public PhysicalFolder(ShellFolder parent, ShellItemId fileSystemId, string fileSystemPath)
: base(parent, fileSystemId, fileSystemPath)
{
CanDelete = true;
// this enables the "New" menus
Attributes |= SFGAO.SFGAO_STORAGEANCESTOR | SFGAO.SFGAO_STORAGE;
}
public MyShellItem(ShellFolder parent, ShellItemId fileSystemId, string fileSystemPath)
: base(parent, fileSystemId, fileSystemPath)
{
CanDelete = true;
CanMove = true;
CanCopy = true;
//ReadPropertiesFromShell = true;
}
/// <summary>
/// Initializes a new instance of the <see cref="OnDemandFolder"/> class.
/// We just add the same sync status column.
/// </summary>
/// <param name="parent">The parent.</param>
/// <param name="info">The information.</param>
public OnDemandFolder(ShellFolder parent, ShellItemId fileSystemId, string fileSystemPath) : base(parent, fileSystemId, fileSystemPath)
{
// since this is a FileSystem oriented NSE, we let base properties pass through
ReadPropertiesFromShell = true;
/// We just add the sync status column.
AddColumn(Props.System.StorageProviderUIStatus, SHCOLSTATE.SHCOLSTATE_ONBYDEFAULT);
}
public override ShellItem GetItem(ShellItemId id)
{
if (id == null)
{
throw new ArgumentNullException(nameof(id));
}
var tuple = RootFolder.ParseItemId(id);
if (tuple == null)
{
return(null); // not ours
}
using (var key = OpenKey(false))
{
if (key != null)
{
switch (tuple.Item1)
{
case true: // key/folder
using (var subKey = key.OpenSubKey(tuple.Item2, false))
{
if (subKey != null)
{
return(new RegistryKeyFolder(this, tuple.Item2));
}
}
break;
case false: // value/item
var value = key.GetValue(tuple.Item2);
if (value != null)
{
return(new RegistryValueItem(this, tuple.Item2));
}
break;
}
// either the type type (folder vs value) doesn't correspond, or we're parsing some external string so fallback on our parser
return(GetItem(tuple.Item2));
}
}
return(null);
}
public override ShellItem GetItem(ShellItemId id)
{
var item = base.GetItem(id);
if (item != null)
{
return(item);
}
// this is for Common Dialog Save As support
// here, we check it's a non-existing item that we may have built in GetItem(string displayName)
if (id.TryGetFileSystemName(out var fileName))
{
return(new MyShellItem(this, new FileInfo(Path.Combine(FileSystemPath, fileName))));
}
return(null);
}
// this is a necessary ShellBoost override for better performance (direct access instead of implicit call to EnumItems)
// https://www.shellboost.com/Doc/Developer-s-Guide/Items-enumeration
public override ShellItem GetItem(ShellItemId id)
{
var guidPidl = KeyShellItemId.From(id.Data, false) as GuidKeyShellItemId;
if (guidPidl == null)
{
return(null);
}
if (guidPidl.Value == Guid.Empty)
{
return(Root);
}
var apiItem = WebApi.GetAsync(guidPidl.Value).Result;
return(ShellItemFromApi(apiItem));
}
public static Tuple <bool?, string> ParseItemId(ShellItemId id)
{
var name = (KeyShellItemId.From(id?.Data, false) as StringKeyShellItemId)?.Value;
if (string.IsNullOrEmpty(name))
{
return(null);
}
if (name.StartsWith("V\\"))
{
return(new Tuple <bool?, string>(false, name.Substring(2)));
}
if (name.StartsWith("K\\"))
{
return(new Tuple <bool?, string>(true, name.Substring(2)));
}
return(new Tuple <bool?, string>(null, name));
}
public override bool Equals(object obj)
{
ShellItemId other = obj as ShellItemId;
if (other == null)
{
return(false);
}
byte[] v1 = Value;
byte[] v2 = other.Value;
if (v1.Length != v2.Length)
{
return(false);
}
for (int i = 0; i < v1.Length; i++)
{
if (v1 != v2)
{
return(false);
}
}
return(true);
}
public MyShellFolder(ShellFolder parent, ShellItemId fileSystemId, string fileSystemPath)
: base(parent, fileSystemId, fileSystemPath)
{
CanDelete = true;
}
protected override ShellItem CreateFileSystemFolder(ShellItemId fileSystemId, string fileSystemPath) => new MyShellFolder(this, fileSystemId, fileSystemPath);
protected override ShellItem CreateFileSystemItem(ShellItemId fileSystemId, string fileSystemPath) => new OnDemandItem(this, fileSystemId, fileSystemPath);
/// <summary>
/// Initializes a new instance of the <see cref="OnDemandItem"/> class.
/// </summary>
/// <param name="parent">The parent folder.</param>
/// <param name="info">The file.</param>
public OnDemandItem(ShellFolder parent, ShellItemId fileSystemId, string fileSystemPath) : base(parent, fileSystemId, fileSystemPath)
{
// since this is a FileSystem oriented NSE, we let base properties pass through
ReadPropertiesFromShell = true;
}
public IdList(ShellItemId relativeId)
: this(new ShellItemId[] { relativeId })
{
}
