diff options
| author | Eric Dong <eric.dong@intel.com> | 2013-08-12 02:19:56 +0000 |
|---|---|---|
| committer | ydong10 <ydong10@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-08-12 02:19:56 +0000 |
| commit | 7c6c064ca8ebb5baf5104e8a4764cd3c19ef8bf1 (patch) | |
| tree | cecd3553e4546a79345539e143df880bf3b7b91b /MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c | |
| parent | 253616154506e17ebd02c076f240748f57e36ac2 (diff) | |
| download | edk2-platforms-7c6c064ca8ebb5baf5104e8a4764cd3c19ef8bf1.tar.xz | |
Update Browser to provide the customization possibilities.
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14540 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c')
| -rw-r--r-- | MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c | 3200 |
1 files changed, 3200 insertions, 0 deletions
diff --git a/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c b/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c new file mode 100644 index 0000000000..f6322293fc --- /dev/null +++ b/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c @@ -0,0 +1,3200 @@ +/** @file
+Entry and initialization module for the browser.
+
+Copyright (c) 2007 - 2013, 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"
+
+//
+// Search table for UiDisplayMenu()
+//
+SCAN_CODE_TO_SCREEN_OPERATION gScanCodeToOperation[] = {
+ {
+ SCAN_UP,
+ UiUp,
+ },
+ {
+ SCAN_DOWN,
+ UiDown,
+ },
+ {
+ SCAN_PAGE_UP,
+ UiPageUp,
+ },
+ {
+ SCAN_PAGE_DOWN,
+ UiPageDown,
+ },
+ {
+ SCAN_ESC,
+ UiReset,
+ },
+ {
+ SCAN_LEFT,
+ UiLeft,
+ },
+ {
+ SCAN_RIGHT,
+ UiRight,
+ }
+};
+
+UINTN mScanCodeNumber = sizeof (gScanCodeToOperation) / sizeof (gScanCodeToOperation[0]);
+
+SCREEN_OPERATION_T0_CONTROL_FLAG gScreenOperationToControlFlag[] = {
+ {
+ UiNoOperation,
+ CfUiNoOperation,
+ },
+ {
+ UiSelect,
+ CfUiSelect,
+ },
+ {
+ UiUp,
+ CfUiUp,
+ },
+ {
+ UiDown,
+ CfUiDown,
+ },
+ {
+ UiLeft,
+ CfUiLeft,
+ },
+ {
+ UiRight,
+ CfUiRight,
+ },
+ {
+ UiReset,
+ CfUiReset,
+ },
+ {
+ UiPageUp,
+ CfUiPageUp,
+ },
+ {
+ UiPageDown,
+ CfUiPageDown
+ },
+ {
+ UiHotKey,
+ CfUiHotKey
+ }
+};
+
+EFI_GUID gDisplayEngineGuid = {
+ 0xE38C1029, 0xE38F, 0x45b9, {0x8F, 0x0D, 0xE2, 0xE6, 0x0B, 0xC9, 0xB2, 0x62}
+};
+
+UINTN gSequence;
+EFI_SCREEN_DESCRIPTOR gStatementDimensions;
+EFI_SCREEN_DESCRIPTOR gOldStatementDimensions = {0};
+BOOLEAN mStatementLayoutIsChanged = TRUE;
+USER_INPUT *gUserInput;
+FORM_DISPLAY_ENGINE_FORM *gFormData;
+EFI_HII_HANDLE gHiiHandle;
+UINT16 gDirection;
+LIST_ENTRY gMenuOption;
+DISPLAY_HIGHLIGHT_MENU_INFO gHighligthMenuInfo = {0};
+
+//
+// Browser Global Strings
+//
+CHAR16 *gFormNotFound;
+CHAR16 *gNoSubmitIf;
+CHAR16 *gBrwoserError;
+CHAR16 *gSaveFailed;
+CHAR16 *gPromptForData;
+CHAR16 *gPromptForPassword;
+CHAR16 *gPromptForNewPassword;
+CHAR16 *gConfirmPassword;
+CHAR16 *gConfirmError;
+CHAR16 *gPassowordInvalid;
+CHAR16 *gPressEnter;
+CHAR16 *gEmptyString;
+CHAR16 *gMiniString;
+CHAR16 *gOptionMismatch;
+CHAR16 *gFormSuppress;
+CHAR16 *gProtocolNotFound;
+
+CHAR16 gPromptBlockWidth;
+CHAR16 gOptionBlockWidth;
+CHAR16 gHelpBlockWidth;
+CHAR16 *mUnknownString;
+
+FORM_DISPLAY_DRIVER_PRIVATE_DATA mPrivateData = {
+ FORM_DISPLAY_DRIVER_SIGNATURE,
+ NULL,
+ {
+ FormDisplay,
+ ClearDisplayPage,
+ ConfirmDataChange
+ }
+};
+
+
+/**
+ Get the string based on the StringId and HII Package List Handle.
+
+ @param Token The String's ID.
+ @param HiiHandle The package list in the HII database to search for
+ the specified string.
+
+ @return The output string.
+
+**/
+CHAR16 *
+GetToken (
+ IN EFI_STRING_ID Token,
+ IN EFI_HII_HANDLE HiiHandle
+ )
+{
+ EFI_STRING String;
+
+ String = HiiGetString (HiiHandle, Token, NULL);
+ if (String == NULL) {
+ String = AllocateCopyPool (StrSize (mUnknownString), mUnknownString);
+ ASSERT (String != NULL);
+ }
+
+ return (CHAR16 *) String;
+}
+
+
+/**
+ Initialize the HII String Token to the correct values.
+
+**/
+VOID
+InitializeDisplayStrings (
+ VOID
+ )
+{
+ mUnknownString = GetToken (STRING_TOKEN (UNKNOWN_STRING), gHiiHandle);
+ gSaveFailed = GetToken (STRING_TOKEN (SAVE_FAILED), gHiiHandle);
+ gPromptForData = GetToken (STRING_TOKEN (PROMPT_FOR_DATA), gHiiHandle);
+ gPromptForPassword = GetToken (STRING_TOKEN (PROMPT_FOR_PASSWORD), gHiiHandle);
+ gPromptForNewPassword = GetToken (STRING_TOKEN (PROMPT_FOR_NEW_PASSWORD), gHiiHandle);
+ gConfirmPassword = GetToken (STRING_TOKEN (CONFIRM_PASSWORD), gHiiHandle);
+ gConfirmError = GetToken (STRING_TOKEN (CONFIRM_ERROR), gHiiHandle);
+ gPassowordInvalid = GetToken (STRING_TOKEN (PASSWORD_INVALID), gHiiHandle);
+ gPressEnter = GetToken (STRING_TOKEN (PRESS_ENTER), gHiiHandle);
+ gEmptyString = GetToken (STRING_TOKEN (EMPTY_STRING), gHiiHandle);
+ gMiniString = GetToken (STRING_TOKEN (MINI_STRING), gHiiHandle);
+ gOptionMismatch = GetToken (STRING_TOKEN (OPTION_MISMATCH), gHiiHandle);
+ gFormSuppress = GetToken (STRING_TOKEN (FORM_SUPPRESSED), gHiiHandle);
+ gProtocolNotFound = GetToken (STRING_TOKEN (PROTOCOL_NOT_FOUND), gHiiHandle);
+ gFormNotFound = GetToken (STRING_TOKEN (STATUS_BROWSER_FORM_NOT_FOUND), gHiiHandle);
+ gNoSubmitIf = GetToken (STRING_TOKEN (STATUS_BROWSER_NO_SUBMIT_IF), gHiiHandle);
+ gBrwoserError = GetToken (STRING_TOKEN (STATUS_BROWSER_ERROR), gHiiHandle);
+}
+
+/**
+ Free up the resource allocated for all strings required
+ by Setup Browser.
+
+**/
+VOID
+FreeDisplayStrings (
+ VOID
+ )
+{
+ FreePool (mUnknownString);
+ FreePool (gEmptyString);
+ FreePool (gSaveFailed);
+ FreePool (gPromptForData);
+ FreePool (gPromptForPassword);
+ FreePool (gPromptForNewPassword);
+ FreePool (gConfirmPassword);
+ FreePool (gConfirmError);
+ FreePool (gPassowordInvalid);
+ FreePool (gPressEnter);
+ FreePool (gMiniString);
+ FreePool (gOptionMismatch);
+ FreePool (gFormSuppress);
+ FreePool (gProtocolNotFound);
+ FreePool (gBrwoserError);
+ FreePool (gNoSubmitIf);
+ FreePool (gFormNotFound);
+}
+
+/**
+ Get prompt string id from the opcode data buffer.
+
+ @param OpCode The input opcode buffer.
+
+ @return The prompt string id.
+
+**/
+EFI_STRING_ID
+GetPrompt (
+ IN EFI_IFR_OP_HEADER *OpCode
+ )
+{
+ EFI_IFR_STATEMENT_HEADER *Header;
+
+ if (OpCode->Length <= sizeof (EFI_IFR_OP_HEADER)) {
+ return 0;
+ }
+
+ Header = (EFI_IFR_STATEMENT_HEADER *) (OpCode + 1);
+
+ return Header->Prompt;
+}
+
+/**
+ Get the supported width for a particular op-code
+
+ @param Statement The curent statement.
+
+ @return Returns the number of CHAR16 characters that is support.
+
+**/
+UINT16
+GetWidth (
+ IN FORM_DISPLAY_ENGINE_STATEMENT *Statement
+ )
+{
+ CHAR16 *String;
+ UINTN Size;
+ UINT16 Width;
+ EFI_IFR_TEXT *TestOp;
+
+ Size = 0;
+
+ //
+ // See if the second text parameter is really NULL
+ //
+ if (Statement->OpCode->OpCode == EFI_IFR_TEXT_OP) {
+ TestOp = (EFI_IFR_TEXT *) Statement->OpCode;
+ if (TestOp->TextTwo != 0) {
+ String = GetToken (TestOp->TextTwo, gFormData->HiiHandle);
+ Size = StrLen (String);
+ FreePool (String);
+ }
+ }
+
+ if ((Statement->OpCode->OpCode == EFI_IFR_SUBTITLE_OP) ||
+ (Statement->OpCode->OpCode == EFI_IFR_REF_OP) ||
+ (Statement->OpCode->OpCode == EFI_IFR_PASSWORD_OP) ||
+ (Statement->OpCode->OpCode == EFI_IFR_ACTION_OP) ||
+ (Statement->OpCode->OpCode == EFI_IFR_RESET_BUTTON_OP) ||
+ //
+ // Allow a wide display if text op-code and no secondary text op-code
+ //
+ ((Statement->OpCode->OpCode == EFI_IFR_TEXT_OP) && (Size == 0))
+ ) {
+ Width = (UINT16) (gPromptBlockWidth + gOptionBlockWidth);
+ } else {
+ Width = (UINT16) gPromptBlockWidth;
+ }
+
+ return (UINT16) (Width - LEFT_SKIPPED_COLUMNS);
+}
+
+/**
+ Will copy LineWidth amount of a string in the OutputString buffer and return the
+ number of CHAR16 characters that were copied into the OutputString buffer.
+ The output string format is:
+ Glyph Info + String info + '\0'.
+
+ In the code, it deals \r,\n,\r\n same as \n\r, also it not process the \r or \g.
+
+ @param InputString String description for this option.
+ @param LineWidth Width of the desired string to extract in CHAR16
+ characters
+ @param GlyphWidth The glyph width of the begin of the char in the string.
+ @param Index Where in InputString to start the copy process
+ @param OutputString Buffer to copy the string into
+
+ @return Returns the number of CHAR16 characters that were copied into the OutputString
+ buffer, include extra glyph info and '\0' info.
+
+**/
+UINT16
+GetLineByWidth (
+ IN CHAR16 *InputString,
+ IN UINT16 LineWidth,
+ IN OUT UINT16 *GlyphWidth,
+ IN OUT UINTN *Index,
+ OUT CHAR16 **OutputString
+ )
+{
+ UINT16 StrOffset;
+ UINT16 GlyphOffset;
+ UINT16 OriginalGlyphWidth;
+ BOOLEAN ReturnFlag;
+ UINT16 LastSpaceOffset;
+ UINT16 LastGlyphWidth;
+
+ if (InputString == NULL || Index == NULL || OutputString == NULL) {
+ return 0;
+ }
+
+ if (LineWidth == 0 || *GlyphWidth == 0) {
+ return 0;
+ }
+
+ //
+ // Save original glyph width.
+ //
+ OriginalGlyphWidth = *GlyphWidth;
+ LastGlyphWidth = OriginalGlyphWidth;
+ ReturnFlag = FALSE;
+ LastSpaceOffset = 0;
+
+ //
+ // 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.
+ // To avoid displaying this empty line in screen, just skip the two CHARs here.
+ //
+ if ((InputString[*Index] == NARROW_CHAR) && (InputString[*Index + 1] == CHAR_CARRIAGE_RETURN)) {
+ *Index = *Index + 2;
+ }
+
+ //
+ // Fast-forward the string and see if there is a carriage-return in the string
+ //
+ for (StrOffset = 0, GlyphOffset = 0; GlyphOffset <= LineWidth; StrOffset++) {
+ switch (InputString[*Index + StrOffset]) {
+ case NARROW_CHAR:
+ *GlyphWidth = 1;
+ break;
+
+ case WIDE_CHAR:
+ *GlyphWidth = 2;
+ break;
+
+ case CHAR_CARRIAGE_RETURN:
+ case CHAR_LINEFEED:
+ case CHAR_NULL:
+ ReturnFlag = TRUE;
+ break;
+
+ default:
+ GlyphOffset = GlyphOffset + *GlyphWidth;
+
+ //
+ // Record the last space info in this line. Will be used in rewind.
+ //
+ if ((InputString[*Index + StrOffset] == CHAR_SPACE) && (GlyphOffset <= LineWidth)) {
+ LastSpaceOffset = StrOffset;
+ LastGlyphWidth = *GlyphWidth;
+ }
+ break;
+ }
+
+ if (ReturnFlag) {
+ break;
+ }
+ }
+
+ //
+ // Rewind the string from the maximum size until we see a space to break the line
+ //
+ if (GlyphOffset > LineWidth) {
+ //
+ // Rewind the string to last space char in this line.
+ //
+ if (LastSpaceOffset != 0) {
+ StrOffset = LastSpaceOffset;
+ *GlyphWidth = LastGlyphWidth;
+ } else {
+ //
+ // Roll back to last char in the line width.
+ //
+ StrOffset--;
+ }
+ }
+
+ //
+ // The CHAR_NULL has process last time, this time just return 0 to stand for the end.
+ //
+ if (StrOffset == 0 && (InputString[*Index + StrOffset] == CHAR_NULL)) {
+ return 0;
+ }
+
+ //
+ // Need extra glyph info and '\0' info, so +2.
+ //
+ *OutputString = AllocateZeroPool (((UINTN) (StrOffset + 2) * sizeof(CHAR16)));
+ if (*OutputString == NULL) {
+ return 0;
+ }
+
+ //
+ // Save the glyph info at the begin of the string, will used by Print function.
+ //
+ if (OriginalGlyphWidth == 1) {
+ *(*OutputString) = NARROW_CHAR;
+ } else {
+ *(*OutputString) = WIDE_CHAR;
+ }
+
+ CopyMem ((*OutputString) + 1, &InputString[*Index], StrOffset * sizeof(CHAR16));
+
+ if (InputString[*Index + StrOffset] == CHAR_SPACE) {
+ //
+ // Skip the space info at the begin of next line.
+ //
+ *Index = (UINT16) (*Index + StrOffset + 1);
+ } else if (InputString[*Index + StrOffset] == CHAR_LINEFEED) {
+ //
+ // Skip the /n or /n/r info.
+ //
+ if (InputString[*Index + StrOffset + 1] == CHAR_CARRIAGE_RETURN) {
+ *Index = (UINT16) (*Index + StrOffset + 2);
+ } else {
+ *Index = (UINT16) (*Index + StrOffset + 1);
+ }
+ } else if (InputString[*Index + StrOffset] == CHAR_CARRIAGE_RETURN) {
+ //
+ // Skip the /r or /r/n info.
+ //
+ if (InputString[*Index + StrOffset + 1] == CHAR_LINEFEED) {
+ *Index = (UINT16) (*Index + StrOffset + 2);
+ } else {
+ *Index = (UINT16) (*Index + StrOffset + 1);
+ }
+ } else {
+ *Index = (UINT16) (*Index + StrOffset);
+ }
+
+ //
+ // Include extra glyph info and '\0' info, so +2.
+ //
+ return StrOffset + 2;
+}
+
+/**
+ Add one menu option by specified description and context.
+
+ @param Statement Statement of this Menu Option.
+ @param MenuItemCount The index for this Option in the Menu.
+ @param NestIn Whether this statement is nest in another statement.
+
+**/
+VOID
+UiAddMenuOption (
+ IN FORM_DISPLAY_ENGINE_STATEMENT *Statement,
+ IN UINT16 *MenuItemCount,
+ IN BOOLEAN NestIn
+ )
+{
+ UI_MENU_OPTION *MenuOption;
+ UINTN Index;
+ UINTN Count;
+ CHAR16 *String;
+ UINT16 NumberOfLines;
+ UINT16 GlyphWidth;
+ UINT16 Width;
+ UINTN ArrayEntry;
+ CHAR16 *OutputString;
+ EFI_STRING_ID PromptId;
+
+ NumberOfLines = 1;
+ ArrayEntry = 0;
+ GlyphWidth = 1;
+ Count = 1;
+ MenuOption = NULL;
+
+ PromptId = GetPrompt (Statement->OpCode);
+ ASSERT (PromptId != 0);
+
+ String = GetToken (PromptId, gFormData->HiiHandle);
+ ASSERT (String != NULL);
+
+ Width = GetWidth (Statement);
+ for (; GetLineByWidth (String, Width, &GlyphWidth,&ArrayEntry, &OutputString) != 0x0000;) {
+ //
+ // If there is more string to process print on the next row and increment the Skip value
+ //
+ if (StrLen (&String[ArrayEntry]) != 0) {
+ NumberOfLines++;
+ }
+ FreePool (OutputString);
+ }
+
+ if (Statement->OpCode->OpCode == EFI_IFR_DATE_OP || Statement->OpCode->OpCode == EFI_IFR_TIME_OP) {
+ //
+ // Add three MenuOptions for Date/Time
+ // Data format : [01/02/2004] [11:22:33]
+ // Line number : 0 0 1 0 0 1
+ //
+ NumberOfLines = 0;
+ Count = 3;
+ }
+
+ for (Index = 0; Index < Count; Index++) {
+ MenuOption = AllocateZeroPool (sizeof (UI_MENU_OPTION));
+ ASSERT (MenuOption);
+
+ MenuOption->Signature = UI_MENU_OPTION_SIGNATURE;
+ MenuOption->Description = String;
+ MenuOption->Handle = gFormData->HiiHandle;
+ MenuOption->ThisTag = Statement;
+ MenuOption->NestInStatement = NestIn;
+ MenuOption->EntryNumber = *MenuItemCount;
+
+ if (Index == 2) {
+ //
+ // Override LineNumber for the MenuOption in Date/Time sequence
+ //
+ MenuOption->Skip = 1;
+ } else {
+ MenuOption->Skip = NumberOfLines;
+ }
+ MenuOption->Sequence = Index;
+
+ if ((Statement->Attribute & HII_DISPLAY_GRAYOUT) != 0) {
+ MenuOption->GrayOut = TRUE;
+ } else {
+ MenuOption->GrayOut = FALSE;
+ }
+
+ if ((Statement->Attribute & HII_DISPLAY_LOCK) != 0 || (gFormData->Attribute & HII_DISPLAY_LOCK) != 0) {
+ MenuOption->GrayOut = TRUE;
+ }
+
+ //
+ // If the form or the question has the lock attribute, deal same as grayout.
+ //
+ if ((gFormData->Attribute & HII_DISPLAY_LOCK) != 0 || (Statement->Attribute & HII_DISPLAY_LOCK) != 0) {
+ MenuOption->GrayOut = TRUE;
+ }
+
+ switch (Statement->OpCode->OpCode) {
+ case EFI_IFR_ORDERED_LIST_OP:
+ case EFI_IFR_ONE_OF_OP:
+ case EFI_IFR_NUMERIC_OP:
+ case EFI_IFR_TIME_OP:
+ case EFI_IFR_DATE_OP:
+ case EFI_IFR_CHECKBOX_OP:
+ case EFI_IFR_PASSWORD_OP:
+ case EFI_IFR_STRING_OP:
+ //
+ // User could change the value of these items
+ //
+ MenuOption->IsQuestion = TRUE;
+ break;
+ case EFI_IFR_TEXT_OP:
+ if (FeaturePcdGet (PcdBrowserGrayOutTextStatement)) {
+ //
+ // Initializing GrayOut option as TRUE for Text setup options
+ // so that those options will be Gray in colour and un selectable.
+ //
+ MenuOption->GrayOut = TRUE;
+ }
+ break;
+ default:
+ MenuOption->IsQuestion = FALSE;
+ break;
+ }
+
+ if ((Statement->Attribute & HII_DISPLAY_READONLY) != 0) {
+ MenuOption->ReadOnly = TRUE;
+ if (FeaturePcdGet (PcdBrowerGrayOutReadOnlyMenu)) {
+ MenuOption->GrayOut = TRUE;
+ }
+ }
+
+ InsertTailList (&gMenuOption, &MenuOption->Link);
+ }
+
+ (*MenuItemCount)++;
+}
+
+/**
+ Create the menu list base on the form data info.
+
+**/
+VOID
+ConvertStatementToMenu (
+ VOID
+ )
+{
+ UINT16 MenuItemCount;
+ LIST_ENTRY *Link;
+ LIST_ENTRY *NestLink;
+ FORM_DISPLAY_ENGINE_STATEMENT *Statement;
+ FORM_DISPLAY_ENGINE_STATEMENT *NestStatement;
+
+ MenuItemCount = 0;
+ InitializeListHead (&gMenuOption);
+
+ Link = GetFirstNode (&gFormData->StatementListHead);
+ while (!IsNull (&gFormData->StatementListHead, Link)) {
+ Statement = FORM_DISPLAY_ENGINE_STATEMENT_FROM_LINK (Link);
+ Link = GetNextNode (&gFormData->StatementListHead, Link);
+
+ //
+ // Skip the opcode not recognized by Display core.
+ //
+ if (Statement->OpCode->OpCode == EFI_IFR_GUID_OP) {
+ continue;
+ }
+
+ UiAddMenuOption (Statement, &MenuItemCount, FALSE);
+
+ //
+ // Check the statement nest in this host statement.
+ //
+ NestLink = GetFirstNode (&Statement->NestStatementList);
+ while (!IsNull (&Statement->NestStatementList, NestLink)) {
+ NestStatement = FORM_DISPLAY_ENGINE_STATEMENT_FROM_LINK (NestLink);
+ NestLink = GetNextNode (&Statement->NestStatementList, NestLink);
+
+ UiAddMenuOption (NestStatement, &MenuItemCount, TRUE);
+ }
+ }
+}
+
+/**
+ Count the storage space of a Unicode string.
+
+ This function handles the Unicode string with NARROW_CHAR
+ and WIDE_CHAR control characters. NARROW_HCAR and WIDE_CHAR
+ does not count in the resultant output. If a WIDE_CHAR is
+ hit, then 2 Unicode character will consume an output storage
+ space with size of CHAR16 till a NARROW_CHAR is hit.
+
+ If String is NULL, then ASSERT ().
+
+ @param String The input string to be counted.
+
+ @return Storage space for the input string.
+
+**/
+UINTN
+GetStringWidth (
+ IN CHAR16 *String
+ )
+{
+ UINTN Index;
+ UINTN Count;
+ UINTN IncrementValue;
+
+ ASSERT (String != NULL);
+ if (String == NULL) {
+ return 0;
+ }
+
+ Index = 0;
+ Count = 0;
+ IncrementValue = 1;
+
+ do {
+ //
+ // Advance to the null-terminator or to the first width directive
+ //
+ for (;
+ (String[Index] != NARROW_CHAR) && (String[Index] != WIDE_CHAR) && (String[Index] != 0);
+ Index++, Count = Count + IncrementValue
+ )
+ ;
+
+ //
+ // We hit the null-terminator, we now have a count
+ //
+ if (String[Index] == 0) {
+ break;
+ }
+ //
+ // We encountered a narrow directive - strip it from the size calculation since it doesn't get printed
+ // and also set the flag that determines what we increment by.(if narrow, increment by 1, if wide increment by 2)
+ //
+ if (String[Index] == NARROW_CHAR) {
+ //
+ // Skip to the next character
+ //
+ Index++;
+ IncrementValue = 1;
+ } else {
+ //
+ // Skip to the next character
+ //
+ Index++;
+ IncrementValue = 2;
+ }
+ } while (String[Index] != 0);
+
+ //
+ // Increment by one to include the null-terminator in the size
+ //
+ Count++;
+
+ return Count * sizeof (CHAR16);
+}
+
+/**
+ Base on the input option string to update the skip value for a menu option.
+
+ @param MenuOption The MenuOption to be checked.
+ @param OptionString The input option string.
+
+**/
+VOID
+UpdateSkipInfoForMenu (
+ IN UI_MENU_OPTION *MenuOption,
+ IN CHAR16 *OptionString
+ )
+{
+ UINTN Index;
+ UINT16 Width;
+ UINTN Row;
+ CHAR16 *OutputString;
+ UINT16 GlyphWidth;
+
+ Width = (UINT16) gOptionBlockWidth;
+ GlyphWidth = 1;
+ Row = 1;
+
+ for (Index = 0; GetLineByWidth (OptionString, Width, &GlyphWidth, &Index, &OutputString) != 0x0000;) {
+ if (StrLen (&OptionString[Index]) != 0) {
+ Row++;
+ }
+
+ FreePool (OutputString);
+ }
+
+ if ((Row > MenuOption->Skip) &&
+ (MenuOption->ThisTag->OpCode->OpCode != EFI_IFR_DATE_OP) &&
+ (MenuOption->ThisTag->OpCode->OpCode != EFI_IFR_TIME_OP)) {
+ MenuOption->Skip = Row;
+ }
+}
+
+/**
+ Update display lines for a Menu Option.
+
+ @param MenuOption The MenuOption to be checked.
+
+**/
+VOID
+UpdateOptionSkipLines (
+ IN UI_MENU_OPTION *MenuOption
+ )
+{
+ CHAR16 *OptionString;
+
+ OptionString = NULL;
+
+ ProcessOptions (MenuOption, FALSE, &OptionString, TRUE);
+ if (OptionString != NULL) {
+ UpdateSkipInfoForMenu (MenuOption, OptionString);
+
+ FreePool (OptionString);
+ }
+
+ if ((MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_TEXT_OP) && (((EFI_IFR_TEXT*)MenuOption->ThisTag->OpCode)->TextTwo != 0)) {
+ OptionString = GetToken (((EFI_IFR_TEXT*)MenuOption->ThisTag->OpCode)->TextTwo, gFormData->HiiHandle);
+
+ if (OptionString != NULL) {
+ UpdateSkipInfoForMenu (MenuOption, OptionString);
+
+ FreePool (OptionString);
+ }
+ }
+}
+
+/**
+ Check whether this Menu Option could be highlighted.
+
+ This is an internal function.
+
+ @param MenuOption The MenuOption to be checked.
+
+ @retval TRUE This Menu Option is selectable.
+ @retval FALSE This Menu Option could not be selected.
+
+**/
+BOOLEAN
+IsSelectable (
+ UI_MENU_OPTION *MenuOption
+ )
+{
+ if ((MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_SUBTITLE_OP) ||
+ MenuOption->GrayOut || MenuOption->ReadOnly) {
+ return FALSE;
+ } else {
+ return TRUE;
+ }
+}
+
+/**
+ Move to next selectable statement.
+
+ This is an internal function.
+
+ @param GoUp The navigation direction. TRUE: up, FALSE: down.
+ @param CurrentPosition Current position.
+ @param GapToTop Gap position to top or bottom.
+
+ @return The row distance from current MenuOption to next selectable MenuOption.
+
+ @retval -1 Reach the begin of the menu, still can't find the selectable menu.
+ @retval Value Find the selectable menu, maybe the truly selectable, maybe the l
+ last menu showing at current form.
+
+**/
+INTN
+MoveToNextStatement (
+ IN BOOLEAN GoUp,
+ IN OUT LIST_ENTRY **CurrentPosition,
+ IN UINTN GapToTop
+ )
+{
+ INTN Distance;
+ LIST_ENTRY *Pos;
+ UI_MENU_OPTION *NextMenuOption;
+ UI_MENU_OPTION *PreMenuOption;
+
+ Distance = 0;
+ Pos = *CurrentPosition;
+ PreMenuOption = MENU_OPTION_FROM_LINK (Pos);
+
+ while (TRUE) {
+ NextMenuOption = MENU_OPTION_FROM_LINK (Pos);
+ //
+ // NextMenuOption->Row == 0 means this menu has not calculate
+ // the NextMenuOption->Skip value yet, just calculate here.
+ //
+ if (NextMenuOption->Row == 0) {
+ UpdateOptionSkipLines (NextMenuOption);
+ }
+
+ if (GoUp && (PreMenuOption != NextMenuOption)) {
+ //
+ // In this case, still can't find the selectable menu,
+ // return the last one in the showing form.
+ //
+ if ((UINTN) Distance + NextMenuOption->Skip > GapToTop) {
+ NextMenuOption = PreMenuOption;
+ break;
+ }
+
+ //
+ // Current Position doesn't need to be caculated when go up.
+ // Caculate distanct at first when go up
+ //
+ Distance += NextMenuOption->Skip;
+ }
+
+ if (IsSelectable (NextMenuOption)) {
+ break;
+ }
+
+ //
+ // Arrive at begin of the menu list.
+ //
+ if ((GoUp ? Pos->BackLink : Pos->ForwardLink) == &gMenuOption) {
+ Distance = -1;
+ break;
+ }
+
+ if (!GoUp) {
+ //
+ // In this case, still can't find the selectable menu,
+ // return the last one in the showing form.
+ //
+ if ((UINTN) Distance + NextMenuOption->Skip > GapToTop) {
+ NextMenuOption = PreMenuOption;
+ break;
+ }
+
+ Distance += NextMenuOption->Skip;
+ }
+
+ PreMenuOption = NextMenuOption;
+ Pos = (GoUp ? Pos->BackLink : Pos->ForwardLink);
+ }
+
+ *CurrentPosition = &NextMenuOption->Link;
+ return Distance;
+}
+
+
+/**
+ Process option string for date/time opcode.
+
+ @param MenuOption Menu option point to date/time.
+ @param OptionString Option string input for process.
+ @param AddOptCol Whether need to update MenuOption->OptCol.
+
+**/
+VOID
+ProcessStringForDateTime (
+ UI_MENU_OPTION *MenuOption,
+ CHAR16 *OptionString,
+ BOOLEAN AddOptCol
+ )
+{
+ UINTN Index;
+ UINTN Count;
+ FORM_DISPLAY_ENGINE_STATEMENT *Statement;
+ EFI_IFR_DATE *Date;
+ EFI_IFR_TIME *Time;
+
+ ASSERT (MenuOption != NULL && OptionString != NULL);
+
+ Statement = MenuOption->ThisTag;
+ Date = NULL;
+ Time = NULL;
+ if (Statement->OpCode->OpCode == EFI_IFR_DATE_OP) {
+ Date = (EFI_IFR_DATE *) Statement->OpCode;
+ } else if (Statement->OpCode->OpCode == EFI_IFR_TIME_OP) {
+ Time = (EFI_IFR_TIME *) Statement->OpCode;
+ }
+
+ //
+ // If leading spaces on OptionString - remove the spaces
+ //
+ for (Index = 0; OptionString[Index] == L' '; Index++) {
+ //
+ // Base on the blockspace to get the option column info.
+ //
+ if (AddOptCol) {
+ MenuOption->OptCol++;
+ }
+ }
+
+ for (Count = 0; OptionString[Index] != CHAR_NULL; Index++) {
+ OptionString[Count] = OptionString[Index];
+ Count++;
+ }
+ OptionString[Count] = CHAR_NULL;
+
+ //
+ // Enable to suppress field in the opcode base on the flag.
+ //
+ if (Statement->OpCode->OpCode == EFI_IFR_DATE_OP) {
+ //
+ // OptionString format is: <**: **: ****>
+ // |month|day|year|
+ // 4 3 5
+ //
+ if ((Date->Flags & EFI_QF_DATE_MONTH_SUPPRESS) && (MenuOption->Sequence == 0)) {
+ //
+ // At this point, only "<**:" in the optionstring.
+ // Clean the day's ** field, after clean, the format is "< :"
+ //
+ SetUnicodeMem (&OptionString[1], 2, L' ');
+ } else if ((Date->Flags & EFI_QF_DATE_DAY_SUPPRESS) && (MenuOption->Sequence == 1)) {
+ //
+ // At this point, only "**:" in the optionstring.
+ // Clean the month's "**" field, after clean, the format is " :"
+ //
+ SetUnicodeMem (&OptionString[0], 2, L' ');
+ } else if ((Date->Flags & EFI_QF_DATE_YEAR_SUPPRESS) && (MenuOption->Sequence == 2)) {
+ //
+ // At this point, only "****>" in the optionstring.
+ // Clean the year's "****" field, after clean, the format is " >"
+ //
+ SetUnicodeMem (&OptionString[0], 4, L' ');
+ }
+ } else if (Statement->OpCode->OpCode == EFI_IFR_TIME_OP) {
+ //
+ // OptionString format is: <**: **: **>
+ // |hour|minute|second|
+ // 4 3 3
+ //
+ if ((Time->Flags & QF_TIME_HOUR_SUPPRESS) && (MenuOption->Sequence == 0)) {
+ //
+ // At this point, only "<**:" in the optionstring.
+ // Clean the hour's ** field, after clean, the format is "< :"
+ //
+ SetUnicodeMem (&OptionString[1], 2, L' ');
+ } else if ((Time->Flags & QF_TIME_MINUTE_SUPPRESS) && (MenuOption->Sequence == 1)) {
+ //
+ // At this point, only "**:" in the optionstring.
+ // Clean the minute's "**" field, after clean, the format is " :"
+ //
+ SetUnicodeMem (&OptionString[0], 2, L' ');
+ } else if ((Time->Flags & QF_TIME_SECOND_SUPPRESS) && (MenuOption->Sequence == 2)) {
+ //
+ // At this point, only "**>" in the optionstring.
+ // Clean the second's "**" field, after clean, the format is " >"
+ //
+ SetUnicodeMem (&OptionString[0], 2, L' ');
+ }
+ }
+}
+
+
+/**
+ Adjust Data and Time position accordingly.
+ Data format : [01/02/2004] [11:22:33]
+ Line number : 0 0 1 0 0 1
+
+ This is an internal function.
+
+ @param DirectionUp the up or down direction. False is down. True is
+ up.
+ @param CurrentPosition Current position. On return: Point to the last
+ Option (Year or Second) if up; Point to the first
+ Option (Month or Hour) if down.
+
+ @return Return line number to pad. It is possible that we stand on a zero-advance
+ @return data or time opcode, so pad one line when we judge if we are going to scroll outside.
+
+**/
+UINTN
+AdjustDateAndTimePosition (
+ IN BOOLEAN DirectionUp,
+ IN OUT LIST_ENTRY **CurrentPosition
+ )
+{
+ UINTN Count;
+ LIST_ENTRY *NewPosition;
+ UI_MENU_OPTION *MenuOption;
+ UINTN PadLineNumber;
+
+ PadLineNumber = 0;
+ NewPosition = *CurrentPosition;
+ MenuOption = MENU_OPTION_FROM_LINK (NewPosition);
+
+ if ((MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_DATE_OP) ||
+ (MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_TIME_OP)) {
+ //
+ // Calculate the distance from current position to the last Date/Time MenuOption
+ //
+ Count = 0;
+ while (MenuOption->Skip == 0) {
+ Count++;
+ NewPosition = NewPosition->ForwardLink;
+ MenuOption = MENU_OPTION_FROM_LINK (NewPosition);
+ PadLineNumber = 1;
+ }
+
+ NewPosition = *CurrentPosition;
+ if (DirectionUp) {
+ //
+ // Since the behavior of hitting the up arrow on a Date/Time MenuOption is intended
+ // to be one that back to the previous set of MenuOptions, we need to advance to the first
+ // Date/Time MenuOption and leave the remaining logic in CfUiUp intact so the appropriate
+ // checking can be done.
+ //
+ while (Count++ < 2) {
+ NewPosition = NewPosition->BackLink;
+ }
+ } else {
+ //
+ // Since the behavior of hitting the down arrow on a Date/Time MenuOption is intended
+ // to be one that progresses to the next set of MenuOptions, we need to advance to the last
+ // Date/Time MenuOption and leave the remaining logic in CfUiDown intact so the appropriate
+ // checking can be done.
+ //
+ while (Count-- > 0) {
+ NewPosition = NewPosition->ForwardLink;
+ }
+ }
+
+ *CurrentPosition = NewPosition;
+ }
+
+ return PadLineNumber;
+}
+
+/**
+ Get step info from numeric opcode.
+
+ @param[in] OpCode The input numeric op code.
+
+ @return step info for this opcode.
+**/
+UINT64
+GetFieldFromNum (
+ IN EFI_IFR_OP_HEADER *OpCode
+ )
+{
+ EFI_IFR_NUMERIC *NumericOp;
+ UINT64 Step;
+
+ NumericOp = (EFI_IFR_NUMERIC *) OpCode;
+
+ switch (NumericOp->Flags & EFI_IFR_NUMERIC_SIZE) {
+ case EFI_IFR_NUMERIC_SIZE_1:
+ Step = NumericOp->data.u8.Step;
+ break;
+
+ case EFI_IFR_NUMERIC_SIZE_2:
+ Step = NumericOp->data.u16.Step;
+ break;
+
+ case EFI_IFR_NUMERIC_SIZE_4:
+ Step = NumericOp->data.u32.Step;
+ break;
+
+ case EFI_IFR_NUMERIC_SIZE_8:
+ Step = NumericOp->data.u64.Step;
+ break;
+
+ default:
+ Step = 0;
+ break;
+ }
+
+ return Step;
+}
+
+/**
+ Find the registered HotKey based on KeyData.
+
+ @param[in] KeyData A pointer to a buffer that describes the keystroke
+ information for the hot key.
+
+ @return The registered HotKey context. If no found, NULL will return.
+**/
+BROWSER_HOT_KEY *
+GetHotKeyFromRegisterList (
+ IN EFI_INPUT_KEY *KeyData
+ )
+{
+ LIST_ENTRY *Link;
+ BROWSER_HOT_KEY *HotKey;
+
+ Link = GetFirstNode (&gFormData->HotKeyListHead);
+ while (!IsNull (&gFormData->HotKeyListHead, Link)) {
+ HotKey = BROWSER_HOT_KEY_FROM_LINK (Link);
+
+ if (HotKey->KeyData->ScanCode == KeyData->ScanCode) {
+ return HotKey;
+ }
+
+ Link = GetNextNode (&gFormData->HotKeyListHead, Link);
+ }
+
+ return NULL;
+}
+
+
+/**
+ Determine if the menu is the last menu that can be selected.
+
+ This is an internal function.
+
+ @param Direction The scroll direction. False is down. True is up.
+ @param CurrentPos The current focus.
+
+ @return FALSE -- the menu isn't the last menu that can be selected.
+ @return TRUE -- the menu is the last menu that can be selected.
+
+**/
+BOOLEAN
+ValueIsScroll (
+ IN BOOLEAN Direction,
+ IN LIST_ENTRY *CurrentPos
+ )
+{
+ LIST_ENTRY *Temp;
+
+ Temp = Direction ? CurrentPos->BackLink : CurrentPos->ForwardLink;
+
+ if (Temp == &gMenuOption) {
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/**
+ Wait for a given event to fire, or for an optional timeout to expire.
+
+ @param Event The event to wait for
+
+ @retval UI_EVENT_TYPE The type of the event which is trigged.
+
+**/
+UI_EVENT_TYPE
+UiWaitForEvent (
+ IN EFI_EVENT Event
+ )
+{
+ EFI_STATUS Status;
+ UINTN Index;
+ UINTN EventNum;
+ UINT64 Timeout;
+ EFI_EVENT TimerEvent;
+ EFI_EVENT WaitList[3];
+ UI_EVENT_TYPE EventType;
+
+ TimerEvent = NULL;
+ Timeout = FormExitTimeout(gFormData);
+
+ if (Timeout != 0) {
+ Status = gBS->CreateEvent (EVT_TIMER, 0, NULL, NULL, &TimerEvent);
+
+ //
+ // Set the timer event
+ //
+ gBS->SetTimer (
+ TimerEvent,
+ TimerRelative,
+ Timeout
+ );
+ }
+
+ WaitList[0] = Event;
+ EventNum = 1;
+ if (gFormData->FormRefreshEvent != NULL) {
+ WaitList[EventNum] = gFormData->FormRefreshEvent;
+ EventNum ++;
+ }
+
+ if (Timeout != 0) {
+ WaitList[EventNum] = TimerEvent;
+ EventNum ++;
+ }
+
+ Status = gBS->WaitForEvent (EventNum, WaitList, &Index);
+ ASSERT_EFI_ERROR (Status);
+
+ switch (Index) {
+ case 0:
+ EventType = UIEventKey;
+ break;
+
+ case 1:
+ if (gFormData->FormRefreshEvent != NULL) {
+ EventType = UIEventDriver;
+ } else {
+ ASSERT (Timeout != 0 && EventNum == 2);
+ EventType = UIEventTimeOut;
+ }
+ break;
+
+ default:
+ ASSERT (Index == 2 && EventNum == 3);
+ EventType = UIEventTimeOut;
+ break;
+ }
+
+ if (Timeout != 0) {
+ gBS->CloseEvent (TimerEvent);
+ }
+
+ return EventType;
+}
+
+/**
+ Get question id info from the input opcode header.
+
+ @param OpCode The input opcode header pointer.
+
+ @retval The question id for this opcode.
+
+**/
+EFI_QUESTION_ID
+GetQuestionIdInfo (
+ IN EFI_IFR_OP_HEADER *OpCode
+ )
+{
+ EFI_IFR_QUESTION_HEADER *QuestionHeader;
+
+ if (OpCode->Length < sizeof (EFI_IFR_OP_HEADER) + sizeof (EFI_IFR_QUESTION_HEADER)) {
+ return 0;
+ }
+
+ QuestionHeader = (EFI_IFR_QUESTION_HEADER *)((UINT8 *) OpCode + sizeof(EFI_IFR_OP_HEADER));
+
+ return QuestionHeader->QuestionId;
+}
+
+/**
+ Find the first menu which will be show at the top.
+
+ @param FormData The data info for this form.
+ @param TopOfScreen The link_entry pointer to top menu.
+ @param HighlightMenu The menu which will be highlight.
+ @param SkipValue The skip value for the top menu.
+
+**/
+VOID
+FindTopMenu (
+ IN FORM_DISPLAY_ENGINE_FORM *FormData,
+ OUT LIST_ENTRY **TopOfScreen,
+ OUT LIST_ENTRY **HighlightMenu,
+ OUT INTN *SkipValue
+ )
+{
+ LIST_ENTRY *Link;
+ LIST_ENTRY *NewPos;
+ UINTN TopRow;
+ UINTN BottomRow;
+ UINTN Index;
+ UI_MENU_OPTION *SavedMenuOption;
+ UINTN EndRow;
+
+ TopRow = gStatementDimensions.TopRow + SCROLL_ARROW_HEIGHT;
+ BottomRow = gStatementDimensions.BottomRow - SCROLL_ARROW_HEIGHT;
+
+ //
+ // If not has input highlight statement, just return the first one in this form.
+ //
+ if (FormData->HighLightedStatement == NULL) {
+ *TopOfScreen = gMenuOption.ForwardLink;
+ *HighlightMenu = gMenuOption.ForwardLink;
+ if (!IsListEmpty (&gMenuOption)) {
+ MoveToNextStatement (FALSE, HighlightMenu, BottomRow - TopRow);
+ }
+ *SkipValue = 0;
+ return;
+ }
+
+ //
+ // Now base on the input highlight menu to find the top menu in this page.
+ // Will base on the highlight menu show at the bottom to find the top menu.
+ //
+ NewPos = gMenuOption.ForwardLink;
+ SavedMenuOption = MENU_OPTION_FROM_LINK (NewPos);
+
+ while ((SavedMenuOption->ThisTag != FormData->HighLightedStatement) ||
+ (SavedMenuOption->Sequence != gSequence)) {
+ NewPos = NewPos->ForwardLink;
+ if (NewPos == &gMenuOption) {
+ //
+ // Not Found it, break
+ //
+ break;
+ }
+ SavedMenuOption = MENU_OPTION_FROM_LINK (NewPos);
+ }
+ ASSERT (SavedMenuOption->ThisTag == FormData->HighLightedStatement);
+
+ *HighlightMenu = NewPos;
+
+ AdjustDateAndTimePosition(FALSE, &NewPos);
+ SavedMenuOption = MENU_OPTION_FROM_LINK (NewPos);
+ UpdateOptionSkipLines (SavedMenuOption);
+
+ //
+ // If highlight opcode is date/time, keep the highlight row info not change.
+ //
+ if ((SavedMenuOption->ThisTag->OpCode->OpCode == EFI_IFR_DATE_OP || SavedMenuOption->ThisTag->OpCode->OpCode == EFI_IFR_TIME_OP) &&
+ (gHighligthMenuInfo.QuestionId != 0) &&
+ (gHighligthMenuInfo.QuestionId == GetQuestionIdInfo(SavedMenuOption->ThisTag->OpCode))) {
+ //
+ // Still show the highlight menu before exit from display engine.
+ //
+ EndRow = gHighligthMenuInfo.DisplayRow + SavedMenuOption->Skip;
+ } else {
+ EndRow = BottomRow;
+ }
+
+ //
+ // Base on the selected menu will show at the bottome of next page,
+ // select the menu show at the top of the next page.
+ //
+ Link = NewPos;
+ for (Index = TopRow + SavedMenuOption->Skip; Index <= EndRow; ) {
+ Link = Link->BackLink;
+ //
+ // Already find the first menu in this form, means highlight menu
+ // will show in first page of this form.
+ //
+ if (Link == &gMenuOption) {
+ *TopOfScreen = gMenuOption.ForwardLink;
+ *SkipValue = 0;
+ return;
+ }
+ SavedMenuOption = MENU_OPTION_FROM_LINK (Link);
+ UpdateOptionSkipLines (SavedMenuOption);
+ Index += SavedMenuOption->Skip;
+ }
+
+ //
+ // Found the menu which will show at the top of the page.
+ //
+ if (Link == NewPos) {
+ //
+ // The menu can show more than one pages, just show the menu at the top of the page.
+ //
+ *SkipValue = 0;
+ *TopOfScreen = Link;
+ } else {
+ //
+ // Check whether need to skip some line for menu shows at the top of the page.
+ //
+ *SkipValue = Index - EndRow;
+ if (*SkipValue > 0 && *SkipValue < (INTN) SavedMenuOption->Skip) {
+ *TopOfScreen = Link;
+ } else {
+ *SkipValue = 0;
+ *TopOfScreen = Link->ForwardLink;
+ }
+ }
+}
+
+/**
+ Display menu and wait for user to select one menu option, then return it.
+ If AutoBoot is enabled, then if user doesn't select any option,
+ after period of time, it will automatically return the first menu option.
+
+ @param FormData The current form data info.
+
+ @retval EFI_SUCESSS Process the user selection success.
+ @retval EFI_NOT_FOUND Process option string for orderedlist/Oneof fail.
+
+**/
+EFI_STATUS
+UiDisplayMenu (
+ IN FORM_DISPLAY_ENGINE_FORM *FormData
+ )
+{
+ INTN SkipValue;
+ INTN Difference;
+ UINTN DistanceValue;
+ UINTN Row;
+ UINTN Col;
+ UINTN TempRightCol;
+ UINTN Temp;
+ UINTN Temp2;
+ UINTN Temp3;
+ UINTN TopRow;
+ UINTN BottomRow;
+ UINTN OriginalRow;
+ UINTN Index;
+ UINT16 Width;
+ CHAR16 *StringPtr;
+ CHAR16 *OptionString;
+ CHAR16 *OutputString;
+ CHAR16 *HelpString;
+ CHAR16 *HelpHeaderString;
+ CHAR16 *HelpBottomString;
+ BOOLEAN NewLine;
+ BOOLEAN Repaint;
+ BOOLEAN UpArrow;
+ BOOLEAN DownArrow;
+ EFI_STATUS Status;
+ EFI_INPUT_KEY Key;
+ LIST_ENTRY *Link;
+ LIST_ENTRY *NewPos;
+ LIST_ENTRY *TopOfScreen;
+ LIST_ENTRY *SavedListEntry;
+ UI_MENU_OPTION *MenuOption;
+ UI_MENU_OPTION *NextMenuOption;
+ UI_MENU_OPTION *SavedMenuOption;
+ UI_MENU_OPTION *PreviousMenuOption;
+ UI_CONTROL_FLAG ControlFlag;
+ UI_SCREEN_OPERATION ScreenOperation;
+ UINT16 DefaultId;
+ FORM_DISPLAY_ENGINE_STATEMENT *Statement;
+ UINTN ModalSkipColumn;
+ BROWSER_HOT_KEY *HotKey;
+ UINTN HelpPageIndex;
+ UINTN HelpPageCount;
+ UINTN RowCount;
+ UINTN HelpLine;
+ UINTN HelpHeaderLine;
+ UINTN HelpBottomLine;
+ BOOLEAN MultiHelpPage;
+ UINT16 GlyphWidth;
+ UINT16 EachLineWidth;
+ UINT16 HeaderLineWidth;
+ UINT16 BottomLineWidth;
+ EFI_STRING_ID HelpInfo;
+ UI_EVENT_TYPE EventType;
+ FORM_DISPLAY_ENGINE_STATEMENT *InitialHighlight;
+
+ EventType = UIEventNone;
+ Status = EFI_SUCCESS;
+ HelpString = NULL;
+ HelpHeaderString = NULL;
+ HelpBottomString = NULL;
+ OptionString = NULL;
+ ScreenOperation = UiNoOperation;
+ NewLine = TRUE;
+ DefaultId = 0;
+ HelpPageCount = 0;
+ HelpLine = 0;
+ RowCount = 0;
+ HelpBottomLine = 0;
+ HelpHeaderLine = 0;
+ HelpPageIndex = 0;
+ MultiHelpPage = FALSE;
+ EachLineWidth = 0;
+ HeaderLineWidth = 0;
+ BottomLineWidth = 0;
+ OutputString = NULL;
+ UpArrow = FALSE;
+ DownArrow = FALSE;
+ SkipValue = 0;
+
+ NextMenuOption = NULL;
+ PreviousMenuOption = NULL;
+ SavedMenuOption = NULL;
+ HotKey = NULL;
+ Repaint = TRUE;
+ MenuOption = NULL;
+ ModalSkipColumn = (gStatementDimensions.RightColumn - gStatementDimensions.LeftColumn) / 6;
+ InitialHighlight = gFormData->HighLightedStatement;
+
+ ZeroMem (&Key, sizeof (EFI_INPUT_KEY));
+
+ gOptionBlockWidth = (CHAR16) ((gStatementDimensions.RightColumn - gStatementDimensions.LeftColumn) / 3);
+ gPromptBlockWidth = (CHAR16) (gOptionBlockWidth + LEFT_SKIPPED_COLUMNS);
+ gHelpBlockWidth = (CHAR16) (gOptionBlockWidth - LEFT_SKIPPED_COLUMNS);
+
+ TopRow = gStatementDimensions.TopRow + SCROLL_ARROW_HEIGHT;
+ BottomRow = gStatementDimensions.BottomRow - SCROLL_ARROW_HEIGHT - 1;
+
+ Row = TopRow;
+ if ((FormData->Attribute & HII_DISPLAY_MODAL) != 0) {
+ Col = gStatementDimensions.LeftColumn + LEFT_SKIPPED_COLUMNS + ModalSkipColumn;
+ } else {
+ Col = gStatementDimensions.LeftColumn + LEFT_SKIPPED_COLUMNS;
+ }
+
+ FindTopMenu(FormData, &TopOfScreen, &NewPos, &SkipValue);
+
+ gST->ConOut->EnableCursor (gST->ConOut, FALSE);
+
+ ControlFlag = CfInitialization;
+ while (TRUE) {
+ switch (ControlFlag) {
+ case CfInitialization:
+ if (IsListEmpty (&gMenuOption)) {
+
+ if ((FormData->Attribute & HII_DISPLAY_MODAL) == 0) {
+ //
+ // Clear Statement range.
+ //
+ ClearLines (
+ gStatementDimensions.LeftColumn,
+ gStatementDimensions.RightColumn,
+ TopRow - SCROLL_ARROW_HEIGHT,
+ BottomRow + SCROLL_ARROW_HEIGHT,
+ GetFieldTextColor ()
+ );
+
+ //
+ // Clear Key Range
+ //
+ RefreshKeyHelp (gFormData, NULL, FALSE);
+ }
+
+ ControlFlag = CfReadKey;
+ } else {
+ ControlFlag = CfRepaint;
+ }
+ break;
+
+ case CfRepaint:
+ ControlFlag = CfRefreshHighLight;
+
+ if (Repaint) {
+ //
+ // Display menu
+ //
+ DownArrow = FALSE;
+ UpArrow = FALSE;
+ Row = TopRow;
+
+ Temp = (UINTN) SkipValue;
+ Temp2 = (UINTN) SkipValue;
+ Temp3 = (UINTN) SkipValue;
+
+ //
+ // 1. Clear the screen.
+ //
+ if ((FormData->Attribute & HII_DISPLAY_MODAL) != 0) {
+ ClearLines (
+ gStatementDimensions.LeftColumn + ModalSkipColumn,
+ gStatementDimensions.LeftColumn + ModalSkipColumn + gPromptBlockWidth + gOptionBlockWidth,
+ TopRow - SCROLL_ARROW_HEIGHT,
+ BottomRow + SCROLL_ARROW_HEIGHT,
+ GetFieldTextColor ()
+ );
+ } else {
+ TempRightCol = gStatementDimensions.RightColumn;
+ if (!mStatementLayoutIsChanged) {
+ TempRightCol = gStatementDimensions.RightColumn - gHelpBlockWidth;
+ }
+ ClearLines (
+ gStatementDimensions.LeftColumn,
+ gStatementDimensions.RightColumn,
+ TopRow - SCROLL_ARROW_HEIGHT,
+ TopRow - 1,
+ GetFieldTextColor ()
+ );
+ ClearLines (
+ gStatementDimensions.LeftColumn,
+ TempRightCol,
+ TopRow,
+ BottomRow,
+ GetFieldTextColor ()
+ );
+ ClearLines (
+ gStatementDimensions.LeftColumn,
+ gStatementDimensions.RightColumn,
+ BottomRow + 1,
+ BottomRow + SCROLL_ARROW_HEIGHT,
+ GetFieldTextColor ()
+ );
+ }
+
+ //
+ // 2.Paint the menu.
+ //
+ for (Link = TopOfScreen; Link != &gMenuOption; Link = Link->ForwardLink) {
+ MenuOption = MENU_OPTION_FROM_LINK (Link);
+ MenuOption->Row = Row;
+ MenuOption->Col = Col;
+ if ((FormData->Attribute & HII_DISPLAY_MODAL) != 0) {
+ MenuOption->OptCol = gPromptBlockWidth + 1 + gStatementDimensions.LeftColumn + ModalSkipColumn;
+ } else {
+ MenuOption->OptCol = gPromptBlockWidth + 1 + gStatementDimensions.LeftColumn;
+ }
+
+ Statement = MenuOption->ThisTag;
+ if (MenuOption->NestInStatement) {
+ MenuOption->Col += SUBTITLE_INDENT;
+ }
+
+ if (MenuOption->GrayOut) {
+ gST->ConOut->SetAttribute (gST->ConOut, GetGrayedTextColor ());
+ } else {
+ if (Statement->OpCode->OpCode == EFI_IFR_SUBTITLE_OP) {
+ gST->ConOut->SetAttribute (gST->ConOut, GetSubTitleTextColor ());
+ }
+ }
+
+ Width = GetWidth (Statement);
+ OriginalRow = Row;
+ GlyphWidth = 1;
+
+ if (Statement->OpCode->OpCode == EFI_IFR_REF_OP && MenuOption->Col >= 2) {
+ //
+ // Print Arrow for Goto button.
+ //
+ PrintCharAt (
+ MenuOption->Col - 2,
+ Row,
+ GEOMETRICSHAPE_RIGHT_TRIANGLE
+ );
+ }
+
+ //
+ // 2.1. Paint the description.
+ //
+ for (Index = 0; GetLineByWidth (MenuOption->Description, Width, &GlyphWidth, &Index, &OutputString) != 0x0000;) {
+ //
+ // Temp means need to skip how many lines from the start.
+ //
+ if ((Temp == 0) && (Row <= BottomRow)) {
+ PrintStringAt (MenuOption->Col, Row, OutputString);
+ }
+ //
+ // If there is more string to process print on the next row and increment the Skip value
+ //
+ if (StrLen (&MenuOption->Description[Index]) != 0) {
+ if (Temp == 0) {
+ Row++;
+ }
+ }
+
+ FreePool (OutputString);
+ if (Temp != 0) {
+ Temp--;
+ }
+ }
+
+ Temp = 0;
+ Row = OriginalRow;
+
+ //
+ // 2.2. Paint the option string.
+ //
+ Status = ProcessOptions (MenuOption, FALSE, &OptionString, FALSE);
+ //
+ // If Error occur, question value update in ProcessOptions.
+ // Exit current FormDisplay with new question value.
+ //
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (OptionString != NULL) {
+ if (Statement->OpCode->OpCode == EFI_IFR_DATE_OP || Statement->OpCode->OpCode == EFI_IFR_TIME_OP) {
+ ProcessStringForDateTime(MenuOption, OptionString, TRUE);
+ }
+
+ Width = (UINT16) gOptionBlockWidth;
+ OriginalRow = Row;
+ GlyphWidth = 1;
+
+ for (Index = 0; GetLineByWidth (OptionString, Width, &GlyphWidth, &Index, &OutputString) != 0x0000;) {
+ if ((Temp2 == 0) && (Row <= BottomRow)) {
+ PrintStringAt (MenuOption->OptCol, Row, OutputString);
+ }
+ //
+ // If there is more string to process print on the next row and increment the Skip value
+ //
+ if (StrLen (&OptionString[Index]) != 0) {
+ if (Temp2 == 0) {
+ Row++;
+ //
+ // Since the Number of lines for this menu entry may or may not be reflected accurately
+ // since the prompt might be 1 lines and option might be many, and vice versa, we need to do
+ // some testing to ensure we are keeping this in-sync.
+ //
+ // If the difference in rows is greater than or equal to the skip value, increase the skip value
+ //
+ if ((Row - OriginalRow) >= MenuOption->Skip) {
+ MenuOption->Skip++;
+ }
+ }
+ }
+
+ FreePool (OutputString);
+ if (Temp2 != 0) {
+ Temp2--;
+ }
+ }
+
+ Row = OriginalRow;
+
+ FreePool (OptionString);
+ }
+ Temp2 = 0;
+
+ //
+ // If this is a text op with secondary text information
+ //
+ if ((Statement->OpCode->OpCode == EFI_IFR_TEXT_OP) && (((EFI_IFR_TEXT*)Statement->OpCode)->TextTwo != 0)) {
+ StringPtr = GetToken (((EFI_IFR_TEXT*)Statement->OpCode)->TextTwo, gFormData->HiiHandle);
+
+ Width = (UINT16) gOptionBlockWidth;
+ OriginalRow = Row;
+ GlyphWidth = 1;
+
+ for (Index = 0; GetLineByWidth (StringPtr, Width, &GlyphWidth, &Index, &OutputString) != 0x0000;) {
+ if ((Temp3 == 0) && (Row <= BottomRow)) {
+ PrintStringAt (MenuOption->OptCol, Row, OutputString);
+ }
+ //
+ // If there is more string to process print on the next row and increment the Skip value
+ //
+ if (StrLen (&StringPtr[Index]) != 0) {
+ if (Temp3 == 0) {
+ Row++;
+ //
+ // Since the Number of lines for this menu entry may or may not be reflected accurately
+ // since the prompt might be 1 lines and option might be many, and vice versa, we need to do
+ // some testing to ensure we are keeping this in-sync.
+ //
+ // If the difference in rows is greater than or equal to the skip value, increase the skip value
+ //
+ if ((Row - OriginalRow) >= MenuOption->Skip) {
+ MenuOption->Skip++;
+ }
+ }
+ }
+
+ FreePool (OutputString);
+ if (Temp3 != 0) {
+ Temp3--;
+ }
+ }
+
+ Row = OriginalRow;
+ FreePool (StringPtr);
+ }
+ Temp3 = 0;
+
+ gST->ConOut->SetAttribute (gST->ConOut, GetFieldTextColor ());
+
+ //
+ // 3. Update the row info which will be used by next menu.
+ //
+ if (Link == TopOfScreen) {
+ Row += MenuOption->Skip - SkipValue;
+ } else {
+ Row += MenuOption->Skip;
+ }
+
+ if (Row > BottomRow) {
+ if (!ValueIsScroll (FALSE, Link)) {
+ DownArrow = TRUE;
+ }
+
+ Row = BottomRow + 1;
+ break;
+ }
+ }
+
+ if (!ValueIsScroll (TRUE, TopOfScreen)) {
+ UpArrow = TRUE;
+ }
+
+ if (UpArrow) {
+ gST->ConOut->SetAttribute (gST->ConOut, GetArrowColor ());
+ PrintCharAt (
+ gStatementDimensions.LeftColumn + gPromptBlockWidth + gOptionBlockWidth + 1,
+ TopRow - SCROLL_ARROW_HEIGHT,
+ ARROW_UP
+ );
+ gST->ConOut->SetAttribute (gST->ConOut, GetFieldTextColor ());
+ }
+
+ if (DownArrow) {
+ gST->ConOut->SetAttribute (gST->ConOut, GetArrowColor ());
+ PrintCharAt (
+ gStatementDimensions.LeftColumn + gPromptBlockWidth + gOptionBlockWidth + 1,
+ BottomRow + SCROLL_ARROW_HEIGHT,
+ ARROW_DOWN
+ );
+ gST->ConOut->SetAttribute (gST->ConOut, GetFieldTextColor ());
+ }
+
+ MenuOption = NULL;
+ }
+ break;
+
+ case CfRefreshHighLight:
+
+ //
+ // MenuOption: Last menu option that need to remove hilight
+ // MenuOption is set to NULL in Repaint
+ // NewPos: Current menu option that need to hilight
+ //
+ ControlFlag = CfUpdateHelpString;
+
+ if (MenuOption != NULL && TopOfScreen == &MenuOption->Link) {
+ Temp = SkipValue;
+ } else {
+ Temp = 0;
+ }
+ if (NewPos == TopOfScreen) {
+ Temp2 = SkipValue;
+ } else {
+ Temp2 = 0;
+ }
+
+ if (NewPos != NULL && (MenuOption == NULL || NewPos != &MenuOption->Link)) {
+ if (MenuOption != NULL) {
+ //
+ // Remove highlight on last Menu Option
+ //
+ gST->ConOut->SetCursorPosition (gST->ConOut, MenuOption->Col, MenuOption->Row);
+ ProcessOptions (MenuOption, FALSE, &OptionString, TRUE);
+ gST->ConOut->SetAttribute (gST->ConOut, GetFieldTextColor ());
+ if (OptionString != NULL) {
+ if ((MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_DATE_OP) ||
+ (MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_TIME_OP)
+ ) {
+ ProcessStringForDateTime(MenuOption, OptionString, FALSE);
+ }
+
+ Width = (UINT16) gOptionBlockWidth;
+ OriginalRow = MenuOption->Row;
+ GlyphWidth = 1;
+
+ for (Index = 0; GetLineByWidth (OptionString, Width, &GlyphWidth, &Index, &OutputString) != 0x0000;) {
+ if ((Temp == 0) && (MenuOption->Row >= TopRow) && (MenuOption->Row <= BottomRow)) {
+ PrintStringAt (MenuOption->OptCol, MenuOption->Row, OutputString);
+ }
+ //
+ // If there is more string to process print on the next row and increment the Skip value
+ //
+ if (StrLen (&OptionString[Index]) != 0) {
+ if (Temp == 0) {
+ MenuOption->Row++;
+ }
+ }
+
+ FreePool (OutputString);
+ if (Temp != 0) {
+ Temp--;
+ }
+ }
+
+ MenuOption->Row = OriginalRow;
+
+ FreePool (OptionString);
+ } else {
+ if (NewLine) {
+ if (MenuOption->GrayOut) {
+ gST->ConOut->SetAttribute (gST->ConOut, GetGrayedTextColor ());
+ } else if (MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_SUBTITLE_OP) {
+ gST->ConOut->SetAttribute (gST->ConOut, GetSubTitleTextColor ());
+ }
+
+ OriginalRow = MenuOption->Row;
+ Width = GetWidth (MenuOption->ThisTag);
+ GlyphWidth = 1;
+
+ for (Index = 0; GetLineByWidth (MenuOption->Description, Width, &GlyphWidth, &Index, &OutputString) != 0x0000;) {
+ if ((Temp == 0) && (MenuOption->Row >= TopRow) && (MenuOption->Row <= BottomRow)) {
+ PrintStringAt (MenuOption->Col, MenuOption->Row, OutputString);
+ }
+ //
+ // If there is more string to process print on the next row and increment the Skip value
+ //
+ if (StrLen (&MenuOption->Description[Index]) != 0) {
+ if (Temp == 0) {
+ MenuOption->Row++;
+ }
+ }
+
+ FreePool (OutputString);
+ if (Temp != 0) {
+ Temp--;
+ }
+ }
+
+ MenuOption->Row = OriginalRow;
+ gST->ConOut->SetAttribute (gST->ConOut, GetFieldTextColor ());
+ }
+ }
+ }
+
+ //
+ // This is the current selected statement
+ //
+ MenuOption = MENU_OPTION_FROM_LINK (NewPos);
+ Statement = MenuOption->ThisTag;
+
+ //
+ // Get the highlight statement.
+ //
+ gUserInput->SelectedStatement = Statement;
+ gSequence = (UINT16) MenuOption->Sequence;
+
+ //
+ // Record highlight row info for date/time opcode.
+ //
+ if (Statement->OpCode->OpCode == EFI_IFR_DATE_OP || Statement->OpCode->OpCode == EFI_IFR_TIME_OP) {
+ gHighligthMenuInfo.QuestionId = GetQuestionIdInfo(Statement->OpCode);
+ gHighligthMenuInfo.DisplayRow = (UINT16) MenuOption->Row;
+ } else {
+ gHighligthMenuInfo.QuestionId = 0;
+ gHighligthMenuInfo.DisplayRow = 0;
+ }
+
+ if (!IsSelectable (MenuOption)) {
+ RefreshKeyHelp(gFormData, Statement, FALSE);
+ break;
+ }
+
+ //
+ // Set reverse attribute
+ //
+ gST->ConOut->SetAttribute (gST->ConOut, GetHighlightTextColor ());
+ gST->ConOut->SetCursorPosition (gST->ConOut, MenuOption->Col, MenuOption->Row);
+
+ ProcessOptions (MenuOption, FALSE, &OptionString, TRUE);
+ if (OptionString != NULL) {
+ if (Statement->OpCode->OpCode == EFI_IFR_DATE_OP || Statement->OpCode->OpCode == EFI_IFR_TIME_OP) {
+ ProcessStringForDateTime(MenuOption, OptionString, FALSE);
+ }
+ Width = (UINT16) gOptionBlockWidth;
+
+ OriginalRow = MenuOption->Row;
+ GlyphWidth = 1;
+
+ for (Index = 0; GetLineByWidth (OptionString, Width, &GlyphWidth, &Index, &OutputString) != 0x0000;) {
+ if ((Temp2 == 0) && (MenuOption->Row >= TopRow) && (MenuOption->Row <= BottomRow) ) {
+ PrintStringAt (MenuOption->OptCol, MenuOption->Row, OutputString);
+ }
+ //
+ // If there is more string to process print on the next row and increment the Skip value
+ //
+ if (StrLen (&OptionString[Index]) != 0) {
+ if (Temp2 == 0) {
+ MenuOption->Row++;
+ }
+ }
+
+ FreePool (OutputString);
+ if (Temp2 != 0) {
+ Temp2--;
+ }
+ }
+
+ MenuOption->Row = OriginalRow;
+
+ FreePool (OptionString);
+ } else {
+ if (NewLine) {
+ OriginalRow = MenuOption->Row;
+
+ Width = GetWidth (Statement);
+ GlyphWidth = 1;
+
+ for (Index = 0; GetLineByWidth (MenuOption->Description, Width, &GlyphWidth, &Index, &OutputString) != 0x0000;) {
+ if ((Temp2 == 0) && (MenuOption->Row >= TopRow) && (MenuOption->Row <= BottomRow) ) {
+ PrintStringAt (MenuOption->Col, MenuOption->Row, OutputString);
+ }
+ //
+ // If there is more string to process print on the next row and increment the Skip value
+ //
+ if (StrLen (&MenuOption->Description[Index]) != 0) {
+ if (Temp2 == 0) {
+ MenuOption->Row++;
+ }
+ }
+
+ FreePool (OutputString);
+ if (Temp2 != 0) {
+ Temp2--;
+ }
+ }
+
+ MenuOption->Row = OriginalRow;
+
+ }
+ }
+
+ RefreshKeyHelp(gFormData, MenuOption->ThisTag, FALSE);
+
+ //
+ // Clear reverse attribute
+ //
+ gST->ConOut->SetAttribute (gST->ConOut, GetFieldTextColor ());
+ }
+ break;
+
+ case CfUpdateHelpString:
+ ControlFlag = CfPrepareToReadKey;
+ if ((FormData->Attribute & HII_DISPLAY_MODAL) != 0) {
+ break;
+ }
+
+ if (Repaint || NewLine) {
+ //
+ // Don't print anything if it is a NULL help token
+ //
+ ASSERT(MenuOption != NULL);
+ HelpInfo = ((EFI_IFR_STATEMENT_HEADER *) ((CHAR8 *)MenuOption->ThisTag->OpCode + sizeof (EFI_IFR_OP_HEADER)))->Help;
+ if (HelpInfo == 0 || !IsSelectable (MenuOption)) {
+ StringPtr = GetToken (STRING_TOKEN (EMPTY_STRING), gHiiHandle);
+ } else {
+ StringPtr = GetToken (HelpInfo, gFormData->HiiHandle);
+ }
+
+ RowCount = BottomRow - TopRow + 1;
+ HelpPageIndex = 0;
+ //
+ // 1.Calculate how many line the help string need to print.
+ //
+ if (HelpString != NULL) {
+ FreePool (HelpString);
+ HelpString = NULL;
+ }
+ HelpLine = ProcessHelpString (StringPtr, &HelpString, &EachLineWidth, RowCount);
+ FreePool (StringPtr);
+
+ if (HelpLine > RowCount) {
+ MultiHelpPage = TRUE;
+ StringPtr = GetToken (STRING_TOKEN(ADJUST_HELP_PAGE_UP), gHiiHandle);
+ if (HelpHeaderString != NULL) {
+ FreePool (HelpHeaderString);
+ HelpHeaderString = NULL;
+ }
+ HelpHeaderLine = ProcessHelpString (StringPtr, &HelpHeaderString, &HeaderLineWidth, 0);
+ FreePool (StringPtr);
+ StringPtr = GetToken (STRING_TOKEN(ADJUST_HELP_PAGE_DOWN), gHiiHandle);
+ if (HelpBottomString != NULL) {
+ FreePool (HelpBottomString);
+ HelpBottomString = NULL;
+ }
+ HelpBottomLine = ProcessHelpString (StringPtr, &HelpBottomString, &BottomLineWidth, 0);
+ FreePool (StringPtr);
+ //
+ // Calculate the help page count.
+ //
+ if (HelpLine > 2 * RowCount - 2) {
+ HelpPageCount = (HelpLine - RowCount + 1) / (RowCount - 2) + 1;
+ if ((HelpLine - RowCount + 1) % (RowCount - 2) > 1) {
+ HelpPageCount += 1;
+ }
+ } else {
+ HelpPageCount = 2;
+ }
+ } else {
+ MultiHelpPage = FALSE;
+ }
+ }
+
+ //
+ // Check whether need to show the 'More(U/u)' at the begin.
+ // Base on current direct info, here shows aligned to the right side of the column.
+ // If the direction is multi line and aligned to right side may have problem, so
+ // add ASSERT code here.
+ //
+ if (HelpPageIndex > 0) {
+ gST->ConOut->SetAttribute (gST->ConOut, GetInfoTextColor ());
+ for (Index = 0; Index < HelpHeaderLine; Index++) {
+ ASSERT (HelpHeaderLine == 1);
+ ASSERT (GetStringWidth (HelpHeaderString) / 2 < (UINTN) (gHelpBlockWidth - 1));
+ PrintStringAtWithWidth (
+ gStatementDimensions.RightColumn - gHelpBlockWidth,
+ Index + TopRow,
+ gEmptyString,
+ gHelpBlockWidth
+ );
+ PrintStringAt (
+ gStatementDimensions.RightColumn - GetStringWidth (HelpHeaderString) / 2 - 1,
+ Index + TopRow,
+ &HelpHeaderString[Index * HeaderLineWidth]
+ );
+ }
+ }
+
+ gST->ConOut->SetAttribute (gST->ConOut, GetHelpTextColor ());
+ //
+ // Print the help string info.
+ //
+ if (!MultiHelpPage) {
+ for (Index = 0; Index < HelpLine; Index++) {
+ PrintStringAtWithWidth (
+ gStatementDimensions.RightColumn - gHelpBlockWidth,
+ Index + TopRow,
+ &HelpString[Index * EachLineWidth],
+ gHelpBlockWidth
+ );
+ }
+ for (; Index < RowCount; Index ++) {
+ PrintStringAtWithWidth (
+ gStatementDimensions.RightColumn - gHelpBlockWidth,
+ Index + TopRow,
+ gEmptyString,
+ gHelpBlockWidth
+ );
+ }
+ gST->ConOut->SetCursorPosition(gST->ConOut, gStatementDimensions.RightColumn-1, BottomRow);
+ } else {
+ if (HelpPageIndex == 0) {
+ for (Index = 0; Index < RowCount - HelpBottomLine; Index++) {
+ PrintStringAtWithWidth (
+ gStatementDimensions.RightColumn - gHelpBlockWidth,
+ Index + TopRow,
+ &HelpString[Index * EachLineWidth],
+ gHelpBlockWidth
+ );
+ }
+ } else {
+ for (Index = 0; (Index < RowCount - HelpBottomLine - HelpHeaderLine) &&
+ (Index + HelpPageIndex * (RowCount - 2) + 1 < HelpLine); Index++) {
+ PrintStringAtWithWidth (
+ gStatementDimensions.RightColumn - gHelpBlockWidth,
+ Index + TopRow + HelpHeaderLine,
+ &HelpString[(Index + HelpPageIndex * (RowCount - 2) + 1)* EachLineWidth],
+ gHelpBlockWidth
+ );
+ }
+ if (HelpPageIndex == HelpPageCount - 1) {
+ for (; Index < RowCount - HelpHeaderLine; Index ++) {
+ PrintStringAtWithWidth (
+ gStatementDimensions.RightColumn - gHelpBlockWidth,
+ Index + TopRow + HelpHeaderLine,
+ gEmptyString,
+ gHelpBlockWidth
+ );
+ }
+ gST->ConOut->SetCursorPosition(gST->ConOut, gStatementDimensions.RightColumn-1, BottomRow);
+ }
+ }
+ }
+
+ //
+ // Check whether need to print the 'More(D/d)' at the bottom.
+ // Base on current direct info, here shows aligned to the right side of the column.
+ // If the direction is multi line and aligned to right side may have problem, so
+ // add ASSERT code here.
+ //
+ if (HelpPageIndex < HelpPageCount - 1 && MultiHelpPage) {
+ gST->ConOut->SetAttribute (gST->ConOut, GetInfoTextColor ());
+ for (Index = 0; Index < HelpBottomLine; Index++) {
+ ASSERT (HelpBottomLine == 1);
+ ASSERT (GetStringWidth (HelpBottomString) / 2 < (UINTN) (gHelpBlockWidth - 1));
+ PrintStringAtWithWidth (
+ gStatementDimensions.RightColumn - gHelpBlockWidth,
+ BottomRow + Index - HelpBottomLine + 1,
+ gEmptyString,
+ gHelpBlockWidth
+ );
+ PrintStringAt (
+ gStatementDimensions.RightColumn - GetStringWidth (HelpBottomString) / 2 - 1,
+ BottomRow + Index - HelpBottomLine + 1,
+ &HelpBottomString[Index * BottomLineWidth]
+ );
+ }
+ }
+ //
+ // Reset this flag every time we finish using it.
+ //
+ Repaint = FALSE;
+ NewLine = FALSE;
+ break;
+
+ case CfPrepareToReadKey:
+ ControlFlag = CfReadKey;
+ ScreenOperation = UiNoOperation;
+ break;
+
+ case CfReadKey:
+ ControlFlag = CfScreenOperation;
+
+ //
+ // Wait for user's selection
+ //
+ while (TRUE) {
+ Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
+ if (!EFI_ERROR (Status)) {
+ EventType = UIEventKey;
+ break;
+ }
+
+ //
+ // If we encounter error, continue to read another key in.
+ //
+ if (Status != EFI_NOT_READY) {
+ continue;
+ }
+
+ EventType = UiWaitForEvent(gST->ConIn->WaitForKey);
+ if (EventType == UIEventKey) {
+ gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
+ }
+ break;
+ }
+
+ if (EventType == UIEventDriver) {
+ gUserInput->Action = BROWSER_ACTION_NONE;
+ ControlFlag = CfExit;
+ break;
+ }
+
+ if (EventType == UIEventTimeOut) {
+ gUserInput->Action = BROWSER_ACTION_FORM_EXIT;
+ ControlFlag = CfExit;
+ break;
+ }
+
+ switch (Key.UnicodeChar) {
+ case CHAR_CARRIAGE_RETURN:
+ if(MenuOption == NULL || MenuOption->GrayOut || MenuOption->ReadOnly) {
+ ControlFlag = CfReadKey;
+ break;
+ }
+
+ ScreenOperation = UiSelect;
+ gDirection = 0;
+ break;
+
+ //
+ // We will push the adjustment of these numeric values directly to the input handler
+ // NOTE: we won't handle manual input numeric
+ //
+ case '+':
+ case '-':
+ //
+ // If the screen has no menu items, and the user didn't select UiReset
+ // ignore the selection and go back to reading keys.
+ //
+ if(IsListEmpty (&gMenuOption) || MenuOption->GrayOut || MenuOption->ReadOnly) {
+ ControlFlag = CfReadKey;
+ break;
+ }
+
+ ASSERT(MenuOption != NULL);
+ Statement = MenuOption->ThisTag;
+ if ((Statement->OpCode->OpCode == EFI_IFR_DATE_OP)
+ || (Statement->OpCode->OpCode == EFI_IFR_TIME_OP)
+ || ((Statement->OpCode->OpCode == EFI_IFR_NUMERIC_OP) && (GetFieldFromNum(Statement->OpCode) != 0))
+ ){
+ if (Key.UnicodeChar == '+') {
+ gDirection = SCAN_RIGHT;
+ } else {
+ gDirection = SCAN_LEFT;
+ }
+
+ Status = ProcessOptions (MenuOption, TRUE, &OptionString, TRUE);
+ if (OptionString != NULL) {
+ FreePool (OptionString);
+ }
+ if (EFI_ERROR (Status)) {
+ //
+ // Repaint to clear possible error prompt pop-up
+ //
+ Repaint = TRUE;
+ NewLine = TRUE;
+ } else {
+ ControlFlag = CfExit;
+ }
+ }
+ break;
+
+ case '^':
+ ScreenOperation = UiUp;
+ break;
+
+ case 'V':
+ case 'v':
+ ScreenOperation = UiDown;
+ break;
+
+ case ' ':
+ if(IsListEmpty (&gMenuOption)) {
+ ControlFlag = CfReadKey;
+ break;
+ }
+
+ ASSERT(MenuOption != NULL);
+ if (MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_CHECKBOX_OP && !MenuOption->GrayOut && !MenuOption->ReadOnly) {
+ ScreenOperation = UiSelect;
+ }
+ break;
+
+ case 'D':
+ case 'd':
+ if (!MultiHelpPage) {
+ ControlFlag = CfReadKey;
+ break;
+ }
+ ControlFlag = CfUpdateHelpString;
+ HelpPageIndex = HelpPageIndex < HelpPageCount - 1 ? HelpPageIndex + 1 : HelpPageCount - 1;
+ break;
+
+ case 'U':
+ case 'u':
+ if (!MultiHelpPage) {
+ ControlFlag = CfReadKey;
+ break;
+ }
+ ControlFlag = CfUpdateHelpString;
+ HelpPageIndex = HelpPageIndex > 0 ? HelpPageIndex - 1 : 0;
+ break;
+
+ case CHAR_NULL:
+ for (Index = 0; Index < mScanCodeNumber; Index++) {
+ if (Key.ScanCode == gScanCodeToOperation[Index].ScanCode) {
+ ScreenOperation = gScanCodeToOperation[Index].ScreenOperation;
+ break;
+ }
+ }
+
+ if (((FormData->Attribute & HII_DISPLAY_MODAL) != 0) && (Key.ScanCode == SCAN_ESC || Index == mScanCodeNumber)) {
+ //
+ // ModalForm has no ESC key and Hot Key.
+ //
+ ControlFlag = CfReadKey;
+ } else if (Index == mScanCodeNumber) {
+ //
+ // Check whether Key matches the registered hot key.
+ //
+ HotKey = NULL;
+ HotKey = GetHotKeyFromRegisterList (&Key);
+ if (HotKey != NULL) {
+ ScreenOperation = UiHotKey;
+ }
+ }
+ break;
+ }
+ break;
+
+ case CfScreenOperation:
+ if (ScreenOperation != UiReset) {
+ //
+ // If the screen has no menu items, and the user didn't select UiReset
+ // ignore the selection and go back to reading keys.
+ //
+ if (IsListEmpty (&gMenuOption)) {
+ ControlFlag = CfReadKey;
+ break;
+ }
+ }
+
+ for (Index = 0;
+ Index < sizeof (gScreenOperationToControlFlag) / sizeof (gScreenOperationToControlFlag[0]);
+ Index++
+ ) {
+ if (ScreenOperation == gScreenOperationToControlFlag[Index].ScreenOperation) {
+ ControlFlag = gScreenOperationToControlFlag[Index].ControlFlag;
+ break;
+ }
+ }
+ break;
+
+ case CfUiSelect:
+ ControlFlag = CfRepaint;
+
+ ASSERT(MenuOption != NULL);
+ Statement = MenuOption->ThisTag;
+ if (Statement->OpCode->OpCode == EFI_IFR_TEXT_OP) {
+ break;
+ }
+
+ switch (Statement->OpCode->OpCode) {
+ case EFI_IFR_REF_OP:
+ case EFI_IFR_ACTION_OP:
+ case EFI_IFR_RESET_BUTTON_OP:
+ ControlFlag = CfExit;
+ break;
+
+ default:
+ //
+ // Editable Questions: oneof, ordered list, checkbox, numeric, string, password
+ //
+ RefreshKeyHelp (gFormData, Statement, TRUE);
+ Status = ProcessOptions (MenuOption, TRUE, &OptionString, TRUE);
+
+ if (OptionString != NULL) {
+ FreePool (OptionString);
+ }
+
+ if (EFI_ERROR (Status)) {
+ Repaint = TRUE;
+ NewLine = TRUE;
+ RefreshKeyHelp (gFormData, Statement, FALSE);
+ break;
+ } else {
+ ControlFlag = CfExit;
+ break;
+ }
+ }
+ break;
+
+ case CfUiReset:
+ //
+ // We come here when someone press ESC
+ // If the policy is not exit front page when user press ESC, process here.
+ //
+ if (!FormExitPolicy()) {
+ Repaint = TRUE;
+ NewLine = TRUE;
+ ControlFlag = CfRepaint;
+ break;
+ }
+
+ //
+ // When user press ESC, it will try to show another menu, should clean the gSequence info.
+ //
+ if (gSequence != 0) {
+ gSequence = 0;
+ }
+
+ gUserInput->Action = BROWSER_ACTION_FORM_EXIT;
+ ControlFlag = CfExit;
+ break;
+
+ case CfUiHotKey:
+ ControlFlag = CfRepaint;
+
+ gUserInput->Action = HotKey->Action;
+ ControlFlag = CfExit;
+ break;
+
+ case CfUiLeft:
+ ControlFlag = CfRepaint;
+ ASSERT(MenuOption != NULL);
+ if ((MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_DATE_OP) || (MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_TIME_OP)) {
+ if (MenuOption->Sequence != 0) {
+ //
+ // In the middle or tail of the Date/Time op-code set, go left.
+ //
+ ASSERT(NewPos != NULL);
+ NewPos = NewPos->BackLink;
+ }
+ }
+ break;
+
+ case CfUiRight:
+ ControlFlag = CfRepaint;
+ ASSERT(MenuOption != NULL);
+ if ((MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_DATE_OP) || (MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_TIME_OP)) {
+ if (MenuOption->Sequence != 2) {
+ //
+ // In the middle or tail of the Date/Time op-code set, go left.
+ //
+ ASSERT(NewPos != NULL);
+ NewPos = NewPos->ForwardLink;
+ }
+ }
+ break;
+
+ case CfUiUp:
+ ControlFlag = CfRepaint;
+
+ SavedListEntry = NewPos;
+
+ ASSERT(NewPos != NULL);
+ //
+ // Adjust Date/Time position before we advance forward.
+ //
+ AdjustDateAndTimePosition (TRUE, &NewPos);
+ if (NewPos->BackLink != &gMenuOption) {
+ MenuOption = MENU_OPTION_FROM_LINK (NewPos);
+ ASSERT (MenuOption != NULL);
+ NewLine = TRUE;
+ NewPos = NewPos->BackLink;
+
+ PreviousMenuOption = MENU_OPTION_FROM_LINK (NewPos);
+ if (PreviousMenuOption->Row == 0) {
+ UpdateOptionSkipLines (PreviousMenuOption);
+ }
+ DistanceValue = PreviousMenuOption->Skip;
+ Difference = 0;
+ if (MenuOption->Row >= DistanceValue + TopRow) {
+ Difference = MoveToNextStatement (TRUE, &NewPos, MenuOption->Row - TopRow - DistanceValue);
+ }
+ NextMenuOption = MENU_OPTION_FROM_LINK (NewPos);
+
+ if (Difference < 0) {
+ //
+ // We hit the begining MenuOption that can be focused
+ // so we simply scroll to the top.
+ //
+ if (TopOfScreen != gMenuOption.ForwardLink) {
+ TopOfScreen = gMenuOption.ForwardLink;
+ Repaint = TRUE;
+ } else {
+ //
+ // Scroll up to the last page when we have arrived at top page.
+ //
+ NewPos = &gMenuOption;
+ TopOfScreen = &gMenuOption;
+ MenuOption = MENU_OPTION_FROM_LINK (SavedListEntry);
+ ScreenOperation = UiPageUp;
+ ControlFlag = CfScreenOperation;
+ break;
+ }
+ } else if (MenuOption->Row < TopRow + DistanceValue + Difference) {
+ //
+ // Previous focus MenuOption is above the TopOfScreen, so we need to scroll
+ //
+ TopOfScreen = NewPos;
+ Repaint = TRUE;
+ SkipValue = 0;
+ } else if (!IsSelectable (NextMenuOption)) {
+ //
+ // Continue to go up until scroll to next page or the selectable option is found.
+ //
+ ScreenOperation = UiUp;
+ ControlFlag = CfScreenOperation;
+ }
+
+ //
+ // If we encounter a Date/Time op-code set, rewind to the first op-code of the set.
+ //
+ AdjustDateAndTimePosition (TRUE, &TopOfScreen);
+ AdjustDateAndTimePosition (TRUE, &NewPos);
+ MenuOption = MENU_OPTION_FROM_LINK (SavedListEntry);
+ UpdateStatusBar (INPUT_ERROR, FALSE);
+ } else {
+ //
+ // Scroll up to the last page.
+ //
+ NewPos = &gMenuOption;
+ TopOfScreen = &gMenuOption;
+ MenuOption = MENU_OPTION_FROM_LINK (SavedListEntry);
+ ScreenOperation = UiPageUp;
+ ControlFlag = CfScreenOperation;
+ }
+ break;
+
+ case CfUiPageUp:
+ //
+ // SkipValue means lines is skipped when show the top menu option.
+ //
+ ControlFlag = CfRepaint;
+
+ ASSERT(NewPos != NULL);
+ //
+ // Already at the first menu option, Check the skip value.
+ //
+ if (NewPos->BackLink == &gMenuOption) {
+ if (SkipValue == 0) {
+ NewLine = FALSE;
+ Repaint = FALSE;
+ } else {
+ NewLine = TRUE;
+ Repaint = TRUE;
+ SkipValue = 0;
+ }
+ break;
+ }
+
+ NewLine = TRUE;
+ Repaint = TRUE;
+
+ //
+ // SkipValue > (BottomRow - TopRow + 1) means current menu has more than one
+ // form of options to be show, so just update the SkipValue to show the next
+ // parts of options.
+ //
+ if (SkipValue > (INTN) (BottomRow - TopRow + 1)) {
+ SkipValue -= BottomRow - TopRow + 1;
+ break;
+ }
+
+ Link = TopOfScreen;
+ //
+ // First minus the menu of the top screen, it's value is SkipValue.
+ //
+ Index = (BottomRow + 1) - SkipValue;
+ while ((Index > TopRow) && (Link->BackLink != &gMenuOption)) {
+ Link = Link->BackLink;
+ PreviousMenuOption = MENU_OPTION_FROM_LINK (Link);
+ if (PreviousMenuOption->Row == 0) {
+ UpdateOptionSkipLines (PreviousMenuOption);
+ }
+ if (Index < PreviousMenuOption->Skip) {
+ break;
+ }
+ Index = Index - PreviousMenuOption->Skip;
+ }
+
+ if ((Link->BackLink == &gMenuOption) && (Index >= TopRow)) {
+ SkipValue = 0;
+ if (TopOfScreen == &gMenuOption) {
+ TopOfScreen = gMenuOption.ForwardLink;
+ NewPos = gMenuOption.BackLink;
+ MoveToNextStatement (TRUE, &NewPos, BottomRow - TopRow);
+ Repaint = FALSE;
+ } else if (TopOfScreen != Link) {
+ TopOfScreen = Link;
+ NewPos = Link;
+ MoveToNextStatement (FALSE, &NewPos, BottomRow - TopRow);
+ } else {
+ //
+ // Finally we know that NewPos is the last MenuOption can be focused.
+ //
+ Repaint = FALSE;
+ NewPos = Link;
+ MoveToNextStatement (FALSE, &NewPos, BottomRow - TopRow);
+ }
+ } else {
+ if (Index > TopRow) {
+ //
+ // At here, only case "Index < PreviousMenuOption->Skip" can reach here.
+ //
+ SkipValue = PreviousMenuOption->Skip - (Index - TopRow);
+ } else if (Index == TopRow) {
+ SkipValue = 0;
+ } else {
+ SkipValue = TopRow - Index;
+ }
+
+ //
+ // Move to the option in Next page.
+ //
+ if (TopOfScreen == &gMenuOption) {
+ NewPos = gMenuOption.BackLink;
+ MoveToNextStatement (TRUE, &NewPos, BottomRow - TopRow);
+ } else {
+ NewPos = Link;
+ MoveToNextStatement (FALSE, &NewPos, BottomRow - TopRow);
+ }
+
+ //
+ // There are more MenuOption needing scrolling up.
+ //
+ TopOfScreen = Link;
+ MenuOption = NULL;
+ }
+
+ //
+ // If we encounter a Date/Time op-code set, rewind to the first op-code of the set.
+ // Don't do this when we are already in the first page.
+ //
+ AdjustDateAndTimePosition (TRUE, &TopOfScreen);
+ AdjustDateAndTimePosition (TRUE, &NewPos);
+ break;
+
+ case CfUiPageDown:
+ //
+ // SkipValue means lines is skipped when show the top menu option.
+ //
+ ControlFlag = CfRepaint;
+
+ ASSERT (NewPos != NULL);
+ if (NewPos->ForwardLink == &gMenuOption) {
+ NewLine = FALSE;
+ Repaint = FALSE;
+ break;
+ }
+
+ NewLine = TRUE;
+ Repaint = TRUE;
+ Link = TopOfScreen;
+ NextMenuOption = MENU_OPTION_FROM_LINK (Link);
+ Index = TopRow + NextMenuOption->Skip - SkipValue;
+ //
+ // Count to the menu option which will show at the top of the next form.
+ //
+ while ((Index <= BottomRow + 1) && (Link->ForwardLink != &gMenuOption)) {
+ Link = Link->ForwardLink;
+ NextMenuOption = MENU_OPTION_FROM_LINK (Link);
+ Index = Index + NextMenuOption->Skip;
+ }
+
+ if ((Link->ForwardLink == &gMenuOption) && (Index <= BottomRow + 1)) {
+ //
+ // Finally we know that NewPos is the last MenuOption can be focused.
+ //
+ Repaint = FALSE;
+ MoveToNextStatement (TRUE, &Link, Index - TopRow);
+ } else {
+ //
+ // Calculate the skip line for top of screen menu.
+ //
+ if (Link == TopOfScreen) {
+ //
+ // The top of screen menu option occupies the entire form.
+ //
+ SkipValue += BottomRow - TopRow + 1;
+ } else {
+ SkipValue = NextMenuOption->Skip - (Index - (BottomRow + 1));
+ }
+
+ TopOfScreen = Link;
+ MenuOption = NULL;
+ //
+ // Move to the Next selectable menu.
+ //
+ MoveToNextStatement (FALSE, &Link, BottomRow - TopRow);
+ }
+
+ //
+ // Save the menu as the next highlight menu.
+ //
+ NewPos = Link;
+
+ //
+ // If we encounter a Date/Time op-code set, rewind to the first op-code of the set.
+ // Don't do this when we are already in the last page.
+ //
+ AdjustDateAndTimePosition (TRUE, &TopOfScreen);
+ AdjustDateAndTimePosition (TRUE, &NewPos);
+ break;
+
+ case CfUiDown:
+ //
+ // SkipValue means lines is skipped when show the top menu option.
+ // NewPos points to the menu which is highlighted now.
+ //
+ ControlFlag = CfRepaint;
+
+ //
+ // Since the behavior of hitting the down arrow on a Date/Time op-code is intended
+ // to be one that progresses to the next set of op-codes, we need to advance to the last
+ // Date/Time op-code and leave the remaining logic in UiDown intact so the appropriate
+ // checking can be done. The only other logic we need to introduce is that if a Date/Time
+ // op-code is the last entry in the menu, we need to rewind back to the first op-code of
+ // the Date/Time op-code.
+ //
+ SavedListEntry = NewPos;
+ AdjustDateAndTimePosition (FALSE, &NewPos);
+
+ if (NewPos->ForwardLink != &gMenuOption) {
+ MenuOption = MENU_OPTION_FROM_LINK (NewPos);
+ NewLine = TRUE;
+ NewPos = NewPos->ForwardLink;
+
+ Difference = 0;
+ //
+ // Current menu not at the bottom of the form.
+ //
+ if (BottomRow >= MenuOption->Row + MenuOption->Skip) {
+ //
+ // Find the next selectable menu.
+ //
+ Difference = MoveToNextStatement (FALSE, &NewPos, BottomRow - MenuOption->Row - MenuOption->Skip);
+ //
+ // We hit the end of MenuOption that can be focused
+ // so we simply scroll to the first page.
+ //
+ if (Difference < 0) {
+ //
+ // Scroll to the first page.
+ //
+ if (TopOfScreen != gMenuOption.ForwardLink) {
+ TopOfScreen = gMenuOption.ForwardLink;
+ Repaint = TRUE;
+ MenuOption = NULL;
+ } else {
+ MenuOption = MENU_OPTION_FROM_LINK (SavedListEntry);
+ }
+ NewPos = gMenuOption.ForwardLink;
+ MoveToNextStatement (FALSE, &NewPos, BottomRow - TopRow);
+
+ SkipValue = 0;
+ //
+ // If we are at the end of the list and sitting on a Date/Time op, rewind to the head.
+ //
+ AdjustDateAndTimePosition (TRUE, &TopOfScreen);
+ AdjustDateAndTimePosition (TRUE, &NewPos);
+ break;
+ }
+ }
+ NextMenuOption = MENU_OPTION_FROM_LINK (NewPos);
+ if (NextMenuOption->Row == 0) {
+ UpdateOptionSkipLines (NextMenuOption);
+ }
+ DistanceValue = Difference + NextMenuOption->Skip;
+
+ Temp = MenuOption->Row + MenuOption->Skip + DistanceValue - 1;
+ if ((MenuOption->Row + MenuOption->Skip == BottomRow + 1) &&
+ (NextMenuOption->ThisTag->OpCode->OpCode == EFI_IFR_DATE_OP ||
+ NextMenuOption->ThisTag->OpCode->OpCode == EFI_IFR_TIME_OP)
+ ) {
+ Temp ++;
+ }
+
+ //
+ // If we are going to scroll, update TopOfScreen
+ //
+ if (Temp > BottomRow) {
+ do {
+ //
+ // Is the current top of screen a zero-advance op-code?
+ // If so, keep moving forward till we hit a >0 advance op-code
+ //
+ SavedMenuOption = MENU_OPTION_FROM_LINK (TopOfScreen);
+
+ //
+ // If bottom op-code is more than one line or top op-code is more than one line
+ //
+ if ((DistanceValue > 1) || (SavedMenuOption->Skip > 1)) {
+ //
+ // Is the bottom op-code greater than or equal in size to the top op-code?
+ //
+ if ((Temp - BottomRow) >= (SavedMenuOption->Skip - SkipValue)) {
+ //
+ // Skip the top op-code
+ //
+ TopOfScreen = TopOfScreen->ForwardLink;
+ Difference = (Temp - BottomRow) - (SavedMenuOption->Skip - SkipValue);
+
+ SavedMenuOption = MENU_OPTION_FROM_LINK (TopOfScreen);
+
+ //
+ // If we have a remainder, skip that many more op-codes until we drain the remainder
+ //
+ while (Difference >= (INTN) SavedMenuOption->Skip) {
+ //
+ // Since the Difference is greater than or equal to this op-code's skip value, skip it
+ //
+ Difference = Difference - (INTN) SavedMenuOption->Skip;
+ TopOfScreen = TopOfScreen->ForwardLink;
+ SavedMenuOption = MENU_OPTION_FROM_LINK (TopOfScreen);
+ }
+ //
+ // Since we will act on this op-code in the next routine, and increment the
+ // SkipValue, set the skips to one less than what is required.
+ //
+ SkipValue = Difference - 1;
+ } else {
+ //
+ // Since we will act on this op-code in the next routine, and increment the
+ // SkipValue, set the skips to one less than what is required.
+ //
+ SkipValue += (Temp - BottomRow) - 1;
+ }
+ } else {
+ if ((SkipValue + 1) == (INTN) SavedMenuOption->Skip) {
+ TopOfScreen = TopOfScreen->ForwardLink;
+ break;
+ }
+ }
+ //
+ // If the op-code at the top of the screen is more than one line, let's not skip it yet
+ // Let's set a skip flag to smoothly scroll the top of the screen.
+ //
+ if (SavedMenuOption->Skip > 1) {
+ if (SavedMenuOption == NextMenuOption) {
+ SkipValue = 0;
+ } else {
+ SkipValue++;
+ }
+ } else if (SavedMenuOption->Skip == 1) {
+ SkipValue = 0;
+ } else {
+ SkipValue = 0;
+ TopOfScreen = TopOfScreen->ForwardLink;
+ }
+ } while (SavedMenuOption->Skip == 0);
+
+ Repaint = TRUE;
+ } else if (!IsSelectable (NextMenuOption)) {
+ //
+ // Continue to go down until scroll to next page or the selectable option is found.
+ //
+ ScreenOperation = UiDown;
+ ControlFlag = CfScreenOperation;
+ }
+
+ MenuOption = MENU_OPTION_FROM_LINK (SavedListEntry);
+
+ UpdateStatusBar (INPUT_ERROR, FALSE);
+
+ } else {
+ //
+ // Scroll to the first page.
+ //
+ if (TopOfScreen != gMenuOption.ForwardLink) {
+ TopOfScreen = gMenuOption.ForwardLink;
+ Repaint = TRUE;
+ MenuOption = NULL;
+ } else {
+ //
+ // Need to remove the current highlight menu.
+ // MenuOption saved the last highlight menu info.
+ //
+ MenuOption = MENU_OPTION_FROM_LINK (SavedListEntry);
+ }
+
+ SkipValue = 0;
+ NewLine = TRUE;
+ //
+ // Get the next highlight menu.
+ //
+ NewPos = gMenuOption.ForwardLink;
+ MoveToNextStatement (FALSE, &NewPos, BottomRow - TopRow);
+ }
+
+ //
+ // If we are at the end of the list and sitting on a Date/Time op, rewind to the head.
+ //
+ AdjustDateAndTimePosition (TRUE, &TopOfScreen);
+ AdjustDateAndTimePosition (TRUE, &NewPos);
+ break;
+
+ case CfUiNoOperation:
+ ControlFlag = CfRepaint;
+ break;
+
+ case CfExit:
+ if (HelpString != NULL) {
+ FreePool (HelpString);
+ }
+ if (HelpHeaderString != NULL) {
+ FreePool (HelpHeaderString);
+ }
+ if (HelpBottomString != NULL) {
+ FreePool (HelpBottomString);
+ }
+ return EFI_SUCCESS;
+
+ default:
+ break;
+ }
+ }
+}
+
+/**
+
+ Base on the browser status info to show an pop up message.
+
+**/
+VOID
+BrowserStatusProcess (
+ VOID
+ )
+{
+ CHAR16 *ErrorInfo;
+ EFI_INPUT_KEY Key;
+
+ if (gFormData->BrowserStatus == BROWSER_SUCCESS) {
+ return;
+ }
+
+ if (gFormData->ErrorString != NULL) {
+ ErrorInfo = gFormData->ErrorString;
+ } else {
+ switch (gFormData->BrowserStatus) {
+ case BROWSER_SUBMIT_FAIL:
+ ErrorInfo = gSaveFailed;
+ break;
+
+ case BROWSER_NO_SUBMIT_IF:
+ ErrorInfo = gNoSubmitIf;
+ break;
+
+ case BROWSER_FORM_NOT_FOUND:
+ ErrorInfo = gFormNotFound;
+ break;
+
+ case BROWSER_FORM_SUPPRESS:
+ ErrorInfo = gFormSuppress;
+ break;
+
+ case BROWSER_PROTOCOL_NOT_FOUND:
+ ErrorInfo = gProtocolNotFound;
+ break;
+
+ default:
+ ErrorInfo = gBrwoserError;
+ break;
+ }
+ }
+
+ //
+ // Error occur, prompt error message.
+ //
+ do {
+ CreateDialog (&Key, gEmptyString, ErrorInfo, gPressEnter, gEmptyString, NULL);
+ } while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);
+}
+
+/**
+ Display one form, and return user input.
+
+ @param FormData Form Data to be shown.
+ @param UserInputData User input data.
+
+ @retval EFI_SUCCESS 1.Form Data is shown, and user input is got.
+ 2.Error info has show and return.
+ @retval EFI_INVALID_PARAMETER The input screen dimension is not valid
+ @retval EFI_NOT_FOUND New form data has some error.
+**/
+EFI_STATUS
+EFIAPI
+FormDisplay (
+ IN FORM_DISPLAY_ENGINE_FORM *FormData,
+ OUT USER_INPUT *UserInputData
+ )
+{
+ EFI_STATUS Status;
+
+ ASSERT (FormData != NULL);
+ if (FormData == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ gUserInput = UserInputData;
+ gFormData = FormData;
+
+ //
+ // Process the status info first.
+ //
+ BrowserStatusProcess();
+ if (UserInputData == NULL) {
+ //
+ // UserInputData == NULL, means only need to print the error info, return here.
+ //
+ return EFI_SUCCESS;
+ }
+
+ ConvertStatementToMenu();
+
+ Status = DisplayPageFrame (FormData, &gStatementDimensions);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (CompareMem (&gOldStatementDimensions, &gStatementDimensions, sizeof (gStatementDimensions)) == 0) {
+ mStatementLayoutIsChanged = FALSE;
+ } else {
+ mStatementLayoutIsChanged = TRUE;
+ CopyMem (&gOldStatementDimensions, &gStatementDimensions, sizeof (gStatementDimensions));
+ }
+
+ Status = UiDisplayMenu(FormData);
+
+ return Status;
+}
+
+/**
+ Initialize Setup Browser driver.
+
+ @param ImageHandle The image handle.
+ @param SystemTable The system table.
+
+ @retval EFI_SUCCESS The Setup Browser module is initialized correctly..
+ @return Other value if failed to initialize the Setup Browser module.
+
+**/
+EFI_STATUS
+EFIAPI
+InitializeDisplayEngine (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ EFI_INPUT_KEY HotKey;
+ EFI_STRING NewString;
+ EDKII_FORM_BROWSER_EXTENSION2_PROTOCOL *FormBrowserEx2;
+
+ //
+ // Publish our HII data
+ //
+ gHiiHandle = HiiAddPackages (
+ &gDisplayEngineGuid,
+ ImageHandle,
+ DisplayEngineStrings,
+ NULL
+ );
+ ASSERT (gHiiHandle != NULL);
+
+ //
+ // Install Form Display protocol
+ //
+ Status = gBS->InstallProtocolInterface (
+ &mPrivateData.Handle,
+ &gEdkiiFormDisplayEngineProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &mPrivateData.FromDisplayProt
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ InitializeDisplayStrings();
+
+ //
+ // Use BrowserEx2 protocol to register HotKey.
+ //
+ Status = gBS->LocateProtocol (&gEdkiiFormBrowserEx2ProtocolGuid, NULL, (VOID **) &FormBrowserEx2);
+ if (!EFI_ERROR (Status)) {
+ //
+ // Register the default HotKey F9 and F10 again.
+ //
+ HotKey.UnicodeChar = CHAR_NULL;
+ HotKey.ScanCode = SCAN_F10;
+ NewString = HiiGetString (gHiiHandle, STRING_TOKEN (FUNCTION_TEN_STRING), NULL);
+ ASSERT (NewString != NULL);
+ FormBrowserEx2->RegisterHotKey (&HotKey, BROWSER_ACTION_SUBMIT, 0, NewString);
+
+ HotKey.ScanCode = SCAN_F9;
+ NewString = HiiGetString (gHiiHandle, STRING_TOKEN (FUNCTION_NINE_STRING), NULL);
+ ASSERT (NewString != NULL);
+ FormBrowserEx2->RegisterHotKey (&HotKey, BROWSER_ACTION_DEFAULT, EFI_HII_DEFAULT_CLASS_STANDARD, NewString);
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ This is the default unload handle for display core drivers.
+
+ @param[in] ImageHandle The drivers' driver image.
+
+ @retval EFI_SUCCESS The image is unloaded.
+ @retval Others Failed to unload the image.
+
+**/
+EFI_STATUS
+EFIAPI
+UnloadDisplayEngine (
+ IN EFI_HANDLE ImageHandle
+ )
+{
+ HiiRemovePackages(gHiiHandle);
+
+ FreeDisplayStrings ();
+
+ return EFI_SUCCESS;
+}
|