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DialogFile.asm@ 589

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Last change on this file since 589 was 589, checked in by Krister Nordvall, 9 years ago

Changes:

BIOS: Fixed a purely cosmetic bug from r542 where, in builds containing MODULE_EBIOS, the boot menu would display an incorrect drive size (0.4 kB with MODULE_STRINGS_COMPRESSED or 0.5 kB without) for old drives with no support for LBA.
Fixed a bug from r392 where Vision_DetectAndReturnIDinAXandPortInDXifControllerPresent would return the ID in AL instead of AH (if DANGEROUS_DETECTION had been defined).
Fixed a bug from r587 in AdvAtaInit.asm that would prevent detection of QDI Vision controllers.
Also changed how the QDI Vision IDs are defined (removed the need for shifting) to avoid confusion. This fixed a potential bug from r587 in AdvAtaInit.asm where some IDs were not being shifted.
Fixed a bug in PDC20x30.asm from r587 where GetPdcIDtoAX would not return with the IDE base port in DX so DisablePdcProgrammingMode would fail.
Made some changes to ModuleDependency.inc and other files so that MODULE_ADVANCED_ATA now requires USE_386. Consequently it is no longer included in the regular AT-builds, only in the 386_8k-build.
Moved the UNROLL_SECTORS_IN_CX_TO_xWORDS macros from IDE_8bit.inc to IdeIO.inc which means it's now possible to build a BIOS without MODULE_8BIT_IDE.
XTIDECFG: Added a minimum DOS version check (since it needs DOS version 2+) to allow the program to quit gracefully in the unlikely scenario where someone tries to run it under DOS version 1.
Made some changes to Drive.asm to improve drive enumeration. The old method using GET_DOS_DRIVE_PARAMETER_BLOCK_FOR_SPECIFIC_DRIVE worked well in Windows XP but not in Windows 98 SE (in Windows or in DOS mode). The two problems were; 1) The function call would access the drives which on single floppy drive systems would cause Windows to swap between A: and B: (throwing a blue screen asking the user to insert a disk etc). 2) Only floppy drives and FAT16 drives would be available in the list of drives, no FAT32/optical/network drives.
Improved code in IdeControllerMenu.asm so that the default port addresses for all IDE interfaces are now restored when (re-)selecting the (same) type of IDE device.
Also made it impossible to select a device type unless the required module is included in the loaded BIOS.
The version check done when loading a BIOS now uses the FLASH_SIGNATURE definition from Version.inc. Any changes affecting RomVars now only requires updating that definition. This means that changes to RomVars must be implemented in both the BIOS and XTIDECFG before being committed to the repository.
Added a compatibility fix for 3Com 3C503 cards to the ROM checksumming code in Buffers.asm (Buffers_GenerateChecksum).
SerDrive: Made some minor changes to file names and paths to improve compatibility with case sensitive environments.
BIOSDRVS: Made a minor size optimization which as a side effect also makes it compatible with all DOS versions including DOS version 1.
Library: Renamed the WAIT_RETRACE_IF_NECESSARY_THEN macro to CALL_WAIT_FOR_RETRACE_IF_NECESSARY_THEN and made a tail-call-optimized version of it (JMP_WAIT_FOR_RETRACE_IF_NECESSARY_THEN).
A speed optimization to the eRCL_IM macro for 386 and higher. This change breaks emulation in the sense that the macro will fail when given a memory operand as the first parameter.
Other minor optimizations and fixes.

File size: 22.8 KB

Line
1	; Project name : Assembly Library
2	; Description : Displays file dialog.
3
4	;
5	; XTIDE Universal BIOS and Associated Tools
6	; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
7	;
8	; This program is free software; you can redistribute it and/or modify
9	; it under the terms of the GNU General Public License as published by
10	; the Free Software Foundation; either version 2 of the License, or
11	; (at your option) any later version.
12	;
13	; This program is distributed in the hope that it will be useful,
14	; but WITHOUT ANY WARRANTY; without even the implied warranty of
15	; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	; GNU General Public License for more details.
17	; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
18	;
19
20	CURRENTDIR_CHARACTERS EQU 002Eh
21	UPDIR_CHARACTERS EQU 2E2Eh
22
23	; Section containing code
24	SECTION .text
25
26	;--------------------------------------------------------------------
27	; DialogFile_GetFileNameWithIoInDSSI
28	; Parameters:
29	; DS:SI: Ptr to FILE_DIALOG_IO
30	; SS:BP: Ptr to parent MENU
31	; Returns:
32	; Nothing
33	; Corrupts registers:
34	; AX, BX, CX, DX, SI, DI
35	;--------------------------------------------------------------------
36	ALIGN JUMP_ALIGN
37	DialogFile_GetFileNameWithIoInDSSI:
38	mov bx, FileEventHandler
39	mov BYTE [si+FILE_DIALOG_IO.bUserCancellation], TRUE
40	jmp Dialog_DisplayWithDialogInputInDSSIandHandlerInBX
41
42
43	;--------------------------------------------------------------------
44	; FileEventHandler
45	; Common parameters for all events:
46	; BX: Menu event (anything from MENUEVENT struct)
47	; SS:BP: Ptr to DIALOG
48	; Common return values for all events:
49	; CF: Set if event processed
50	; Cleared if event not processed
51	; Corrupts registers:
52	; All
53	;--------------------------------------------------------------------
54	ALIGN JUMP_ALIGN
55	FileEventHandler:
56	jmp [cs:bx+.rgfnEventHandlers]
57
58
59	ALIGN JUMP_ALIGN
60	.ItemSelectedFromCX:
61	call LoadItemStringBufferToESDI
62	call Registers_CopyESDItoDSSI
63	call ItemLineSplitter_GetLineToDSSIandLengthToCXfromStringInDSSIwithIndexInCX
64	jmp ParseSelectionFromItemLineInDSSI
65
66
67	ALIGN JUMP_ALIGN
68	.RefreshInformation:
69	call GetInfoLinesToCXandDialogFlagsToAX
70	mov si, [cs:.rgszInfoStringLookup]
71	xor bx, bx
72	xchg dx, ax
73	ALIGN JUMP_ALIGN
74	.InfoLineLoop:
75	shr dl, 1
76	jnc SHORT .CheckNextFlag
77	mov si, [cs:bx+.rgszInfoStringLookup]
78	push bx
79	CALL_DISPLAY_LIBRARY PrintNullTerminatedStringFromCSSI
80	pop bx
81	ALIGN JUMP_ALIGN
82	.CheckNextFlag:
83	inc bx
84	inc bx
85	loop .InfoLineLoop
86	stc ; Event processed
87	ret
88
89
90	ALIGN JUMP_ALIGN
91	.RefreshItemFromCX:
92	call LoadItemStringBufferToESDI
93	mov ax, FILE_STRING_LENGTH
94	xchg ax, cx
95	mul cx
96	add di, ax
97	mov si, di
98	mov bx, es
99	dec cx ; Do not print LF at the end of file string
100	CALL_DISPLAY_LIBRARY PrintCharBufferFromBXSIwithLengthInCX
101	stc
102	ret
103
104
105	ALIGN WORD_ALIGN
106	.rgszInfoStringLookup:
107	dw g_szChangeDrive
108	dw g_szSelectDirectory
109	dw g_szCreateNew
110
111	.rgfnEventHandlers:
112	istruc MENUEVENT
113	at MENUEVENT.InitializeMenuinitFromDSSI, dw InitializeMenuinitFromSSBP
114	at MENUEVENT.ExitMenu, dw Dialog_EventExitMenu
115	at MENUEVENT.IdleProcessing, dw Dialog_EventNotHandled
116	at MENUEVENT.ItemHighlightedFromCX, dw Dialog_EventNotHandled
117	at MENUEVENT.ItemSelectedFromCX, dw .ItemSelectedFromCX
118	at MENUEVENT.KeyStrokeInAX, dw HandleFunctionKeyFromAH
119	at MENUEVENT.RefreshTitle, dw Dialog_EventRefreshTitle
120	at MENUEVENT.RefreshInformation, dw .RefreshInformation
121	at MENUEVENT.RefreshItemFromCX, dw .RefreshItemFromCX
122	iend
123
124
125	;--------------------------------------------------------------------
126	; ReInitializeMenuinitFromSSBP
127	; InitializeMenuinitFromSSBP
128	; Parameters:
129	; SS:BP: Ptr to DIALOG
130	; Returns:
131	; Nothing
132	; Corrupts registers:
133	; All, except BP
134	;--------------------------------------------------------------------
135	ALIGN JUMP_ALIGN
136	ReInitializeMenuinitFromSSBP:
137	call DisplayLoadingMessageInInformationArea
138	InitializeMenuinitFromSSBP:
139	call LoadItemStringBufferToESDI
140	call CreateStringFromCurrentDirectoryContentsToESDI
141	call LoadItemStringBufferToESDI
142	call SortDirectoryContentsStringFromESDIwithCountInCX
143	call RemoveLastLFandTerminateESDIwithNull
144
145	call Registers_CopySSBPtoDSSI
146	xor ax, ax
147	call Dialog_EventInitializeMenuinitFromDSSIwithHighlightedItemInAX
148	call GetInfoLinesToCXandDialogFlagsToAX
149	mov [bp+MENUINIT.bInfoLines], cl
150	CALL_DISPLAY_LIBRARY GetColumnsToALandRowsToAH
151	mov [bp+MENUINIT.bHeight], ah ; Always max height
152	mov WORD [bp+MENU.wFirstVisibleItem], 0
153	ret
154
155
156	;--------------------------------------------------------------------
157	; LoadItemStringBufferToESDI
158	; Parameters:
159	; SS:BP: Ptr to DIALOG
160	; Returns:
161	; ES:DI: Ptr to item string buffer
162	; Corrupts registers:
163	; Nothing
164	;--------------------------------------------------------------------
165	ALIGN JUMP_ALIGN
166	LoadItemStringBufferToESDI:
167	les di, [bp+DIALOG.fpDialogIO]
168	les di, [es:di+FILE_DIALOG_IO.fszItemBuffer]
169	ret
170
171
172	;--------------------------------------------------------------------
173	; CreateStringFromCurrentDirectoryContentsToESDI
174	; Parameters:
175	; ES:DI: Buffer where to create item string
176	; SS:BP: Ptr to DIALOG
177	; Returns:
178	; CX: Number of files or directories found
179	; Corrupts registers:
180	; AX, BX, DX, SI, DI, DS
181	;--------------------------------------------------------------------
182	ALIGN JUMP_ALIGN
183	CreateStringFromCurrentDirectoryContentsToESDI:
184	mov bx, di
185	CALL_DISPLAY_LIBRARY PushDisplayContext
186	mov cx, -1
187	CALL_DISPLAY_LIBRARY PrepareOffScreenBufferInESBXwithLengthInCX ; ES:DI now points to buffer
188
189	lds si, [bp+DIALOG.fpDialogIO]
190	eMOVZX cx, [si+FILE_DIALOG_IO.bFileAttributes]
191	lds si, [si+FILE_DIALOG_IO.fpFileFilterString]
192	call Directory_UpdateDTAForFirstMatchForDSSIwithAttributesInCX
193
194	call .ClearDLifInRootDirectory
195	call Directory_GetDiskTransferAreaAddressToDSSI
196	xor cx, cx ; Clear file/directory count
197	call .FindMatchingFilesAndPrintThemToOffScreenBuffer
198
199	JMP_DISPLAY_LIBRARY PopDisplayContext
200
201	;--------------------------------------------------------------------
202	; .ClearDLifInRootDirectory
203	; Parameters:
204	; SS:BP: Ptr to DIALOG
205	; ES:DI: Ptr to destination string buffer
206	; Returns:
207	; DL: Cleared if in root directory
208	; Set if in any other directory
209	; Corrupts registers:
210	; AX, SI, DS
211	;--------------------------------------------------------------------
212	ALIGN JUMP_ALIGN
213	.ClearDLifInRootDirectory:
214	call Registers_CopyESDItoDSSI
215	call Directory_WriteCurrentPathToDSSI
216	mov dl, [si]
217	ret
218
219	;--------------------------------------------------------------------
220	; .FindMatchingFilesAndPrintThemToOffScreenBuffer
221	; Parameters:
222	; CX: Initial directory count
223	; DL: Zero if root directory selected
224	; DS:SI: Ptr to DTA with first matching file
225	; Returns:
226	; CX: Incremented by number of files/directories found
227	; Corrupts registers:
228	; AX, BX, DX, DI, DS
229	;--------------------------------------------------------------------
230	ALIGN JUMP_ALIGN
231	.FindMatchingFilesAndPrintThemToOffScreenBuffer:
232	call AppendFileFromDTAinDSSItoOffScreenBuffer
233	call Directory_UpdateDTAForNextMatchUsingPreviousParameters
234	jnc SHORT .FindMatchingFilesAndPrintThemToOffScreenBuffer
235	ret
236
237
238	;--------------------------------------------------------------------
239	; AppendFileFromDTAinDSSItoOffScreenBuffer
240	; Parameters:
241	; CX: Files/directories found
242	; DL: Zero if root directory selected
243	; DS:SI: Ptr to DTA containing file information
244	; Returns:
245	; CX: Incremented by number of files/directories found
246	; Corrupts registers:
247	; AX, BX
248	;--------------------------------------------------------------------
249	ALIGN JUMP_ALIGN
250	AppendFileFromDTAinDSSItoOffScreenBuffer:
251	call .FilterCurrentDirectory ; We never want "."
252	call .FilterUpDirectoryWhenInRoot ; No ".." when in root directory
253	inc cx ; Nothing filtered so increment files/directories
254
255	push bp
256	push si
257	push dx
258	push cx
259	call .FormatFileOrDirectoryToBufferFromDTAinDSSI
260	pop cx
261	pop dx
262	pop si
263	pop bp
264	ret
265
266	;--------------------------------------------------------------------
267	; .FilterCurrentDirectory
268	; .FilterUpDirectoryWhenInRoot
269	; Parameters:
270	; DL: Zero if root directory selected
271	; DS:SI: Ptr to DTA containing file information
272	; Returns:
273	; Nothing
274	; Returns from AppendFileToBufferInESDIfromDtaInDSSI when filtering
275	; Corrupts registers:
276	; AX
277	;--------------------------------------------------------------------
278	ALIGN JUMP_ALIGN
279	.FilterCurrentDirectory:
280	cmp WORD [si+DTA.szFile], CURRENTDIR_CHARACTERS
281	je SHORT .DoFilter
282	ret
283
284	ALIGN JUMP_ALIGN
285	.FilterUpDirectoryWhenInRoot:
286	test dl, dl ; Set ZF if root directory selected
287	jnz SHORT .ReturnWithoutFiltering
288	cmp WORD [si+DTA.szFile], UPDIR_CHARACTERS
289	jne SHORT .ReturnWithoutFiltering
290	.DoFilter:
291	add sp, BYTE 2 ; Remove return address from stack
292	ALIGN JUMP_ALIGN, ret
293	.ReturnWithoutFiltering:
294	ret
295
296	;--------------------------------------------------------------------
297	; .FormatFileOrDirectoryToBufferFromDTAinDSSI
298	; Parameters:
299	; DS:SI: Ptr to DTA containing file information
300	; Returns:
301	; Nothing
302	; Corrupts registers:
303	; AX, BX, CX, DX, SI, DI, BP
304	;--------------------------------------------------------------------
305	ALIGN JUMP_ALIGN
306	.FormatFileOrDirectoryToBufferFromDTAinDSSI:
307	mov bp, sp
308	lea ax, [si+DTA.szFile]
309
310	test BYTE [si+DTA.bFileAttributes], FLG_FILEATTR_DIRECTORY
311	jnz SHORT .FormatDirectory
312	; Fall to .FormatFile
313
314	;--------------------------------------------------------------------
315	; .FormatFile
316	; Parameters:
317	; BP: SP before pushing formatting parameters
318	; DS:AX: Far pointer to file name
319	; DS:SI: Ptr to DTA containing file information
320	; Returns:
321	; Nothing
322	; Corrupts registers:
323	; AX, BX, CX, DX, SI, DI
324	;--------------------------------------------------------------------
325	.FormatFile:
326	xchg si, ax
327	call String_ConvertDSSItoLowerCase
328	xchg ax, si
329
330	; Push parameters for file name
331	push ax ; Push file name offset
332	push ds ; Push file name segment
333
334	; Push parameters for file size
335	mov ax, [si+DTA.dwFileSize]
336	mov dx, [si+DTA.dwFileSize+2]
337	xor bx, bx
338	xor cx, cx
339	call Size_GetSizeToAXAndCharToDLfromBXDXAXwithMagnitudeInCX
340	mov cl, 'i'
341	cmp dl, ' '
342	eCMOVE cl, dl
343	push ax
344	push dx
345	push cx
346
347	; Format to buffer
348	mov si, g_szFileFormat
349	jmp SHORT .FormatStringInCSSIandReturn
350
351	;--------------------------------------------------------------------
352	; .FormatDirectory
353	; Parameters:
354	; BP: SP before pushing formatting parameters
355	; DS:AX: Far pointer to directory name
356	; DS:SI: Ptr to DTA containing file information
357	; Returns:
358	; Nothing
359	; Corrupts registers:
360	; AX, SI, DI
361	;--------------------------------------------------------------------
362	ALIGN JUMP_ALIGN
363	.FormatDirectory:
364	push ax ; Push directory name offset
365	push ds ; Push directory name segment
366	mov ax, g_szSub
367	cmp WORD [si+DTA.szFile], UPDIR_CHARACTERS
368	eCMOVE ax, g_szUp
369	push ax
370	mov si, g_szDirectoryFormat
371	ALIGN JUMP_ALIGN
372	.FormatStringInCSSIandReturn:
373	JMP_DISPLAY_LIBRARY FormatNullTerminatedStringFromCSSI
374
375
376	;--------------------------------------------------------------------
377	; SortDirectoryContentsStringFromESDIwithCountInCX
378	; Parameters:
379	; CX: Number of files and directories
380	; ES:DI: Buffer containing directory contents string
381	; SS:BP: Ptr to DIALOG
382	; Returns:
383	; ES:DI: Ptr to end of directory contents string
384	; Corrupts registers:
385	; AX, BX, CX, DX, SI, DS
386	;--------------------------------------------------------------------
387	ALIGN JUMP_ALIGN
388	SortDirectoryContentsStringFromESDIwithCountInCX:
389	call Registers_CopyESDItoDSSI
390
391	; Add directory contents string length to DI
392	mov ax, FILE_STRING_LENGTH
393	push ax
394	mul cx
395	add di, ax
396
397	mov dx, cx
398	pop cx
399	mov bx, .FileStringComparator
400	jmp Sort_ItemsFromDSSIwithCountInDXsizeInCXandComparatorInBX
401
402	;--------------------------------------------------------------------
403	; .FileStringComparator
404	; Parameters:
405	; CX: Item size in bytes
406	; DS:SI: Ptr to first item to compare
407	; ES:DI: Ptr to second item to compare
408	; Returns:
409	; FLAGS: Signed comparison between first and second item
410	; Corrupts registers:
411	; Nothing
412	;--------------------------------------------------------------------
413	ALIGN JUMP_ALIGN
414	.FileStringComparator:
415	push di
416	push si
417	push cx
418	push bx
419
420	mov bx, FILE_STRING_LENGTH-2 ; Zero BH
421	cmp WORD [si], UPDIR_CHARACTERS
422	je SHORT .ForceValueFromDSSItoBeLess
423	mov bl, [si+bx]
424	cmp bl, [es:di+FILE_STRING_LENGTH-2] ; 'B' for files, 'R' for directories
425	jne SHORT .ForceValueFromDSSItoBeMoreOrLess
426	repe cmpsb ; Two directories or two files
427
428	ALIGN JUMP_ALIGN
429	.ReturnFromComparison:
430	pop bx
431	pop cx
432	pop si
433	pop di
434	ret
435	ALIGN JUMP_ALIGN
436	.ForceValueFromDSSItoBeMoreOrLess:
437	ja SHORT .ForceValueFromDSSItoBeLess ; Directory in SI, file in DI
438	xchg bl, bh
439	; Fall to ForceValueFromDSSItoBeLess
440	ALIGN JUMP_ALIGN
441	.ForceValueFromDSSItoBeLess:
442	cmp bh, bl
443	jmp SHORT .ReturnFromComparison
444
445
446	;--------------------------------------------------------------------
447	; RemoveLastLFandTerminateESDIwithNull
448	; Parameters:
449	; ES:DI: Ptr to end of buffer to terminate
450	; Returns:
451	; Nothing
452	; Corrupts registers:
453	; AX
454	;--------------------------------------------------------------------
455	ALIGN JUMP_ALIGN
456	RemoveLastLFandTerminateESDIwithNull:
457	dec di
458	xor ax, ax
459	stosb
460	ret
461
462
463	;--------------------------------------------------------------------
464	; GetInfoLinesToCXandDialogFlagsToAX
465	; Parameters:
466	; SS:BP: Ptr to DIALOG
467	; Returns:
468	; AX: Dialog flags
469	; CX: Number of info lines to be displayed
470	; Corrupts registers:
471	; SI, DS
472	;--------------------------------------------------------------------
473	ALIGN JUMP_ALIGN
474	GetInfoLinesToCXandDialogFlagsToAX:
475	xor ax, ax
476	call GetDialogFlagsToAL
477	jmp Bit_GetSetCountToCXfromAX
478
479	;--------------------------------------------------------------------
480	; GetDialogFlagsToAL
481	; Parameters:
482	; SS:BP: Ptr to DIALOG
483	; Returns:
484	; AL: Dialog flags
485	; Corrupts registers:
486	; SI, DS
487	;--------------------------------------------------------------------
488	ALIGN JUMP_ALIGN
489	GetDialogFlagsToAL:
490	lds si, [bp+DIALOG.fpDialogIO]
491	mov al, [si+FILE_DIALOG_IO.bDialogFlags]
492	ret
493
494
495	;--------------------------------------------------------------------
496	; ParseSelectionFromItemLineInDSSI
497	; Parameters:
498	; DS:SI: Ptr to char buffer containing file or directory to be selected
499	; SS:BP: Ptr to DIALOG
500	; Returns:
501	; Nothing
502	; Corrupts registers:
503	; All, except BP
504	;--------------------------------------------------------------------
505	ALIGN JUMP_ALIGN
506	ParseSelectionFromItemLineInDSSI:
507	mov ax, [si]
508	cmp ax, UPDIR_CHARACTERS
509	je SHORT .ChangeToUpdir
510	call Char_IsUpperCaseLetterInAL
511	jc SHORT .ParseAndChangeToSubdirInDSSI
512	call Char_IsDecimalDigitInAL
513	jc SHORT .ParseAndChangeToSubdirInDSSI ; Assume subdir and check for errors
514	; Fall to .ParseAndSelectFileFromDSSI
515
516	;--------------------------------------------------------------------
517	; .ParseAndSelectFileFromDSSI
518	; Parameters:
519	; DS:SI: NULL terminated string selected from dialog
520	; SS:BP: Ptr to DIALOG
521	; Returns:
522	; Nothing (exits dialog)
523	; Corrupts registers:
524	; All, except BP
525	;--------------------------------------------------------------------
526	.ParseAndSelectFileFromDSSI:
527	les di, [bp+DIALOG.fpDialogIO]
528	add di, BYTE FILE_DIALOG_IO.szFile
529	mov cx, FILENAME_BUFFER_SIZE-1
530	call Memory_CopyCXbytesFromDSSItoESDI
531	xor ax, ax
532	stosb ; Terminate with NULL
533	jmp SHORT CloseFileDialogAfterSuccessfulSelection
534
535	;--------------------------------------------------------------------
536	; .ChangeToUpdir
537	; Parameters:
538	; SS:BP: Ptr to DIALOG
539	; Returns:
540	; Nothing
541	; Corrupts registers:
542	; All, except BP
543	;--------------------------------------------------------------------
544	ALIGN JUMP_ALIGN
545	.ChangeToUpdir:
546	push cs
547	pop ds
548	mov si, g_szUpdir
549	jmp SHORT .ChangeDirectoryToDSSI
550
551	;--------------------------------------------------------------------
552	; .ParseAndChangeToSubdirInDSSI
553	; Parameters:
554	; DS:SI: NULL terminated string selected from dialog
555	; SS:BP: Ptr to DIALOG
556	; Returns:
557	; Nothing
558	; Corrupts registers:
559	; All, except BP
560	;--------------------------------------------------------------------
561	ALIGN JUMP_ALIGN
562	.ParseAndChangeToSubdirInDSSI:
563	mov BYTE [si+12], NULL ; Terminate with NULL (unnecessary spaces do not matter)
564	.ChangeDirectoryToDSSI:
565	call Directory_ChangeToPathFromDSSI
566	jc SHORT .ParseAndSelectFileFromDSSI ; Must have been a file starting with number
567	; Fall to RefreshFilesToDisplay
568
569	;--------------------------------------------------------------------
570	; RefreshFilesToDisplay
571	; Parameters:
572	; SS:BP: Ptr to DIALOG
573	; Returns:
574	; Nothing
575	; Corrupts registers:
576	; All, except BP
577	;--------------------------------------------------------------------
578	ALIGN JUMP_ALIGN
579	RefreshFilesToDisplay:
580	call ReInitializeMenuinitFromSSBP
581	jmp MenuInit_RefreshMenuWindow
582
583
584	;--------------------------------------------------------------------
585	; HandleFunctionKeyFromAH
586	; Parameters:
587	; AH: Scancode for function key
588	; SS:BP: Ptr to DIALOG
589	; Returns:
590	; Nothing
591	; Corrupts registers:
592	; AX, SI, DI, BP
593	;--------------------------------------------------------------------
594	ALIGN JUMP_ALIGN
595	HandleFunctionKeyFromAH:
596	call GetDialogFlagsToAL
597	cmp ah, KEY_FILEDIALOG_NEW_FILE_OR_DIR
598	je SHORT HandleFunctionKeyForCreatingNewFileOrDirectory
599	cmp ah, KEY_FILEDIALOG_SELECT_DIRECTORY
600	je SHORT HandleFunctionKeyForSelectingDirectoryInsteadOfFile
601	cmp ah, KEY_FILEDIALOG_CHANGE_DRIVE
602	je SHORT HandleFunctionKeyForDriveChange
603	ReturnWithoutHandlingKeystroke:
604	clc ; Event not processed
605	ret
606
607
608	;--------------------------------------------------------------------
609	; HandleFunctionKeyForCreatingNewFileOrDirectory
610	; Parameters:
611	; AL: File dialog flags
612	; SS:BP: Ptr to DIALOG
613	; Returns:
614	; Closes file dialog
615	; Corrupts registers:
616	; All, except BP
617	;--------------------------------------------------------------------
618	ALIGN JUMP_ALIGN
619	HandleFunctionKeyForCreatingNewFileOrDirectory:
620	test al, FLG_FILEDIALOG_NEW
621	jz SHORT ReturnWithoutHandlingKeystroke
622
623	mov cx, STRING_DIALOG_IO_size
624	call Memory_ReserveCXbytesFromStackToDSSI
625
626	;;; InitializeStringDialogIoInDSSIforInputtingFileName
627	call InitializeNullStringsToDialogInputInDSSI
628	mov WORD [si+DIALOG_INPUT.fszTitle], g_szEnterNewFileOrDirectory
629	mov WORD [si+STRING_DIALOG_IO.fnCharFilter], NULL
630	mov WORD [si+STRING_DIALOG_IO.wBufferSize], FILENAME_BUFFER_SIZE
631	les ax, [bp+DIALOG.fpDialogIO]
632	add ax, BYTE FILE_DIALOG_IO.szFile
633	mov [si+STRING_DIALOG_IO.fpReturnBuffer], ax
634	mov [si+STRING_DIALOG_IO.fpReturnBuffer+2], es
635	;;;
636
637	CALL_MENU_LIBRARY GetStringWithIoInDSSI
638	mov al, [si+STRING_DIALOG_IO.bUserCancellation]
639	add sp, BYTE STRING_DIALOG_IO_size
640	test al, al ; User cancellation?
641	jnz SHORT ReturnWithoutHandlingKeystroke
642	jmp CloseFileDialogAfterSuccessfulSelection
643
644
645	;--------------------------------------------------------------------
646	; HandleFunctionKeyForSelectingDirectoryInsteadOfFile
647	; Parameters:
648	; AL: File dialog flags
649	; SS:BP: Ptr to DIALOG
650	; Returns:
651	; Closes file dialog
652	; Corrupts registers:
653	; All, except BP
654	;--------------------------------------------------------------------
655	ALIGN JUMP_ALIGN
656	HandleFunctionKeyForSelectingDirectoryInsteadOfFile:
657	test al, FLG_FILEDIALOG_DIRECTORY
658	jz SHORT ReturnWithoutHandlingKeystroke
659	; Fall to CloseFileDialogAfterSuccessfulSelection
660
661	;--------------------------------------------------------------------
662	; CloseFileDialogAfterSuccessfulSelection
663	; Parameters:
664	; SS:BP: Ptr to DIALOG
665	; Returns:
666	; Nothing (exits dialog)
667	; Corrupts registers:
668	; All, except BP
669	;--------------------------------------------------------------------
670	ALIGN JUMP_ALIGN
671	CloseFileDialogAfterSuccessfulSelection:
672	lds di, [bp+DIALOG.fpDialogIO]
673	mov BYTE [di+FILE_DIALOG_IO.bUserCancellation], FALSE
674	jmp MenuInit_CloseMenuWindow
675
676
677	;--------------------------------------------------------------------
678	; HandleFunctionKeyForDriveChange
679	; Parameters:
680	; AL: File dialog flags
681	; SS:BP: Ptr to DIALOG
682	; Returns:
683	; Nothing
684	; Corrupts registers:
685	; All, except BP
686	;--------------------------------------------------------------------
687	ALIGN JUMP_ALIGN
688	HandleFunctionKeyForDriveChange:
689	test al, FLG_FILEDIALOG_DRIVES
690	jz SHORT ReturnWithoutHandlingKeystroke
691
692	call DisplayLoadingMessageInInformationArea
693	mov cx, DRIVE_DIALOG_IO_size
694	call Memory_ReserveCXbytesFromStackToDSSI
695	call .DisplayDriveSelectionDialogWithIoInDSSI
696	call .ChangeDriveToUserSelectionFromIoInDSSI
697	add sp, BYTE DRIVE_DIALOG_IO_size
698	ret
699
700	;--------------------------------------------------------------------
701	; .DisplayDriveSelectionDialogWithIoInDSSI
702	; Parameters:
703	; DS:SI: Ptr to uninitialized DRIVE_DIALOG_IO
704	; SS:BP: Ptr to DIALOG
705	; Returns:
706	; DS:SI: Ptr to DRIVE_DIALOG_IO
707	; Corrupts registers:
708	; AX, DI
709	;--------------------------------------------------------------------
710	ALIGN JUMP_ALIGN
711	.DisplayDriveSelectionDialogWithIoInDSSI:
712	call InitializeNullStringsToDialogInputInDSSI
713	mov WORD [si+DIALOG_INPUT.fszTitle], g_szSelectNewDrive
714	JMP_MENU_LIBRARY GetDriveWithIoInDSSI
715
716	;--------------------------------------------------------------------
717	; .ChangeDriveToUserSelectionFromIoInDSSI
718	; Parameters:
719	; DS:SI: Ptr to DRIVE_DIALOG_IO
720	; SS:BP: Ptr to DIALOG
721	; Returns:
722	; Nothing
723	; Corrupts registers:
724	; All, except BP
725	;--------------------------------------------------------------------
726	ALIGN JUMP_ALIGN
727	.ChangeDriveToUserSelectionFromIoInDSSI:
728	cmp BYTE [si+DRIVE_DIALOG_IO.bUserCancellation], FALSE
729	jne SHORT .UserCancelledDriveChange
730
731	mov dl, [si+DRIVE_DIALOG_IO.bReturnDriveNumber]
732	call Drive_SetDefaultFromDL
733	jmp RefreshFilesToDisplay
734	.UserCancelledDriveChange:
735	ret
736
737
738	;--------------------------------------------------------------------
739	; DisplayLoadingMessageInInformationArea
740	; Parameters:
741	; SS:BP: Ptr to DIALOG
742	; Returns:
743	; Nothing
744	; Corrupts registers:
745	; AX, BX, CX, DX, SI, DI
746	;--------------------------------------------------------------------
747	ALIGN JUMP_ALIGN
748	DisplayLoadingMessageInInformationArea:
749	call MenuText_ClearInformationArea
750	call MenuText_PrepareToDrawInformationArea
751	mov si, g_szLoadingPleaseWait
752	JMP_DISPLAY_LIBRARY PrintNullTerminatedStringFromCSSI
753
754
755	;--------------------------------------------------------------------
756	; InitializeNullStringsToDialogInputInDSSI
757	; Parameters:
758	; DS:SI: Ptr to DIALOG_INPUT
759	; SS:BP: Ptr to DIALOG
760	; Returns:
761	; Nothing
762	; Corrupts registers:
763	; AX
764	;--------------------------------------------------------------------
765	ALIGN JUMP_ALIGN
766	InitializeNullStringsToDialogInputInDSSI:
767	mov ax, g_szNull
768	mov [si+DIALOG_INPUT.fszTitle], ax
769	mov [si+DIALOG_INPUT.fszTitle+2], cs
770	mov [si+DIALOG_INPUT.fszItems], ax
771	mov [si+DIALOG_INPUT.fszItems+2], cs
772	mov [si+DIALOG_INPUT.fszInfo], ax
773	mov [si+DIALOG_INPUT.fszInfo+2], cs
774	ret

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source: xtideuniversalbios/trunk/Assembly_Library/Src/Menu/Dialog/DialogFile.asm@ 589

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