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-rw-r--r--MdeModulePkg/Universal/SetupBrowserDxe/InputHandler.c1146
1 files changed, 1146 insertions, 0 deletions
diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/InputHandler.c b/MdeModulePkg/Universal/SetupBrowserDxe/InputHandler.c
new file mode 100644
index 0000000000..5257f32b66
--- /dev/null
+++ b/MdeModulePkg/Universal/SetupBrowserDxe/InputHandler.c
@@ -0,0 +1,1146 @@
+/** @file
+
+Copyright (c) 2004 - 2007, Intel Corporation
+All rights reserved. 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.
+
+Module Name:
+
+ InputHandler.c
+
+Abstract:
+
+ Implementation for handling user input from the User Interface
+
+Revision History
+
+
+**/
+
+#include "Ui.h"
+#include "Setup.h"
+
+
+/**
+ 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 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,
+ 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 Count;
+ UINTN Start;
+ UINTN Top;
+ UINTN DimensionsWidth;
+ UINTN DimensionsHeight;
+ BOOLEAN CursorVisible;
+ UINTN Minimum;
+ UINTN Maximum;
+ FORM_BROWSER_STATEMENT *Question;
+ BOOLEAN IsPassword;
+
+ DimensionsWidth = gScreenDimensions.RightColumn - gScreenDimensions.LeftColumn;
+ DimensionsHeight = gScreenDimensions.BottomRow - gScreenDimensions.TopRow;
+
+ NullCharacter = CHAR_NULL;
+ ScreenSize = GetStringWidth (Prompt) / sizeof (CHAR16);
+ Space[0] = L' ';
+ Space[1] = CHAR_NULL;
+
+ Question = MenuOption->ThisTag;
+ Minimum = (UINTN) Question->Minimum;
+ Maximum = (UINTN) Question->Maximum;
+
+ if (Question->Operand == EFI_IFR_PASSWORD_OP) {
+ IsPassword = TRUE;
+ } else {
+ IsPassword = FALSE;
+ }
+
+ TempString = AllocateZeroPool ((Maximum + 1)* 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 + gScreenDimensions.LeftColumn + 1;
+ Top = ((DimensionsHeight - 6) / 2) + gScreenDimensions.TopRow - 1;
+
+ //
+ // Display prompt for string
+ //
+ CreatePopUp (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);
+
+ 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:
+ break;
+
+ case SCAN_RIGHT:
+ break;
+
+ case SCAN_ESC:
+ gBS->FreePool (TempString);
+ gBS->FreePool (BufferedString);
+ gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK));
+ gST->ConOut->EnableCursor (gST->ConOut, CursorVisible);
+ return EFI_DEVICE_ERROR;
+
+ default:
+ break;
+ }
+
+ break;
+
+ case CHAR_CARRIAGE_RETURN:
+ if (GetStringWidth (StringPtr) >= ((Minimum + 1) * sizeof (CHAR16))) {
+
+ gBS->FreePool (TempString);
+ gBS->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 (4, TRUE, 0, NULL, &Key, &NullCharacter, gMiniString, gPressEnter, &NullCharacter);
+ } while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);
+
+ gBS->FreePool (TempString);
+ gBS->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) {
+ for (Index = 0; StringPtr[Index] != CHAR_NULL; Index++) {
+ TempString[Index] = StringPtr[Index];
+ }
+ //
+ // Effectively truncate string by 1 character
+ //
+ TempString[Index - 1] = CHAR_NULL;
+ StrCpy (StringPtr, TempString);
+ }
+
+ 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)) {
+ StrnCpy (StringPtr, &Key.UnicodeChar, 1);
+ StrnCpy (TempString, &Key.UnicodeChar, 1);
+ } else if ((GetStringWidth (StringPtr) < ((Maximum + 1) * sizeof (CHAR16))) && (Key.UnicodeChar != CHAR_BACKSPACE)) {
+ KeyPad[0] = Key.UnicodeChar;
+ KeyPad[1] = CHAR_NULL;
+ StrCat (StringPtr, KeyPad);
+ StrCat (TempString, KeyPad);
+ }
+
+ //
+ // 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) {
+ PrintChar (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 + GetStringWidth (StringPtr) / 2, Top + 3);
+ } while (TRUE);
+
+}
+
+
+/**
+ This routine reads a numeric value from the user input.
+
+ @param Selection Pointer to current selection.
+ @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_SELECTION *Selection,
+ IN UI_MENU_OPTION *MenuOption
+ )
+{
+ EFI_STATUS Status;
+ UINTN Column;
+ UINTN Row;
+ CHAR16 InputText[23];
+ CHAR16 FormattedNumber[22];
+ UINT64 PreviousNumber[20];
+ UINTN Count;
+ UINTN Loop;
+ BOOLEAN ManualInput;
+ BOOLEAN HexInput;
+ 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_BROWSER_FORM *Form;
+ FORM_BROWSER_FORMSET *FormSet;
+ FORM_BROWSER_STATEMENT *Question;
+
+ Column = MenuOption->OptCol;
+ Row = MenuOption->Row;
+ PreviousNumber[0] = 0;
+ Count = 0;
+ InputWidth = 0;
+ Digital = 0;
+
+ FormSet = Selection->FormSet;
+ Form = Selection->Form;
+ Question = MenuOption->ThisTag;
+ QuestionValue = &Question->HiiValue;
+ Step = Question->Step;
+ Minimum = Question->Minimum;
+ Maximum = Question->Maximum;
+
+ if ((Question->Operand == EFI_IFR_DATE_OP) || (Question->Operand == EFI_IFR_TIME_OP)) {
+ DateOrTime = TRUE;
+ } else {
+ DateOrTime = FALSE;
+ }
+
+ //
+ // Prepare Value to be edit
+ //
+ EraseLen = 0;
+ EditValue = 0;
+ if (Question->Operand == 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:
+ Maximum = 31;
+ 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->Operand == 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 {
+ //
+ // Numeric
+ //
+ EraseLen = gOptionBlockWidth;
+ EditValue = QuestionValue->Value.u64;
+ if (Maximum == 0) {
+ Maximum = (UINT64) -1;
+ }
+ }
+
+ if (Step == 0) {
+ ManualInput = TRUE;
+ } else {
+ ManualInput = FALSE;
+ }
+
+ if ((Question->Operand == EFI_IFR_NUMERIC_OP) &&
+ ((Question->Flags & EFI_IFR_DISPLAY) == EFI_IFR_DISPLAY_UINT_HEX)) {
+ HexInput = TRUE;
+ } else {
+ HexInput = FALSE;
+ }
+
+ if (ManualInput) {
+ if (HexInput) {
+ InputWidth = Question->StorageWidth * 2;
+ } else {
+ switch (Question->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;
+ }
+ }
+
+ InputText[0] = LEFT_NUMERIC_DELIMITER;
+ SetUnicodeMem (InputText + 1, InputWidth, L' ');
+ InputText[InputWidth + 1] = RIGHT_NUMERIC_DELIMITER;
+ InputText[InputWidth + 2] = L'\0';
+
+ PrintAt (Column, Row, InputText);
+ 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;
+ }
+
+ Status = WaitForKeyStroke (&Key);
+
+TheKey2:
+ switch (Key.UnicodeChar) {
+
+ case '+':
+ case '-':
+ if (Key.UnicodeChar == '+') {
+ Key.ScanCode = SCAN_RIGHT;
+ } else {
+ Key.ScanCode = SCAN_LEFT;
+ }
+ Key.UnicodeChar = CHAR_NULL;
+ goto TheKey2;
+
+ case CHAR_NULL:
+ switch (Key.ScanCode) {
+ case SCAN_LEFT:
+ case SCAN_RIGHT:
+ if (DateOrTime) {
+ //
+ // 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 (!ManualInput) {
+ if (Key.ScanCode == SCAN_LEFT) {
+ if (EditValue > Step) {
+ EditValue = EditValue - Step;
+ } else {
+ EditValue = Minimum;
+ }
+ } else if (Key.ScanCode == SCAN_RIGHT) {
+ EditValue = EditValue + Step;
+ if (EditValue > Maximum) {
+ EditValue = Maximum;
+ }
+ }
+
+ ZeroMem (FormattedNumber, 21 * sizeof (CHAR16));
+ if (Question->Operand == EFI_IFR_DATE_OP) {
+ if (MenuOption->Sequence == 2) {
+ //
+ // Year
+ //
+ UnicodeSPrint (FormattedNumber, 21 * sizeof (CHAR16), L"%04d", EditValue);
+ } else {
+ //
+ // Month/Day
+ //
+ UnicodeSPrint (FormattedNumber, 21 * sizeof (CHAR16), L"%02d", EditValue);
+ }
+
+ if (MenuOption->Sequence == 0) {
+ FormattedNumber[EraseLen - 2] = DATE_SEPARATOR;
+ } else if (MenuOption->Sequence == 1) {
+ FormattedNumber[EraseLen - 1] = DATE_SEPARATOR;
+ }
+ } else if (Question->Operand == EFI_IFR_TIME_OP) {
+ UnicodeSPrint (FormattedNumber, 21 * sizeof (CHAR16), L"%02d", EditValue);
+
+ if (MenuOption->Sequence == 0) {
+ FormattedNumber[EraseLen - 2] = TIME_SEPARATOR;
+ } else if (MenuOption->Sequence == 1) {
+ FormattedNumber[EraseLen - 1] = TIME_SEPARATOR;
+ }
+ } else {
+ QuestionValue->Value.u64 = EditValue;
+ PrintFormattedNumber (Question, FormattedNumber, 21 * sizeof (CHAR16));
+ }
+
+ gST->ConOut->SetAttribute (gST->ConOut, FIELD_TEXT | FIELD_BACKGROUND);
+ for (Loop = 0; Loop < EraseLen; Loop++) {
+ PrintAt (MenuOption->OptCol + Loop, MenuOption->Row, L" ");
+ }
+ gST->ConOut->SetAttribute (gST->ConOut, FIELD_TEXT_HIGHLIGHT | FIELD_BACKGROUND_HIGHLIGHT);
+
+ if (MenuOption->Sequence == 0) {
+ PrintCharAt (MenuOption->OptCol, Row, LEFT_NUMERIC_DELIMITER);
+ Column = MenuOption->OptCol + 1;
+ }
+
+ PrintStringAt (Column, Row, FormattedNumber);
+
+ if (!DateOrTime || MenuOption->Sequence == 2) {
+ PrintChar (RIGHT_NUMERIC_DELIMITER);
+ }
+ }
+ break;
+
+ case SCAN_UP:
+ case SCAN_DOWN:
+ goto EnterCarriageReturn;
+
+ case SCAN_ESC:
+ return EFI_DEVICE_ERROR;
+
+ default:
+ break;
+ }
+
+ break;
+
+EnterCarriageReturn:
+
+ case CHAR_CARRIAGE_RETURN:
+ //
+ // Store Edit value back to Question
+ //
+ if (Question->Operand == 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->Operand == 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;
+ }
+
+ //
+ // Check to see if the Value is something reasonable against consistency limitations.
+ // If not, let's kick the error specified.
+ //
+ Status = ValidateQuestion (FormSet, Form, Question, EFI_HII_EXPRESSION_INCONSISTENT_IF);
+ if (EFI_ERROR (Status)) {
+ //
+ // Input value is not valid, restore Question Value
+ //
+ GetQuestionValue (FormSet, Form, Question, TRUE);
+ } else {
+ SetQuestionValue (FormSet, Form, Question, TRUE);
+ if (!DateOrTime || (Question->Storage != NULL)) {
+ //
+ // NV flag is unnecessary for RTC type of Date/Time
+ //
+ UpdateStatusBar (NV_UPDATE_REQUIRED, Question->QuestionFlags, TRUE);
+ }
+ }
+
+ return Status;
+ break;
+
+ case CHAR_BACKSPACE:
+ if (ManualInput) {
+ if (Count == 0) {
+ break;
+ }
+ //
+ // Remove a character
+ //
+ EditValue = PreviousNumber[Count - 1];
+ UpdateStatusBar (INPUT_ERROR, Question->QuestionFlags, FALSE);
+ Count--;
+ Column--;
+ PrintAt (Column, Row, L" ");
+ }
+ break;
+
+ default:
+ if (ManualInput) {
+ if (HexInput) {
+ if (!R8_IsHexDigit (&Digital, Key.UnicodeChar)) {
+ UpdateStatusBar (INPUT_ERROR, Question->QuestionFlags, TRUE);
+ break;
+ }
+ } else {
+ if (Key.UnicodeChar > L'9' || Key.UnicodeChar < L'0') {
+ UpdateStatusBar (INPUT_ERROR, Question->QuestionFlags, 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 {
+ EditValue = MultU64x32 (EditValue, 10) + (Key.UnicodeChar - L'0');
+ }
+ } else {
+ if (HexInput) {
+ EditValue = Digital;
+ } else {
+ EditValue = Key.UnicodeChar - L'0';
+ }
+ }
+
+ if (EditValue > Maximum) {
+ UpdateStatusBar (INPUT_ERROR, Question->QuestionFlags, TRUE);
+ EditValue = PreviousNumber[Count];
+ break;
+ } else {
+ UpdateStatusBar (INPUT_ERROR, Question->QuestionFlags, FALSE);
+ }
+
+ Count++;
+ PreviousNumber[Count] = EditValue;
+
+ PrintCharAt (Column, Row, Key.UnicodeChar);
+ Column++;
+ }
+ break;
+ }
+ } while (TRUE);
+
+}
+
+
+/**
+ Get selection for OneOf and OrderedList (Left/Right will be ignored).
+
+ @param Selection Pointer to current selection.
+ @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_SELECTION *Selection,
+ IN UI_MENU_OPTION *MenuOption
+ )
+{
+ EFI_STATUS Status;
+ 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;
+ EFI_HII_VALUE HiiValue;
+ EFI_HII_VALUE *HiiValueArray;
+ UINTN OptionCount;
+ QUESTION_OPTION *OneOfOption;
+ QUESTION_OPTION *CurrentOption;
+ FORM_BROWSER_STATEMENT *Question;
+
+ DimensionsWidth = gScreenDimensions.RightColumn - gScreenDimensions.LeftColumn;
+
+ ValueArray = NULL;
+ CurrentOption = NULL;
+ ShowDownArrow = FALSE;
+ ShowUpArrow = FALSE;
+
+ StringPtr = AllocateZeroPool ((gOptionBlockWidth + 1) * 2);
+ ASSERT (StringPtr);
+
+ Question = MenuOption->ThisTag;
+ if (Question->Operand == EFI_IFR_ORDERED_LIST_OP) {
+ ValueArray = Question->BufferValue;
+ OrderedList = TRUE;
+ } else {
+ OrderedList = FALSE;
+ }
+
+ //
+ // Calculate Option count
+ //
+ if (OrderedList) {
+ for (Index = 0; Index < Question->MaxContainers; Index++) {
+ if (ValueArray[Index] == 0) {
+ break;
+ }
+ }
+
+ OptionCount = Index;
+ } else {
+ OptionCount = 0;
+ Link = GetFirstNode (&Question->OptionListHead);
+ while (!IsNull (&Question->OptionListHead, Link)) {
+ OneOfOption = QUESTION_OPTION_FROM_LINK (Link);
+
+ OptionCount++;
+
+ Link = GetNextNode (&Question->OptionListHead, Link);
+ }
+ }
+
+ //
+ // Prepare HiiValue array
+ //
+ HiiValueArray = AllocateZeroPool (OptionCount * sizeof (EFI_HII_VALUE));
+ ASSERT (HiiValueArray != NULL);
+ Link = GetFirstNode (&Question->OptionListHead);
+ for (Index = 0; Index < OptionCount; Index++) {
+ if (OrderedList) {
+ HiiValueArray[Index].Type = EFI_IFR_TYPE_NUM_SIZE_8;
+ HiiValueArray[Index].Value.u8 = ValueArray[Index];
+ } else {
+ OneOfOption = QUESTION_OPTION_FROM_LINK (Link);
+ CopyMem (&HiiValueArray[Index], &OneOfOption->Value, sizeof (EFI_HII_VALUE));
+ Link = GetNextNode (&Question->OptionListHead, Link);
+ }
+ }
+
+ //
+ // Move Suppressed Option to list tail
+ //
+ PopUpMenuLines = 0;
+ for (Index = 0; Index < OptionCount; Index++) {
+ OneOfOption = ValueToOption (Question, &HiiValueArray[OptionCount - Index - 1]);
+ if (OneOfOption == NULL) {
+ return EFI_NOT_FOUND;
+ }
+
+ RemoveEntryList (&OneOfOption->Link);
+
+ if ((OneOfOption->SuppressExpression != NULL) &&
+ (OneOfOption->SuppressExpression->Result.Value.b)) {
+ //
+ // This option is suppressed, insert to tail
+ //
+ InsertTailList (&Question->OptionListHead, &OneOfOption->Link);
+ } else {
+ //
+ // Insert to head
+ //
+ InsertHeadList (&Question->OptionListHead, &OneOfOption->Link);
+
+ PopUpMenuLines++;
+ }
+ }
+
+ //
+ // 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 = QUESTION_OPTION_FROM_LINK (Link);
+
+ StringPtr = GetToken (OneOfOption->Text, MenuOption->Handle);
+ if (StrLen (StringPtr) > PopUpWidth) {
+ PopUpWidth = StrLen (StringPtr);
+ }
+ gBS->FreePool (StringPtr);
+
+ if (!OrderedList && CompareHiiValue (&Question->HiiValue, &OneOfOption->Value, NULL) == 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, POPUP_TEXT | POPUP_BACKGROUND);
+
+ if ((PopUpWidth + POPUP_FRAME_WIDTH) > DimensionsWidth) {
+ PopUpWidth = DimensionsWidth - POPUP_FRAME_WIDTH;
+ }
+
+ Start = (DimensionsWidth - PopUpWidth - POPUP_FRAME_WIDTH) / 2 + gScreenDimensions.LeftColumn;
+ End = Start + PopUpWidth + POPUP_FRAME_WIDTH;
+ Top = gScreenDimensions.TopRow + NONE_FRONT_PAGE_HEADER_HEIGHT;
+ Bottom = gScreenDimensions.BottomRow - STATUS_BAR_HEIGHT - FOOTER_HEIGHT - 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, POPUP_TEXT | POPUP_BACKGROUND);
+
+ //
+ // 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;
+ }
+
+ PrintChar (Character);
+ }
+
+ Character = BOXDRAW_DOWN_LEFT;
+ PrintChar (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 = QUESTION_OPTION_FROM_LINK (Link);
+ Link = GetNextNode (&Question->OptionListHead, Link);
+
+ StringPtr = GetToken (OneOfOption->Text, MenuOption->Handle);
+ //
+ // 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)));
+ gBS->FreePool (StringPtr);
+ StringPtr = TempStringPtr;
+ StrCat (StringPtr, L"...");
+ }
+
+ if (Index == HighlightOptionIndex) {
+ //
+ // Highlight the selected one
+ //
+ CurrentOption = OneOfOption;
+
+ gST->ConOut->SetAttribute (gST->ConOut, PICKLIST_HIGHLIGHT_TEXT | PICKLIST_HIGHLIGHT_BACKGROUND);
+ PrintStringAt (Start + 2, Index2, StringPtr);
+ gST->ConOut->SetAttribute (gST->ConOut, POPUP_TEXT | POPUP_BACKGROUND);
+ } else {
+ gST->ConOut->SetAttribute (gST->ConOut, POPUP_TEXT | POPUP_BACKGROUND);
+ PrintStringAt (Start + 2, Index2, StringPtr);
+ }
+
+ Index2++;
+ gBS->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;
+ }
+
+ PrintChar (Character);
+ }
+
+ Character = BOXDRAW_UP_LEFT;
+ PrintChar (Character);
+
+ //
+ // Get User selection
+ //
+ Key.UnicodeChar = CHAR_NULL;
+ if ((gDirection == SCAN_UP) || (gDirection == SCAN_DOWN)) {
+ Key.ScanCode = gDirection;
+ gDirection = 0;
+ goto TheKey;
+ }
+
+ Status = 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--;
+
+ 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++;
+
+ 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 = EFI_IFR_TYPE_NUM_SIZE_8;
+ HiiValue.Value.u64 = 0;
+ for (Index = 0; Index < Question->MaxContainers; Index++) {
+ HiiValue.Value.u8 = ValueArray[Index];
+ if (HiiValue.Value.u8) {
+ break;
+ }
+
+ OneOfOption = ValueToOption (Question, &HiiValue);
+ if (OneOfOption == NULL) {
+ return EFI_NOT_FOUND;
+ }
+
+ RemoveEntryList (&OneOfOption->Link);
+ InsertTailList (&Question->OptionListHead, &OneOfOption->Link);
+ }
+ }
+
+ gBS->FreePool (HiiValueArray);
+ return EFI_DEVICE_ERROR;
+
+ default:
+ break;
+ }
+
+ break;
+
+ case CHAR_CARRIAGE_RETURN:
+ //
+ // return the current selection
+ //
+ if (OrderedList) {
+ Index = 0;
+ Link = GetFirstNode (&Question->OptionListHead);
+ while (!IsNull (&Question->OptionListHead, Link)) {
+ OneOfOption = QUESTION_OPTION_FROM_LINK (Link);
+
+ Question->BufferValue[Index] = OneOfOption->Value.Value.u8;
+
+ Index++;
+ if (Index > Question->MaxContainers) {
+ break;
+ }
+
+ Link = GetNextNode (&Question->OptionListHead, Link);
+ }
+ } else {
+ CopyMem (&Question->HiiValue, &CurrentOption->Value, sizeof (EFI_HII_VALUE));
+ }
+
+ gST->ConOut->SetAttribute (gST->ConOut, SavedAttribute);
+ gBS->FreePool (HiiValueArray);
+
+ Status = ValidateQuestion (Selection->FormSet, Selection->Form, Question, EFI_HII_EXPRESSION_INCONSISTENT_IF);
+ if (EFI_ERROR (Status)) {
+ //
+ // Input value is not valid, restore Question Value
+ //
+ GetQuestionValue (Selection->FormSet, Selection->Form, Question, TRUE);
+ } else {
+ SetQuestionValue (Selection->FormSet, Selection->Form, Question, TRUE);
+ UpdateStatusBar (NV_UPDATE_REQUIRED, Question->QuestionFlags, TRUE);
+ }
+
+ return Status;
+
+ default:
+ break;
+ }
+ } while (TRUE);
+
+}
+
+EFI_STATUS
+WaitForKeyStroke (
+ OUT EFI_INPUT_KEY *Key
+ )
+{
+ EFI_STATUS Status;
+
+ do {
+ UiWaitForSingleEvent (gST->ConIn->WaitForKey, 0, 0);
+ Status = gST->ConIn->ReadKeyStroke (gST->ConIn, Key);
+ } while (EFI_ERROR(Status));
+
+ return Status;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-16 17:50:58 +0000