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[mirror_edk2.git] / MdeModulePkg / Universal / SetupBrowserDxe / Ui.c
1 /** @file
2 Utility functions for User Interface functions.
3
4 Copyright (c) 2004 - 2007, Intel Corporation
5 All rights reserved. This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
9
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12
13 **/
14
15 #include "Ui.h"
16 #include "Setup.h"
17
18 LIST_ENTRY Menu;
19 LIST_ENTRY gMenuList;
20 MENU_REFRESH_ENTRY *gMenuRefreshHead;
21
22 //
23 // Search table for UiDisplayMenu()
24 //
25 SCAN_CODE_TO_SCREEN_OPERATION gScanCodeToOperation[] = {
26 {
27 SCAN_UP,
28 UiUp,
29 },
30 {
31 SCAN_DOWN,
32 UiDown,
33 },
34 {
35 SCAN_PAGE_UP,
36 UiPageUp,
37 },
38 {
39 SCAN_PAGE_DOWN,
40 UiPageDown,
41 },
42 {
43 SCAN_ESC,
44 UiReset,
45 },
46 {
47 SCAN_F2,
48 UiPrevious,
49 },
50 {
51 SCAN_LEFT,
52 UiLeft,
53 },
54 {
55 SCAN_RIGHT,
56 UiRight,
57 },
58 {
59 SCAN_F9,
60 UiDefault,
61 },
62 {
63 SCAN_F10,
64 UiSave
65 }
66 };
67
68 SCREEN_OPERATION_T0_CONTROL_FLAG gScreenOperationToControlFlag[] = {
69 {
70 UiNoOperation,
71 CfUiNoOperation,
72 },
73 {
74 UiDefault,
75 CfUiDefault,
76 },
77 {
78 UiSelect,
79 CfUiSelect,
80 },
81 {
82 UiUp,
83 CfUiUp,
84 },
85 {
86 UiDown,
87 CfUiDown,
88 },
89 {
90 UiLeft,
91 CfUiLeft,
92 },
93 {
94 UiRight,
95 CfUiRight,
96 },
97 {
98 UiReset,
99 CfUiReset,
100 },
101 {
102 UiSave,
103 CfUiSave,
104 },
105 {
106 UiPrevious,
107 CfUiPrevious,
108 },
109 {
110 UiPageUp,
111 CfUiPageUp,
112 },
113 {
114 UiPageDown,
115 CfUiPageDown
116 }
117 };
118
119
120 /**
121 Set Buffer to Value for Size bytes.
122
123 @param Buffer Memory to set.
124 @param Size Number of bytes to set
125 @param Value Value of the set operation.
126
127 @return Value.
128
129 **/
130 VOID
131 SetUnicodeMem (
132 IN VOID *Buffer,
133 IN UINTN Size,
134 IN CHAR16 Value
135 )
136 {
137 CHAR16 *Ptr;
138
139 Ptr = Buffer;
140 while ((Size--) != 0) {
141 *(Ptr++) = Value;
142 }
143 }
144
145
146 /**
147 Initialize Menu option list.
148
149 **/
150 VOID
151 UiInitMenu (
152 VOID
153 )
154 {
155 InitializeListHead (&Menu);
156 }
157
158
159 /**
160 Initialize Menu option list.
161
162 **/
163 VOID
164 UiInitMenuList (
165 VOID
166 )
167 {
168 InitializeListHead (&gMenuList);
169 }
170
171
172 /**
173 Remove a Menu in list, and return FormId/QuestionId for previous Menu.
174
175 @param Selection Menu selection.
176
177 **/
178 VOID
179 UiRemoveMenuListEntry (
180 OUT UI_MENU_SELECTION *Selection
181 )
182 {
183 UI_MENU_LIST *UiMenuList;
184
185 if (!IsListEmpty (&gMenuList)) {
186 UiMenuList = CR (gMenuList.ForwardLink, UI_MENU_LIST, MenuLink, UI_MENU_LIST_SIGNATURE);
187
188 Selection->FormId = UiMenuList->FormId;
189 Selection->QuestionId = UiMenuList->QuestionId;
190 RemoveEntryList (&UiMenuList->MenuLink);
191 gBS->FreePool (UiMenuList);
192 }
193 }
194
195
196 /**
197 Free Menu option linked list.
198
199 **/
200 VOID
201 UiFreeMenuList (
202 VOID
203 )
204 {
205 UI_MENU_LIST *UiMenuList;
206
207 while (!IsListEmpty (&gMenuList)) {
208 UiMenuList = CR (gMenuList.ForwardLink, UI_MENU_LIST, MenuLink, UI_MENU_LIST_SIGNATURE);
209 RemoveEntryList (&UiMenuList->MenuLink);
210 gBS->FreePool (UiMenuList);
211 }
212 }
213
214
215 /**
216 Add one menu entry to the linked lst
217
218 @param Selection Menu selection.
219
220 **/
221 VOID
222 UiAddMenuListEntry (
223 IN UI_MENU_SELECTION *Selection
224 )
225 {
226 UI_MENU_LIST *UiMenuList;
227
228 UiMenuList = AllocateZeroPool (sizeof (UI_MENU_LIST));
229 ASSERT (UiMenuList != NULL);
230
231 UiMenuList->Signature = UI_MENU_LIST_SIGNATURE;
232 UiMenuList->FormId = Selection->FormId;
233 UiMenuList->QuestionId = Selection->QuestionId;
234
235 InsertHeadList (&gMenuList, &UiMenuList->MenuLink);
236 }
237
238
239 /**
240 Free Menu option linked list.
241
242 **/
243 VOID
244 UiFreeMenu (
245 VOID
246 )
247 {
248 UI_MENU_OPTION *MenuOption;
249
250 while (!IsListEmpty (&Menu)) {
251 MenuOption = MENU_OPTION_FROM_LINK (Menu.ForwardLink);
252 RemoveEntryList (&MenuOption->Link);
253
254 //
255 // We allocated space for this description when we did a GetToken, free it here
256 //
257 if (MenuOption->Skip != 0) {
258 //
259 // For date/time, MenuOption->Description is shared by three Menu Options
260 // Data format : [01/02/2004] [11:22:33]
261 // Line number : 0 0 1 0 0 1
262 //
263 gBS->FreePool (MenuOption->Description);
264 }
265 gBS->FreePool (MenuOption);
266 }
267 }
268
269
270 /**
271 Free Menu option linked list.
272
273 **/
274 VOID
275 UiFreeRefreshList (
276 VOID
277 )
278 {
279 MENU_REFRESH_ENTRY *OldMenuRefreshEntry;
280
281 while (gMenuRefreshHead != NULL) {
282 OldMenuRefreshEntry = gMenuRefreshHead->Next;
283 gBS->FreePool (gMenuRefreshHead);
284 gMenuRefreshHead = OldMenuRefreshEntry;
285 }
286
287 gMenuRefreshHead = NULL;
288 }
289
290
291
292 /**
293 Refresh screen.
294
295 **/
296 VOID
297 RefreshForm (
298 VOID
299 )
300 {
301 CHAR16 *OptionString;
302 MENU_REFRESH_ENTRY *MenuRefreshEntry;
303 UINTN Index;
304 UINTN Loop;
305 EFI_STATUS Status;
306 UI_MENU_SELECTION *Selection;
307 FORM_BROWSER_STATEMENT *Question;
308
309 OptionString = NULL;
310
311 if (gMenuRefreshHead != NULL) {
312
313 MenuRefreshEntry = gMenuRefreshHead;
314
315 do {
316 gST->ConOut->SetAttribute (gST->ConOut, MenuRefreshEntry->CurrentAttribute);
317
318 Selection = MenuRefreshEntry->Selection;
319 Question = MenuRefreshEntry->MenuOption->ThisTag;
320
321 //
322 // Don't update Question being edited
323 //
324 if (Question != MenuRefreshEntry->Selection->Statement) {
325
326 Status = GetQuestionValue (Selection->FormSet, Selection->Form, Question, FALSE);
327 if (EFI_ERROR (Status)) {
328 return;
329 }
330
331 ProcessOptions (Selection, MenuRefreshEntry->MenuOption, FALSE, &OptionString);
332
333 if (OptionString != NULL) {
334 //
335 // If leading spaces on OptionString - remove the spaces
336 //
337 for (Index = 0; OptionString[Index] == L' '; Index++)
338 ;
339
340 for (Loop = 0; OptionString[Index] != CHAR_NULL; Index++) {
341 OptionString[Loop] = OptionString[Index];
342 Loop++;
343 }
344
345 OptionString[Loop] = CHAR_NULL;
346
347 PrintStringAt (MenuRefreshEntry->CurrentColumn, MenuRefreshEntry->CurrentRow, OptionString);
348 gBS->FreePool (OptionString);
349 }
350 }
351
352 MenuRefreshEntry = MenuRefreshEntry->Next;
353
354 } while (MenuRefreshEntry != NULL);
355 }
356 }
357
358
359 /**
360 Wait for a given event to fire, or for an optional timeout to expire.
361
362 @param Event The event to wait for
363 @param Timeout An optional timeout value in 100 ns units.
364 @param RefreshInterval Menu refresh interval (in seconds).
365
366 @retval EFI_SUCCESS Event fired before Timeout expired.
367 @retval EFI_TIME_OUT Timout expired before Event fired.
368
369 **/
370 EFI_STATUS
371 UiWaitForSingleEvent (
372 IN EFI_EVENT Event,
373 IN UINT64 Timeout, OPTIONAL
374 IN UINT8 RefreshInterval OPTIONAL
375 )
376 {
377 EFI_STATUS Status;
378 UINTN Index;
379 EFI_EVENT TimerEvent;
380 EFI_EVENT WaitList[2];
381
382 if (Timeout != 0) {
383 //
384 // Create a timer event
385 //
386 Status = gBS->CreateEvent (EVT_TIMER, 0, NULL, NULL, &TimerEvent);
387 if (!EFI_ERROR (Status)) {
388 //
389 // Set the timer event
390 //
391 gBS->SetTimer (
392 TimerEvent,
393 TimerRelative,
394 Timeout
395 );
396
397 //
398 // Wait for the original event or the timer
399 //
400 WaitList[0] = Event;
401 WaitList[1] = TimerEvent;
402 Status = gBS->WaitForEvent (2, WaitList, &Index);
403 gBS->CloseEvent (TimerEvent);
404
405 //
406 // If the timer expired, change the return to timed out
407 //
408 if (!EFI_ERROR (Status) && Index == 1) {
409 Status = EFI_TIMEOUT;
410 }
411 }
412 } else {
413 //
414 // Update screen every second
415 //
416 if (RefreshInterval == 0) {
417 Timeout = ONE_SECOND;
418 } else {
419 Timeout = RefreshInterval * ONE_SECOND;
420 }
421
422 do {
423 Status = gBS->CreateEvent (EVT_TIMER, 0, NULL, NULL, &TimerEvent);
424
425 //
426 // Set the timer event
427 //
428 gBS->SetTimer (
429 TimerEvent,
430 TimerRelative,
431 Timeout
432 );
433
434 //
435 // Wait for the original event or the timer
436 //
437 WaitList[0] = Event;
438 WaitList[1] = TimerEvent;
439 Status = gBS->WaitForEvent (2, WaitList, &Index);
440
441 //
442 // If the timer expired, update anything that needs a refresh and keep waiting
443 //
444 if (!EFI_ERROR (Status) && Index == 1) {
445 Status = EFI_TIMEOUT;
446 if (RefreshInterval != 0) {
447 RefreshForm ();
448 }
449 }
450
451 gBS->CloseEvent (TimerEvent);
452 } while (Status == EFI_TIMEOUT);
453 }
454
455 return Status;
456 }
457
458
459 /**
460 Add one menu option by specified description and context.
461
462 @param String String description for this option.
463 @param Handle Hii handle for the package list.
464 @param Statement Statement of this Menu Option.
465 @param NumberOfLines Display lines for this Menu Option.
466 @param MenuItemCount The index for this Option in the Menu.
467
468 **/
469 VOID
470 UiAddMenuOption (
471 IN CHAR16 *String,
472 IN EFI_HII_HANDLE Handle,
473 IN FORM_BROWSER_STATEMENT *Statement,
474 IN UINT16 NumberOfLines,
475 IN UINT16 MenuItemCount
476 )
477 {
478 UI_MENU_OPTION *MenuOption;
479 UINTN Index;
480 UINTN Count;
481
482 Count = 1;
483
484 if (Statement->Operand == EFI_IFR_DATE_OP || Statement->Operand == EFI_IFR_TIME_OP) {
485 //
486 // Add three MenuOptions for Date/Time
487 // Data format : [01/02/2004] [11:22:33]
488 // Line number : 0 0 1 0 0 1
489 //
490 NumberOfLines = 0;
491 Count = 3;
492
493 if (Statement->Storage == NULL) {
494 //
495 // For RTC type of date/time, set default refresh interval to be 1 second
496 //
497 if (Statement->RefreshInterval == 0) {
498 Statement->RefreshInterval = 1;
499 }
500 }
501 }
502
503 for (Index = 0; Index < Count; Index++) {
504 MenuOption = AllocateZeroPool (sizeof (UI_MENU_OPTION));
505 ASSERT (MenuOption);
506
507 MenuOption->Signature = UI_MENU_OPTION_SIGNATURE;
508 MenuOption->Description = String;
509 MenuOption->Handle = Handle;
510 MenuOption->ThisTag = Statement;
511 MenuOption->EntryNumber = MenuItemCount;
512
513 if (Index == 2) {
514 //
515 // Override LineNumber for the MenuOption in Date/Time sequence
516 //
517 MenuOption->Skip = 1;
518 } else {
519 MenuOption->Skip = NumberOfLines;
520 }
521 MenuOption->Sequence = Index;
522
523 if (Statement->GrayOutExpression != NULL) {
524 MenuOption->GrayOut = Statement->GrayOutExpression->Result.Value.b;
525 }
526
527 if ((Statement->ValueExpression != NULL) ||
528 ((Statement->QuestionFlags & EFI_IFR_FLAG_READ_ONLY) != 0)) {
529 MenuOption->ReadOnly = TRUE;
530 }
531
532 InsertTailList (&Menu, &MenuOption->Link);
533 }
534 }
535
536
537 /**
538 Routine used to abstract a generic dialog interface and return the selected key or string
539
540 @param NumberOfLines The number of lines for the dialog box
541 @param HotKey Defines whether a single character is parsed
542 (TRUE) and returned in KeyValue or a string is
543 returned in StringBuffer. Two special characters
544 are considered when entering a string, a SCAN_ESC
545 and an CHAR_CARRIAGE_RETURN. SCAN_ESC terminates
546 string input and returns
547 @param MaximumStringSize The maximum size in bytes of a typed in string
548 (each character is a CHAR16) and the minimum
549 string returned is two bytes
550 @param StringBuffer The passed in pointer to the buffer which will
551 hold the typed in string if HotKey is FALSE
552 @param KeyValue The EFI_KEY value returned if HotKey is TRUE..
553 @param ... A series of (quantity == NumberOfLines) text
554 strings which will be used to construct the dialog
555 box
556
557 @retval EFI_SUCCESS Displayed dialog and received user interaction
558 @retval EFI_INVALID_PARAMETER One of the parameters was invalid (e.g.
559 (StringBuffer == NULL) && (HotKey == FALSE))
560 @retval EFI_DEVICE_ERROR User typed in an ESC character to exit the routine
561
562 **/
563 EFI_STATUS
564 CreateDialog (
565 IN UINTN NumberOfLines,
566 IN BOOLEAN HotKey,
567 IN UINTN MaximumStringSize,
568 OUT CHAR16 *StringBuffer,
569 OUT EFI_INPUT_KEY *KeyValue,
570 ...
571 )
572 {
573 VA_LIST Marker;
574 VA_LIST MarkerBackup;
575 UINTN Count;
576 EFI_INPUT_KEY Key;
577 UINTN LargestString;
578 CHAR16 *TempString;
579 CHAR16 *BufferedString;
580 CHAR16 *StackString;
581 CHAR16 KeyPad[2];
582 UINTN Start;
583 UINTN Top;
584 UINTN Index;
585 EFI_STATUS Status;
586 BOOLEAN SelectionComplete;
587 UINTN InputOffset;
588 UINTN CurrentAttribute;
589 UINTN DimensionsWidth;
590 UINTN DimensionsHeight;
591
592 DimensionsWidth = gScreenDimensions.RightColumn - gScreenDimensions.LeftColumn;
593 DimensionsHeight = gScreenDimensions.BottomRow - gScreenDimensions.TopRow;
594
595 SelectionComplete = FALSE;
596 InputOffset = 0;
597 TempString = AllocateZeroPool (MaximumStringSize * 2);
598 BufferedString = AllocateZeroPool (MaximumStringSize * 2);
599 CurrentAttribute = gST->ConOut->Mode->Attribute;
600
601 ASSERT (TempString);
602 ASSERT (BufferedString);
603
604 VA_START (Marker, KeyValue);
605 MarkerBackup = Marker;
606
607 //
608 // Zero the outgoing buffer
609 //
610 ZeroMem (StringBuffer, MaximumStringSize);
611
612 if (HotKey) {
613 if (KeyValue == NULL) {
614 return EFI_INVALID_PARAMETER;
615 }
616 } else {
617 if (StringBuffer == NULL) {
618 return EFI_INVALID_PARAMETER;
619 }
620 }
621 //
622 // Disable cursor
623 //
624 gST->ConOut->EnableCursor (gST->ConOut, FALSE);
625
626 LargestString = 0;
627
628 //
629 // Determine the largest string in the dialog box
630 // Notice we are starting with 1 since String is the first string
631 //
632 for (Count = 0; Count < NumberOfLines; Count++) {
633 StackString = VA_ARG (Marker, CHAR16 *);
634
635 if (StackString[0] == L' ') {
636 InputOffset = Count + 1;
637 }
638
639 if ((GetStringWidth (StackString) / 2) > LargestString) {
640 //
641 // Size of the string visually and subtract the width by one for the null-terminator
642 //
643 LargestString = (GetStringWidth (StackString) / 2);
644 }
645 }
646
647 Start = (DimensionsWidth - LargestString - 2) / 2 + gScreenDimensions.LeftColumn + 1;
648 Top = ((DimensionsHeight - NumberOfLines - 2) / 2) + gScreenDimensions.TopRow - 1;
649
650 Count = 0;
651
652 //
653 // Display the Popup
654 //
655 CreateSharedPopUp (LargestString, NumberOfLines, MarkerBackup);
656
657 //
658 // Take the first key typed and report it back?
659 //
660 if (HotKey) {
661 Status = WaitForKeyStroke (&Key);
662 ASSERT_EFI_ERROR (Status);
663 CopyMem (KeyValue, &Key, sizeof (EFI_INPUT_KEY));
664
665 } else {
666 do {
667 Status = WaitForKeyStroke (&Key);
668
669 switch (Key.UnicodeChar) {
670 case CHAR_NULL:
671 switch (Key.ScanCode) {
672 case SCAN_ESC:
673 gBS->FreePool (TempString);
674 gBS->FreePool (BufferedString);
675 gST->ConOut->SetAttribute (gST->ConOut, CurrentAttribute);
676 gST->ConOut->EnableCursor (gST->ConOut, TRUE);
677 return EFI_DEVICE_ERROR;
678
679 default:
680 break;
681 }
682
683 break;
684
685 case CHAR_CARRIAGE_RETURN:
686 SelectionComplete = TRUE;
687 gBS->FreePool (TempString);
688 gBS->FreePool (BufferedString);
689 gST->ConOut->SetAttribute (gST->ConOut, CurrentAttribute);
690 gST->ConOut->EnableCursor (gST->ConOut, TRUE);
691 return EFI_SUCCESS;
692 break;
693
694 case CHAR_BACKSPACE:
695 if (StringBuffer[0] != CHAR_NULL) {
696 for (Index = 0; StringBuffer[Index] != CHAR_NULL; Index++) {
697 TempString[Index] = StringBuffer[Index];
698 }
699 //
700 // Effectively truncate string by 1 character
701 //
702 TempString[Index - 1] = CHAR_NULL;
703 StrCpy (StringBuffer, TempString);
704 }
705
706 default:
707 //
708 // If it is the beginning of the string, don't worry about checking maximum limits
709 //
710 if ((StringBuffer[0] == CHAR_NULL) && (Key.UnicodeChar != CHAR_BACKSPACE)) {
711 StrnCpy (StringBuffer, &Key.UnicodeChar, 1);
712 StrnCpy (TempString, &Key.UnicodeChar, 1);
713 } else if ((GetStringWidth (StringBuffer) < MaximumStringSize) && (Key.UnicodeChar != CHAR_BACKSPACE)) {
714 KeyPad[0] = Key.UnicodeChar;
715 KeyPad[1] = CHAR_NULL;
716 StrCat (StringBuffer, KeyPad);
717 StrCat (TempString, KeyPad);
718 }
719 //
720 // If the width of the input string is now larger than the screen, we nee to
721 // adjust the index to start printing portions of the string
722 //
723 SetUnicodeMem (BufferedString, LargestString, L' ');
724
725 PrintStringAt (Start + 1, Top + InputOffset, BufferedString);
726
727 if ((GetStringWidth (StringBuffer) / 2) > (DimensionsWidth - 2)) {
728 Index = (GetStringWidth (StringBuffer) / 2) - DimensionsWidth + 2;
729 } else {
730 Index = 0;
731 }
732
733 for (Count = 0; Index + 1 < GetStringWidth (StringBuffer) / 2; Index++, Count++) {
734 BufferedString[Count] = StringBuffer[Index];
735 }
736
737 PrintStringAt (Start + 1, Top + InputOffset, BufferedString);
738 break;
739 }
740 } while (!SelectionComplete);
741 }
742
743 gST->ConOut->SetAttribute (gST->ConOut, CurrentAttribute);
744 gST->ConOut->EnableCursor (gST->ConOut, TRUE);
745 return EFI_SUCCESS;
746 }
747
748 /**
749 Draw a pop up windows based on the dimension, number of lines and
750 strings specified.
751
752 @param RequestedWidth The width of the pop-up.
753 @param NumberOfLines The number of lines.
754 @param Marker The variable argument list for the list of string to be printed.
755
756 **/
757 VOID
758 CreateSharedPopUp (
759 IN UINTN RequestedWidth,
760 IN UINTN NumberOfLines,
761 IN VA_LIST Marker
762 )
763 {
764 UINTN Index;
765 UINTN Count;
766 CHAR16 Character;
767 UINTN Start;
768 UINTN End;
769 UINTN Top;
770 UINTN Bottom;
771 CHAR16 *String;
772 UINTN DimensionsWidth;
773 UINTN DimensionsHeight;
774
775 DimensionsWidth = gScreenDimensions.RightColumn - gScreenDimensions.LeftColumn;
776 DimensionsHeight = gScreenDimensions.BottomRow - gScreenDimensions.TopRow;
777
778 gST->ConOut->SetAttribute (gST->ConOut, POPUP_TEXT | POPUP_BACKGROUND);
779
780 if ((RequestedWidth + 2) > DimensionsWidth) {
781 RequestedWidth = DimensionsWidth - 2;
782 }
783
784 //
785 // Subtract the PopUp width from total Columns, allow for one space extra on
786 // each end plus a border.
787 //
788 Start = (DimensionsWidth - RequestedWidth - 2) / 2 + gScreenDimensions.LeftColumn + 1;
789 End = Start + RequestedWidth + 1;
790
791 Top = ((DimensionsHeight - NumberOfLines - 2) / 2) + gScreenDimensions.TopRow - 1;
792 Bottom = Top + NumberOfLines + 2;
793
794 Character = BOXDRAW_DOWN_RIGHT;
795 PrintCharAt (Start, Top, Character);
796 Character = BOXDRAW_HORIZONTAL;
797 for (Index = Start; Index + 2 < End; Index++) {
798 PrintChar (Character);
799 }
800
801 Character = BOXDRAW_DOWN_LEFT;
802 PrintChar (Character);
803 Character = BOXDRAW_VERTICAL;
804
805 Count = 0;
806 for (Index = Top; Index + 2 < Bottom; Index++, Count++) {
807 String = VA_ARG (Marker, CHAR16*);
808
809 //
810 // This will clear the background of the line - we never know who might have been
811 // here before us. This differs from the next clear in that it used the non-reverse
812 // video for normal printing.
813 //
814 if (GetStringWidth (String) / 2 > 1) {
815 ClearLines (Start, End, Index + 1, Index + 1, POPUP_TEXT | POPUP_BACKGROUND);
816 }
817
818 //
819 // Passing in a space results in the assumption that this is where typing will occur
820 //
821 if (String[0] == L' ') {
822 ClearLines (Start + 1, End - 1, Index + 1, Index + 1, POPUP_INVERSE_TEXT | POPUP_INVERSE_BACKGROUND);
823 }
824
825 //
826 // Passing in a NULL results in a blank space
827 //
828 if (String[0] == CHAR_NULL) {
829 ClearLines (Start, End, Index + 1, Index + 1, POPUP_TEXT | POPUP_BACKGROUND);
830 }
831
832 PrintStringAt (
833 ((DimensionsWidth - GetStringWidth (String) / 2) / 2) + gScreenDimensions.LeftColumn + 1,
834 Index + 1,
835 String
836 );
837 gST->ConOut->SetAttribute (gST->ConOut, POPUP_TEXT | POPUP_BACKGROUND);
838 PrintCharAt (Start, Index + 1, Character);
839 PrintCharAt (End - 1, Index + 1, Character);
840 }
841
842 Character = BOXDRAW_UP_RIGHT;
843 PrintCharAt (Start, Bottom - 1, Character);
844 Character = BOXDRAW_HORIZONTAL;
845 for (Index = Start; Index + 2 < End; Index++) {
846 PrintChar (Character);
847 }
848
849 Character = BOXDRAW_UP_LEFT;
850 PrintChar (Character);
851 }
852
853 /**
854 Draw a pop up windows based on the dimension, number of lines and
855 strings specified.
856
857 @param RequestedWidth The width of the pop-up.
858 @param NumberOfLines The number of lines.
859 @param ... A series of text strings that displayed in the pop-up.
860
861 **/
862 VOID
863 CreatePopUp (
864 IN UINTN RequestedWidth,
865 IN UINTN NumberOfLines,
866 ...
867 )
868 {
869 VA_LIST Marker;
870
871 VA_START (Marker, NumberOfLines);
872
873 CreateSharedPopUp (RequestedWidth, NumberOfLines, Marker);
874
875 VA_END (Marker);
876 }
877
878
879 /**
880 Update status bar on the bottom of menu.
881
882 @param MessageType The type of message to be shown.
883 @param Flags The flags in Question header.
884 @param State Set or clear.
885
886 **/
887 VOID
888 UpdateStatusBar (
889 IN UINTN MessageType,
890 IN UINT8 Flags,
891 IN BOOLEAN State
892 )
893 {
894 UINTN Index;
895 STATIC BOOLEAN InputError;
896 CHAR16 *NvUpdateMessage;
897 CHAR16 *InputErrorMessage;
898
899 NvUpdateMessage = GetToken (STRING_TOKEN (NV_UPDATE_MESSAGE), gHiiHandle);
900 InputErrorMessage = GetToken (STRING_TOKEN (INPUT_ERROR_MESSAGE), gHiiHandle);
901
902 switch (MessageType) {
903 case INPUT_ERROR:
904 if (State) {
905 gST->ConOut->SetAttribute (gST->ConOut, ERROR_TEXT);
906 PrintStringAt (
907 gScreenDimensions.LeftColumn + gPromptBlockWidth,
908 gScreenDimensions.BottomRow - 1,
909 InputErrorMessage
910 );
911 InputError = TRUE;
912 } else {
913 gST->ConOut->SetAttribute (gST->ConOut, FIELD_TEXT_HIGHLIGHT);
914 for (Index = 0; Index < (GetStringWidth (InputErrorMessage) - 2) / 2; Index++) {
915 PrintAt (gScreenDimensions.LeftColumn + gPromptBlockWidth + Index, gScreenDimensions.BottomRow - 1, L" ");
916 }
917
918 InputError = FALSE;
919 }
920 break;
921
922 case NV_UPDATE_REQUIRED:
923 if (gClassOfVfr != EFI_FRONT_PAGE_SUBCLASS) {
924 if (State) {
925 gST->ConOut->SetAttribute (gST->ConOut, INFO_TEXT);
926 PrintStringAt (
927 gScreenDimensions.LeftColumn + gPromptBlockWidth + gOptionBlockWidth,
928 gScreenDimensions.BottomRow - 1,
929 NvUpdateMessage
930 );
931 gResetRequired = (BOOLEAN) (gResetRequired | ((Flags & EFI_IFR_FLAG_RESET_REQUIRED) == EFI_IFR_FLAG_RESET_REQUIRED));
932
933 gNvUpdateRequired = TRUE;
934 } else {
935 gST->ConOut->SetAttribute (gST->ConOut, FIELD_TEXT_HIGHLIGHT);
936 for (Index = 0; Index < (GetStringWidth (NvUpdateMessage) - 2) / 2; Index++) {
937 PrintAt (
938 (gScreenDimensions.LeftColumn + gPromptBlockWidth + gOptionBlockWidth + Index),
939 gScreenDimensions.BottomRow - 1,
940 L" "
941 );
942 }
943
944 gNvUpdateRequired = FALSE;
945 }
946 }
947 break;
948
949 case REFRESH_STATUS_BAR:
950 if (InputError) {
951 UpdateStatusBar (INPUT_ERROR, Flags, TRUE);
952 }
953
954 if (gNvUpdateRequired) {
955 UpdateStatusBar (NV_UPDATE_REQUIRED, Flags, TRUE);
956 }
957 break;
958
959 default:
960 break;
961 }
962
963 gBS->FreePool (InputErrorMessage);
964 gBS->FreePool (NvUpdateMessage);
965 return ;
966 }
967
968
969 /**
970 Get the supported width for a particular op-code
971
972 @param Statement The FORM_BROWSER_STATEMENT structure passed in.
973 @param Handle The handle in the HII database being used
974
975 @return Returns the number of CHAR16 characters that is support.
976
977 **/
978 UINT16
979 GetWidth (
980 IN FORM_BROWSER_STATEMENT *Statement,
981 IN EFI_HII_HANDLE Handle
982 )
983 {
984 CHAR16 *String;
985 UINTN Size;
986 UINT16 Width;
987
988 Size = 0;
989
990 //
991 // See if the second text parameter is really NULL
992 //
993 if ((Statement->Operand == EFI_IFR_TEXT_OP) && (Statement->TextTwo != 0)) {
994 String = GetToken (Statement->TextTwo, Handle);
995 Size = StrLen (String);
996 gBS->FreePool (String);
997 }
998
999 if ((Statement->Operand == EFI_IFR_SUBTITLE_OP) ||
1000 (Statement->Operand == EFI_IFR_REF_OP) ||
1001 (Statement->Operand == EFI_IFR_PASSWORD_OP) ||
1002 (Statement->Operand == EFI_IFR_ACTION_OP) ||
1003 (Statement->Operand == EFI_IFR_RESET_BUTTON_OP) ||
1004 //
1005 // Allow a wide display if text op-code and no secondary text op-code
1006 //
1007 ((Statement->Operand == EFI_IFR_TEXT_OP) && (Size == 0))
1008 ) {
1009 Width = (UINT16) (gPromptBlockWidth + gOptionBlockWidth);
1010 } else {
1011 Width = (UINT16) gPromptBlockWidth;
1012 }
1013
1014 if (Statement->InSubtitle) {
1015 Width -= SUBTITLE_INDENT;
1016 }
1017
1018 return Width;
1019 }
1020
1021
1022 BOOLEAN GetLineByWidthFinished = FALSE;
1023
1024 /**
1025 Will copy LineWidth amount of a string in the OutputString buffer and return the
1026 number of CHAR16 characters that were copied into the OutputString buffer.
1027
1028 @param InputString String description for this option.
1029 @param LineWidth Width of the desired string to extract in CHAR16
1030 characters
1031 @param Index Where in InputString to start the copy process
1032 @param OutputString Buffer to copy the string into
1033
1034 @return Returns the number of CHAR16 characters that were copied into the OutputString buffer.
1035
1036 **/
1037 UINT16
1038 GetLineByWidth (
1039 IN CHAR16 *InputString,
1040 IN UINT16 LineWidth,
1041 IN OUT UINTN *Index,
1042 OUT CHAR16 **OutputString
1043 )
1044 {
1045 UINT16 Count;
1046 UINT16 Count2;
1047
1048 if (GetLineByWidthFinished) {
1049 GetLineByWidthFinished = FALSE;
1050 return (UINT16) 0;
1051 }
1052
1053 Count = LineWidth;
1054 Count2 = 0;
1055
1056 *OutputString = AllocateZeroPool (((UINTN) (LineWidth + 1) * 2));
1057
1058 //
1059 // Ensure we have got a valid buffer
1060 //
1061 if (*OutputString != NULL) {
1062
1063 //
1064 //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.
1065 //To avoid displaying this empty line in screen, just skip the two CHARs here.
1066 //
1067 if ((InputString[*Index] == NARROW_CHAR) && (InputString[*Index + 1] == CHAR_CARRIAGE_RETURN)) {
1068 *Index = *Index + 2;
1069 }
1070
1071 //
1072 // Fast-forward the string and see if there is a carriage-return in the string
1073 //
1074 for (; (InputString[*Index + Count2] != CHAR_CARRIAGE_RETURN) && (Count2 != LineWidth); Count2++)
1075 ;
1076
1077 //
1078 // Copy the desired LineWidth of data to the output buffer.
1079 // Also make sure that we don't copy more than the string.
1080 // Also make sure that if there are linefeeds, we account for them.
1081 //
1082 if ((StrSize (&InputString[*Index]) <= ((UINTN) (LineWidth + 1) * 2)) &&
1083 (StrSize (&InputString[*Index]) <= ((UINTN) (Count2 + 1) * 2))
1084 ) {
1085 //
1086 // Convert to CHAR16 value and show that we are done with this operation
1087 //
1088 LineWidth = (UINT16) ((StrSize (&InputString[*Index]) - 2) / 2);
1089 if (LineWidth != 0) {
1090 GetLineByWidthFinished = TRUE;
1091 }
1092 } else {
1093 if (Count2 == LineWidth) {
1094 //
1095 // Rewind the string from the maximum size until we see a space to break the line
1096 //
1097 for (; (InputString[*Index + LineWidth] != CHAR_SPACE) && (LineWidth != 0); LineWidth--)
1098 ;
1099 if (LineWidth == 0) {
1100 LineWidth = Count;
1101 }
1102 } else {
1103 LineWidth = Count2;
1104 }
1105 }
1106
1107 CopyMem (*OutputString, &InputString[*Index], LineWidth * 2);
1108
1109 //
1110 // If currently pointing to a space, increment the index to the first non-space character
1111 //
1112 for (;
1113 (InputString[*Index + LineWidth] == CHAR_SPACE) || (InputString[*Index + LineWidth] == CHAR_CARRIAGE_RETURN);
1114 (*Index)++
1115 )
1116 ;
1117 *Index = (UINT16) (*Index + LineWidth);
1118 return LineWidth;
1119 } else {
1120 return (UINT16) 0;
1121 }
1122 }
1123
1124
1125 /**
1126 Update display lines for a Menu Option.
1127
1128 @param Selection The user's selection.
1129 @param MenuOption The MenuOption to be checked.
1130 @param OptionalString The option string.
1131 @param SkipValue The number of lins to skip.
1132
1133 **/
1134 VOID
1135 UpdateOptionSkipLines (
1136 IN UI_MENU_SELECTION *Selection,
1137 IN UI_MENU_OPTION *MenuOption,
1138 OUT CHAR16 **OptionalString,
1139 IN UINTN SkipValue
1140 )
1141 {
1142 UINTN Index;
1143 UINT16 Width;
1144 UINTN Row;
1145 UINTN OriginalRow;
1146 CHAR16 *OutputString;
1147 CHAR16 *OptionString;
1148
1149 Row = 0;
1150 OptionString = *OptionalString;
1151 OutputString = NULL;
1152
1153 ProcessOptions (Selection, MenuOption, FALSE, &OptionString);
1154
1155 if (OptionString != NULL) {
1156 Width = (UINT16) gOptionBlockWidth;
1157
1158 OriginalRow = Row;
1159
1160 for (Index = 0; GetLineByWidth (OptionString, Width, &Index, &OutputString) != 0x0000;) {
1161 //
1162 // If there is more string to process print on the next row and increment the Skip value
1163 //
1164 if (StrLen (&OptionString[Index])) {
1165 if (SkipValue == 0) {
1166 Row++;
1167 //
1168 // Since the Number of lines for this menu entry may or may not be reflected accurately
1169 // since the prompt might be 1 lines and option might be many, and vice versa, we need to do
1170 // some testing to ensure we are keeping this in-sync.
1171 //
1172 // If the difference in rows is greater than or equal to the skip value, increase the skip value
1173 //
1174 if ((Row - OriginalRow) >= MenuOption->Skip) {
1175 MenuOption->Skip++;
1176 }
1177 }
1178 }
1179
1180 gBS->FreePool (OutputString);
1181 if (SkipValue != 0) {
1182 SkipValue--;
1183 }
1184 }
1185
1186 Row = OriginalRow;
1187 }
1188
1189 *OptionalString = OptionString;
1190 }
1191
1192
1193 /**
1194 Check whether this Menu Option could be highlighted.
1195
1196 This is an internal function.
1197
1198 @param MenuOption The MenuOption to be checked.
1199
1200 @retval TRUE This Menu Option is selectable.
1201 @retval FALSE This Menu Option could not be selected.
1202
1203 **/
1204 BOOLEAN
1205 IsSelectable (
1206 UI_MENU_OPTION *MenuOption
1207 )
1208 {
1209 if ((MenuOption->ThisTag->Operand == EFI_IFR_SUBTITLE_OP) ||
1210 MenuOption->GrayOut || MenuOption->ReadOnly) {
1211 return FALSE;
1212 } else {
1213 return TRUE;
1214 }
1215 }
1216
1217
1218 /**
1219 Determine if the menu is the last menu that can be selected.
1220
1221 This is an internal function.
1222
1223 @param Direction The scroll direction. False is down. True is up.
1224 @param CurrentPos The current focus.
1225
1226 @return FALSE -- the menu isn't the last menu that can be selected.
1227 @return TRUE -- the menu is the last menu that can be selected.
1228
1229 **/
1230 BOOLEAN
1231 ValueIsScroll (
1232 IN BOOLEAN Direction,
1233 IN LIST_ENTRY *CurrentPos
1234 )
1235 {
1236 LIST_ENTRY *Temp;
1237 UI_MENU_OPTION *MenuOption;
1238
1239 Temp = Direction ? CurrentPos->BackLink : CurrentPos->ForwardLink;
1240
1241 if (Temp == &Menu) {
1242 return TRUE;
1243 }
1244
1245 for (; Temp != &Menu; Temp = Direction ? Temp->BackLink : Temp->ForwardLink) {
1246 MenuOption = MENU_OPTION_FROM_LINK (Temp);
1247 if (IsSelectable (MenuOption)) {
1248 return FALSE;
1249 }
1250 }
1251
1252 return TRUE;
1253 }
1254
1255
1256 /**
1257 Move to next selectable statement.
1258
1259 This is an internal function.
1260
1261 @param GoUp The navigation direction. TRUE: up, FALSE: down.
1262 @param CurrentPosition Current position.
1263
1264 @return The row distance from current MenuOption to next selectable MenuOption.
1265
1266 **/
1267 INTN
1268 MoveToNextStatement (
1269 IN BOOLEAN GoUp,
1270 IN OUT LIST_ENTRY **CurrentPosition
1271 )
1272 {
1273 INTN Distance;
1274 LIST_ENTRY *Pos;
1275 BOOLEAN HitEnd;
1276 UI_MENU_OPTION *NextMenuOption;
1277
1278 Distance = 0;
1279 Pos = *CurrentPosition;
1280 HitEnd = FALSE;
1281
1282 while (TRUE) {
1283 NextMenuOption = MENU_OPTION_FROM_LINK (Pos);
1284 if (IsSelectable (NextMenuOption)) {
1285 break;
1286 }
1287 if ((GoUp ? Pos->BackLink : Pos->ForwardLink) == &Menu) {
1288 HitEnd = TRUE;
1289 break;
1290 }
1291 Distance += NextMenuOption->Skip;
1292 Pos = (GoUp ? Pos->BackLink : Pos->ForwardLink);
1293 }
1294
1295 if (HitEnd) {
1296 //
1297 // If we hit end there is still no statement can be focused,
1298 // we go backwards to find the statement can be focused.
1299 //
1300 Distance = 0;
1301 Pos = *CurrentPosition;
1302
1303 while (TRUE) {
1304 NextMenuOption = MENU_OPTION_FROM_LINK (Pos);
1305 if (IsSelectable (NextMenuOption)) {
1306 break;
1307 }
1308 if ((!GoUp ? Pos->BackLink : Pos->ForwardLink) == &Menu) {
1309 ASSERT (FALSE);
1310 break;
1311 }
1312 Distance -= NextMenuOption->Skip;
1313 Pos = (!GoUp ? Pos->BackLink : Pos->ForwardLink);
1314 }
1315 }
1316
1317 *CurrentPosition = &NextMenuOption->Link;
1318 return Distance;
1319 }
1320
1321
1322 /**
1323 Adjust Data and Time position accordingly.
1324 Data format : [01/02/2004] [11:22:33]
1325 Line number : 0 0 1 0 0 1
1326
1327 This is an internal function.
1328
1329 @param DirectionUp the up or down direction. False is down. True is
1330 up.
1331 @param CurrentPosition Current position. On return: Point to the last
1332 Option (Year or Second) if up; Point to the first
1333 Option (Month or Hour) if down.
1334
1335 @return Return line number to pad. It is possible that we stand on a zero-advance
1336 @return data or time opcode, so pad one line when we judge if we are going to scroll outside.
1337
1338 **/
1339 UINTN
1340 AdjustDateAndTimePosition (
1341 IN BOOLEAN DirectionUp,
1342 IN OUT LIST_ENTRY **CurrentPosition
1343 )
1344 {
1345 UINTN Count;
1346 LIST_ENTRY *NewPosition;
1347 UI_MENU_OPTION *MenuOption;
1348 UINTN PadLineNumber;
1349
1350 PadLineNumber = 0;
1351 NewPosition = *CurrentPosition;
1352 MenuOption = MENU_OPTION_FROM_LINK (NewPosition);
1353
1354 if ((MenuOption->ThisTag->Operand == EFI_IFR_DATE_OP) ||
1355 (MenuOption->ThisTag->Operand == EFI_IFR_TIME_OP)) {
1356 //
1357 // Calculate the distance from current position to the last Date/Time MenuOption
1358 //
1359 Count = 0;
1360 while (MenuOption->Skip == 0) {
1361 Count++;
1362 NewPosition = NewPosition->ForwardLink;
1363 MenuOption = MENU_OPTION_FROM_LINK (NewPosition);
1364 PadLineNumber = 1;
1365 }
1366
1367 NewPosition = *CurrentPosition;
1368 if (DirectionUp) {
1369 //
1370 // Since the behavior of hitting the up arrow on a Date/Time MenuOption is intended
1371 // to be one that back to the previous set of MenuOptions, we need to advance to the first
1372 // Date/Time MenuOption and leave the remaining logic in CfUiUp intact so the appropriate
1373 // checking can be done.
1374 //
1375 while (Count++ < 2) {
1376 NewPosition = NewPosition->BackLink;
1377 }
1378 } else {
1379 //
1380 // Since the behavior of hitting the down arrow on a Date/Time MenuOption is intended
1381 // to be one that progresses to the next set of MenuOptions, we need to advance to the last
1382 // Date/Time MenuOption and leave the remaining logic in CfUiDown intact so the appropriate
1383 // checking can be done.
1384 //
1385 while (Count-- > 0) {
1386 NewPosition = NewPosition->ForwardLink;
1387 }
1388 }
1389
1390 *CurrentPosition = NewPosition;
1391 }
1392
1393 return PadLineNumber;
1394 }
1395
1396
1397 /**
1398 Display menu and wait for user to select one menu option, then return it.
1399 If AutoBoot is enabled, then if user doesn't select any option,
1400 after period of time, it will automatically return the first menu option.
1401
1402 @param Selection Menu selection.
1403
1404 @retval EFI_SUCESSS This function always return successfully for now.
1405
1406 **/
1407 EFI_STATUS
1408 UiDisplayMenu (
1409 IN OUT UI_MENU_SELECTION *Selection
1410 )
1411 {
1412 INTN SkipValue;
1413 INTN Difference;
1414 INTN OldSkipValue;
1415 UINTN DistanceValue;
1416 UINTN Row;
1417 UINTN Col;
1418 UINTN Temp;
1419 UINTN Temp2;
1420 UINTN TopRow;
1421 UINTN BottomRow;
1422 UINTN OriginalRow;
1423 UINTN Index;
1424 UINT32 Count;
1425 UINT16 Width;
1426 CHAR16 *StringPtr;
1427 CHAR16 *OptionString;
1428 CHAR16 *OutputString;
1429 CHAR16 *FormattedString;
1430 CHAR16 YesResponse;
1431 CHAR16 NoResponse;
1432 BOOLEAN NewLine;
1433 BOOLEAN Repaint;
1434 BOOLEAN SavedValue;
1435 EFI_STATUS Status;
1436 EFI_INPUT_KEY Key;
1437 LIST_ENTRY *Link;
1438 LIST_ENTRY *NewPos;
1439 LIST_ENTRY *TopOfScreen;
1440 LIST_ENTRY *SavedListEntry;
1441 UI_MENU_OPTION *MenuOption;
1442 UI_MENU_OPTION *NextMenuOption;
1443 UI_MENU_OPTION *SavedMenuOption;
1444 UI_MENU_OPTION *PreviousMenuOption;
1445 UI_CONTROL_FLAG ControlFlag;
1446 EFI_SCREEN_DESCRIPTOR LocalScreen;
1447 MENU_REFRESH_ENTRY *MenuRefreshEntry;
1448 UI_SCREEN_OPERATION ScreenOperation;
1449 UINT8 MinRefreshInterval;
1450 UINTN BufferSize;
1451 UINT16 DefaultId;
1452 EFI_DEVICE_PATH_PROTOCOL *DevicePath;
1453 FORM_BROWSER_STATEMENT *Statement;
1454
1455 CopyMem (&LocalScreen, &gScreenDimensions, sizeof (EFI_SCREEN_DESCRIPTOR));
1456
1457 Status = EFI_SUCCESS;
1458 FormattedString = NULL;
1459 OptionString = NULL;
1460 ScreenOperation = UiNoOperation;
1461 NewLine = TRUE;
1462 MinRefreshInterval = 0;
1463 DefaultId = 0;
1464
1465 OutputString = NULL;
1466 gUpArrow = FALSE;
1467 gDownArrow = FALSE;
1468 SkipValue = 0;
1469 OldSkipValue = 0;
1470 MenuRefreshEntry = gMenuRefreshHead;
1471
1472 NextMenuOption = NULL;
1473 PreviousMenuOption = NULL;
1474 SavedMenuOption = NULL;
1475
1476 ZeroMem (&Key, sizeof (EFI_INPUT_KEY));
1477
1478 if (gClassOfVfr == EFI_FRONT_PAGE_SUBCLASS) {
1479 TopRow = LocalScreen.TopRow + FRONT_PAGE_HEADER_HEIGHT + SCROLL_ARROW_HEIGHT;
1480 Row = LocalScreen.TopRow + FRONT_PAGE_HEADER_HEIGHT + SCROLL_ARROW_HEIGHT;
1481 } else {
1482 TopRow = LocalScreen.TopRow + NONE_FRONT_PAGE_HEADER_HEIGHT + SCROLL_ARROW_HEIGHT;
1483 Row = LocalScreen.TopRow + NONE_FRONT_PAGE_HEADER_HEIGHT + SCROLL_ARROW_HEIGHT;
1484 }
1485
1486 Col = LocalScreen.LeftColumn;
1487 BottomRow = LocalScreen.BottomRow - STATUS_BAR_HEIGHT - FOOTER_HEIGHT - SCROLL_ARROW_HEIGHT - 1;
1488
1489 Selection->TopRow = TopRow;
1490 Selection->BottomRow = BottomRow;
1491 Selection->PromptCol = Col;
1492 Selection->OptionCol = gPromptBlockWidth + 1 + LocalScreen.LeftColumn;
1493 Selection->Statement = NULL;
1494
1495 TopOfScreen = Menu.ForwardLink;
1496 Repaint = TRUE;
1497 MenuOption = NULL;
1498
1499 //
1500 // Get user's selection
1501 //
1502 NewPos = Menu.ForwardLink;
1503
1504 gST->ConOut->EnableCursor (gST->ConOut, FALSE);
1505 UpdateStatusBar (REFRESH_STATUS_BAR, (UINT8) 0, TRUE);
1506
1507 ControlFlag = CfInitialization;
1508 Selection->Action = UI_ACTION_NONE;
1509 while (TRUE) {
1510 switch (ControlFlag) {
1511 case CfInitialization:
1512 if (IsListEmpty (&Menu)) {
1513 ControlFlag = CfReadKey;
1514 } else {
1515 ControlFlag = CfCheckSelection;
1516 }
1517 break;
1518
1519 case CfCheckSelection:
1520 if (Selection->Action != UI_ACTION_NONE) {
1521 ControlFlag = CfExit;
1522 } else {
1523 ControlFlag = CfRepaint;
1524 }
1525 break;
1526
1527 case CfRepaint:
1528 ControlFlag = CfRefreshHighLight;
1529
1530 if (Repaint) {
1531 //
1532 // Display menu
1533 //
1534 gDownArrow = FALSE;
1535 gUpArrow = FALSE;
1536 Row = TopRow;
1537
1538 Temp = SkipValue;
1539 Temp2 = SkipValue;
1540
1541 ClearLines (
1542 LocalScreen.LeftColumn,
1543 LocalScreen.RightColumn,
1544 TopRow - SCROLL_ARROW_HEIGHT,
1545 BottomRow + SCROLL_ARROW_HEIGHT,
1546 FIELD_TEXT | FIELD_BACKGROUND
1547 );
1548
1549 UiFreeRefreshList ();
1550 MinRefreshInterval = 0;
1551
1552 for (Link = TopOfScreen; Link != &Menu; Link = Link->ForwardLink) {
1553 MenuOption = MENU_OPTION_FROM_LINK (Link);
1554 MenuOption->Row = Row;
1555 MenuOption->Col = Col;
1556 MenuOption->OptCol = gPromptBlockWidth + 1 + LocalScreen.LeftColumn;
1557
1558 Statement = MenuOption->ThisTag;
1559 if (Statement->InSubtitle) {
1560 MenuOption->Col += SUBTITLE_INDENT;
1561 }
1562
1563 if (MenuOption->GrayOut) {
1564 gST->ConOut->SetAttribute (gST->ConOut, FIELD_TEXT_GRAYED | FIELD_BACKGROUND);
1565 } else {
1566 if (Statement->Operand == EFI_IFR_SUBTITLE_OP) {
1567 gST->ConOut->SetAttribute (gST->ConOut, SUBTITLE_TEXT | FIELD_BACKGROUND);
1568 }
1569 }
1570
1571 Width = GetWidth (Statement, MenuOption->Handle);
1572 OriginalRow = Row;
1573
1574 for (Index = 0; GetLineByWidth (MenuOption->Description, Width, &Index, &OutputString) != 0x0000;) {
1575 if ((Temp == 0) && (Row <= BottomRow)) {
1576 PrintStringAt (MenuOption->Col, Row, OutputString);
1577 }
1578 //
1579 // If there is more string to process print on the next row and increment the Skip value
1580 //
1581 if (StrLen (&MenuOption->Description[Index])) {
1582 if (Temp == 0) {
1583 Row++;
1584 }
1585 }
1586
1587 gBS->FreePool (OutputString);
1588 if (Temp != 0) {
1589 Temp--;
1590 }
1591 }
1592
1593 Temp = 0;
1594 Row = OriginalRow;
1595
1596 gST->ConOut->SetAttribute (gST->ConOut, FIELD_TEXT | FIELD_BACKGROUND);
1597 ProcessOptions (Selection, MenuOption, FALSE, &OptionString);
1598
1599 if (OptionString != NULL) {
1600 if (Statement->Operand == EFI_IFR_DATE_OP || Statement->Operand == EFI_IFR_TIME_OP) {
1601 //
1602 // If leading spaces on OptionString - remove the spaces
1603 //
1604 for (Index = 0; OptionString[Index] == L' '; Index++) {
1605 MenuOption->OptCol++;
1606 }
1607
1608 for (Count = 0; OptionString[Index] != CHAR_NULL; Index++) {
1609 OptionString[Count] = OptionString[Index];
1610 Count++;
1611 }
1612
1613 OptionString[Count] = CHAR_NULL;
1614 }
1615
1616 //
1617 // If Question request refresh, register the op-code
1618 //
1619 if (Statement->RefreshInterval != 0) {
1620 //
1621 // Menu will be refreshed at minimal interval of all Questions
1622 // which have refresh request
1623 //
1624 if (MinRefreshInterval == 0 || Statement->RefreshInterval < MinRefreshInterval) {
1625 MinRefreshInterval = Statement->RefreshInterval;
1626 }
1627
1628 if (gMenuRefreshHead == NULL) {
1629 MenuRefreshEntry = AllocateZeroPool (sizeof (MENU_REFRESH_ENTRY));
1630 ASSERT (MenuRefreshEntry != NULL);
1631 MenuRefreshEntry->MenuOption = MenuOption;
1632 MenuRefreshEntry->Selection = Selection;
1633 MenuRefreshEntry->CurrentColumn = MenuOption->OptCol;
1634 MenuRefreshEntry->CurrentRow = MenuOption->Row;
1635 MenuRefreshEntry->CurrentAttribute = FIELD_TEXT | FIELD_BACKGROUND;
1636 gMenuRefreshHead = MenuRefreshEntry;
1637 } else {
1638 //
1639 // Advance to the last entry
1640 //
1641 for (MenuRefreshEntry = gMenuRefreshHead;
1642 MenuRefreshEntry->Next != NULL;
1643 MenuRefreshEntry = MenuRefreshEntry->Next
1644 )
1645 ;
1646 MenuRefreshEntry->Next = AllocateZeroPool (sizeof (MENU_REFRESH_ENTRY));
1647 ASSERT (MenuRefreshEntry->Next != NULL);
1648 MenuRefreshEntry = MenuRefreshEntry->Next;
1649 MenuRefreshEntry->MenuOption = MenuOption;
1650 MenuRefreshEntry->Selection = Selection;
1651 MenuRefreshEntry->CurrentColumn = MenuOption->OptCol;
1652 MenuRefreshEntry->CurrentRow = MenuOption->Row;
1653 MenuRefreshEntry->CurrentAttribute = FIELD_TEXT | FIELD_BACKGROUND;
1654 }
1655 }
1656
1657 Width = (UINT16) gOptionBlockWidth;
1658 OriginalRow = Row;
1659
1660 for (Index = 0; GetLineByWidth (OptionString, Width, &Index, &OutputString) != 0x0000;) {
1661 if ((Temp2 == 0) && (Row <= BottomRow)) {
1662 PrintStringAt (MenuOption->OptCol, Row, OutputString);
1663 }
1664 //
1665 // If there is more string to process print on the next row and increment the Skip value
1666 //
1667 if (StrLen (&OptionString[Index])) {
1668 if (Temp2 == 0) {
1669 Row++;
1670 //
1671 // Since the Number of lines for this menu entry may or may not be reflected accurately
1672 // since the prompt might be 1 lines and option might be many, and vice versa, we need to do
1673 // some testing to ensure we are keeping this in-sync.
1674 //
1675 // If the difference in rows is greater than or equal to the skip value, increase the skip value
1676 //
1677 if ((Row - OriginalRow) >= MenuOption->Skip) {
1678 MenuOption->Skip++;
1679 }
1680 }
1681 }
1682
1683 gBS->FreePool (OutputString);
1684 if (Temp2 != 0) {
1685 Temp2--;
1686 }
1687 }
1688
1689 Temp2 = 0;
1690 Row = OriginalRow;
1691
1692 gBS->FreePool (OptionString);
1693 }
1694 //
1695 // If this is a text op with secondary text information
1696 //
1697 if ((Statement->Operand == EFI_IFR_TEXT_OP) && (Statement->TextTwo != 0)) {
1698 StringPtr = GetToken (Statement->TextTwo, MenuOption->Handle);
1699
1700 Width = (UINT16) gOptionBlockWidth;
1701 OriginalRow = Row;
1702
1703 for (Index = 0; GetLineByWidth (StringPtr, Width, &Index, &OutputString) != 0x0000;) {
1704 if ((Temp == 0) && (Row <= BottomRow)) {
1705 PrintStringAt (MenuOption->OptCol, Row, OutputString);
1706 }
1707 //
1708 // If there is more string to process print on the next row and increment the Skip value
1709 //
1710 if (StrLen (&StringPtr[Index])) {
1711 if (Temp2 == 0) {
1712 Row++;
1713 //
1714 // Since the Number of lines for this menu entry may or may not be reflected accurately
1715 // since the prompt might be 1 lines and option might be many, and vice versa, we need to do
1716 // some testing to ensure we are keeping this in-sync.
1717 //
1718 // If the difference in rows is greater than or equal to the skip value, increase the skip value
1719 //
1720 if ((Row - OriginalRow) >= MenuOption->Skip) {
1721 MenuOption->Skip++;
1722 }
1723 }
1724 }
1725
1726 gBS->FreePool (OutputString);
1727 if (Temp2 != 0) {
1728 Temp2--;
1729 }
1730 }
1731
1732 Row = OriginalRow;
1733 gBS->FreePool (StringPtr);
1734 }
1735
1736 //
1737 // Need to handle the bottom of the display
1738 //
1739 if (MenuOption->Skip > 1) {
1740 Row += MenuOption->Skip - SkipValue;
1741 SkipValue = 0;
1742 } else {
1743 Row += MenuOption->Skip;
1744 }
1745
1746 if (Row > BottomRow) {
1747 if (!ValueIsScroll (FALSE, Link)) {
1748 gDownArrow = TRUE;
1749 }
1750
1751 Row = BottomRow + 1;
1752 break;
1753 }
1754 }
1755
1756 if (!ValueIsScroll (TRUE, TopOfScreen)) {
1757 gUpArrow = TRUE;
1758 }
1759
1760 if (gUpArrow) {
1761 gST->ConOut->SetAttribute (gST->ConOut, ARROW_TEXT | ARROW_BACKGROUND);
1762 PrintAt (
1763 LocalScreen.LeftColumn + gPromptBlockWidth + gOptionBlockWidth + 1,
1764 TopRow - SCROLL_ARROW_HEIGHT,
1765 L"%c",
1766 ARROW_UP
1767 );
1768 gST->ConOut->SetAttribute (gST->ConOut, FIELD_TEXT | FIELD_BACKGROUND);
1769 }
1770
1771 if (gDownArrow) {
1772 gST->ConOut->SetAttribute (gST->ConOut, ARROW_TEXT | ARROW_BACKGROUND);
1773 PrintAt (
1774 LocalScreen.LeftColumn + gPromptBlockWidth + gOptionBlockWidth + 1,
1775 BottomRow + SCROLL_ARROW_HEIGHT,
1776 L"%c",
1777 ARROW_DOWN
1778 );
1779 gST->ConOut->SetAttribute (gST->ConOut, FIELD_TEXT | FIELD_BACKGROUND);
1780 }
1781
1782 MenuOption = NULL;
1783 }
1784 break;
1785
1786 case CfRefreshHighLight:
1787 //
1788 // MenuOption: Last menu option that need to remove hilight
1789 // MenuOption is set to NULL in Repaint
1790 // NewPos: Current menu option that need to hilight
1791 //
1792 ControlFlag = CfUpdateHelpString;
1793
1794 //
1795 // Repaint flag is normally reset when finish processing CfUpdateHelpString. Temporarily
1796 // reset Repaint flag because we may break halfway and skip CfUpdateHelpString processing.
1797 //
1798 SavedValue = Repaint;
1799 Repaint = FALSE;
1800
1801 if (Selection->QuestionId != 0) {
1802 NewPos = Menu.ForwardLink;
1803 SavedMenuOption = MENU_OPTION_FROM_LINK (NewPos);
1804
1805 while (SavedMenuOption->ThisTag->QuestionId != Selection->QuestionId && NewPos->ForwardLink != &Menu) {
1806 NewPos = NewPos->ForwardLink;
1807 SavedMenuOption = MENU_OPTION_FROM_LINK (NewPos);
1808 }
1809 if (SavedMenuOption->ThisTag->QuestionId == Selection->QuestionId) {
1810 //
1811 // Target Question found, find its MenuOption
1812 //
1813 Link = TopOfScreen;
1814
1815 for (Index = TopRow; Index <= BottomRow && Link != NewPos;) {
1816 SavedMenuOption = MENU_OPTION_FROM_LINK (Link);
1817 Index += SavedMenuOption->Skip;
1818 Link = Link->ForwardLink;
1819 }
1820
1821 if (Link != NewPos || Index > BottomRow) {
1822 //
1823 // NewPos is not in the current page, simply scroll page so that NewPos is in the end of the page
1824 //
1825 Link = NewPos;
1826 for (Index = TopRow; Index <= BottomRow; ) {
1827 Link = Link->BackLink;
1828 SavedMenuOption = MENU_OPTION_FROM_LINK (Link);
1829 Index += SavedMenuOption->Skip;
1830 }
1831 TopOfScreen = Link->ForwardLink;
1832
1833 Repaint = TRUE;
1834 NewLine = TRUE;
1835 ControlFlag = CfRepaint;
1836 break;
1837 }
1838 } else {
1839 //
1840 // Target Question not found, highlight the default menu option
1841 //
1842 NewPos = TopOfScreen;
1843 }
1844
1845 Selection->QuestionId = 0;
1846 }
1847
1848 if (NewPos != NULL && (MenuOption == NULL || NewPos != &MenuOption->Link)) {
1849 if (MenuOption != NULL) {
1850 //
1851 // Remove highlight on last Menu Option
1852 //
1853 gST->ConOut->SetCursorPosition (gST->ConOut, MenuOption->Col, MenuOption->Row);
1854 ProcessOptions (Selection, MenuOption, FALSE, &OptionString);
1855 gST->ConOut->SetAttribute (gST->ConOut, FIELD_TEXT | FIELD_BACKGROUND);
1856 if (OptionString != NULL) {
1857 if ((MenuOption->ThisTag->Operand == EFI_IFR_DATE_OP) ||
1858 (MenuOption->ThisTag->Operand == EFI_IFR_TIME_OP)
1859 ) {
1860 //
1861 // If leading spaces on OptionString - remove the spaces
1862 //
1863 for (Index = 0; OptionString[Index] == L' '; Index++)
1864 ;
1865
1866 for (Count = 0; OptionString[Index] != CHAR_NULL; Index++) {
1867 OptionString[Count] = OptionString[Index];
1868 Count++;
1869 }
1870
1871 OptionString[Count] = CHAR_NULL;
1872 }
1873
1874 Width = (UINT16) gOptionBlockWidth;
1875 OriginalRow = MenuOption->Row;
1876
1877 for (Index = 0; GetLineByWidth (OptionString, Width, &Index, &OutputString) != 0x0000;) {
1878 if (MenuOption->Row >= TopRow && MenuOption->Row <= BottomRow) {
1879 PrintStringAt (MenuOption->OptCol, MenuOption->Row, OutputString);
1880 }
1881 //
1882 // If there is more string to process print on the next row and increment the Skip value
1883 //
1884 if (StrLen (&OptionString[Index])) {
1885 MenuOption->Row++;
1886 }
1887
1888 gBS->FreePool (OutputString);
1889 }
1890
1891 MenuOption->Row = OriginalRow;
1892
1893 gBS->FreePool (OptionString);
1894 } else {
1895 if (NewLine) {
1896 if (MenuOption->GrayOut) {
1897 gST->ConOut->SetAttribute (gST->ConOut, FIELD_TEXT_GRAYED | FIELD_BACKGROUND);
1898 } else if (MenuOption->ThisTag->Operand == EFI_IFR_SUBTITLE_OP) {
1899 gST->ConOut->SetAttribute (gST->ConOut, SUBTITLE_TEXT | FIELD_BACKGROUND);
1900 }
1901
1902 OriginalRow = MenuOption->Row;
1903 Width = GetWidth (MenuOption->ThisTag, MenuOption->Handle);
1904
1905 for (Index = 0; GetLineByWidth (MenuOption->Description, Width, &Index, &OutputString) != 0x0000;) {
1906 if (MenuOption->Row >= TopRow && MenuOption->Row <= BottomRow) {
1907 PrintStringAt (MenuOption->Col, MenuOption->Row, OutputString);
1908 }
1909 //
1910 // If there is more string to process print on the next row and increment the Skip value
1911 //
1912 if (StrLen (&MenuOption->Description[Index])) {
1913 MenuOption->Row++;
1914 }
1915
1916 gBS->FreePool (OutputString);
1917 }
1918
1919 MenuOption->Row = OriginalRow;
1920 gST->ConOut->SetAttribute (gST->ConOut, FIELD_TEXT | FIELD_BACKGROUND);
1921 }
1922 }
1923 }
1924
1925 //
1926 // This is only possible if we entered this page and the first menu option is
1927 // a "non-menu" item. In that case, force it UiDown
1928 //
1929 MenuOption = MENU_OPTION_FROM_LINK (NewPos);
1930 if (!IsSelectable (MenuOption)) {
1931 ASSERT (ScreenOperation == UiNoOperation);
1932 ScreenOperation = UiDown;
1933 ControlFlag = CfScreenOperation;
1934 break;
1935 }
1936
1937 //
1938 // This is the current selected statement
1939 //
1940 Statement = MenuOption->ThisTag;
1941 Selection->Statement = Statement;
1942
1943 //
1944 // Set reverse attribute
1945 //
1946 gST->ConOut->SetAttribute (gST->ConOut, FIELD_TEXT_HIGHLIGHT | FIELD_BACKGROUND_HIGHLIGHT);
1947 gST->ConOut->SetCursorPosition (gST->ConOut, MenuOption->Col, MenuOption->Row);
1948
1949 //
1950 // Assuming that we have a refresh linked-list created, lets annotate the
1951 // appropriate entry that we are highlighting with its new attribute. Just prior to this
1952 // lets reset all of the entries' attribute so we do not get multiple highlights in he refresh
1953 //
1954 if (gMenuRefreshHead != NULL) {
1955 for (MenuRefreshEntry = gMenuRefreshHead; MenuRefreshEntry != NULL; MenuRefreshEntry = MenuRefreshEntry->Next) {
1956 MenuRefreshEntry->CurrentAttribute = FIELD_TEXT | FIELD_BACKGROUND;
1957 if (MenuRefreshEntry->MenuOption == MenuOption) {
1958 MenuRefreshEntry->CurrentAttribute = FIELD_TEXT_HIGHLIGHT | FIELD_BACKGROUND_HIGHLIGHT;
1959 }
1960 }
1961 }
1962
1963 ProcessOptions (Selection, MenuOption, FALSE, &OptionString);
1964 if (OptionString != NULL) {
1965 if (Statement->Operand == EFI_IFR_DATE_OP || Statement->Operand == EFI_IFR_TIME_OP) {
1966 //
1967 // If leading spaces on OptionString - remove the spaces
1968 //
1969 for (Index = 0; OptionString[Index] == L' '; Index++)
1970 ;
1971
1972 for (Count = 0; OptionString[Index] != CHAR_NULL; Index++) {
1973 OptionString[Count] = OptionString[Index];
1974 Count++;
1975 }
1976
1977 OptionString[Count] = CHAR_NULL;
1978 }
1979 Width = (UINT16) gOptionBlockWidth;
1980
1981 OriginalRow = MenuOption->Row;
1982
1983 for (Index = 0; GetLineByWidth (OptionString, Width, &Index, &OutputString) != 0x0000;) {
1984 if (MenuOption->Row >= TopRow && MenuOption->Row <= BottomRow) {
1985 PrintStringAt (MenuOption->OptCol, MenuOption->Row, OutputString);
1986 }
1987 //
1988 // If there is more string to process print on the next row and increment the Skip value
1989 //
1990 if (StrLen (&OptionString[Index])) {
1991 MenuOption->Row++;
1992 }
1993
1994 gBS->FreePool (OutputString);
1995 }
1996
1997 MenuOption->Row = OriginalRow;
1998
1999 gBS->FreePool (OptionString);
2000 } else {
2001 if (NewLine) {
2002 OriginalRow = MenuOption->Row;
2003
2004 Width = GetWidth (Statement, MenuOption->Handle);
2005
2006 for (Index = 0; GetLineByWidth (MenuOption->Description, Width, &Index, &OutputString) != 0x0000;) {
2007 if (MenuOption->Row >= TopRow && MenuOption->Row <= BottomRow) {
2008 PrintStringAt (MenuOption->Col, MenuOption->Row, OutputString);
2009 }
2010 //
2011 // If there is more string to process print on the next row and increment the Skip value
2012 //
2013 if (StrLen (&MenuOption->Description[Index])) {
2014 MenuOption->Row++;
2015 }
2016
2017 gBS->FreePool (OutputString);
2018 }
2019
2020 MenuOption->Row = OriginalRow;
2021
2022 }
2023 }
2024
2025 if (((NewPos->ForwardLink != &Menu) && (ScreenOperation == UiDown)) ||
2026 ((NewPos->BackLink != &Menu) && (ScreenOperation == UiUp)) ||
2027 (ScreenOperation == UiNoOperation)
2028 ) {
2029 UpdateKeyHelp (MenuOption, FALSE);
2030 }
2031 //
2032 // Clear reverse attribute
2033 //
2034 gST->ConOut->SetAttribute (gST->ConOut, FIELD_TEXT | FIELD_BACKGROUND);
2035 }
2036 //
2037 // Repaint flag will be used when process CfUpdateHelpString, so restore its value
2038 // if we didn't break halfway when process CfRefreshHighLight.
2039 //
2040 Repaint = SavedValue;
2041 break;
2042
2043 case CfUpdateHelpString:
2044 ControlFlag = CfPrepareToReadKey;
2045
2046 if ((Repaint || NewLine) && (gClassOfVfr != EFI_GENERAL_APPLICATION_SUBCLASS)) {
2047 //
2048 // Don't print anything if it is a NULL help token
2049 //
2050 if (MenuOption->ThisTag->Help == 0) {
2051 StringPtr = L"\0";
2052 } else {
2053 StringPtr = GetToken (MenuOption->ThisTag->Help, MenuOption->Handle);
2054 }
2055
2056 ProcessHelpString (StringPtr, &FormattedString, BottomRow - TopRow);
2057
2058 gST->ConOut->SetAttribute (gST->ConOut, HELP_TEXT | FIELD_BACKGROUND);
2059
2060 for (Index = 0; Index < BottomRow - TopRow; Index++) {
2061 //
2062 // Pad String with spaces to simulate a clearing of the previous line
2063 //
2064 for (; GetStringWidth (&FormattedString[Index * gHelpBlockWidth * 2]) / 2 < gHelpBlockWidth;) {
2065 StrCat (&FormattedString[Index * gHelpBlockWidth * 2], L" ");
2066 }
2067
2068 PrintStringAt (
2069 LocalScreen.RightColumn - gHelpBlockWidth,
2070 Index + TopRow,
2071 &FormattedString[Index * gHelpBlockWidth * 2]
2072 );
2073 }
2074 }
2075 //
2076 // Reset this flag every time we finish using it.
2077 //
2078 Repaint = FALSE;
2079 NewLine = FALSE;
2080 break;
2081
2082 case CfPrepareToReadKey:
2083 ControlFlag = CfReadKey;
2084 ScreenOperation = UiNoOperation;
2085 break;
2086
2087 case CfReadKey:
2088 ControlFlag = CfScreenOperation;
2089
2090 //
2091 // Wait for user's selection
2092 //
2093 do {
2094 Status = UiWaitForSingleEvent (gST->ConIn->WaitForKey, 0, MinRefreshInterval);
2095 } while (Status == EFI_TIMEOUT);
2096
2097 if (Status == EFI_TIMEOUT) {
2098 Key.UnicodeChar = CHAR_CARRIAGE_RETURN;
2099 } else {
2100 Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
2101 //
2102 // if we encounter error, continue to read another key in.
2103 //
2104 if (EFI_ERROR (Status)) {
2105 ControlFlag = CfReadKey;
2106 continue;
2107 }
2108 }
2109
2110 if (IsListEmpty (&Menu) && Key.UnicodeChar != CHAR_NULL) {
2111 //
2112 // If the screen has no menu items, and the user didn't select UiPrevious, or UiReset
2113 //
2114 break;
2115 }
2116
2117 switch (Key.UnicodeChar) {
2118 case CHAR_CARRIAGE_RETURN:
2119 ScreenOperation = UiSelect;
2120 gDirection = 0;
2121 break;
2122
2123 //
2124 // We will push the adjustment of these numeric values directly to the input handler
2125 // NOTE: we won't handle manual input numeric
2126 //
2127 case '+':
2128 case '-':
2129 Statement = MenuOption->ThisTag;
2130 if ((Statement->Operand == EFI_IFR_DATE_OP)
2131 || (Statement->Operand == EFI_IFR_TIME_OP)
2132 || ((Statement->Operand == EFI_IFR_NUMERIC_OP) && (Statement->Step != 0))
2133 ){
2134 if (Key.UnicodeChar == '+') {
2135 gDirection = SCAN_RIGHT;
2136 } else {
2137 gDirection = SCAN_LEFT;
2138 }
2139 Status = ProcessOptions (Selection, MenuOption, TRUE, &OptionString);
2140 if (OptionString != NULL) {
2141 FreePool (OptionString);
2142 }
2143 }
2144 break;
2145
2146 case '^':
2147 ScreenOperation = UiUp;
2148 break;
2149
2150 case 'V':
2151 case 'v':
2152 ScreenOperation = UiDown;
2153 break;
2154
2155 case ' ':
2156 if (gClassOfVfr != EFI_FRONT_PAGE_SUBCLASS) {
2157 if (MenuOption->ThisTag->Operand == EFI_IFR_CHECKBOX_OP && !MenuOption->GrayOut) {
2158 ScreenOperation = UiSelect;
2159 }
2160 }
2161 break;
2162
2163 case CHAR_NULL:
2164 if (((Key.ScanCode == SCAN_F1) && ((gFunctionKeySetting & FUNCTION_ONE) != FUNCTION_ONE)) ||
2165 ((Key.ScanCode == SCAN_F2) && ((gFunctionKeySetting & FUNCTION_TWO) != FUNCTION_TWO)) ||
2166 ((Key.ScanCode == SCAN_F9) && ((gFunctionKeySetting & FUNCTION_NINE) != FUNCTION_NINE)) ||
2167 ((Key.ScanCode == SCAN_F10) && ((gFunctionKeySetting & FUNCTION_TEN) != FUNCTION_TEN))
2168 ) {
2169 //
2170 // If the function key has been disabled, just ignore the key.
2171 //
2172 } else {
2173 for (Index = 0; Index < sizeof (gScanCodeToOperation) / sizeof (gScanCodeToOperation[0]); Index++) {
2174 if (Key.ScanCode == gScanCodeToOperation[Index].ScanCode) {
2175 if (Key.ScanCode == SCAN_F9) {
2176 //
2177 // Reset to standard default
2178 //
2179 DefaultId = EFI_HII_DEFAULT_CLASS_STANDARD;
2180 }
2181 ScreenOperation = gScanCodeToOperation[Index].ScreenOperation;
2182 break;
2183 }
2184 }
2185 }
2186 break;
2187 }
2188 break;
2189
2190 case CfScreenOperation:
2191 if (ScreenOperation != UiPrevious && ScreenOperation != UiReset) {
2192 //
2193 // If the screen has no menu items, and the user didn't select UiPrevious, or UiReset
2194 // ignore the selection and go back to reading keys.
2195 //
2196 if (IsListEmpty (&Menu)) {
2197 ControlFlag = CfReadKey;
2198 break;
2199 }
2200 //
2201 // if there is nothing logical to place a cursor on, just move on to wait for a key.
2202 //
2203 for (Link = Menu.ForwardLink; Link != &Menu; Link = Link->ForwardLink) {
2204 NextMenuOption = MENU_OPTION_FROM_LINK (Link);
2205 if (IsSelectable (NextMenuOption)) {
2206 break;
2207 }
2208 }
2209
2210 if (Link == &Menu) {
2211 ControlFlag = CfPrepareToReadKey;
2212 break;
2213 }
2214 } else if (ScreenOperation == UiReset) {
2215 //
2216 // Press ESC to exit FormSet
2217 //
2218 Selection->Action = UI_ACTION_EXIT;
2219 Selection->Statement = NULL;
2220 }
2221
2222 for (Index = 0;
2223 Index < sizeof (gScreenOperationToControlFlag) / sizeof (gScreenOperationToControlFlag[0]);
2224 Index++
2225 ) {
2226 if (ScreenOperation == gScreenOperationToControlFlag[Index].ScreenOperation) {
2227 ControlFlag = gScreenOperationToControlFlag[Index].ControlFlag;
2228 break;
2229 }
2230 }
2231 break;
2232
2233 case CfUiPrevious:
2234 ControlFlag = CfCheckSelection;
2235
2236 if (IsListEmpty (&gMenuList)) {
2237 Selection->Action = UI_ACTION_NONE;
2238 if (IsListEmpty (&Menu)) {
2239 ControlFlag = CfReadKey;
2240 }
2241 break;
2242 }
2243
2244 //
2245 // Remove the Cached page entry
2246 //
2247 UiRemoveMenuListEntry (Selection);
2248
2249 Selection->Action = UI_ACTION_REFRESH_FORM;
2250 Selection->Statement = NULL;
2251 break;
2252
2253 case CfUiSelect:
2254 ControlFlag = CfCheckSelection;
2255
2256 Statement = MenuOption->ThisTag;
2257 if ((Statement->Operand == EFI_IFR_TEXT_OP) ||
2258 (Statement->Operand == EFI_IFR_DATE_OP) ||
2259 (Statement->Operand == EFI_IFR_TIME_OP) ||
2260 (Statement->Operand == EFI_IFR_NUMERIC_OP && Statement->Step != 0)) {
2261 break;
2262 }
2263
2264 //
2265 // Keep highlight on current MenuOption
2266 //
2267 Selection->QuestionId = Statement->QuestionId;
2268
2269 switch (Statement->Operand) {
2270 case EFI_IFR_REF_OP:
2271 if (Statement->RefDevicePath != 0) {
2272 //
2273 // Goto another Hii Package list
2274 //
2275 ControlFlag = CfUiReset;
2276 Selection->Action = UI_ACTION_REFRESH_FORMSET;
2277
2278 StringPtr = GetToken (Statement->RefDevicePath, Selection->FormSet->HiiHandle);
2279 if (StringPtr == NULL) {
2280 //
2281 // No device path string not found, exit
2282 //
2283 Selection->Action = UI_ACTION_EXIT;
2284 Selection->Statement = NULL;
2285 break;
2286 }
2287 BufferSize = StrLen (StringPtr) / 2;
2288 DevicePath = AllocatePool (BufferSize);
2289
2290 HexStringToBufInReverseOrder ((UINT8 *) DevicePath, &BufferSize, StringPtr);
2291 Selection->Handle = HiiLibDevicePathToHiiHandle (DevicePath);
2292 if (Selection->Handle == NULL) {
2293 //
2294 // If target Hii Handle not found, exit
2295 //
2296 Selection->Action = UI_ACTION_EXIT;
2297 Selection->Statement = NULL;
2298 break;
2299 }
2300
2301 gBS->FreePool (StringPtr);
2302 gBS->FreePool (DevicePath);
2303
2304 CopyMem (&Selection->FormSetGuid, &Statement->RefFormSetId, sizeof (EFI_GUID));
2305 Selection->FormId = Statement->RefFormId;
2306 Selection->QuestionId = Statement->RefQuestionId;
2307 } else if (!CompareGuid (&Statement->RefFormSetId, &gZeroGuid)) {
2308 //
2309 // Goto another Formset, check for uncommitted data
2310 //
2311 ControlFlag = CfUiReset;
2312 Selection->Action = UI_ACTION_REFRESH_FORMSET;
2313
2314 CopyMem (&Selection->FormSetGuid, &Statement->RefFormSetId, sizeof (EFI_GUID));
2315 Selection->FormId = Statement->RefFormId;
2316 Selection->QuestionId = Statement->RefQuestionId;
2317 } else if (Statement->RefFormId != 0) {
2318 //
2319 // Goto another form inside this formset,
2320 //
2321 Selection->Action = UI_ACTION_REFRESH_FORM;
2322
2323 //
2324 // Link current form so that we can always go back when someone hits the UiPrevious
2325 //
2326 UiAddMenuListEntry (Selection);
2327
2328 Selection->FormId = Statement->RefFormId;
2329 Selection->QuestionId = Statement->RefQuestionId;
2330 } else if (Statement->RefQuestionId != 0) {
2331 //
2332 // Goto another Question
2333 //
2334 Selection->QuestionId = Statement->RefQuestionId;
2335
2336 if ((Statement->QuestionFlags & EFI_IFR_FLAG_CALLBACK) != 0) {
2337 Selection->Action = UI_ACTION_REFRESH_FORM;
2338 } else {
2339 Repaint = TRUE;
2340 NewLine = TRUE;
2341 break;
2342 }
2343 }
2344 break;
2345
2346 case EFI_IFR_ACTION_OP:
2347 //
2348 // Process the Config string <ConfigResp>
2349 //
2350 Status = ProcessQuestionConfig (Selection, Statement);
2351
2352 if (EFI_ERROR (Status)) {
2353 break;
2354 }
2355
2356 //
2357 // The action button may change some Question value, so refresh the form
2358 //
2359 Selection->Action = UI_ACTION_REFRESH_FORM;
2360 break;
2361
2362 case EFI_IFR_RESET_BUTTON_OP:
2363 //
2364 // Reset Question to default value specified by DefaultId
2365 //
2366 ControlFlag = CfUiDefault;
2367 DefaultId = Statement->DefaultId;
2368 break;
2369
2370 default:
2371 //
2372 // Editable Questions: oneof, ordered list, checkbox, numeric, string, password
2373 //
2374 UpdateKeyHelp (MenuOption, TRUE);
2375 Status = ProcessOptions (Selection, MenuOption, TRUE, &OptionString);
2376
2377 if (EFI_ERROR (Status)) {
2378 Repaint = TRUE;
2379 NewLine = TRUE;
2380 break;
2381 }
2382
2383 if (OptionString != NULL) {
2384 PrintStringAt (LocalScreen.LeftColumn + gPromptBlockWidth + 1, MenuOption->Row, OptionString);
2385 gBS->FreePool (OptionString);
2386 }
2387
2388 Selection->Action = UI_ACTION_REFRESH_FORM;
2389 break;
2390 }
2391 break;
2392
2393 case CfUiReset:
2394 //
2395 // We are going to leave current FormSet, so check uncommited data in this FormSet
2396 //
2397 ControlFlag = CfCheckSelection;
2398
2399 if (gClassOfVfr == EFI_FRONT_PAGE_SUBCLASS) {
2400 //
2401 // There is no parent menu for FrontPage
2402 //
2403 Selection->Action = UI_ACTION_NONE;
2404 Selection->Statement = MenuOption->ThisTag;
2405 break;
2406 }
2407
2408 //
2409 // If NV flag is up, prompt user
2410 //
2411 if (gNvUpdateRequired) {
2412 Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
2413
2414 YesResponse = gYesResponse[0];
2415 NoResponse = gNoResponse[0];
2416
2417 do {
2418 CreateDialog (3, TRUE, 0, NULL, &Key, gEmptyString, gAreYouSure, gEmptyString);
2419 } while
2420 (
2421 (Key.ScanCode != SCAN_ESC) &&
2422 ((Key.UnicodeChar | UPPER_LOWER_CASE_OFFSET) != (NoResponse | UPPER_LOWER_CASE_OFFSET)) &&
2423 ((Key.UnicodeChar | UPPER_LOWER_CASE_OFFSET) != (YesResponse | UPPER_LOWER_CASE_OFFSET))
2424 );
2425
2426 //
2427 // If the user hits the YesResponse key
2428 //
2429 if ((Key.UnicodeChar | UPPER_LOWER_CASE_OFFSET) == (YesResponse | UPPER_LOWER_CASE_OFFSET)) {
2430 } else {
2431 Repaint = TRUE;
2432 NewLine = TRUE;
2433
2434 Selection->Action = UI_ACTION_NONE;
2435 break;
2436 }
2437 }
2438
2439 gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK));
2440 gST->ConOut->EnableCursor (gST->ConOut, TRUE);
2441
2442 UiFreeMenuList ();
2443 gST->ConOut->ClearScreen (gST->ConOut);
2444 return EFI_SUCCESS;
2445
2446 case CfUiLeft:
2447 ControlFlag = CfCheckSelection;
2448 if ((MenuOption->ThisTag->Operand == EFI_IFR_DATE_OP) || (MenuOption->ThisTag->Operand == EFI_IFR_TIME_OP)) {
2449 if (MenuOption->Sequence != 0) {
2450 //
2451 // In the middle or tail of the Date/Time op-code set, go left.
2452 //
2453 NewPos = NewPos->BackLink;
2454 }
2455 }
2456 break;
2457
2458 case CfUiRight:
2459 ControlFlag = CfCheckSelection;
2460 if ((MenuOption->ThisTag->Operand == EFI_IFR_DATE_OP) || (MenuOption->ThisTag->Operand == EFI_IFR_TIME_OP)) {
2461 if (MenuOption->Sequence != 2) {
2462 //
2463 // In the middle or tail of the Date/Time op-code set, go left.
2464 //
2465 NewPos = NewPos->ForwardLink;
2466 }
2467 }
2468 break;
2469
2470 case CfUiUp:
2471 ControlFlag = CfCheckSelection;
2472
2473 SavedListEntry = TopOfScreen;
2474
2475 if (NewPos->BackLink != &Menu) {
2476 NewLine = TRUE;
2477 //
2478 // Adjust Date/Time position before we advance forward.
2479 //
2480 AdjustDateAndTimePosition (TRUE, &NewPos);
2481
2482 //
2483 // Caution that we have already rewind to the top, don't go backward in this situation.
2484 //
2485 if (NewPos->BackLink != &Menu) {
2486 NewPos = NewPos->BackLink;
2487 }
2488
2489 PreviousMenuOption = MENU_OPTION_FROM_LINK (NewPos);
2490 DistanceValue = PreviousMenuOption->Skip;
2491
2492 //
2493 // Since the behavior of hitting the up arrow on a Date/Time op-code is intended
2494 // to be one that back to the previous set of op-codes, we need to advance to the sencond
2495 // Date/Time op-code and leave the remaining logic in UiDown intact so the appropriate
2496 // checking can be done.
2497 //
2498 DistanceValue += AdjustDateAndTimePosition (TRUE, &NewPos);
2499
2500 //
2501 // Check the previous menu entry to see if it was a zero-length advance. If it was,
2502 // don't worry about a redraw.
2503 //
2504 if ((INTN) MenuOption->Row - (INTN) DistanceValue < (INTN) TopRow) {
2505 Repaint = TRUE;
2506 TopOfScreen = NewPos;
2507 }
2508
2509 Difference = MoveToNextStatement (TRUE, &NewPos);
2510 if ((INTN) MenuOption->Row - (INTN) DistanceValue < (INTN) TopRow) {
2511 if (Difference > 0) {
2512 //
2513 // Previous focus MenuOption is above the TopOfScreen, so we need to scroll
2514 //
2515 TopOfScreen = NewPos;
2516 Repaint = TRUE;
2517 }
2518 }
2519 if (Difference < 0) {
2520 //
2521 // We want to goto previous MenuOption, but finally we go down.
2522 // it means that we hit the begining MenuOption that can be focused
2523 // so we simply scroll to the top
2524 //
2525 if (SavedListEntry != Menu.ForwardLink) {
2526 TopOfScreen = Menu.ForwardLink;
2527 Repaint = TRUE;
2528 }
2529 }
2530
2531 //
2532 // If we encounter a Date/Time op-code set, rewind to the first op-code of the set.
2533 //
2534 AdjustDateAndTimePosition (TRUE, &TopOfScreen);
2535
2536 UpdateStatusBar (INPUT_ERROR, MenuOption->ThisTag->QuestionFlags, FALSE);
2537 } else {
2538 SavedMenuOption = MenuOption;
2539 MenuOption = MENU_OPTION_FROM_LINK (NewPos);
2540 if (!IsSelectable (MenuOption)) {
2541 //
2542 // If we are at the end of the list and sitting on a text op, we need to more forward
2543 //
2544 ScreenOperation = UiDown;
2545 ControlFlag = CfScreenOperation;
2546 break;
2547 }
2548
2549 MenuOption = SavedMenuOption;
2550 }
2551 break;
2552
2553 case CfUiPageUp:
2554 ControlFlag = CfCheckSelection;
2555
2556 if (NewPos->BackLink == &Menu) {
2557 NewLine = FALSE;
2558 Repaint = FALSE;
2559 break;
2560 }
2561
2562 NewLine = TRUE;
2563 Repaint = TRUE;
2564 Link = TopOfScreen;
2565 PreviousMenuOption = MENU_OPTION_FROM_LINK (Link);
2566 Index = BottomRow;
2567 while ((Index >= TopRow) && (Link->BackLink != &Menu)) {
2568 Index = Index - PreviousMenuOption->Skip;
2569 Link = Link->BackLink;
2570 PreviousMenuOption = MENU_OPTION_FROM_LINK (Link);
2571 }
2572
2573 TopOfScreen = Link;
2574 Difference = MoveToNextStatement (TRUE, &Link);
2575 if (Difference > 0) {
2576 //
2577 // The focus MenuOption is above the TopOfScreen
2578 //
2579 TopOfScreen = Link;
2580 } else if (Difference < 0) {
2581 //
2582 // This happens when there is no MenuOption can be focused from
2583 // Current MenuOption to the first MenuOption
2584 //
2585 TopOfScreen = Menu.ForwardLink;
2586 }
2587 Index += Difference;
2588 if (Index < TopRow) {
2589 MenuOption = NULL;
2590 }
2591
2592 if (NewPos == Link) {
2593 Repaint = FALSE;
2594 NewLine = FALSE;
2595 } else {
2596 NewPos = Link;
2597 }
2598
2599 //
2600 // If we encounter a Date/Time op-code set, rewind to the first op-code of the set.
2601 // Don't do this when we are already in the first page.
2602 //
2603 AdjustDateAndTimePosition (TRUE, &TopOfScreen);
2604 AdjustDateAndTimePosition (TRUE, &NewPos);
2605 break;
2606
2607 case CfUiPageDown:
2608 ControlFlag = CfCheckSelection;
2609
2610 if (NewPos->ForwardLink == &Menu) {
2611 NewLine = FALSE;
2612 Repaint = FALSE;
2613 break;
2614 }
2615
2616 NewLine = TRUE;
2617 Repaint = TRUE;
2618 Link = TopOfScreen;
2619 NextMenuOption = MENU_OPTION_FROM_LINK (Link);
2620 Index = TopRow;
2621 while ((Index <= BottomRow) && (Link->ForwardLink != &Menu)) {
2622 Index = Index + NextMenuOption->Skip;
2623 Link = Link->ForwardLink;
2624 NextMenuOption = MENU_OPTION_FROM_LINK (Link);
2625 }
2626
2627 Index += MoveToNextStatement (FALSE, &Link);
2628 if (Index > BottomRow) {
2629 //
2630 // There are more MenuOption needing scrolling
2631 //
2632 TopOfScreen = Link;
2633 MenuOption = NULL;
2634 }
2635 if (NewPos == Link && Index <= BottomRow) {
2636 //
2637 // Finally we know that NewPos is the last MenuOption can be focused.
2638 //
2639 NewLine = FALSE;
2640 Repaint = FALSE;
2641 } else {
2642 NewPos = Link;
2643 }
2644
2645 //
2646 // If we encounter a Date/Time op-code set, rewind to the first op-code of the set.
2647 // Don't do this when we are already in the last page.
2648 //
2649 AdjustDateAndTimePosition (TRUE, &TopOfScreen);
2650 AdjustDateAndTimePosition (TRUE, &NewPos);
2651 break;
2652
2653 case CfUiDown:
2654 ControlFlag = CfCheckSelection;
2655 //
2656 // Since the behavior of hitting the down arrow on a Date/Time op-code is intended
2657 // to be one that progresses to the next set of op-codes, we need to advance to the last
2658 // Date/Time op-code and leave the remaining logic in UiDown intact so the appropriate
2659 // checking can be done. The only other logic we need to introduce is that if a Date/Time
2660 // op-code is the last entry in the menu, we need to rewind back to the first op-code of
2661 // the Date/Time op-code.
2662 //
2663 SavedListEntry = NewPos;
2664 DistanceValue = AdjustDateAndTimePosition (FALSE, &NewPos);
2665
2666 if (NewPos->ForwardLink != &Menu) {
2667 MenuOption = MENU_OPTION_FROM_LINK (NewPos);
2668 NewLine = TRUE;
2669 NewPos = NewPos->ForwardLink;
2670 NextMenuOption = MENU_OPTION_FROM_LINK (NewPos);
2671
2672 DistanceValue += NextMenuOption->Skip;
2673 DistanceValue += MoveToNextStatement (FALSE, &NewPos);
2674 //
2675 // An option might be multi-line, so we need to reflect that data in the overall skip value
2676 //
2677 UpdateOptionSkipLines (Selection, NextMenuOption, &OptionString, SkipValue);
2678
2679 Temp = MenuOption->Row + MenuOption->Skip + DistanceValue - 1;
2680 if ((MenuOption->Row + MenuOption->Skip == BottomRow + 1) &&
2681 (NextMenuOption->ThisTag->Operand == EFI_IFR_DATE_OP ||
2682 NextMenuOption->ThisTag->Operand == EFI_IFR_TIME_OP)
2683 ) {
2684 Temp ++;
2685 }
2686
2687 //
2688 // If we are going to scroll, update TopOfScreen
2689 //
2690 if (Temp > BottomRow) {
2691 do {
2692 //
2693 // Is the current top of screen a zero-advance op-code?
2694 // If so, keep moving forward till we hit a >0 advance op-code
2695 //
2696 SavedMenuOption = MENU_OPTION_FROM_LINK (TopOfScreen);
2697
2698 //
2699 // If bottom op-code is more than one line or top op-code is more than one line
2700 //
2701 if ((DistanceValue > 1) || (MenuOption->Skip > 1)) {
2702 //
2703 // Is the bottom op-code greater than or equal in size to the top op-code?
2704 //
2705 if ((Temp - BottomRow) >= (SavedMenuOption->Skip - OldSkipValue)) {
2706 //
2707 // Skip the top op-code
2708 //
2709 TopOfScreen = TopOfScreen->ForwardLink;
2710 Difference = (Temp - BottomRow) - (SavedMenuOption->Skip - OldSkipValue);
2711
2712 OldSkipValue = Difference;
2713
2714 SavedMenuOption = MENU_OPTION_FROM_LINK (TopOfScreen);
2715
2716 //
2717 // If we have a remainder, skip that many more op-codes until we drain the remainder
2718 //
2719 for (;
2720 Difference >= (INTN) SavedMenuOption->Skip;
2721 Difference = Difference - (INTN) SavedMenuOption->Skip
2722 ) {
2723 //
2724 // Since the Difference is greater than or equal to this op-code's skip value, skip it
2725 //
2726 TopOfScreen = TopOfScreen->ForwardLink;
2727 SavedMenuOption = MENU_OPTION_FROM_LINK (TopOfScreen);
2728 if (Difference < (INTN) SavedMenuOption->Skip) {
2729 Difference = SavedMenuOption->Skip - Difference - 1;
2730 break;
2731 } else {
2732 if (Difference == (INTN) SavedMenuOption->Skip) {
2733 TopOfScreen = TopOfScreen->ForwardLink;
2734 SavedMenuOption = MENU_OPTION_FROM_LINK (TopOfScreen);
2735 Difference = SavedMenuOption->Skip - Difference;
2736 break;
2737 }
2738 }
2739 }
2740 //
2741 // Since we will act on this op-code in the next routine, and increment the
2742 // SkipValue, set the skips to one less than what is required.
2743 //
2744 SkipValue = Difference - 1;
2745
2746 } else {
2747 //
2748 // Since we will act on this op-code in the next routine, and increment the
2749 // SkipValue, set the skips to one less than what is required.
2750 //
2751 SkipValue = OldSkipValue + (Temp - BottomRow) - 1;
2752 }
2753 } else {
2754 if ((OldSkipValue + 1) == (INTN) SavedMenuOption->Skip) {
2755 TopOfScreen = TopOfScreen->ForwardLink;
2756 break;
2757 } else {
2758 SkipValue = OldSkipValue;
2759 }
2760 }
2761 //
2762 // If the op-code at the top of the screen is more than one line, let's not skip it yet
2763 // Let's set a skip flag to smoothly scroll the top of the screen.
2764 //
2765 if (SavedMenuOption->Skip > 1) {
2766 if (SavedMenuOption == NextMenuOption) {
2767 SkipValue = 0;
2768 } else {
2769 SkipValue++;
2770 }
2771 } else {
2772 SkipValue = 0;
2773 TopOfScreen = TopOfScreen->ForwardLink;
2774 }
2775 } while (SavedMenuOption->Skip == 0);
2776
2777 Repaint = TRUE;
2778 OldSkipValue = SkipValue;
2779 }
2780
2781 MenuOption = MENU_OPTION_FROM_LINK (SavedListEntry);
2782
2783 UpdateStatusBar (INPUT_ERROR, MenuOption->ThisTag->QuestionFlags, FALSE);
2784
2785 } else {
2786 SavedMenuOption = MenuOption;
2787 MenuOption = MENU_OPTION_FROM_LINK (NewPos);
2788 if (!IsSelectable (MenuOption)) {
2789 //
2790 // If we are at the end of the list and sitting on a text op, we need to more forward
2791 //
2792 ScreenOperation = UiUp;
2793 ControlFlag = CfScreenOperation;
2794 break;
2795 }
2796
2797 MenuOption = SavedMenuOption;
2798 //
2799 // If we are at the end of the list and sitting on a Date/Time op, rewind to the head.
2800 //
2801 AdjustDateAndTimePosition (TRUE, &NewPos);
2802 }
2803 break;
2804
2805 case CfUiSave:
2806 ControlFlag = CfCheckSelection;
2807
2808 //
2809 // Submit the form
2810 //
2811 Status = SubmitForm (Selection->FormSet, Selection->Form);
2812
2813 if (!EFI_ERROR (Status)) {
2814 UpdateStatusBar (INPUT_ERROR, MenuOption->ThisTag->QuestionFlags, FALSE);
2815 UpdateStatusBar (NV_UPDATE_REQUIRED, MenuOption->ThisTag->QuestionFlags, FALSE);
2816 } else {
2817 do {
2818 CreateDialog (4, TRUE, 0, NULL, &Key, gEmptyString, gSaveFailed, gPressEnter, gEmptyString);
2819 } while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);
2820
2821 Repaint = TRUE;
2822 NewLine = TRUE;
2823 }
2824 break;
2825
2826 case CfUiDefault:
2827 ControlFlag = CfCheckSelection;
2828
2829 Status = ExtractFormDefault (Selection->FormSet, Selection->Form, DefaultId);
2830
2831 if (!EFI_ERROR (Status)) {
2832 Selection->Action = UI_ACTION_REFRESH_FORM;
2833 Selection->Statement = NULL;
2834
2835 //
2836 // Show NV update flag on status bar
2837 //
2838 gNvUpdateRequired = TRUE;
2839 }
2840 break;
2841
2842 case CfUiNoOperation:
2843 ControlFlag = CfCheckSelection;
2844 break;
2845
2846 case CfExit:
2847 UiFreeRefreshList ();
2848
2849 gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK));
2850 gST->ConOut->SetCursorPosition (gST->ConOut, 0, Row + 4);
2851 gST->ConOut->EnableCursor (gST->ConOut, TRUE);
2852 gST->ConOut->OutputString (gST->ConOut, L"\n");
2853
2854 return EFI_SUCCESS;
2855
2856 default:
2857 break;
2858 }
2859 }
2860 }
EFI Development Kit II mirror for PVE