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MRC_Helper.pas
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MRC_Helper.pas
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unit MRC_Helper;
interface
uses Classes, Windows, SysUtils, MultiMon, Math, ShellApi, ShlObj, Vcl.Graphics, Inifiles;
const
MAX_UNC_PATH = 32767;
//FsFindFirst* success return codes (INVALID_HANDLE_VALUE returns on error)
FIND_NO_MORE_FILES = 0;
FIND_OK = 1;
FIND_ROOT_DIRECTORY = 2;
FIND_SHARED_LINKS = 3; //.shared folder
IconSizeSmall = 0; //SHGFI_SMALLICON
IconSizeNormal = 1; //SHGFI_ICON
IconSizeLarge = 2; //SHGFI_LARGEICON
TrashPostfix = '.trash';
SharedPostfix = '.shared';
InvitesPostfix = '.invites';
TYPE_BYTES = 0;
TYPE_KYLOBYTES = 1;
TYPE_MEGABYTES = 2;
type
TRealPath = record
account: WideString;
path: WideString;
upDirItem: boolean; //path/../
trashDir: boolean; //item is inside trash bin dir
sharedDir: boolean; //item is inside shared links dir
invitesDir: boolean; //item is inside invites dir
end;
function Implode(S: TStringList; Delimiter: WideString): WideString;
function Explode(S: WideString; Delimiter: char): TStringList;
function ExtractRealPath(VirtualPath: WideString): TRealPath;
function inAccount(path: TRealPath; ignoreVirtual: boolean = true): boolean;
function SizeOfFile(const FileName: String): Int64;
function DateTimeToUnix(ConvDate: TDateTime): Integer;
function CheckFlag(Check: Byte; Flags: Integer): boolean; //Определяет, установлен ли указанный бит
function DateTimeToFileTime(FileTime: TDateTime): TFileTime;
procedure SetAllFileTime(const FileName: string; const FileTime: TFileTime);
procedure CenterWindow(WindowToStay, WindowToCenter: HWND);
function UrlEncode(URL: WideString): WideString;
function FindTCWindow: HWND;
function FindTCIniPath: WideString;
function GetTCIconsSize: Integer;
function GetTmpDir: WideString;
function GetTmpFileName(Prefix: WideString = ''): WideString;
function CopyExt(FromFilename, ToFilename: WideString): WideString;
function GetUNCFilePath(FilePath: WideString): WideString;
function GetWord(command: WideString; WordIndex: Integer = 0): WideString; //Возвращает указанное значащее слово из строки с учётом кавычек (парсинг команд)
function ExtractLinkFromUrl(URL: WideString): WideString; //При необходимости преобразует адрес публичной ссылки к нужному виду
function IsWriteable(const DirName: WideString; FileName: WideString = 'delete.me'; CleanFile: boolean = true): boolean;
function PosLast(Substring, S: WideString; Offset: Integer = 0): Integer;
function PathToUrl(path: WideString; RestrictEmptyUrl: boolean = true; DoUrlEncode: boolean = true): WideString;
function UrlToPath(URL: WideString): WideString;
function GetFolderIcon(const size: Integer = IconSizeSmall): Hicon;
function GetSystemIcon(const size: Integer = IconSizeSmall; ItemType: Integer = CSIDL_BITBUCKET): Hicon;
function CombineIcons(FrontIcon, BackIcon: Hicon): Hicon; //taken from http://www.swissdelphicenter.ch/en/showcode.php?id=1636
function LoadIcon(const FileName: WideString): Hicon;
function LoadPluginIcon(const path: WideString; identifier: WideString): Hicon;
function RetryAttemptsToString(Attempt: Integer): WideString;
procedure ProcessMessages;
function IncludeSlash(const Str: WideString): WideString;
function FormatSize(size: Int64; SizeType: Integer = TYPE_MEGABYTES): WideString; //Форматируем размер в удобочитаемый вид
//Procedure FileLog(S: WideString);
implementation
{
Procedure FileLog(S: WideString);
var
f: textfile;
begin
Assign(f, 'd:\WORK\CODE\CloudMailRu\log.txt');
Rewrite(f);
Write(f, S);
close(f);
end;}
function Implode(S: TStringList; Delimiter: WideString): WideString;
var
iCount: Integer;
begin
Result := '';
if (S.Count = 0) then exit;
for iCount := 0 to pred(S.Count) do Result := Result + S.Strings[iCount] + Delimiter;
System.Delete(Result, Length(Result), 1);
end;
function Explode(S: WideString; Delimiter: char): TStringList;
begin
Result := TStringList.Create;
Result.DelimitedText := S;
Result.Delimiter := Delimiter;
end;
function ExtractRealPath(VirtualPath: WideString): TRealPath;
var
List: TStringList;
begin
Result.account := '';
Result.path := '';
Result.upDirItem := false;
Result.trashDir := false;
Result.sharedDir := false;
Result.invitesDir := false;
if VirtualPath = '' then exit; //root
VirtualPath := Copy(VirtualPath, 2, Length(VirtualPath) - 1);
List := TStringList.Create;
ExtractStrings(['\'], [], PWideChar(VirtualPath), List);
if (List.Count > 0) and (List.Strings[List.Count - 1] = '..') then Result.upDirItem := true;
if List.Count = 1 then
begin
Result.account := List.Strings[0];
end else if (List.Count > 1) then
begin
Result.account := List.Strings[0];
List.Delete(0);
Result.path := Implode(List, '\');
end;
List.Destroy;
if ExtractFileExt(Result.account) = TrashPostfix then
begin
Result.trashDir := true;
Result.account := Copy(Result.account, 1, Length(Result.account) - Length(TrashPostfix));
end else if ExtractFileExt(Result.account) = SharedPostfix then
begin
Result.sharedDir := true;
Result.account := Copy(Result.account, 1, Length(Result.account) - Length(SharedPostfix));
end else if ExtractFileExt(Result.account) = InvitesPostfix then
begin
Result.invitesDir := true;
Result.account := Copy(Result.account, 1, Length(Result.account) - Length(InvitesPostfix));
end;
end;
//проверка, находится ли путь внутри аккаунта. ignoreVirtual - не считать виртуальные каталоги облачными
function inAccount(path: TRealPath; ignoreVirtual: boolean = true): boolean;
begin
Result := path.account <> '';
if Result and ignoreVirtual then Result := not(path.trashDir or path.sharedDir or path.invitesDir);
end;
function DateTimeToUnix(ConvDate: TDateTime): Integer;
const
UnixStartDate: TDateTime = 25569.0;
begin
Result := Round((ConvDate - UnixStartDate) * 86400);
end;
function CheckFlag(Check: Byte; Flags: LongInt): boolean; //Определяет, установлен ли указанный бит
begin
Result := (Flags and Check) <> 0;
end;
function SizeOfFile(const FileName: String): Int64;
var
fHandle: DWORD;
begin
fHandle := CreateFile(PChar(FileName), 0, 0, nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
if fHandle = INVALID_HANDLE_VALUE then Result := -1
else
try
Int64Rec(Result).Lo := GetFileSize(fHandle, @Int64Rec(Result).Hi);
finally
CloseHandle(fHandle);
end;
end;
function DateTimeToFileTime(FileTime: TDateTime): TFileTime;
var
LocalFileTime, Ft: TFileTime;
SystemTime: TSystemTime;
begin
Result.dwLowDateTime := 0;
Result.dwHighDateTime := 0;
DateTimeToSystemTime(FileTime, SystemTime);
SystemTimeToFileTime(SystemTime, LocalFileTime);
LocalFileTimeToFileTime(LocalFileTime, Ft);
Result := Ft;
end;
procedure SetAllFileTime(const FileName: string; const FileTime: TFileTime);
var
Handle: thandle;
begin
Handle := INVALID_HANDLE_VALUE;
try
Handle := CreateFileW(PWideChar(GetUNCFilePath(FileName)), FILE_WRITE_ATTRIBUTES, FILE_SHARE_READ or FILE_SHARE_WRITE, nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
if Handle = INVALID_HANDLE_VALUE then
begin
CloseHandle(Handle);
exit;
end;
SetFileTime(Handle, @FileTime, @FileTime, @FileTime);
finally
CloseHandle(Handle);
end;
end;
procedure CenterWindow(WindowToStay, WindowToCenter: HWND);
var
R1: TRect;
R2: TRect;
Monitor: HMonitor;
MonInfo: TMonitorInfo;
MonRect: TRect;
x: Integer;
Y: Integer;
begin
GetWindowRect(WindowToStay, R1);
GetWindowRect(WindowToCenter, R2);
Monitor := MonitorFromWindow(WindowToStay, MONITOR_DEFAULTTONEAREST);
MonInfo.cbSize := SizeOf(MonInfo);
GetMonitorInfo(Monitor, @MonInfo);
MonRect := MonInfo.rcWork;
with R1 do
begin
x := (Right - Left - R2.Right + R2.Left) div 2 + Left;
Y := (Bottom - Top - R2.Bottom + R2.Top) div 2 + Top;
end;
x := Max(MonRect.Left, Min(x, MonRect.Right - R2.Right + R2.Left));
Y := Max(MonRect.Top, Min(Y, MonRect.Bottom - R2.Bottom + R2.Top));
SetWindowPos(WindowToCenter, 0, x, Y, 0, 0, SWP_NOACTIVATE or SWP_NOOWNERZORDER or SWP_NOSIZE or SWP_NOZORDER);
end;
function UrlEncode(URL: WideString): WideString;
var
I: Integer;
UTF8: UTF8String;
begin
UTF8 := UTF8String(URL);
Result := '';
for I := 1 to Length(UTF8) do
if UTF8[I] in ['a' .. 'z', 'A' .. 'Z', '/', '_', '-', '.', '0' .. '9'] then Result := Result + WideString(UTF8[I])
else Result := Result + '%' + IntToHex(Ord(UTF8[I]), 2);
end;
function FindTCWindow: HWND;
begin
Result := FindWindow('TTOTAL_CMD', nil); {Хендл отдаётся корректно даже при нескольких запущенных тоталах}
end;
function FindTCIniPath: WideString;
begin
exit(GetEnvironmentVariable('COMMANDER_INI'));
end;
function GetTCIconsSize: Integer;
var
TC_INI: TIniFile;
ResolutionSpecific: boolean;
IconsSizeSectionName: WideString;
MonInfo: TMonitorInfo;
begin
Result := 16; //some default value
if FileExists(FindTCIniPath) then
begin
TC_INI := TIniFile.Create(FindTCIniPath);
{+}
try
{+.}
ResolutionSpecific := TC_INI.ReadBool('Configuration', 'ResolutionSpecific', true);
if ResolutionSpecific then
begin
MonInfo.cbSize := SizeOf(MonInfo);
GetMonitorInfo(MonitorFromWindow(FindTCWindow, MONITOR_DEFAULTTONEAREST), @MonInfo);
IconsSizeSectionName := Format('%dx%d', [MonInfo.rcMonitor.Right - MonInfo.rcMonitor.Left, MonInfo.rcMonitor.Bottom - MonInfo.rcMonitor.Top]) + ' (8x16)'; //normal font section
if not TC_INI.SectionExists(IconsSizeSectionName) then
begin
IconsSizeSectionName := Format('%dx%d', [MonInfo.rcMonitor.Right - MonInfo.rcMonitor.Left, MonInfo.rcMonitor.Bottom - MonInfo.rcMonitor.Top]) + ' (10x20)'; //large font section
if not TC_INI.SectionExists(IconsSizeSectionName) then IconsSizeSectionName := 'AllResolutions'; //fuck that shit
end;
end
else IconsSizeSectionName := 'AllResolutions';
Result := TC_INI.ReadInteger(IconsSizeSectionName, 'Iconsize32', Result);
{+}
finally
TC_INI.Free;
end;
{+.}
end;
end;
function GetTmpDir: WideString;
var
tempFolder: array [0 .. MAX_UNC_PATH] of WideChar;
begin
GetTempPathW(MAX_PATH, @tempFolder);
Result := IncludeTrailingBackslash(StrPas(tempFolder));
end;
function GetTmpFileName(Prefix: WideString = ''): WideString;
var
tempFile: array [0 .. MAX_UNC_PATH] of WideChar;
begin
GetTempFileNameW(PWideChar(GetTmpDir), PWideChar(Prefix), 0, tempFile);
Result := StrPas(tempFile);
end;
function CopyExt(FromFilename, ToFilename: WideString): WideString;
begin
Result := ChangeFileExt(ToFilename, ExtractFileExt(FromFilename));
end;
function GetUNCFilePath(FilePath: WideString): WideString;
begin
Result := ExpandUNCFileName(FilePath);
if not(Pos(WideString('\\'), Result) = 1) then Result := '\\?\' + FilePath;
end;
function GetWord(command: WideString; WordIndex: Integer = 0): WideString;
var
Exploded: TStringList;
begin
Result := '';
Exploded := Explode(command, ' ');
if Exploded.Count = 0 then exit;
if Exploded.Count <= WordIndex then exit;
Result := Exploded.Strings[WordIndex];
end;
function ExtractLinkFromUrl(URL: WideString): WideString; //При необходимости преобразует адрес публичной ссылки к нужному виду
const
pulicPrefix = 'https://cloud.mail.ru/public';
begin
Result := URL;
if Pos(WideString(pulicPrefix), URL) <> 0 then Result := Copy(URL, Length(pulicPrefix) + 1, Length(URL) - Length(pulicPrefix));
end;
function IsWriteable(const DirName: WideString; FileName: WideString = 'delete.me'; CleanFile: boolean = true): boolean;
var
NewName: WideString;
H: thandle;
begin
NewName := IncludeTrailingPathDelimiter(DirName) + FileName;
if CleanFile then
begin
H := CreateFile(PChar(NewName), GENERIC_READ or GENERIC_WRITE, 0, nil, CREATE_NEW, FILE_ATTRIBUTE_TEMPORARY or FILE_FLAG_DELETE_ON_CLOSE, 0);
end else begin //
H := CreateFile(PChar(NewName), GENERIC_READ or GENERIC_WRITE, 0, nil, OPEN_EXISTING or CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
end;
Result := H <> INVALID_HANDLE_VALUE;
if Result then CloseHandle(H);
end;
function PosLast(Substring, S: WideString; Offset: Integer = 0): Integer;
var
tmp: Integer;
begin
tmp := Offset;
Repeat
Result := tmp;
tmp := Pos(Substring, S, tmp + 1);
until tmp = 0;
end;
function PathToUrl(path: WideString; RestrictEmptyUrl: boolean = true; DoUrlEncode: boolean = true): WideString;
begin
Result := StringReplace(path, WideString('\'), WideString('/'), [rfReplaceAll, rfIgnoreCase]);
if DoUrlEncode then Result := UrlEncode(Result);
if (Result = '') and RestrictEmptyUrl then Result := '/';
end;
function UrlToPath(URL: WideString): WideString;
begin
Result := StringReplace(URL, WideString('/'), WideString('\'), [rfReplaceAll, rfIgnoreCase]);
end;
function GetFolderIcon(const size: Integer = IconSizeSmall): Hicon;
var
SFI: TSHFileInfo;
uFlags: uint;
begin
Result := INVALID_HANDLE_VALUE;
uFlags := SHGFI_ICON;
FillChar(SFI, SizeOf(SFI), 0);
case size of
IconSizeSmall: uFlags := SHGFI_ICON or SHGFI_SMALLICON;
IconSizeNormal: uFlags := SHGFI_ICON;
IconSizeLarge: uFlags := SHGFI_ICON or SHGFI_LARGEICON; //not working with SHGetFileInfo
end;
if SHGetFileInfo('booya', FILE_ATTRIBUTE_DIRECTORY, SFI, SizeOf(SFI), uFlags or SHGFI_USEFILEATTRIBUTES) <> 0 then Result := SFI.Hicon;
end;
function GetSystemIcon(const size: Integer = IconSizeSmall; ItemType: Integer = CSIDL_BITBUCKET): Hicon;
var
SFI: TSHFileInfo;
PIDL: PItemIDList;
uFlags: uint;
begin
Result := INVALID_HANDLE_VALUE;
uFlags := SHGFI_ICON;
case size of
IconSizeSmall: uFlags := SHGFI_ICON or SHGFI_SMALLICON;
IconSizeNormal: uFlags := SHGFI_ICON;
IconSizeLarge: uFlags := SHGFI_ICON or SHGFI_LARGEICON; //not working with SHGetFileInfo
end;
SHGetSpecialFolderLocation(FindTCWindow, ItemType, PIDL);
if SHGetFileInfo(PChar(PIDL), 0, SFI, SizeOf(SFI), SHGFI_PIDL or SHGFI_SYSICONINDEX or uFlags) <> 0 then Result := SFI.Hicon;
end;
function CombineIcons(FrontIcon, BackIcon: Hicon): Hicon;
var
WinDC: HDC;
FrontInfo: TIconInfo;
FrontDC: HDC;
FrontSv: HBITMAP;
BackInfo: TIconInfo;
BackDC: HDC;
BackSv: HBITMAP;
BmpObj: tagBitmap;
begin
WinDC := GetDC(0);
GetIconInfo(FrontIcon, FrontInfo);
FrontDC := CreateCompatibleDC(WinDC);
FrontSv := SelectObject(FrontDC, FrontInfo.hbmMask);
GetIconInfo(BackIcon, BackInfo);
BackDC := CreateCompatibleDC(WinDC);
BackSv := SelectObject(BackDC, BackInfo.hbmMask);
GetObject(FrontInfo.hbmMask, SizeOf(BmpObj), @BmpObj);
BitBlt(BackDC, 0, 0, BmpObj.bmWidth, BmpObj.bmHeight, FrontDC, 0, 0, SRCAND);
SelectObject(BackDC, BackInfo.hbmColor);
DrawIconEx(BackDC, 0, 0, FrontIcon, 0, 0, 0, 0, DI_NORMAL);
Result := CreateIconIndirect(BackInfo);
SelectObject(FrontDC, FrontSv);
DeleteDC(FrontDC);
SelectObject(BackDC, BackSv);
DeleteDC(BackDC);
ReleaseDC(0, WinDC);
DeleteObject(FrontInfo.hbmColor);
DeleteObject(FrontInfo.hbmMask);
DeleteObject(BackInfo.hbmColor);
DeleteObject(BackInfo.hbmMask);
end;
function LoadIcon(const FileName: WideString): Hicon;
var
Icon: TIcon;
begin
Icon := nil;
LoadIcon := INVALID_HANDLE_VALUE;
if not FileExists(FileName) then exit;
try
Icon := TIcon.Create;
Icon.LoadFromFile(FileName);
Result := CopyIcon(Icon.Handle);
finally
Icon.Free;
end;
end;
function LoadPluginIcon(const path: WideString; identifier: WideString): Hicon;
begin
exit(LoadIcon(IncludeTrailingBackslash(path) + identifier + '.ico'));
end;
function RetryAttemptsToString(Attempt: Integer): WideString;
begin
if Attempt < 0 then exit('')
else exit(' of ' + Attempt.ToString);
end;
procedure ProcessMessages;
var
Msg: TMsg;
begin
while true do
begin
if not PeekMessage(Msg, 0, 0, 0, PM_REMOVE) then Break;
if Msg.Message <> $0012 then
begin
TranslateMessage(Msg);
DispatchMessage(Msg);
end;
end;
end;
function IncludeSlash(const Str: WideString): WideString;
begin
Result := Str;
if not(Result[High(Result)] = '/') then Result := Result + '/';
end;
function FormatSize(size: Int64; SizeType: Integer = TYPE_MEGABYTES): WideString; //Форматируем размер в удобочитаемый вид
const
postfixes: array [0 .. 6] of string = ('b', 'kb', 'Mb', 'Gb', 'Tb', 'Pb', 'Eb');
var
iteration: Integer;
begin
iteration := 0;
while size > 1024 do
begin
iteration := iteration + 1;
size := size div 1024;
end;
exit(size.ToString() + ' ' + postfixes[iteration + SizeType]);
end;
end.