Do the following enhancement for SetupBrowser:

  1. Support Scroll up and down. When hit the top, the last page will be showed. When hit the bottom, the first page will be showed.
  2. Show forms page by page based on the option (including unselected and selected).
  3. Add PCD to configure whether TEXT statement is set to Grayout option.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11355 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index ae0d6527befc7dc153979abacaa4d96ee54616ac..c1e46fa356615a48f3702031cced8c1145bc2a6f 100644 (file)
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -302,6 +302,11 @@
   #  If FALSE, then unaligned I/O, MMIO, and PCI Configuration cycles through the PCI I/O Protocol are disabled.\r
   #  The default value for this PCD is to disable support for unaligned PCI I/O Protocol requests.\r
   gEfiMdeModulePkgTokenSpaceGuid.PcdUnalignedPciIoEnable|FALSE|BOOLEAN|0x0001003e\r
+\r
+  ## This PCD specifies whether TEXT statement is always set to GrayOut statement in HII Form Browser.\r
+  #  If TRUE,  TEXT statement will always be set to GrayOut.\r
+  #  If FALSE, TEXT statement will be set to GrayOut only when GrayOut condition is TRUE.\r
+  gEfiMdeModulePkgTokenSpaceGuid.PcdBrowserGrayOutTextStatement|FALSE|BOOLEAN|0x0001004f\r
   \r
 [PcdsFeatureFlag.IA32, PcdsFeatureFlag.X64]\r
   ##\r

diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c b/MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c
index e5f31d2c310e23e6002481198204c351ddad3f96..ca766a24bc1fb1dd335724f7fb3fb8d260bde80e 100644 (file)
--- a/MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c
+++ b/MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c
@@ -1,7 +1,7 @@
 /** @file\r
 Utility functions for UI presentation.\r
 \r
-Copyright (c) 2004 - 2010, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2004 - 2011, Intel Corporation. All rights reserved.<BR>\r
 This program and the accompanying materials\r
 are licensed and made available under the terms and conditions of the BSD License\r
 which accompanies this distribution.  The full text of the license may be found at\r
@@ -773,6 +773,7 @@ UpdateKeyHelp (
   case EFI_IFR_TEXT_OP:\r
   case EFI_IFR_ACTION_OP:\r
   case EFI_IFR_RESET_BUTTON_OP:\r
+  case EFI_IFR_SUBTITLE_OP:\r
     ClearLines (LeftColumnOfHelp, RightColumnOfHelp, TopRowOfHelp, BottomRowOfHelp, KEYHELP_TEXT | KEYHELP_BACKGROUND);\r
 \r
     if (!Selected) {\r
@@ -785,7 +786,7 @@ UpdateKeyHelp (
       }\r
 \r
       PrintAt (StartColumnOfHelp, BottomRowOfHelp, L"%c%c%s", ARROW_UP, ARROW_DOWN, gMoveHighlight);\r
-      if (Statement->Operand != EFI_IFR_TEXT_OP) {\r
+      if (Statement->Operand != EFI_IFR_TEXT_OP && Statement->Operand != EFI_IFR_SUBTITLE_OP) {\r
         PrintStringAt (SecCol, BottomRowOfHelp, gEnterString);\r
       }\r
     } else {\r

diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/SetupBrowserDxe.inf b/MdeModulePkg/Universal/SetupBrowserDxe/SetupBrowserDxe.inf
index 50387b72eefdb4cccf8841e111c9da1c04480d07..0cba75189e6680d90708fa70af7a69a55b8005c6 100644 (file)
--- a/MdeModulePkg/Universal/SetupBrowserDxe/SetupBrowserDxe.inf
+++ b/MdeModulePkg/Universal/SetupBrowserDxe/SetupBrowserDxe.inf
@@ -76,6 +76,7 @@
 \r
 [FeaturePcd]\r
   gEfiMdeModulePkgTokenSpaceGuid.PcdFrameworkCompatibilitySupport          ## CONSUMES\r
+  gEfiMdeModulePkgTokenSpaceGuid.PcdBrowserGrayOutTextStatement            ## CONSUMES\r
 \r
 [Pcd]\r
   gEfiMdeModulePkgTokenSpaceGuid.PcdBrowserSubtitleTextColor               ## CONSUMES\r

diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/Ui.c b/MdeModulePkg/Universal/SetupBrowserDxe/Ui.c
index 553c2546b29a172a6d7d307eee95be094d1b8de4..05fcb7cc5da27d29bcbbdc35a14fa533c760344b 100644 (file)
--- a/MdeModulePkg/Universal/SetupBrowserDxe/Ui.c
+++ b/MdeModulePkg/Universal/SetupBrowserDxe/Ui.c
@@ -622,6 +622,15 @@ UiAddMenuOption (
       MenuOption->IsQuestion = TRUE;\r
       break;\r
 \r
+    case EFI_IFR_TEXT_OP:\r
+      if (FeaturePcdGet (PcdBrowserGrayOutTextStatement)) {\r
+        //\r
+        // Initializing GrayOut option as TRUE for Text setup options \r
+        // so that those options will be Gray in colour and un selectable.\r
+        //\r
+        MenuOption->GrayOut = TRUE;\r
+      }\r
+\r
     default:\r
       MenuOption->IsQuestion = FALSE;\r
       break;\r
@@ -1338,7 +1347,6 @@ ValueIsScroll (
   )\r
 {\r
   LIST_ENTRY      *Temp;\r
-  UI_MENU_OPTION  *MenuOption;\r
 \r
   Temp = Direction ? CurrentPos->BackLink : CurrentPos->ForwardLink;\r
 \r
@@ -1346,14 +1354,7 @@ ValueIsScroll (
     return TRUE;\r
   }\r
 \r
-  for (; Temp != &gMenuOption; Temp = Direction ? Temp->BackLink : Temp->ForwardLink) {\r
-    MenuOption = MENU_OPTION_FROM_LINK (Temp);\r
-    if (IsSelectable (MenuOption)) {\r
-      return FALSE;\r
-    }\r
-  }\r
-\r
-  return TRUE;\r
+  return FALSE;\r
 }\r
 \r
 \r
@@ -1364,6 +1365,7 @@ ValueIsScroll (
 \r
   @param  GoUp                   The navigation direction. TRUE: up, FALSE: down.\r
   @param  CurrentPosition        Current position.\r
+  @param  GapToTop               Gap position to top or bottom.\r
 \r
   @return The row distance from current MenuOption to next selectable MenuOption.\r
 \r
@@ -1371,51 +1373,54 @@ ValueIsScroll (
 INTN\r
 MoveToNextStatement (\r
   IN     BOOLEAN                   GoUp,\r
-  IN OUT LIST_ENTRY                **CurrentPosition\r
+  IN OUT LIST_ENTRY                **CurrentPosition,\r
+  IN     UINTN                     GapToTop\r
   )\r
 {\r
   INTN             Distance;\r
   LIST_ENTRY       *Pos;\r
-  BOOLEAN          HitEnd;\r
   UI_MENU_OPTION   *NextMenuOption;\r
+  UI_MENU_OPTION   *PreMenuOption;\r
 \r
-  Distance = 0;\r
-  Pos      = *CurrentPosition;\r
-  HitEnd   = FALSE;\r
+  Distance      = 0;\r
+  Pos           = *CurrentPosition;\r
+  PreMenuOption = MENU_OPTION_FROM_LINK (Pos);\r
 \r
   while (TRUE) {\r
     NextMenuOption = MENU_OPTION_FROM_LINK (Pos);\r
+    if (GoUp && (PreMenuOption != NextMenuOption)) {\r
+      //\r
+      // Current Position doesn't need to be caculated when go up.\r
+      // Caculate distanct at first when go up\r
+      //\r
+      if ((UINTN) Distance + NextMenuOption->Skip > GapToTop) {\r
+        NextMenuOption = PreMenuOption;\r
+        break;\r
+      }\r
+      Distance += NextMenuOption->Skip;\r
+    }\r
     if (IsSelectable (NextMenuOption)) {\r
       break;\r
     }\r
     if ((GoUp ? Pos->BackLink : Pos->ForwardLink) == &gMenuOption) {\r
-      HitEnd = TRUE;\r
+      //\r
+      // Arrive at top.\r
+      //\r
+      Distance = -1;\r
       break;\r
     }\r
-    Distance += NextMenuOption->Skip;\r
-    Pos = (GoUp ? Pos->BackLink : Pos->ForwardLink);\r
-  }\r
-\r
-  if (HitEnd) {\r
-    //\r
-    // If we hit end there is still no statement can be focused,\r
-    // we go backwards to find the statement can be focused.\r
-    //\r
-    Distance = 0;\r
-    Pos = *CurrentPosition;\r
-\r
-    while (TRUE) {\r
-      NextMenuOption = MENU_OPTION_FROM_LINK (Pos);\r
-      if (IsSelectable (NextMenuOption)) {\r
-        break;\r
-      }\r
-      if ((!GoUp ? Pos->BackLink : Pos->ForwardLink) == &gMenuOption) {\r
-        ASSERT (FALSE);\r
+    if (!GoUp) {\r
+      //\r
+      // Caculate distanct at later when go down\r
+      //\r
+      if ((UINTN) Distance + NextMenuOption->Skip > GapToTop) {\r
+        NextMenuOption = PreMenuOption;\r
         break;\r
       }\r
-      Distance -= NextMenuOption->Skip;\r
-      Pos = (!GoUp ? Pos->BackLink : Pos->ForwardLink);\r
+      Distance += NextMenuOption->Skip;\r
     }\r
+    PreMenuOption = NextMenuOption;\r
+    Pos = (GoUp ? Pos->BackLink : Pos->ForwardLink);\r
   }\r
 \r
   *CurrentPosition = &NextMenuOption->Link;\r
@@ -1634,6 +1639,7 @@ UiDisplayMenu (
   BOOLEAN                         SavedValue;\r
   BOOLEAN                         UpArrow;\r
   BOOLEAN                         DownArrow;\r
+  BOOLEAN                         InitializedFlag;\r
   EFI_STATUS                      Status;\r
   EFI_INPUT_KEY                   Key;\r
   LIST_ENTRY                      *Link;\r
@@ -1725,8 +1731,9 @@ UiDisplayMenu (
   }\r
 \r
   //\r
-  // Get user's selection\r
+  // Init option as the current user's selection\r
   //\r
+  InitializedFlag = TRUE;\r
   NewPos = gMenuOption.ForwardLink;\r
 \r
   gST->ConOut->EnableCursor (gST->ConOut, FALSE);\r
@@ -1799,8 +1806,7 @@ UiDisplayMenu (
           Width       = GetWidth (Statement, MenuOption->Handle);\r
           OriginalRow = Row;\r
 \r
-          if (Statement->Operand == EFI_IFR_REF_OP && \r
-            MenuOption->Col >= 2) {\r
+          if (Statement->Operand == EFI_IFR_REF_OP && MenuOption->Col >= 2) {\r
             //\r
             // Print Arrow for Goto button.\r
             //\r
@@ -2048,6 +2054,10 @@ UiDisplayMenu (
       // NewPos:     Current menu option that need to hilight\r
       //\r
       ControlFlag = CfUpdateHelpString;\r
+      if (InitializedFlag) {\r
+        InitializedFlag = FALSE;\r
+        MoveToNextStatement (FALSE, &NewPos, BottomRow - TopRow);\r
+      }\r
 \r
       //\r
       // Repaint flag is normally reset when finish processing CfUpdateHelpString. Temporarily\r
@@ -2181,22 +2191,17 @@ UiDisplayMenu (
         }\r
 \r
         //\r
-        // This is only possible if we entered this page and the first menu option is\r
-        // a "non-menu" item.  In that case, force it UiDown\r
+        // This is the current selected statement\r
         //\r
         MenuOption = MENU_OPTION_FROM_LINK (NewPos);\r
+        Statement = MenuOption->ThisTag;\r
+        Selection->Statement = Statement;\r
         if (!IsSelectable (MenuOption)) {\r
-          ASSERT (ScreenOperation == UiNoOperation);\r
-          ScreenOperation = UiDown;\r
-          ControlFlag     = CfScreenOperation;\r
+          Repaint = SavedValue;\r
+          UpdateKeyHelp (Selection, MenuOption, FALSE);\r
           break;\r
         }\r
 \r
-        //\r
-        // This is the current selected statement\r
-        //\r
-        Statement = MenuOption->ThisTag;\r
-        Selection->Statement = Statement;\r
         //\r
         // Record highlight for current menu\r
         //\r
@@ -2305,12 +2310,12 @@ UiDisplayMenu (
     case CfUpdateHelpString:\r
       ControlFlag = CfPrepareToReadKey;\r
 \r
-        if (Repaint || NewLine) {\r
+      if (Repaint || NewLine) {\r
         //\r
         // Don't print anything if it is a NULL help token\r
         //\r
         ASSERT(MenuOption != NULL);\r
-        if (MenuOption->ThisTag->Help == 0) {\r
+        if (MenuOption->ThisTag->Help == 0 || !IsSelectable (MenuOption)) {\r
           StringPtr = L"\0";\r
         } else {\r
           StringPtr = GetToken (MenuOption->ThisTag->Help, MenuOption->Handle);\r
@@ -2484,20 +2489,6 @@ UiDisplayMenu (
           ControlFlag = CfReadKey;\r
           break;\r
         }\r
-        //\r
-        // if there is nothing logical to place a cursor on, just move on to wait for a key.\r
-        //\r
-        for (Link = gMenuOption.ForwardLink; Link != &gMenuOption; Link = Link->ForwardLink) {\r
-          NextMenuOption = MENU_OPTION_FROM_LINK (Link);\r
-          if (IsSelectable (NextMenuOption)) {\r
-            break;\r
-          }\r
-        }\r
-\r
-        if (Link == &gMenuOption) {\r
-          ControlFlag = CfPrepareToReadKey;\r
-          break;\r
-        }\r
       }\r
 \r
       for (Index = 0;\r
@@ -2808,47 +2799,47 @@ UiDisplayMenu (
     case CfUiUp:\r
       ControlFlag = CfCheckSelection;\r
 \r
-      SavedListEntry = TopOfScreen;\r
+      SavedListEntry = NewPos;\r
 \r
       ASSERT(NewPos != NULL);\r
+      //\r
+      // Adjust Date/Time position before we advance forward.\r
+      //\r
+      AdjustDateAndTimePosition (TRUE, &NewPos);\r
       if (NewPos->BackLink != &gMenuOption) {\r
-        NewLine = TRUE;\r
-        //\r
-        // Adjust Date/Time position before we advance forward.\r
-        //\r
-        AdjustDateAndTimePosition (TRUE, &NewPos);\r
-\r
-        //\r
-        // Caution that we have already rewind to the top, don't go backward in this situation.\r
-        //\r
-        if (NewPos->BackLink != &gMenuOption) {\r
-          NewPos = NewPos->BackLink;\r
-        }\r
+        MenuOption = MENU_OPTION_FROM_LINK (NewPos);\r
+        NewLine    = TRUE;\r
+        NewPos     = NewPos->BackLink;\r
 \r
-        Difference = MoveToNextStatement (TRUE, &NewPos);\r
         PreviousMenuOption = MENU_OPTION_FROM_LINK (NewPos);\r
         DistanceValue = PreviousMenuOption->Skip;\r
-\r
-        //\r
-        // Since the behavior of hitting the up arrow on a Date/Time op-code is intended\r
-        // to be one that back to the previous set of op-codes, we need to advance to the sencond\r
-        // Date/Time op-code and leave the remaining logic in UiDown intact so the appropriate\r
-        // checking can be done.\r
-        //\r
-        DistanceValue += AdjustDateAndTimePosition (TRUE, &NewPos);\r
-        \r
+        Difference    = 0;\r
+        if (MenuOption->Row >= DistanceValue + TopRow) {\r
+          Difference = MoveToNextStatement (TRUE, &NewPos, MenuOption->Row - TopRow - DistanceValue);\r
+        }\r
+        NextMenuOption = MENU_OPTION_FROM_LINK (NewPos);\r
+       \r
         ASSERT (MenuOption != NULL);\r
         if (Difference < 0) {\r
           //\r
-          // We want to goto previous MenuOption, but finally we go down.\r
-          // it means that we hit the begining MenuOption that can be focused\r
-          // so we simply scroll to the top\r
+          // We hit the begining MenuOption that can be focused\r
+          // so we simply scroll to the top.\r
           //\r
-          if (SavedListEntry != gMenuOption.ForwardLink) {\r
+          if (TopOfScreen != gMenuOption.ForwardLink) {\r
             TopOfScreen = gMenuOption.ForwardLink;\r
             Repaint     = TRUE;\r
+          } else {\r
+            //\r
+            // Scroll up to the last page when we have arrived at top page.\r
+            //\r
+            NewPos          = &gMenuOption;\r
+            TopOfScreen     = &gMenuOption;\r
+            MenuOption      = MENU_OPTION_FROM_LINK (SavedListEntry);\r
+            ScreenOperation = UiPageUp;\r
+            ControlFlag     = CfScreenOperation;\r
+            break;\r
           }\r
-        } else if ((INTN) MenuOption->Row - (INTN) DistanceValue - Difference < (INTN) TopRow) {\r
+        } else if (MenuOption->Row < TopRow + DistanceValue + Difference) {\r
           //\r
           // Previous focus MenuOption is above the TopOfScreen, so we need to scroll\r
           //\r
@@ -2856,27 +2847,30 @@ UiDisplayMenu (
           Repaint     = TRUE;\r
           SkipValue = 0;\r
           OldSkipValue = 0;\r
+        } else if (!IsSelectable (NextMenuOption)) {\r
+          //\r
+          // Continue to go up until scroll to next page or the selectable option is found.\r
+          //\r
+          ScreenOperation = UiUp;\r
+          ControlFlag     = CfScreenOperation;\r
         }\r
 \r
         //\r
         // If we encounter a Date/Time op-code set, rewind to the first op-code of the set.\r
         //\r
         AdjustDateAndTimePosition (TRUE, &TopOfScreen);\r
-\r
+        AdjustDateAndTimePosition (TRUE, &NewPos);\r
+        MenuOption = MENU_OPTION_FROM_LINK (SavedListEntry);\r
         UpdateStatusBar (INPUT_ERROR, MenuOption->ThisTag->QuestionFlags, FALSE);\r
       } else {\r
-        SavedMenuOption = MenuOption;\r
-        MenuOption      = MENU_OPTION_FROM_LINK (NewPos);\r
-        if (!IsSelectable (MenuOption)) {\r
-          //\r
-          // If we are at the end of the list and sitting on a text op, we need to more forward\r
-          //\r
-          ScreenOperation = UiDown;\r
-          ControlFlag     = CfScreenOperation;\r
-          break;\r
-        }\r
-\r
-        MenuOption = SavedMenuOption;\r
+        //\r
+        // Scroll up to the last page.\r
+        //\r
+        NewPos          = &gMenuOption;\r
+        TopOfScreen     = &gMenuOption;\r
+        MenuOption      = MENU_OPTION_FROM_LINK (SavedListEntry);\r
+        ScreenOperation = UiPageUp;\r
+        ControlFlag     = CfScreenOperation;\r
       }\r
       break;\r
 \r
@@ -2893,38 +2887,59 @@ UiDisplayMenu (
       NewLine   = TRUE;\r
       Repaint   = TRUE;\r
       Link      = TopOfScreen;\r
-      PreviousMenuOption = MENU_OPTION_FROM_LINK (Link);\r
-      Index = BottomRow;\r
+      Index     = BottomRow;\r
       while ((Index >= TopRow) && (Link->BackLink != &gMenuOption)) {\r
-        Index = Index - PreviousMenuOption->Skip;\r
         Link = Link->BackLink;\r
         PreviousMenuOption = MENU_OPTION_FROM_LINK (Link);\r
+        if (Index < PreviousMenuOption->Skip) {\r
+          Index = 0;\r
+          break;\r
+        }\r
+        Index = Index - PreviousMenuOption->Skip;\r
       }\r
+      \r
+      if ((Link->BackLink == &gMenuOption) && (Index >= TopRow)) {\r
+        if (TopOfScreen == &gMenuOption) {\r
+          TopOfScreen = gMenuOption.ForwardLink;\r
+          NewPos      = gMenuOption.BackLink;\r
+          MoveToNextStatement (TRUE, &NewPos, BottomRow - TopRow);\r
+          Repaint = FALSE;\r
+        } else if (TopOfScreen != Link) {\r
+          TopOfScreen = Link;\r
+          NewPos      = Link;\r
+          MoveToNextStatement (FALSE, &NewPos, BottomRow - TopRow);\r
+        } else {\r
+          //\r
+          // Finally we know that NewPos is the last MenuOption can be focused.\r
+          //\r
+          Repaint = FALSE;\r
+          NewPos  = Link;\r
+          MoveToNextStatement (FALSE, &NewPos, BottomRow - TopRow);\r
+        }\r
+      } else {\r
+        if (Index + 1 < TopRow) {\r
+          //\r
+          // Back up the previous option.\r
+          //\r
+          Link = Link->ForwardLink;\r
+        }\r
 \r
-      TopOfScreen = Link;\r
-      Difference = MoveToNextStatement (TRUE, &Link);\r
-      if (Difference > 0) {\r
         //\r
-        // The focus MenuOption is above the TopOfScreen\r
+        // Move to the option in Next page.\r
         //\r
-        TopOfScreen = Link;\r
-      } else if (Difference < 0) {\r
+        if (TopOfScreen == &gMenuOption) {\r
+          NewPos = gMenuOption.BackLink;\r
+          MoveToNextStatement (TRUE, &NewPos, BottomRow - TopRow);\r
+        } else {\r
+          NewPos = Link;\r
+          MoveToNextStatement (FALSE, &NewPos, BottomRow - TopRow);\r
+        }\r
+\r
         //\r
-        // This happens when there is no MenuOption can be focused from\r
-        // Current MenuOption to the first MenuOption\r
+        // There are more MenuOption needing scrolling up.\r
         //\r
-        TopOfScreen = gMenuOption.ForwardLink;\r
-      }\r
-      Index += Difference;\r
-      if (Index < TopRow) {\r
-        MenuOption = NULL;\r
-      }\r
-\r
-      if (NewPos == Link) {\r
-        Repaint = FALSE;\r
-        NewLine = FALSE;\r
-      } else {\r
-        NewPos = Link;\r
+        TopOfScreen = Link;\r
+        MenuOption  = NULL;\r
       }\r
 \r
       //\r
@@ -2956,28 +2971,35 @@ UiDisplayMenu (
         NextMenuOption = MENU_OPTION_FROM_LINK (Link);\r
       }\r
 \r
-      Index += MoveToNextStatement (FALSE, &Link);\r
-      if (Index > BottomRow) {\r
+      if ((Link->ForwardLink == &gMenuOption) && (Index <= BottomRow)) {\r
+        //\r
+        // Finally we know that NewPos is the last MenuOption can be focused.\r
+        //\r
+        Repaint = FALSE;\r
+        MoveToNextStatement (TRUE, &Link, Index - TopRow);\r
+      } else {\r
+        if (Index - 1 > BottomRow) {\r
+          //\r
+          // Back up the previous option.\r
+          //\r
+          Link = Link->BackLink;\r
+        }\r
         //\r
-        // There are more MenuOption needing scrolling\r
+        // There are more MenuOption needing scrolling down.\r
         //\r
         TopOfScreen = Link;\r
         MenuOption = NULL;\r
-      }\r
-      if (NewPos == Link && Index <= BottomRow) {\r
         //\r
-        // Finally we know that NewPos is the last MenuOption can be focused.\r
+        // Move to the option in Next page.\r
         //\r
-        NewLine = FALSE;\r
-        Repaint = FALSE;\r
-      } else {\r
-        NewPos  = Link;\r
+        MoveToNextStatement (FALSE, &Link, BottomRow - TopRow);\r
       }\r
 \r
       //\r
       // If we encounter a Date/Time op-code set, rewind to the first op-code of the set.\r
       // Don't do this when we are already in the last page.\r
       //\r
+      NewPos  = Link;\r
       AdjustDateAndTimePosition (TRUE, &TopOfScreen);\r
       AdjustDateAndTimePosition (TRUE, &NewPos);\r
       break;\r
@@ -2993,21 +3015,49 @@ UiDisplayMenu (
       // the Date/Time op-code.\r
       //\r
       SavedListEntry = NewPos;\r
-      DistanceValue  = AdjustDateAndTimePosition (FALSE, &NewPos);\r
+      AdjustDateAndTimePosition (FALSE, &NewPos);\r
 \r
       if (NewPos->ForwardLink != &gMenuOption) {\r
         MenuOption      = MENU_OPTION_FROM_LINK (NewPos);\r
         NewLine         = TRUE;\r
         NewPos          = NewPos->ForwardLink;\r
 \r
-        DistanceValue  += MoveToNextStatement (FALSE, &NewPos);\r
+        Difference      = 0;\r
+        if (BottomRow >= MenuOption->Row + MenuOption->Skip) {\r
+          Difference    = MoveToNextStatement (FALSE, &NewPos, BottomRow - MenuOption->Row - MenuOption->Skip);\r
+          //\r
+          // We hit the end of MenuOption that can be focused\r
+          // so we simply scroll to the first page.\r
+          //\r
+          if (Difference < 0) {\r
+            //\r
+            // Scroll to the first page.\r
+            //\r
+            if (TopOfScreen != gMenuOption.ForwardLink) {\r
+              TopOfScreen = gMenuOption.ForwardLink;\r
+              Repaint     = TRUE;\r
+              MenuOption  = NULL;\r
+            } else {\r
+              MenuOption = MENU_OPTION_FROM_LINK (SavedListEntry);\r
+            }\r
+            NewPos        = gMenuOption.ForwardLink;\r
+            MoveToNextStatement (FALSE, &NewPos, BottomRow - TopRow);\r
+    \r
+            //\r
+            // If we are at the end of the list and sitting on a Date/Time op, rewind to the head.\r
+            //\r
+            AdjustDateAndTimePosition (TRUE, &TopOfScreen);\r
+            AdjustDateAndTimePosition (TRUE, &NewPos);\r
+            break;\r
+          }\r
+        }\r
         NextMenuOption  = MENU_OPTION_FROM_LINK (NewPos);\r
 \r
         //\r
         // An option might be multi-line, so we need to reflect that data in the overall skip value\r
         //\r
         UpdateOptionSkipLines (Selection, NextMenuOption, &OptionString, (UINTN) SkipValue);\r
-        DistanceValue  += NextMenuOption->Skip;\r
+        DistanceValue  = Difference + NextMenuOption->Skip;\r
 \r
         Temp = MenuOption->Row + MenuOption->Skip + DistanceValue - 1;\r
         if ((MenuOption->Row + MenuOption->Skip == BottomRow + 1) &&\r
@@ -3098,6 +3148,12 @@ UiDisplayMenu (
 \r
           Repaint       = TRUE;\r
           OldSkipValue  = SkipValue;\r
+        } else if (!IsSelectable (NextMenuOption)) {\r
+          //\r
+          // Continue to go down until scroll to next page or the selectable option is found.\r
+          //\r
+          ScreenOperation = UiDown;\r
+          ControlFlag     = CfScreenOperation;\r
         }\r
 \r
         MenuOption = MENU_OPTION_FROM_LINK (SavedListEntry);\r
@@ -3105,23 +3161,26 @@ UiDisplayMenu (
         UpdateStatusBar (INPUT_ERROR, MenuOption->ThisTag->QuestionFlags, FALSE);\r
 \r
       } else {\r
-        SavedMenuOption = MenuOption;\r
-        MenuOption      = MENU_OPTION_FROM_LINK (NewPos);\r
-        if (!IsSelectable (MenuOption)) {\r
-          //\r
-          // If we are at the end of the list and sitting on a text op, we need to more forward\r
-          //\r
-          ScreenOperation = UiUp;\r
-          ControlFlag     = CfScreenOperation;\r
-          break;\r
-        }\r
-\r
-        MenuOption = SavedMenuOption;\r
         //\r
-        // If we are at the end of the list and sitting on a Date/Time op, rewind to the head.\r
+        // Scroll to the first page.\r
         //\r
-        AdjustDateAndTimePosition (TRUE, &NewPos);\r
+        if (TopOfScreen != gMenuOption.ForwardLink) {\r
+          TopOfScreen = gMenuOption.ForwardLink;\r
+          Repaint     = TRUE;\r
+          MenuOption  = NULL;\r
+        } else {\r
+          MenuOption = MENU_OPTION_FROM_LINK (SavedListEntry);\r
+        }\r
+        NewLine       = TRUE;\r
+        NewPos        = gMenuOption.ForwardLink;\r
+        MoveToNextStatement (FALSE, &NewPos, BottomRow - TopRow);\r
       }\r
+\r
+      //\r
+      // If we are at the end of the list and sitting on a Date/Time op, rewind to the head.\r
+      //\r
+      AdjustDateAndTimePosition (TRUE, &TopOfScreen);\r
+      AdjustDateAndTimePosition (TRUE, &NewPos);\r
       break;\r
 \r
     case CfUiSave:\r