internal FileInfoEx(DirectoryInfoEx parentDir, PIDL relPIDL)
{
Parent = parentDir;
//0.15: Fixed ShellFolder not freed.
using (ShellFolder2 parentShellFolder = parentDir.ShellFolder)
init(parentShellFolder, parentDir.PIDLRel, relPIDL);
}
/// <summary>
/// Rename a file or folder in an directory.
/// </summary>
public static void Rename(string source, string destName)
{
//DirectoryInfoEx srcDir = new DirectoryInfoEx(Path.GetDirectoryName(source));
FileSystemInfoEx srcElement = new FileSystemInfoEx(source);
string srcName = Path.GetFileName(source);
if (!srcElement.Exists || srcElement.Parent == null)
{
throw new IOException("Source not exists");
}
//0.15: Fixed ShellFolder not freed.
using (ShellFolder2 srcParentShellFolder = srcElement.Parent.ShellFolder)
{
if (srcParentShellFolder == null)
{
throw new IOException("Source directory does not support IShellFolder");
}
IntPtr tmpPtr;
int hr = srcParentShellFolder.SetNameOf(IntPtr.Zero, srcElement.PIDLRel.Ptr,
destName, ShellAPI.SHGNO.FORPARSING, out tmpPtr);
PIDL tmpPIDL = new PIDL(tmpPtr, false); //consume the IntPtr, and free it.
tmpPIDL.Free();
if (hr != ShellAPI.S_OK)
{
Marshal.ThrowExceptionForHR(hr);
}
}
}
private ShellFolder2 getIShellFolder()
{
if (this.FullName.Equals(IOTools.IID_Desktop))
{
return(getDesktopShellFolder());
}
else
{
ShellFolder2 retVal = getIShellFolderFromParent();
if (retVal != null)
{
return(retVal);
}
return(this.RequestPIDL((pidl, relPIDL) =>
{
using (ShellFolder2 parentShellFolder = getParentIShellFolder(pidl, out relPIDL))
{
IntPtr ptrShellFolder;
int hr = parentShellFolder.BindToObject(relPIDL.Ptr, IntPtr.Zero, ref ShellAPI.IID_IShellFolder2,
out ptrShellFolder);
if (ptrShellFolder == IntPtr.Zero || hr != ShellAPI.S_OK)
{
Marshal.ThrowExceptionForHR(hr);
}
return new ShellFolder2(ptrShellFolder);
}
}));
}
}
//internal static string getParentParseName(PIDL pidl)
//{
// PIDL relPIDL;
// PIDL parentPIDL = getParentPIDL(pidl, out relPIDL);
// IShellFolder sf = getParentIShellFolder(parentPIDL, out relPIDL);
// if (relPIDL.Size == 0)
// return IOTools.IID_Desktop;
// return loadName(sf, relPIDL, ShellAPI.SHGNO.FORPARSING);
//}
internal static ShellFolder2 getParentIShellFolder(PIDL pidl, out PIDL relPIDL)
{
int hr;
IntPtr ptrShellFolder = IntPtr.Zero;
if (pidl.Size == 0 || PIDL.ILFindLastID(pidl.Ptr) == pidl.Ptr || //is root or parent is root
PIDLToPath(pidl) == Environment.GetFolderPath(Environment.SpecialFolder.Desktop))
{
hr = ShellAPI.SHGetDesktopFolder(out ptrShellFolder);
relPIDL = new PIDL(pidl, true);
}
else
{
PIDL parentPIDL = getParentPIDL(pidl, out relPIDL);
//Console.WriteLine("ParentPIDL.Size = {0}", parentPIDL.Size);
Guid guid = ShellAPI.IID_IShellFolder2;
using (ShellFolder2 _desktopShellFolder = getDesktopShellFolder())
hr = _desktopShellFolder.BindToObject(parentPIDL.Ptr, IntPtr.Zero,
ref guid, out ptrShellFolder);
if (parentPIDL != null)
{
parentPIDL.Free();
}
}
if (hr == ShellAPI.S_OK && ptrShellFolder != IntPtr.Zero)
{
return(new ShellFolder2(ptrShellFolder));
}
Marshal.ThrowExceptionForHR(hr);
return(null); //mute error.
}
/// <summary>
/// Refresh the file / directory info. Does not refresh directory contents
/// because it refresh every time GetFiles/Directories/FileSystemInfos is called.
/// </summary>
public void Refresh(RefreshModeEnum mode = RefreshModeEnum.AllProps)
{
RefreshMode |= mode; //0.23 : Delay loading some properties.
PIDL relPIDL = null;
if (!Exists)
{
refresh(null, null, null, mode);
}
else
{
try
{
//0.16: Fixed ShellFolder not freed
this.RequestPIDL(pidlLookup =>
{
using (ShellFolder2 sf = getParentIShellFolder(pidlLookup, out relPIDL))
refresh(sf, relPIDL, pidlLookup, mode);
});
}
catch (NullReferenceException)
{
refresh(null, null, null, mode);
}
}
internal FileInfoEx(DirectoryInfoEx parentDir, PIDL relPIDL)
{
Parent = parentDir;
//0.15: Fixed ShellFolder not freed.
using (ShellFolder2 parentShellFolder = parentDir.ShellFolder)
parentDir.RequestRelativePIDL(parentRelPidl =>
init(parentShellFolder, parentRelPidl, relPIDL));
}
internal static string PIDLToPath(PIDL pidlFull)
{
if (DirectoryInfoEx.DesktopDirectory.RequestPIDL(desktopPIDL => pidlFull.Equals(desktopPIDL)))
{
return("::{00021400-0000-0000-C000-000000000046}");
}
using (ShellFolder2 _desktopShellFolder = getDesktopShellFolder())
return(loadName(_desktopShellFolder, pidlFull, ShellAPI.SHGNO.FORPARSING));
}
internal DirectoryInfoEx(DirectoryInfoEx parentDir, PIDL relPIDL)
{
Parent = parentDir;
parentDir.RequestPIDL(parentPIDL =>
{
//0.15: Fixed ShellFolder not freed.
using (ShellFolder2 parentShellFolder = parentDir.ShellFolder)
init(parentShellFolder, parentPIDL, relPIDL);
});
}
/// <summary>
/// Take a directory and return the IStorage PTr interface.
/// </summary>
internal static bool getIStorage(DirectoryInfoEx dir, out IntPtr storagePtr)
{
//0.19 Fixed ArgumentException when getting storage of C:\{User}\Desktop.
if (dir.FullName.Equals(Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory)))
{
dir = DirectoryInfoEx.DesktopDirectory;
}
IntPtr storePtr = IntPtr.Zero;
//0.15 : Fixed PIDL not freed correctly.
try
{
return(dir.RequestRelativePIDL(dirPIDLRel =>
{
int hr;
if (dirPIDLRel.Size == 0)
{
IntPtr pidlLast = IntPtr.Zero;
hr = ShellAPI.SHBindToParent(dirPIDLRel.Ptr, ShellAPI.IID_IStorage,
out storePtr, ref pidlLast);
}
else
{
//0.15: Fixed ShellFolder not freed correctly.
using (ShellFolder2 dirParentShellFolder = dir.Parent.ShellFolder)
if (dirParentShellFolder != null)
{
hr = dirParentShellFolder.BindToStorage(
dirPIDLRel.Ptr, IntPtr.Zero, ref ShellAPI.IID_IStorage,
out storePtr);
}
else
{
storePtr = IntPtr.Zero;
return false;
}
}
if ((hr != ShellAPI.S_OK))
{
storePtr = IntPtr.Zero;
Marshal.ThrowExceptionForHR(hr);
return false;
}
return true;
}));
}
finally
{
storagePtr = storePtr;
}
}
/// <summary>
/// Convert a Parsable path to PIDL
/// </summary>
private static PIDL PathtoPIDL(string path)
{
IntPtr pidlPtr;
uint pchEaten = 0;
ShellAPI.SFGAO pdwAttributes = 0;
using (ShellFolder2 _desktopShellFolder = getDesktopShellFolder())
_desktopShellFolder.ParseDisplayName(IntPtr.Zero, IntPtr.Zero, path, ref pchEaten, out pidlPtr, ref pdwAttributes);
PIDL pidl = new PIDL(pidlPtr, false);
return(pidl);
}
internal static ShellFolder2 getDesktopShellFolder()
{
IntPtr ptrShellFolder;
int hr = ShellAPI.SHGetDesktopFolder(out ptrShellFolder);
if (hr == ShellAPI.S_OK && ptrShellFolder != IntPtr.Zero)
{
ShellFolder2 sf = new ShellFolder2(ptrShellFolder);
//0.13: Fixed? Desktop ShellFolder not released. (may be a cause of AccessViolationException.)
//GC.SuppressFinalize(sf);
return(sf);
}
Marshal.ThrowExceptionForHR(hr);
return(null); //mute error.
}
internal DirectoryInfoEx(DirectoryInfoEx parentDir, PIDL relPIDL)
{
Parent = parentDir;
PIDL parentPIDL = parentDir.PIDL;
try
{
//0.15: Fixed ShellFolder not freed.
using (ShellFolder2 parentShellFolder = parentDir.ShellFolder)
init(parentShellFolder, parentPIDL, relPIDL);
}
finally { if (parentPIDL != null)
{
parentPIDL.Free();
}
parentPIDL = null; }
}
internal static string PIDLToPath(PIDL pidlFull)
{
PIDL desktopPIDL = DirectoryInfoEx.DesktopDirectory.PIDL;
if (pidlFull.Equals(desktopPIDL))
{
return("::{00021400-0000-0000-C000-000000000046}");
}
if (desktopPIDL != null)
{
desktopPIDL.Free();
}
desktopPIDL = null;
using (ShellFolder2 _desktopShellFolder = getDesktopShellFolder())
return(loadName(_desktopShellFolder, pidlFull, ShellAPI.SHGNO.FORPARSING));
}
private ShellFolder2 getIShellFolder()
{
if (this.FullName.Equals(IOTools.IID_Desktop))
{
return(getDesktopShellFolder());
}
else
{
ShellFolder2 retVal = getIShellFolderFromParent();
if (retVal != null)
{
return(retVal);
}
PIDL pidlLookup = PIDL;
PIDL relPIDL = this.PIDLRel;
try
{
using (ShellFolder2 parentShellFolder = getParentIShellFolder(pidlLookup, out relPIDL))
{
IntPtr ptrShellFolder;
int hr = parentShellFolder.BindToObject(relPIDL.Ptr, IntPtr.Zero, ref ShellAPI.IID_IShellFolder2,
out ptrShellFolder);
if (ptrShellFolder == IntPtr.Zero || hr != ShellAPI.S_OK)
{
Marshal.ThrowExceptionForHR(hr);
}
return(new ShellFolder2(ptrShellFolder));
}
}
finally
{
if (pidlLookup != null)
{
pidlLookup.Free();
}
if (relPIDL != null)
{
relPIDL.Free();
}
relPIDL = null;
pidlLookup = null;
}
}
}
private ShellFolder2 getIShellFolderFromParent()
{
if (_parent != null)
{
using (ShellFolder2 parentShellFolder = _parent.ShellFolder)
{
IntPtr ptrShellFolder;
PIDL relPIDL = this.PIDLRel;
int hr = parentShellFolder.BindToObject(relPIDL.Ptr, IntPtr.Zero, ref ShellAPI.IID_IShellFolder2,
out ptrShellFolder);
if (ptrShellFolder != IntPtr.Zero && hr == ShellAPI.S_OK)
{
return(new ShellFolder2(ptrShellFolder));
}
}
}
return(null);
}
internal static PIDL PathToPIDL(string path)
{
path = Helper.RemoveSlash(path);
IntPtr pidlPtr;
uint pchEaten = 0;
ShellAPI.SFGAO pdwAttributes = 0;
using (ShellFolder2 _desktopShellFolder = getDesktopShellFolder())
{
int hr = _desktopShellFolder.ParseDisplayName(
IntPtr.Zero, IntPtr.Zero, path, ref pchEaten, out pidlPtr, ref pdwAttributes);
if (pidlPtr == IntPtr.Zero || hr != ShellAPI.S_OK)
{ /*Marshal.ThrowExceptionForHR(hr);*/
return(null);
}
//Commented because this is part of init and it's too time consuming.
}
return(new PIDL(pidlPtr, false));
}
/// <summary>
/// Refresh the file / directory info. Does not refresh directory contents
/// because it refresh every time GetFiles/Directories/FileSystemInfos is called.
/// </summary>
public new void Refresh()
{
PIDL relPIDL = null;
if (!Exists)
{
refresh(null, null, null);
}
else
{
try
{
//0.16: Fixed ShellFolder not freed
using (ShellFolder2 sf = getParentIShellFolder(PIDL, out relPIDL))
refresh(sf, relPIDL, PIDL);
}
catch (NullReferenceException)
{
refresh(null, null, null);
}
}
private bool getExists()
{
if (FullName == "::{00021400-0000-0000-C000-000000000046}") //Desktop
{
return(true);
}
else if (FullName == null)
{
return(false);
}
else
{
try
{
if (_pidl != null)
{
using (ShellFolder2 _desktopShellFolder = getDesktopShellFolder())
loadName(_desktopShellFolder, _pidl, ShellAPI.SHGNO.FORPARSING);
return(true);
}
else
{
PIDL pidlLookup = PathToPIDL(FullName);
try
{
return(pidlLookup != null);
}
finally { if (pidlLookup != null)
{
pidlLookup.Free();
}
}
}
}
catch (FileNotFoundException)
{
return(false);
}
}
}
public IEnumerable <DirectoryInfoEx> EnumerateDirectories(String searchPattern, SearchOption searchOption, CancelDelegate cancel)
{
IntPtr ptrEnum = IntPtr.Zero;
IEnumIDList IEnum = null;
PIDL parentPIDL = this.PIDL;
using (ShellFolder2 sf = this.ShellFolder)
try
{
if (sf.EnumObjects(IntPtr.Zero, flag, out ptrEnum) == ShellAPI.S_OK)
{
IEnum = (IEnumIDList)Marshal.GetTypedObjectForIUnknown(ptrEnum, typeof(IEnumIDList));
IntPtr pidlSubItem;
int celtFetched;
while (!IOTools.IsCancelTriggered(cancel) && IEnum.Next(1, out pidlSubItem, out celtFetched) == ShellAPI.S_OK && celtFetched == 1)
{
ShellAPI.SFGAO attribs = ShellAPI.SFGAO.FOLDER | ShellAPI.SFGAO.FILESYSTEM | ShellAPI.SFGAO.STREAM |
ShellAPI.SFGAO.FILESYSANCESTOR | ShellAPI.SFGAO.NONENUMERATED;
sf.GetAttributesOf(1, new IntPtr[] { pidlSubItem }, ref attribs);
bool isZip = ((attribs & ShellAPI.SFGAO.FOLDER) != 0 && (attribs & ShellAPI.SFGAO.STREAM) != 0);
bool isDir = ((attribs & ShellAPI.SFGAO.FOLDER) != 0);
//0.18 Added a check for NonEnumerated items so DirectoryInfoEx.EnumerateDirectories wont return some system directories (e.g. C:\MSOCache)
//bool isNonEnumerated = ((attribs & ShellAPI.SFGAO.NONENUMERATED) != 0);
bool isFileAncestor = ((attribs & ShellAPI.SFGAO.FILESYSANCESTOR) != 0);
bool includedFolder = false;
if (!isZip && !isFileAncestor) //0.14 : Added allowed folder list so Non-FileAncestor directory (e.g. recycle-bin) is listed.
{
string[] allowedPaths = new string[]
{
"::{645FF040-5081-101B-9F08-00AA002F954E}"
};
string path = PIDLToPath(new PIDL(pidlSubItem, false));
foreach (string allowedPath in allowedPaths)
{
if (allowedPath == path)
{
includedFolder = true;
}
}
if (!includedFolder)
{
if (IOTools.HasParent(this, NetworkDirectory))
{
includedFolder = true;
}
}
}
if (isDir && !isZip /*&& !isNonEnumerated*/ && (isFileAncestor || includedFolder))
{
PIDL subPidl = new PIDL(pidlSubItem, false);
//DirectoryInfoEx di = new DirectoryInfoEx(this, subPidl);
//0.22: Fix illegal PIDL for Directory under Library.ms directory
bool isLibraryItem = IOTools.IsLibraryItem(FullName);
DirectoryInfoEx di = new DirectoryInfoEx(sf, parentPIDL, subPidl, isLibraryItem);
if (IOTools.MatchFileMask(di.Name, searchPattern))
{
yield return(di);
}
if (searchOption == SearchOption.AllDirectories)
{
IEnumerator <DirectoryInfoEx> dirEnumerator = di.EnumerateDirectories(searchPattern, searchOption, cancel).GetEnumerator();
while (dirEnumerator.MoveNext())
{
//Debug.Assert(dirEnumerator.Current.IsFolder);
yield return(dirEnumerator.Current);
}
}
}
}
}
}
finally
{
if (parentPIDL != null)
{
parentPIDL.Free();
parentPIDL = null;
}
if (IEnum != null)
{
Marshal.ReleaseComObject(IEnum);
Marshal.Release(ptrEnum);
}
}
}
internal static string PtrToPath(IntPtr ptr)
{
using (ShellFolder2 _desktopShellFolder = getDesktopShellFolder())
return(loadName(_desktopShellFolder, ptr, ShellAPI.SHGNO.FORPARSING));
}
//0.17: Added DirectoryInfoEx.EnumerateFiles/EnumerateDirectories/EnumerateFileSystemInfos() methods which work similar as the one in .Net4
public IEnumerable <FileInfoEx> EnumerateFiles(String searchPattern, SearchOption searchOption, CancelDelegate cancel)
{
IntPtr ptrEnum = IntPtr.Zero;
IEnumIDList IEnum = null;
PIDL parentPIDL = this.PIDL;
using (ShellFolder2 sf = this.ShellFolder)
try
{
if (sf.EnumObjects(IntPtr.Zero, flag, out ptrEnum) == ShellAPI.S_OK)
{
IEnum = (IEnumIDList)Marshal.GetTypedObjectForIUnknown(ptrEnum, typeof(IEnumIDList));
IntPtr pidlSubItem;
int celtFetched;
while (!IOTools.IsCancelTriggered(cancel) && IEnum.Next(1, out pidlSubItem, out celtFetched) == ShellAPI.S_OK && celtFetched == 1)
{
ShellAPI.SFGAO attribs = ShellAPI.SFGAO.FOLDER | ShellAPI.SFGAO.FILESYSTEM | ShellAPI.SFGAO.STREAM;
sf.GetAttributesOf(1, new IntPtr[] { pidlSubItem }, ref attribs);
//http://www.eggheadcafe.com/aspnet_answers/platformsdkshell/Mar2006/post26165601.asp
bool isZip = ((attribs & ShellAPI.SFGAO.FOLDER) != 0 && (attribs & ShellAPI.SFGAO.STREAM) != 0);
bool isDir = ((attribs & ShellAPI.SFGAO.FOLDER) != 0);
if (isZip || !isDir)
{
PIDL subRelPidl = new PIDL(pidlSubItem, false);
//FileInfoEx fi = new FileInfoEx(sf, this, subRelPidl);
FileInfoEx fi = new FileInfoEx(sf, parentPIDL, subRelPidl);
if (IOTools.MatchFileMask(fi.Name, searchPattern))
{
yield return(fi);
}
//0.18: Fixed DirectoryInfoEx.EnumerateFiles, SearchPattern is ignored.
}
}
if (searchOption == SearchOption.AllDirectories)
{
IEnumerator <DirectoryInfoEx> dirEnumerator = EnumerateDirectories("*", SearchOption.TopDirectoryOnly, cancel).GetEnumerator();
while (!IOTools.IsCancelTriggered(cancel) && dirEnumerator.MoveNext())
{
IEnumerator <FileInfoEx> fileEnumerator = dirEnumerator.Current.EnumerateFiles(searchPattern, searchOption, cancel).GetEnumerator();
while (fileEnumerator.MoveNext())
{
//Debug.Assert(!fileEnumerator.Current.IsFolder);
yield return(fileEnumerator.Current);
}
}
}
}
}
finally
{
if (parentPIDL != null)
{
parentPIDL.Free();
parentPIDL = null;
}
if (IEnum != null)
{
Marshal.ReleaseComObject(IEnum);
Marshal.Release(ptrEnum);
}
}
}
