[41] | 1 | ; Project name : Assembly Library |
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| 2 | ; Description : Displays file dialog. |
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| 3 | |
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[376] | 4 | ; |
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[505] | 5 | ; XTIDE Universal BIOS and Associated Tools |
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[526] | 6 | ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team. |
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[376] | 7 | ; |
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| 8 | ; This program is free software; you can redistribute it and/or modify |
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| 9 | ; it under the terms of the GNU General Public License as published by |
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| 10 | ; the Free Software Foundation; either version 2 of the License, or |
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| 11 | ; (at your option) any later version. |
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[505] | 12 | ; |
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[376] | 13 | ; This program is distributed in the hope that it will be useful, |
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| 14 | ; but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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[505] | 16 | ; GNU General Public License for more details. |
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[376] | 17 | ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
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| 18 | ; |
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[41] | 19 | |
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| 20 | CURRENTDIR_CHARACTERS EQU 002Eh |
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| 21 | UPDIR_CHARACTERS EQU 2E2Eh |
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| 22 | |
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| 23 | ; Section containing code |
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| 24 | SECTION .text |
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| 25 | |
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| 26 | ;-------------------------------------------------------------------- |
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| 27 | ; DialogFile_GetFileNameWithIoInDSSI |
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| 28 | ; Parameters: |
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| 29 | ; DS:SI: Ptr to FILE_DIALOG_IO |
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| 30 | ; SS:BP: Ptr to parent MENU |
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| 31 | ; Returns: |
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| 32 | ; Nothing |
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| 33 | ; Corrupts registers: |
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[593] | 34 | ; AX, BX, CX, DX, DI |
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[41] | 35 | ;-------------------------------------------------------------------- |
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| 36 | ALIGN JUMP_ALIGN |
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| 37 | DialogFile_GetFileNameWithIoInDSSI: |
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[593] | 38 | ; We need to store default drive because user might change drive but |
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| 39 | ; then cancel the file selection. In that case the original default directory |
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| 40 | ; must be restored. |
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| 41 | call Drive_GetDefaultToAL |
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| 42 | push ax |
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| 43 | |
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[41] | 44 | mov bx, FileEventHandler |
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| 45 | mov BYTE [si+FILE_DIALOG_IO.bUserCancellation], TRUE |
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[593] | 46 | call Dialog_DisplayWithDialogInputInDSSIandHandlerInBX |
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[41] | 47 | |
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[593] | 48 | ; Now restore the default drive if user cancellation |
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| 49 | pop dx |
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| 50 | cmp BYTE [si+FILE_DIALOG_IO.bUserCancellation], TRUE |
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[596] | 51 | jne SHORT .UserDidNotCancel |
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| 52 | jmp Drive_SetDefaultFromDL |
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| 53 | |
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| 54 | .UserDidNotCancel: |
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[593] | 55 | ret |
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[41] | 56 | |
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[593] | 57 | |
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[41] | 58 | ;-------------------------------------------------------------------- |
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| 59 | ; FileEventHandler |
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| 60 | ; Common parameters for all events: |
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| 61 | ; BX: Menu event (anything from MENUEVENT struct) |
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| 62 | ; SS:BP: Ptr to DIALOG |
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| 63 | ; Common return values for all events: |
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| 64 | ; CF: Set if event processed |
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| 65 | ; Cleared if event not processed |
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| 66 | ; Corrupts registers: |
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| 67 | ; All |
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| 68 | ;-------------------------------------------------------------------- |
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| 69 | ALIGN JUMP_ALIGN |
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| 70 | FileEventHandler: |
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| 71 | jmp [cs:bx+.rgfnEventHandlers] |
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| 72 | |
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| 73 | |
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| 74 | ALIGN JUMP_ALIGN |
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| 75 | .ItemSelectedFromCX: |
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| 76 | call LoadItemStringBufferToESDI |
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[106] | 77 | call Registers_CopyESDItoDSSI |
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[52] | 78 | call ItemLineSplitter_GetLineToDSSIandLengthToCXfromStringInDSSIwithIndexInCX |
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[41] | 79 | jmp ParseSelectionFromItemLineInDSSI |
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| 80 | |
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| 81 | |
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| 82 | ALIGN JUMP_ALIGN |
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| 83 | .RefreshInformation: |
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| 84 | call GetInfoLinesToCXandDialogFlagsToAX |
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| 85 | mov si, [cs:.rgszInfoStringLookup] |
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| 86 | xor bx, bx |
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| 87 | xchg dx, ax |
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| 88 | ALIGN JUMP_ALIGN |
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| 89 | .InfoLineLoop: |
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| 90 | shr dl, 1 |
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| 91 | jnc SHORT .CheckNextFlag |
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| 92 | mov si, [cs:bx+.rgszInfoStringLookup] |
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| 93 | push bx |
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| 94 | CALL_DISPLAY_LIBRARY PrintNullTerminatedStringFromCSSI |
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| 95 | pop bx |
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| 96 | ALIGN JUMP_ALIGN |
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| 97 | .CheckNextFlag: |
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| 98 | inc bx |
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| 99 | inc bx |
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| 100 | loop .InfoLineLoop |
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| 101 | stc ; Event processed |
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| 102 | ret |
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| 103 | |
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| 104 | |
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[53] | 105 | ALIGN JUMP_ALIGN |
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| 106 | .RefreshItemFromCX: |
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| 107 | call LoadItemStringBufferToESDI |
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| 108 | mov ax, FILE_STRING_LENGTH |
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| 109 | xchg ax, cx |
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| 110 | mul cx |
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| 111 | add di, ax |
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| 112 | mov si, di |
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| 113 | mov bx, es |
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| 114 | dec cx ; Do not print LF at the end of file string |
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| 115 | CALL_DISPLAY_LIBRARY PrintCharBufferFromBXSIwithLengthInCX |
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| 116 | stc |
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| 117 | ret |
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| 118 | |
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| 119 | |
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[41] | 120 | ALIGN WORD_ALIGN |
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| 121 | .rgszInfoStringLookup: |
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| 122 | dw g_szChangeDrive |
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| 123 | dw g_szSelectDirectory |
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| 124 | dw g_szCreateNew |
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| 125 | |
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| 126 | .rgfnEventHandlers: |
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| 127 | istruc MENUEVENT |
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| 128 | at MENUEVENT.InitializeMenuinitFromDSSI, dw InitializeMenuinitFromSSBP |
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[58] | 129 | at MENUEVENT.ExitMenu, dw Dialog_EventExitMenu |
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[41] | 130 | at MENUEVENT.IdleProcessing, dw Dialog_EventNotHandled |
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| 131 | at MENUEVENT.ItemHighlightedFromCX, dw Dialog_EventNotHandled |
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| 132 | at MENUEVENT.ItemSelectedFromCX, dw .ItemSelectedFromCX |
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| 133 | at MENUEVENT.KeyStrokeInAX, dw HandleFunctionKeyFromAH |
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| 134 | at MENUEVENT.RefreshTitle, dw Dialog_EventRefreshTitle |
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| 135 | at MENUEVENT.RefreshInformation, dw .RefreshInformation |
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[53] | 136 | at MENUEVENT.RefreshItemFromCX, dw .RefreshItemFromCX |
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[41] | 137 | iend |
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| 138 | |
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| 139 | |
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| 140 | ;-------------------------------------------------------------------- |
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[54] | 141 | ; ReInitializeMenuinitFromSSBP |
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[41] | 142 | ; InitializeMenuinitFromSSBP |
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| 143 | ; Parameters: |
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| 144 | ; SS:BP: Ptr to DIALOG |
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| 145 | ; Returns: |
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| 146 | ; Nothing |
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| 147 | ; Corrupts registers: |
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| 148 | ; All, except BP |
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| 149 | ;-------------------------------------------------------------------- |
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| 150 | ALIGN JUMP_ALIGN |
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[54] | 151 | ReInitializeMenuinitFromSSBP: |
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| 152 | call DisplayLoadingMessageInInformationArea |
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[41] | 153 | InitializeMenuinitFromSSBP: |
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| 154 | call LoadItemStringBufferToESDI |
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| 155 | call CreateStringFromCurrentDirectoryContentsToESDI |
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[46] | 156 | call LoadItemStringBufferToESDI |
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| 157 | call SortDirectoryContentsStringFromESDIwithCountInCX |
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[53] | 158 | call RemoveLastLFandTerminateESDIwithNull |
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[54] | 159 | |
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[106] | 160 | call Registers_CopySSBPtoDSSI |
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[52] | 161 | xor ax, ax |
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| 162 | call Dialog_EventInitializeMenuinitFromDSSIwithHighlightedItemInAX |
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[41] | 163 | call GetInfoLinesToCXandDialogFlagsToAX |
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| 164 | mov [bp+MENUINIT.bInfoLines], cl |
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| 165 | CALL_DISPLAY_LIBRARY GetColumnsToALandRowsToAH |
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| 166 | mov [bp+MENUINIT.bHeight], ah ; Always max height |
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[52] | 167 | mov WORD [bp+MENU.wFirstVisibleItem], 0 |
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[41] | 168 | ret |
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| 169 | |
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| 170 | |
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| 171 | ;-------------------------------------------------------------------- |
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| 172 | ; LoadItemStringBufferToESDI |
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| 173 | ; Parameters: |
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| 174 | ; SS:BP: Ptr to DIALOG |
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| 175 | ; Returns: |
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| 176 | ; ES:DI: Ptr to item string buffer |
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| 177 | ; Corrupts registers: |
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| 178 | ; Nothing |
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| 179 | ;-------------------------------------------------------------------- |
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| 180 | ALIGN JUMP_ALIGN |
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| 181 | LoadItemStringBufferToESDI: |
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| 182 | les di, [bp+DIALOG.fpDialogIO] |
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| 183 | les di, [es:di+FILE_DIALOG_IO.fszItemBuffer] |
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| 184 | ret |
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| 185 | |
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| 186 | |
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| 187 | ;-------------------------------------------------------------------- |
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| 188 | ; CreateStringFromCurrentDirectoryContentsToESDI |
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| 189 | ; Parameters: |
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| 190 | ; ES:DI: Buffer where to create item string |
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| 191 | ; SS:BP: Ptr to DIALOG |
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| 192 | ; Returns: |
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[46] | 193 | ; CX: Number of files or directories found |
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[41] | 194 | ; Corrupts registers: |
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[53] | 195 | ; AX, BX, DX, SI, DI, DS |
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[41] | 196 | ;-------------------------------------------------------------------- |
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| 197 | ALIGN JUMP_ALIGN |
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| 198 | CreateStringFromCurrentDirectoryContentsToESDI: |
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[53] | 199 | mov bx, di |
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| 200 | CALL_DISPLAY_LIBRARY PushDisplayContext |
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| 201 | mov cx, -1 |
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| 202 | CALL_DISPLAY_LIBRARY PrepareOffScreenBufferInESBXwithLengthInCX ; ES:DI now points to buffer |
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| 203 | |
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[41] | 204 | lds si, [bp+DIALOG.fpDialogIO] |
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[293] | 205 | eMOVZX cx, [si+FILE_DIALOG_IO.bFileAttributes] |
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[41] | 206 | lds si, [si+FILE_DIALOG_IO.fpFileFilterString] |
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| 207 | call Directory_UpdateDTAForFirstMatchForDSSIwithAttributesInCX |
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[53] | 208 | |
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[41] | 209 | call .ClearDLifInRootDirectory |
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| 210 | call Directory_GetDiskTransferAreaAddressToDSSI |
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[46] | 211 | xor cx, cx ; Clear file/directory count |
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[53] | 212 | call .FindMatchingFilesAndPrintThemToOffScreenBuffer |
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[41] | 213 | |
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[505] | 214 | JMP_DISPLAY_LIBRARY PopDisplayContext |
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[41] | 215 | |
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| 216 | ;-------------------------------------------------------------------- |
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| 217 | ; .ClearDLifInRootDirectory |
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| 218 | ; Parameters: |
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| 219 | ; SS:BP: Ptr to DIALOG |
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| 220 | ; ES:DI: Ptr to destination string buffer |
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| 221 | ; Returns: |
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| 222 | ; DL: Cleared if in root directory |
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| 223 | ; Set if in any other directory |
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| 224 | ; Corrupts registers: |
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| 225 | ; AX, SI, DS |
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| 226 | ;-------------------------------------------------------------------- |
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| 227 | ALIGN JUMP_ALIGN |
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| 228 | .ClearDLifInRootDirectory: |
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[106] | 229 | call Registers_CopyESDItoDSSI |
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[41] | 230 | call Directory_WriteCurrentPathToDSSI |
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| 231 | mov dl, [si] |
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| 232 | ret |
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| 233 | |
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| 234 | ;-------------------------------------------------------------------- |
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[53] | 235 | ; .FindMatchingFilesAndPrintThemToOffScreenBuffer |
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[41] | 236 | ; Parameters: |
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[53] | 237 | ; CX: Initial directory count |
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| 238 | ; DL: Zero if root directory selected |
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| 239 | ; DS:SI: Ptr to DTA with first matching file |
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[41] | 240 | ; Returns: |
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[53] | 241 | ; CX: Incremented by number of files/directories found |
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[41] | 242 | ; Corrupts registers: |
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[53] | 243 | ; AX, BX, DX, DI, DS |
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[41] | 244 | ;-------------------------------------------------------------------- |
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| 245 | ALIGN JUMP_ALIGN |
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[53] | 246 | .FindMatchingFilesAndPrintThemToOffScreenBuffer: |
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| 247 | call AppendFileFromDTAinDSSItoOffScreenBuffer |
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| 248 | call Directory_UpdateDTAForNextMatchUsingPreviousParameters |
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| 249 | jnc SHORT .FindMatchingFilesAndPrintThemToOffScreenBuffer |
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[41] | 250 | ret |
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| 251 | |
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[46] | 252 | |
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[41] | 253 | ;-------------------------------------------------------------------- |
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[53] | 254 | ; AppendFileFromDTAinDSSItoOffScreenBuffer |
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[41] | 255 | ; Parameters: |
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[589] | 256 | ; CX: Files/directories found |
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[41] | 257 | ; DL: Zero if root directory selected |
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| 258 | ; DS:SI: Ptr to DTA containing file information |
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| 259 | ; Returns: |
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[46] | 260 | ; CX: Incremented by number of files/directories found |
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[41] | 261 | ; Corrupts registers: |
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[53] | 262 | ; AX, BX |
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[41] | 263 | ;-------------------------------------------------------------------- |
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| 264 | ALIGN JUMP_ALIGN |
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[53] | 265 | AppendFileFromDTAinDSSItoOffScreenBuffer: |
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[592] | 266 | cmp WORD [si+DTA.szFile], CURRENTDIR_CHARACTERS |
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| 267 | je SHORT .Return ; We never want "." |
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| 268 | test dl, dl |
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| 269 | jnz SHORT .NotInRootDirectory |
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| 270 | cmp WORD [si+DTA.szFile], UPDIR_CHARACTERS |
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| 271 | je SHORT .Return ; No ".." when in root directory |
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| 272 | .NotInRootDirectory: |
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[46] | 273 | inc cx ; Nothing filtered so increment files/directories |
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[41] | 274 | |
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| 275 | push bp |
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| 276 | push si |
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[53] | 277 | push dx |
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[46] | 278 | push cx |
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[41] | 279 | call .FormatFileOrDirectoryToBufferFromDTAinDSSI |
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[46] | 280 | pop cx |
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[53] | 281 | pop dx |
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[41] | 282 | pop si |
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| 283 | pop bp |
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[592] | 284 | .Return: |
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[41] | 285 | ret |
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| 286 | |
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| 287 | ;-------------------------------------------------------------------- |
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| 288 | ; .FormatFileOrDirectoryToBufferFromDTAinDSSI |
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| 289 | ; Parameters: |
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| 290 | ; DS:SI: Ptr to DTA containing file information |
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| 291 | ; Returns: |
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| 292 | ; Nothing |
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| 293 | ; Corrupts registers: |
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| 294 | ; AX, BX, CX, DX, SI, DI, BP |
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| 295 | ;-------------------------------------------------------------------- |
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| 296 | ALIGN JUMP_ALIGN |
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| 297 | .FormatFileOrDirectoryToBufferFromDTAinDSSI: |
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| 298 | mov bp, sp |
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| 299 | lea ax, [si+DTA.szFile] |
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| 300 | |
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| 301 | test BYTE [si+DTA.bFileAttributes], FLG_FILEATTR_DIRECTORY |
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| 302 | jnz SHORT .FormatDirectory |
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[46] | 303 | ; Fall to .FormatFile |
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[41] | 304 | |
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[46] | 305 | ;-------------------------------------------------------------------- |
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| 306 | ; .FormatFile |
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| 307 | ; Parameters: |
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| 308 | ; BP: SP before pushing formatting parameters |
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| 309 | ; DS:AX: Far pointer to file name |
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| 310 | ; DS:SI: Ptr to DTA containing file information |
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| 311 | ; Returns: |
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| 312 | ; Nothing |
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| 313 | ; Corrupts registers: |
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[53] | 314 | ; AX, BX, CX, DX, SI, DI |
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[46] | 315 | ;-------------------------------------------------------------------- |
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| 316 | .FormatFile: |
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| 317 | xchg si, ax |
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[53] | 318 | call String_ConvertDSSItoLowerCase |
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[46] | 319 | xchg ax, si |
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[52] | 320 | |
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| 321 | ; Push parameters for file name |
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[53] | 322 | push ax ; Push file name offset |
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| 323 | push ds ; Push file name segment |
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[46] | 324 | |
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| 325 | ; Push parameters for file size |
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[41] | 326 | mov ax, [si+DTA.dwFileSize] |
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| 327 | mov dx, [si+DTA.dwFileSize+2] |
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| 328 | xor bx, bx |
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| 329 | xor cx, cx |
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| 330 | call Size_GetSizeToAXAndCharToDLfromBXDXAXwithMagnitudeInCX |
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| 331 | mov cl, 'i' |
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| 332 | cmp dl, ' ' |
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| 333 | eCMOVE cl, dl |
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| 334 | push ax |
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| 335 | push dx |
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| 336 | push cx |
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[46] | 337 | |
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| 338 | ; Format to buffer |
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[41] | 339 | mov si, g_szFileFormat |
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| 340 | jmp SHORT .FormatStringInCSSIandReturn |
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| 341 | |
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[46] | 342 | ;-------------------------------------------------------------------- |
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| 343 | ; .FormatDirectory |
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| 344 | ; Parameters: |
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| 345 | ; BP: SP before pushing formatting parameters |
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| 346 | ; DS:AX: Far pointer to directory name |
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| 347 | ; DS:SI: Ptr to DTA containing file information |
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| 348 | ; Returns: |
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| 349 | ; Nothing |
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| 350 | ; Corrupts registers: |
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[53] | 351 | ; AX, SI, DI |
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[46] | 352 | ;-------------------------------------------------------------------- |
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[41] | 353 | ALIGN JUMP_ALIGN |
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| 354 | .FormatDirectory: |
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[46] | 355 | push ax ; Push directory name offset |
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| 356 | push ds ; Push directory name segment |
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[41] | 357 | mov ax, g_szSub |
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| 358 | cmp WORD [si+DTA.szFile], UPDIR_CHARACTERS |
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| 359 | eCMOVE ax, g_szUp |
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| 360 | push ax |
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| 361 | mov si, g_szDirectoryFormat |
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| 362 | ALIGN JUMP_ALIGN |
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| 363 | .FormatStringInCSSIandReturn: |
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[505] | 364 | JMP_DISPLAY_LIBRARY FormatNullTerminatedStringFromCSSI |
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[41] | 365 | |
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| 366 | |
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| 367 | ;-------------------------------------------------------------------- |
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[46] | 368 | ; SortDirectoryContentsStringFromESDIwithCountInCX |
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| 369 | ; Parameters: |
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| 370 | ; CX: Number of files and directories |
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| 371 | ; ES:DI: Buffer containing directory contents string |
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| 372 | ; SS:BP: Ptr to DIALOG |
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| 373 | ; Returns: |
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[53] | 374 | ; ES:DI: Ptr to end of directory contents string |
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[46] | 375 | ; Corrupts registers: |
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[53] | 376 | ; AX, BX, CX, DX, SI, DS |
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[46] | 377 | ;-------------------------------------------------------------------- |
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| 378 | ALIGN JUMP_ALIGN |
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| 379 | SortDirectoryContentsStringFromESDIwithCountInCX: |
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[106] | 380 | call Registers_CopyESDItoDSSI |
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[46] | 381 | |
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[181] | 382 | ; Add directory contents string length to DI |
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[53] | 383 | mov ax, FILE_STRING_LENGTH |
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[181] | 384 | push ax |
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[53] | 385 | mul cx |
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| 386 | add di, ax |
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| 387 | |
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[181] | 388 | mov dx, cx |
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| 389 | pop cx |
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| 390 | mov bx, .FileStringComparator |
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| 391 | jmp Sort_ItemsFromDSSIwithCountInDXsizeInCXandComparatorInBX |
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| 392 | |
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[46] | 393 | ;-------------------------------------------------------------------- |
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| 394 | ; .FileStringComparator |
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| 395 | ; Parameters: |
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| 396 | ; CX: Item size in bytes |
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| 397 | ; DS:SI: Ptr to first item to compare |
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| 398 | ; ES:DI: Ptr to second item to compare |
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| 399 | ; Returns: |
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[181] | 400 | ; FLAGS: Signed comparison between first and second item |
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[46] | 401 | ; Corrupts registers: |
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| 402 | ; Nothing |
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| 403 | ;-------------------------------------------------------------------- |
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| 404 | ALIGN JUMP_ALIGN |
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| 405 | .FileStringComparator: |
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| 406 | push di |
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| 407 | push si |
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| 408 | push cx |
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| 409 | push bx |
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| 410 | |
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| 411 | mov bx, FILE_STRING_LENGTH-2 ; Zero BH |
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| 412 | cmp WORD [si], UPDIR_CHARACTERS |
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| 413 | je SHORT .ForceValueFromDSSItoBeLess |
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| 414 | mov bl, [si+bx] |
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| 415 | cmp bl, [es:di+FILE_STRING_LENGTH-2] ; 'B' for files, 'R' for directories |
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| 416 | jne SHORT .ForceValueFromDSSItoBeMoreOrLess |
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| 417 | repe cmpsb ; Two directories or two files |
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| 418 | |
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| 419 | ALIGN JUMP_ALIGN |
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| 420 | .ReturnFromComparison: |
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| 421 | pop bx |
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| 422 | pop cx |
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| 423 | pop si |
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| 424 | pop di |
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| 425 | ret |
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| 426 | ALIGN JUMP_ALIGN |
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| 427 | .ForceValueFromDSSItoBeMoreOrLess: |
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| 428 | ja SHORT .ForceValueFromDSSItoBeLess ; Directory in SI, file in DI |
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| 429 | xchg bl, bh |
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| 430 | ; Fall to ForceValueFromDSSItoBeLess |
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| 431 | ALIGN JUMP_ALIGN |
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| 432 | .ForceValueFromDSSItoBeLess: |
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| 433 | cmp bh, bl |
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| 434 | jmp SHORT .ReturnFromComparison |
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| 435 | |
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| 436 | |
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| 437 | ;-------------------------------------------------------------------- |
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[54] | 438 | ; RemoveLastLFandTerminateESDIwithNull |
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| 439 | ; Parameters: |
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| 440 | ; ES:DI: Ptr to end of buffer to terminate |
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| 441 | ; Returns: |
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| 442 | ; Nothing |
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| 443 | ; Corrupts registers: |
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| 444 | ; AX |
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| 445 | ;-------------------------------------------------------------------- |
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| 446 | ALIGN JUMP_ALIGN |
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| 447 | RemoveLastLFandTerminateESDIwithNull: |
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| 448 | dec di |
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| 449 | xor ax, ax |
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| 450 | stosb |
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| 451 | ret |
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| 452 | |
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| 453 | |
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| 454 | ;-------------------------------------------------------------------- |
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[41] | 455 | ; GetInfoLinesToCXandDialogFlagsToAX |
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| 456 | ; Parameters: |
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| 457 | ; SS:BP: Ptr to DIALOG |
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| 458 | ; Returns: |
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| 459 | ; AX: Dialog flags |
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| 460 | ; CX: Number of info lines to be displayed |
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| 461 | ; Corrupts registers: |
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| 462 | ; SI, DS |
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| 463 | ;-------------------------------------------------------------------- |
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| 464 | ALIGN JUMP_ALIGN |
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| 465 | GetInfoLinesToCXandDialogFlagsToAX: |
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[592] | 466 | ePUSH_T ax, Bit_GetSetCountToCXfromAX |
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| 467 | xor ah, ah |
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| 468 | ; Fall to GetDialogFlagsToAL |
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[41] | 469 | |
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| 470 | ;-------------------------------------------------------------------- |
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| 471 | ; GetDialogFlagsToAL |
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| 472 | ; Parameters: |
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| 473 | ; SS:BP: Ptr to DIALOG |
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| 474 | ; Returns: |
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| 475 | ; AL: Dialog flags |
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| 476 | ; Corrupts registers: |
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| 477 | ; SI, DS |
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| 478 | ;-------------------------------------------------------------------- |
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| 479 | ALIGN JUMP_ALIGN |
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| 480 | GetDialogFlagsToAL: |
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| 481 | lds si, [bp+DIALOG.fpDialogIO] |
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| 482 | mov al, [si+FILE_DIALOG_IO.bDialogFlags] |
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| 483 | ret |
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| 484 | |
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| 485 | |
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| 486 | ;-------------------------------------------------------------------- |
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| 487 | ; ParseSelectionFromItemLineInDSSI |
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| 488 | ; Parameters: |
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| 489 | ; DS:SI: Ptr to char buffer containing file or directory to be selected |
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| 490 | ; SS:BP: Ptr to DIALOG |
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| 491 | ; Returns: |
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| 492 | ; Nothing |
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| 493 | ; Corrupts registers: |
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| 494 | ; All, except BP |
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| 495 | ;-------------------------------------------------------------------- |
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| 496 | ALIGN JUMP_ALIGN |
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| 497 | ParseSelectionFromItemLineInDSSI: |
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[46] | 498 | mov ax, [si] |
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| 499 | cmp ax, UPDIR_CHARACTERS |
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| 500 | je SHORT .ChangeToUpdir |
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| 501 | call Char_IsUpperCaseLetterInAL |
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| 502 | jc SHORT .ParseAndChangeToSubdirInDSSI |
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[141] | 503 | call Char_IsDecimalDigitInAL |
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| 504 | jc SHORT .ParseAndChangeToSubdirInDSSI ; Assume subdir and check for errors |
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[46] | 505 | ; Fall to .ParseAndSelectFileFromDSSI |
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[41] | 506 | |
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| 507 | ;-------------------------------------------------------------------- |
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[46] | 508 | ; .ParseAndSelectFileFromDSSI |
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[41] | 509 | ; Parameters: |
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[46] | 510 | ; DS:SI: NULL terminated string selected from dialog |
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[41] | 511 | ; SS:BP: Ptr to DIALOG |
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| 512 | ; Returns: |
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| 513 | ; Nothing (exits dialog) |
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| 514 | ; Corrupts registers: |
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| 515 | ; All, except BP |
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| 516 | ;-------------------------------------------------------------------- |
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[46] | 517 | .ParseAndSelectFileFromDSSI: |
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[41] | 518 | les di, [bp+DIALOG.fpDialogIO] |
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| 519 | add di, BYTE FILE_DIALOG_IO.szFile |
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| 520 | mov cx, FILENAME_BUFFER_SIZE-1 |
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[50] | 521 | call Memory_CopyCXbytesFromDSSItoESDI |
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[41] | 522 | xor ax, ax |
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| 523 | stosb ; Terminate with NULL |
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[293] | 524 | jmp SHORT CloseFileDialogAfterSuccessfulSelection |
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[41] | 525 | |
---|
| 526 | ;-------------------------------------------------------------------- |
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[46] | 527 | ; .ChangeToUpdir |
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[41] | 528 | ; Parameters: |
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| 529 | ; SS:BP: Ptr to DIALOG |
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| 530 | ; Returns: |
---|
| 531 | ; Nothing |
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| 532 | ; Corrupts registers: |
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| 533 | ; All, except BP |
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| 534 | ;-------------------------------------------------------------------- |
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| 535 | ALIGN JUMP_ALIGN |
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[46] | 536 | .ChangeToUpdir: |
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[51] | 537 | push cs |
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| 538 | pop ds |
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[46] | 539 | mov si, g_szUpdir |
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| 540 | jmp SHORT .ChangeDirectoryToDSSI |
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| 541 | |
---|
| 542 | ;-------------------------------------------------------------------- |
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| 543 | ; .ParseAndChangeToSubdirInDSSI |
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| 544 | ; Parameters: |
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| 545 | ; DS:SI: NULL terminated string selected from dialog |
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| 546 | ; SS:BP: Ptr to DIALOG |
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| 547 | ; Returns: |
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| 548 | ; Nothing |
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| 549 | ; Corrupts registers: |
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| 550 | ; All, except BP |
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| 551 | ;-------------------------------------------------------------------- |
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| 552 | ALIGN JUMP_ALIGN |
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| 553 | .ParseAndChangeToSubdirInDSSI: |
---|
| 554 | mov BYTE [si+12], NULL ; Terminate with NULL (unnecessary spaces do not matter) |
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| 555 | .ChangeDirectoryToDSSI: |
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[41] | 556 | call Directory_ChangeToPathFromDSSI |
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[141] | 557 | jc SHORT .ParseAndSelectFileFromDSSI ; Must have been a file starting with number |
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[41] | 558 | ; Fall to RefreshFilesToDisplay |
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| 559 | |
---|
| 560 | ;-------------------------------------------------------------------- |
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| 561 | ; RefreshFilesToDisplay |
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| 562 | ; Parameters: |
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| 563 | ; SS:BP: Ptr to DIALOG |
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| 564 | ; Returns: |
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| 565 | ; Nothing |
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| 566 | ; Corrupts registers: |
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| 567 | ; All, except BP |
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| 568 | ;-------------------------------------------------------------------- |
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| 569 | ALIGN JUMP_ALIGN |
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| 570 | RefreshFilesToDisplay: |
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[54] | 571 | call ReInitializeMenuinitFromSSBP |
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[41] | 572 | jmp MenuInit_RefreshMenuWindow |
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| 573 | |
---|
| 574 | |
---|
| 575 | ;-------------------------------------------------------------------- |
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| 576 | ; HandleFunctionKeyFromAH |
---|
| 577 | ; Parameters: |
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| 578 | ; AH: Scancode for function key |
---|
| 579 | ; SS:BP: Ptr to DIALOG |
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| 580 | ; Returns: |
---|
| 581 | ; Nothing |
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| 582 | ; Corrupts registers: |
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| 583 | ; AX, SI, DI, BP |
---|
| 584 | ;-------------------------------------------------------------------- |
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| 585 | ALIGN JUMP_ALIGN |
---|
| 586 | HandleFunctionKeyFromAH: |
---|
| 587 | call GetDialogFlagsToAL |
---|
| 588 | cmp ah, KEY_FILEDIALOG_NEW_FILE_OR_DIR |
---|
| 589 | je SHORT HandleFunctionKeyForCreatingNewFileOrDirectory |
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| 590 | cmp ah, KEY_FILEDIALOG_SELECT_DIRECTORY |
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| 591 | je SHORT HandleFunctionKeyForSelectingDirectoryInsteadOfFile |
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| 592 | cmp ah, KEY_FILEDIALOG_CHANGE_DRIVE |
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| 593 | je SHORT HandleFunctionKeyForDriveChange |
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| 594 | ReturnWithoutHandlingKeystroke: |
---|
| 595 | clc ; Event not processed |
---|
| 596 | ret |
---|
| 597 | |
---|
| 598 | |
---|
| 599 | ;-------------------------------------------------------------------- |
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| 600 | ; HandleFunctionKeyForCreatingNewFileOrDirectory |
---|
| 601 | ; Parameters: |
---|
| 602 | ; AL: File dialog flags |
---|
| 603 | ; SS:BP: Ptr to DIALOG |
---|
| 604 | ; Returns: |
---|
| 605 | ; Closes file dialog |
---|
| 606 | ; Corrupts registers: |
---|
| 607 | ; All, except BP |
---|
| 608 | ;-------------------------------------------------------------------- |
---|
| 609 | ALIGN JUMP_ALIGN |
---|
| 610 | HandleFunctionKeyForCreatingNewFileOrDirectory: |
---|
| 611 | test al, FLG_FILEDIALOG_NEW |
---|
| 612 | jz SHORT ReturnWithoutHandlingKeystroke |
---|
| 613 | |
---|
[602] | 614 | mov cl, STRING_DIALOG_IO_size |
---|
| 615 | call Memory_ReserveCLbytesFromStackToDSSI |
---|
[41] | 616 | |
---|
[568] | 617 | ;;; InitializeStringDialogIoInDSSIforInputtingFileName |
---|
[41] | 618 | call InitializeNullStringsToDialogInputInDSSI |
---|
| 619 | mov WORD [si+DIALOG_INPUT.fszTitle], g_szEnterNewFileOrDirectory |
---|
| 620 | mov WORD [si+STRING_DIALOG_IO.fnCharFilter], NULL |
---|
| 621 | mov WORD [si+STRING_DIALOG_IO.wBufferSize], FILENAME_BUFFER_SIZE |
---|
| 622 | les ax, [bp+DIALOG.fpDialogIO] |
---|
| 623 | add ax, BYTE FILE_DIALOG_IO.szFile |
---|
| 624 | mov [si+STRING_DIALOG_IO.fpReturnBuffer], ax |
---|
| 625 | mov [si+STRING_DIALOG_IO.fpReturnBuffer+2], es |
---|
[568] | 626 | ;;; |
---|
[41] | 627 | |
---|
[568] | 628 | CALL_MENU_LIBRARY GetStringWithIoInDSSI |
---|
| 629 | mov al, [si+STRING_DIALOG_IO.bUserCancellation] |
---|
| 630 | add sp, BYTE STRING_DIALOG_IO_size |
---|
| 631 | test al, al ; User cancellation? |
---|
| 632 | jnz SHORT ReturnWithoutHandlingKeystroke |
---|
| 633 | jmp CloseFileDialogAfterSuccessfulSelection |
---|
[41] | 634 | |
---|
[568] | 635 | |
---|
[41] | 636 | ;-------------------------------------------------------------------- |
---|
| 637 | ; HandleFunctionKeyForSelectingDirectoryInsteadOfFile |
---|
| 638 | ; Parameters: |
---|
| 639 | ; AL: File dialog flags |
---|
| 640 | ; SS:BP: Ptr to DIALOG |
---|
| 641 | ; Returns: |
---|
| 642 | ; Closes file dialog |
---|
| 643 | ; Corrupts registers: |
---|
| 644 | ; All, except BP |
---|
| 645 | ;-------------------------------------------------------------------- |
---|
| 646 | ALIGN JUMP_ALIGN |
---|
| 647 | HandleFunctionKeyForSelectingDirectoryInsteadOfFile: |
---|
| 648 | test al, FLG_FILEDIALOG_DIRECTORY |
---|
| 649 | jz SHORT ReturnWithoutHandlingKeystroke |
---|
[293] | 650 | ; Fall to CloseFileDialogAfterSuccessfulSelection |
---|
[41] | 651 | |
---|
| 652 | ;-------------------------------------------------------------------- |
---|
[293] | 653 | ; CloseFileDialogAfterSuccessfulSelection |
---|
[41] | 654 | ; Parameters: |
---|
| 655 | ; SS:BP: Ptr to DIALOG |
---|
| 656 | ; Returns: |
---|
| 657 | ; Nothing (exits dialog) |
---|
| 658 | ; Corrupts registers: |
---|
| 659 | ; All, except BP |
---|
| 660 | ;-------------------------------------------------------------------- |
---|
| 661 | ALIGN JUMP_ALIGN |
---|
[293] | 662 | CloseFileDialogAfterSuccessfulSelection: |
---|
[41] | 663 | lds di, [bp+DIALOG.fpDialogIO] |
---|
| 664 | mov BYTE [di+FILE_DIALOG_IO.bUserCancellation], FALSE |
---|
| 665 | jmp MenuInit_CloseMenuWindow |
---|
| 666 | |
---|
| 667 | |
---|
| 668 | ;-------------------------------------------------------------------- |
---|
| 669 | ; HandleFunctionKeyForDriveChange |
---|
| 670 | ; Parameters: |
---|
| 671 | ; AL: File dialog flags |
---|
| 672 | ; SS:BP: Ptr to DIALOG |
---|
| 673 | ; Returns: |
---|
| 674 | ; Nothing |
---|
| 675 | ; Corrupts registers: |
---|
| 676 | ; All, except BP |
---|
| 677 | ;-------------------------------------------------------------------- |
---|
| 678 | ALIGN JUMP_ALIGN |
---|
| 679 | HandleFunctionKeyForDriveChange: |
---|
| 680 | test al, FLG_FILEDIALOG_DRIVES |
---|
| 681 | jz SHORT ReturnWithoutHandlingKeystroke |
---|
| 682 | |
---|
[54] | 683 | call DisplayLoadingMessageInInformationArea |
---|
[602] | 684 | mov cl, DRIVE_DIALOG_IO_size |
---|
| 685 | call Memory_ReserveCLbytesFromStackToDSSI |
---|
[54] | 686 | call .DisplayDriveSelectionDialogWithIoInDSSI |
---|
| 687 | call .ChangeDriveToUserSelectionFromIoInDSSI |
---|
| 688 | add sp, BYTE DRIVE_DIALOG_IO_size |
---|
[592] | 689 | .UserCancelledDriveChange: |
---|
[54] | 690 | ret |
---|
[41] | 691 | |
---|
| 692 | ;-------------------------------------------------------------------- |
---|
[54] | 693 | ; .DisplayDriveSelectionDialogWithIoInDSSI |
---|
[41] | 694 | ; Parameters: |
---|
[54] | 695 | ; DS:SI: Ptr to uninitialized DRIVE_DIALOG_IO |
---|
[41] | 696 | ; SS:BP: Ptr to DIALOG |
---|
| 697 | ; Returns: |
---|
[54] | 698 | ; DS:SI: Ptr to DRIVE_DIALOG_IO |
---|
[41] | 699 | ; Corrupts registers: |
---|
[54] | 700 | ; AX, DI |
---|
[41] | 701 | ;-------------------------------------------------------------------- |
---|
| 702 | ALIGN JUMP_ALIGN |
---|
[54] | 703 | .DisplayDriveSelectionDialogWithIoInDSSI: |
---|
[41] | 704 | call InitializeNullStringsToDialogInputInDSSI |
---|
| 705 | mov WORD [si+DIALOG_INPUT.fszTitle], g_szSelectNewDrive |
---|
[525] | 706 | JMP_MENU_LIBRARY GetDriveWithIoInDSSI |
---|
[41] | 707 | |
---|
| 708 | ;-------------------------------------------------------------------- |
---|
[54] | 709 | ; .ChangeDriveToUserSelectionFromIoInDSSI |
---|
[41] | 710 | ; Parameters: |
---|
[54] | 711 | ; DS:SI: Ptr to DRIVE_DIALOG_IO |
---|
[41] | 712 | ; SS:BP: Ptr to DIALOG |
---|
| 713 | ; Returns: |
---|
| 714 | ; Nothing |
---|
| 715 | ; Corrupts registers: |
---|
[54] | 716 | ; All, except BP |
---|
[41] | 717 | ;-------------------------------------------------------------------- |
---|
| 718 | ALIGN JUMP_ALIGN |
---|
[54] | 719 | .ChangeDriveToUserSelectionFromIoInDSSI: |
---|
| 720 | cmp BYTE [si+DRIVE_DIALOG_IO.bUserCancellation], FALSE |
---|
| 721 | jne SHORT .UserCancelledDriveChange |
---|
[41] | 722 | |
---|
[592] | 723 | ; Install our Custom Critical Error Handler to catch "Drive Not Ready" errors. This handler only works on DOS 3.0+ systems |
---|
| 724 | ; but that should be OK because only DOS 3.1+ will trigger it. Under older DOS versions drives are enumerated using |
---|
| 725 | ; GET_DOS_DRIVE_PARAMETER_BLOCK_FOR_SPECIFIC_DRIVE which will access the drive so we know it is available at this point. |
---|
| 726 | mov dx, DosCritical_CustomHandler |
---|
| 727 | call DosCritical_InstallNewHandlerFromCSDX |
---|
| 728 | |
---|
| 729 | ; Save the current drive on stack in case the selected drive is not ready and the user decides to cancel the change. |
---|
| 730 | call Drive_GetDefaultToAL |
---|
| 731 | xchg dx, ax |
---|
| 732 | |
---|
| 733 | .RetryDrive: |
---|
| 734 | push dx ; Save the previous current drive to stack |
---|
| 735 | |
---|
[54] | 736 | mov dl, [si+DRIVE_DIALOG_IO.bReturnDriveNumber] |
---|
| 737 | call Drive_SetDefaultFromDL |
---|
[592] | 738 | |
---|
| 739 | ; Now we must try to force a media access to catch "Drive Not Ready". |
---|
| 740 | push ds |
---|
| 741 | push ss |
---|
| 742 | pop ds |
---|
[602] | 743 | ePUSH_T ax, CURRENTDIR_CHARACTERS ; The high byte is zero |
---|
[592] | 744 | mov cx, FLG_FILEATTR_DIRECTORY |
---|
| 745 | mov dx, sp |
---|
| 746 | mov ax, FIND_FIRST_MATCHING_FILE<<8 |
---|
| 747 | int DOS_INTERRUPT_21h |
---|
[601] | 748 | ; Returns ERR_DOS_NO_MORE_FILES only when the root directory is the current directory (at least under Windows XP). |
---|
| 749 | cmp al, ERR_DOS_PATH_NOT_FOUND |
---|
[592] | 750 | pop ax |
---|
| 751 | pop ds |
---|
| 752 | |
---|
| 753 | pop dx ; Restore the previous current drive from stack |
---|
| 754 | |
---|
| 755 | xchg ah, [cs:bLastCriticalError] ; Zero bLastCriticalError and fetch error code to AH |
---|
[601] | 756 | je SHORT .DriveIsNotReady ; A removable drive with no media (or possibly a drive that has not been formatted?) |
---|
[592] | 757 | cmp ah, ERR_DOS_DRIVE_NOT_READY |
---|
| 758 | jne SHORT .DriveIsReady |
---|
[601] | 759 | .DriveIsNotReady: |
---|
[592] | 760 | mov bx, g_szDlgDriveNotReady |
---|
| 761 | call Dialogs_DisplayYesNoResponseDialogWithTitleStringInBX |
---|
| 762 | jz SHORT .RetryDrive |
---|
| 763 | ; The user cancelled the drive change. Restore current drive to what it was previously. |
---|
| 764 | call Drive_SetDefaultFromDL |
---|
| 765 | jmp DosCritical_RestoreDosHandler |
---|
| 766 | |
---|
| 767 | .DriveIsReady: |
---|
| 768 | call DosCritical_RestoreDosHandler |
---|
[54] | 769 | jmp RefreshFilesToDisplay |
---|
[41] | 770 | |
---|
| 771 | |
---|
| 772 | ;-------------------------------------------------------------------- |
---|
[54] | 773 | ; DisplayLoadingMessageInInformationArea |
---|
[53] | 774 | ; Parameters: |
---|
[54] | 775 | ; SS:BP: Ptr to DIALOG |
---|
[53] | 776 | ; Returns: |
---|
| 777 | ; Nothing |
---|
| 778 | ; Corrupts registers: |
---|
[54] | 779 | ; AX, BX, CX, DX, SI, DI |
---|
[53] | 780 | ;-------------------------------------------------------------------- |
---|
| 781 | ALIGN JUMP_ALIGN |
---|
[54] | 782 | DisplayLoadingMessageInInformationArea: |
---|
| 783 | call MenuText_ClearInformationArea |
---|
| 784 | call MenuText_PrepareToDrawInformationArea |
---|
| 785 | mov si, g_szLoadingPleaseWait |
---|
[505] | 786 | JMP_DISPLAY_LIBRARY PrintNullTerminatedStringFromCSSI |
---|
[53] | 787 | |
---|
| 788 | |
---|
| 789 | ;-------------------------------------------------------------------- |
---|
[41] | 790 | ; InitializeNullStringsToDialogInputInDSSI |
---|
| 791 | ; Parameters: |
---|
| 792 | ; DS:SI: Ptr to DIALOG_INPUT |
---|
| 793 | ; SS:BP: Ptr to DIALOG |
---|
| 794 | ; Returns: |
---|
| 795 | ; Nothing |
---|
| 796 | ; Corrupts registers: |
---|
| 797 | ; AX |
---|
| 798 | ;-------------------------------------------------------------------- |
---|
| 799 | ALIGN JUMP_ALIGN |
---|
| 800 | InitializeNullStringsToDialogInputInDSSI: |
---|
| 801 | mov ax, g_szNull |
---|
| 802 | mov [si+DIALOG_INPUT.fszTitle], ax |
---|
| 803 | mov [si+DIALOG_INPUT.fszTitle+2], cs |
---|
| 804 | mov [si+DIALOG_INPUT.fszItems], ax |
---|
| 805 | mov [si+DIALOG_INPUT.fszItems+2], cs |
---|
| 806 | mov [si+DIALOG_INPUT.fszInfo], ax |
---|
| 807 | mov [si+DIALOG_INPUT.fszInfo+2], cs |
---|
| 808 | ret |
---|