosition (gST->ConOut, Start + GetStringWidth (StringPtr) / 2, Top + 3);
}
do {
Status = WaitForKeyStroke (&Key);
ASSERT_EFI_ERROR (Status);
gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_BLACK, EFI_LIGHTGRAY));
switch (Key.UnicodeChar) {
case CHAR_NULL:
switch (Key.ScanCode) {
case SCAN_LEFT:
if (CurrentCursor > 0) {
CurrentCursor--;
}
break;
case SCAN_RIGHT:
if (CurrentCursor < (GetStringWidth (StringPtr) / 2 - 1)) {
CurrentCursor++;
}
break;
case SCAN_ESC:
FreePool (TempString);
FreePool (BufferedString);
gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK));
gST->ConOut->EnableCursor (gST->ConOut, CursorVisible);
return EFI_DEVICE_ERROR;
case SCAN_DELETE:
for (Index = CurrentCursor; StringPtr[Index] != CHAR_NULL; Index++) {
StringPtr[Index] = StringPtr[Index + 1];
PrintCharAt (Start + Index + 1, Top + 3, IsPassword && StringPtr[Index] != CHAR_NULL? L'*' : StringPtr[Index]);
}
break;
default:
break;
}
break;
case CHAR_CARRIAGE_RETURN:
if (GetStringWidth (StringPtr) >= ((Minimum + 1) * sizeof (CHAR16))) {
FreePool (TempString);
FreePool (BufferedString);
gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK));
gST->ConOut->EnableCursor (gST->ConOut, CursorVisible);
return EFI_SUCCESS;
} else {
//
// Simply create a popup to tell the user that they had typed in too few characters.
// To save code space, we can then treat this as an error and return back to the menu.
//
do {
CreateDialog (&Key, &NullCharacter, gMiniString, gPressEnter, &NullCharacter, NULL);
} while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);
FreePool (TempString);
FreePool (BufferedString);
gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK));
gST->ConOut->EnableCursor (gST->ConOut, CursorVisible);
return EFI_DEVICE_ERROR;
}
break;
case CHAR_BACKSPACE:
if (StringPtr[0] != CHAR_NULL && CurrentCursor != 0) {
for (Index = 0; Index < CurrentCursor - 1; Index++) {
TempString[Index] = StringPtr[Index];
}
Count = GetStringWidth (StringPtr) / 2 - 1;
if (Count >= CurrentCursor) {
for (Index = CurrentCursor - 1, Index2 = CurrentCursor; Index2 < Count; Index++, Index2++) {
TempString[Index] = StringPtr[Index2];
}
TempString[Index] = CHAR_NULL;
}
//
// Effectively truncate string by 1 character
//
StrCpyS (StringPtr, MaxLen, TempString);
CurrentCursor --;
}
default:
//
// If it is the beginning of the string, don't worry about checking maximum limits
//
if ((StringPtr[0] == CHAR_NULL) && (Key.UnicodeChar != CHAR_BACKSPACE)) {
StrnCpyS (StringPtr, MaxLen, &Key.UnicodeChar, 1);
CurrentCursor++;
} else if ((GetStringWidth (StringPtr) < ((Maximum + 1) * sizeof (CHAR16))) && (Key.UnicodeChar != CHAR_BACKSPACE)) {
KeyPad[0] = Key.UnicodeChar;
KeyPad[1] = CHAR_NULL;
Count = GetStringWidth (StringPtr) / 2 - 1;
if (CurrentCursor < Count) {
for (Index = 0; Index < CurrentCursor; Index++) {
TempString[Index] = StringPtr[Index];
}
TempString[Index] = CHAR_NULL;
StrCatS (TempString, MaxLen, KeyPad);
StrCatS (TempString, MaxLen, StringPtr + CurrentCursor);
StrCpyS (StringPtr, MaxLen, TempString);
} else {
StrCatS (StringPtr, MaxLen, KeyPad);
}
CurrentCursor++;
}
//
// If the width of the input string is now larger than the screen, we nee to
// adjust the index to start printing portions of the string
//
SetUnicodeMem (BufferedString, ScreenSize - 1, L' ');
PrintStringAt (Start + 1, Top + 3, BufferedString);
if ((GetStringWidth (StringPtr) / 2) > (DimensionsWidth - 2)) {
Index = (GetStringWidth (StringPtr) / 2) - DimensionsWidth + 2;
} else {
Index = 0;
}
if (IsPassword) {
gST->ConOut->SetCursorPosition (gST->ConOut, Start + 1, Top + 3);
}
for (Count = 0; Index + 1 < GetStringWidth (StringPtr) / 2; Index++, Count++) {
BufferedString[Count] = StringPtr[Index];
if (IsPassword) {
PrintCharAt ((UINTN)-1, (UINTN)-1, L'*');
}
}
if (!IsPassword) {
PrintStringAt (Start + 1, Top + 3, BufferedString);
}
break;
}
gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK));
gST->ConOut->SetCursorPosition (gST->ConOut, Start + CurrentCursor + 1, Top + 3);
} while (TRUE);
}
/**
Adjust the value to the correct one. Rules follow the sample:
like: Year change: 2012.02.29 -> 2013.02.29 -> 2013.02.01
Month change: 2013.03.29 -> 2013.02.29 -> 2013.02.28
@param QuestionValue Pointer to current question.
@param Sequence The sequence of the field in the question.
**/
VOID
AdjustQuestionValue (
IN EFI_HII_VALUE *QuestionValue,
IN UINT8 Sequence
)
{
UINT8 Month;
UINT16 Year;
UINT8 Maximum;
UINT8 Minimum;
Month = QuestionValue->Value.date.Month;
Year = QuestionValue->Value.date.Year;
Minimum = 1;
switch (Month) {
case 2:
if ((Year % 4) == 0 && ((Year % 100) != 0 || (Year % 400) == 0)) {
Maximum = 29;
} else {
Maximum = 28;
}
break;
case 4:
case 6:
case 9:
case 11:
Maximum = 30;
break;
default:
Maximum = 31;
break;
}
//
// Change the month area.
//
if (Sequence == 0) {
if (QuestionValue->Value.date.Day > Maximum) {
QuestionValue->Value.date.Day = Maximum;
}
}
//
// Change the Year area.
//
if (Sequence == 2) {
if (QuestionValue->Value.date.Day > Maximum) {
QuestionValue->Value.date.Day = Minimum;
}
}
}
/**
Get field info from numeric opcode.
@param OpCode Pointer to the current input opcode.
@param IntInput Whether question shows with EFI_IFR_DISPLAY_INT_DEC type.
@param QuestionValue Input question value, with EFI_HII_VALUE type.
@param Value Return question value, always return UINT64 type.
@param Minimum The minimum size info for this opcode.
@param Maximum The maximum size info for this opcode.
@param Step The step size info for this opcode.
@param StorageWidth The storage width info for this opcode.
**/
VOID
GetValueFromNum (
IN EFI_IFR_OP_HEADER *OpCode,
IN BOOLEAN IntInput,
IN EFI_HII_VALUE *QuestionValue,
OUT UINT64 *Value,
OUT UINT64 *Minimum,
OUT UINT64 *Maximum,
OUT UINT64 *Step,
OUT UINT16 *StorageWidth
)
{
EFI_IFR_NUMERIC *NumericOp;
NumericOp = (EFI_IFR_NUMERIC *) OpCode;
switch (NumericOp->Flags & EFI_IFR_NUMERIC_SIZE) {
case EFI_IFR_NUMERIC_SIZE_1:
if (IntInput) {
*Minimum = (INT64) (INT8) NumericOp->data.u8.MinValue;
*Maximum = (INT64) (INT8) NumericOp->data.u8.MaxValue;
*Value = (INT64) (INT8) QuestionValue->Value.u8;
} else {
*Minimum = NumericOp->data.u8.MinValue;
*Maximum = NumericOp->data.u8.MaxValue;
*Value = QuestionValue->Value.u8;
}
*Step = NumericOp->data.u8.Step;
*StorageWidth = (UINT16) sizeof (UINT8);
break;
case EFI_IFR_NUMERIC_SIZE_2:
if (IntInput) {
*Minimum = (INT64) (INT16) NumericOp->data.u16.MinValue;
*Maximum = (INT64) (INT16) NumericOp->data.u16.MaxValue;
*Value = (INT64) (INT16) QuestionValue->Value.u16;
} else {
*Minimum = NumericOp->data.u16.MinValue;
*Maximum = NumericOp->data.u16.MaxValue;
*Value = QuestionValue->Value.u16;
}
*Step = NumericOp->data.u16.Step;
*StorageWidth = (UINT16) sizeof (UINT16);
break;
case EFI_IFR_NUMERIC_SIZE_4:
if (IntInput) {
*Minimum = (INT64) (INT32) NumericOp->data.u32.MinValue;
*Maximum = (INT64) (INT32) NumericOp->data.u32.MaxValue;
*Value = (INT64) (INT32) QuestionValue->Value.u32;
} else {
*Minimum = NumericOp->data.u32.MinValue;
*Maximum = NumericOp->data.u32.MaxValue;
*Value = QuestionValue->Value.u32;
}
*Step = NumericOp->data.u32.Step;
*StorageWidth = (UINT16) sizeof (UINT32);
break;
case EFI_IFR_NUMERIC_SIZE_8:
if (IntInput) {
*Minimum = (INT64) NumericOp->data.u64.MinValue;
*Maximum = (INT64) NumericOp->data.u64.MaxValue;
*Value = (INT64) QuestionValue->Value.u64;
} else {
*Minimum = NumericOp->data.u64.MinValue;
*Maximum = NumericOp->data.u64.MaxValue;
*Value = QuestionValue->Value.u64;
}
*Step = NumericOp->data.u64.Step;
*StorageWidth = (UINT16) sizeof (UINT64);
break;
default:
break;
}
if (*Maximum == 0) {
*Maximum = (UINT64) -1;
}
}
/**
This routine reads a numeric value from the user input.
@param MenuOption Pointer to the current input menu.
@retval EFI_SUCCESS If numerical input is read successfully
@retval EFI_DEVICE_ERROR If operation fails
**/
EFI_STATUS
GetNumericInput (
IN UI_MENU_OPTION *MenuOption
)
{
UINTN Column;
UINTN Row;
CHAR16 InputText[MAX_NUMERIC_INPUT_WIDTH];
CHAR16 FormattedNumber[MAX_NUMERIC_INPUT_WIDTH - 1];
UINT64 PreviousNumber[MAX_NUMERIC_INPUT_WIDTH - 3];
UINTN Count;
UINTN Loop;
BOOLEAN ManualInput;
BOOLEAN HexInput;
BOOLEAN IntInput;
BOOLEAN Negative;
BOOLEAN ValidateFail;
BOOLEAN DateOrTime;
UINTN InputWidth;
UINT64 EditValue;
UINT64 Step;
UINT64 Minimum;
UINT64 Maximum;
UINTN EraseLen;
UINT8 Digital;
EFI_INPUT_KEY Key;
EFI_HII_VALUE *QuestionValue;
FORM_DISPLAY_ENGINE_STATEMENT *Question;
EFI_IFR_NUMERIC *NumericOp;
UINT16 StorageWidth;
Column = MenuOption->OptCol;
Row = MenuOption->Row;
PreviousNumber[0] = 0;
Count = 0;
InputWidth = 0;
Digital = 0;
StorageWidth = 0;
Minimum = 0;
Maximum = 0;
NumericOp = NULL;
IntInput = FALSE;
HexInput = FALSE;
Negative = FALSE;
ValidateFail = FALSE;
Question = MenuOption->ThisTag;
QuestionValue = &Question->CurrentValue;
//
// Only two case, user can enter to this function: Enter and +/- case.
// In Enter case, gDirection = 0; in +/- case, gDirection = SCAN_LEFT/SCAN_WRIGHT
//
ManualInput = (BOOLEAN)(gDirection == 0 ? TRUE : FALSE);
if ((Question->OpCode->OpCode == EFI_IFR_DATE_OP) || (Question->OpCode->OpCode == EFI_IFR_TIME_OP)) {
DateOrTime = TRUE;
} else {
DateOrTime = FALSE;
}
//
// Prepare Value to be edit
//
EraseLen = 0;
EditValue = 0;
if (Question->OpCode->OpCode == EFI_IFR_DATE_OP) {
Step = 1;
Minimum = 1;
switch (MenuOption->Sequence) {
case 0:
Maximum = 12;
EraseLen = 4;
EditValue = QuestionValue->Value.date.Month;
break;
case 1:
switch (QuestionValue->Value.date.Month) {
case 2:
if ((QuestionValue->Value.date.Year % 4) == 0 &&
((QuestionValue->Value.date.Year % 100) != 0 ||
(QuestionValue->Value.date.Year % 400) == 0)) {
Maximum = 29;
} else {
Maximum = 28;
}
break;
case 4:
case 6:
case 9:
case 11:
Maximum = 30;
break;
default:
Maximum = 31;
break;
}
EraseLen = 3;
EditValue = QuestionValue->Value.date.Day;
break;
case 2:
Maximum = 0xffff;
EraseLen = 5;
EditValue = QuestionValue->Value.date.Year;
break;
default:
break;
}
} else if (Question->OpCode->OpCode == EFI_IFR_TIME_OP) {
Step = 1;
Minimum = 0;
switch (MenuOption->Sequence) {
case 0:
Maximum = 23;
EraseLen = 4;
EditValue = QuestionValue->Value.time.Hour;
break;
case 1:
Maximum = 59;
EraseLen = 3;
EditValue = QuestionValue->Value.time.Minute;
break;
case 2:
Maximum = 59;
EraseLen = 3;
EditValue = QuestionValue->Value.time.Second;
break;
default:
break;
}
} else {
ASSERT (Question->OpCode->OpCode == EFI_IFR_NUMERIC_OP);
NumericOp = (EFI_IFR_NUMERIC *) Question->OpCode;
GetValueFromNum(Question->OpCode, (NumericOp->Flags & EFI_IFR_DISPLAY) == 0, QuestionValue, &EditValue, &Minimum, &Maximum, &Step, &StorageWidth);
EraseLen = gOptionBlockWidth;
}
if ((Question->OpCode->OpCode == EFI_IFR_NUMERIC_OP) && (NumericOp != NULL)) {
if ((NumericOp->Flags & EFI_IFR_DISPLAY) == EFI_IFR_DISPLAY_UINT_HEX){
HexInput = TRUE;
} else if ((NumericOp->Flags & EFI_IFR_DISPLAY) == 0){
//
// Display with EFI_IFR_DISPLAY_INT_DEC type. Support negative number.
//
IntInput = TRUE;
}
}
//
// Enter from "Enter" input, clear the old word showing.
//
if (ManualInput) {
if (Question->OpCode->OpCode == EFI_IFR_NUMERIC_OP) {
if (HexInput) {
InputWidth = StorageWidth * 2;
} else {
switch (StorageWidth) {
case 1:
InputWidth = 3;
break;
case 2:
InputWidth = 5;
break;
case 4:
InputWidth = 10;
break;
case 8:
InputWidth = 20;
break;
default:
InputWidth = 0;
break;
}
if (IntInput) {
//
// Support an extra '-' for negative number.
//
InputWidth += 1;
}
}
InputText[0] = LEFT_NUMERIC_DELIMITER;
SetUnicodeMem (InputText + 1, InputWidth, L' ');
ASSERT (InputWidth + 2 < MAX_NUMERIC_INPUT_WIDTH);
InputText[InputWidth + 1] = RIGHT_NUMERIC_DELIMITER;
InputText[InputWidth + 2] = L'\0';
PrintStringAt (Column, Row, InputText);
Column++;
}
if (Question->OpCode->OpCode == EFI_IFR_DATE_OP) {
if (MenuOption->Sequence == 2) {
InputWidth = 4;
} else {
InputWidth = 2;
}
if (MenuOption->Sequence == 0) {
InputText[0] = LEFT_NUMERIC_DELIMITER;
SetUnicodeMem (InputText + 1, InputWidth, L' ');
} else {
SetUnicodeMem (InputText, InputWidth, L' ');
}
if (MenuOption->Sequence == 2) {
InputText[InputWidth + 1] = RIGHT_NUMERIC_DELIMITER;
} else {
InputText[InputWidth + 1] = DATE_SEPARATOR;
}
InputText[InputWidth + 2] = L'\0';
PrintStringAt (Column, Row, InputText);
if (MenuOption->Sequence == 0) {
Column++;
}
}
if (Question->OpCode->OpCode == EFI_IFR_TIME_OP) {
InputWidth = 2;
if (MenuOption->Sequence == 0) {
InputText[0] = LEFT_NUMERIC_DELIMITER;
SetUnicodeMem (InputText + 1, InputWidth, L' ');
} else {
SetUnicodeMem (InputText, InputWidth, L' ');
}
if (MenuOption->Sequence == 2) {
InputText[InputWidth + 1] = RIGHT_NUMERIC_DELIMITER;
} else {
InputText[InputWidth + 1] = TIME_SEPARATOR;
}
InputText[InputWidth + 2] = L'\0';
PrintStringAt (Column, Row, InputText);
if (MenuOption->Sequence == 0) {
Column++;
}
}
}
//
// First time we enter this handler, we need to check to see if
// we were passed an increment or decrement directive
//
do {
Key.UnicodeChar = CHAR_NULL;
if (gDirection != 0) {
Key.ScanCode = gDirection;
gDirection = 0;
goto TheKey2;
}
WaitForKeyStroke (&Key);
TheKey2:
switch (Key.UnicodeChar) {
case '+':
case '-':
if (ManualInput && IntInput) {
//
// In Manual input mode, check whether input the negative flag.
//
if (Key.UnicodeChar == '-') {
if (Negative) {
break;
}
Negative = TRUE;
PrintCharAt (Column++, Row, Key.UnicodeChar);
}
} else {
if (Key.UnicodeChar == '+') {
Key.ScanCode = SCAN_RIGHT;
} else {
Key.ScanCode = SCAN_LEFT;
}
Key.UnicodeChar = CHAR_NULL;
goto TheKey2;
}
break;
case CHAR_NULL:
switch (Key.ScanCode) {
case SCAN_LEFT:
case SCAN_RIGHT:
if (DateOrTime && !ManualInput) {
//
// By setting this value, we will return back to the caller.
// We need to do this since an auto-refresh will destroy the adjustment
// based on what the real-time-clock is showing. So we always commit
// upon changing the value.
//
gDirection = SCAN_DOWN;
}
if ((Step != 0) && !ManualInput) {
if (Key.ScanCode == SCAN_LEFT) {
if (IntInput) {
if ((INT64) EditValue >= (INT64) Minimum + (INT64) Step) {
EditValue = EditValue - Step;
} else if ((INT64) EditValue > (INT64) Minimum){
EditValue = Minimum;
} else {
EditValue = Maximum;
}
} else {
if (EditValue >= Minimum + Step) {
EditValue = EditValue - Step;
} else if (EditValue > Minimum){
EditValue = Minimum;
} else {
EditValue = Maximum;
}
}
} else if (Key.ScanCode == SCAN_RIGHT) {
if (IntInput) {
if ((INT64) EditValue + (INT64) Step <= (INT64) Maximum) {
EditValue = EditValue + Step;
} else if ((INT64) EditValue < (INT64) Maximum) {
EditValue = Maximum;
} else {
EditValue = Minimum;
}
} else {
if (EditValue + Step <= Maximum) {
EditValue = EditValue + Step;
} else if (EditValue < Maximum) {
EditValue = Maximum;
} else {
EditValue = Minimum;
}
}
}
ZeroMem (FormattedNumber, 21 * sizeof (CHAR16));
if (Question->OpCode->OpCode == EFI_IFR_DATE_OP) {
if (MenuOption->Sequence == 2) {
//
// Year
//
UnicodeSPrint (FormattedNumber, 21 * sizeof (CHAR16), L"%04d", (UINT16) EditValue);
} else {
//
// Month/Day
//
UnicodeSPrint (FormattedNumber, 21 * sizeof (CHAR16), L"%02d", (UINT8) EditValue);
}
if (MenuOption->Sequence == 0) {
ASSERT (EraseLen >= 2);
FormattedNumber[EraseLen - 2] = DATE_SEPARATOR;
} else if (MenuOption->Sequence == 1) {
ASSERT (EraseLen >= 1);
FormattedNumber[EraseLen - 1] = DATE_SEPARATOR;
}
} else if (Question->OpCode->OpCode == EFI_IFR_TIME_OP) {
UnicodeSPrint (FormattedNumber, 21 * sizeof (CHAR16), L"%02d", (UINT8) EditValue);
if (MenuOption->Sequence == 0) {
ASSERT (EraseLen >= 2);
FormattedNumber[EraseLen - 2] = TIME_SEPARATOR;
} else if (MenuOption->Sequence == 1) {
ASSERT (EraseLen >= 1);
FormattedNumber[EraseLen - 1] = TIME_SEPARATOR;
}
} else {
QuestionValue->Value.u64 = EditValue;
PrintFormattedNumber (Question, FormattedNumber, 21 * sizeof (CHAR16));
}
gST->ConOut->SetAttribute (gST->ConOut, GetFieldTextColor ());
for (Loop = 0; Loop < EraseLen; Loop++) {
PrintStringAt (MenuOption->OptCol + Loop, MenuOption->Row, L" ");
}
gST->ConOut->SetAttribute (gST->ConOut, GetHighlightTextColor ());
if (MenuOption->Sequence == 0) {
PrintCharAt (MenuOption->OptCol, Row, LEFT_NUMERIC_DELIMITER);
Column = MenuOption->OptCol + 1;
}
PrintStringAt (Column, Row, FormattedNumber);
if (!DateOrTime || MenuOption->Sequence == 2) {
PrintCharAt ((UINTN)-1, (UINTN)-1, RIGHT_NUMERIC_DELIMITER);
}
}
goto EnterCarriageReturn;
break;
case SCAN_UP:
case SCAN_DOWN:
goto EnterCarriageReturn;
case SCAN_ESC:
return EFI_DEVICE_ERROR;
default:
break;
}
break;
EnterCarriageReturn:
case CHAR_CARRIAGE_RETURN:
//
// Validate input value with Minimum value.
//
ValidateFail = FALSE;
if (IntInput) {
//
// After user input Enter, need to check whether the input value.
// If input a negative value, should compare with maximum value.
// else compare with the minimum value.
//
if (Negative) {
ValidateFail = (INT64) EditValue > (INT64) Maximum ? TRUE : FALSE;
} else {
ValidateFail = (INT64) EditValue < (INT64) Minimum ? TRUE : FALSE;
}
if (ValidateFail) {
UpdateStatusBar (INPUT_ERROR, TRUE);
break;
}
} else if (EditValue < Minimum) {
UpdateStatusBar (INPUT_ERROR, TRUE);
break;
}
UpdateStatusBar (INPUT_ERROR, FALSE);
CopyMem (&gUserInput->InputValue, &Question->CurrentValue, sizeof (EFI_HII_VALUE));
QuestionValue = &gUserInput->InputValue;
//
// Store Edit value back to Question
//
if (Question->OpCode->OpCode == EFI_IFR_DATE_OP) {
switch (MenuOption->Sequence) {
case 0:
QuestionValue->Value.date.Month = (UINT8) EditValue;
break;
case 1:
QuestionValue->Value.date.Day = (UINT8) EditValue;
break;
case 2:
QuestionValue->Value.date.Year = (UINT16) EditValue;
break;
default:
break;
}
} else if (Question->OpCode->OpCode == EFI_IFR_TIME_OP) {
switch (MenuOption->Sequence) {
case 0:
QuestionValue->Value.time.Hour = (UINT8) EditValue;
break;
case 1:
QuestionValue->Value.time.Minute = (UINT8) EditValue;
break;
case 2:
QuestionValue->Value.time.Second = (UINT8) EditValue;
break;
default:
break;
}
} else {
//
// Numeric
//
QuestionValue->Value.u64 = EditValue;
}
//
// Adjust the value to the correct one.
// Sample like: 2012.02.29 -> 2013.02.29 -> 2013.02.01
// 2013.03.29 -> 2013.02.29 -> 2013.02.28
//
if (Question->OpCode->OpCode == EFI_IFR_DATE_OP &&
(MenuOption->Sequence == 0 || MenuOption->Sequence == 2)) {
AdjustQuestionValue (QuestionValue, (UINT8)MenuOption->Sequence);
}
return EFI_SUCCESS;
break;
case CHAR_BACKSPACE:
if (ManualInput) {
if (Count == 0) {
if (Negative) {
Negative = FALSE;
Column--;
PrintStringAt (Column, Row, L" ");
}
break;
}
//
// Remove a character
//
EditValue = PreviousNumber[Count - 1];
UpdateStatusBar (INPUT_ERROR, FALSE);
Count--;
Column--;
PrintStringAt (Column, Row, L" ");
}
break;
default:
if (ManualInput) {
if (HexInput) {
if ((Key.UnicodeChar >= L'0') && (Key.UnicodeChar <= L'9')) {
Digital = (UINT8) (Key.UnicodeChar - L'0');
} else if ((Key.UnicodeChar >= L'A') && (Key.UnicodeChar <= L'F')) {
Digital = (UINT8) (Key.UnicodeChar - L'A' + 0x0A);
} else if ((Key.UnicodeChar >= L'a') && (Key.UnicodeChar <= L'f')) {
Digital = (UINT8) (Key.UnicodeChar - L'a' + 0x0A);
} else {
UpdateStatusBar (INPUT_ERROR, TRUE);
break;
}
} else {
if (Key.UnicodeChar > L'9' || Key.UnicodeChar < L'0') {
UpdateStatusBar (INPUT_ERROR, TRUE);
break;
}
}
//
// If Count exceed input width, there is no way more is valid
//
if (Count >= InputWidth) {
break;
}
//
// Someone typed something valid!
//
if (Count != 0) {
if (HexInput) {
EditValue = LShiftU64 (EditValue, 4) + Digital;
} else if (IntInput && Negative) {
//
// Save the negative number.
//
EditValue = ~(MultU64x32 (~(EditValue - 1), 10) + (Key.UnicodeChar - L'0')) + 1;
} else {
EditValue = MultU64x32 (EditValue, 10) + (Key.UnicodeChar - L'0');
}
} else {
if (HexInput) {
EditValue = Digital;
} else if (IntInput && Negative) {
//
// Save the negative number.
//
EditValue = ~(Key.UnicodeChar - L'0') + 1;
} else {
EditValue = Key.UnicodeChar - L'0';
}
}
if (IntInput) {
ValidateFail = FALSE;
//
// When user input a new value, should check the current value.
// If user input a negative value, should compare it with minimum
// value, else compare it with maximum value.
//
if (Negative) {
ValidateFail = (INT64) EditValue < (INT64) Minimum ? TRUE : FALSE;
} else {
ValidateFail = (INT64) EditValue > (INT64) Maximum ? TRUE : FALSE;
}
if (ValidateFail) {
UpdateStatusBar (INPUT_ERROR, TRUE);
ASSERT (Count < sizeof (PreviousNumber) / sizeof (PreviousNumber[0]));
EditValue = PreviousNumber[Count];
break;
}
} else {
if (EditValue > Maximum) {
UpdateStatusBar (INPUT_ERROR, TRUE);
ASSERT (Count < sizeof (PreviousNumber) / sizeof (PreviousNumber[0]));
EditValue = PreviousNumber[Count];
break;
}
}
UpdateStatusBar (INPUT_ERROR, FALSE);
Count++;
ASSERT (Count < (sizeof (PreviousNumber) / sizeof (PreviousNumber[0])));
PreviousNumber[Count] = EditValue;
gST->ConOut->SetAttribute (gST->ConOut, GetHighlightTextColor ());
PrintCharAt (Column, Row, Key.UnicodeChar);
Column++;
}
break;
}
} while (TRUE);
}
/**
Adjust option order base on the question value.
@param Question Pointer to current question.
@param PopUpMenuLines The line number of the pop up menu.
@retval EFI_SUCCESS If Option input is processed successfully
@retval EFI_DEVICE_ERROR If operation fails
**/
EFI_STATUS
AdjustOptionOrder (
IN FORM_DISPLAY_ENGINE_STATEMENT *Question,
OUT UINTN *PopUpMenuLines
)
{
UINTN Index;
EFI_IFR_ORDERED_LIST *OrderList;
UINT8 *ValueArray;
UINT8 ValueType;
LIST_ENTRY *Link;
DISPLAY_QUESTION_OPTION *OneOfOption;
EFI_HII_VALUE *HiiValueArray;
Link = GetFirstNode (&Question->OptionListHead);
OneOfOption = DISPLAY_QUESTION_OPTION_FROM_LINK (Link);
ValueArray = Question->CurrentValue.Buffer;
ValueType = OneOfOption->OptionOpCode->Type;
OrderList = (EFI_IFR_ORDERED_LIST *) Question->OpCode;
for (Index = 0; Index < OrderList->MaxContainers; Index++) {
if (GetArrayData (ValueArray, ValueType, Index) == 0) {
break;
}
}
*PopUpMenuLines = Index;
//
// Prepare HiiValue array
//
HiiValueArray = AllocateZeroPool (*PopUpMenuLines * sizeof (EFI_HII_VALUE));
ASSERT (HiiValueArray != NULL);
for (Index = 0; Index < *PopUpMenuLines; Index++) {
HiiValueArray[Index].Type = ValueType;
HiiValueArray[Index].Value.u64 = GetArrayData (ValueArray, ValueType, Index);
}
for (Index = 0; Index < *PopUpMenuLines; Index++) {
OneOfOption = ValueToOption (Question, &HiiValueArray[*PopUpMenuLines - Index - 1]);
if (OneOfOption == NULL) {
return EFI_NOT_FOUND;
}
RemoveEntryList (&OneOfOption->Link);
//
// Insert to head.
//
InsertHeadList (&Question->OptionListHead, &OneOfOption->Link);
}
FreePool (HiiValueArray);
return EFI_SUCCESS;
}
/**
Base on the type to compare the value.
@param Value1 The first value need to compare.
@param Value2 The second value need to compare.
@param Type The value type for above two values.
@retval TRUE The two value are same.
@retval FALSE The two value are different.
**/
BOOLEAN
IsValuesEqual (
IN EFI_IFR_TYPE_VALUE *Value1,
IN EFI_IFR_TYPE_VALUE *Value2,
IN UINT8 Type
)
{
switch (Type) {
case EFI_IFR_TYPE_BOOLEAN:
case EFI_IFR_TYPE_NUM_SIZE_8:
return (BOOLEAN) (Value1->u8 == Value2->u8);
case EFI_IFR_TYPE_NUM_SIZE_16:
return (BOOLEAN) (Value1->u16 == Value2->u16);
case EFI_IFR_TYPE_NUM_SIZE_32:
return (BOOLEAN) (Value1->u32 == Value2->u32);
case EFI_IFR_TYPE_NUM_SIZE_64:
return (BOOLEAN) (Value1->u64 == Value2->u64);
default:
ASSERT (FALSE);
return FALSE;
}
}
/**
Base on the type to set the value.
@param Dest The dest value.
@param Source The source value.
@param Type The value type for above two values.
**/
VOID
SetValuesByType (
OUT EFI_IFR_TYPE_VALUE *Dest,
IN EFI_IFR_TYPE_VALUE *Source,
IN UINT8 Type
)
{
switch (Type) {
case EFI_IFR_TYPE_BOOLEAN:
Dest->b = Source->b;
break;
case EFI_IFR_TYPE_NUM_SIZE_8:
Dest->u8 = Source->u8;
break;
case EFI_IFR_TYPE_NUM_SIZE_16:
Dest->u16 = Source->u16;
break;
case EFI_IFR_TYPE_NUM_SIZE_32:
Dest->u32 = Source->u32;
break;
case EFI_IFR_TYPE_NUM_SIZE_64:
Dest->u64 = Source->u64;
break;
default:
ASSERT (FALSE);
break;
}
}
/**
Get selection for OneOf and OrderedList (Left/Right will be ignored).
@param MenuOption Pointer to the current input menu.
@retval EFI_SUCCESS If Option input is processed successfully
@retval EFI_DEVICE_ERROR If operation fails
**/
EFI_STATUS
GetSelectionInputPopUp (
IN UI_MENU_OPTION *MenuOption
)
{
EFI_INPUT_KEY Key;
UINTN Index;
CHAR16 *StringPtr;
CHAR16 *TempStringPtr;
UINTN Index2;
UINTN TopOptionIndex;
UINTN HighlightOptionIndex;
UINTN Start;
UINTN End;
UINTN Top;
UINTN Bottom;
UINTN PopUpMenuLines;
UINTN MenuLinesInView;
UINTN PopUpWidth;
CHAR16 Character;
INT32 SavedAttribute;
BOOLEAN ShowDownArrow;
BOOLEAN ShowUpArrow;
UINTN DimensionsWidth;
LIST_ENTRY *Link;
BOOLEAN OrderedList;
UINT8 *ValueArray;
UINT8 *ReturnValue;
UINT8 ValueType;
EFI_HII_VALUE HiiValue;
DISPLAY_QUESTION_OPTION *OneOfOption;
DISPLAY_QUESTION_OPTION *CurrentOption;
FORM_DISPLAY_ENGINE_STATEMENT *Question;
INTN Result;
EFI_IFR_ORDERED_LIST *OrderList;
DimensionsWidth = gStatementDimensions.RightColumn - gStatementDimensions.LeftColumn;
ValueArray = NULL;
ValueType = 0;
CurrentOption = NULL;
ShowDownArrow = FALSE;
ShowUpArrow = FALSE;
StringPtr = AllocateZeroPool ((gOptionBlockWidth + 1) * 2);
ASSERT (StringPtr);
ZeroMem (&HiiValue, sizeof (EFI_HII_VALUE));
Question = MenuOption->ThisTag;
if (Question->OpCode->OpCode == EFI_IFR_ORDERED_LIST_OP) {
Link = GetFirstNode (&Question->OptionListHead);
OneOfOption = DISPLAY_QUESTION_OPTION_FROM_LINK (Link);
ValueArray = Question->CurrentValue.Buffer;
ValueType = OneOfOption->OptionOpCode->Type;
OrderedList = TRUE;
OrderList = (EFI_IFR_ORDERED_LIST *) Question->OpCode;
} else {
OrderedList = FALSE;
OrderList = NULL;
}
//
// Calculate Option count
//
PopUpMenuLines = 0;
if (OrderedList) {
AdjustOptionOrder(Question, &PopUpMenuLines);
} else {
Link = GetFirstNode (&Question->OptionListHead);
while (!IsNull (&Question->OptionListHead, Link)) {
OneOfOption = DISPLAY_QUESTION_OPTION_FROM_LINK (Link);
PopUpMenuLines++;
Link = GetNextNode (&Question->OptionListHead, Link);
}
}
//
// Get the number of one of options present and its size
//
PopUpWidth = 0;
HighlightOptionIndex = 0;
Link = GetFirstNode (&Question->OptionListHead);
for (Index = 0; Index < PopUpMenuLines; Index++) {
OneOfOption = DISPLAY_QUESTION_OPTION_FROM_LINK (Link);
StringPtr = GetToken (OneOfOption->OptionOpCode->Option, gFormData->HiiHandle);
if (StrLen (StringPtr) > PopUpWidth) {
PopUpWidth = StrLen (StringPtr);
}
FreePool (StringPtr);
HiiValue.Type = OneOfOption->OptionOpCode->Type;
SetValuesByType (&HiiValue.Value, &OneOfOption->OptionOpCode->Value, HiiValue.Type);
if (!OrderedList && (CompareHiiValue (&Question->CurrentValue, &HiiValue, &Result, NULL) == EFI_SUCCESS) && (Result == 0)) {
//
// Find current selected Option for OneOf
//
HighlightOptionIndex = Index;
}
Link = GetNextNode (&Question->OptionListHead, Link);
}
//
// Perform popup menu initialization.
//
PopUpWidth = PopUpWidth + POPUP_PAD_SPACE_COUNT;
SavedAttribute = gST->ConOut->Mode->Attribute;
gST->ConOut->SetAttribute (gST->ConOut, GetPopupColor ());
if ((PopUpWidth + POPUP_FRAME_WIDTH) > DimensionsWidth) {
PopUpWidth = DimensionsWidth - POPUP_FRAME_WIDTH;
}
Start = (DimensionsWidth - PopUpWidth - POPUP_FRAME_WIDTH) / 2 + gStatementDimensions.LeftColumn;
End = Start + PopUpWidth + POPUP_FRAME_WIDTH;
Top = gStatementDimensions.TopRow;
Bottom = gStatementDimensions.BottomRow - 1;
MenuLinesInView = Bottom - Top - 1;
if (MenuLinesInView >= PopUpMenuLines) {
Top = Top + (MenuLinesInView - PopUpMenuLines) / 2;
Bottom = Top + PopUpMenuLines + 1;
} else {
ShowDownArrow = TRUE;
}
if (HighlightOptionIndex > (MenuLinesInView - 1)) {
TopOptionIndex = HighlightOptionIndex - MenuLinesInView + 1;
} else {
TopOptionIndex = 0;
}
do {
//
// Clear that portion of the screen
//
ClearLines (Start, End, Top, Bottom, GetPopupColor ());
//
// Draw "One of" pop-up menu
//
Character = BOXDRAW_DOWN_RIGHT;
PrintCharAt (Start, Top, Character);
for (Index = Start; Index + 2 < End; Index++) {
if ((ShowUpArrow) && ((Index + 1) == (Start + End) / 2)) {
Character = GEOMETRICSHAPE_UP_TRIANGLE;
} else {
Character = BOXDRAW_HORIZONTAL;
}
PrintCharAt ((UINTN)-1, (UINTN)-1, Character);
}
Character = BOXDRAW_DOWN_LEFT;
PrintCharAt ((UINTN)-1, (UINTN)-1, Character);
Character = BOXDRAW_VERTICAL;
for (Index = Top + 1; Index < Bottom; Index++) {
PrintCharAt (Start, Index, Character);
PrintCharAt (End - 1, Index, Character);
}
//
// Move to top Option
//
Link = GetFirstNode (&Question->OptionListHead);
for (Index = 0; Index < TopOptionIndex; Index++) {
Link = GetNextNode (&Question->OptionListHead, Link);
}
//
// Display the One of options
//
Index2 = Top + 1;
for (Index = TopOptionIndex; (Index < PopUpMenuLines) && (Index2 < Bottom); Index++) {
OneOfOption = DISPLAY_QUESTION_OPTION_FROM_LINK (Link);
Link = GetNextNode (&Question->OptionListHead, Link);
StringPtr = GetToken (OneOfOption->OptionOpCode->Option, gFormData->HiiHandle);
ASSERT (StringPtr != NULL);
//
// If the string occupies multiple lines, truncate it to fit in one line,
// and append a "..." for indication.
//
if (StrLen (StringPtr) > (PopUpWidth - 1)) {
TempStringPtr = AllocateZeroPool (sizeof (CHAR16) * (PopUpWidth - 1));
ASSERT ( TempStringPtr != NULL );
CopyMem (TempStringPtr, StringPtr, (sizeof (CHAR16) * (PopUpWidth - 5)));
FreePool (StringPtr);
StringPtr = TempStringPtr;
StrCatS (StringPtr, PopUpWidth - 1, L"...");
}
if (Index == HighlightOptionIndex) {
//
// Highlight the selected one
//
CurrentOption = OneOfOption;
gST->ConOut->SetAttribute (gST->ConOut, GetPickListColor ());
PrintStringAt (Start + 2, Index2, StringPtr);
gST->ConOut->SetAttribute (gST->ConOut, GetPopupColor ());
} else {
gST->ConOut->SetAttribute (gST->ConOut, GetPopupColor ());
PrintStringAt (Start + 2, Index2, StringPtr);
}
Index2++;
FreePool (StringPtr);
}
Character = BOXDRAW_UP_RIGHT;
PrintCharAt (Start, Bottom, Character);
for (Index = Start; Index + 2 < End; Index++) {
if ((ShowDownArrow) && ((Index + 1) == (Start + End) / 2)) {
Character = GEOMETRICSHAPE_DOWN_TRIANGLE;
} else {
Character = BOXDRAW_HORIZONTAL;
}
PrintCharAt ((UINTN)-1, (UINTN)-1, Character);
}
Character = BOXDRAW_UP_LEFT;
PrintCharAt ((UINTN)-1, (UINTN)-1, Character);
//
// Get User selection
//
Key.UnicodeChar = CHAR_NULL;
if ((gDirection == SCAN_UP) || (gDirection == SCAN_DOWN)) {
Key.ScanCode = gDirection;
gDirection = 0;
goto TheKey;
}
WaitForKeyStroke (&Key);
TheKey:
switch (Key.UnicodeChar) {
case '+':
if (OrderedList) {
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--;
ASSERT (CurrentOption != NULL);
SwapListEntries (CurrentOption->Link.BackLink, &CurrentOption->Link);
}
}
break;
case '-':
//
// If an ordered list op-code, we will allow for a popup of +/- keys
// to create an ordered list of items
//
if (OrderedList) {
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++;
ASSERT (CurrentOption != NULL);
SwapListEntries (&CurrentOption->Link, CurrentOption->Link.ForwardLink);
}
}
break;
case CHAR_NULL:
switch (Key.ScanCode) {
case SCAN_UP:
case SCAN_DOWN:
if (Key.ScanCode == SCAN_UP) {
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--;
}
} else {
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 SCAN_ESC:
gST->ConOut->SetAttribute (gST->ConOut, SavedAttribute);
//
// Restore link list order for orderedlist
//
if (OrderedList) {
HiiValue.Type = ValueType;
HiiValue.Value.u64 = 0;
for (Index = 0; Index < OrderList->MaxContainers; Index++) {
HiiValue.Value.u64 = GetArrayData (ValueArray, ValueType, Index);
if (HiiValue.Value.u64 == 0) {
break;
}
OneOfOption = ValueToOption (Question, &HiiValue);
if (OneOfOption == NULL) {
return EFI_NOT_FOUND;
}
RemoveEntryList (&OneOfOption->Link);
InsertTailList (&Question->OptionListHead, &OneOfOption->Link);
}
}
return EFI_DEVICE_ERROR;
default:
break;
}
break;
case CHAR_CARRIAGE_RETURN:
//
// return the current selection
//
if (OrderedList) {
ReturnValue = AllocateZeroPool (Question->CurrentValue.BufferLen);
ASSERT (ReturnValue != NULL);
Index = 0;
Link = GetFirstNode (&Question->OptionListHead);
while (!IsNull (&Question->OptionListHead, Link)) {
OneOfOption = DISPLAY_QUESTION_OPTION_FROM_LINK (Link);
Link = GetNextNode (&Question->OptionListHead, Link);
SetArrayData (ReturnValue, ValueType, Index, OneOfOption->OptionOpCode->Value.u64);
Index++;
if (Index > OrderList->MaxContainers) {
break;
}
}
if (CompareMem (ReturnValue, ValueArray, Question->CurrentValue.BufferLen) == 0) {
FreePool (ReturnValue);
return EFI_DEVICE_ERROR;
} else {
gUserInput->InputValue.Buffer = ReturnValue;
gUserInput->InputValue.BufferLen = Question->CurrentValue.BufferLen;
}
} else {
ASSERT (CurrentOption != NULL);
gUserInput->InputValue.Type = CurrentOption->OptionOpCode->Type;
if (IsValuesEqual (&Question->CurrentValue.Value, &CurrentOption->OptionOpCode->Value, gUserInput->InputValue.Type)) {
return EFI_DEVICE_ERROR;
} else {
SetValuesByType (&gUserInput->InputValue.Value, &CurrentOption->OptionOpCode->Value, gUserInput->InputValue.Type);
}
}
gST->ConOut->SetAttribute (gST->ConOut, SavedAttribute);
return EFI_SUCCESS;
default:
break;
}
} while (TRUE);
}
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