diff options
Diffstat (limited to 'MdeModulePkg/Universal/SetupBrowserDxe/Ui.c')
| -rw-r--r-- | MdeModulePkg/Universal/SetupBrowserDxe/Ui.c | 4027 |
1 files changed, 0 insertions, 4027 deletions
diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/Ui.c b/MdeModulePkg/Universal/SetupBrowserDxe/Ui.c deleted file mode 100644 index 7c246b60e1..0000000000 --- a/MdeModulePkg/Universal/SetupBrowserDxe/Ui.c +++ /dev/null @@ -1,4027 +0,0 @@ -/** @file
-Utility functions for User Interface functions.
-
-Copyright (c) 2004 - 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 "Setup.h"
-
-LIST_ENTRY gMenuOption;
-LIST_ENTRY gMenuList;
-MENU_REFRESH_ENTRY *gMenuRefreshHead; // Menu list used for refresh timer opcode.
-MENU_REFRESH_ENTRY *gMenuEventGuidRefreshHead; // Menu list used for refresh event guid opcode.
-
-//
-// 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
- }
-};
-
-BOOLEAN mInputError;
-BOOLEAN GetLineByWidthFinished = FALSE;
-
-
-/**
- Set Buffer to Value for Size bytes.
-
- @param Buffer Memory to set.
- @param Size Number of bytes to set
- @param Value Value of the set operation.
-
-**/
-VOID
-SetUnicodeMem (
- IN VOID *Buffer,
- IN UINTN Size,
- IN CHAR16 Value
- )
-{
- CHAR16 *Ptr;
-
- Ptr = Buffer;
- while ((Size--) != 0) {
- *(Ptr++) = Value;
- }
-}
-
-
-/**
- Initialize Menu option list.
-
-**/
-VOID
-UiInitMenu (
- VOID
- )
-{
- InitializeListHead (&gMenuOption);
-}
-
-
-/**
- Free Menu option linked list.
-
-**/
-VOID
-UiFreeMenu (
- VOID
- )
-{
- UI_MENU_OPTION *MenuOption;
-
- while (!IsListEmpty (&gMenuOption)) {
- MenuOption = MENU_OPTION_FROM_LINK (gMenuOption.ForwardLink);
- RemoveEntryList (&MenuOption->Link);
-
- //
- // We allocated space for this description when we did a GetToken, free it here
- //
- if (MenuOption->Skip != 0) {
- //
- // For date/time, MenuOption->Description is shared by three Menu Options
- // Data format : [01/02/2004] [11:22:33]
- // Line number : 0 0 1 0 0 1
- //
- FreePool (MenuOption->Description);
- }
- FreePool (MenuOption);
- }
-}
-
-
-/**
- Create a menu with specified formset GUID and form ID, and add it as a child
- of the given parent menu.
-
- @param Parent The parent of menu to be added.
- @param HiiHandle Hii handle related to this formset.
- @param FormSetGuid The Formset Guid of menu to be added.
- @param FormId The Form ID of menu to be added.
-
- @return A pointer to the newly added menu or NULL if memory is insufficient.
-
-**/
-UI_MENU_LIST *
-UiAddMenuList (
- IN OUT UI_MENU_LIST *Parent,
- IN EFI_HII_HANDLE HiiHandle,
- IN EFI_GUID *FormSetGuid,
- IN UINT16 FormId
- )
-{
- UI_MENU_LIST *MenuList;
-
- MenuList = AllocateZeroPool (sizeof (UI_MENU_LIST));
- if (MenuList == NULL) {
- return NULL;
- }
-
- MenuList->Signature = UI_MENU_LIST_SIGNATURE;
- InitializeListHead (&MenuList->ChildListHead);
-
- MenuList->HiiHandle = HiiHandle;
- CopyMem (&MenuList->FormSetGuid, FormSetGuid, sizeof (EFI_GUID));
- MenuList->FormId = FormId;
- MenuList->Parent = Parent;
-
- if (Parent == NULL) {
- //
- // If parent is not specified, it is the root Form of a Formset
- //
- InsertTailList (&gMenuList, &MenuList->Link);
- } else {
- InsertTailList (&Parent->ChildListHead, &MenuList->Link);
- }
-
- return MenuList;
-}
-
-
-/**
- Search Menu with given FormId, FormSetGuid and Handle in all cached menu list.
-
- @param Parent The parent of menu to search.
- @param Handle Hii handle related to this formset.
- @param FormSetGuid The Formset GUID of the menu to search.
- @param FormId The Form ID of menu to search.
-
- @return A pointer to menu found or NULL if not found.
-
-**/
-UI_MENU_LIST *
-UiFindChildMenuList (
- IN UI_MENU_LIST *Parent,
- IN EFI_HII_HANDLE Handle,
- IN EFI_GUID *FormSetGuid,
- IN UINT16 FormId
- )
-{
- LIST_ENTRY *Link;
- UI_MENU_LIST *Child;
- UI_MENU_LIST *MenuList;
-
- ASSERT (Parent != NULL);
-
- if (Parent->FormId == FormId && CompareGuid (FormSetGuid, &Parent->FormSetGuid) && Parent->HiiHandle == Handle) {
- return Parent;
- }
-
- Link = GetFirstNode (&Parent->ChildListHead);
- while (!IsNull (&Parent->ChildListHead, Link)) {
- Child = UI_MENU_LIST_FROM_LINK (Link);
-
- MenuList = UiFindChildMenuList (Child, Handle, FormSetGuid, FormId);
- if (MenuList != NULL) {
- return MenuList;
- }
-
- Link = GetNextNode (&Parent->ChildListHead, Link);
- }
-
- return NULL;
-}
-
-
-/**
- Search Menu with given Handle, FormSetGuid and FormId in all cached menu list.
-
- @param Handle Hii handle related to this formset.
- @param FormSetGuid The Formset GUID of the menu to search.
- @param FormId The Form ID of menu to search.
-
- @return A pointer to menu found or NULL if not found.
-
-**/
-UI_MENU_LIST *
-UiFindMenuList (
- IN EFI_HII_HANDLE Handle,
- IN EFI_GUID *FormSetGuid,
- IN UINT16 FormId
- )
-{
- LIST_ENTRY *Link;
- UI_MENU_LIST *MenuList;
- UI_MENU_LIST *Child;
-
- Link = GetFirstNode (&gMenuList);
- while (!IsNull (&gMenuList, Link)) {
- MenuList = UI_MENU_LIST_FROM_LINK (Link);
-
- Child = UiFindChildMenuList(MenuList, Handle, FormSetGuid, FormId);
- if (Child != NULL) {
-
- //
- // If this form already in the menu history list,
- // just free the list between old this form.
- //
- UiFreeMenuList(&Child->ChildListHead);
- return Child;
- }
-
- Link = GetNextNode (&gMenuList, Link);
- }
-
- return NULL;
-}
-
-/**
- Free Menu list linked list.
-
- @param MenuListHead One Menu list point in the menu list.
-
-**/
-VOID
-UiFreeMenuList (
- LIST_ENTRY *MenuListHead
- )
-{
- UI_MENU_LIST *MenuList;
-
- while (!IsListEmpty (MenuListHead)) {
- MenuList = UI_MENU_LIST_FROM_LINK (MenuListHead->ForwardLink);
- RemoveEntryList (&MenuList->Link);
-
- UiFreeMenuList(&MenuList->ChildListHead);
- FreePool (MenuList);
- }
-
-}
-
-/**
- Free Menu option linked list.
-
-**/
-VOID
-UiFreeRefreshList (
- VOID
- )
-{
- MENU_REFRESH_ENTRY *OldMenuRefreshEntry;
-
- while (gMenuRefreshHead != NULL) {
- OldMenuRefreshEntry = gMenuRefreshHead->Next;
- FreePool (gMenuRefreshHead);
- gMenuRefreshHead = OldMenuRefreshEntry;
- }
-
- while (gMenuEventGuidRefreshHead != NULL) {
- OldMenuRefreshEntry = gMenuEventGuidRefreshHead->Next;
- if (gMenuEventGuidRefreshHead != NULL) {
- gBS->CloseEvent(gMenuEventGuidRefreshHead->Event);
- }
- FreePool (gMenuEventGuidRefreshHead);
- gMenuEventGuidRefreshHead = OldMenuRefreshEntry;
- }
-}
-
-
-/**
- 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_BROWSER_STATEMENT *Statement;
-
- ASSERT (MenuOption != NULL && OptionString != NULL);
-
- Statement = MenuOption->ThisTag;
-
- //
- // 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->Operand == EFI_IFR_DATE_OP) {
- //
- // OptionString format is: <**: **: ****>
- // |month|day|year|
- // 4 3 5
- //
- if ((Statement->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 ((Statement->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 ((Statement->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->Operand == EFI_IFR_TIME_OP) {
- //
- // OptionString format is: <**: **: **>
- // |hour|minute|second|
- // 4 3 3
- //
- if ((Statement->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 ((Statement->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 ((Statement->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' ');
- }
- }
-}
-
-/**
- Refresh question.
-
- @param MenuRefreshEntry Menu refresh structure which has info about the refresh question.
-**/
-EFI_STATUS
-RefreshQuestion (
- IN MENU_REFRESH_ENTRY *MenuRefreshEntry
- )
-{
- CHAR16 *OptionString;
- EFI_STATUS Status;
- UI_MENU_SELECTION *Selection;
- FORM_BROWSER_STATEMENT *Question;
-
- Selection = MenuRefreshEntry->Selection;
- Question = MenuRefreshEntry->MenuOption->ThisTag;
-
- Status = GetQuestionValue (Selection->FormSet, Selection->Form, Question, GetSetValueWithHiiDriver);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- OptionString = NULL;
- ProcessOptions (Selection, MenuRefreshEntry->MenuOption, FALSE, &OptionString);
-
- if (OptionString != NULL) {
- //
- // If old Text is longer than new string, need to clean the old string before paint the newer.
- // This option is no need for time/date opcode, because time/data opcode has fixed string length.
- //
- if ((MenuRefreshEntry->MenuOption->ThisTag->Operand != EFI_IFR_DATE_OP) &&
- (MenuRefreshEntry->MenuOption->ThisTag->Operand != EFI_IFR_TIME_OP)) {
- ClearLines (
- MenuRefreshEntry->CurrentColumn,
- MenuRefreshEntry->CurrentColumn + gOptionBlockWidth - 1,
- MenuRefreshEntry->CurrentRow,
- MenuRefreshEntry->CurrentRow,
- PcdGet8 (PcdBrowserFieldTextColor) | FIELD_BACKGROUND
- );
- }
-
- gST->ConOut->SetAttribute (gST->ConOut, MenuRefreshEntry->CurrentAttribute);
- ProcessStringForDateTime(MenuRefreshEntry->MenuOption, OptionString, FALSE);
- PrintStringAt (MenuRefreshEntry->CurrentColumn, MenuRefreshEntry->CurrentRow, OptionString);
- FreePool (OptionString);
- }
-
- //
- // Question value may be changed, need invoke its Callback()
- //
- Status = ProcessCallBackFunction (Selection, Question, EFI_BROWSER_ACTION_CHANGING, FALSE);
-
- return Status;
-}
-
-/**
- Refresh the question which has refresh guid event attribute.
-
- @param Event The event which has this function related.
- @param Context The input context info related to this event or the status code return to the caller.
-**/
-VOID
-EFIAPI
-RefreshQuestionNotify(
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-{
- MENU_REFRESH_ENTRY *MenuRefreshEntry;
- UI_MENU_SELECTION *Selection;
-
- //
- // Reset FormPackage update flag
- //
- mHiiPackageListUpdated = FALSE;
-
- MenuRefreshEntry = (MENU_REFRESH_ENTRY *)Context;
- ASSERT (MenuRefreshEntry != NULL);
- Selection = MenuRefreshEntry->Selection;
-
- RefreshQuestion (MenuRefreshEntry);
-
- if (mHiiPackageListUpdated) {
- //
- // Package list is updated, force to reparse IFR binary of target Formset
- //
- mHiiPackageListUpdated = FALSE;
- Selection->Action = UI_ACTION_REFRESH_FORMSET;
- }
-}
-
-
-/**
- Refresh screen.
-
-**/
-EFI_STATUS
-RefreshForm (
- VOID
- )
-{
- MENU_REFRESH_ENTRY *MenuRefreshEntry;
- EFI_STATUS Status;
- UI_MENU_SELECTION *Selection;
-
- if (gMenuRefreshHead != NULL) {
- //
- // call from refresh interval process.
- //
- MenuRefreshEntry = gMenuRefreshHead;
- Selection = MenuRefreshEntry->Selection;
- //
- // Reset FormPackage update flag
- //
- mHiiPackageListUpdated = FALSE;
-
- do {
- Status = RefreshQuestion (MenuRefreshEntry);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- MenuRefreshEntry = MenuRefreshEntry->Next;
-
- } while (MenuRefreshEntry != NULL);
-
- if (mHiiPackageListUpdated) {
- //
- // Package list is updated, force to reparse IFR binary of target Formset
- //
- mHiiPackageListUpdated = FALSE;
- Selection->Action = UI_ACTION_REFRESH_FORMSET;
- return EFI_SUCCESS;
- }
- }
-
- return EFI_TIMEOUT;
-}
-
-
-/**
- Wait for a given event to fire, or for an optional timeout to expire.
-
- @param Event The event to wait for
- @param Timeout An optional timeout value in 100 ns units.
- @param RefreshInterval Menu refresh interval (in seconds).
-
- @retval EFI_SUCCESS Event fired before Timeout expired.
- @retval EFI_TIME_OUT Timout expired before Event fired.
-
-**/
-EFI_STATUS
-UiWaitForSingleEvent (
- IN EFI_EVENT Event,
- IN UINT64 Timeout, OPTIONAL
- IN UINT8 RefreshInterval OPTIONAL
- )
-{
- EFI_STATUS Status;
- UINTN Index;
- EFI_EVENT TimerEvent;
- EFI_EVENT WaitList[2];
-
- if (Timeout != 0) {
- //
- // Create a timer event
- //
- Status = gBS->CreateEvent (EVT_TIMER, 0, NULL, NULL, &TimerEvent);
- if (!EFI_ERROR (Status)) {
- //
- // Set the timer event
- //
- gBS->SetTimer (
- TimerEvent,
- TimerRelative,
- Timeout
- );
-
- //
- // Wait for the original event or the timer
- //
- WaitList[0] = Event;
- WaitList[1] = TimerEvent;
- Status = gBS->WaitForEvent (2, WaitList, &Index);
- gBS->CloseEvent (TimerEvent);
-
- //
- // If the timer expired, change the return to timed out
- //
- if (!EFI_ERROR (Status) && Index == 1) {
- Status = EFI_TIMEOUT;
- }
- }
- } else {
- //
- // Update screen every second
- //
- if (RefreshInterval == 0) {
- Timeout = ONE_SECOND;
- } else {
- Timeout = RefreshInterval * ONE_SECOND;
- }
-
- do {
- Status = gBS->CreateEvent (EVT_TIMER, 0, NULL, NULL, &TimerEvent);
-
- //
- // Set the timer event
- //
- gBS->SetTimer (
- TimerEvent,
- TimerRelative,
- Timeout
- );
-
- //
- // Wait for the original event or the timer
- //
- WaitList[0] = Event;
- WaitList[1] = TimerEvent;
- Status = gBS->WaitForEvent (2, WaitList, &Index);
-
- //
- // If the timer expired, update anything that needs a refresh and keep waiting
- //
- if (!EFI_ERROR (Status) && Index == 1) {
- Status = EFI_TIMEOUT;
- if (RefreshInterval != 0) {
- Status = RefreshForm ();
- }
- }
-
- gBS->CloseEvent (TimerEvent);
- } while (Status == EFI_TIMEOUT);
- }
-
- return Status;
-}
-
-
-/**
- Add one menu option by specified description and context.
-
- @param String String description for this option.
- @param Handle Hii handle for the package list.
- @param Form The form this statement belong to.
- @param Statement Statement of this Menu Option.
- @param NumberOfLines Display lines for this Menu Option.
- @param MenuItemCount The index for this Option in the Menu.
-
- @retval Pointer Pointer to the added Menu Option.
-
-**/
-UI_MENU_OPTION *
-UiAddMenuOption (
- IN CHAR16 *String,
- IN EFI_HII_HANDLE Handle,
- IN FORM_BROWSER_FORM *Form,
- IN FORM_BROWSER_STATEMENT *Statement,
- IN UINT16 NumberOfLines,
- IN UINT16 MenuItemCount
- )
-{
- UI_MENU_OPTION *MenuOption;
- UINTN Index;
- UINTN Count;
-
- Count = 1;
- MenuOption = NULL;
-
- if (Statement->Operand == EFI_IFR_DATE_OP || Statement->Operand == 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;
-
- if (Statement->Storage == NULL) {
- //
- // For RTC type of date/time, set default refresh interval to be 1 second
- //
- if (Statement->RefreshInterval == 0) {
- Statement->RefreshInterval = 1;
- }
- }
- }
-
- 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 = Handle;
- MenuOption->ThisTag = Statement;
- 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 (EvaluateExpressionList(Statement->Expression, FALSE, NULL, NULL) == ExpressGrayOut ) {
- MenuOption->GrayOut = TRUE;
- } else {
- MenuOption->GrayOut = FALSE;
- }
-
- //
- // If the form or the question has the lock attribute, deal same as grayout.
- //
- if (Form->Locked || Statement->Locked) {
- MenuOption->GrayOut = TRUE;
- }
-
- switch (Statement->Operand) {
- 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 skipped on purpose
- //
- default:
- MenuOption->IsQuestion = FALSE;
- break;
- }
-
- if ((Statement->ValueExpression != NULL) ||
- ((Statement->QuestionFlags & EFI_IFR_FLAG_READ_ONLY) != 0)) {
- MenuOption->ReadOnly = TRUE;
- if (FeaturePcdGet (PcdBrowerGrayOutReadOnlyMenu)) {
- MenuOption->GrayOut = TRUE;
- }
- }
-
- InsertTailList (&gMenuOption, &MenuOption->Link);
- }
-
- return MenuOption;
-}
-
-
-/**
- Routine used to abstract a generic dialog interface and return the selected key or string
-
- @param NumberOfLines The number of lines for the dialog box
- @param HotKey Defines whether a single character is parsed
- (TRUE) and returned in KeyValue or a string is
- returned in StringBuffer. Two special characters
- are considered when entering a string, a SCAN_ESC
- and an CHAR_CARRIAGE_RETURN. SCAN_ESC terminates
- string input and returns
- @param MaximumStringSize The maximum size in bytes of a typed in string
- (each character is a CHAR16) and the minimum
- string returned is two bytes
- @param StringBuffer The passed in pointer to the buffer which will
- hold the typed in string if HotKey is FALSE
- @param KeyValue The EFI_KEY value returned if HotKey is TRUE..
- @param ... A series of (quantity == NumberOfLines) text
- strings which will be used to construct the dialog
- box
-
- @retval EFI_SUCCESS Displayed dialog and received user interaction
- @retval EFI_INVALID_PARAMETER One of the parameters was invalid (e.g.
- (StringBuffer == NULL) && (HotKey == FALSE))
- @retval EFI_DEVICE_ERROR User typed in an ESC character to exit the routine
-
-**/
-EFI_STATUS
-EFIAPI
-CreateDialog (
- IN UINTN NumberOfLines,
- IN BOOLEAN HotKey,
- IN UINTN MaximumStringSize,
- OUT CHAR16 *StringBuffer,
- OUT EFI_INPUT_KEY *KeyValue,
- ...
- )
-{
- VA_LIST Marker;
- UINTN Count;
- EFI_INPUT_KEY Key;
- UINTN LargestString;
- CHAR16 *TempString;
- CHAR16 *BufferedString;
- CHAR16 *StackString;
- CHAR16 KeyPad[2];
- UINTN Start;
- UINTN Top;
- UINTN Index;
- EFI_STATUS Status;
- BOOLEAN SelectionComplete;
- UINTN InputOffset;
- UINTN CurrentAttribute;
- UINTN DimensionsWidth;
- UINTN DimensionsHeight;
-
- DimensionsWidth = gScreenDimensions.RightColumn - gScreenDimensions.LeftColumn;
- DimensionsHeight = gScreenDimensions.BottomRow - gScreenDimensions.TopRow;
-
- SelectionComplete = FALSE;
- InputOffset = 0;
- TempString = AllocateZeroPool (MaximumStringSize * 2);
- BufferedString = AllocateZeroPool (MaximumStringSize * 2);
- CurrentAttribute = gST->ConOut->Mode->Attribute;
-
- ASSERT (TempString);
- ASSERT (BufferedString);
-
- //
- // Zero the outgoing buffer
- //
- ZeroMem (StringBuffer, MaximumStringSize);
-
- if (HotKey) {
- if (KeyValue == NULL) {
- return EFI_INVALID_PARAMETER;
- }
- } else {
- if (StringBuffer == NULL) {
- return EFI_INVALID_PARAMETER;
- }
- }
- //
- // Disable cursor
- //
- gST->ConOut->EnableCursor (gST->ConOut, FALSE);
-
- LargestString = 0;
-
- VA_START (Marker, KeyValue);
-
- //
- // Determine the largest string in the dialog box
- // Notice we are starting with 1 since String is the first string
- //
- for (Count = 0; Count < NumberOfLines; Count++) {
- StackString = VA_ARG (Marker, CHAR16 *);
-
- if (StackString[0] == L' ') {
- InputOffset = Count + 1;
- }
-
- if ((GetStringWidth (StackString) / 2) > LargestString) {
- //
- // Size of the string visually and subtract the width by one for the null-terminator
- //
- LargestString = (GetStringWidth (StackString) / 2);
- }
- }
- VA_END (Marker);
-
- Start = (DimensionsWidth - LargestString - 2) / 2 + gScreenDimensions.LeftColumn + 1;
- Top = ((DimensionsHeight - NumberOfLines - 2) / 2) + gScreenDimensions.TopRow - 1;
-
- Count = 0;
-
- //
- // Display the Popup
- //
- VA_START (Marker, KeyValue);
- CreateSharedPopUp (LargestString, NumberOfLines, Marker);
- VA_END (Marker);
-
- //
- // Take the first key typed and report it back?
- //
- if (HotKey) {
- Status = WaitForKeyStroke (&Key);
- ASSERT_EFI_ERROR (Status);
- CopyMem (KeyValue, &Key, sizeof (EFI_INPUT_KEY));
-
- } else {
- do {
- Status = WaitForKeyStroke (&Key);
-
- switch (Key.UnicodeChar) {
- case CHAR_NULL:
- switch (Key.ScanCode) {
- case SCAN_ESC:
- FreePool (TempString);
- FreePool (BufferedString);
- gST->ConOut->SetAttribute (gST->ConOut, CurrentAttribute);
- gST->ConOut->EnableCursor (gST->ConOut, TRUE);
- return EFI_DEVICE_ERROR;
-
- default:
- break;
- }
-
- break;
-
- case CHAR_CARRIAGE_RETURN:
- SelectionComplete = TRUE;
- FreePool (TempString);
- FreePool (BufferedString);
- gST->ConOut->SetAttribute (gST->ConOut, CurrentAttribute);
- gST->ConOut->EnableCursor (gST->ConOut, TRUE);
- return EFI_SUCCESS;
- break;
-
- case CHAR_BACKSPACE:
- if (StringBuffer[0] != CHAR_NULL) {
- for (Index = 0; StringBuffer[Index] != CHAR_NULL; Index++) {
- TempString[Index] = StringBuffer[Index];
- }
- //
- // Effectively truncate string by 1 character
- //
- TempString[Index - 1] = CHAR_NULL;
- StrCpy (StringBuffer, TempString);
- }
- //
- // break skipped on purpose
- //
-
- default:
- //
- // If it is the beginning of the string, don't worry about checking maximum limits
- //
- if ((StringBuffer[0] == CHAR_NULL) && (Key.UnicodeChar != CHAR_BACKSPACE)) {
- StrnCpy (StringBuffer, &Key.UnicodeChar, 1);
- StrnCpy (TempString, &Key.UnicodeChar, 1);
- } else if ((GetStringWidth (StringBuffer) < MaximumStringSize) && (Key.UnicodeChar != CHAR_BACKSPACE)) {
- KeyPad[0] = Key.UnicodeChar;
- KeyPad[1] = CHAR_NULL;
- StrCat (StringBuffer, 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, LargestString, L' ');
-
- PrintStringAt (Start + 1, Top + InputOffset, BufferedString);
-
- if ((GetStringWidth (StringBuffer) / 2) > (DimensionsWidth - 2)) {
- Index = (GetStringWidth (StringBuffer) / 2) - DimensionsWidth + 2;
- } else {
- Index = 0;
- }
-
- for (Count = 0; Index + 1 < GetStringWidth (StringBuffer) / 2; Index++, Count++) {
- BufferedString[Count] = StringBuffer[Index];
- }
-
- PrintStringAt (Start + 1, Top + InputOffset, BufferedString);
- break;
- }
- } while (!SelectionComplete);
- }
-
- gST->ConOut->SetAttribute (gST->ConOut, CurrentAttribute);
- gST->ConOut->EnableCursor (gST->ConOut, TRUE);
- return EFI_SUCCESS;
-}
-
-/**
- Draw a pop up windows based on the dimension, number of lines and
- strings specified.
-
- @param RequestedWidth The width of the pop-up.
- @param NumberOfLines The number of lines.
- @param Marker The variable argument list for the list of string to be printed.
-
-**/
-VOID
-CreateSharedPopUp (
- IN UINTN RequestedWidth,
- IN UINTN NumberOfLines,
- IN VA_LIST Marker
- )
-{
- UINTN Index;
- UINTN Count;
- CHAR16 Character;
- UINTN Start;
- UINTN End;
- UINTN Top;
- UINTN Bottom;
- CHAR16 *String;
- UINTN DimensionsWidth;
- UINTN DimensionsHeight;
-
- DimensionsWidth = gScreenDimensions.RightColumn - gScreenDimensions.LeftColumn;
- DimensionsHeight = gScreenDimensions.BottomRow - gScreenDimensions.TopRow;
-
- gST->ConOut->SetAttribute (gST->ConOut, POPUP_TEXT | POPUP_BACKGROUND);
-
- if ((RequestedWidth + 2) > DimensionsWidth) {
- RequestedWidth = DimensionsWidth - 2;
- }
-
- //
- // Subtract the PopUp width from total Columns, allow for one space extra on
- // each end plus a border.
- //
- Start = (DimensionsWidth - RequestedWidth - 2) / 2 + gScreenDimensions.LeftColumn + 1;
- End = Start + RequestedWidth + 1;
-
- Top = ((DimensionsHeight - NumberOfLines - 2) / 2) + gScreenDimensions.TopRow - 1;
- Bottom = Top + NumberOfLines + 2;
-
- Character = BOXDRAW_DOWN_RIGHT;
- PrintCharAt (Start, Top, Character);
- Character = BOXDRAW_HORIZONTAL;
- for (Index = Start; Index + 2 < End; Index++) {
- PrintChar (Character);
- }
-
- Character = BOXDRAW_DOWN_LEFT;
- PrintChar (Character);
- Character = BOXDRAW_VERTICAL;
-
- Count = 0;
- for (Index = Top; Index + 2 < Bottom; Index++, Count++) {
- String = VA_ARG (Marker, CHAR16*);
-
- //
- // This will clear the background of the line - we never know who might have been
- // here before us. This differs from the next clear in that it used the non-reverse
- // video for normal printing.
- //
- if (GetStringWidth (String) / 2 > 1) {
- ClearLines (Start, End, Index + 1, Index + 1, POPUP_TEXT | POPUP_BACKGROUND);
- }
-
- //
- // Passing in a space results in the assumption that this is where typing will occur
- //
- if (String[0] == L' ') {
- ClearLines (Start + 1, End - 1, Index + 1, Index + 1, POPUP_INVERSE_TEXT | POPUP_INVERSE_BACKGROUND);
- }
-
- //
- // Passing in a NULL results in a blank space
- //
- if (String[0] == CHAR_NULL) {
- ClearLines (Start, End, Index + 1, Index + 1, POPUP_TEXT | POPUP_BACKGROUND);
- }
-
- PrintStringAt (
- ((DimensionsWidth - GetStringWidth (String) / 2) / 2) + gScreenDimensions.LeftColumn + 1,
- Index + 1,
- String
- );
- gST->ConOut->SetAttribute (gST->ConOut, POPUP_TEXT | POPUP_BACKGROUND);
- PrintCharAt (Start, Index + 1, Character);
- PrintCharAt (End - 1, Index + 1, Character);
- }
-
- Character = BOXDRAW_UP_RIGHT;
- PrintCharAt (Start, Bottom - 1, Character);
- Character = BOXDRAW_HORIZONTAL;
- for (Index = Start; Index + 2 < End; Index++) {
- PrintChar (Character);
- }
-
- Character = BOXDRAW_UP_LEFT;
- PrintChar (Character);
-}
-
-/**
- Draw a pop up windows based on the dimension, number of lines and
- strings specified.
-
- @param RequestedWidth The width of the pop-up.
- @param NumberOfLines The number of lines.
- @param ... A series of text strings that displayed in the pop-up.
-
-**/
-VOID
-EFIAPI
-CreateMultiStringPopUp (
- IN UINTN RequestedWidth,
- IN UINTN NumberOfLines,
- ...
- )
-{
- VA_LIST Marker;
-
- VA_START (Marker, NumberOfLines);
-
- CreateSharedPopUp (RequestedWidth, NumberOfLines, Marker);
-
- VA_END (Marker);
-}
-
-
-/**
- Update status bar on the bottom of menu.
-
- @param Selection Current Selction info.
- @param MessageType The type of message to be shown.
- @param Flags The flags in Question header.
- @param State Set or clear.
-
-**/
-VOID
-UpdateStatusBar (
- IN UI_MENU_SELECTION *Selection,
- IN UINTN MessageType,
- IN UINT8 Flags,
- IN BOOLEAN State
- )
-{
- UINTN Index;
- CHAR16 *NvUpdateMessage;
- CHAR16 *InputErrorMessage;
- LIST_ENTRY *Link;
- FORM_BROWSER_FORMSET *LocalFormSet;
- FORM_BROWSER_STATEMENT *Question;
-
- NvUpdateMessage = GetToken (STRING_TOKEN (NV_UPDATE_MESSAGE), gHiiHandle);
- InputErrorMessage = GetToken (STRING_TOKEN (INPUT_ERROR_MESSAGE), gHiiHandle);
-
- switch (MessageType) {
- case INPUT_ERROR:
- if (State) {
- gST->ConOut->SetAttribute (gST->ConOut, ERROR_TEXT);
- PrintStringAt (
- gScreenDimensions.LeftColumn + gPromptBlockWidth,
- gScreenDimensions.BottomRow - 1,
- InputErrorMessage
- );
- mInputError = TRUE;
- } else {
- gST->ConOut->SetAttribute (gST->ConOut, PcdGet8 (PcdBrowserFieldTextHighlightColor));
- for (Index = 0; Index < (GetStringWidth (InputErrorMessage) - 2) / 2; Index++) {
- PrintAt (gScreenDimensions.LeftColumn + gPromptBlockWidth + Index, gScreenDimensions.BottomRow - 1, L" ");
- }
-
- mInputError = FALSE;
- }
- break;
-
- case NV_UPDATE_REQUIRED:
- //
- // Global setting support. Show configuration change on every form.
- //
- if (State) {
- gResetRequired = (BOOLEAN) (gResetRequired | ((Flags & EFI_IFR_FLAG_RESET_REQUIRED) == EFI_IFR_FLAG_RESET_REQUIRED));
-
- if (Selection != NULL && Selection->Statement != NULL) {
- Question = Selection->Statement;
- if (Question->Storage != NULL || Question->Operand == EFI_IFR_DATE_OP || Question->Operand == EFI_IFR_TIME_OP) {
- //
- // Update only for Question value that need to be saved into Storage.
- //
- Selection->Form->NvUpdateRequired = TRUE;
- }
- }
-
- if (Selection == NULL || IsNvUpdateRequired (Selection->FormSet)) {
- gST->ConOut->SetAttribute (gST->ConOut, INFO_TEXT);
- PrintStringAt (
- gScreenDimensions.LeftColumn + gPromptBlockWidth + gOptionBlockWidth,
- gScreenDimensions.BottomRow - 1,
- NvUpdateMessage
- );
- }
- } else {
- gST->ConOut->SetAttribute (gST->ConOut, PcdGet8 (PcdBrowserFieldTextHighlightColor));
- for (Index = 0; Index < (GetStringWidth (NvUpdateMessage) - 2) / 2; Index++) {
- PrintAt (
- (gScreenDimensions.LeftColumn + gPromptBlockWidth + gOptionBlockWidth + Index),
- gScreenDimensions.BottomRow - 1,
- L" "
- );
- }
- }
- break;
-
- case REFRESH_STATUS_BAR:
- if (mInputError) {
- UpdateStatusBar (Selection, INPUT_ERROR, Flags, TRUE);
- }
-
- switch (gBrowserSettingScope) {
- case SystemLevel:
- //
- // Check the maintain list to see whether there is any change.
- //
- Link = GetFirstNode (&gBrowserFormSetList);
- while (!IsNull (&gBrowserFormSetList, Link)) {
- LocalFormSet = FORM_BROWSER_FORMSET_FROM_LINK (Link);
- if (IsNvUpdateRequired(LocalFormSet)) {
- UpdateStatusBar (NULL, NV_UPDATE_REQUIRED, Flags, TRUE);
- break;
- }
- Link = GetNextNode (&gBrowserFormSetList, Link);
- }
- break;
- case FormSetLevel:
- case FormLevel:
- UpdateStatusBar (Selection, NV_UPDATE_REQUIRED, Flags, TRUE);
- default:
- break;
- }
-
- break;
-
- default:
- break;
- }
-
- FreePool (InputErrorMessage);
- FreePool (NvUpdateMessage);
- return ;
-}
-
-
-/**
- Get the supported width for a particular op-code
-
- @param Statement The FORM_BROWSER_STATEMENT structure passed in.
- @param Handle The handle in the HII database being used
-
- @return Returns the number of CHAR16 characters that is support.
-
-**/
-UINT16
-GetWidth (
- IN FORM_BROWSER_STATEMENT *Statement,
- IN EFI_HII_HANDLE Handle
- )
-{
- CHAR16 *String;
- UINTN Size;
- UINT16 Width;
-
- Size = 0;
-
- //
- // See if the second text parameter is really NULL
- //
- if ((Statement->Operand == EFI_IFR_TEXT_OP) && (Statement->TextTwo != 0)) {
- String = GetToken (Statement->TextTwo, Handle);
- Size = StrLen (String);
- FreePool (String);
- }
-
- if ((Statement->Operand == EFI_IFR_SUBTITLE_OP) ||
- (Statement->Operand == EFI_IFR_REF_OP) ||
- (Statement->Operand == EFI_IFR_PASSWORD_OP) ||
- (Statement->Operand == EFI_IFR_ACTION_OP) ||
- (Statement->Operand == EFI_IFR_RESET_BUTTON_OP) ||
- //
- // Allow a wide display if text op-code and no secondary text op-code
- //
- ((Statement->Operand == EFI_IFR_TEXT_OP) && (Size == 0))
- ) {
- Width = (UINT16) (gPromptBlockWidth + gOptionBlockWidth);
- } else {
- Width = (UINT16) gPromptBlockWidth;
- }
-
- if (Statement->InSubtitle) {
- Width -= SUBTITLE_INDENT;
- }
-
- 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;
-}
-
-
-/**
- Update display lines for a Menu Option.
-
- @param Selection The user's selection.
- @param MenuOption The MenuOption to be checked.
-
-**/
-VOID
-UpdateOptionSkipLines (
- IN UI_MENU_SELECTION *Selection,
- IN UI_MENU_OPTION *MenuOption
- )
-{
- UINTN Index;
- UINT16 Width;
- UINTN Row;
- UINTN OriginalRow;
- CHAR16 *OutputString;
- CHAR16 *OptionString;
- UINT16 GlyphWidth;
-
- Row = 0;
- OptionString = NULL;
- Width = (UINT16) gOptionBlockWidth;
- OriginalRow = 0;
- GlyphWidth = 1;
-
- ProcessOptions (Selection, MenuOption, FALSE, &OptionString);
- if (OptionString == NULL) {
- return;
- }
-
- for (Index = 0; GetLineByWidth (OptionString, Width, &GlyphWidth, &Index, &OutputString) != 0x0000;) {
- //
- // If there is more string to process print on the next row and increment the Skip value
- //
- if (StrLen (&OptionString[Index]) != 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 (OptionString != NULL) {
- 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->Operand == EFI_IFR_SUBTITLE_OP) ||
- MenuOption->GrayOut || MenuOption->ReadOnly) {
- return FALSE;
- } else {
- return TRUE;
- }
-}
-
-
-/**
- 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;
-}
-
-
-/**
- Move to next selectable statement.
-
- This is an internal function.
-
- @param Selection Menu selection.
- @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 UI_MENU_SELECTION *Selection,
- 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 (Selection, 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;
-}
-
-
-/**
- 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->Operand == EFI_IFR_DATE_OP) ||
- (MenuOption->ThisTag->Operand == 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;
-}
-
-/**
- Find HII Handle in the HII database associated with given Device Path.
-
- If DevicePath is NULL, then ASSERT.
-
- @param DevicePath Device Path associated with the HII package list
- handle.
-
- @retval Handle HII package list Handle associated with the Device
- Path.
- @retval NULL Hii Package list handle is not found.
-
-**/
-EFI_HII_HANDLE
-EFIAPI
-DevicePathToHiiHandle (
- IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
- )
-{
- EFI_STATUS Status;
- EFI_DEVICE_PATH_PROTOCOL *TmpDevicePath;
- UINTN BufferSize;
- UINTN HandleCount;
- UINTN Index;
- EFI_HANDLE Handle;
- EFI_HANDLE DriverHandle;
- EFI_HII_HANDLE *HiiHandles;
- EFI_HII_HANDLE HiiHandle;
-
- ASSERT (DevicePath != NULL);
-
- TmpDevicePath = DevicePath;
- //
- // Locate Device Path Protocol handle buffer
- //
- Status = gBS->LocateDevicePath (
- &gEfiDevicePathProtocolGuid,
- &TmpDevicePath,
- &DriverHandle
- );
- if (EFI_ERROR (Status) || !IsDevicePathEnd (TmpDevicePath)) {
- return NULL;
- }
-
- //
- // Retrieve all HII Handles from HII database
- //
- BufferSize = 0x1000;
- HiiHandles = AllocatePool (BufferSize);
- ASSERT (HiiHandles != NULL);
- Status = mHiiDatabase->ListPackageLists (
- mHiiDatabase,
- EFI_HII_PACKAGE_TYPE_ALL,
- NULL,
- &BufferSize,
- HiiHandles
- );
- if (Status == EFI_BUFFER_TOO_SMALL) {
- FreePool (HiiHandles);
- HiiHandles = AllocatePool (BufferSize);
- ASSERT (HiiHandles != NULL);
-
- Status = mHiiDatabase->ListPackageLists (
- mHiiDatabase,
- EFI_HII_PACKAGE_TYPE_ALL,
- NULL,
- &BufferSize,
- HiiHandles
- );
- }
-
- if (EFI_ERROR (Status)) {
- FreePool (HiiHandles);
- return NULL;
- }
-
- //
- // Search Hii Handle by Driver Handle
- //
- HiiHandle = NULL;
- HandleCount = BufferSize / sizeof (EFI_HII_HANDLE);
- for (Index = 0; Index < HandleCount; Index++) {
- Status = mHiiDatabase->GetPackageListHandle (
- mHiiDatabase,
- HiiHandles[Index],
- &Handle
- );
- if (!EFI_ERROR (Status) && (Handle == DriverHandle)) {
- HiiHandle = HiiHandles[Index];
- break;
- }
- }
-
- FreePool (HiiHandles);
- return HiiHandle;
-}
-
-/**
- Find HII Handle in the HII database associated with given form set guid.
-
- If FormSetGuid is NULL, then ASSERT.
-
- @param ComparingGuid FormSet Guid associated with the HII package list
- handle.
-
- @retval Handle HII package list Handle associated with the Device
- Path.
- @retval NULL Hii Package list handle is not found.
-
-**/
-EFI_HII_HANDLE
-FormSetGuidToHiiHandle (
- EFI_GUID *ComparingGuid
- )
-{
- EFI_HII_HANDLE *HiiHandles;
- UINTN Index;
- EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;
- UINTN BufferSize;
- UINT32 Offset;
- UINT32 Offset2;
- UINT32 PackageListLength;
- EFI_HII_PACKAGE_HEADER PackageHeader;
- UINT8 *Package;
- UINT8 *OpCodeData;
- EFI_STATUS Status;
- EFI_HII_HANDLE HiiHandle;
-
- ASSERT (ComparingGuid != NULL);
-
- HiiHandle = NULL;
- //
- // Get all the Hii handles
- //
- HiiHandles = HiiGetHiiHandles (NULL);
- ASSERT (HiiHandles != NULL);
-
- //
- // Search for formset of each class type
- //
- for (Index = 0; HiiHandles[Index] != NULL; Index++) {
- BufferSize = 0;
- HiiPackageList = NULL;
- Status = mHiiDatabase->ExportPackageLists (mHiiDatabase, HiiHandles[Index], &BufferSize, HiiPackageList);
- if (Status == EFI_BUFFER_TOO_SMALL) {
- HiiPackageList = AllocatePool (BufferSize);
- ASSERT (HiiPackageList != NULL);
-
- Status = mHiiDatabase->ExportPackageLists (mHiiDatabase, HiiHandles[Index], &BufferSize, HiiPackageList);
- }
- if (EFI_ERROR (Status) || HiiPackageList == NULL) {
- return NULL;
- }
-
- //
- // Get Form package from this HII package List
- //
- Offset = sizeof (EFI_HII_PACKAGE_LIST_HEADER);
- Offset2 = 0;
- CopyMem (&PackageListLength, &HiiPackageList->PackageLength, sizeof (UINT32));
-
- while (Offset < PackageListLength) {
- Package = ((UINT8 *) HiiPackageList) + Offset;
- CopyMem (&PackageHeader, Package, sizeof (EFI_HII_PACKAGE_HEADER));
-
- if (PackageHeader.Type == EFI_HII_PACKAGE_FORMS) {
- //
- // Search FormSet in this Form Package
- //
- Offset2 = sizeof (EFI_HII_PACKAGE_HEADER);
- while (Offset2 < PackageHeader.Length) {
- OpCodeData = Package + Offset2;
-
- if (((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode == EFI_IFR_FORM_SET_OP) {
- //
- // Try to compare against formset GUID
- //
- if (CompareGuid (ComparingGuid, (EFI_GUID *)(OpCodeData + sizeof (EFI_IFR_OP_HEADER)))) {
- HiiHandle = HiiHandles[Index];
- break;
- }
- }
-
- Offset2 += ((EFI_IFR_OP_HEADER *) OpCodeData)->Length;
- }
- }
- if (HiiHandle != NULL) {
- break;
- }
- Offset += PackageHeader.Length;
- }
-
- FreePool (HiiPackageList);
- if (HiiHandle != NULL) {
- break;
- }
- }
-
- FreePool (HiiHandles);
-
- return HiiHandle;
-}
-
-/**
- Process the goto op code, update the info in the selection structure.
-
- @param Statement The statement belong to goto op code.
- @param Selection The selection info.
- @param Repaint Whether need to repaint the menu.
- @param NewLine Whether need to create new line.
-
- @retval EFI_SUCCESS The menu process successfully.
- @return Other value if the process failed.
-**/
-EFI_STATUS
-ProcessGotoOpCode (
- IN OUT FORM_BROWSER_STATEMENT *Statement,
- IN OUT UI_MENU_SELECTION *Selection,
- OUT BOOLEAN *Repaint,
- OUT BOOLEAN *NewLine
- )
-{
- CHAR16 *StringPtr;
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- FORM_BROWSER_FORM *RefForm;
- EFI_INPUT_KEY Key;
- EFI_STATUS Status;
-
- Status = EFI_SUCCESS;
- StringPtr = NULL;
-
- //
- // Prepare the device path check, get the device path info first.
- //
- if (Statement->HiiValue.Value.ref.DevicePath != 0) {
- StringPtr = GetToken (Statement->HiiValue.Value.ref.DevicePath, Selection->FormSet->HiiHandle);
- }
-
- //
- // Check whether the device path string is a valid string.
- //
- if (Statement->HiiValue.Value.ref.DevicePath != 0 && StringPtr != NULL) {
- if (Selection->Form->ModalForm) {
- return Status;
- }
-
- //
- // Goto another Hii Package list
- //
- if (mPathFromText != NULL) {
- DevicePath = mPathFromText->ConvertTextToDevicePath(StringPtr);
- if (DevicePath != NULL) {
- Selection->Handle = DevicePathToHiiHandle (DevicePath);
- FreePool (DevicePath);
- }
- FreePool (StringPtr);
- } else {
- //
- // Not found the EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL protocol.
- //
- do {
- CreateDialog (4, TRUE, 0, NULL, &Key, gEmptyString, gProtocolNotFound, gPressEnter, gEmptyString);
- } while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);
- if (Repaint != NULL) {
- *Repaint = TRUE;
- }
- FreePool (StringPtr);
- return Status;
- }
-
- Selection->Action = UI_ACTION_REFRESH_FORMSET;
- if (Selection->Handle == NULL) {
- //
- // If target Hii Handle not found, exit
- //
- Selection->Action = UI_ACTION_EXIT;
- Selection->Statement = NULL;
- return Status;
- }
-
- CopyMem (&Selection->FormSetGuid,&Statement->HiiValue.Value.ref.FormSetGuid, sizeof (EFI_GUID));
- Selection->FormId = Statement->HiiValue.Value.ref.FormId;
- Selection->QuestionId = Statement->HiiValue.Value.ref.QuestionId;
- } else if (!CompareGuid (&Statement->HiiValue.Value.ref.FormSetGuid, &gZeroGuid)) {
- if (Selection->Form->ModalForm) {
- return Status;
- }
- //
- // Goto another Formset, check for uncommitted data
- //
- Selection->Action = UI_ACTION_REFRESH_FORMSET;
-
- Selection->Handle = FormSetGuidToHiiHandle(&Statement->HiiValue.Value.ref.FormSetGuid);
- if (Selection->Handle == NULL) {
- //
- // If target Hii Handle not found, exit
- //
- Selection->Action = UI_ACTION_EXIT;
- Selection->Statement = NULL;
- return Status;
- }
-
- CopyMem (&Selection->FormSetGuid, &Statement->HiiValue.Value.ref.FormSetGuid, sizeof (EFI_GUID));
- Selection->FormId = Statement->HiiValue.Value.ref.FormId;
- Selection->QuestionId = Statement->HiiValue.Value.ref.QuestionId;
- } else if (Statement->HiiValue.Value.ref.FormId != 0) {
- //
- // Check whether target From is suppressed.
- //
- RefForm = IdToForm (Selection->FormSet, Statement->HiiValue.Value.ref.FormId);
-
- if ((RefForm != NULL) && (RefForm->SuppressExpression != NULL)) {
- if (EvaluateExpressionList(RefForm->SuppressExpression, TRUE, Selection->FormSet, RefForm) != ExpressFalse) {
- //
- // Form is suppressed.
- //
- do {
- CreateDialog (4, TRUE, 0, NULL, &Key, gEmptyString, gFormSuppress, gPressEnter, gEmptyString);
- } while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);
- if (Repaint != NULL) {
- *Repaint = TRUE;
- }
- return Status;
- }
- }
-
- //
- // Goto another form inside this formset,
- //
- Selection->Action = UI_ACTION_REFRESH_FORM;
-
- Selection->FormId = Statement->HiiValue.Value.ref.FormId;
- Selection->QuestionId = Statement->HiiValue.Value.ref.QuestionId;
- } else if (Statement->HiiValue.Value.ref.QuestionId != 0) {
- //
- // Goto another Question
- //
- Selection->QuestionId = Statement->HiiValue.Value.ref.QuestionId;
-
- if ((Statement->QuestionFlags & EFI_IFR_FLAG_CALLBACK) != 0) {
- Selection->Action = UI_ACTION_REFRESH_FORM;
- } else {
- if (Repaint != NULL) {
- *Repaint = TRUE;
- }
- if (NewLine != NULL) {
- *NewLine = TRUE;
- }
- }
- } else {
- if ((Statement->QuestionFlags & EFI_IFR_FLAG_CALLBACK) != 0) {
- Selection->Action = UI_ACTION_REFRESH_FORM;
- }
- }
-
- return Status;
-}
-
-/**
- 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 Selection Menu selection.
-
- @retval EFI_SUCESSS This function always return successfully for now.
-
-**/
-EFI_STATUS
-UiDisplayMenu (
- IN OUT UI_MENU_SELECTION *Selection
- )
-{
- INTN SkipValue;
- INTN Difference;
- UINTN DistanceValue;
- UINTN Row;
- UINTN Col;
- UINTN Temp;
- UINTN Temp2;
- 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 SavedValue;
- BOOLEAN UpArrow;
- BOOLEAN DownArrow;
- BOOLEAN InitializedFlag;
- 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;
- EFI_SCREEN_DESCRIPTOR LocalScreen;
- MENU_REFRESH_ENTRY *MenuRefreshEntry;
- MENU_REFRESH_ENTRY *MenuUpdateEntry;
- UI_SCREEN_OPERATION ScreenOperation;
- UINT8 MinRefreshInterval;
- UINT16 DefaultId;
- FORM_BROWSER_STATEMENT *Statement;
- UI_MENU_LIST *CurrentMenu;
- 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;
-
- CopyMem (&LocalScreen, &gScreenDimensions, sizeof (EFI_SCREEN_DESCRIPTOR));
-
- Status = EFI_SUCCESS;
- HelpString = NULL;
- HelpHeaderString = NULL;
- HelpBottomString = NULL;
- OptionString = NULL;
- ScreenOperation = UiNoOperation;
- NewLine = TRUE;
- MinRefreshInterval = 0;
- 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;
- MenuRefreshEntry = gMenuRefreshHead;
-
- NextMenuOption = NULL;
- PreviousMenuOption = NULL;
- SavedMenuOption = NULL;
- HotKey = NULL;
- ModalSkipColumn = (LocalScreen.RightColumn - LocalScreen.LeftColumn) / 6;
-
- ZeroMem (&Key, sizeof (EFI_INPUT_KEY));
-
- if ((gClassOfVfr & FORMSET_CLASS_FRONT_PAGE) == FORMSET_CLASS_FRONT_PAGE){
- TopRow = LocalScreen.TopRow + FRONT_PAGE_HEADER_HEIGHT + SCROLL_ARROW_HEIGHT;
- Row = LocalScreen.TopRow + FRONT_PAGE_HEADER_HEIGHT + SCROLL_ARROW_HEIGHT;
- } else {
- TopRow = LocalScreen.TopRow + NONE_FRONT_PAGE_HEADER_HEIGHT + SCROLL_ARROW_HEIGHT;
- Row = LocalScreen.TopRow + NONE_FRONT_PAGE_HEADER_HEIGHT + SCROLL_ARROW_HEIGHT;
- }
-
- if (Selection->Form->ModalForm) {
- Col = LocalScreen.LeftColumn + LEFT_SKIPPED_COLUMNS + ModalSkipColumn;
- } else {
- Col = LocalScreen.LeftColumn + LEFT_SKIPPED_COLUMNS;
- }
-
- BottomRow = LocalScreen.BottomRow - STATUS_BAR_HEIGHT - gFooterHeight - SCROLL_ARROW_HEIGHT - 1;
-
- Selection->TopRow = TopRow;
- Selection->BottomRow = BottomRow;
- Selection->PromptCol = Col;
- Selection->OptionCol = gPromptBlockWidth + 1 + LocalScreen.LeftColumn;
- Selection->Statement = NULL;
-
- TopOfScreen = gMenuOption.ForwardLink;
- Repaint = TRUE;
- MenuOption = NULL;
-
- //
- // Find current Menu
- //
- CurrentMenu = UiFindMenuList (Selection->Handle, &Selection->FormSetGuid, Selection->FormId);
- if (CurrentMenu == NULL) {
- //
- // Current menu not found, add it to the menu tree
- //
- CurrentMenu = UiAddMenuList (Selection->CurrentMenu, Selection->Handle, &Selection->FormSetGuid, Selection->FormId);
- }
- ASSERT (CurrentMenu != NULL);
- Selection->CurrentMenu = CurrentMenu;
-
- if (Selection->QuestionId == 0) {
- //
- // Highlight not specified, fetch it from cached menu
- //
- Selection->QuestionId = CurrentMenu->QuestionId;
- Selection->Sequence = CurrentMenu->Sequence;
- }
-
- //
- // Init option as the current user's selection
- //
- InitializedFlag = TRUE;
- NewPos = gMenuOption.ForwardLink;
-
- gST->ConOut->EnableCursor (gST->ConOut, FALSE);
- UpdateStatusBar (Selection, REFRESH_STATUS_BAR, (UINT8) 0, TRUE);
-
- ControlFlag = CfInitialization;
- Selection->Action = UI_ACTION_NONE;
- while (TRUE) {
- switch (ControlFlag) {
- case CfInitialization:
- if (IsListEmpty (&gMenuOption)) {
- ControlFlag = CfReadKey;
- } else {
- ControlFlag = CfCheckSelection;
- }
- break;
-
- case CfCheckSelection:
- if (Selection->Action != UI_ACTION_NONE) {
- ControlFlag = CfExit;
- } else {
- ControlFlag = CfRepaint;
- }
- break;
-
- case CfRepaint:
- ControlFlag = CfRefreshHighLight;
-
- if (Repaint) {
- //
- // Display menu
- //
- DownArrow = FALSE;
- UpArrow = FALSE;
- Row = TopRow;
-
- Temp = (UINTN) SkipValue;
- Temp2 = (UINTN) SkipValue;
-
- //
- // 1. Clear the screen.
- //
- if (Selection->Form->ModalForm) {
- ClearLines (
- LocalScreen.LeftColumn + ModalSkipColumn,
- LocalScreen.LeftColumn + ModalSkipColumn + gPromptBlockWidth + gOptionBlockWidth,
- TopRow - SCROLL_ARROW_HEIGHT,
- BottomRow + SCROLL_ARROW_HEIGHT,
- PcdGet8 (PcdBrowserFieldTextColor) | FIELD_BACKGROUND
- );
- } else {
- ClearLines (
- LocalScreen.LeftColumn,
- LocalScreen.RightColumn,
- TopRow - SCROLL_ARROW_HEIGHT,
- BottomRow + SCROLL_ARROW_HEIGHT,
- PcdGet8 (PcdBrowserFieldTextColor) | FIELD_BACKGROUND
- );
- }
- UiFreeRefreshList ();
- MinRefreshInterval = 0;
-
- //
- // 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 (Selection->Form->ModalForm) {
- MenuOption->OptCol = gPromptBlockWidth + 1 + LocalScreen.LeftColumn + ModalSkipColumn;
- } else {
- MenuOption->OptCol = gPromptBlockWidth + 1 + LocalScreen.LeftColumn;
- }
-
- Statement = MenuOption->ThisTag;
- if (Statement->InSubtitle) {
- MenuOption->Col += SUBTITLE_INDENT;
- }
-
- if (MenuOption->GrayOut) {
- gST->ConOut->SetAttribute (gST->ConOut, FIELD_TEXT_GRAYED | FIELD_BACKGROUND);
- } else {
- if (Statement->Operand == EFI_IFR_SUBTITLE_OP) {
- gST->ConOut->SetAttribute (gST->ConOut, PcdGet8 (PcdBrowserSubtitleTextColor) | FIELD_BACKGROUND);
- }
- }
-
- Width = GetWidth (Statement, MenuOption->Handle);
- OriginalRow = Row;
- GlyphWidth = 1;
-
- if (Statement->Operand == EFI_IFR_REF_OP && MenuOption->Col >= 2) {
- //
- // Print Arrow for Goto button.
- //
- PrintAt (
- MenuOption->Col - 2,
- Row,
- L"%c",
- 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 (Selection, MenuOption, FALSE, &OptionString);
- if (EFI_ERROR (Status)) {
- //
- // Repaint to clear possible error prompt pop-up
- //
- Repaint = TRUE;
- NewLine = TRUE;
- ControlFlag = CfRepaint;
- break;
- }
-
- if (OptionString != NULL) {
- if (Statement->Operand == EFI_IFR_DATE_OP || Statement->Operand == 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--;
- }
- }
-
- Temp2 = 0;
- Row = OriginalRow;
-
- FreePool (OptionString);
- }
-
- //
- // 2.4 Special process for Test opcode with test two.
- //
- if (!CompareGuid (&Statement->RefreshGuid, &gZeroGuid)) {
- if (gMenuEventGuidRefreshHead == NULL) {
- MenuUpdateEntry = AllocateZeroPool (sizeof (MENU_REFRESH_ENTRY));
- gMenuEventGuidRefreshHead = MenuUpdateEntry;
- } else {
- MenuUpdateEntry = gMenuEventGuidRefreshHead;
- while (MenuUpdateEntry->Next != NULL) {
- MenuUpdateEntry = MenuUpdateEntry->Next;
- }
- MenuUpdateEntry->Next = AllocateZeroPool (sizeof (MENU_REFRESH_ENTRY));
- MenuUpdateEntry = MenuUpdateEntry->Next;
- }
- ASSERT (MenuUpdateEntry != NULL);
- Status = gBS->CreateEventEx (EVT_NOTIFY_SIGNAL, TPL_NOTIFY, RefreshQuestionNotify, MenuUpdateEntry, &Statement->RefreshGuid, &MenuUpdateEntry->Event);
- ASSERT (!EFI_ERROR (Status));
- MenuUpdateEntry->MenuOption = MenuOption;
- MenuUpdateEntry->Selection = Selection;
- MenuUpdateEntry->CurrentColumn = MenuOption->OptCol;
- MenuUpdateEntry->CurrentRow = MenuOption->Row;
- if (MenuOption->GrayOut) {
- MenuUpdateEntry->CurrentAttribute = FIELD_TEXT_GRAYED | FIELD_BACKGROUND;
- } else {
- MenuUpdateEntry->CurrentAttribute = PcdGet8 (PcdBrowserFieldTextColor) | FIELD_BACKGROUND;
- }
- }
-
- //
- // If Question request refresh, register the op-code
- //
- if (Statement->RefreshInterval != 0) {
- //
- // Menu will be refreshed at minimal interval of all Questions
- // which have refresh request
- //
- if (MinRefreshInterval == 0 || Statement->RefreshInterval < MinRefreshInterval) {
- MinRefreshInterval = Statement->RefreshInterval;
- }
-
- if (gMenuRefreshHead == NULL) {
- MenuRefreshEntry = AllocateZeroPool (sizeof (MENU_REFRESH_ENTRY));
- gMenuRefreshHead = MenuRefreshEntry;
- } else {
- MenuRefreshEntry = gMenuRefreshHead;
- while (MenuRefreshEntry->Next != NULL) {
- MenuRefreshEntry = MenuRefreshEntry->Next;
- }
- MenuRefreshEntry->Next = AllocateZeroPool (sizeof (MENU_REFRESH_ENTRY));
- MenuRefreshEntry = MenuRefreshEntry->Next;
- }
- ASSERT (MenuRefreshEntry != NULL);
- MenuRefreshEntry->MenuOption = MenuOption;
- MenuRefreshEntry->Selection = Selection;
- MenuRefreshEntry->CurrentColumn = MenuOption->OptCol;
- MenuRefreshEntry->CurrentRow = MenuOption->Row;
- if (MenuOption->GrayOut) {
- MenuRefreshEntry->CurrentAttribute = FIELD_TEXT_GRAYED | FIELD_BACKGROUND;
- } else {
- MenuRefreshEntry->CurrentAttribute = PcdGet8 (PcdBrowserFieldTextColor) | FIELD_BACKGROUND;
- }
- }
-
- //
- // If this is a text op with secondary text information
- //
- if ((Statement->Operand == EFI_IFR_TEXT_OP) && (Statement->TextTwo != 0)) {
- StringPtr = GetToken (Statement->TextTwo, MenuOption->Handle);
-
- Width = (UINT16) gOptionBlockWidth;
- OriginalRow = Row;
- GlyphWidth = 1;
-
- for (Index = 0; GetLineByWidth (StringPtr, Width, &GlyphWidth, &Index, &OutputString) != 0x0000;) {
- if ((Temp == 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 (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 (StringPtr);
- }
- gST->ConOut->SetAttribute (gST->ConOut, PcdGet8 (PcdBrowserFieldTextColor) | FIELD_BACKGROUND);
-
- //
- // 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, ARROW_TEXT | ARROW_BACKGROUND);
- PrintAt (
- LocalScreen.LeftColumn + gPromptBlockWidth + gOptionBlockWidth + 1,
- TopRow - SCROLL_ARROW_HEIGHT,
- L"%c",
- ARROW_UP
- );
- gST->ConOut->SetAttribute (gST->ConOut, PcdGet8 (PcdBrowserFieldTextColor) | FIELD_BACKGROUND);
- }
-
- if (DownArrow) {
- gST->ConOut->SetAttribute (gST->ConOut, ARROW_TEXT | ARROW_BACKGROUND);
- PrintAt (
- LocalScreen.LeftColumn + gPromptBlockWidth + gOptionBlockWidth + 1,
- BottomRow + SCROLL_ARROW_HEIGHT,
- L"%c",
- ARROW_DOWN
- );
- gST->ConOut->SetAttribute (gST->ConOut, PcdGet8 (PcdBrowserFieldTextColor) | FIELD_BACKGROUND);
- }
-
- 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 (TopOfScreen == &MenuOption->Link) {
- Temp = SkipValue;
- } else {
- Temp = 0;
- }
- if (NewPos == TopOfScreen) {
- Temp2 = SkipValue;
- } else {
- Temp2 = 0;
- }
- if (InitializedFlag) {
- InitializedFlag = FALSE;
- MoveToNextStatement (Selection, FALSE, &NewPos, BottomRow - TopRow);
- }
-
- //
- // Repaint flag is normally reset when finish processing CfUpdateHelpString. Temporarily
- // reset Repaint flag because we may break halfway and skip CfUpdateHelpString processing.
- //
- SavedValue = Repaint;
- Repaint = FALSE;
-
- if (Selection->QuestionId != 0) {
- NewPos = gMenuOption.ForwardLink;
- SavedMenuOption = MENU_OPTION_FROM_LINK (NewPos);
-
- while ((SavedMenuOption->ThisTag->QuestionId != Selection->QuestionId ||
- SavedMenuOption->Sequence != Selection->Sequence) &&
- NewPos->ForwardLink != &gMenuOption) {
- NewPos = NewPos->ForwardLink;
- SavedMenuOption = MENU_OPTION_FROM_LINK (NewPos);
- }
- if (SavedMenuOption->ThisTag->QuestionId == Selection->QuestionId) {
- //
- // Target Question found, find its MenuOption
- //
- Link = TopOfScreen;
-
- for (Index = TopRow; Index <= BottomRow && Link != NewPos;) {
- SavedMenuOption = MENU_OPTION_FROM_LINK (Link);
- Index += SavedMenuOption->Skip;
- if (Link == TopOfScreen) {
- Index -= SkipValue;
- }
- Link = Link->ForwardLink;
- }
- if (NewPos == Link) {
- SavedMenuOption = MENU_OPTION_FROM_LINK (Link);
- }
-
- //
- // Not find the selected menu in current show page.
- // Have two case to enter this if:
- // 1. Not find the menu at current page.
- // 2. Find the menu in current page, but the menu shows at the bottom and not all info shows.
- // For case 2, has an exception: The menu can show more than one pages and now only this menu shows.
- //
- // Base on the selected menu will show at the bottom of the page,
- // select the menu which will show at the top of the page.
- //
- if (Link != NewPos || Index > BottomRow ||
- (Link == NewPos && (SavedMenuOption->Row + SavedMenuOption->Skip - 1 > BottomRow) && (Link != TopOfScreen))) {
- //
- // Find the MenuOption which has the skip value for Date/Time opcode.
- //
- AdjustDateAndTimePosition(FALSE, &NewPos);
- //
- // NewPos is not in the current page, simply scroll page so that NewPos is in the end of the page
- //
- SavedMenuOption = MENU_OPTION_FROM_LINK (NewPos);
- //
- // SavedMenuOption->Row == 0 means the menu not show yet.
- //
- if (SavedMenuOption->Row == 0) {
- UpdateOptionSkipLines (Selection, SavedMenuOption);
- }
-
- //
- // 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 <= BottomRow + 1; ) {
- Link = Link->BackLink;
- SavedMenuOption = MENU_OPTION_FROM_LINK (Link);
- if (SavedMenuOption->Row == 0) {
- UpdateOptionSkipLines (Selection, 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 - BottomRow - 1;
- if (SkipValue > 0 && SkipValue < (INTN) SavedMenuOption->Skip) {
- TopOfScreen = Link;
- } else {
- SkipValue = 0;
- TopOfScreen = Link->ForwardLink;
- }
- }
-
- Repaint = TRUE;
- NewLine = TRUE;
- ControlFlag = CfRepaint;
- break;
- }
- } else {
- //
- // Target Question not found, highlight the default menu option
- //
- NewPos = TopOfScreen;
- }
-
- Selection->QuestionId = 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 (Selection, MenuOption, FALSE, &OptionString);
- gST->ConOut->SetAttribute (gST->ConOut, PcdGet8 (PcdBrowserFieldTextColor) | FIELD_BACKGROUND);
- if (OptionString != NULL) {
- if ((MenuOption->ThisTag->Operand == EFI_IFR_DATE_OP) ||
- (MenuOption->ThisTag->Operand == 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, FIELD_TEXT_GRAYED | FIELD_BACKGROUND);
- } else if (MenuOption->ThisTag->Operand == EFI_IFR_SUBTITLE_OP) {
- gST->ConOut->SetAttribute (gST->ConOut, PcdGet8 (PcdBrowserSubtitleTextColor) | FIELD_BACKGROUND);
- }
-
- OriginalRow = MenuOption->Row;
- Width = GetWidth (MenuOption->ThisTag, MenuOption->Handle);
- 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, PcdGet8 (PcdBrowserFieldTextColor) | FIELD_BACKGROUND);
- }
- }
- }
-
- //
- // This is the current selected statement
- //
- MenuOption = MENU_OPTION_FROM_LINK (NewPos);
- Statement = MenuOption->ThisTag;
- Selection->Statement = Statement;
- if (!IsSelectable (MenuOption)) {
- Repaint = SavedValue;
- UpdateKeyHelp (Selection, MenuOption, FALSE);
- break;
- }
-
- //
- // Record highlight for current menu
- //
- CurrentMenu->QuestionId = Statement->QuestionId;
- CurrentMenu->Sequence = MenuOption->Sequence;
-
- //
- // Set reverse attribute
- //
- gST->ConOut->SetAttribute (gST->ConOut, PcdGet8 (PcdBrowserFieldTextHighlightColor) | PcdGet8 (PcdBrowserFieldBackgroundHighlightColor));
- gST->ConOut->SetCursorPosition (gST->ConOut, MenuOption->Col, MenuOption->Row);
-
- //
- // Assuming that we have a refresh linked-list created, lets annotate the
- // appropriate entry that we are highlighting with its new attribute. Just prior to this
- // lets reset all of the entries' attribute so we do not get multiple highlights in he refresh
- //
- if (gMenuRefreshHead != NULL) {
- for (MenuRefreshEntry = gMenuRefreshHead; MenuRefreshEntry != NULL; MenuRefreshEntry = MenuRefreshEntry->Next) {
- if (MenuRefreshEntry->MenuOption->GrayOut) {
- MenuRefreshEntry->CurrentAttribute = FIELD_TEXT_GRAYED | FIELD_BACKGROUND;
- } else {
- MenuRefreshEntry->CurrentAttribute = PcdGet8 (PcdBrowserFieldTextColor) | FIELD_BACKGROUND;
- }
- if (MenuRefreshEntry->MenuOption == MenuOption) {
- MenuRefreshEntry->CurrentAttribute = PcdGet8 (PcdBrowserFieldTextHighlightColor) | PcdGet8 (PcdBrowserFieldBackgroundHighlightColor);
- }
- }
- }
-
- ProcessOptions (Selection, MenuOption, FALSE, &OptionString);
- if (OptionString != NULL) {
- if (Statement->Operand == EFI_IFR_DATE_OP || Statement->Operand == 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, MenuOption->Handle);
- 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;
-
- }
- }
-
- UpdateKeyHelp (Selection, MenuOption, FALSE);
-
- //
- // Clear reverse attribute
- //
- gST->ConOut->SetAttribute (gST->ConOut, PcdGet8 (PcdBrowserFieldTextColor) | FIELD_BACKGROUND);
- }
- //
- // Repaint flag will be used when process CfUpdateHelpString, so restore its value
- // if we didn't break halfway when process CfRefreshHighLight.
- //
- Repaint = SavedValue;
- break;
-
- case CfUpdateHelpString:
- ControlFlag = CfPrepareToReadKey;
- if (Selection->Form->ModalForm) {
- break;
- }
-
- if (Repaint || NewLine) {
- //
- // Don't print anything if it is a NULL help token
- //
- ASSERT(MenuOption != NULL);
- if (MenuOption->ThisTag->Help == 0 || !IsSelectable (MenuOption)) {
- StringPtr = L"\0";
- } else {
- StringPtr = GetToken (MenuOption->ThisTag->Help, MenuOption->Handle);
- }
-
- RowCount = BottomRow - TopRow;
- HelpPageIndex = 0;
- //
- // 1.Calculate how many line the help string need to print.
- //
- if (HelpString != NULL) {
- FreePool (HelpString);
- }
- HelpLine = ProcessHelpString (StringPtr, &HelpString, &EachLineWidth, RowCount);
- if (HelpLine > RowCount) {
- MultiHelpPage = TRUE;
- StringPtr = GetToken (STRING_TOKEN(ADJUST_HELP_PAGE_UP), gHiiHandle);
- if (HelpHeaderString != NULL) {
- FreePool (HelpHeaderString);
- }
- HelpHeaderLine = ProcessHelpString (StringPtr, &HelpHeaderString, &HeaderLineWidth, RowCount);
- StringPtr = GetToken (STRING_TOKEN(ADJUST_HELP_PAGE_DOWN), gHiiHandle);
- if (HelpBottomString != NULL) {
- FreePool (HelpBottomString);
- }
- HelpBottomLine = ProcessHelpString (StringPtr, &HelpBottomString, &BottomLineWidth, RowCount);
- //
- // 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;
- }
- }
-
- //
- // Clean the help field first.
- //
- ClearLines (
- LocalScreen.RightColumn - gHelpBlockWidth,
- LocalScreen.RightColumn,
- TopRow,
- BottomRow,
- PcdGet8 (PcdBrowserFieldTextColor) | FIELD_BACKGROUND
- );
-
- //
- // 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, INFO_TEXT | FIELD_BACKGROUND);
- for (Index = 0; Index < HelpHeaderLine; Index++) {
- ASSERT (HelpHeaderLine == 1);
- ASSERT (GetStringWidth (HelpHeaderString) / 2 < (UINTN) (gHelpBlockWidth - 1));
- PrintStringAt (
- LocalScreen.RightColumn - GetStringWidth (HelpHeaderString) / 2 - 1,
- Index + TopRow,
- &HelpHeaderString[Index * HeaderLineWidth]
- );
- }
- }
-
- gST->ConOut->SetAttribute (gST->ConOut, HELP_TEXT | FIELD_BACKGROUND);
- //
- // Print the help string info.
- //
- if (!MultiHelpPage) {
- for (Index = 0; Index < HelpLine; Index++) {
- PrintStringAt (
- LocalScreen.RightColumn - gHelpBlockWidth,
- Index + TopRow,
- &HelpString[Index * EachLineWidth]
- );
- }
- gST->ConOut->SetCursorPosition(gST->ConOut, LocalScreen.RightColumn-1, BottomRow);
- } else {
- if (HelpPageIndex == 0) {
- for (Index = 0; Index < RowCount - HelpBottomLine; Index++) {
- PrintStringAt (
- LocalScreen.RightColumn - gHelpBlockWidth,
- Index + TopRow,
- &HelpString[Index * EachLineWidth]
- );
- }
- } else {
- for (Index = 0; (Index < RowCount - HelpBottomLine - HelpHeaderLine) &&
- (Index + HelpPageIndex * (RowCount - 2) + 1 < HelpLine); Index++) {
- PrintStringAt (
- LocalScreen.RightColumn - gHelpBlockWidth,
- Index + TopRow + HelpHeaderLine,
- &HelpString[(Index + HelpPageIndex * (RowCount - 2) + 1)* EachLineWidth]
- );
- }
- if (HelpPageIndex == HelpPageCount - 1) {
- gST->ConOut->SetCursorPosition(gST->ConOut, LocalScreen.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, INFO_TEXT | FIELD_BACKGROUND);
- for (Index = 0; Index < HelpBottomLine; Index++) {
- ASSERT (HelpBottomLine == 1);
- ASSERT (GetStringWidth (HelpBottomString) / 2 < (UINTN) (gHelpBlockWidth - 1));
- PrintStringAt (
- LocalScreen.RightColumn - GetStringWidth (HelpBottomString) / 2 - 1,
- Index + BottomRow - HelpBottomLine,
- &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)) {
- break;
- }
-
- //
- // If we encounter error, continue to read another key in.
- //
- if (Status != EFI_NOT_READY) {
- continue;
- }
-
- Status = UiWaitForSingleEvent (gST->ConIn->WaitForKey, 0, MinRefreshInterval);
- ASSERT_EFI_ERROR (Status);
-
- if (Selection->Action == UI_ACTION_REFRESH_FORMSET) {
- //
- // IFR is updated in Callback of refresh opcode, re-parse it
- //
- ControlFlag = CfCheckSelection;
- Selection->Statement = NULL;
- break;
- }
- }
-
- if (ControlFlag == CfCheckSelection) {
- break;
- }
-
- switch (Key.UnicodeChar) {
- case CHAR_CARRIAGE_RETURN:
- if(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->Operand == EFI_IFR_DATE_OP)
- || (Statement->Operand == EFI_IFR_TIME_OP)
- || ((Statement->Operand == EFI_IFR_NUMERIC_OP) && (Statement->Step != 0))
- ){
- if (Key.UnicodeChar == '+') {
- gDirection = SCAN_RIGHT;
- } else {
- gDirection = SCAN_LEFT;
- }
- Status = ProcessOptions (Selection, MenuOption, TRUE, &OptionString);
- if (EFI_ERROR (Status)) {
- //
- // Repaint to clear possible error prompt pop-up
- //
- Repaint = TRUE;
- NewLine = TRUE;
- } else {
- Selection->Action = UI_ACTION_REFRESH_FORM;
- }
- if (OptionString != NULL) {
- FreePool (OptionString);
- }
- }
- break;
-
- case '^':
- ScreenOperation = UiUp;
- break;
-
- case 'V':
- case 'v':
- ScreenOperation = UiDown;
- break;
-
- case ' ':
- if ((gClassOfVfr & FORMSET_CLASS_FRONT_PAGE) != FORMSET_CLASS_FRONT_PAGE) {
- //
- // 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;
- }
-
- ASSERT(MenuOption != NULL);
- if (MenuOption->ThisTag->Operand == 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 (Selection->Form->ModalForm && (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;
- if ((gBrowserSettingScope == SystemLevel) ||
- (Selection->FormEditable && gFunctionKeySetting != NONE_FUNCTION_KEY_SETTING)) {
- 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 = CfCheckSelection;
-
- ASSERT(MenuOption != NULL);
- Statement = MenuOption->ThisTag;
- if (Statement->Operand == EFI_IFR_TEXT_OP) {
- break;
- }
-
- //
- // Keep highlight on current MenuOption
- //
- Selection->QuestionId = Statement->QuestionId;
-
- switch (Statement->Operand) {
- case EFI_IFR_REF_OP:
- ProcessGotoOpCode(Statement, Selection, &Repaint, &NewLine);
- break;
-
- case EFI_IFR_ACTION_OP:
- //
- // Process the Config string <ConfigResp>
- //
- Status = ProcessQuestionConfig (Selection, Statement);
-
- if (EFI_ERROR (Status)) {
- break;
- }
-
- //
- // The action button may change some Question value, so refresh the form
- //
- Selection->Action = UI_ACTION_REFRESH_FORM;
- break;
-
- case EFI_IFR_RESET_BUTTON_OP:
- //
- // Reset Question to default value specified by DefaultId
- //
- ControlFlag = CfUiDefault;
- DefaultId = Statement->DefaultId;
- break;
-
- default:
- //
- // Editable Questions: oneof, ordered list, checkbox, numeric, string, password
- //
- UpdateKeyHelp (Selection, MenuOption, TRUE);
- Status = ProcessOptions (Selection, MenuOption, TRUE, &OptionString);
-
- if (EFI_ERROR (Status)) {
- Repaint = TRUE;
- NewLine = TRUE;
- UpdateKeyHelp (Selection, MenuOption, FALSE);
- } else {
- Selection->Action = UI_ACTION_REFRESH_FORM;
- }
-
- if (OptionString != NULL) {
- FreePool (OptionString);
- }
- break;
- }
- break;
-
- case CfUiReset:
- //
- // We come here when someone press ESC
- //
- ControlFlag = CfCheckSelection;
- FindNextMenu (Selection, &Repaint, &NewLine);
- break;
-
- case CfUiLeft:
- ControlFlag = CfCheckSelection;
- ASSERT(MenuOption != NULL);
- if ((MenuOption->ThisTag->Operand == EFI_IFR_DATE_OP) || (MenuOption->ThisTag->Operand == 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 = CfCheckSelection;
- ASSERT(MenuOption != NULL);
- if ((MenuOption->ThisTag->Operand == EFI_IFR_DATE_OP) || (MenuOption->ThisTag->Operand == 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 = CfCheckSelection;
-
- 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 (Selection, PreviousMenuOption);
- }
- DistanceValue = PreviousMenuOption->Skip;
- Difference = 0;
- if (MenuOption->Row >= DistanceValue + TopRow) {
- Difference = MoveToNextStatement (Selection, 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 (Selection, INPUT_ERROR, MenuOption->ThisTag->QuestionFlags, 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 = CfCheckSelection;
-
- ASSERT(NewPos != NULL);
- //
- // Already at the first menu option, so do nothing.
- //
- if (NewPos->BackLink == &gMenuOption) {
- NewLine = FALSE;
- Repaint = FALSE;
- 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 (Selection, 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 (Selection, TRUE, &NewPos, BottomRow - TopRow);
- Repaint = FALSE;
- } else if (TopOfScreen != Link) {
- TopOfScreen = Link;
- NewPos = Link;
- MoveToNextStatement (Selection, FALSE, &NewPos, BottomRow - TopRow);
- } else {
- //
- // Finally we know that NewPos is the last MenuOption can be focused.
- //
- Repaint = FALSE;
- NewPos = Link;
- MoveToNextStatement (Selection, FALSE, &NewPos, BottomRow - TopRow);
- }
- } else {
- if (Index >= TopRow) {
- //
- // At here, only case "Index < PreviousMenuOption->Skip" can reach here.
- //
- SkipValue = PreviousMenuOption->Skip - (Index - TopRow);
- } else {
- SkipValue = PreviousMenuOption->Skip - (TopRow - Index);
- Link = Link->ForwardLink;
- }
-
- //
- // Move to the option in Next page.
- //
- if (TopOfScreen == &gMenuOption) {
- NewPos = gMenuOption.BackLink;
- MoveToNextStatement (Selection, TRUE, &NewPos, BottomRow - TopRow);
- } else {
- NewPos = Link;
- MoveToNextStatement (Selection, 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 = CfCheckSelection;
-
- 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 (Selection, TRUE, &Link, Index - TopRow);
- SkipValue = 0;
- } 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 (Selection, 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 = CfCheckSelection;
- //
- // 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 (Selection, 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 (Selection, 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 (Selection, NextMenuOption);
- }
- DistanceValue = Difference + NextMenuOption->Skip;
-
- Temp = MenuOption->Row + MenuOption->Skip + DistanceValue - 1;
- if ((MenuOption->Row + MenuOption->Skip == BottomRow + 1) &&
- (NextMenuOption->ThisTag->Operand == EFI_IFR_DATE_OP ||
- NextMenuOption->ThisTag->Operand == 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 (Selection, INPUT_ERROR, MenuOption->ThisTag->QuestionFlags, 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 (Selection, 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 CfUiHotKey:
- ControlFlag = CfCheckSelection;
-
- Status = EFI_SUCCESS;
- //
- // Discard changes. After it, no NV flag is showed.
- //
- if ((HotKey->Action & BROWSER_ACTION_DISCARD) == BROWSER_ACTION_DISCARD) {
- Status = DiscardForm (Selection->FormSet, Selection->Form, gBrowserSettingScope);
- if (!EFI_ERROR (Status)) {
- Selection->Action = UI_ACTION_REFRESH_FORM;
- Selection->Statement = NULL;
- gResetRequired = FALSE;
- } else {
- do {
- CreateDialog (4, TRUE, 0, NULL, &Key, HotKey->HelpString, gDiscardFailed, gPressEnter, gEmptyString);
- } while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);
- //
- // Still show current page.
- //
- Selection->Action = UI_ACTION_NONE;
- Repaint = TRUE;
- NewLine = TRUE;
- break;
- }
- }
-
- //
- // Reterieve default setting. After it. NV flag will be showed.
- //
- if ((HotKey->Action & BROWSER_ACTION_DEFAULT) == BROWSER_ACTION_DEFAULT) {
- Status = ExtractDefault (Selection->FormSet, Selection->Form, HotKey->DefaultId, gBrowserSettingScope, GetDefaultForAll, NULL, FALSE);
- if (!EFI_ERROR (Status)) {
- Selection->Action = UI_ACTION_REFRESH_FORM;
- Selection->Statement = NULL;
- gResetRequired = TRUE;
- } else {
- do {
- CreateDialog (4, TRUE, 0, NULL, &Key, HotKey->HelpString, gDefaultFailed, gPressEnter, gEmptyString);
- } while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);
- //
- // Still show current page.
- //
- Selection->Action = UI_ACTION_NONE;
- Repaint = TRUE;
- NewLine = TRUE;
- break;
- }
- }
-
- //
- // Save changes. After it, no NV flag is showed.
- //
- if ((HotKey->Action & BROWSER_ACTION_SUBMIT) == BROWSER_ACTION_SUBMIT) {
- Status = SubmitForm (Selection->FormSet, Selection->Form, gBrowserSettingScope);
- if (!EFI_ERROR (Status)) {
- ASSERT(MenuOption != NULL);
- UpdateStatusBar (Selection, INPUT_ERROR, MenuOption->ThisTag->QuestionFlags, FALSE);
- UpdateStatusBar (Selection, NV_UPDATE_REQUIRED, MenuOption->ThisTag->QuestionFlags, FALSE);
- } else {
- do {
- CreateDialog (4, TRUE, 0, NULL, &Key, HotKey->HelpString, gSaveFailed, gPressEnter, gEmptyString);
- } while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);
- //
- // Still show current page.
- //
- Selection->Action = UI_ACTION_NONE;
- Repaint = TRUE;
- NewLine = TRUE;
- break;
- }
- }
-
- //
- // Set Reset required Flag
- //
- if ((HotKey->Action & BROWSER_ACTION_RESET) == BROWSER_ACTION_RESET) {
- gResetRequired = TRUE;
- }
-
- //
- // Exit Action
- //
- if ((HotKey->Action & BROWSER_ACTION_EXIT) == BROWSER_ACTION_EXIT) {
- //
- // Form Exit without saving, Similar to ESC Key.
- // FormSet Exit without saving, Exit SendForm.
- // System Exit without saving, CallExitHandler and Exit SendForm.
- //
- DiscardForm (Selection->FormSet, Selection->Form, gBrowserSettingScope);
- if (gBrowserSettingScope == FormLevel) {
- ControlFlag = CfUiReset;
- } else if (gBrowserSettingScope == FormSetLevel) {
- Selection->Action = UI_ACTION_EXIT;
- } else if (gBrowserSettingScope == SystemLevel) {
- if (ExitHandlerFunction != NULL) {
- ExitHandlerFunction ();
- }
- Selection->Action = UI_ACTION_EXIT;
- }
- Selection->Statement = NULL;
- }
- break;
-
- case CfUiDefault:
- ControlFlag = CfCheckSelection;
- //
- // Reset to default value for all forms in the whole system.
- //
- Status = ExtractDefault (Selection->FormSet, NULL, DefaultId, FormSetLevel, GetDefaultForAll, NULL, FALSE);
-
- if (!EFI_ERROR (Status)) {
- Selection->Action = UI_ACTION_REFRESH_FORM;
- Selection->Statement = NULL;
- gResetRequired = TRUE;
- }
- break;
-
- case CfUiNoOperation:
- ControlFlag = CfCheckSelection;
- break;
-
- case CfExit:
- UiFreeRefreshList ();
-
- gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK));
- gST->ConOut->SetCursorPosition (gST->ConOut, 0, Row + 4);
- gST->ConOut->EnableCursor (gST->ConOut, TRUE);
- gST->ConOut->OutputString (gST->ConOut, L"\n");
- if (HelpString != NULL) {
- FreePool (HelpString);
- }
- if (HelpHeaderString != NULL) {
- FreePool (HelpHeaderString);
- }
- if (HelpBottomString != NULL) {
- FreePool (HelpBottomString);
- }
-
- return EFI_SUCCESS;
-
- default:
- break;
- }
- }
-}
|