MdeModulePkg/DisplayEngine: Add implementation of HiiPopup protocol

Add the implementation of HiiPopup protocol in DisplayEngineDxe,
since DisplayEngineDxe is responsible for drawing tasks.

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

5 files changed, 889 insertions, 3 deletions

diff --git a/MdeModulePkg/Universal/DisplayEngineDxe/DisplayEngineDxe.inf b/MdeModulePkg/Universal/DisplayEngineDxe/DisplayEngineDxe.inf
index bf5e8e5..fa7b2ca 100644
--- a/MdeModulePkg/Universal/DisplayEngineDxe/DisplayEngineDxe.inf
+++ b/MdeModulePkg/Universal/DisplayEngineDxe/DisplayEngineDxe.inf
@@ -1,7 +1,7 @@
 ## @file

 # The DXE driver produces FORM DISPLAY ENGIEN protocol.

 #

-# Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>

+# Copyright (c) 2007 - 2017, 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

@@ -35,6 +35,7 @@
   FormDisplay.h

   ProcessOptions.c

   InputHandler.c

+  Popup.c

   

 [Packages]

   MdePkg/MdePkg.dec

@@ -54,6 +55,7 @@
 [Protocols]

   gEdkiiFormDisplayEngineProtocolGuid   ## PRODUCES

   gEdkiiFormBrowserEx2ProtocolGuid      ## CONSUMES

+  gEfiHiiPopupProtocolGuid              ## PRODUCES

 

 [Depex]

   gEfiHiiDatabaseProtocolGuid AND gEfiHiiConfigRoutingProtocolGuid AND gEdkiiFormBrowserEx2ProtocolGuid

diff --git a/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c b/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c
index bbb2675..d2867d2 100644
--- a/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c
+++ b/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.c
@@ -151,6 +151,15 @@ CHAR16            *gConfirmExitMsg2nd;
 CHAR16            *gConfirmOpt;

 CHAR16            *gConfirmOptYes;

 CHAR16            *gConfirmOptNo;

+CHAR16            *gConfirmOptOk;

+CHAR16            *gConfirmOptCancel;

+CHAR16            *gYesOption;

+CHAR16            *gNoOption;

+CHAR16            *gOkOption;

+CHAR16            *gCancelOption;

+CHAR16            *gErrorPopup;

+CHAR16            *gWarningPopup;

+CHAR16            *gInfoPopup;

 CHAR16            *gConfirmMsgConnect;

 CHAR16            *gConfirmMsgEnd;

 CHAR16            *gPasswordUnsupported;

@@ -167,6 +176,10 @@ FORM_DISPLAY_DRIVER_PRIVATE_DATA  mPrivateData = {
     FormDisplay,

     DriverClearDisplayPage,

     ConfirmDataChange

+  },

+  {

+    EFI_HII_POPUP_PROTOCOL_REVISION,

+    CreatePopup

   }

 };

 

@@ -247,6 +260,15 @@ InitializeDisplayStrings (
   gConfirmOpt           = GetToken (STRING_TOKEN (CONFIRM_OPTION), gHiiHandle);

   gConfirmOptYes        = GetToken (STRING_TOKEN (CONFIRM_OPTION_YES), gHiiHandle);

   gConfirmOptNo         = GetToken (STRING_TOKEN (CONFIRM_OPTION_NO), gHiiHandle);

+  gConfirmOptOk         = GetToken (STRING_TOKEN (CONFIRM_OPTION_OK), gHiiHandle);

+  gConfirmOptCancel     = GetToken (STRING_TOKEN (CONFIRM_OPTION_CANCEL), gHiiHandle);

+  gYesOption            = GetToken (STRING_TOKEN (YES_SELECTABLE_OPTION), gHiiHandle);

+  gNoOption             = GetToken (STRING_TOKEN (NO_SELECTABLE_OPTION), gHiiHandle);

+  gOkOption             = GetToken (STRING_TOKEN (OK_SELECTABLE_OPTION), gHiiHandle);

+  gCancelOption         = GetToken (STRING_TOKEN (CANCEL_SELECTABLE_OPTION), gHiiHandle);

+  gErrorPopup           = GetToken (STRING_TOKEN (ERROR_POPUP_STRING), gHiiHandle);

+  gWarningPopup         = GetToken (STRING_TOKEN (WARNING_POPUP_STRING), gHiiHandle);

+  gInfoPopup            = GetToken (STRING_TOKEN (INFO_POPUP_STRING), gHiiHandle);

   gConfirmMsgConnect    = GetToken (STRING_TOKEN (CONFIRM_OPTION_CONNECT), gHiiHandle);

   gConfirmMsgEnd        = GetToken (STRING_TOKEN (CONFIRM_OPTION_END), gHiiHandle);

   gPasswordUnsupported  = GetToken (STRING_TOKEN (PASSWORD_NOT_SUPPORTED ), gHiiHandle);

@@ -301,6 +323,15 @@ FreeDisplayStrings (
   FreePool (gConfirmOpt);

   FreePool (gConfirmOptYes);

   FreePool (gConfirmOptNo);

+  FreePool (gConfirmOptOk);

+  FreePool (gConfirmOptCancel);

+  FreePool (gYesOption);

+  FreePool (gNoOption);

+  FreePool (gOkOption);

+  FreePool (gCancelOption);

+  FreePool (gErrorPopup);

+  FreePool (gWarningPopup);

+  FreePool (gInfoPopup);

   FreePool (gConfirmMsgConnect);

   FreePool (gConfirmMsgEnd);

   FreePool (gPasswordUnsupported);

@@ -4161,6 +4192,17 @@ InitializeDisplayEngine (
                   );

   ASSERT_EFI_ERROR (Status);

 

+  //

+  // Install HII Popup Protocol.

+  //

+  Status = gBS->InstallProtocolInterface (

+                 &mPrivateData.Handle,

+                 &gEfiHiiPopupProtocolGuid,

+                 EFI_NATIVE_INTERFACE,

+                 &mPrivateData.HiiPopup

+                );

+  ASSERT_EFI_ERROR (Status);

+

   InitializeDisplayStrings();

   

   ZeroMem (&gHighligthMenuInfo, sizeof (gHighligthMenuInfo));

diff --git a/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.h b/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.h
index 45532ab..7e2a1aa 100644
--- a/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.h
+++ b/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplay.h
@@ -1,7 +1,7 @@
 /** @file

   FormDiplay protocol to show Form

 

-Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved.<BR>

+Copyright (c) 2013 - 2017, 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 that accompanies this distribution.  

 The full text of the license may be found at

@@ -28,6 +28,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include <Protocol/FormBrowserEx2.h>

 #include <Protocol/SimpleTextIn.h>

 #include <Protocol/DisplayProtocol.h>

+#include <Protocol/HiiPopup.h>

 

 #include <Guid/MdeModuleHii.h>

 

@@ -41,6 +42,17 @@ extern FORM_DISPLAY_ENGINE_FORM      *gFormData;
 extern EFI_HII_HANDLE                gHiiHandle;

 extern UINT16                        gDirection;

 extern LIST_ENTRY                    gMenuOption;

+extern CHAR16                        *gConfirmOptYes;

+extern CHAR16                        *gConfirmOptNo;

+extern CHAR16                        *gConfirmOptOk;

+extern CHAR16                        *gConfirmOptCancel;

+extern CHAR16                        *gYesOption;

+extern CHAR16                        *gNoOption;

+extern CHAR16                        *gOkOption;

+extern CHAR16                        *gCancelOption;

+extern CHAR16                        *gErrorPopup;

+extern CHAR16                        *gWarningPopup;

+extern CHAR16                        *gInfoPopup;

 

 //

 // Browser Global Strings

@@ -139,6 +151,7 @@ typedef struct {
   // Produced protocol

   //

   EDKII_FORM_DISPLAY_ENGINE_PROTOCOL FromDisplayProt;

+  EFI_HII_POPUP_PROTOCOL             HiiPopup;

 } FORM_DISPLAY_DRIVER_PRIVATE_DATA;

 

 

@@ -272,6 +285,60 @@ typedef struct {
 

 #define MENU_OPTION_FROM_LINK(a)  CR (a, UI_MENU_OPTION, Link, UI_MENU_OPTION_SIGNATURE)

 

+#define USER_SELECTABLE_OPTION_OK_WIDTH           StrLen (gOkOption)

+#define USER_SELECTABLE_OPTION_OK_CAL_WIDTH       (StrLen (gOkOption) + StrLen (gCancelOption))

+#define USER_SELECTABLE_OPTION_YES_NO_WIDTH       (StrLen (gYesOption) + StrLen (gNoOption))

+#define USER_SELECTABLE_OPTION_YES_NO_CAL_WIDTH   (StrLen (gYesOption) + StrLen (gNoOption) + StrLen (gCancelOption))

+

+#define USER_SELECTABLE_OPTION_SKIP_WIDTH  2

+

+//

+// +-------------------------------------------+ // POPUP_BORDER                        }

+// |            ERROR/WARNING/INFO             | // POPUP_STYLE_STRING_HEIGHT           } POPUP_HEADER_HEIGHT

+// |-------------------------------------------| // POPUP_EMPTY_LINE_HEIGHT             }

+// |             popup messages                |

+// |                                           | // POPUP_EMPTY_LINE_HEIGHT             }

+// |         user selectable options           | // POPUP_USER_SELECTABLE_OPTION_HEIGHT } POPUP_FOOTER_HEIGHT

+// +-------------------------------------------+ // POPUP_BORDER                        }

+//

+#define POPUP_BORDER  1

+#define POPUP_EMPTY_LINE_HEIGHT  1

+#define POPUP_STYLE_STRING_HEIGHT  1

+#define POPUP_USER_SELECTABLE_OPTION_HEIGHT  1

+

+#define POPUP_HEADER_HEIGHT  (POPUP_BORDER + POPUP_STYLE_STRING_HEIGHT + POPUP_EMPTY_LINE_HEIGHT)

+#define POPUP_FOOTER_HEIGHT  (POPUP_EMPTY_LINE_HEIGHT + POPUP_USER_SELECTABLE_OPTION_HEIGHT + POPUP_BORDER)

+

+#define USER_SELECTABLE_OPTION_SIGNATURE  SIGNATURE_32 ('u', 's', 's', 'o')

+

+typedef struct {

+  UINTN                   Signature;

+  LIST_ENTRY              Link;

+  EFI_HII_POPUP_SELECTION OptionType;

+  CHAR16                  *OptionString;

+  //

+  // Display item sequence for user select options

+  //  Ok:        Ok

+  //  Sequence:  0

+  //

+  //  Ok/Cancel:   Ok : Cancel

+  //  Sequence:    0      1

+  //

+  //  Yes/No:      Yes : No

+  //  Sequence:     0    1

+  //

+  //  Yes/No/Cancel: Yes : No: Cancel

+  //  Sequence:       0    1    2

+  //

+  UINTN                   Sequence;

+  UINTN                   OptionRow;

+  UINTN                   OptionCol;

+  UINTN                   MaxSequence;

+  UINTN                   MinSequence;

+} USER_SELECTABLE_OPTION;

+

+#define SELECTABLE_OPTION_FROM_LINK(a)  CR (a, USER_SELECTABLE_OPTION, Link, USER_SELECTABLE_OPTION_SIGNATURE)

+

 /**

   Print Question Value according to it's storage width and display attributes.

 

@@ -650,4 +717,31 @@ UpdateHighlightMenuInfo (
   IN  UINTN                           SkipValue

   );

 

+/**

+  Displays a popup window.

+

+  @param  This           A pointer to the EFI_HII_POPUP_PROTOCOL instance.

+  @param  PopupStyle     Popup style to use.

+  @param  PopupType      Type of the popup to display.

+  @param  HiiHandle      HII handle of the string pack containing Message

+  @param  Message        A message to display in the popup box.

+  @param  UserSelection  User selection.

+

+  @retval EFI_SUCCESS            The popup box was successfully displayed.

+  @retval EFI_INVALID_PARAMETER  HiiHandle and Message do not define a valid HII string.

+  @retval EFI_INVALID_PARAMETER  PopupType is not one of the values defined by this specification.

+  @retval EFI_OUT_OF_RESOURCES   There are not enough resources available to display the popup box.

+

+**/

+EFI_STATUS

+EFIAPI

+CreatePopup (

+  IN  EFI_HII_POPUP_PROTOCOL  *This,

+  IN  EFI_HII_POPUP_STYLE     PopupStyle,

+  IN  EFI_HII_POPUP_TYPE      PopupType,

+  IN  EFI_HII_HANDLE          HiiHandle,

+  IN  EFI_STRING_ID           Message,

+  OUT EFI_HII_POPUP_SELECTION *UserSelection OPTIONAL

+  );

+

 #endif

diff --git a/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplayStr.uni b/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplayStr.uni
index bd9c8b4..5020cfb 100644
--- a/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplayStr.uni
+++ b/MdeModulePkg/Universal/DisplayEngineDxe/FormDisplayStr.uni
@@ -1,6 +1,6 @@
 // *++

 //

-// Copyright (c) 2004 - 2016, Intel Corporation. All rights reserved.<BR>

+// Copyright (c) 2004 - 2017, 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

@@ -103,6 +103,10 @@
                                        #language fr-FR  "Y (y)"

 #string CONFIRM_OPTION_NO              #language en-US  "N (n)"

                                        #language fr-FR  "N (n)"

+#string CONFIRM_OPTION_OK              #language en-US  "O (o)"

+                                       #language fr-FR  "O (o)"

+#string CONFIRM_OPTION_CANCEL          #language en-US  "C (c)"

+                                       #language fr-FR  "C (c)"

 #string CONFIRM_OPTION_CONNECT         #language en-US  " and "

                                        #language fr-FR  " and "

 #string CONFIRM_OPTION_END             #language en-US  "?"

@@ -119,4 +123,18 @@
                                        #language fr-FR  " Get data/time fail, display ??."

 #string PASSWORD_NOT_SUPPORTED         #language en-US  "Unsupported! Because no interactieve flag or no ConfigAccess protocol!"

                                        #language fr-FR  "Unsupported! Because no interactieve flag or no ConfigAccess protocol!"

+#string OK_SELECTABLE_OPTION           #language en-US  "[ Ok ]"

+                                       #language fr-FR  "[ Ok ]"

+#string CANCEL_SELECTABLE_OPTION       #language en-US  "[Cancel]"

+                                       #language fr-FR  "[Cancel]"

+#string YES_SELECTABLE_OPTION          #language en-US  "[ Yes ]"

+                                       #language fr-FR  "[ Yes ]"

+#string NO_SELECTABLE_OPTION           #language en-US  "[ No ]"

+                                       #language fr-FR  "[ No ]"

+#string ERROR_POPUP_STRING             #language en-US  "ERROR"

+                                       #language fr-FR  "ERROR"

+#string WARNING_POPUP_STRING           #language en-US  "WARNING"

+                                       #language fr-FR  "WARNING"

+#string INFO_POPUP_STRING              #language en-US  "INFO"

+                                       #language fr-FR  "INFO"

 

diff --git a/MdeModulePkg/Universal/DisplayEngineDxe/Popup.c b/MdeModulePkg/Universal/DisplayEngineDxe/Popup.c
new file mode 100644
index 0000000..7c76f69
--- /dev/null
+++ b/MdeModulePkg/Universal/DisplayEngineDxe/Popup.c
@@ -0,0 +1,730 @@
+/** @file

+Implementation for Hii Popup Protocol.

+

+Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>

+This program and the accompanying materials

+are licensed and made available under the terms and conditions of the BSD License

+which accompanies this distribution.  The full text of the license may be found at

+http://opensource.org/licenses/bsd-license.php

+

+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,

+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

+

+**/

+

+#include "FormDisplay.h"

+

+EFI_SCREEN_DESCRIPTOR  gPopupDimensions;

+LIST_ENTRY             gUserSelectableOptions;

+EFI_STRING             gMessageString;

+UINTN                  gMesStrLineNum;

+UINTN                  gMaxRowWidth;

+

+/**

+  Free the user selectable option structure data.

+

+  @param  OptionList  Point to the selectable option list which need to be freed.

+

+**/

+VOID

+FreeSelectableOptions(

+  LIST_ENTRY           *OptionList

+  )

+{

+  LIST_ENTRY              *Link;

+  USER_SELECTABLE_OPTION  *SelectableOption;

+

+  while (!IsListEmpty (OptionList)) {

+    Link = GetFirstNode (OptionList);

+    SelectableOption = SELECTABLE_OPTION_FROM_LINK (Link);

+    RemoveEntryList (&SelectableOption->Link);

+    FreePool (SelectableOption);

+  }

+}

+

+/**

+  Display one selectable option.

+

+  @param  SelectableOption  The selectable option need to be drew.

+  @param  Highlight         Whether the option need to be highlighted.

+

+**/

+VOID

+DisplayOneSelectableOption(

+  IN USER_SELECTABLE_OPTION    *SelectableOption,

+  IN BOOLEAN                   Highlight

+  )

+{

+  if (Highlight) {

+    gST->ConOut->SetAttribute (gST->ConOut, GetHighlightTextColor ());

+  }

+  PrintStringAt (SelectableOption->OptionCol, SelectableOption->OptionRow, SelectableOption->OptionString);

+  gST->ConOut->SetAttribute (gST->ConOut, GetPopupColor ());

+}

+

+/**

+  Add one selectable option to option list. This is the work function for AddUserSelectableOptions.

+

+  @param  PopupType     The option need to be drew.

+  @param  OptionType    The type of this selection option.

+  @param  OptionString  Point to the option string that to be shown.

+  @param  OptionCol     The column that the option need to be drew at.

+  @param  OptionRow     The row that the option need to be drew at.

+

+  @retval  EFI_SUCCESS           This function implement successfully.

+  @retval  EFI_OUT_OF_RESOURCES  There are not enough resources available.

+

+**/

+EFI_STATUS

+AddOneSelectableOption (

+  IN EFI_HII_POPUP_TYPE           PopupType,

+  IN EFI_HII_POPUP_SELECTION      OptionType,

+  IN CHAR16                       *OptionString,

+  IN UINTN                        OptionCol,

+  IN UINTN                        OptionRow

+  )

+{

+  USER_SELECTABLE_OPTION  *UserSelectableOption;

+

+  UserSelectableOption = AllocateZeroPool (sizeof (USER_SELECTABLE_OPTION));

+  if (UserSelectableOption == NULL) {

+    return EFI_OUT_OF_RESOURCES;

+  }

+  //

+  // Initialize the user selectable option based on the PopupType and OptionType.

+  // And then add the option to the option list gUserSelectableOptions.

+  //

+  UserSelectableOption->Signature = USER_SELECTABLE_OPTION_SIGNATURE;

+  UserSelectableOption->OptionString = OptionString;

+  UserSelectableOption->OptionType = OptionType;

+  UserSelectableOption->OptionCol = OptionCol;

+  UserSelectableOption->OptionRow = OptionRow;

+  UserSelectableOption->MinSequence = 0;

+

+  switch (PopupType) {

+  case EfiHiiPopupTypeOk:

+    UserSelectableOption->MaxSequence = 0;

+    UserSelectableOption->Sequence= 0;

+    break;

+  case EfiHiiPopupTypeOkCancel:

+    UserSelectableOption->MaxSequence = 1;

+    if (OptionType == EfiHiiPopupSelectionOk) {

+      UserSelectableOption->Sequence= 0;

+    } else {

+      UserSelectableOption->Sequence= 1;

+    }

+    break;

+  case EfiHiiPopupTypeYesNo:

+    UserSelectableOption->MaxSequence = 1;

+    if (OptionType == EfiHiiPopupSelectionYes) {

+      UserSelectableOption->Sequence = 0;

+    } else {

+      UserSelectableOption->Sequence = 1;

+    }

+    break;

+  case EfiHiiPopupTypeYesNoCancel:

+    UserSelectableOption->MaxSequence = 2;

+    if (OptionType == EfiHiiPopupSelectionYes) {

+      UserSelectableOption->Sequence = 0;

+    } else if (OptionType == EfiHiiPopupSelectionNo){

+      UserSelectableOption->Sequence = 1;

+    } else {

+      UserSelectableOption->Sequence = 2;

+    }

+    break;

+  default:

+    break;

+  }

+  InsertTailList (&gUserSelectableOptions, &UserSelectableOption->Link);

+

+  return EFI_SUCCESS;

+}

+

+/**

+  Add user selectable options to option list for different types of Popup.

+

+  @param  PopupType    Type of the popup to display.

+

+  @retval  EFI_SUCCESS           This function implement successfully.

+  @retval  EFI_OUT_OF_RESOURCES  There are not enough resources available.

+

+**/

+EFI_STATUS

+AddUserSelectableOptions (

+  IN  EFI_HII_POPUP_TYPE  PopupType

+  )

+{

+  EFI_STATUS   Status;

+  UINTN        EndCol;

+  UINTN        StartCol;

+  UINTN        OptionCol;

+  UINTN        OptionRow;

+  UINTN        ColDimension;

+

+  Status = EFI_SUCCESS;

+  EndCol = gPopupDimensions.RightColumn;

+  StartCol = gPopupDimensions.LeftColumn;

+  OptionRow = gPopupDimensions.BottomRow - POPUP_BORDER;

+  ColDimension = EndCol - StartCol + 1;

+

+  InitializeListHead (&gUserSelectableOptions);

+

+  switch (PopupType) {

+  case EfiHiiPopupTypeOk:

+    //

+    // Add [Ok] option to the option list.

+    //

+    OptionCol = StartCol + (ColDimension - USER_SELECTABLE_OPTION_OK_WIDTH) / 2;

+    Status = AddOneSelectableOption (PopupType, EfiHiiPopupSelectionOk, gOkOption, OptionCol, OptionRow);

+    break;

+  case EfiHiiPopupTypeOkCancel:

+    //

+    // Add [Ok] and [Cancel] options to the option list.

+    //

+    OptionCol = StartCol + (ColDimension - USER_SELECTABLE_OPTION_OK_CAL_WIDTH) / 3;

+    Status = AddOneSelectableOption (PopupType, EfiHiiPopupSelectionOk, gOkOption, OptionCol, OptionRow);

+    OptionCol = EndCol - (ColDimension - USER_SELECTABLE_OPTION_OK_CAL_WIDTH) / 3 - (GetStringWidth (gCancelOption) -2) / 2 + 1;

+    Status = AddOneSelectableOption (PopupType, EfiHiiPopupSelectionCancel, gCancelOption, OptionCol, OptionRow);

+    break;

+  case EfiHiiPopupTypeYesNo:

+    //

+    // Add [Yes] and [No] options to the option list.

+    //

+    OptionCol = StartCol + (ColDimension - USER_SELECTABLE_OPTION_YES_NO_WIDTH) / 3;

+    Status = AddOneSelectableOption (PopupType, EfiHiiPopupSelectionYes, gYesOption, OptionCol, OptionRow);

+    OptionCol = EndCol - (ColDimension - USER_SELECTABLE_OPTION_YES_NO_WIDTH) / 3 - (GetStringWidth (gNoOption)- 2) / 2 + 1;

+    Status = AddOneSelectableOption (PopupType, EfiHiiPopupSelectionNo, gNoOption, OptionCol, OptionRow);

+    break;

+  case EfiHiiPopupTypeYesNoCancel:

+    //

+    // Add [Yes], [No] and [Cancel] options to the option list.

+    //

+    OptionCol = StartCol + (ColDimension - USER_SELECTABLE_OPTION_YES_NO_CAL_WIDTH) / 4;

+    Status = AddOneSelectableOption (PopupType, EfiHiiPopupSelectionYes, gYesOption, OptionCol, OptionRow);

+    OptionCol = StartCol + (ColDimension - (GetStringWidth (gNoOption) -2) / 2) / 2;

+    Status = AddOneSelectableOption (PopupType, EfiHiiPopupSelectionNo, gNoOption, OptionCol, OptionRow);

+    OptionCol = EndCol - (ColDimension - USER_SELECTABLE_OPTION_YES_NO_CAL_WIDTH) / 4 - (GetStringWidth (gCancelOption) - 2) / 2 + 1;

+    Status = AddOneSelectableOption (PopupType, EfiHiiPopupSelectionCancel, gCancelOption, OptionCol, OptionRow);

+    break;

+  default:

+    break;

+  }

+  return Status;

+}

+

+/**

+  Show selectable options to user and get the one that user select.

+

+  @param  PopupType      Type of the popup to display.

+  @param  UserSelection  User selection.

+

+**/

+VOID

+GetUserSelection (

+  IN  EFI_HII_POPUP_TYPE       PopupType,

+  OUT EFI_HII_POPUP_SELECTION  *UserSelection

+  )

+{

+  LIST_ENTRY                       *HighlightPos;

+  LIST_ENTRY                       *Link;

+  USER_SELECTABLE_OPTION           *SelectableOption;

+  USER_SELECTABLE_OPTION           *HighlightOption;

+  EFI_INPUT_KEY                    KeyValue;

+  EFI_STATUS                       Status;

+

+  //

+  // Display user selectable options in gUserSelectableOptions and get the option which user selects.

+  //

+  HighlightPos = gUserSelectableOptions.ForwardLink;

+  do {

+    for (Link = gUserSelectableOptions.ForwardLink; Link != &gUserSelectableOptions; Link = Link->ForwardLink) {

+      SelectableOption          = SELECTABLE_OPTION_FROM_LINK (Link);

+      DisplayOneSelectableOption (SelectableOption, (BOOLEAN)(Link == HighlightPos));

+    }

+    //

+    //If UserSelection is NULL, there is no need to handle the key user input, just return.

+    //

+    if (UserSelection == NULL) {

+      return;

+    }

+

+    Status = WaitForKeyStroke (&KeyValue);

+    ASSERT_EFI_ERROR (Status);

+

+    HighlightOption = SELECTABLE_OPTION_FROM_LINK (HighlightPos);

+    switch (KeyValue.UnicodeChar) {

+    case CHAR_NULL:

+      switch (KeyValue.ScanCode) {

+      case SCAN_RIGHT:

+        if (HighlightOption->Sequence < HighlightOption->MaxSequence) {

+          HighlightPos = HighlightPos->ForwardLink;

+        } else {

+          HighlightPos = gUserSelectableOptions.ForwardLink;

+        }

+        break;

+      case SCAN_LEFT:

+        if (HighlightOption->Sequence > HighlightOption->MinSequence) {

+          HighlightPos = HighlightPos->BackLink;

+        } else {

+          HighlightPos = gUserSelectableOptions.BackLink;

+        }

+        break;

+      default:

+        break;

+      }

+      break;

+

+    case CHAR_CARRIAGE_RETURN:

+      *UserSelection = HighlightOption->OptionType;

+      return;

+    default:

+      if (((KeyValue.UnicodeChar | UPPER_LOWER_CASE_OFFSET) == (*gConfirmOptYes | UPPER_LOWER_CASE_OFFSET)) &&

+        (PopupType == EfiHiiPopupTypeYesNo || PopupType == EfiHiiPopupTypeYesNoCancel)) {

+        *UserSelection = EfiHiiPopupSelectionYes;

+        return;

+      } else if ((KeyValue.UnicodeChar | UPPER_LOWER_CASE_OFFSET) == (*gConfirmOptNo| UPPER_LOWER_CASE_OFFSET) &&

+        (PopupType == EfiHiiPopupTypeYesNo || PopupType == EfiHiiPopupTypeYesNoCancel)){

+        *UserSelection = EfiHiiPopupSelectionNo;

+        return;

+      } else if ((KeyValue.UnicodeChar | UPPER_LOWER_CASE_OFFSET) == (*gConfirmOptOk | UPPER_LOWER_CASE_OFFSET) &&

+        (PopupType == EfiHiiPopupTypeOk || PopupType == EfiHiiPopupTypeOkCancel)){

+        *UserSelection = EfiHiiPopupSelectionOk;

+        return;

+      } else if ((KeyValue.UnicodeChar | UPPER_LOWER_CASE_OFFSET) == (*gConfirmOptCancel| UPPER_LOWER_CASE_OFFSET) &&

+        (PopupType == EfiHiiPopupTypeOkCancel || PopupType == EfiHiiPopupTypeYesNoCancel)){

+        *UserSelection = EfiHiiPopupSelectionCancel;

+        return;

+      }

+      break;

+    }

+  } while (TRUE);

+}

+

+/**

+  Get the offset in the input string when the width reaches to a fixed one.

+

+  The input string may contain NARROW_CHAR and WIDE_CHAR.

+  Notice: the input string doesn't contain line break characters.

+

+  @param  String      The input string to be counted.

+  @param  MaxWidth    The max length this function supported.

+  @param  Offset      The max index of the string can be show out. If string's width less than MaxWidth, offset will point to the "\0" of the string.

+

+**/

+VOID

+GetStringOffsetWithWidth (

+  IN  CHAR16               *String,

+  IN  UINTN                MaxWidth,

+  OUT UINTN                *Offset

+  )

+{

+  UINTN   StringWidth;

+  UINTN   CharWidth;

+  UINTN   StrOffset;

+

+  StringWidth = 0;

+  CharWidth   = 1;

+

+  for (StrOffset = 0; String[StrOffset] != CHAR_NULL; StrOffset++) {

+    switch (String[StrOffset]) {

+    case NARROW_CHAR:

+      CharWidth = 1;

+      break;

+    case WIDE_CHAR:

+      CharWidth = 2;

+      break;

+    default:

+      StringWidth += CharWidth;

+      if (StringWidth >= MaxWidth) {

+        *Offset = StrOffset;

+        return;

+      }

+    }

+  }

+  *Offset = StrOffset;

+}

+

+/**

+  Parse the message to check if it contains line break characters.

+  For once call, caller can get the string for one line and the width of the string.

+  This function call be called recursively to parse the whole InputString.

+

+  (Notice: current implementation, it only checks \r, \n characters, it deals \r,\n,\n\r same as \r\n.)

+

+  @param  InputString       String description for this option.

+  @param  OutputString      Buffer to copy the string into, caller is responsible for freeing the buffer.

+  @param  OutputStrWidth    The width of OutputString.

+  @param  Index             Where in InputString to start the copy process

+

+  @return Returns the number of CHAR16 characters that were copied into the OutputString buffer, include the '\0' info.

+

+**/

+UINTN

+ParseMessageString (

+  IN     CHAR16    *InputString,

+  OUT    CHAR16    **OutputString,

+  OUT    UINTN     *OutputStrWidth,

+  IN OUT UINTN     *Index

+  )

+{

+  UINTN          StrOffset;

+

+  if (InputString == NULL || Index == NULL || OutputString == NULL) {

+    return 0;

+  }

+

+  *OutputStrWidth = 0;

+

+  //

+  //Check the string to see if there are line break characters in the string

+  //

+  for (StrOffset = 0;

+    InputString[*Index + StrOffset] != CHAR_CARRIAGE_RETURN && InputString[*Index + StrOffset] != CHAR_LINEFEED && InputString[*Index + StrOffset] != CHAR_NULL;

+    StrOffset++

+  );

+

+  //

+  // The CHAR_NULL has process last time, this time just return 0 to stand for finishing parsing the InputString.

+  //

+  if (StrOffset == 0 && (InputString[*Index + StrOffset] == CHAR_NULL)) {

+    return 0;

+  }

+

+  //

+  // Copy the string to OutputString buffer and calculate the width of OutputString.

+  //

+  *OutputString = AllocateZeroPool ((StrOffset + 1) * sizeof(CHAR16));

+  if (*OutputString == NULL) {

+    return 0;

+  }

+  CopyMem ((*OutputString), &InputString[*Index], StrOffset * sizeof(CHAR16));

+  *OutputStrWidth = (GetStringWidth (*OutputString) -2) / 2;

+

+  //

+  // Update the value of Index, can be used for marking where to check the input string for next call.

+  //

+  if (InputString[*Index + StrOffset] == CHAR_LINEFEED) {

+    //

+    // Skip the /n or /n/r info.

+    //

+    if (InputString[*Index + StrOffset + 1] == CHAR_CARRIAGE_RETURN) {

+      *Index = (*Index + StrOffset + 2);

+    } else {

+      *Index = (*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 = (*Index + StrOffset + 2);

+    } else {

+      *Index = (*Index + StrOffset + 1);

+    }

+  } else {

+    *Index = (*Index + StrOffset);

+  }

+

+  return StrOffset + 1;

+}

+

+/**

+  Calculate the position of the popup.

+

+  @param  PopupType       Type of the popup to display.

+  @param  ScreenForPopup  The screen dimensions for the popup.

+

+**/

+VOID

+CalculatePopupPosition (

+  IN  EFI_HII_POPUP_TYPE     PopupType,

+  OUT EFI_SCREEN_DESCRIPTOR  *ScreenForPopup

+  )

+{

+  CHAR16              *OutputString;

+  UINTN               StringIndex;

+  UINTN               OutputStrWidth;

+  UINTN               OptionRowWidth;

+  UINTN               Columns;

+  UINTN               Rows;

+

+  OptionRowWidth = 0;

+

+  //

+  // Calculate the row number which is needed to show the message string and the max width of the string in one row.

+  //

+  for (StringIndex = 0; ParseMessageString (gMessageString, &OutputString, &OutputStrWidth, &StringIndex) != 0;) {

+    gMesStrLineNum ++;

+    if (gMaxRowWidth < OutputStrWidth) {

+      gMaxRowWidth = OutputStrWidth;

+    }

+    FreePool (OutputString);

+  }

+

+  //

+  // Calculate the row width for the selectable options.(OptionRowWidth = Number * SkipWidth + OptionWidth)

+  //

+  if (PopupType == EfiHiiPopupTypeOk) {

+    OptionRowWidth = USER_SELECTABLE_OPTION_SKIP_WIDTH *2 + USER_SELECTABLE_OPTION_OK_WIDTH;

+  } else if (PopupType == EfiHiiPopupTypeOkCancel) {

+    OptionRowWidth = USER_SELECTABLE_OPTION_SKIP_WIDTH *3 + USER_SELECTABLE_OPTION_OK_CAL_WIDTH;

+  } else if (PopupType == EfiHiiPopupTypeYesNo) {

+    OptionRowWidth = USER_SELECTABLE_OPTION_SKIP_WIDTH *3 + USER_SELECTABLE_OPTION_YES_NO_WIDTH;

+  } else if (PopupType == EfiHiiPopupTypeYesNoCancel) {

+    OptionRowWidth = USER_SELECTABLE_OPTION_SKIP_WIDTH *4 + USER_SELECTABLE_OPTION_YES_NO_CAL_WIDTH;

+  }

+  if (OptionRowWidth > gMaxRowWidth) {

+    gMaxRowWidth = OptionRowWidth;

+  }

+

+  //

+  // Avialble row width for message string = screen width - left popup border width - right popup border width.

+  // Avialble line number for message string = screen height - 1 - popup header height -  popup footer height.

+  // (Notice: screen height - 1 because in current UI page, the bottom row of srceen is usded to show Status Bar,not for form itself.

+  // So we don't use the bottom row for popup either. If macro STATUS_BAR_HEIGHT changed, we also need to update the height here.)

+  //

+  // Select the smaller one between actual dimension of message string and the avialble dimension for message string.

+  //

+  gST->ConOut->QueryMode (gST->ConOut, gST->ConOut->Mode->Mode, &Columns, &Rows);

+  gMaxRowWidth = MIN (gMaxRowWidth, Columns - 2 * POPUP_BORDER);

+  gMesStrLineNum = MIN (gMesStrLineNum, Rows -1 - POPUP_FOOTER_HEIGHT - POPUP_HEADER_HEIGHT);

+

+  //

+  // Calculate the start column, end column, top row and bottom row for the popup.

+  //

+  ScreenForPopup->LeftColumn = (Columns -2 * POPUP_BORDER - gMaxRowWidth) / 2;

+  ScreenForPopup->RightColumn = ScreenForPopup->LeftColumn + gMaxRowWidth + 2 * POPUP_BORDER - 1;

+  ScreenForPopup->TopRow = (Rows - 1 - POPUP_FOOTER_HEIGHT - POPUP_HEADER_HEIGHT - gMesStrLineNum) / 2;

+  ScreenForPopup->BottomRow = ScreenForPopup->TopRow + gMesStrLineNum + POPUP_FOOTER_HEIGHT + POPUP_HEADER_HEIGHT - 1;

+}

+

+/**

+  Draw the Message box.

+  +-------------------------------------------+

+  |            ERROR/WARNING/INFO             |

+  |-------------------------------------------|

+  |              popup messages               |

+  |                                           |

+  |          user selectable options          |

+  +-------------------------------------------+

+

+  @param  PopupStyle   Popup style to use.

+

+**/

+EFI_STATUS

+DrawMessageBox (

+  IN  EFI_HII_POPUP_STYLE    PopupStyle

+  )

+{

+  UINTN             Index;

+  UINTN             Length;

+  UINTN             EndCol;

+  UINTN             TopRow;

+  UINTN             StartCol;

+  UINTN             BottomRow;

+  CHAR16            Character;

+  UINTN             DisplayRow;

+  UINTN             StringIndex;

+  CHAR16            *TempString;

+  CHAR16            *OutputString;

+  UINTN             ColDimension;

+  UINTN             OutputStrWidth;

+  UINTN             DrawMesStrRowNum;

+

+  EndCol = gPopupDimensions.RightColumn;

+  TopRow = gPopupDimensions.TopRow;

+  StartCol = gPopupDimensions.LeftColumn;

+  BottomRow = gPopupDimensions.BottomRow;

+  ColDimension = EndCol - StartCol + 1;

+  DrawMesStrRowNum = 0;

+

+  //

+  // 1. Draw the top of the message box.

+  //

+  Character = BOXDRAW_DOWN_RIGHT;

+  PrintCharAt (StartCol, TopRow, Character);

+  Character = BOXDRAW_HORIZONTAL;

+  for (Index = StartCol; Index + 1 < EndCol; Index++) {

+    PrintCharAt ((UINTN)-1, (UINTN)-1, Character);

+  }

+  Character = BOXDRAW_DOWN_LEFT;

+  PrintCharAt ((UINTN)-1, (UINTN)-1, Character);

+

+  //

+  // 2. Draw the prompt string for different popup styles.

+  //

+  Character = BOXDRAW_VERTICAL;

+  DisplayRow = TopRow + POPUP_BORDER;

+  ClearLines (StartCol,  EndCol, DisplayRow, DisplayRow, GetPopupColor ());

+  PrintCharAt (StartCol, DisplayRow, Character);

+  PrintCharAt (EndCol, DisplayRow, Character);

+  if (PopupStyle == EfiHiiPopupStyleError) {

+    PrintStringAt ((ColDimension - (GetStringWidth (gErrorPopup) - 2) / 2) / 2 + StartCol, DisplayRow, gErrorPopup);

+  } else if (PopupStyle == EfiHiiPopupStyleWarning) {

+    PrintStringAt ((ColDimension - (GetStringWidth (gWarningPopup) - 2) / 2) / 2 + StartCol, DisplayRow, gWarningPopup);

+  } else {

+    PrintStringAt ((ColDimension - (GetStringWidth (gInfoPopup) - 2) / 2) / 2 + StartCol, DisplayRow, gInfoPopup);

+  }

+

+  //

+  // 3. Draw the horizontal line below the prompt string for different popup styles.

+  //

+  DisplayRow = TopRow + POPUP_BORDER + POPUP_STYLE_STRING_HEIGHT;

+  ClearLines (StartCol,  EndCol, DisplayRow, DisplayRow, GetPopupColor ());

+  Character = BOXDRAW_HORIZONTAL;

+  for (Index = StartCol + 1; Index < EndCol; Index++) {

+    PrintCharAt (Index, DisplayRow, Character);

+  }

+  Character = BOXDRAW_VERTICAL;

+  PrintCharAt (StartCol, DisplayRow, Character);

+  PrintCharAt (EndCol, DisplayRow, Character);

+

+  //

+  // 4. Draw the mesage string.

+  //

+  DisplayRow = TopRow + POPUP_HEADER_HEIGHT;

+  for (Index = DisplayRow ,StringIndex = 0; ParseMessageString (gMessageString, &OutputString, &OutputStrWidth,  &StringIndex) != 0 && DrawMesStrRowNum < gMesStrLineNum;) {

+    ClearLines (StartCol,  EndCol, Index, Index, GetPopupColor ());

+    PrintCharAt (StartCol, Index, Character);

+    PrintCharAt (EndCol, Index, Character);

+    if (OutputStrWidth > gMaxRowWidth) {

+      //

+      //OutputStrWidth > MaxMesStrWidth, cut off the string and print print ... instead.

+      //

+      GetStringOffsetWithWidth (OutputString, gMaxRowWidth, &Length);

+      TempString = AllocateZeroPool ((Length + 1) * sizeof (CHAR16));

+      if (TempString == NULL) {

+        FreePool (OutputString);

+        return EFI_OUT_OF_RESOURCES;

+      }

+      StrnCpyS (TempString, Length + 1, OutputString, Length - 3);

+      StrCatS (TempString, Length + 1, L"...");

+      PrintStringAt ((ColDimension - gMaxRowWidth) / 2 + StartCol, Index, TempString);

+      FreePool (TempString);

+    } else {

+      PrintStringAt ((ColDimension - OutputStrWidth) / 2 + StartCol, Index, OutputString);

+    }

+    Index ++;

+    DrawMesStrRowNum ++;

+    FreePool (OutputString);

+  }

+

+  //

+  // 5. Draw an empty line after message string.

+  //

+  ClearLines (StartCol,  EndCol, Index, Index, GetPopupColor ());

+  PrintCharAt (StartCol, Index, Character);

+  PrintCharAt (EndCol, Index, Character);

+  //

+  // Check whether the actual string row number beyond the MesStrRowNum, if yes, print the ...... in the row.

+  //

+  if (OutputStrWidth > 0 && DrawMesStrRowNum >= gMesStrLineNum) {

+    PrintStringAt ((ColDimension - StrLen (L"......")) / 2 + StartCol, Index, L"......");

+  }

+

+  //

+  // 6. Draw an empty line which is used to show user selectable options, will draw concrete option strings in function GetUserSelection().

+  //

+  Character = BOXDRAW_VERTICAL;

+  DisplayRow = BottomRow - POPUP_BORDER;

+  ClearLines (StartCol,  EndCol, DisplayRow, DisplayRow, GetPopupColor ());

+  PrintCharAt (StartCol, DisplayRow, Character);

+  PrintCharAt (EndCol, DisplayRow, Character);

+

+  //

+  // 7. Draw the bottom of the message box.

+  //

+  Character = BOXDRAW_UP_RIGHT;

+  PrintCharAt (StartCol, BottomRow, Character);

+  Character = BOXDRAW_HORIZONTAL;

+  for (Index = StartCol; Index + 1 < EndCol; Index++) {

+    PrintCharAt ((UINTN)-1, (UINTN) -1, Character);

+  }

+  Character = BOXDRAW_UP_LEFT;

+  PrintCharAt ((UINTN)-1, (UINTN) -1, Character);

+

+  return EFI_SUCCESS;

+}

+

+/**

+  Displays a popup window.

+

+  @param  This           A pointer to the EFI_HII_POPUP_PROTOCOL instance.

+  @param  PopupStyle     Popup style to use.

+  @param  PopupType      Type of the popup to display.

+  @param  HiiHandle      HII handle of the string pack containing Message

+  @param  Message        A message to display in the popup box.

+  @param  UserSelection  User selection.

+

+  @retval EFI_SUCCESS            The popup box was successfully displayed.

+  @retval EFI_INVALID_PARAMETER  HiiHandle and Message do not define a valid HII string.

+  @retval EFI_INVALID_PARAMETER  PopupType is not one of the values defined by this specification.

+  @retval EFI_OUT_OF_RESOURCES   There are not enough resources available to display the popup box.

+

+**/

+EFI_STATUS

+EFIAPI

+CreatePopup (

+  IN  EFI_HII_POPUP_PROTOCOL  *This,

+  IN  EFI_HII_POPUP_STYLE     PopupStyle,

+  IN  EFI_HII_POPUP_TYPE      PopupType,

+  IN  EFI_HII_HANDLE          HiiHandle,

+  IN  EFI_STRING_ID           Message,

+  OUT EFI_HII_POPUP_SELECTION *UserSelection OPTIONAL

+  )

+{

+  EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL  *ConOut;

+  EFI_SIMPLE_TEXT_OUTPUT_MODE      SavedConsoleMode;

+  EFI_STATUS                       Status;

+

+  if ((PopupType < EfiHiiPopupTypeOk) || (PopupType > EfiHiiPopupTypeYesNoCancel)) {

+    return EFI_INVALID_PARAMETER;

+  }

+

+  if((HiiHandle == NULL) || (Message == 0)) {

+    return EFI_INVALID_PARAMETER;

+  }

+

+  gMessageString = HiiGetString (HiiHandle, Message, NULL);

+  if((gMessageString == NULL)) {

+    return EFI_INVALID_PARAMETER;

+  }

+

+  ConOut = gST->ConOut;

+  gMaxRowWidth = 0;

+  gMesStrLineNum = 0;

+

+  CopyMem (&SavedConsoleMode, ConOut->Mode, sizeof (SavedConsoleMode));

+  ConOut->EnableCursor (ConOut, FALSE);

+  ConOut->SetAttribute (ConOut, GetPopupColor ());

+

+  CalculatePopupPosition (PopupType, &gPopupDimensions);

+

+  Status = DrawMessageBox (PopupStyle);

+  if (EFI_ERROR (Status)) {

+    goto Done;

+  }

+

+  //

+  // Add user selectable options to option list: gUserSelectableOptions

+  //

+  Status = AddUserSelectableOptions (PopupType);

+  if (EFI_ERROR (Status)) {

+    goto Done;

+  }

+

+  GetUserSelection (PopupType, UserSelection);

+

+Done:

+  //

+  // Restore Conout attributes and free the resources allocate before.

+  //

+  ConOut->EnableCursor (ConOut, SavedConsoleMode.CursorVisible);

+  ConOut->SetCursorPosition (ConOut, SavedConsoleMode.CursorColumn, SavedConsoleMode.CursorRow);

+  ConOut->SetAttribute (ConOut, SavedConsoleMode.Attribute);

+  FreeSelectableOptions (&gUserSelectableOptions);

+  FreePool (gMessageString);

+

+  return Status;

+}

+