[Code]
const
Archives = '{src}\*.arc'; // укажите расположение архивов FreeArc; для внешних файлов строку в [Files] добавлять необязательно
PM_REMOVE = 1;
CP_ACP = 0; CP_UTF8 = 65001;
oneMb = 1048576;
type
#ifdef UNICODE ; если у вас ошибка на этой строке, то установите препроцессор или исправьте скрипт для вашей версии Inno Setup
#define A "W"
#else
#define A "A" ; точка входа в SetWindowText, {#A} меняется на A или W в зависимости от версии
PAnsiChar = PChar; // Required for Inno Setup 5.3.0 and higher. (требуется для Inno Setup версии 5.3.0 и ниже)
#endif
#if Ver < 84018176
AnsiString = String; // There is no need for this line in Inno Setup 5.2.4 and above (для Inno Setup версий 5.2.4 и выше эта строка не нужна)
#endif
TMyMsg = record
hwnd: HWND;
message: UINT;
wParam: Longint;
lParam: Longint;
time: DWORD;
pt: TPoint;
end;
TFreeArcCallback = function (what: PAnsiChar; int1, int2: Integer; str: PAnsiChar): Integer;
TArc = record Path: string; OrigSize: Integer; Size: Extended; end;
var
ExtractFile: TLabel;
lblExtractFileName: TLabel;
btnCancelUnpacking: TButton;
CancelCode, n, UnPackError, StartInstall: Integer;
Arcs: array of TArc;
msgError: string;
lastMb: Integer;
baseMb: Integer;
totalUncompressedSize: Integer; // total uncompressed size of archive data in mb
LastTimerEvent: DWORD;
Function MultiByteToWideChar(CodePage: UINT; dwFlags: DWORD; lpMultiByteStr: string; cbMultiByte: integer; lpWideCharStr: string; cchWideChar: integer): longint; external '
[email protected] stdcall';
Function WideCharToMultiByte(CodePage: UINT; dwFlags: DWORD; lpWideCharStr: string; cchWideChar: integer; lpMultiByteStr: string; cbMultiByte: integer; lpDefaultChar: integer; lpUsedDefaultChar: integer): longint; external '
[email protected] stdcall';
function PeekMessage(var lpMsg: TMyMsg; hWnd: HWND; wMsgFilterMin, wMsgFilterMax, wRemoveMsg: UINT): BOOL; external '
[email protected] stdcall';
function TranslateMessage(const lpMsg: TMyMsg): BOOL; external '
[email protected] stdcall';
function DispatchMessage(const lpMsg: TMyMsg): Longint; external '
[email protected] stdcall';
Function OemToChar(lpszSrc, lpszDst: AnsiString): longint; external '
[email protected] stdcall';
function GetWindowLong(hWnd, nIndex: Integer): Longint; external 'GetWindowLongA@user32 stdcall delayload';
function SetWindowText(hWnd: Longint; lpString: String): Longint; external 'SetWindowText{#A}@user32 stdcall delayload';
function GetTickCount: DWord; external 'GetTickCount@kernel32';
function WrapFreeArcCallback (callback: TFreeArcCallback; paramcount: integer):longword; external 'wrapcallback@files:innocallback.dll stdcall';
function FreeArcExtract (callback: longword; cmd1,cmd2,cmd3,cmd4,cmd5,cmd6,cmd7,cmd8,cmd9,cmd10: PAnsiChar): integer; external 'FreeArcExtract@files:unarc.dll cdecl';
procedure AppProcessMessage;
var
Msg: TMyMsg;
begin
while PeekMessage(Msg, 0, 0, 0, PM_REMOVE) do begin
TranslateMessage(Msg);
DispatchMessage(Msg);
end;
end;
// Перевод числа в строку с точностью 3 знака (%.3n) с округлением дробной части, если она есть
Function NumToStr(Float: Extended): String;
Begin
Result:= Format('%.3n', [Float]); StringChange(Result, ',', '.');
while ((Result[Length(Result)] = '0') or (Result[Length(Result)] = '.')) and (Length(Result) > 1) do
SetLength(Result, Length(Result)-1);
End;
function cm(Message: String): String; Begin Result:= ExpandConstant('{cm:'+ Message +'}') End;
Function Size64(Hi, Lo: Integer): Extended;
Begin
Result:= Lo;
if Lo<0 then Result:= Result + $7FFFFFFF + $7FFFFFFF + 2;
for Hi:= Hi-1 Downto 0 do
Result:= Result + $7FFFFFFF + $7FFFFFFF + 2;
End;
// Converts OEM encoded string into ANSI
// Преобразует OEM строку в ANSI кодировку
function OemToAnsiStr( strSource: AnsiString): AnsiString;
var
nRet : longint;
begin
SetLength( Result, Length( strSource ) );
nRet:= OemToChar( strSource, Result );
end;
// Converts ANSI encoded string into UTF-8
// Преобразует строку из ANSI в UTF-8 кодировку
function AnsiToUtf8( strSource: string ): string;
var
nRet : integer;
WideCharBuf: string;
MultiByteBuf: string;
begin
strSource:= strSource + chr(0);
SetLength( WideCharBuf, Length( strSource ) * 2 );
SetLength( MultiByteBuf, Length( strSource ) * 2 );
nRet:= MultiByteToWideChar( CP_ACP, 0, strSource, -1, WideCharBuf, Length(WideCharBuf) );
nRet:= WideCharToMultiByte( CP_UTF8, 0, WideCharBuf, -1, MultiByteBuf, Length(MultiByteBuf), 0, 0);
Result:= MultiByteBuf;
end;
// OnClick event function for btnCancel
procedure btnCancelUnpackingOnClick(Sender: TObject);
begin
if MsgBox( SetupMessage( msgExitSetupMessage ), mbInformation, MB_YESNO ) = IDYES then
CancelCode:= -127;
end;
var origsize: Integer;
// The callback function for getting info about FreeArc archive
function FreeArcInfoCallback (what: PAnsiChar; Mb, sizeArc: Integer; str: PAnsiChar): Integer;
begin
if string(what)='origsize' then origsize := Mb else
if string(what)='compsize' then else
if string(what)='total_files' then else
Result:= CancelCode;
end;
// Returns decompressed size of files in archive
function ArchiveOrigSize(arcname: string): Integer;
var
callback: longword;
Begin
callback:= WrapFreeArcCallback(@FreeArcInfoCallback,4); //FreeArcInfoCallback has 4 arguments
CancelCode:= 0;
AppProcessMessage;
try
// Pass the specified arguments to 'unarc.dll'
Result:= FreeArcExtract (callback, 'l', '--', AnsiToUtf8(arcname), '', '', '', '', '', '', '');
if CancelCode < 0 then Result:= CancelCode;
if Result >= 0 then Result:= origsize;
except
Result:= -63; // ArcFail
end;
end;
// Scans the specified folders for archives and add them to list
function FindArcs(dir: string): Extended;
var
FSR: TFindRec;
Begin
Result:= 0;
if FindFirst(ExpandConstant(dir), FSR) then begin
try
repeat
// Skip everything but the folders
if FSR.Attributes and FILE_ATTRIBUTE_DIRECTORY > 0 then CONTINUE;
n:= GetArrayLength(Arcs);
// Expand the folder list
SetArrayLength(Arcs, n +1);
Arcs[n].Path:= ExtractFilePath(ExpandConstant(dir)) + FSR.Name;
Arcs[n].Size:= Size64(FSR.SizeHigh, FSR.SizeLow);
Result:= Result + Arcs[n].Size;
Arcs[n].OrigSize := ArchiveOrigSize(Arcs[n].Path)
totalUncompressedSize := totalUncompressedSize + Arcs[n].OrigSize
until not FindNext(FSR);
finally
FindClose(FSR);
end;
end;
End;
// Sets the TaskBar title
Procedure SetTaskBarTitle(Title: String); var h: Integer;
Begin
h:= GetWindowLong(MainForm.Handle, -8); if h <> 0 then SetWindowText(h, Title);
End;
// Converts milliseconds to human-readable time
// Конвертирует милисекунды в человеко-читаемое изображение времени
Function TicksToTime(Ticks: DWord; h,m,s: String; detail: Boolean): String;
Begin
if detail {hh:mm:ss format} then
Result:= PADZ(IntToStr(Ticks/3600000), 2) +':'+ PADZ(IntToStr((Ticks/1000 - Ticks/1000/3600*3600)/60), 2) +':'+ PADZ(IntToStr(Ticks/1000 - Ticks/1000/60*60), 2)
else if Ticks/3600 >= 1000 {more than hour} then
Result:= IntToStr(Ticks/3600000) +h+' '+ PADZ(IntToStr((Ticks/1000 - Ticks/1000/3600*3600)/60), 2) +m
else if Ticks/60 >= 1000 {1..60 minutes} then
Result:= IntToStr(Ticks/60000) +m+' '+ PADZ(IntToStr(Ticks/1000 - Ticks/1000/60*60), 2) +s
else Result:= IntToStr(Ticks/1000) +s {less than one minute}
End;
// The main callback function for unpacking FreeArc archives
function FreeArcCallback (what: PAnsiChar; Mb, sizeArc: Integer; str: PAnsiChar): Integer;
var
percents, Remaining: Integer;
s: String;
begin
if GetTickCount - LastTimerEvent > 1000 then begin
// This code will be executed once each 1000 ms (этот код будет выполняться раз в 1000 миллисекунд)
// ....
// End of code executed by timer
LastTimerEvent := LastTimerEvent+1000;
end;
if string(what)='filename' then begin
// Update FileName label
lblExtractFileName.Caption:= FmtMessage( cm( 'Extracting' ), [OemToAnsiStr( str )] )
end else if (string(what)='write') and (totalUncompressedSize>0) and (Mb>lastMb) then begin
// Assign to Mb *total* amount of data extracted to the moment from all archives
lastMb := Mb;
Mb := baseMb+Mb;
// Update progress bar
WizardForm.ProgressGauge.Position:= Mb;
// Show how much megabytes/archives were processed up to the moment
percents:= (Mb*1000) div totalUncompressedSize;
s := FmtMessage(cm('ExtractedInfo'), [IntToStr(Mb), IntToStr(totalUncompressedSize)]);
if GetArrayLength(Arcs)>1 then
s := s + '. '+FmtMessage(cm('ArcInfo'), [IntToStr(n+1), IntToStr(GetArrayLength(Arcs))])
ExtractFile.Caption := s
// Calculate and show current percents
percents:= (Mb*1000) div totalUncompressedSize;
s:= FmtMessage(cm('AllProgress'), [Format('%.1n', [Abs(percents/10)])]);
if Mb > 0 then Remaining:= trunc((GetTickCount - StartInstall) * Abs((totalUncompressedSize - Mb)/Mb)) else Remaining:= 0;
if Remaining = 0 then SetTaskBarTitle(cm('ending')) else begin
s:= s + '. '+FmtMessage(cm('remains'), [TicksToTime(Remaining, cm('hour'), cm('min'), cm('sec'), false)])
SetTaskBarTitle(FmtMessage(cm('taskbar'), [IntToStr(percents/10), TicksToTime(Remaining, 'h', 'm', 's', false)]))
end;
WizardForm.FileNameLabel.Caption := s
end;
AppProcessMessage;
Result:= CancelCode;
end;
// Extracts all found archives
function UnPack(Archives: string): Integer;
var
totalCompressedSize: Extended;
callback: longword;
FreeMB, TotalMB: Cardinal;
begin
// Display 'Extracting FreeArc archive'
lblExtractFileName.Caption:= '';
lblExtractFileName.Show;
ExtractFile.caption:= cm('ArcTitle');
ExtractFile.Show;
// Show the 'Cancel unpacking' button and set it as default button
btnCancelUnpacking.Caption:= WizardForm.CancelButton.Caption;
btnCancelUnpacking.Show;
WizardForm.ActiveControl:= btnCancelUnpacking;
WizardForm.ProgressGauge.Position:= 0;
// Get the size of all archives
totalUncompressedSize := 0;
totalCompressedSize := FindArcs(Archives);
WizardForm.ProgressGauge.Max:= totalUncompressedSize;
// Other initializations
callback:= WrapFreeArcCallback(@FreeArcCallback,4); //FreeArcCallback has 4 arguments
StartInstall:= GetTickCount; {время начала распаковки}
LastTimerEvent:= GetTickCount;
baseMb:= 0
for n:= 0 to GetArrayLength(Arcs) -1 do
begin
lastMb := 0
CancelCode:= 0;
AppProcessMessage;
try
// Pass the specified arguments to 'unarc.dll'
Result:= FreeArcExtract (callback, 'x', '-o+', '-dp' + AnsiToUtf8( ExpandConstant('{app}') ), '--', AnsiToUtf8(Arcs[n].Path), '', '', '', '', '');
if CancelCode < 0 then Result:= CancelCode;
except
Result:= -63; // ArcFail
end;
baseMb:= baseMb+lastMb
// Error occured
if Result <> 0 then
begin
msgError:= FmtMessage(cm('ArcError'), [IntToStr(Result)]);
GetSpaceOnDisk(ExtractFileDrive(ExpandConstant('{app}')), True, FreeMB, TotalMB);
case Result of
-1: if FreeMB < 32 {Мб на диске} then msgError:= SetupMessage(msgDiskSpaceWarningTitle)
else msgError:= msgError + #13#10 + FmtMessage(cm('ArcBroken'), [ExtractFileName(Arcs[n].Path)]);
-127: msgError:= cm('ArcBreak'); //Cancel button
-63: msgError:= cm('ArcFail');
end;
// MsgBox(msgError, mbInformation, MB_OK); //сообщение показывается на странице завершения
Log(msgError);
Break; //прервать цикл распаковки
end;
end;
// Hide labels and button
WizardForm.FileNameLabel.Caption:= '';
lblExtractFileName.Hide;
ExtractFile.Hide;
btnCancelUnpacking.Hide;
end;
procedure CurStepChanged(CurStep: TSetupStep);
begin
if CurStep = ssPostInstall then
begin
UnPackError:= UnPack(Archives)
if UnPackError = 0 then
SetTaskBarTitle(SetupMessage(msgSetupAppTitle))
else
begin
// Error occured, uninstall it then
Exec(ExpandConstant('{uninstallexe}'), '/SILENT','', sw_Hide, ewWaitUntilTerminated, n); //откат установки из-за ошибки unarc.dll
SetTaskBarTitle(SetupMessage(msgErrorTitle))
WizardForm.Caption:= SetupMessage(msgErrorTitle) +' - '+ cm('ArcBreak')
end;
end;
end;
// стандартный способ отката (не нужна CurPageChanged), но архивы распаковываются до извлечения файлов инсталлятора
// if CurStep = ssInstall then
// if UnPack(Archives) <> 0 then Abort;
Procedure CurPageChanged(CurPageID: Integer);
Begin
if (CurPageID = wpFinished) and (UnPackError <> 0) then
begin // Extraction was unsuccessful (распаковщик вернул ошибку)
// Show error message
WizardForm.FinishedLabel.Font.Color:= $0000C0; // red (красный)
WizardForm.FinishedLabel.Height:= WizardForm.FinishedLabel.Height * 2;
WizardForm.FinishedLabel.Caption:= SetupMessage(msgSetupAborted) + #13#10#13#10 + msgError;
end;
End;
procedure InitializeWizard();
begin
with WizardForm.ProgressGauge do
begin
// Create a label to show current FileName being extracted
lblExtractFileName:= TLabel.Create(WizardForm);
lblExtractFileName.parent:=WizardForm.InstallingPage;
lblExtractFileName.autosize:=false;
lblExtractFileName.Width:= Width;
lblExtractFileName.top:=Top + ScaleY(35);
lblExtractFileName.Caption:= '';
lblExtractFileName.Hide;
// Create a label to show percentage
ExtractFile:= TLabel.Create(WizardForm);
ExtractFile.parent:=WizardForm.InstallingPage;
ExtractFile.autosize:=false;
ExtractFile.Width:= Width;
ExtractFile.top:=lblExtractFileName.Top + ScaleY(16);
ExtractFile.caption:= '';
ExtractFile.Hide;
end;
// Create a 'Cancel unpacking' button and hide it for now.
btnCancelUnpacking:=TButton.create(WizardForm);
btnCancelUnpacking.Parent:= WizardForm;
btnCancelUnpacking.SetBounds(WizardForm.CancelButton.Left, WizardForm.CancelButton.top, WizardForm.CancelButton.Width, WizardForm.CancelButton.Height);
btnCancelUnpacking.OnClick:= @btnCancelUnpackingOnClick;
btnCancelUnpacking.Hide;
end;
