f2eac4d3fece8715efab2d900fd128945e160f7a
[mirror_edk2.git] / MdeModulePkg / Universal / DisplayEngineDxe / FormDisplay.c
1 /** @file
2 Entry and initialization module for the browser.
3
4 Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
5 Copyright (c) 2014, Hewlett-Packard Development Company, L.P.<BR>
6 This program and the accompanying materials
7 are licensed and made available under the terms and conditions of the BSD License
8 which accompanies this distribution. The full text of the license may be found at
9 http://opensource.org/licenses/bsd-license.php
10
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
13
14 **/
15
16 #include "FormDisplay.h"
17
18 //
19 // Search table for UiDisplayMenu()
20 //
21 SCAN_CODE_TO_SCREEN_OPERATION gScanCodeToOperation[] = {
22 {
23 SCAN_UP,
24 UiUp,
25 },
26 {
27 SCAN_DOWN,
28 UiDown,
29 },
30 {
31 SCAN_PAGE_UP,
32 UiPageUp,
33 },
34 {
35 SCAN_PAGE_DOWN,
36 UiPageDown,
37 },
38 {
39 SCAN_ESC,
40 UiReset,
41 },
42 {
43 SCAN_LEFT,
44 UiLeft,
45 },
46 {
47 SCAN_RIGHT,
48 UiRight,
49 }
50 };
51
52 UINTN mScanCodeNumber = ARRAY_SIZE (gScanCodeToOperation);
53
54 SCREEN_OPERATION_T0_CONTROL_FLAG gScreenOperationToControlFlag[] = {
55 {
56 UiNoOperation,
57 CfUiNoOperation,
58 },
59 {
60 UiSelect,
61 CfUiSelect,
62 },
63 {
64 UiUp,
65 CfUiUp,
66 },
67 {
68 UiDown,
69 CfUiDown,
70 },
71 {
72 UiLeft,
73 CfUiLeft,
74 },
75 {
76 UiRight,
77 CfUiRight,
78 },
79 {
80 UiReset,
81 CfUiReset,
82 },
83 {
84 UiPageUp,
85 CfUiPageUp,
86 },
87 {
88 UiPageDown,
89 CfUiPageDown
90 },
91 {
92 UiHotKey,
93 CfUiHotKey
94 }
95 };
96
97 EFI_GUID gDisplayEngineGuid = {
98 0xE38C1029, 0xE38F, 0x45b9, {0x8F, 0x0D, 0xE2, 0xE6, 0x0B, 0xC9, 0xB2, 0x62}
99 };
100
101 BOOLEAN gMisMatch;
102 EFI_SCREEN_DESCRIPTOR gStatementDimensions;
103 BOOLEAN mStatementLayoutIsChanged = TRUE;
104 USER_INPUT *gUserInput;
105 FORM_DISPLAY_ENGINE_FORM *gFormData;
106 EFI_HII_HANDLE gHiiHandle;
107 UINT16 gDirection;
108 LIST_ENTRY gMenuOption;
109 DISPLAY_HIGHLIGHT_MENU_INFO gHighligthMenuInfo = {0};
110 BOOLEAN mIsFirstForm = TRUE;
111 FORM_ENTRY_INFO gOldFormEntry = {0};
112
113 //
114 // Browser Global Strings
115 //
116 CHAR16 *gReconnectConfirmChanges;
117 CHAR16 *gReconnectFail;
118 CHAR16 *gReconnectRequired;
119 CHAR16 *gChangesOpt;
120 CHAR16 *gFormNotFound;
121 CHAR16 *gNoSubmitIf;
122 CHAR16 *gBrowserError;
123 CHAR16 *gSaveFailed;
124 CHAR16 *gNoSubmitIfFailed;
125 CHAR16 *gSaveProcess;
126 CHAR16 *gSaveNoSubmitProcess;
127 CHAR16 *gDiscardChange;
128 CHAR16 *gJumpToFormSet;
129 CHAR16 *gCheckError;
130 CHAR16 *gPromptForData;
131 CHAR16 *gPromptForPassword;
132 CHAR16 *gPromptForNewPassword;
133 CHAR16 *gConfirmPassword;
134 CHAR16 *gConfirmError;
135 CHAR16 *gPassowordInvalid;
136 CHAR16 *gPressEnter;
137 CHAR16 *gEmptyString;
138 CHAR16 *gMiniString;
139 CHAR16 *gOptionMismatch;
140 CHAR16 *gFormSuppress;
141 CHAR16 *gProtocolNotFound;
142 CHAR16 *gConfirmDefaultMsg;
143 CHAR16 *gConfirmSubmitMsg;
144 CHAR16 *gConfirmDiscardMsg;
145 CHAR16 *gConfirmResetMsg;
146 CHAR16 *gConfirmExitMsg;
147 CHAR16 *gConfirmSubmitMsg2nd;
148 CHAR16 *gConfirmDefaultMsg2nd;
149 CHAR16 *gConfirmResetMsg2nd;
150 CHAR16 *gConfirmExitMsg2nd;
151 CHAR16 *gConfirmOpt;
152 CHAR16 *gConfirmOptYes;
153 CHAR16 *gConfirmOptNo;
154 CHAR16 *gConfirmOptOk;
155 CHAR16 *gConfirmOptCancel;
156 CHAR16 *gYesOption;
157 CHAR16 *gNoOption;
158 CHAR16 *gOkOption;
159 CHAR16 *gCancelOption;
160 CHAR16 *gErrorPopup;
161 CHAR16 *gWarningPopup;
162 CHAR16 *gInfoPopup;
163 CHAR16 *gConfirmMsgConnect;
164 CHAR16 *gConfirmMsgEnd;
165 CHAR16 *gPasswordUnsupported;
166 CHAR16 gModalSkipColumn;
167 CHAR16 gPromptBlockWidth;
168 CHAR16 gOptionBlockWidth;
169 CHAR16 gHelpBlockWidth;
170 CHAR16 *mUnknownString;
171
172 FORM_DISPLAY_DRIVER_PRIVATE_DATA mPrivateData = {
173 FORM_DISPLAY_DRIVER_SIGNATURE,
174 NULL,
175 {
176 FormDisplay,
177 DriverClearDisplayPage,
178 ConfirmDataChange
179 },
180 {
181 EFI_HII_POPUP_PROTOCOL_REVISION,
182 CreatePopup
183 }
184 };
185
186
187 /**
188 Get the string based on the StringId and HII Package List Handle.
189
190 @param Token The String's ID.
191 @param HiiHandle The package list in the HII database to search for
192 the specified string.
193
194 @return The output string.
195
196 **/
197 CHAR16 *
198 GetToken (
199 IN EFI_STRING_ID Token,
200 IN EFI_HII_HANDLE HiiHandle
201 )
202 {
203 EFI_STRING String;
204
205 String = HiiGetString (HiiHandle, Token, NULL);
206 if (String == NULL) {
207 String = AllocateCopyPool (StrSize (mUnknownString), mUnknownString);
208 ASSERT (String != NULL);
209 }
210
211 return (CHAR16 *) String;
212 }
213
214
215 /**
216 Initialize the HII String Token to the correct values.
217
218 **/
219 VOID
220 InitializeDisplayStrings (
221 VOID
222 )
223 {
224 gReconnectConfirmChanges = GetToken (STRING_TOKEN (RECONNECT_CONFIRM_CHANGES), gHiiHandle);
225 mUnknownString = GetToken (STRING_TOKEN (UNKNOWN_STRING), gHiiHandle);
226 gSaveFailed = GetToken (STRING_TOKEN (SAVE_FAILED), gHiiHandle);
227 gNoSubmitIfFailed = GetToken (STRING_TOKEN (NO_SUBMIT_IF_CHECK_FAILED), gHiiHandle);
228 gReconnectFail = GetToken (STRING_TOKEN (RECONNECT_FAILED), gHiiHandle);
229 gReconnectRequired = GetToken (STRING_TOKEN (RECONNECT_REQUIRED), gHiiHandle);
230 gChangesOpt = GetToken (STRING_TOKEN (RECONNECT_CHANGES_OPTIONS), gHiiHandle);
231 gSaveProcess = GetToken (STRING_TOKEN (DISCARD_OR_JUMP), gHiiHandle);
232 gSaveNoSubmitProcess = GetToken (STRING_TOKEN (DISCARD_OR_CHECK), gHiiHandle);
233 gDiscardChange = GetToken (STRING_TOKEN (DISCARD_OR_JUMP_DISCARD), gHiiHandle);
234 gJumpToFormSet = GetToken (STRING_TOKEN (DISCARD_OR_JUMP_JUMP), gHiiHandle);
235 gCheckError = GetToken (STRING_TOKEN (DISCARD_OR_CHECK_CHECK), gHiiHandle);
236 gPromptForData = GetToken (STRING_TOKEN (PROMPT_FOR_DATA), gHiiHandle);
237 gPromptForPassword = GetToken (STRING_TOKEN (PROMPT_FOR_PASSWORD), gHiiHandle);
238 gPromptForNewPassword = GetToken (STRING_TOKEN (PROMPT_FOR_NEW_PASSWORD), gHiiHandle);
239 gConfirmPassword = GetToken (STRING_TOKEN (CONFIRM_PASSWORD), gHiiHandle);
240 gConfirmError = GetToken (STRING_TOKEN (CONFIRM_ERROR), gHiiHandle);
241 gPassowordInvalid = GetToken (STRING_TOKEN (PASSWORD_INVALID), gHiiHandle);
242 gPressEnter = GetToken (STRING_TOKEN (PRESS_ENTER), gHiiHandle);
243 gEmptyString = GetToken (STRING_TOKEN (EMPTY_STRING), gHiiHandle);
244 gMiniString = GetToken (STRING_TOKEN (MINI_STRING), gHiiHandle);
245 gOptionMismatch = GetToken (STRING_TOKEN (OPTION_MISMATCH), gHiiHandle);
246 gFormSuppress = GetToken (STRING_TOKEN (FORM_SUPPRESSED), gHiiHandle);
247 gProtocolNotFound = GetToken (STRING_TOKEN (PROTOCOL_NOT_FOUND), gHiiHandle);
248 gFormNotFound = GetToken (STRING_TOKEN (STATUS_BROWSER_FORM_NOT_FOUND), gHiiHandle);
249 gNoSubmitIf = GetToken (STRING_TOKEN (STATUS_BROWSER_NO_SUBMIT_IF), gHiiHandle);
250 gBrowserError = GetToken (STRING_TOKEN (STATUS_BROWSER_ERROR), gHiiHandle);
251 gConfirmDefaultMsg = GetToken (STRING_TOKEN (CONFIRM_DEFAULT_MESSAGE), gHiiHandle);
252 gConfirmDiscardMsg = GetToken (STRING_TOKEN (CONFIRM_DISCARD_MESSAGE), gHiiHandle);
253 gConfirmSubmitMsg = GetToken (STRING_TOKEN (CONFIRM_SUBMIT_MESSAGE), gHiiHandle);
254 gConfirmResetMsg = GetToken (STRING_TOKEN (CONFIRM_RESET_MESSAGE), gHiiHandle);
255 gConfirmExitMsg = GetToken (STRING_TOKEN (CONFIRM_EXIT_MESSAGE), gHiiHandle);
256 gConfirmDefaultMsg2nd = GetToken (STRING_TOKEN (CONFIRM_DEFAULT_MESSAGE_2ND), gHiiHandle);
257 gConfirmSubmitMsg2nd = GetToken (STRING_TOKEN (CONFIRM_SUBMIT_MESSAGE_2ND), gHiiHandle);
258 gConfirmResetMsg2nd = GetToken (STRING_TOKEN (CONFIRM_RESET_MESSAGE_2ND), gHiiHandle);
259 gConfirmExitMsg2nd = GetToken (STRING_TOKEN (CONFIRM_EXIT_MESSAGE_2ND), gHiiHandle);
260 gConfirmOpt = GetToken (STRING_TOKEN (CONFIRM_OPTION), gHiiHandle);
261 gConfirmOptYes = GetToken (STRING_TOKEN (CONFIRM_OPTION_YES), gHiiHandle);
262 gConfirmOptNo = GetToken (STRING_TOKEN (CONFIRM_OPTION_NO), gHiiHandle);
263 gConfirmOptOk = GetToken (STRING_TOKEN (CONFIRM_OPTION_OK), gHiiHandle);
264 gConfirmOptCancel = GetToken (STRING_TOKEN (CONFIRM_OPTION_CANCEL), gHiiHandle);
265 gYesOption = GetToken (STRING_TOKEN (YES_SELECTABLE_OPTION), gHiiHandle);
266 gNoOption = GetToken (STRING_TOKEN (NO_SELECTABLE_OPTION), gHiiHandle);
267 gOkOption = GetToken (STRING_TOKEN (OK_SELECTABLE_OPTION), gHiiHandle);
268 gCancelOption = GetToken (STRING_TOKEN (CANCEL_SELECTABLE_OPTION), gHiiHandle);
269 gErrorPopup = GetToken (STRING_TOKEN (ERROR_POPUP_STRING), gHiiHandle);
270 gWarningPopup = GetToken (STRING_TOKEN (WARNING_POPUP_STRING), gHiiHandle);
271 gInfoPopup = GetToken (STRING_TOKEN (INFO_POPUP_STRING), gHiiHandle);
272 gConfirmMsgConnect = GetToken (STRING_TOKEN (CONFIRM_OPTION_CONNECT), gHiiHandle);
273 gConfirmMsgEnd = GetToken (STRING_TOKEN (CONFIRM_OPTION_END), gHiiHandle);
274 gPasswordUnsupported = GetToken (STRING_TOKEN (PASSWORD_NOT_SUPPORTED ), gHiiHandle);
275 }
276
277 /**
278 Free up the resource allocated for all strings required
279 by Setup Browser.
280
281 **/
282 VOID
283 FreeDisplayStrings (
284 VOID
285 )
286 {
287 FreePool (mUnknownString);
288 FreePool (gEmptyString);
289 FreePool (gSaveFailed);
290 FreePool (gNoSubmitIfFailed);
291 FreePool (gReconnectFail);
292 FreePool (gReconnectRequired);
293 FreePool (gChangesOpt);
294 FreePool (gReconnectConfirmChanges);
295 FreePool (gSaveProcess);
296 FreePool (gSaveNoSubmitProcess);
297 FreePool (gDiscardChange);
298 FreePool (gJumpToFormSet);
299 FreePool (gCheckError);
300 FreePool (gPromptForData);
301 FreePool (gPromptForPassword);
302 FreePool (gPromptForNewPassword);
303 FreePool (gConfirmPassword);
304 FreePool (gConfirmError);
305 FreePool (gPassowordInvalid);
306 FreePool (gPressEnter);
307 FreePool (gMiniString);
308 FreePool (gOptionMismatch);
309 FreePool (gFormSuppress);
310 FreePool (gProtocolNotFound);
311 FreePool (gBrowserError);
312 FreePool (gNoSubmitIf);
313 FreePool (gFormNotFound);
314 FreePool (gConfirmDefaultMsg);
315 FreePool (gConfirmSubmitMsg);
316 FreePool (gConfirmDiscardMsg);
317 FreePool (gConfirmResetMsg);
318 FreePool (gConfirmExitMsg);
319 FreePool (gConfirmDefaultMsg2nd);
320 FreePool (gConfirmSubmitMsg2nd);
321 FreePool (gConfirmResetMsg2nd);
322 FreePool (gConfirmExitMsg2nd);
323 FreePool (gConfirmOpt);
324 FreePool (gConfirmOptYes);
325 FreePool (gConfirmOptNo);
326 FreePool (gConfirmOptOk);
327 FreePool (gConfirmOptCancel);
328 FreePool (gYesOption);
329 FreePool (gNoOption);
330 FreePool (gOkOption);
331 FreePool (gCancelOption);
332 FreePool (gErrorPopup);
333 FreePool (gWarningPopup);
334 FreePool (gInfoPopup);
335 FreePool (gConfirmMsgConnect);
336 FreePool (gConfirmMsgEnd);
337 FreePool (gPasswordUnsupported);
338 }
339
340 /**
341 Get prompt string id from the opcode data buffer.
342
343 @param OpCode The input opcode buffer.
344
345 @return The prompt string id.
346
347 **/
348 EFI_STRING_ID
349 GetPrompt (
350 IN EFI_IFR_OP_HEADER *OpCode
351 )
352 {
353 EFI_IFR_STATEMENT_HEADER *Header;
354
355 if (OpCode->Length <= sizeof (EFI_IFR_OP_HEADER)) {
356 return 0;
357 }
358
359 Header = (EFI_IFR_STATEMENT_HEADER *) (OpCode + 1);
360
361 return Header->Prompt;
362 }
363
364 /**
365 Get the supported width for a particular op-code
366
367 @param MenuOption The menu option.
368 @param AdjustWidth The width which is saved for the space.
369
370 @return Returns the number of CHAR16 characters that is support.
371
372 **/
373 UINT16
374 GetWidth (
375 IN UI_MENU_OPTION *MenuOption,
376 OUT UINT16 *AdjustWidth
377 )
378 {
379 CHAR16 *String;
380 UINTN Size;
381 EFI_IFR_TEXT *TestOp;
382 UINT16 ReturnWidth;
383 FORM_DISPLAY_ENGINE_STATEMENT *Statement;
384
385 Statement = MenuOption->ThisTag;
386
387 //
388 // For modal form, clean the entire row.
389 //
390 if ((gFormData->Attribute & HII_DISPLAY_MODAL) != 0) {
391 if (AdjustWidth != NULL) {
392 *AdjustWidth = LEFT_SKIPPED_COLUMNS;
393 }
394 return (UINT16)(gStatementDimensions.RightColumn - gStatementDimensions.LeftColumn - 2 * (gModalSkipColumn + LEFT_SKIPPED_COLUMNS));
395 }
396
397 Size = 0;
398
399 //
400 // See if the second text parameter is really NULL
401 //
402 if (Statement->OpCode->OpCode == EFI_IFR_TEXT_OP) {
403 TestOp = (EFI_IFR_TEXT *) Statement->OpCode;
404 if (TestOp->TextTwo != 0) {
405 String = GetToken (TestOp->TextTwo, gFormData->HiiHandle);
406 Size = StrLen (String);
407 FreePool (String);
408 }
409 }
410
411 if ((Statement->OpCode->OpCode == EFI_IFR_SUBTITLE_OP) ||
412 (Statement->OpCode->OpCode == EFI_IFR_REF_OP) ||
413 (Statement->OpCode->OpCode == EFI_IFR_PASSWORD_OP) ||
414 (Statement->OpCode->OpCode == EFI_IFR_ACTION_OP) ||
415 (Statement->OpCode->OpCode == EFI_IFR_RESET_BUTTON_OP) ||
416 //
417 // Allow a wide display if text op-code and no secondary text op-code
418 //
419 ((Statement->OpCode->OpCode == EFI_IFR_TEXT_OP) && (Size == 0))
420 ) {
421
422 //
423 // Return the space width.
424 //
425 if (AdjustWidth != NULL) {
426 *AdjustWidth = 2;
427 }
428 //
429 // Keep consistent with current behavior.
430 //
431 ReturnWidth = (UINT16) (gPromptBlockWidth + gOptionBlockWidth - 2);
432 } else {
433 if (AdjustWidth != NULL) {
434 *AdjustWidth = 1;
435 }
436
437 ReturnWidth = (UINT16) (gPromptBlockWidth - 1);
438 }
439
440 //
441 // For nest in statement, should the subtitle indent.
442 //
443 if (MenuOption->NestInStatement) {
444 ReturnWidth -= SUBTITLE_INDENT;
445 }
446
447 return ReturnWidth;
448 }
449
450 /**
451 Will copy LineWidth amount of a string in the OutputString buffer and return the
452 number of CHAR16 characters that were copied into the OutputString buffer.
453 The output string format is:
454 Glyph Info + String info + '\0'.
455
456 In the code, it deals \r,\n,\r\n same as \n\r, also it not process the \r or \g.
457
458 @param InputString String description for this option.
459 @param LineWidth Width of the desired string to extract in CHAR16
460 characters
461 @param GlyphWidth The glyph width of the begin of the char in the string.
462 @param Index Where in InputString to start the copy process
463 @param OutputString Buffer to copy the string into
464
465 @return Returns the number of CHAR16 characters that were copied into the OutputString
466 buffer, include extra glyph info and '\0' info.
467
468 **/
469 UINT16
470 GetLineByWidth (
471 IN CHAR16 *InputString,
472 IN UINT16 LineWidth,
473 IN OUT UINT16 *GlyphWidth,
474 IN OUT UINTN *Index,
475 OUT CHAR16 **OutputString
476 )
477 {
478 UINT16 StrOffset;
479 UINT16 GlyphOffset;
480 UINT16 OriginalGlyphWidth;
481 BOOLEAN ReturnFlag;
482 UINT16 LastSpaceOffset;
483 UINT16 LastGlyphWidth;
484
485 if (InputString == NULL || Index == NULL || OutputString == NULL) {
486 return 0;
487 }
488
489 if (LineWidth == 0 || *GlyphWidth == 0) {
490 return 0;
491 }
492
493 //
494 // Save original glyph width.
495 //
496 OriginalGlyphWidth = *GlyphWidth;
497 LastGlyphWidth = OriginalGlyphWidth;
498 ReturnFlag = FALSE;
499 LastSpaceOffset = 0;
500
501 //
502 // 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.
503 // To avoid displaying this empty line in screen, just skip the two CHARs here.
504 //
505 if ((InputString[*Index] == NARROW_CHAR) && (InputString[*Index + 1] == CHAR_CARRIAGE_RETURN)) {
506 *Index = *Index + 2;
507 }
508
509 //
510 // Fast-forward the string and see if there is a carriage-return in the string
511 //
512 for (StrOffset = 0, GlyphOffset = 0; GlyphOffset <= LineWidth; StrOffset++) {
513 switch (InputString[*Index + StrOffset]) {
514 case NARROW_CHAR:
515 *GlyphWidth = 1;
516 break;
517
518 case WIDE_CHAR:
519 *GlyphWidth = 2;
520 break;
521
522 case CHAR_CARRIAGE_RETURN:
523 case CHAR_LINEFEED:
524 case CHAR_NULL:
525 ReturnFlag = TRUE;
526 break;
527
528 default:
529 GlyphOffset = GlyphOffset + *GlyphWidth;
530
531 //
532 // Record the last space info in this line. Will be used in rewind.
533 //
534 if ((InputString[*Index + StrOffset] == CHAR_SPACE) && (GlyphOffset <= LineWidth)) {
535 LastSpaceOffset = StrOffset;
536 LastGlyphWidth = *GlyphWidth;
537 }
538 break;
539 }
540
541 if (ReturnFlag) {
542 break;
543 }
544 }
545
546 //
547 // Rewind the string from the maximum size until we see a space to break the line
548 //
549 if (GlyphOffset > LineWidth) {
550 //
551 // Rewind the string to last space char in this line.
552 //
553 if (LastSpaceOffset != 0) {
554 StrOffset = LastSpaceOffset;
555 *GlyphWidth = LastGlyphWidth;
556 } else {
557 //
558 // Roll back to last char in the line width.
559 //
560 StrOffset--;
561 }
562 }
563
564 //
565 // The CHAR_NULL has process last time, this time just return 0 to stand for the end.
566 //
567 if (StrOffset == 0 && (InputString[*Index + StrOffset] == CHAR_NULL)) {
568 return 0;
569 }
570
571 //
572 // Need extra glyph info and '\0' info, so +2.
573 //
574 *OutputString = AllocateZeroPool ((StrOffset + 2) * sizeof(CHAR16));
575 if (*OutputString == NULL) {
576 return 0;
577 }
578
579 //
580 // Save the glyph info at the begin of the string, will used by Print function.
581 //
582 if (OriginalGlyphWidth == 1) {
583 *(*OutputString) = NARROW_CHAR;
584 } else {
585 *(*OutputString) = WIDE_CHAR;
586 }
587
588 CopyMem ((*OutputString) + 1, &InputString[*Index], StrOffset * sizeof(CHAR16));
589
590 if (InputString[*Index + StrOffset] == CHAR_SPACE) {
591 //
592 // Skip the space info at the begin of next line.
593 //
594 *Index = (UINT16) (*Index + StrOffset + 1);
595 } else if (InputString[*Index + StrOffset] == CHAR_LINEFEED) {
596 //
597 // Skip the /n or /n/r info.
598 //
599 if (InputString[*Index + StrOffset + 1] == CHAR_CARRIAGE_RETURN) {
600 *Index = (UINT16) (*Index + StrOffset + 2);
601 } else {
602 *Index = (UINT16) (*Index + StrOffset + 1);
603 }
604 } else if (InputString[*Index + StrOffset] == CHAR_CARRIAGE_RETURN) {
605 //
606 // Skip the /r or /r/n info.
607 //
608 if (InputString[*Index + StrOffset + 1] == CHAR_LINEFEED) {
609 *Index = (UINT16) (*Index + StrOffset + 2);
610 } else {
611 *Index = (UINT16) (*Index + StrOffset + 1);
612 }
613 } else {
614 *Index = (UINT16) (*Index + StrOffset);
615 }
616
617 //
618 // Include extra glyph info and '\0' info, so +2.
619 //
620 return StrOffset + 2;
621 }
622
623 /**
624 Add one menu option by specified description and context.
625
626 @param Statement Statement of this Menu Option.
627 @param MenuItemCount The index for this Option in the Menu.
628 @param NestIn Whether this statement is nest in another statement.
629
630 **/
631 VOID
632 UiAddMenuOption (
633 IN FORM_DISPLAY_ENGINE_STATEMENT *Statement,
634 IN UINT16 *MenuItemCount,
635 IN BOOLEAN NestIn
636 )
637 {
638 UI_MENU_OPTION *MenuOption;
639 UINTN Index;
640 UINTN Count;
641 UINT16 NumberOfLines;
642 UINT16 GlyphWidth;
643 UINT16 Width;
644 UINTN ArrayEntry;
645 CHAR16 *OutputString;
646 EFI_STRING_ID PromptId;
647
648 NumberOfLines = 1;
649 ArrayEntry = 0;
650 GlyphWidth = 1;
651 Count = 1;
652 MenuOption = NULL;
653
654 PromptId = GetPrompt (Statement->OpCode);
655 ASSERT (PromptId != 0);
656
657 if (Statement->OpCode->OpCode == EFI_IFR_DATE_OP || Statement->OpCode->OpCode == EFI_IFR_TIME_OP) {
658 Count = 3;
659 }
660
661 for (Index = 0; Index < Count; Index++) {
662 MenuOption = AllocateZeroPool (sizeof (UI_MENU_OPTION));
663 ASSERT (MenuOption);
664
665 MenuOption->Signature = UI_MENU_OPTION_SIGNATURE;
666 MenuOption->Description = GetToken (PromptId, gFormData->HiiHandle);
667 MenuOption->Handle = gFormData->HiiHandle;
668 MenuOption->ThisTag = Statement;
669 MenuOption->NestInStatement = NestIn;
670 MenuOption->EntryNumber = *MenuItemCount;
671
672 MenuOption->Sequence = Index;
673
674 if ((Statement->Attribute & HII_DISPLAY_GRAYOUT) != 0) {
675 MenuOption->GrayOut = TRUE;
676 } else {
677 MenuOption->GrayOut = FALSE;
678 }
679
680 if ((Statement->Attribute & HII_DISPLAY_LOCK) != 0 || (gFormData->Attribute & HII_DISPLAY_LOCK) != 0) {
681 MenuOption->GrayOut = TRUE;
682 }
683
684 //
685 // If the form or the question has the lock attribute, deal same as grayout.
686 //
687 if ((gFormData->Attribute & HII_DISPLAY_LOCK) != 0 || (Statement->Attribute & HII_DISPLAY_LOCK) != 0) {
688 MenuOption->GrayOut = TRUE;
689 }
690
691 switch (Statement->OpCode->OpCode) {
692 case EFI_IFR_ORDERED_LIST_OP:
693 case EFI_IFR_ONE_OF_OP:
694 case EFI_IFR_NUMERIC_OP:
695 case EFI_IFR_TIME_OP:
696 case EFI_IFR_DATE_OP:
697 case EFI_IFR_CHECKBOX_OP:
698 case EFI_IFR_PASSWORD_OP:
699 case EFI_IFR_STRING_OP:
700 //
701 // User could change the value of these items
702 //
703 MenuOption->IsQuestion = TRUE;
704 break;
705 case EFI_IFR_TEXT_OP:
706 if (FeaturePcdGet (PcdBrowserGrayOutTextStatement)) {
707 //
708 // Initializing GrayOut option as TRUE for Text setup options
709 // so that those options will be Gray in colour and un selectable.
710 //
711 MenuOption->GrayOut = TRUE;
712 }
713 break;
714 default:
715 MenuOption->IsQuestion = FALSE;
716 break;
717 }
718
719 if ((Statement->Attribute & HII_DISPLAY_READONLY) != 0) {
720 MenuOption->ReadOnly = TRUE;
721 if (FeaturePcdGet (PcdBrowerGrayOutReadOnlyMenu)) {
722 MenuOption->GrayOut = TRUE;
723 }
724 }
725
726 if (Index == 0 &&
727 (Statement->OpCode->OpCode != EFI_IFR_DATE_OP) &&
728 (Statement->OpCode->OpCode != EFI_IFR_TIME_OP)) {
729 Width = GetWidth (MenuOption, NULL);
730 for (; GetLineByWidth (MenuOption->Description, Width, &GlyphWidth,&ArrayEntry, &OutputString) != 0x0000;) {
731 //
732 // If there is more string to process print on the next row and increment the Skip value
733 //
734 if (StrLen (&MenuOption->Description[ArrayEntry]) != 0) {
735 NumberOfLines++;
736 }
737 FreePool (OutputString);
738 }
739 } else {
740 //
741 // Add three MenuOptions for Date/Time
742 // Data format : [01/02/2004] [11:22:33]
743 // Line number : 0 0 1 0 0 1
744 //
745 NumberOfLines = 0;
746 }
747
748 if (Index == 2) {
749 //
750 // Override LineNumber for the MenuOption in Date/Time sequence
751 //
752 MenuOption->Skip = 1;
753 } else {
754 MenuOption->Skip = NumberOfLines;
755 }
756
757 InsertTailList (&gMenuOption, &MenuOption->Link);
758 }
759
760 (*MenuItemCount)++;
761 }
762
763 /**
764 Create the menu list base on the form data info.
765
766 **/
767 VOID
768 ConvertStatementToMenu (
769 VOID
770 )
771 {
772 UINT16 MenuItemCount;
773 LIST_ENTRY *Link;
774 LIST_ENTRY *NestLink;
775 FORM_DISPLAY_ENGINE_STATEMENT *Statement;
776 FORM_DISPLAY_ENGINE_STATEMENT *NestStatement;
777
778 MenuItemCount = 0;
779 InitializeListHead (&gMenuOption);
780
781 Link = GetFirstNode (&gFormData->StatementListHead);
782 while (!IsNull (&gFormData->StatementListHead, Link)) {
783 Statement = FORM_DISPLAY_ENGINE_STATEMENT_FROM_LINK (Link);
784 Link = GetNextNode (&gFormData->StatementListHead, Link);
785
786 //
787 // Skip the opcode not recognized by Display core.
788 //
789 if (Statement->OpCode->OpCode == EFI_IFR_GUID_OP) {
790 continue;
791 }
792
793 UiAddMenuOption (Statement, &MenuItemCount, FALSE);
794
795 //
796 // Check the statement nest in this host statement.
797 //
798 NestLink = GetFirstNode (&Statement->NestStatementList);
799 while (!IsNull (&Statement->NestStatementList, NestLink)) {
800 NestStatement = FORM_DISPLAY_ENGINE_STATEMENT_FROM_LINK (NestLink);
801 NestLink = GetNextNode (&Statement->NestStatementList, NestLink);
802
803 //
804 // Skip the opcode not recognized by Display core.
805 //
806 if (NestStatement->OpCode->OpCode == EFI_IFR_GUID_OP) {
807 continue;
808 }
809
810 UiAddMenuOption (NestStatement, &MenuItemCount, TRUE);
811 }
812 }
813 }
814
815 /**
816 Count the storage space of a Unicode string.
817
818 This function handles the Unicode string with NARROW_CHAR
819 and WIDE_CHAR control characters. NARROW_HCAR and WIDE_CHAR
820 does not count in the resultant output. If a WIDE_CHAR is
821 hit, then 2 Unicode character will consume an output storage
822 space with size of CHAR16 till a NARROW_CHAR is hit.
823
824 If String is NULL, then ASSERT ().
825
826 @param String The input string to be counted.
827
828 @return Storage space for the input string.
829
830 **/
831 UINTN
832 GetStringWidth (
833 IN CHAR16 *String
834 )
835 {
836 UINTN Index;
837 UINTN Count;
838 UINTN IncrementValue;
839
840 ASSERT (String != NULL);
841 if (String == NULL) {
842 return 0;
843 }
844
845 Index = 0;
846 Count = 0;
847 IncrementValue = 1;
848
849 do {
850 //
851 // Advance to the null-terminator or to the first width directive
852 //
853 for (;
854 (String[Index] != NARROW_CHAR) && (String[Index] != WIDE_CHAR) && (String[Index] != 0);
855 Index++, Count = Count + IncrementValue
856 )
857 ;
858
859 //
860 // We hit the null-terminator, we now have a count
861 //
862 if (String[Index] == 0) {
863 break;
864 }
865 //
866 // We encountered a narrow directive - strip it from the size calculation since it doesn't get printed
867 // and also set the flag that determines what we increment by.(if narrow, increment by 1, if wide increment by 2)
868 //
869 if (String[Index] == NARROW_CHAR) {
870 //
871 // Skip to the next character
872 //
873 Index++;
874 IncrementValue = 1;
875 } else {
876 //
877 // Skip to the next character
878 //
879 Index++;
880 IncrementValue = 2;
881 }
882 } while (String[Index] != 0);
883
884 //
885 // Increment by one to include the null-terminator in the size
886 //
887 Count++;
888
889 return Count * sizeof (CHAR16);
890 }
891
892 /**
893 Base on the input option string to update the skip value for a menu option.
894
895 @param MenuOption The MenuOption to be checked.
896 @param OptionString The input option string.
897
898 **/
899 VOID
900 UpdateSkipInfoForMenu (
901 IN UI_MENU_OPTION *MenuOption,
902 IN CHAR16 *OptionString
903 )
904 {
905 UINTN Index;
906 UINT16 Width;
907 UINTN Row;
908 CHAR16 *OutputString;
909 UINT16 GlyphWidth;
910
911 Width = (UINT16) gOptionBlockWidth - 1;
912 GlyphWidth = 1;
913 Row = 1;
914
915 for (Index = 0; GetLineByWidth (OptionString, Width, &GlyphWidth, &Index, &OutputString) != 0x0000;) {
916 if (StrLen (&OptionString[Index]) != 0) {
917 Row++;
918 }
919
920 FreePool (OutputString);
921 }
922
923 if ((Row > MenuOption->Skip) &&
924 (MenuOption->ThisTag->OpCode->OpCode != EFI_IFR_DATE_OP) &&
925 (MenuOption->ThisTag->OpCode->OpCode != EFI_IFR_TIME_OP)) {
926 MenuOption->Skip = Row;
927 }
928 }
929
930 /**
931 Update display lines for a Menu Option.
932
933 @param MenuOption The MenuOption to be checked.
934
935 **/
936 VOID
937 UpdateOptionSkipLines (
938 IN UI_MENU_OPTION *MenuOption
939 )
940 {
941 CHAR16 *OptionString;
942
943 OptionString = NULL;
944
945 ProcessOptions (MenuOption, FALSE, &OptionString, TRUE);
946 if (OptionString != NULL) {
947 UpdateSkipInfoForMenu (MenuOption, OptionString);
948
949 FreePool (OptionString);
950 }
951
952 if ((MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_TEXT_OP) && (((EFI_IFR_TEXT*)MenuOption->ThisTag->OpCode)->TextTwo != 0)) {
953 OptionString = GetToken (((EFI_IFR_TEXT*)MenuOption->ThisTag->OpCode)->TextTwo, gFormData->HiiHandle);
954
955 if (OptionString != NULL) {
956 UpdateSkipInfoForMenu (MenuOption, OptionString);
957
958 FreePool (OptionString);
959 }
960 }
961 }
962
963 /**
964 Check whether this Menu Option could be print.
965
966 Check Prompt string, option string or text two string not NULL.
967
968 This is an internal function.
969
970 @param MenuOption The MenuOption to be checked.
971
972 @retval TRUE This Menu Option is printable.
973 @retval FALSE This Menu Option could not be printable.
974
975 **/
976 BOOLEAN
977 PrintableMenu (
978 UI_MENU_OPTION *MenuOption
979 )
980 {
981 EFI_STATUS Status;
982 EFI_STRING OptionString;
983
984 OptionString = NULL;
985
986 if (MenuOption->Description[0] != '\0') {
987 return TRUE;
988 }
989
990 Status = ProcessOptions (MenuOption, FALSE, &OptionString, FALSE);
991 if (EFI_ERROR (Status)) {
992 return FALSE;
993 }
994 if (OptionString != NULL && OptionString[0] != '\0') {
995 FreePool (OptionString);
996 return TRUE;
997 }
998
999 if ((MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_TEXT_OP) && (((EFI_IFR_TEXT*)MenuOption->ThisTag->OpCode)->TextTwo != 0)) {
1000 OptionString = GetToken (((EFI_IFR_TEXT*)MenuOption->ThisTag->OpCode)->TextTwo, gFormData->HiiHandle);
1001 ASSERT (OptionString != NULL);
1002 if (OptionString[0] != '\0'){
1003 FreePool (OptionString);
1004 return TRUE;
1005 }
1006 }
1007
1008 return FALSE;
1009 }
1010
1011 /**
1012 Check whether this Menu Option could be highlighted.
1013
1014 This is an internal function.
1015
1016 @param MenuOption The MenuOption to be checked.
1017
1018 @retval TRUE This Menu Option is selectable.
1019 @retval FALSE This Menu Option could not be selected.
1020
1021 **/
1022 BOOLEAN
1023 IsSelectable (
1024 UI_MENU_OPTION *MenuOption
1025 )
1026 {
1027 if ((MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_SUBTITLE_OP) ||
1028 MenuOption->GrayOut || MenuOption->ReadOnly || !PrintableMenu (MenuOption)) {
1029 return FALSE;
1030 } else {
1031 return TRUE;
1032 }
1033 }
1034
1035 /**
1036 Move to next selectable statement.
1037
1038 This is an internal function.
1039
1040 @param GoUp The navigation direction. TRUE: up, FALSE: down.
1041 @param CurrentPosition Current position.
1042 @param GapToTop Gap position to top or bottom.
1043 @param FindInForm Whether find menu in current form or beyond.
1044
1045 @return The row distance from current MenuOption to next selectable MenuOption.
1046
1047 @retval -1 Reach the begin of the menu, still can't find the selectable menu.
1048 @retval Value Find the selectable menu, maybe the truly selectable, maybe the
1049 first menu showing beyond current form or last menu showing in
1050 current form.
1051 The value is the line number between the new selected menu and the
1052 current select menu, not include the new selected menu.
1053
1054 **/
1055 INTN
1056 MoveToNextStatement (
1057 IN BOOLEAN GoUp,
1058 IN OUT LIST_ENTRY **CurrentPosition,
1059 IN UINTN GapToTop,
1060 IN BOOLEAN FindInForm
1061 )
1062 {
1063 INTN Distance;
1064 LIST_ENTRY *Pos;
1065 UI_MENU_OPTION *NextMenuOption;
1066 UI_MENU_OPTION *PreMenuOption;
1067
1068 Distance = 0;
1069 Pos = *CurrentPosition;
1070
1071 if (Pos == &gMenuOption) {
1072 return -1;
1073 }
1074
1075 PreMenuOption = MENU_OPTION_FROM_LINK (Pos);
1076
1077 while (TRUE) {
1078 NextMenuOption = MENU_OPTION_FROM_LINK (Pos);
1079 //
1080 // NextMenuOption->Row == 0 means this menu has not calculate
1081 // the NextMenuOption->Skip value yet, just calculate here.
1082 //
1083 if (NextMenuOption->Row == 0) {
1084 UpdateOptionSkipLines (NextMenuOption);
1085 }
1086
1087 //
1088 // Check whether the menu is beyond current showing form,
1089 // return the first one beyond the showing form.
1090 //
1091 if ((UINTN) Distance + NextMenuOption->Skip > GapToTop) {
1092 if (FindInForm) {
1093 NextMenuOption = PreMenuOption;
1094 }
1095 break;
1096 }
1097
1098 //
1099 // return the selectable menu in the showing form.
1100 //
1101 if (IsSelectable (NextMenuOption)) {
1102 break;
1103 }
1104
1105 Distance += NextMenuOption->Skip;
1106
1107 //
1108 // Arrive at begin of the menu list.
1109 //
1110 if ((GoUp ? Pos->BackLink : Pos->ForwardLink) == &gMenuOption) {
1111 Distance = -1;
1112 break;
1113 }
1114
1115 Pos = (GoUp ? Pos->BackLink : Pos->ForwardLink);
1116 PreMenuOption = NextMenuOption;
1117 }
1118
1119 *CurrentPosition = &NextMenuOption->Link;
1120 return Distance;
1121 }
1122
1123
1124 /**
1125 Process option string for date/time opcode.
1126
1127 @param MenuOption Menu option point to date/time.
1128 @param OptionString Option string input for process.
1129 @param AddOptCol Whether need to update MenuOption->OptCol.
1130
1131 **/
1132 VOID
1133 ProcessStringForDateTime (
1134 UI_MENU_OPTION *MenuOption,
1135 CHAR16 *OptionString,
1136 BOOLEAN AddOptCol
1137 )
1138 {
1139 UINTN Index;
1140 UINTN Count;
1141 FORM_DISPLAY_ENGINE_STATEMENT *Statement;
1142 EFI_IFR_DATE *Date;
1143 EFI_IFR_TIME *Time;
1144
1145 ASSERT (MenuOption != NULL && OptionString != NULL);
1146
1147 Statement = MenuOption->ThisTag;
1148 Date = NULL;
1149 Time = NULL;
1150 if (Statement->OpCode->OpCode == EFI_IFR_DATE_OP) {
1151 Date = (EFI_IFR_DATE *) Statement->OpCode;
1152 } else if (Statement->OpCode->OpCode == EFI_IFR_TIME_OP) {
1153 Time = (EFI_IFR_TIME *) Statement->OpCode;
1154 }
1155
1156 //
1157 // If leading spaces on OptionString - remove the spaces
1158 //
1159 for (Index = 0; OptionString[Index] == L' '; Index++) {
1160 //
1161 // Base on the blockspace to get the option column info.
1162 //
1163 if (AddOptCol) {
1164 MenuOption->OptCol++;
1165 }
1166 }
1167
1168 for (Count = 0; OptionString[Index] != CHAR_NULL; Index++) {
1169 OptionString[Count] = OptionString[Index];
1170 Count++;
1171 }
1172 OptionString[Count] = CHAR_NULL;
1173
1174 //
1175 // Enable to suppress field in the opcode base on the flag.
1176 //
1177 if (Statement->OpCode->OpCode == EFI_IFR_DATE_OP) {
1178 //
1179 // OptionString format is: <**: **: ****>
1180 // |month|day|year|
1181 // 4 3 5
1182 //
1183 if ((Date->Flags & EFI_QF_DATE_MONTH_SUPPRESS) && (MenuOption->Sequence == 0)) {
1184 //
1185 // At this point, only "<**:" in the optionstring.
1186 // Clean the day's ** field, after clean, the format is "< :"
1187 //
1188 SetUnicodeMem (&OptionString[1], 2, L' ');
1189 } else if ((Date->Flags & EFI_QF_DATE_DAY_SUPPRESS) && (MenuOption->Sequence == 1)) {
1190 //
1191 // At this point, only "**:" in the optionstring.
1192 // Clean the month's "**" field, after clean, the format is " :"
1193 //
1194 SetUnicodeMem (&OptionString[0], 2, L' ');
1195 } else if ((Date->Flags & EFI_QF_DATE_YEAR_SUPPRESS) && (MenuOption->Sequence == 2)) {
1196 //
1197 // At this point, only "****>" in the optionstring.
1198 // Clean the year's "****" field, after clean, the format is " >"
1199 //
1200 SetUnicodeMem (&OptionString[0], 4, L' ');
1201 }
1202 } else if (Statement->OpCode->OpCode == EFI_IFR_TIME_OP) {
1203 //
1204 // OptionString format is: <**: **: **>
1205 // |hour|minute|second|
1206 // 4 3 3
1207 //
1208 if ((Time->Flags & QF_TIME_HOUR_SUPPRESS) && (MenuOption->Sequence == 0)) {
1209 //
1210 // At this point, only "<**:" in the optionstring.
1211 // Clean the hour's ** field, after clean, the format is "< :"
1212 //
1213 SetUnicodeMem (&OptionString[1], 2, L' ');
1214 } else if ((Time->Flags & QF_TIME_MINUTE_SUPPRESS) && (MenuOption->Sequence == 1)) {
1215 //
1216 // At this point, only "**:" in the optionstring.
1217 // Clean the minute's "**" field, after clean, the format is " :"
1218 //
1219 SetUnicodeMem (&OptionString[0], 2, L' ');
1220 } else if ((Time->Flags & QF_TIME_SECOND_SUPPRESS) && (MenuOption->Sequence == 2)) {
1221 //
1222 // At this point, only "**>" in the optionstring.
1223 // Clean the second's "**" field, after clean, the format is " >"
1224 //
1225 SetUnicodeMem (&OptionString[0], 2, L' ');
1226 }
1227 }
1228 }
1229
1230
1231 /**
1232 Adjust Data and Time position accordingly.
1233 Data format : [01/02/2004] [11:22:33]
1234 Line number : 0 0 1 0 0 1
1235
1236 This is an internal function.
1237
1238 @param DirectionUp the up or down direction. False is down. True is
1239 up.
1240 @param CurrentPosition Current position. On return: Point to the last
1241 Option (Year or Second) if up; Point to the first
1242 Option (Month or Hour) if down.
1243
1244 @return Return line number to pad. It is possible that we stand on a zero-advance
1245 @return data or time opcode, so pad one line when we judge if we are going to scroll outside.
1246
1247 **/
1248 UINTN
1249 AdjustDateAndTimePosition (
1250 IN BOOLEAN DirectionUp,
1251 IN OUT LIST_ENTRY **CurrentPosition
1252 )
1253 {
1254 UINTN Count;
1255 LIST_ENTRY *NewPosition;
1256 UI_MENU_OPTION *MenuOption;
1257 UINTN PadLineNumber;
1258
1259 PadLineNumber = 0;
1260 NewPosition = *CurrentPosition;
1261 MenuOption = MENU_OPTION_FROM_LINK (NewPosition);
1262
1263 if ((MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_DATE_OP) ||
1264 (MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_TIME_OP)) {
1265 //
1266 // Calculate the distance from current position to the last Date/Time MenuOption
1267 //
1268 Count = 0;
1269 while (MenuOption->Skip == 0) {
1270 Count++;
1271 NewPosition = NewPosition->ForwardLink;
1272 MenuOption = MENU_OPTION_FROM_LINK (NewPosition);
1273 PadLineNumber = 1;
1274 }
1275
1276 NewPosition = *CurrentPosition;
1277 if (DirectionUp) {
1278 //
1279 // Since the behavior of hitting the up arrow on a Date/Time MenuOption is intended
1280 // to be one that back to the previous set of MenuOptions, we need to advance to the first
1281 // Date/Time MenuOption and leave the remaining logic in CfUiUp intact so the appropriate
1282 // checking can be done.
1283 //
1284 while (Count++ < 2) {
1285 NewPosition = NewPosition->BackLink;
1286 }
1287 } else {
1288 //
1289 // Since the behavior of hitting the down arrow on a Date/Time MenuOption is intended
1290 // to be one that progresses to the next set of MenuOptions, we need to advance to the last
1291 // Date/Time MenuOption and leave the remaining logic in CfUiDown intact so the appropriate
1292 // checking can be done.
1293 //
1294 while (Count-- > 0) {
1295 NewPosition = NewPosition->ForwardLink;
1296 }
1297 }
1298
1299 *CurrentPosition = NewPosition;
1300 }
1301
1302 return PadLineNumber;
1303 }
1304
1305 /**
1306 Get step info from numeric opcode.
1307
1308 @param[in] OpCode The input numeric op code.
1309
1310 @return step info for this opcode.
1311 **/
1312 UINT64
1313 GetFieldFromNum (
1314 IN EFI_IFR_OP_HEADER *OpCode
1315 )
1316 {
1317 EFI_IFR_NUMERIC *NumericOp;
1318 UINT64 Step;
1319
1320 NumericOp = (EFI_IFR_NUMERIC *) OpCode;
1321
1322 switch (NumericOp->Flags & EFI_IFR_NUMERIC_SIZE) {
1323 case EFI_IFR_NUMERIC_SIZE_1:
1324 Step = NumericOp->data.u8.Step;
1325 break;
1326
1327 case EFI_IFR_NUMERIC_SIZE_2:
1328 Step = NumericOp->data.u16.Step;
1329 break;
1330
1331 case EFI_IFR_NUMERIC_SIZE_4:
1332 Step = NumericOp->data.u32.Step;
1333 break;
1334
1335 case EFI_IFR_NUMERIC_SIZE_8:
1336 Step = NumericOp->data.u64.Step;
1337 break;
1338
1339 default:
1340 Step = 0;
1341 break;
1342 }
1343
1344 return Step;
1345 }
1346
1347 /**
1348 Find the registered HotKey based on KeyData.
1349
1350 @param[in] KeyData A pointer to a buffer that describes the keystroke
1351 information for the hot key.
1352
1353 @return The registered HotKey context. If no found, NULL will return.
1354 **/
1355 BROWSER_HOT_KEY *
1356 GetHotKeyFromRegisterList (
1357 IN EFI_INPUT_KEY *KeyData
1358 )
1359 {
1360 LIST_ENTRY *Link;
1361 BROWSER_HOT_KEY *HotKey;
1362
1363 Link = GetFirstNode (&gFormData->HotKeyListHead);
1364 while (!IsNull (&gFormData->HotKeyListHead, Link)) {
1365 HotKey = BROWSER_HOT_KEY_FROM_LINK (Link);
1366
1367 if (HotKey->KeyData->ScanCode == KeyData->ScanCode) {
1368 return HotKey;
1369 }
1370
1371 Link = GetNextNode (&gFormData->HotKeyListHead, Link);
1372 }
1373
1374 return NULL;
1375 }
1376
1377
1378 /**
1379 Determine if the menu is the last menu that can be selected.
1380
1381 This is an internal function.
1382
1383 @param Direction The scroll direction. False is down. True is up.
1384 @param CurrentPos The current focus.
1385
1386 @return FALSE -- the menu isn't the last menu that can be selected.
1387 @return TRUE -- the menu is the last menu that can be selected.
1388
1389 **/
1390 BOOLEAN
1391 ValueIsScroll (
1392 IN BOOLEAN Direction,
1393 IN LIST_ENTRY *CurrentPos
1394 )
1395 {
1396 LIST_ENTRY *Temp;
1397
1398 Temp = Direction ? CurrentPos->BackLink : CurrentPos->ForwardLink;
1399
1400 if (Temp == &gMenuOption) {
1401 return TRUE;
1402 }
1403
1404 return FALSE;
1405 }
1406
1407 /**
1408 Wait for a given event to fire, or for an optional timeout to expire.
1409
1410 @param Event The event to wait for
1411
1412 @retval UI_EVENT_TYPE The type of the event which is trigged.
1413
1414 **/
1415 UI_EVENT_TYPE
1416 UiWaitForEvent (
1417 IN EFI_EVENT Event
1418 )
1419 {
1420 EFI_STATUS Status;
1421 UINTN Index;
1422 UINTN EventNum;
1423 UINT64 Timeout;
1424 EFI_EVENT TimerEvent;
1425 EFI_EVENT WaitList[3];
1426 UI_EVENT_TYPE EventType;
1427
1428 TimerEvent = NULL;
1429 Timeout = FormExitTimeout(gFormData);
1430
1431 if (Timeout != 0) {
1432 Status = gBS->CreateEvent (EVT_TIMER, 0, NULL, NULL, &TimerEvent);
1433
1434 //
1435 // Set the timer event
1436 //
1437 gBS->SetTimer (
1438 TimerEvent,
1439 TimerRelative,
1440 Timeout
1441 );
1442 }
1443
1444 WaitList[0] = Event;
1445 EventNum = 1;
1446 if (gFormData->FormRefreshEvent != NULL) {
1447 WaitList[EventNum] = gFormData->FormRefreshEvent;
1448 EventNum ++;
1449 }
1450
1451 if (Timeout != 0) {
1452 WaitList[EventNum] = TimerEvent;
1453 EventNum ++;
1454 }
1455
1456 Status = gBS->WaitForEvent (EventNum, WaitList, &Index);
1457 ASSERT_EFI_ERROR (Status);
1458
1459 switch (Index) {
1460 case 0:
1461 EventType = UIEventKey;
1462 break;
1463
1464 case 1:
1465 if (gFormData->FormRefreshEvent != NULL) {
1466 EventType = UIEventDriver;
1467 } else {
1468 ASSERT (Timeout != 0 && EventNum == 2);
1469 EventType = UIEventTimeOut;
1470 }
1471 break;
1472
1473 default:
1474 ASSERT (Index == 2 && EventNum == 3);
1475 EventType = UIEventTimeOut;
1476 break;
1477 }
1478
1479 if (Timeout != 0) {
1480 gBS->CloseEvent (TimerEvent);
1481 }
1482
1483 return EventType;
1484 }
1485
1486 /**
1487 Get question id info from the input opcode header.
1488
1489 @param OpCode The input opcode header pointer.
1490
1491 @retval The question id for this opcode.
1492
1493 **/
1494 EFI_QUESTION_ID
1495 GetQuestionIdInfo (
1496 IN EFI_IFR_OP_HEADER *OpCode
1497 )
1498 {
1499 EFI_IFR_QUESTION_HEADER *QuestionHeader;
1500
1501 if (OpCode->Length < sizeof (EFI_IFR_OP_HEADER) + sizeof (EFI_IFR_QUESTION_HEADER)) {
1502 return 0;
1503 }
1504
1505 QuestionHeader = (EFI_IFR_QUESTION_HEADER *)((UINT8 *) OpCode + sizeof(EFI_IFR_OP_HEADER));
1506
1507 return QuestionHeader->QuestionId;
1508 }
1509
1510
1511 /**
1512 Find the top of screen menu base on the current menu.
1513
1514 @param CurPos Current input menu.
1515 @param Rows Totol screen rows.
1516 @param SkipValue SkipValue for this new form.
1517
1518 @retval TopOfScreen Top of screen menu for the new form.
1519
1520 **/
1521 LIST_ENTRY *
1522 FindTopOfScreenMenu (
1523 IN LIST_ENTRY *CurPos,
1524 IN UINTN Rows,
1525 OUT UINTN *SkipValue
1526 )
1527 {
1528 LIST_ENTRY *Link;
1529 LIST_ENTRY *TopOfScreen;
1530 UI_MENU_OPTION *PreviousMenuOption;
1531
1532 Link = CurPos;
1533 PreviousMenuOption = NULL;
1534
1535 while (Link->BackLink != &gMenuOption) {
1536 Link = Link->BackLink;
1537 PreviousMenuOption = MENU_OPTION_FROM_LINK (Link);
1538 if (PreviousMenuOption->Row == 0) {
1539 UpdateOptionSkipLines (PreviousMenuOption);
1540 }
1541 if (Rows <= PreviousMenuOption->Skip) {
1542 break;
1543 }
1544 Rows = Rows - PreviousMenuOption->Skip;
1545 }
1546
1547 if (Link->BackLink == &gMenuOption) {
1548 TopOfScreen = gMenuOption.ForwardLink;
1549 if (PreviousMenuOption != NULL && Rows < PreviousMenuOption->Skip) {
1550 *SkipValue = PreviousMenuOption->Skip - Rows;
1551 } else {
1552 *SkipValue = 0;
1553 }
1554 } else {
1555 TopOfScreen = Link;
1556 *SkipValue = PreviousMenuOption->Skip - Rows;
1557 }
1558
1559 return TopOfScreen;
1560 }
1561
1562 /**
1563 Get the index info for this opcode.
1564
1565 @param OpCode The input opcode for the statement.
1566
1567 @retval The index of this statement.
1568
1569 **/
1570 UINTN
1571 GetIndexInfoForOpcode (
1572 IN EFI_IFR_OP_HEADER *OpCode
1573 )
1574 {
1575 LIST_ENTRY *NewPos;
1576 UI_MENU_OPTION *MenuOption;
1577 UINTN Index;
1578
1579 NewPos = gMenuOption.ForwardLink;
1580 Index = 0;
1581
1582 for (NewPos = gMenuOption.ForwardLink; NewPos != &gMenuOption; NewPos = NewPos->ForwardLink){
1583 MenuOption = MENU_OPTION_FROM_LINK (NewPos);
1584
1585 if (CompareMem (MenuOption->ThisTag->OpCode, OpCode, OpCode->Length) == 0) {
1586 if (MenuOption->ThisTag->OpCode == OpCode) {
1587 return Index;
1588 }
1589
1590 Index ++;
1591 }
1592 }
1593
1594 return Index;
1595 }
1596
1597 /**
1598 Is this the saved highlight statement.
1599
1600 @param HighLightedStatement The input highlight statement.
1601
1602 @retval TRUE This is the highlight statement.
1603 @retval FALSE This is not the highlight statement.
1604
1605 **/
1606 BOOLEAN
1607 IsSavedHighlightStatement (
1608 IN FORM_DISPLAY_ENGINE_STATEMENT *HighLightedStatement
1609 )
1610 {
1611 if ((gFormData->HiiHandle == gHighligthMenuInfo.HiiHandle) &&
1612 (gFormData->FormId == gHighligthMenuInfo.FormId)) {
1613 if (gHighligthMenuInfo.HLTQuestionId != 0) {
1614 return (BOOLEAN) (gHighligthMenuInfo.HLTQuestionId == GetQuestionIdInfo (HighLightedStatement->OpCode));
1615 } else {
1616 if (CompareMem (gHighligthMenuInfo.HLTOpCode, HighLightedStatement->OpCode, gHighligthMenuInfo.HLTOpCode->Length) == 0) {
1617 if (gHighligthMenuInfo.HLTIndex == 0 || gHighligthMenuInfo.HLTIndex == GetIndexInfoForOpcode(HighLightedStatement->OpCode)) {
1618 return TRUE;
1619 } else {
1620 return FALSE;
1621 }
1622 }
1623 }
1624 }
1625
1626 return FALSE;
1627 }
1628
1629 /**
1630 Is this the highlight menu.
1631
1632 @param MenuOption The input Menu option.
1633
1634 @retval TRUE This is the highlight menu option.
1635 @retval FALSE This is not the highlight menu option.
1636
1637 **/
1638 BOOLEAN
1639 IsHighLightMenuOption (
1640 IN UI_MENU_OPTION *MenuOption
1641 )
1642 {
1643 if (gHighligthMenuInfo.HLTQuestionId != 0) {
1644 if (GetQuestionIdInfo(MenuOption->ThisTag->OpCode) == gHighligthMenuInfo.HLTQuestionId) {
1645 return (BOOLEAN) (MenuOption->Sequence == gHighligthMenuInfo.HLTSequence);
1646 }
1647 } else {
1648 if(CompareMem (gHighligthMenuInfo.HLTOpCode, MenuOption->ThisTag->OpCode, gHighligthMenuInfo.HLTOpCode->Length) == 0) {
1649 if (gHighligthMenuInfo.HLTIndex == 0 || gHighligthMenuInfo.HLTIndex == GetIndexInfoForOpcode(MenuOption->ThisTag->OpCode)) {
1650 return (BOOLEAN) (MenuOption->Sequence == gHighligthMenuInfo.HLTSequence);
1651 } else {
1652 return FALSE;
1653 }
1654 }
1655 }
1656
1657 return FALSE;
1658 }
1659
1660 /**
1661 Find the highlight menu.
1662
1663 If the input is NULL, base on the record highlight info in
1664 gHighligthMenuInfo to find the last highlight menu.
1665
1666 @param HighLightedStatement The input highlight statement.
1667
1668 @retval The highlight menu index.
1669
1670 **/
1671 LIST_ENTRY *
1672 FindHighLightMenuOption (
1673 IN FORM_DISPLAY_ENGINE_STATEMENT *HighLightedStatement
1674 )
1675 {
1676 LIST_ENTRY *NewPos;
1677 UI_MENU_OPTION *MenuOption;
1678
1679 NewPos = gMenuOption.ForwardLink;
1680 MenuOption = MENU_OPTION_FROM_LINK (NewPos);
1681
1682 if (HighLightedStatement != NULL) {
1683 while (MenuOption->ThisTag != HighLightedStatement) {
1684 NewPos = NewPos->ForwardLink;
1685 if (NewPos == &gMenuOption) {
1686 //
1687 // Not Found it, break
1688 //
1689 break;
1690 }
1691 MenuOption = MENU_OPTION_FROM_LINK (NewPos);
1692 }
1693
1694 //
1695 // Must find the highlight statement.
1696 //
1697 ASSERT (NewPos != &gMenuOption);
1698
1699 } else {
1700 while (!IsHighLightMenuOption (MenuOption)) {
1701 NewPos = NewPos->ForwardLink;
1702 if (NewPos == &gMenuOption) {
1703 //
1704 // Not Found it, break
1705 //
1706 break;
1707 }
1708 MenuOption = MENU_OPTION_FROM_LINK (NewPos);
1709 }
1710
1711 //
1712 // Highlight statement has disappear (suppressed/disableed)
1713 //
1714 if (NewPos == &gMenuOption) {
1715 NewPos = NULL;
1716 }
1717 }
1718
1719 return NewPos;
1720 }
1721
1722 /**
1723 Is this the Top of screen menu.
1724
1725 @param MenuOption The input Menu option.
1726
1727 @retval TRUE This is the Top of screen menu option.
1728 @retval FALSE This is not the Top of screen menu option.
1729
1730 **/
1731 BOOLEAN
1732 IsTopOfScreeMenuOption (
1733 IN UI_MENU_OPTION *MenuOption
1734 )
1735 {
1736 if (gHighligthMenuInfo.TOSQuestionId != 0) {
1737 return (BOOLEAN) (GetQuestionIdInfo(MenuOption->ThisTag->OpCode) == gHighligthMenuInfo.TOSQuestionId);
1738 }
1739
1740 if(CompareMem (gHighligthMenuInfo.TOSOpCode, MenuOption->ThisTag->OpCode, gHighligthMenuInfo.TOSOpCode->Length) == 0) {
1741 if (gHighligthMenuInfo.TOSIndex == 0 || gHighligthMenuInfo.TOSIndex == GetIndexInfoForOpcode(MenuOption->ThisTag->OpCode)) {
1742 return TRUE;
1743 } else {
1744 return FALSE;
1745 }
1746 }
1747
1748 return FALSE;
1749 }
1750
1751 /**
1752 Calculate the distance between two menus and include the skip value of StartMenu.
1753
1754 @param StartMenu The link_entry pointer to start menu.
1755 @param EndMenu The link_entry pointer to end menu.
1756
1757 **/
1758 UINTN
1759 GetDistanceBetweenMenus(
1760 IN LIST_ENTRY *StartMenu,
1761 IN LIST_ENTRY *EndMenu
1762 )
1763 {
1764 LIST_ENTRY *Link;
1765 UI_MENU_OPTION *MenuOption;
1766 UINTN Distance;
1767
1768 Distance = 0;
1769
1770 Link = StartMenu;
1771 while (Link != EndMenu) {
1772 MenuOption = MENU_OPTION_FROM_LINK (Link);
1773 if (MenuOption->Row == 0) {
1774 UpdateOptionSkipLines (MenuOption);
1775 }
1776 Distance += MenuOption->Skip;
1777 Link = Link->BackLink;
1778 }
1779 return Distance;
1780 }
1781
1782 /**
1783 Find the top of screen menu base on the previous record menu info.
1784
1785 @param HighLightMenu The link_entry pointer to highlight menu.
1786
1787 @retval Return the the link_entry pointer top of screen menu.
1788
1789 **/
1790 LIST_ENTRY *
1791 FindTopOfScreenMenuOption (
1792 IN LIST_ENTRY *HighLightMenu
1793 )
1794 {
1795 LIST_ENTRY *NewPos;
1796 UI_MENU_OPTION *MenuOption;
1797 UINTN TopRow;
1798 UINTN BottomRow;
1799
1800 TopRow = gStatementDimensions.TopRow + SCROLL_ARROW_HEIGHT;
1801 BottomRow = gStatementDimensions.BottomRow - SCROLL_ARROW_HEIGHT;
1802
1803 NewPos = gMenuOption.ForwardLink;
1804 MenuOption = MENU_OPTION_FROM_LINK (NewPos);
1805
1806 while (!IsTopOfScreeMenuOption(MenuOption)) {
1807 NewPos = NewPos->ForwardLink;
1808 if (NewPos == &gMenuOption) {
1809 //
1810 // Not Found it, break
1811 //
1812 break;
1813 }
1814 MenuOption = MENU_OPTION_FROM_LINK (NewPos);
1815 }
1816
1817 //
1818 // Last time top of screen menu has disappeared.
1819 //
1820 if (NewPos == &gMenuOption) {
1821 return NULL;
1822 }
1823 //
1824 // Check whether highlight menu and top of screen menu can be shown within one page,
1825 // if can't, return NULL to re-calcaulate the top of scrren menu. Because some new menus
1826 // may be dynamically inserted between highlightmenu and previous top of screen menu,
1827 // So previous record top of screen menu is not appropriate for current display.
1828 //
1829 if (GetDistanceBetweenMenus (HighLightMenu, NewPos) + 1 > BottomRow - TopRow) {
1830 return NULL;
1831 }
1832
1833 return NewPos;
1834 }
1835
1836 /**
1837 Find the first menu which will be show at the top.
1838
1839 @param FormData The data info for this form.
1840 @param TopOfScreen The link_entry pointer to top menu.
1841 @param HighlightMenu The menu which will be highlight.
1842 @param SkipValue The skip value for the top menu.
1843
1844 **/
1845 VOID
1846 FindTopMenu (
1847 IN FORM_DISPLAY_ENGINE_FORM *FormData,
1848 OUT LIST_ENTRY **TopOfScreen,
1849 OUT LIST_ENTRY **HighlightMenu,
1850 OUT UINTN *SkipValue
1851 )
1852 {
1853 UINTN TopRow;
1854 UINTN BottomRow;
1855 UI_MENU_OPTION *MenuOption;
1856 UINTN TmpValue;
1857
1858 TopRow = gStatementDimensions.TopRow + SCROLL_ARROW_HEIGHT;
1859 BottomRow = gStatementDimensions.BottomRow - SCROLL_ARROW_HEIGHT;
1860 //
1861 // When option mismatch happens,there exist two cases,one is reenter the form, just like the if case below,
1862 // and the other is exit current form and enter last form, it can be covered by the else case.
1863 //
1864 if (gMisMatch && gFormData->HiiHandle == gHighligthMenuInfo.HiiHandle && gFormData->FormId == gHighligthMenuInfo.FormId) {
1865 //
1866 // Reenter caused by option mismatch or auto exit caused by refresh form(refresh interval/guid),
1867 // base on the record highlight info to find the highlight menu.
1868 //
1869
1870 *HighlightMenu = FindHighLightMenuOption(NULL);
1871 if (*HighlightMenu != NULL) {
1872 //
1873 // Update skip info for this highlight menu.
1874 //
1875 MenuOption = MENU_OPTION_FROM_LINK (*HighlightMenu);
1876 UpdateOptionSkipLines (MenuOption);
1877
1878 //
1879 // Found the last time highlight menu.
1880 //
1881 *TopOfScreen = FindTopOfScreenMenuOption(*HighlightMenu);
1882 if (*TopOfScreen != NULL) {
1883 //
1884 // Found the last time selectable top of screen menu.
1885 //
1886 AdjustDateAndTimePosition(TRUE, TopOfScreen);
1887 MenuOption = MENU_OPTION_FROM_LINK (*TopOfScreen);
1888 UpdateOptionSkipLines (MenuOption);
1889
1890 *SkipValue = gHighligthMenuInfo.SkipValue;
1891 } else {
1892 //
1893 // Not found last time top of screen menu, so base on current highlight menu
1894 // to find the new top of screen menu.
1895 // Make the current highlight menu at the bottom of the form to calculate the
1896 // top of screen menu.
1897 //
1898 if (MenuOption->Skip >= BottomRow - TopRow) {
1899 *TopOfScreen = *HighlightMenu;
1900 TmpValue = 0;
1901 } else {
1902 *TopOfScreen = FindTopOfScreenMenu(*HighlightMenu, BottomRow - TopRow - MenuOption->Skip, &TmpValue);
1903 }
1904
1905 *SkipValue = TmpValue;
1906 }
1907 } else {
1908 //
1909 // Last time highlight menu has disappear, find the first highlightable menu as the default one.
1910 //
1911 *HighlightMenu = gMenuOption.ForwardLink;
1912 if (!IsListEmpty (&gMenuOption)) {
1913 MoveToNextStatement (FALSE, HighlightMenu, BottomRow - TopRow, TRUE);
1914 }
1915 *TopOfScreen = gMenuOption.ForwardLink;
1916 *SkipValue = 0;
1917 }
1918
1919 } else if (FormData->HighLightedStatement != NULL) {
1920 if (IsSavedHighlightStatement (FormData->HighLightedStatement)) {
1921 //
1922 // Input highlight menu is same as last time highlight menu.
1923 // Base on last time highlight menu to set the top of screen menu and highlight menu.
1924 //
1925 *HighlightMenu = FindHighLightMenuOption(NULL);
1926 ASSERT (*HighlightMenu != NULL);
1927
1928 //
1929 // Update skip info for this highlight menu.
1930 //
1931 MenuOption = MENU_OPTION_FROM_LINK (*HighlightMenu);
1932 UpdateOptionSkipLines (MenuOption);
1933
1934 *TopOfScreen = FindTopOfScreenMenuOption(*HighlightMenu);
1935 if (*TopOfScreen == NULL) {
1936 //
1937 // Not found last time top of screen menu, so base on current highlight menu
1938 // to find the new top of screen menu.
1939 // Make the current highlight menu at the bottom of the form to calculate the
1940 // top of screen menu.
1941 //
1942 if (MenuOption->Skip >= BottomRow - TopRow) {
1943 *TopOfScreen = *HighlightMenu;
1944 TmpValue = 0;
1945 } else {
1946 *TopOfScreen = FindTopOfScreenMenu(*HighlightMenu, BottomRow - TopRow - MenuOption->Skip, &TmpValue);
1947 }
1948
1949 *SkipValue = TmpValue;
1950 } else {
1951 AdjustDateAndTimePosition(TRUE, TopOfScreen);
1952 MenuOption = MENU_OPTION_FROM_LINK (*TopOfScreen);
1953 UpdateOptionSkipLines (MenuOption);
1954
1955 *SkipValue = gHighligthMenuInfo.SkipValue;
1956 }
1957 AdjustDateAndTimePosition(TRUE, TopOfScreen);
1958 } else {
1959 //
1960 // Input highlight menu is not save as last time highlight menu.
1961 //
1962 *HighlightMenu = FindHighLightMenuOption(FormData->HighLightedStatement);
1963 MenuOption = MENU_OPTION_FROM_LINK (*HighlightMenu);
1964 UpdateOptionSkipLines (MenuOption);
1965
1966 //
1967 // Make the current highlight menu at the bottom of the form to calculate the
1968 // top of screen menu.
1969 //
1970 if (MenuOption->Skip >= BottomRow - TopRow) {
1971 *TopOfScreen = *HighlightMenu;
1972 TmpValue = 0;
1973 } else {
1974 *TopOfScreen = FindTopOfScreenMenu(*HighlightMenu, BottomRow - TopRow - MenuOption->Skip, &TmpValue);
1975 }
1976
1977 *SkipValue = TmpValue;
1978 }
1979 AdjustDateAndTimePosition(TRUE, TopOfScreen);
1980 } else {
1981 //
1982 // If not has input highlight statement, just return the first one in this form.
1983 //
1984 *TopOfScreen = gMenuOption.ForwardLink;
1985 *HighlightMenu = gMenuOption.ForwardLink;
1986 if (!IsListEmpty (&gMenuOption)) {
1987 MoveToNextStatement (FALSE, HighlightMenu, BottomRow - TopRow, TRUE);
1988 }
1989 *SkipValue = 0;
1990 }
1991
1992 gMisMatch = FALSE;
1993
1994 //
1995 // First enter to show the menu, update highlight info.
1996 //
1997 UpdateHighlightMenuInfo (*HighlightMenu, *TopOfScreen, *SkipValue);
1998 }
1999
2000 /**
2001 Record the highlight menu and top of screen menu info.
2002
2003 @param Highlight The menu opton which is highlight.
2004 @param TopOfScreen The menu opton which is at the top of the form.
2005 @param SkipValue The skip line info for the top of screen menu.
2006
2007 **/
2008 VOID
2009 UpdateHighlightMenuInfo (
2010 IN LIST_ENTRY *Highlight,
2011 IN LIST_ENTRY *TopOfScreen,
2012 IN UINTN SkipValue
2013 )
2014 {
2015 UI_MENU_OPTION *MenuOption;
2016 FORM_DISPLAY_ENGINE_STATEMENT *Statement;
2017
2018 gHighligthMenuInfo.HiiHandle = gFormData->HiiHandle;
2019 gHighligthMenuInfo.FormId = gFormData->FormId;
2020 gHighligthMenuInfo.SkipValue = (UINT16)SkipValue;
2021
2022 if (!IsListEmpty (&gMenuOption)) {
2023 MenuOption = MENU_OPTION_FROM_LINK (Highlight);
2024 Statement = MenuOption->ThisTag;
2025
2026 gUserInput->SelectedStatement = Statement;
2027
2028 gHighligthMenuInfo.HLTSequence = MenuOption->Sequence;
2029 gHighligthMenuInfo.HLTQuestionId = GetQuestionIdInfo(Statement->OpCode);
2030 if (gHighligthMenuInfo.HLTQuestionId == 0) {
2031 //
2032 // if question id == 0, save the opcode buffer..
2033 //
2034 if (gHighligthMenuInfo.HLTOpCode != NULL) {
2035 FreePool (gHighligthMenuInfo.HLTOpCode);
2036 }
2037 gHighligthMenuInfo.HLTOpCode = AllocateCopyPool (Statement->OpCode->Length, Statement->OpCode);
2038 ASSERT (gHighligthMenuInfo.HLTOpCode != NULL);
2039
2040 gHighligthMenuInfo.HLTIndex = GetIndexInfoForOpcode(Statement->OpCode);
2041 }
2042
2043 MenuOption = MENU_OPTION_FROM_LINK (TopOfScreen);
2044 Statement = MenuOption->ThisTag;
2045
2046 gHighligthMenuInfo.TOSQuestionId = GetQuestionIdInfo(Statement->OpCode);
2047 if (gHighligthMenuInfo.TOSQuestionId == 0) {
2048 //
2049 // if question id == 0, save the opcode buffer..
2050 //
2051 if (gHighligthMenuInfo.TOSOpCode != NULL) {
2052 FreePool (gHighligthMenuInfo.TOSOpCode);
2053 }
2054 gHighligthMenuInfo.TOSOpCode = AllocateCopyPool (Statement->OpCode->Length, Statement->OpCode);
2055 ASSERT (gHighligthMenuInfo.TOSOpCode != NULL);
2056
2057 gHighligthMenuInfo.TOSIndex = GetIndexInfoForOpcode(Statement->OpCode);
2058 }
2059 } else {
2060 gUserInput->SelectedStatement = NULL;
2061
2062 gHighligthMenuInfo.HLTSequence = 0;
2063 gHighligthMenuInfo.HLTQuestionId = 0;
2064 if (gHighligthMenuInfo.HLTOpCode != NULL) {
2065 FreePool (gHighligthMenuInfo.HLTOpCode);
2066 }
2067 gHighligthMenuInfo.HLTOpCode = NULL;
2068 gHighligthMenuInfo.HLTIndex = 0;
2069
2070 gHighligthMenuInfo.TOSQuestionId = 0;
2071 if (gHighligthMenuInfo.TOSOpCode != NULL) {
2072 FreePool (gHighligthMenuInfo.TOSOpCode);
2073 }
2074 gHighligthMenuInfo.TOSOpCode = NULL;
2075 gHighligthMenuInfo.TOSIndex = 0;
2076 }
2077 }
2078
2079 /**
2080 Update attribut for this menu.
2081
2082 @param MenuOption The menu opton which this attribut used to.
2083 @param Highlight Whether this menu will be highlight.
2084
2085 **/
2086 VOID
2087 SetDisplayAttribute (
2088 IN UI_MENU_OPTION *MenuOption,
2089 IN BOOLEAN Highlight
2090 )
2091 {
2092 FORM_DISPLAY_ENGINE_STATEMENT *Statement;
2093
2094 Statement = MenuOption->ThisTag;
2095
2096 if (Highlight) {
2097 gST->ConOut->SetAttribute (gST->ConOut, GetHighlightTextColor ());
2098 return;
2099 }
2100
2101 if (MenuOption->GrayOut) {
2102 gST->ConOut->SetAttribute (gST->ConOut, GetGrayedTextColor ());
2103 } else {
2104 if (Statement->OpCode->OpCode == EFI_IFR_SUBTITLE_OP) {
2105 gST->ConOut->SetAttribute (gST->ConOut, GetSubTitleTextColor ());
2106 } else {
2107 gST->ConOut->SetAttribute (gST->ConOut, GetFieldTextColor ());
2108 }
2109 }
2110 }
2111
2112 /**
2113 Print string for this menu option.
2114
2115 @param MenuOption The menu opton which this attribut used to.
2116 @param Col The column that this string will be print at.
2117 @param Row The row that this string will be print at.
2118 @param String The string which need to print.
2119 @param Width The width need to print, if string is less than the
2120 width, the block space will be used.
2121 @param Highlight Whether this menu will be highlight.
2122
2123 **/
2124 VOID
2125 DisplayMenuString (
2126 IN UI_MENU_OPTION *MenuOption,
2127 IN UINTN Col,
2128 IN UINTN Row,
2129 IN CHAR16 *String,
2130 IN UINTN Width,
2131 IN BOOLEAN Highlight
2132 )
2133 {
2134 UINTN Length;
2135
2136 //
2137 // Print string with normal color.
2138 //
2139 if (!Highlight) {
2140 PrintStringAtWithWidth (Col, Row, String, Width);
2141 return;
2142 }
2143
2144 //
2145 // Print the highlight menu string.
2146 // First print the highlight string.
2147 //
2148 SetDisplayAttribute(MenuOption, TRUE);
2149 Length = PrintStringAt (Col, Row, String);
2150
2151 //
2152 // Second, clean the empty after the string.
2153 //
2154 SetDisplayAttribute(MenuOption, FALSE);
2155 PrintStringAtWithWidth (Col + Length, Row, L"", Width - Length);
2156 }
2157
2158 /**
2159 Check whether this menu can has option string.
2160
2161 @param MenuOption The menu opton which this attribut used to.
2162
2163 @retval TRUE This menu option can have option string.
2164 @retval FALSE This menu option can't have option string.
2165
2166 **/
2167 BOOLEAN
2168 HasOptionString (
2169 IN UI_MENU_OPTION *MenuOption
2170 )
2171 {
2172 FORM_DISPLAY_ENGINE_STATEMENT *Statement;
2173 CHAR16 *String;
2174 UINTN Size;
2175 EFI_IFR_TEXT *TestOp;
2176
2177 Size = 0;
2178 Statement = MenuOption->ThisTag;
2179
2180 //
2181 // See if the second text parameter is really NULL
2182 //
2183 if (Statement->OpCode->OpCode == EFI_IFR_TEXT_OP) {
2184 TestOp = (EFI_IFR_TEXT *) Statement->OpCode;
2185 if (TestOp->TextTwo != 0) {
2186 String = GetToken (TestOp->TextTwo, gFormData->HiiHandle);
2187 Size = StrLen (String);
2188 FreePool (String);
2189 }
2190 }
2191
2192 if ((Statement->OpCode->OpCode == EFI_IFR_SUBTITLE_OP) ||
2193 (Statement->OpCode->OpCode == EFI_IFR_REF_OP) ||
2194 (Statement->OpCode->OpCode == EFI_IFR_PASSWORD_OP) ||
2195 (Statement->OpCode->OpCode == EFI_IFR_ACTION_OP) ||
2196 (Statement->OpCode->OpCode == EFI_IFR_RESET_BUTTON_OP) ||
2197 //
2198 // Allow a wide display if text op-code and no secondary text op-code
2199 //
2200 ((Statement->OpCode->OpCode == EFI_IFR_TEXT_OP) && (Size == 0))
2201 ) {
2202
2203 return FALSE;
2204 }
2205
2206 return TRUE;
2207 }
2208
2209 /**
2210 Double confirm with user about the action.
2211
2212 @param Action The user input action.
2213
2214 @retval TRUE User confirm with the input or not need user confirm.
2215 @retval FALSE User want ignore this input.
2216
2217 **/
2218 BOOLEAN
2219 FxConfirmPopup (
2220 IN UINT32 Action
2221 )
2222 {
2223 EFI_INPUT_KEY Key;
2224 CHAR16 *CfmStr;
2225 UINTN CfmStrLen;
2226 UINT32 CheckFlags;
2227 BOOLEAN RetVal;
2228 UINTN CatLen;
2229 UINTN MaxLen;
2230
2231 CfmStrLen = 0;
2232 CatLen = StrLen (gConfirmMsgConnect);
2233
2234 //
2235 // Below action need extra popup dialog to confirm.
2236 //
2237 CheckFlags = BROWSER_ACTION_DISCARD |
2238 BROWSER_ACTION_DEFAULT |
2239 BROWSER_ACTION_SUBMIT |
2240 BROWSER_ACTION_RESET |
2241 BROWSER_ACTION_EXIT;
2242
2243 //
2244 // Not need to confirm with user, just return TRUE.
2245 //
2246 if ((Action & CheckFlags) == 0) {
2247 return TRUE;
2248 }
2249
2250 if ((Action & BROWSER_ACTION_DISCARD) == BROWSER_ACTION_DISCARD) {
2251 CfmStrLen += StrLen (gConfirmDiscardMsg);
2252 }
2253
2254 if ((Action & BROWSER_ACTION_DEFAULT) == BROWSER_ACTION_DEFAULT) {
2255 if (CfmStrLen != 0) {
2256 CfmStrLen += CatLen;
2257 }
2258
2259 CfmStrLen += StrLen (gConfirmDefaultMsg);
2260 }
2261
2262 if ((Action & BROWSER_ACTION_SUBMIT) == BROWSER_ACTION_SUBMIT) {
2263 if (CfmStrLen != 0) {
2264 CfmStrLen += CatLen;
2265 }
2266
2267 CfmStrLen += StrLen (gConfirmSubmitMsg);
2268 }
2269
2270 if ((Action & BROWSER_ACTION_RESET) == BROWSER_ACTION_RESET) {
2271 if (CfmStrLen != 0) {
2272 CfmStrLen += CatLen;
2273 }
2274
2275 CfmStrLen += StrLen (gConfirmResetMsg);
2276 }
2277
2278 if ((Action & BROWSER_ACTION_EXIT) == BROWSER_ACTION_EXIT) {
2279 if (CfmStrLen != 0) {
2280 CfmStrLen += CatLen;
2281 }
2282
2283 CfmStrLen += StrLen (gConfirmExitMsg);
2284 }
2285
2286 //
2287 // Allocate buffer to save the string.
2288 // String + "?" + "\0"
2289 //
2290 MaxLen = CfmStrLen + 1 + 1;
2291 CfmStr = AllocateZeroPool (MaxLen * sizeof (CHAR16));
2292 ASSERT (CfmStr != NULL);
2293
2294 if ((Action & BROWSER_ACTION_DISCARD) == BROWSER_ACTION_DISCARD) {
2295 StrCpyS (CfmStr, MaxLen, gConfirmDiscardMsg);
2296 }
2297
2298 if ((Action & BROWSER_ACTION_DEFAULT) == BROWSER_ACTION_DEFAULT) {
2299 if (CfmStr[0] != 0) {
2300 StrCatS (CfmStr, MaxLen, gConfirmMsgConnect);
2301 StrCatS (CfmStr, MaxLen, gConfirmDefaultMsg2nd);
2302 } else {
2303 StrCpyS (CfmStr, MaxLen, gConfirmDefaultMsg);
2304 }
2305 }
2306
2307 if ((Action & BROWSER_ACTION_SUBMIT) == BROWSER_ACTION_SUBMIT) {
2308 if (CfmStr[0] != 0) {
2309 StrCatS (CfmStr, MaxLen, gConfirmMsgConnect);
2310 StrCatS (CfmStr, MaxLen, gConfirmSubmitMsg2nd);
2311 } else {
2312 StrCpyS (CfmStr, MaxLen, gConfirmSubmitMsg);
2313 }
2314 }
2315
2316 if ((Action & BROWSER_ACTION_RESET) == BROWSER_ACTION_RESET) {
2317 if (CfmStr[0] != 0) {
2318 StrCatS (CfmStr, MaxLen, gConfirmMsgConnect);
2319 StrCatS (CfmStr, MaxLen, gConfirmResetMsg2nd);
2320 } else {
2321 StrCpyS (CfmStr, MaxLen, gConfirmResetMsg);
2322 }
2323 }
2324
2325 if ((Action & BROWSER_ACTION_EXIT) == BROWSER_ACTION_EXIT) {
2326 if (CfmStr[0] != 0) {
2327 StrCatS (CfmStr, MaxLen, gConfirmMsgConnect);
2328 StrCatS (CfmStr, MaxLen, gConfirmExitMsg2nd);
2329 } else {
2330 StrCpyS (CfmStr, MaxLen, gConfirmExitMsg);
2331 }
2332 }
2333
2334 StrCatS (CfmStr, MaxLen, gConfirmMsgEnd);
2335
2336 do {
2337 CreateDialog (&Key, gEmptyString, CfmStr, gConfirmOpt, gEmptyString, NULL);
2338 } while (((Key.UnicodeChar | UPPER_LOWER_CASE_OFFSET) != (gConfirmOptYes[0] | UPPER_LOWER_CASE_OFFSET)) &&
2339 ((Key.UnicodeChar | UPPER_LOWER_CASE_OFFSET) != (gConfirmOptNo[0] | UPPER_LOWER_CASE_OFFSET)) &&
2340 (Key.ScanCode != SCAN_ESC));
2341
2342 if ((Key.UnicodeChar | UPPER_LOWER_CASE_OFFSET) == (gConfirmOptYes[0] | UPPER_LOWER_CASE_OFFSET)) {
2343 RetVal = TRUE;
2344 } else {
2345 RetVal = FALSE;
2346 }
2347
2348 FreePool (CfmStr);
2349
2350 return RetVal;
2351 }
2352
2353 /**
2354 Print string for this menu option.
2355
2356 @param MenuOption The menu opton which this attribut used to.
2357 @param SkipWidth The skip width between the left to the start of the prompt.
2358 @param BeginCol The begin column for one menu.
2359 @param SkipLine The skip line for this menu.
2360 @param BottomRow The bottom row for this form.
2361 @param Highlight Whether this menu will be highlight.
2362 @param UpdateCol Whether need to update the column info for Date/Time.
2363
2364 @retval EFI_SUCESSS Process the user selection success.
2365
2366 **/
2367 EFI_STATUS
2368 DisplayOneMenu (
2369 IN UI_MENU_OPTION *MenuOption,
2370 IN UINTN SkipWidth,
2371 IN UINTN BeginCol,
2372 IN UINTN SkipLine,
2373 IN UINTN BottomRow,
2374 IN BOOLEAN Highlight,
2375 IN BOOLEAN UpdateCol
2376 )
2377 {
2378 FORM_DISPLAY_ENGINE_STATEMENT *Statement;
2379 UINTN Index;
2380 UINT16 Width;
2381 UINT16 PromptWidth;
2382 CHAR16 *StringPtr;
2383 CHAR16 *OptionString;
2384 CHAR16 *OutputString;
2385 UINT16 GlyphWidth;
2386 UINTN Temp;
2387 UINTN Temp2;
2388 UINTN Temp3;
2389 EFI_STATUS Status;
2390 UINTN Row;
2391 BOOLEAN IsProcessingFirstRow;
2392 UINTN Col;
2393 UINTN PromptLineNum;
2394 UINTN OptionLineNum;
2395 CHAR16 AdjustValue;
2396 UINTN MaxRow;
2397
2398 Statement = MenuOption->ThisTag;
2399 Temp = SkipLine;
2400 Temp2 = SkipLine;
2401 Temp3 = SkipLine;
2402 AdjustValue = 0;
2403 PromptLineNum = 0;
2404 OptionLineNum = 0;
2405 MaxRow = 0;
2406 IsProcessingFirstRow = TRUE;
2407
2408 //
2409 // Set default color.
2410 //
2411 SetDisplayAttribute (MenuOption, FALSE);
2412
2413 //
2414 // 1. Paint the option string.
2415 //
2416 Status = ProcessOptions (MenuOption, FALSE, &OptionString, FALSE);
2417 if (EFI_ERROR (Status)) {
2418 return Status;
2419 }
2420
2421 if (OptionString != NULL) {
2422 if (Statement->OpCode->OpCode == EFI_IFR_DATE_OP || Statement->OpCode->OpCode == EFI_IFR_TIME_OP) {
2423 //
2424 // Adjust option string for date/time opcode.
2425 //
2426 ProcessStringForDateTime(MenuOption, OptionString, UpdateCol);
2427 }
2428
2429 Width = (UINT16) gOptionBlockWidth - 1;
2430 Row = MenuOption->Row;
2431 GlyphWidth = 1;
2432 OptionLineNum = 0;
2433
2434 for (Index = 0; GetLineByWidth (OptionString, Width, &GlyphWidth, &Index, &OutputString) != 0x0000;) {
2435 if (((Temp2 == 0)) && (Row <= BottomRow)) {
2436 if (Statement->OpCode->OpCode == EFI_IFR_DATE_OP || Statement->OpCode->OpCode == EFI_IFR_TIME_OP) {
2437 //
2438 // For date/time question, it has three menu options for this qustion.
2439 // The first/second menu options with the skip value is 0. the last one
2440 // with skip value is 1.
2441 //
2442 if (MenuOption->Skip != 0) {
2443 //
2444 // For date/ time, print the last past (year for date and second for time)
2445 // - 7 means skip [##/##/ for date and [##:##: for time.
2446 //
2447 DisplayMenuString (MenuOption,MenuOption->OptCol, Row, OutputString, Width + 1 - 7, Highlight);
2448 } else {
2449 //
2450 // For date/ time, print the first and second past (year for date and second for time)
2451 // The OutputString has a NARROW_CHAR or WIDE_CHAR at the begin of the string,
2452 // so need to - 1 to remove it, otherwise, it will clean 1 extr char follow it.
2453 DisplayMenuString (MenuOption, MenuOption->OptCol, Row, OutputString, StrLen (OutputString) - 1, Highlight);
2454 }
2455 } else {
2456 DisplayMenuString (MenuOption, MenuOption->OptCol, Row, OutputString, Width + 1, Highlight);
2457 }
2458 OptionLineNum++;
2459 }
2460
2461 //
2462 // If there is more string to process print on the next row and increment the Skip value
2463 //
2464 if (StrLen (&OptionString[Index]) != 0) {
2465 if (Temp2 == 0) {
2466 Row++;
2467 //
2468 // Since the Number of lines for this menu entry may or may not be reflected accurately
2469 // since the prompt might be 1 lines and option might be many, and vice versa, we need to do
2470 // some testing to ensure we are keeping this in-sync.
2471 //
2472 // If the difference in rows is greater than or equal to the skip value, increase the skip value
2473 //
2474 if ((Row - MenuOption->Row) >= MenuOption->Skip) {
2475 MenuOption->Skip++;
2476 }
2477 }
2478 }
2479
2480 FreePool (OutputString);
2481 if (Temp2 != 0) {
2482 Temp2--;
2483 }
2484 }
2485
2486 Highlight = FALSE;
2487
2488 FreePool (OptionString);
2489 }
2490
2491 //
2492 // 2. Paint the description.
2493 //
2494 PromptWidth = GetWidth (MenuOption, &AdjustValue);
2495 Row = MenuOption->Row;
2496 GlyphWidth = 1;
2497 PromptLineNum = 0;
2498
2499 if (MenuOption->Description == NULL || MenuOption->Description[0] == '\0') {
2500 PrintStringAtWithWidth (BeginCol, Row, L"", PromptWidth + AdjustValue + SkipWidth);
2501 PromptLineNum++;
2502 } else {
2503 for (Index = 0; GetLineByWidth (MenuOption->Description, PromptWidth, &GlyphWidth, &Index, &OutputString) != 0x0000;) {
2504 if ((Temp == 0) && (Row <= BottomRow)) {
2505 //
2506 // 1.Clean the start LEFT_SKIPPED_COLUMNS
2507 //
2508 PrintStringAtWithWidth (BeginCol, Row, L"", SkipWidth);
2509
2510 if (Statement->OpCode->OpCode == EFI_IFR_REF_OP && MenuOption->Col >= 2 && IsProcessingFirstRow) {
2511 //
2512 // Print Arrow for Goto button.
2513 //
2514 PrintCharAt (
2515 MenuOption->Col - 2,
2516 Row,
2517 GEOMETRICSHAPE_RIGHT_TRIANGLE
2518 );
2519 IsProcessingFirstRow = FALSE;
2520 }
2521 DisplayMenuString (MenuOption, MenuOption->Col, Row, OutputString, PromptWidth + AdjustValue, Highlight);
2522 PromptLineNum ++;
2523 }
2524 //
2525 // If there is more string to process print on the next row and increment the Skip value
2526 //
2527 if (StrLen (&MenuOption->Description[Index]) != 0) {
2528 if (Temp == 0) {
2529 Row++;
2530 }
2531 }
2532
2533 FreePool (OutputString);
2534 if (Temp != 0) {
2535 Temp--;
2536 }
2537 }
2538
2539 Highlight = FALSE;
2540 }
2541
2542
2543 //
2544 // 3. If this is a text op with secondary text information
2545 //
2546 if ((Statement->OpCode->OpCode == EFI_IFR_TEXT_OP) && (((EFI_IFR_TEXT*)Statement->OpCode)->TextTwo != 0)) {
2547 StringPtr = GetToken (((EFI_IFR_TEXT*)Statement->OpCode)->TextTwo, gFormData->HiiHandle);
2548
2549 Width = (UINT16) gOptionBlockWidth - 1;
2550 Row = MenuOption->Row;
2551 GlyphWidth = 1;
2552 OptionLineNum = 0;
2553
2554 for (Index = 0; GetLineByWidth (StringPtr, Width, &GlyphWidth, &Index, &OutputString) != 0x0000;) {
2555 if ((Temp3 == 0) && (Row <= BottomRow)) {
2556 DisplayMenuString (MenuOption, MenuOption->OptCol, Row, OutputString, Width + 1, Highlight);
2557 OptionLineNum++;
2558 }
2559 //
2560 // If there is more string to process print on the next row and increment the Skip value
2561 //
2562 if (StrLen (&StringPtr[Index]) != 0) {
2563 if (Temp3 == 0) {
2564 Row++;
2565 //
2566 // If the rows for text two is greater than or equal to the skip value, increase the skip value
2567 //
2568 if ((Row - MenuOption->Row) >= MenuOption->Skip) {
2569 MenuOption->Skip++;
2570 }
2571 }
2572 }
2573
2574 FreePool (OutputString);
2575 if (Temp3 != 0) {
2576 Temp3--;
2577 }
2578 }
2579
2580 FreePool (StringPtr);
2581 }
2582
2583 //
2584 // 4.Line number for Option string and prompt string are not equal.
2585 // Clean the column whose line number is less.
2586 //
2587 if (HasOptionString(MenuOption) && (OptionLineNum != PromptLineNum)) {
2588 Col = OptionLineNum < PromptLineNum ? MenuOption->OptCol : BeginCol;
2589 Row = (OptionLineNum < PromptLineNum ? OptionLineNum : PromptLineNum) + MenuOption->Row;
2590 Width = (UINT16) (OptionLineNum < PromptLineNum ? gOptionBlockWidth : PromptWidth + AdjustValue + SkipWidth);
2591 MaxRow = (OptionLineNum < PromptLineNum ? PromptLineNum : OptionLineNum) + MenuOption->Row - 1;
2592
2593 while (Row <= MaxRow) {
2594 DisplayMenuString (MenuOption, Col, Row++, L"", Width, FALSE);
2595 }
2596 }
2597
2598 return EFI_SUCCESS;
2599 }
2600
2601 /**
2602 Display menu and wait for user to select one menu option, then return it.
2603 If AutoBoot is enabled, then if user doesn't select any option,
2604 after period of time, it will automatically return the first menu option.
2605
2606 @param FormData The current form data info.
2607
2608 @retval EFI_SUCESSS Process the user selection success.
2609 @retval EFI_NOT_FOUND Process option string for orderedlist/Oneof fail.
2610
2611 **/
2612 EFI_STATUS
2613 UiDisplayMenu (
2614 IN FORM_DISPLAY_ENGINE_FORM *FormData
2615 )
2616 {
2617 UINTN SkipValue;
2618 INTN Difference;
2619 UINTN DistanceValue;
2620 UINTN Row;
2621 UINTN Col;
2622 UINTN Temp;
2623 UINTN Temp2;
2624 UINTN TopRow;
2625 UINTN BottomRow;
2626 UINTN Index;
2627 CHAR16 *StringPtr;
2628 CHAR16 *StringRightPtr;
2629 CHAR16 *StringErrorPtr;
2630 CHAR16 *OptionString;
2631 CHAR16 *HelpString;
2632 CHAR16 *HelpHeaderString;
2633 CHAR16 *HelpBottomString;
2634 BOOLEAN NewLine;
2635 BOOLEAN Repaint;
2636 BOOLEAN UpArrow;
2637 BOOLEAN DownArrow;
2638 EFI_STATUS Status;
2639 EFI_INPUT_KEY Key;
2640 LIST_ENTRY *Link;
2641 LIST_ENTRY *NewPos;
2642 LIST_ENTRY *TopOfScreen;
2643 LIST_ENTRY *SavedListEntry;
2644 UI_MENU_OPTION *MenuOption;
2645 UI_MENU_OPTION *NextMenuOption;
2646 UI_MENU_OPTION *SavedMenuOption;
2647 UI_CONTROL_FLAG ControlFlag;
2648 UI_SCREEN_OPERATION ScreenOperation;
2649 FORM_DISPLAY_ENGINE_STATEMENT *Statement;
2650 BROWSER_HOT_KEY *HotKey;
2651 UINTN HelpPageIndex;
2652 UINTN HelpPageCount;
2653 UINTN RowCount;
2654 UINTN HelpLine;
2655 UINTN HelpHeaderLine;
2656 UINTN HelpBottomLine;
2657 BOOLEAN MultiHelpPage;
2658 UINT16 EachLineWidth;
2659 UINT16 HeaderLineWidth;
2660 UINT16 BottomLineWidth;
2661 EFI_STRING_ID HelpInfo;
2662 UI_EVENT_TYPE EventType;
2663 BOOLEAN SkipHighLight;
2664 EFI_HII_VALUE *StatementValue;
2665
2666 EventType = UIEventNone;
2667 Status = EFI_SUCCESS;
2668 HelpString = NULL;
2669 HelpHeaderString = NULL;
2670 HelpBottomString = NULL;
2671 OptionString = NULL;
2672 ScreenOperation = UiNoOperation;
2673 NewLine = TRUE;
2674 HelpPageCount = 0;
2675 HelpLine = 0;
2676 RowCount = 0;
2677 HelpBottomLine = 0;
2678 HelpHeaderLine = 0;
2679 HelpPageIndex = 0;
2680 MultiHelpPage = FALSE;
2681 EachLineWidth = 0;
2682 HeaderLineWidth = 0;
2683 BottomLineWidth = 0;
2684 UpArrow = FALSE;
2685 DownArrow = FALSE;
2686 SkipValue = 0;
2687 SkipHighLight = FALSE;
2688
2689 NextMenuOption = NULL;
2690 SavedMenuOption = NULL;
2691 HotKey = NULL;
2692 Repaint = TRUE;
2693 MenuOption = NULL;
2694 gModalSkipColumn = (CHAR16) (gStatementDimensions.RightColumn - gStatementDimensions.LeftColumn) / 6;
2695
2696 ZeroMem (&Key, sizeof (EFI_INPUT_KEY));
2697
2698 TopRow = gStatementDimensions.TopRow + SCROLL_ARROW_HEIGHT;
2699 BottomRow = gStatementDimensions.BottomRow - SCROLL_ARROW_HEIGHT - 1;
2700
2701 Row = TopRow;
2702 if ((FormData->Attribute & HII_DISPLAY_MODAL) != 0) {
2703 Col = gStatementDimensions.LeftColumn + LEFT_SKIPPED_COLUMNS + gModalSkipColumn;
2704 } else {
2705 Col = gStatementDimensions.LeftColumn + LEFT_SKIPPED_COLUMNS;
2706 }
2707
2708 FindTopMenu(FormData, &TopOfScreen, &NewPos, &SkipValue);
2709 if (!IsListEmpty (&gMenuOption)) {
2710 NextMenuOption = MENU_OPTION_FROM_LINK (NewPos);
2711 gUserInput->SelectedStatement = NextMenuOption->ThisTag;
2712 }
2713
2714 gST->ConOut->EnableCursor (gST->ConOut, FALSE);
2715
2716 ControlFlag = CfInitialization;
2717 while (TRUE) {
2718 switch (ControlFlag) {
2719 case CfInitialization:
2720 if ((gOldFormEntry.HiiHandle != FormData->HiiHandle) ||
2721 (!CompareGuid (&gOldFormEntry.FormSetGuid, &FormData->FormSetGuid))) {
2722 //
2723 // Clear Statement range if different formset is painted.
2724 //
2725 ClearLines (
2726 gStatementDimensions.LeftColumn,
2727 gStatementDimensions.RightColumn,
2728 TopRow - SCROLL_ARROW_HEIGHT,
2729 BottomRow + SCROLL_ARROW_HEIGHT,
2730 GetFieldTextColor ()
2731 );
2732
2733 }
2734 ControlFlag = CfRepaint;
2735 break;
2736
2737 case CfRepaint:
2738 ControlFlag = CfRefreshHighLight;
2739
2740 if (Repaint) {
2741 //
2742 // Display menu
2743 //
2744 DownArrow = FALSE;
2745 UpArrow = FALSE;
2746 Row = TopRow;
2747
2748 gST->ConOut->SetAttribute (gST->ConOut, GetFieldTextColor ());
2749
2750 //
2751 // 1. Check whether need to print the arrow up.
2752 //
2753 if (!ValueIsScroll (TRUE, TopOfScreen)) {
2754 UpArrow = TRUE;
2755 }
2756
2757 if ((FormData->Attribute & HII_DISPLAY_MODAL) != 0) {
2758 PrintStringAtWithWidth(gStatementDimensions.LeftColumn + gModalSkipColumn, TopRow - 1, L"", gStatementDimensions.RightColumn - gStatementDimensions.LeftColumn - 2 * gModalSkipColumn);
2759 } else {
2760 PrintStringAtWithWidth(gStatementDimensions.LeftColumn, TopRow - 1, L"", gStatementDimensions.RightColumn - gStatementDimensions.LeftColumn);
2761 }
2762 if (UpArrow) {
2763 gST->ConOut->SetAttribute (gST->ConOut, GetArrowColor ());
2764 PrintCharAt (
2765 gStatementDimensions.LeftColumn + gPromptBlockWidth + gOptionBlockWidth + 1,
2766 TopRow - SCROLL_ARROW_HEIGHT,
2767 ARROW_UP
2768 );
2769 gST->ConOut->SetAttribute (gST->ConOut, GetFieldTextColor ());
2770 }
2771
2772 //
2773 // 2.Paint the menu.
2774 //
2775 for (Link = TopOfScreen; Link != &gMenuOption; Link = Link->ForwardLink) {
2776 MenuOption = MENU_OPTION_FROM_LINK (Link);
2777 MenuOption->Row = Row;
2778 MenuOption->Col = Col;
2779 if ((FormData->Attribute & HII_DISPLAY_MODAL) != 0) {
2780 MenuOption->OptCol = gStatementDimensions.LeftColumn + LEFT_SKIPPED_COLUMNS + gPromptBlockWidth + gModalSkipColumn;
2781 } else {
2782 MenuOption->OptCol = gStatementDimensions.LeftColumn + LEFT_SKIPPED_COLUMNS + gPromptBlockWidth;
2783 }
2784
2785 if (MenuOption->NestInStatement) {
2786 MenuOption->Col += SUBTITLE_INDENT;
2787 }
2788
2789 //
2790 // Save the highlight menu, will be used in CfRefreshHighLight case.
2791 //
2792 if (Link == NewPos) {
2793 SavedMenuOption = MenuOption;
2794 SkipHighLight = TRUE;
2795 }
2796
2797 if ((FormData->Attribute & HII_DISPLAY_MODAL) != 0) {
2798 Status = DisplayOneMenu (MenuOption,
2799 MenuOption->Col - gStatementDimensions.LeftColumn,
2800 gStatementDimensions.LeftColumn + gModalSkipColumn,
2801 Link == TopOfScreen ? SkipValue : 0,
2802 BottomRow,
2803 (BOOLEAN) ((Link == NewPos) && IsSelectable(MenuOption)),
2804 TRUE
2805 );
2806 } else {
2807 Status = DisplayOneMenu (MenuOption,
2808 MenuOption->Col - gStatementDimensions.LeftColumn,
2809 gStatementDimensions.LeftColumn,
2810 Link == TopOfScreen ? SkipValue : 0,
2811 BottomRow,
2812 (BOOLEAN) ((Link == NewPos) && IsSelectable(MenuOption)),
2813 TRUE
2814 );
2815 }
2816
2817 if (EFI_ERROR (Status)) {
2818 if (gMisMatch) {
2819 return EFI_SUCCESS;
2820 } else {
2821 return Status;
2822 }
2823 }
2824 //
2825 // 3. Update the row info which will be used by next menu.
2826 //
2827 if (Link == TopOfScreen) {
2828 Row += MenuOption->Skip - SkipValue;
2829 } else {
2830 Row += MenuOption->Skip;
2831 }
2832
2833 if (Row > BottomRow) {
2834 if (!ValueIsScroll (FALSE, Link)) {
2835 DownArrow = TRUE;
2836 }
2837
2838 Row = BottomRow + 1;
2839 break;
2840 }
2841 }
2842
2843 //
2844 // 3. Menus in this form may not cover all form, clean the remain field.
2845 //
2846 while (Row <= BottomRow) {
2847 if ((FormData->Attribute & HII_DISPLAY_MODAL) != 0) {
2848 PrintStringAtWithWidth(gStatementDimensions.LeftColumn + gModalSkipColumn, Row++, L"", gStatementDimensions.RightColumn - gStatementDimensions.LeftColumn - 2 * gModalSkipColumn);
2849 } else {
2850 PrintStringAtWithWidth(gStatementDimensions.LeftColumn, Row++, L"", gStatementDimensions.RightColumn - gHelpBlockWidth - gStatementDimensions.LeftColumn);
2851 }
2852 }
2853
2854 //
2855 // 4. Print the down arrow row.
2856 //
2857 if ((FormData->Attribute & HII_DISPLAY_MODAL) != 0) {
2858 PrintStringAtWithWidth(gStatementDimensions.LeftColumn + gModalSkipColumn, BottomRow + 1, L"", gStatementDimensions.RightColumn - gStatementDimensions.LeftColumn - 2 * + gModalSkipColumn);
2859 } else {
2860 PrintStringAtWithWidth(gStatementDimensions.LeftColumn, BottomRow + 1, L"", gStatementDimensions.RightColumn - gStatementDimensions.LeftColumn);
2861 }
2862 if (DownArrow) {
2863 gST->ConOut->SetAttribute (gST->ConOut, GetArrowColor ());
2864 PrintCharAt (
2865 gStatementDimensions.LeftColumn + gPromptBlockWidth + gOptionBlockWidth + 1,
2866 BottomRow + SCROLL_ARROW_HEIGHT,
2867 ARROW_DOWN
2868 );
2869 gST->ConOut->SetAttribute (gST->ConOut, GetFieldTextColor ());
2870 }
2871
2872 MenuOption = NULL;
2873 }
2874 break;
2875
2876 case CfRefreshHighLight:
2877
2878 //
2879 // MenuOption: Last menu option that need to remove hilight
2880 // MenuOption is set to NULL in Repaint
2881 // NewPos: Current menu option that need to hilight
2882 //
2883 ControlFlag = CfUpdateHelpString;
2884
2885 UpdateHighlightMenuInfo(NewPos, TopOfScreen, SkipValue);
2886
2887 if (SkipHighLight) {
2888 SkipHighLight = FALSE;
2889 MenuOption = SavedMenuOption;
2890 RefreshKeyHelp(gFormData, SavedMenuOption->ThisTag, FALSE);
2891 break;
2892 }
2893
2894 if (IsListEmpty (&gMenuOption)) {
2895 //
2896 // No menu option, just update the hotkey filed.
2897 //
2898 RefreshKeyHelp(gFormData, NULL, FALSE);
2899 break;
2900 }
2901
2902 if (MenuOption != NULL && TopOfScreen == &MenuOption->Link) {
2903 Temp = SkipValue;
2904 } else {
2905 Temp = 0;
2906 }
2907 if (NewPos == TopOfScreen) {
2908 Temp2 = SkipValue;
2909 } else {
2910 Temp2 = 0;
2911 }
2912
2913 if (NewPos != NULL && (MenuOption == NULL || NewPos != &MenuOption->Link)) {
2914 if (MenuOption != NULL) {
2915 //
2916 // Remove the old highlight menu.
2917 //
2918 Status = DisplayOneMenu (MenuOption,
2919 MenuOption->Col - gStatementDimensions.LeftColumn,
2920 gStatementDimensions.LeftColumn,
2921 Temp,
2922 BottomRow,
2923 FALSE,
2924 FALSE
2925 );
2926 }
2927
2928 //
2929 // This is the current selected statement
2930 //
2931 MenuOption = MENU_OPTION_FROM_LINK (NewPos);
2932 RefreshKeyHelp(gFormData, MenuOption->ThisTag, FALSE);
2933
2934 if (!IsSelectable (MenuOption)) {
2935 break;
2936 }
2937
2938 Status = DisplayOneMenu (MenuOption,
2939 MenuOption->Col - gStatementDimensions.LeftColumn,
2940 gStatementDimensions.LeftColumn,
2941 Temp2,
2942 BottomRow,
2943 TRUE,
2944 FALSE
2945 );
2946 }
2947 break;
2948
2949 case CfUpdateHelpString:
2950 ControlFlag = CfPrepareToReadKey;
2951 if ((FormData->Attribute & HII_DISPLAY_MODAL) != 0) {
2952 break;
2953 }
2954
2955 //
2956 // NewLine means only update highlight menu (remove old highlight and highlith
2957 // the new one), not need to full repain the form.
2958 //
2959 if (Repaint || NewLine) {
2960 if (IsListEmpty (&gMenuOption)) {
2961 //
2962 // Don't print anything if no mwnu option.
2963 //
2964 StringPtr = GetToken (STRING_TOKEN (EMPTY_STRING), gHiiHandle);
2965 } else {
2966 //
2967 // Don't print anything if it is a NULL help token
2968 //
2969 ASSERT(MenuOption != NULL);
2970 HelpInfo = ((EFI_IFR_STATEMENT_HEADER *) ((CHAR8 *)MenuOption->ThisTag->OpCode + sizeof (EFI_IFR_OP_HEADER)))->Help;
2971 Statement = MenuOption->ThisTag;
2972 StatementValue = &Statement->CurrentValue;
2973 if (HelpInfo == 0 || !IsSelectable (MenuOption)) {
2974 if ((Statement->OpCode->OpCode == EFI_IFR_DATE_OP && StatementValue->Value.date.Month== 0xff)||(Statement->OpCode->OpCode == EFI_IFR_TIME_OP && StatementValue->Value.time.Hour == 0xff)){
2975 StringPtr = GetToken (STRING_TOKEN (GET_TIME_FAIL), gHiiHandle);
2976 } else {
2977 StringPtr = GetToken (STRING_TOKEN (EMPTY_STRING), gHiiHandle);
2978 }
2979 } else {
2980 if ((Statement->OpCode->OpCode == EFI_IFR_DATE_OP && StatementValue->Value.date.Month== 0xff)||(Statement->OpCode->OpCode == EFI_IFR_TIME_OP && StatementValue->Value.time.Hour == 0xff)){
2981 StringRightPtr = GetToken (HelpInfo, gFormData->HiiHandle);
2982 StringErrorPtr = GetToken (STRING_TOKEN (GET_TIME_FAIL), gHiiHandle);
2983 StringPtr = AllocateZeroPool ((StrLen (StringRightPtr) + StrLen (StringErrorPtr)+ 1 ) * sizeof (CHAR16));
2984 StrCpyS (StringPtr, StrLen (StringRightPtr) + StrLen (StringErrorPtr) + 1, StringRightPtr);
2985 StrCatS (StringPtr, StrLen (StringRightPtr) + StrLen (StringErrorPtr) + 1, StringErrorPtr);
2986 FreePool (StringRightPtr);
2987 FreePool (StringErrorPtr);
2988 } else {
2989 StringPtr = GetToken (HelpInfo, gFormData->HiiHandle);
2990 }
2991 }
2992 }
2993
2994 RowCount = BottomRow - TopRow + 1;
2995 HelpPageIndex = 0;
2996 //
2997 // 1.Calculate how many line the help string need to print.
2998 //
2999 if (HelpString != NULL) {
3000 FreePool (HelpString);
3001 HelpString = NULL;
3002 }
3003 HelpLine = ProcessHelpString (StringPtr, &HelpString, &EachLineWidth, RowCount);
3004 FreePool (StringPtr);
3005
3006 if (HelpLine > RowCount) {
3007 MultiHelpPage = TRUE;
3008 StringPtr = GetToken (STRING_TOKEN(ADJUST_HELP_PAGE_UP), gHiiHandle);
3009 if (HelpHeaderString != NULL) {
3010 FreePool (HelpHeaderString);
3011 HelpHeaderString = NULL;
3012 }
3013 HelpHeaderLine = ProcessHelpString (StringPtr, &HelpHeaderString, &HeaderLineWidth, 0);
3014 FreePool (StringPtr);
3015 StringPtr = GetToken (STRING_TOKEN(ADJUST_HELP_PAGE_DOWN), gHiiHandle);
3016 if (HelpBottomString != NULL) {
3017 FreePool (HelpBottomString);
3018 HelpBottomString = NULL;
3019 }
3020 HelpBottomLine = ProcessHelpString (StringPtr, &HelpBottomString, &BottomLineWidth, 0);
3021 FreePool (StringPtr);
3022 //
3023 // Calculate the help page count.
3024 //
3025 if (HelpLine > 2 * RowCount - 2) {
3026 HelpPageCount = (HelpLine - RowCount + 1) / (RowCount - 2) + 1;
3027 if ((HelpLine - RowCount + 1) % (RowCount - 2) != 0) {
3028 HelpPageCount += 1;
3029 }
3030 } else {
3031 HelpPageCount = 2;
3032 }
3033 } else {
3034 MultiHelpPage = FALSE;
3035 }
3036 }
3037
3038 //
3039 // Check whether need to show the 'More(U/u)' at the begin.
3040 // Base on current direct info, here shows aligned to the right side of the column.
3041 // If the direction is multi line and aligned to right side may have problem, so
3042 // add ASSERT code here.
3043 //
3044 if (HelpPageIndex > 0) {
3045 gST->ConOut->SetAttribute (gST->ConOut, GetInfoTextColor ());
3046 for (Index = 0; Index < HelpHeaderLine; Index++) {
3047 ASSERT (HelpHeaderLine == 1);
3048 ASSERT (GetStringWidth (HelpHeaderString) / 2 < ((UINT32) gHelpBlockWidth - 1));
3049 PrintStringAtWithWidth (
3050 gStatementDimensions.RightColumn - gHelpBlockWidth,
3051 Index + TopRow,
3052 gEmptyString,
3053 gHelpBlockWidth
3054 );
3055 PrintStringAt (
3056 gStatementDimensions.RightColumn - GetStringWidth (HelpHeaderString) / 2 - 1,
3057 Index + TopRow,
3058 &HelpHeaderString[Index * HeaderLineWidth]
3059 );
3060 }
3061 }
3062
3063 gST->ConOut->SetAttribute (gST->ConOut, GetHelpTextColor ());
3064 //
3065 // Print the help string info.
3066 //
3067 if (!MultiHelpPage) {
3068 for (Index = 0; Index < HelpLine; Index++) {
3069 PrintStringAtWithWidth (
3070 gStatementDimensions.RightColumn - gHelpBlockWidth,
3071 Index + TopRow,
3072 &HelpString[Index * EachLineWidth],
3073 gHelpBlockWidth
3074 );
3075 }
3076 for (; Index < RowCount; Index ++) {
3077 PrintStringAtWithWidth (
3078 gStatementDimensions.RightColumn - gHelpBlockWidth,
3079 Index + TopRow,
3080 gEmptyString,
3081 gHelpBlockWidth
3082 );
3083 }
3084 gST->ConOut->SetCursorPosition(gST->ConOut, gStatementDimensions.RightColumn-1, BottomRow);
3085 } else {
3086 if (HelpPageIndex == 0) {
3087 for (Index = 0; Index < RowCount - HelpBottomLine; Index++) {
3088 PrintStringAtWithWidth (
3089 gStatementDimensions.RightColumn - gHelpBlockWidth,
3090 Index + TopRow,
3091 &HelpString[Index * EachLineWidth],
3092 gHelpBlockWidth
3093 );
3094 }
3095 } else {
3096 for (Index = 0; (Index < RowCount - HelpBottomLine - HelpHeaderLine) &&
3097 (Index + HelpPageIndex * (RowCount - 2) + 1 < HelpLine); Index++) {
3098 PrintStringAtWithWidth (
3099 gStatementDimensions.RightColumn - gHelpBlockWidth,
3100 Index + TopRow + HelpHeaderLine,
3101 &HelpString[(Index + HelpPageIndex * (RowCount - 2) + 1)* EachLineWidth],
3102 gHelpBlockWidth
3103 );
3104 }
3105 if (HelpPageIndex == HelpPageCount - 1) {
3106 for (; Index < RowCount - HelpHeaderLine; Index ++) {
3107 PrintStringAtWithWidth (
3108 gStatementDimensions.RightColumn - gHelpBlockWidth,
3109 Index + TopRow + HelpHeaderLine,
3110 gEmptyString,
3111 gHelpBlockWidth
3112 );
3113 }
3114 gST->ConOut->SetCursorPosition(gST->ConOut, gStatementDimensions.RightColumn-1, BottomRow);
3115 }
3116 }
3117 }
3118
3119 //
3120 // Check whether need to print the 'More(D/d)' at the bottom.
3121 // Base on current direct info, here shows aligned to the right side of the column.
3122 // If the direction is multi line and aligned to right side may have problem, so
3123 // add ASSERT code here.
3124 //
3125 if (HelpPageIndex < HelpPageCount - 1 && MultiHelpPage) {
3126 gST->ConOut->SetAttribute (gST->ConOut, GetInfoTextColor ());
3127 for (Index = 0; Index < HelpBottomLine; Index++) {
3128 ASSERT (HelpBottomLine == 1);
3129 ASSERT (GetStringWidth (HelpBottomString) / 2 < ((UINT32) gHelpBlockWidth - 1));
3130 PrintStringAtWithWidth (
3131 gStatementDimensions.RightColumn - gHelpBlockWidth,
3132 BottomRow + Index - HelpBottomLine + 1,
3133 gEmptyString,
3134 gHelpBlockWidth
3135 );
3136 PrintStringAt (
3137 gStatementDimensions.RightColumn - GetStringWidth (HelpBottomString) / 2 - 1,
3138 BottomRow + Index - HelpBottomLine + 1,
3139 &HelpBottomString[Index * BottomLineWidth]
3140 );
3141 }
3142 }
3143 //
3144 // Reset this flag every time we finish using it.
3145 //
3146 Repaint = FALSE;
3147 NewLine = FALSE;
3148 break;
3149
3150 case CfPrepareToReadKey:
3151 ControlFlag = CfReadKey;
3152 ScreenOperation = UiNoOperation;
3153 break;
3154
3155 case CfReadKey:
3156 ControlFlag = CfScreenOperation;
3157
3158 //
3159 // Wait for user's selection
3160 //
3161 while (TRUE) {
3162 Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
3163 if (!EFI_ERROR (Status)) {
3164 EventType = UIEventKey;
3165 break;
3166 }
3167
3168 //
3169 // If we encounter error, continue to read another key in.
3170 //
3171 if (Status != EFI_NOT_READY) {
3172 continue;
3173 }
3174
3175 EventType = UiWaitForEvent(gST->ConIn->WaitForKey);
3176 if (EventType == UIEventKey) {
3177 gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
3178 }
3179 break;
3180 }
3181
3182 if (EventType == UIEventDriver) {
3183 gMisMatch = TRUE;
3184 gUserInput->Action = BROWSER_ACTION_NONE;
3185 ControlFlag = CfExit;
3186 break;
3187 }
3188
3189 if (EventType == UIEventTimeOut) {
3190 gUserInput->Action = BROWSER_ACTION_FORM_EXIT;
3191 ControlFlag = CfExit;
3192 break;
3193 }
3194
3195 switch (Key.UnicodeChar) {
3196 case CHAR_CARRIAGE_RETURN:
3197 if(MenuOption == NULL || MenuOption->GrayOut || MenuOption->ReadOnly) {
3198 ControlFlag = CfReadKey;
3199 break;
3200 }
3201
3202 ScreenOperation = UiSelect;
3203 gDirection = 0;
3204 break;
3205
3206 //
3207 // We will push the adjustment of these numeric values directly to the input handler
3208 // NOTE: we won't handle manual input numeric
3209 //
3210 case '+':
3211 case '-':
3212 //
3213 // If the screen has no menu items, and the user didn't select UiReset
3214 // ignore the selection and go back to reading keys.
3215 //
3216 ASSERT(MenuOption != NULL);
3217 if(IsListEmpty (&gMenuOption) || MenuOption->GrayOut || MenuOption->ReadOnly) {
3218 ControlFlag = CfReadKey;
3219 break;
3220 }
3221
3222 Statement = MenuOption->ThisTag;
3223 if ((Statement->OpCode->OpCode == EFI_IFR_DATE_OP)
3224 || (Statement->OpCode->OpCode == EFI_IFR_TIME_OP)
3225 || ((Statement->OpCode->OpCode == EFI_IFR_NUMERIC_OP) && (GetFieldFromNum(Statement->OpCode) != 0))
3226 ){
3227 if (Key.UnicodeChar == '+') {
3228 gDirection = SCAN_RIGHT;
3229 } else {
3230 gDirection = SCAN_LEFT;
3231 }
3232
3233 Status = ProcessOptions (MenuOption, TRUE, &OptionString, TRUE);
3234 if (OptionString != NULL) {
3235 FreePool (OptionString);
3236 }
3237 if (EFI_ERROR (Status)) {
3238 //
3239 // Repaint to clear possible error prompt pop-up
3240 //
3241 Repaint = TRUE;
3242 NewLine = TRUE;
3243 } else {
3244 ControlFlag = CfExit;
3245 }
3246 }
3247 break;
3248
3249 case '^':
3250 ScreenOperation = UiUp;
3251 break;
3252
3253 case 'V':
3254 case 'v':
3255 ScreenOperation = UiDown;
3256 break;
3257
3258 case ' ':
3259 if(IsListEmpty (&gMenuOption)) {
3260 ControlFlag = CfReadKey;
3261 break;
3262 }
3263
3264 ASSERT(MenuOption != NULL);
3265 if (MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_CHECKBOX_OP && !MenuOption->GrayOut && !MenuOption->ReadOnly) {
3266 ScreenOperation = UiSelect;
3267 }
3268 break;
3269
3270 case 'D':
3271 case 'd':
3272 if (!MultiHelpPage) {
3273 ControlFlag = CfReadKey;
3274 break;
3275 }
3276 ControlFlag = CfUpdateHelpString;
3277 HelpPageIndex = HelpPageIndex < HelpPageCount - 1 ? HelpPageIndex + 1 : HelpPageCount - 1;
3278 break;
3279
3280 case 'U':
3281 case 'u':
3282 if (!MultiHelpPage) {
3283 ControlFlag = CfReadKey;
3284 break;
3285 }
3286 ControlFlag = CfUpdateHelpString;
3287 HelpPageIndex = HelpPageIndex > 0 ? HelpPageIndex - 1 : 0;
3288 break;
3289
3290 case CHAR_NULL:
3291 for (Index = 0; Index < mScanCodeNumber; Index++) {
3292 if (Key.ScanCode == gScanCodeToOperation[Index].ScanCode) {
3293 ScreenOperation = gScanCodeToOperation[Index].ScreenOperation;
3294 break;
3295 }
3296 }
3297
3298 if (((FormData->Attribute & HII_DISPLAY_MODAL) != 0) && (Key.ScanCode == SCAN_ESC || Index == mScanCodeNumber)) {
3299 //
3300 // ModalForm has no ESC key and Hot Key.
3301 //
3302 ControlFlag = CfReadKey;
3303 } else if (Index == mScanCodeNumber) {
3304 //
3305 // Check whether Key matches the registered hot key.
3306 //
3307 HotKey = NULL;
3308 HotKey = GetHotKeyFromRegisterList (&Key);
3309 if (HotKey != NULL) {
3310 ScreenOperation = UiHotKey;
3311 }
3312 }
3313 break;
3314 }
3315 break;
3316
3317 case CfScreenOperation:
3318 if ((ScreenOperation != UiReset) && (ScreenOperation != UiHotKey)) {
3319 //
3320 // If the screen has no menu items, and the user didn't select UiReset or UiHotKey
3321 // ignore the selection and go back to reading keys.
3322 //
3323 if (IsListEmpty (&gMenuOption)) {
3324 ControlFlag = CfReadKey;
3325 break;
3326 }
3327 }
3328
3329 for (Index = 0;
3330 Index < ARRAY_SIZE (gScreenOperationToControlFlag);
3331 Index++
3332 ) {
3333 if (ScreenOperation == gScreenOperationToControlFlag[Index].ScreenOperation) {
3334 ControlFlag = gScreenOperationToControlFlag[Index].ControlFlag;
3335 break;
3336 }
3337 }
3338 break;
3339
3340 case CfUiSelect:
3341 ControlFlag = CfRepaint;
3342
3343 ASSERT(MenuOption != NULL);
3344 Statement = MenuOption->ThisTag;
3345 if (Statement->OpCode->OpCode == EFI_IFR_TEXT_OP) {
3346 break;
3347 }
3348
3349 switch (Statement->OpCode->OpCode) {
3350 case EFI_IFR_REF_OP:
3351 case EFI_IFR_ACTION_OP:
3352 case EFI_IFR_RESET_BUTTON_OP:
3353 ControlFlag = CfExit;
3354 break;
3355
3356 default:
3357 //
3358 // Editable Questions: oneof, ordered list, checkbox, numeric, string, password
3359 //
3360 RefreshKeyHelp (gFormData, Statement, TRUE);
3361 Status = ProcessOptions (MenuOption, TRUE, &OptionString, TRUE);
3362
3363 if (OptionString != NULL) {
3364 FreePool (OptionString);
3365 }
3366
3367 if (EFI_ERROR (Status)) {
3368 Repaint = TRUE;
3369 NewLine = TRUE;
3370 RefreshKeyHelp (gFormData, Statement, FALSE);
3371 break;
3372 } else {
3373 ControlFlag = CfExit;
3374 break;
3375 }
3376 }
3377 break;
3378
3379 case CfUiReset:
3380 //
3381 // We come here when someone press ESC
3382 // If the policy is not exit front page when user press ESC, process here.
3383 //
3384 if (!FormExitPolicy()) {
3385 Repaint = TRUE;
3386 NewLine = TRUE;
3387 ControlFlag = CfRepaint;
3388 break;
3389 }
3390
3391 gUserInput->Action = BROWSER_ACTION_FORM_EXIT;
3392 ControlFlag = CfExit;
3393 break;
3394
3395 case CfUiHotKey:
3396 ControlFlag = CfRepaint;
3397
3398 ASSERT (HotKey != NULL);
3399
3400 if (FxConfirmPopup(HotKey->Action)) {
3401 gUserInput->Action = HotKey->Action;
3402 if ((HotKey->Action & BROWSER_ACTION_DEFAULT) == BROWSER_ACTION_DEFAULT) {
3403 gUserInput->DefaultId = HotKey->DefaultId;
3404 }
3405 ControlFlag = CfExit;
3406 } else {
3407 Repaint = TRUE;
3408 NewLine = TRUE;
3409 ControlFlag = CfRepaint;
3410 }
3411
3412 break;
3413
3414 case CfUiLeft:
3415 ControlFlag = CfRepaint;
3416 ASSERT(MenuOption != NULL);
3417 if ((MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_DATE_OP) || (MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_TIME_OP)) {
3418 if (MenuOption->Sequence != 0) {
3419 //
3420 // In the middle or tail of the Date/Time op-code set, go left.
3421 //
3422 ASSERT(NewPos != NULL);
3423 NewPos = NewPos->BackLink;
3424 }
3425 }
3426 break;
3427
3428 case CfUiRight:
3429 ControlFlag = CfRepaint;
3430 ASSERT(MenuOption != NULL);
3431 if ((MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_DATE_OP) || (MenuOption->ThisTag->OpCode->OpCode == EFI_IFR_TIME_OP)) {
3432 if (MenuOption->Sequence != 2) {
3433 //
3434 // In the middle or tail of the Date/Time op-code set, go left.
3435 //
3436 ASSERT(NewPos != NULL);
3437 NewPos = NewPos->ForwardLink;
3438 }
3439 }
3440 break;
3441
3442 case CfUiUp:
3443 ControlFlag = CfRepaint;
3444 NewLine = TRUE;
3445
3446 SavedListEntry = NewPos;
3447 ASSERT(NewPos != NULL);
3448
3449 MenuOption = MENU_OPTION_FROM_LINK (NewPos);
3450 ASSERT (MenuOption != NULL);
3451
3452 //
3453 // Adjust Date/Time position before we advance forward.
3454 //
3455 AdjustDateAndTimePosition (TRUE, &NewPos);
3456
3457 NewPos = NewPos->BackLink;
3458 //
3459 // Find next selectable menu or the first menu beyond current form.
3460 //
3461 Difference = MoveToNextStatement (TRUE, &NewPos, MenuOption->Row - TopRow, FALSE);
3462 if (Difference < 0) {
3463 //
3464 // We hit the begining MenuOption that can be focused
3465 // so we simply scroll to the top.
3466 //
3467 Repaint = TRUE;
3468 if (TopOfScreen != gMenuOption.ForwardLink || SkipValue != 0) {
3469 TopOfScreen = gMenuOption.ForwardLink;
3470 NewPos = SavedListEntry;
3471 SkipValue = 0;
3472 } else {
3473 //
3474 // Scroll up to the last page when we have arrived at top page.
3475 //
3476 TopOfScreen = FindTopOfScreenMenu (gMenuOption.BackLink, BottomRow - TopRow, &SkipValue);
3477 NewPos = gMenuOption.BackLink;
3478 MoveToNextStatement (TRUE, &NewPos, BottomRow - TopRow, TRUE);
3479 }
3480 } else {
3481 NextMenuOption = MENU_OPTION_FROM_LINK (NewPos);
3482
3483 if (MenuOption->Row < TopRow + Difference + NextMenuOption->Skip) {
3484 //
3485 // Previous focus MenuOption is above the TopOfScreen, so we need to scroll
3486 //
3487 TopOfScreen = NewPos;
3488 Repaint = TRUE;
3489 SkipValue = 0;
3490 }
3491
3492 //
3493 // Check whether new highlight menu is selectable, if not, keep highlight on the old one.
3494 //
3495 // BottomRow - TopRow + 1 means the total rows current forms supported.
3496 // Difference + NextMenuOption->Skip + 1 means the distance between last highlight menu
3497 // and new top menu. New top menu will all shows in next form, but last highlight menu
3498 // may only shows 1 line. + 1 at right part means at least need to keep 1 line for the
3499 // last highlight menu.
3500 //
3501 if (!IsSelectable(NextMenuOption) && IsSelectable(MenuOption) &&
3502 (BottomRow - TopRow + 1 >= Difference + NextMenuOption->Skip + 1)) {
3503 NewPos = SavedListEntry;
3504 }
3505 }
3506
3507 UpdateStatusBar (INPUT_ERROR, FALSE);
3508
3509 //
3510 // If we encounter a Date/Time op-code set, rewind to the first op-code of the set.
3511 //
3512 AdjustDateAndTimePosition (TRUE, &TopOfScreen);
3513 AdjustDateAndTimePosition (TRUE, &NewPos);
3514
3515 UpdateHighlightMenuInfo(NewPos, TopOfScreen, SkipValue);
3516 break;
3517
3518 case CfUiPageUp:
3519 //
3520 // SkipValue means lines is skipped when show the top menu option.
3521 //
3522 ControlFlag = CfRepaint;
3523 NewLine = TRUE;
3524 Repaint = TRUE;
3525
3526 Link = TopOfScreen;
3527 //
3528 // First minus the menu of the top screen, it's value is SkipValue.
3529 //
3530 if (SkipValue >= BottomRow - TopRow + 1) {
3531 //
3532 // SkipValue > (BottomRow - TopRow + 1) means current menu has more than one
3533 // form of options to be show, so just update the SkipValue to show the next
3534 // parts of options.
3535 //
3536 SkipValue -= BottomRow - TopRow + 1;
3537 NewPos = TopOfScreen;
3538 break;
3539 } else {
3540 Index = (BottomRow + 1) - SkipValue - TopRow;
3541 }
3542
3543 TopOfScreen = FindTopOfScreenMenu(TopOfScreen, Index, &SkipValue);
3544 NewPos = TopOfScreen;
3545 MoveToNextStatement (FALSE, &NewPos, BottomRow - TopRow, FALSE);
3546
3547 UpdateStatusBar (INPUT_ERROR, FALSE);
3548
3549 //
3550 // If we encounter a Date/Time op-code set, rewind to the first op-code of the set.
3551 // Don't do this when we are already in the first page.
3552 //