public static IntPtr IdListToPidl(IdList idList)
{
// Turn the ID list into a set of raw bytes.
var rawBytes = new List<byte>();
// Each item starts with it's length, then the data. The length includes
// two bytes, as it counts the length as a short.
foreach (var id in idList.Ids)
{
// Add the size and data.
short length = (short)(id.Length + 2);
rawBytes.AddRange(BitConverter.GetBytes(length));
rawBytes.AddRange(id.RawId);
}
// Write the null termination.
rawBytes.Add(0);
rawBytes.Add(0);
// Allocate COM memory for the pidl.
var ptr = Marshal.AllocCoTaskMem(rawBytes.Count);
// Copy the raw bytes.
for (var i = 0; i < rawBytes.Count; i++)
{
Marshal.WriteByte(ptr, i, rawBytes[i]);
}
// We've allocated the pidl, copied it and are ready to rock.
return ptr;
}
/// <summary>
/// Determines whether two idlists are equal.
/// </summary>
/// <param name="idList">The ID list to compare against.</param>
/// <returns>True if the id lists are equal, false otherwise.</returns>
public bool Matches(IdList idList)
{
// We must have a valid set to match against.
if (idList == null || idList.ids == null || idList.ids.Count != ids.Count)
return false;
// If there is any id that doesn't match, we return false.
return !ids.Where((t, i) => !t.Equals(idList.ids[i])).Any();
}
public GithubContextMenu(IdList folderIdList, IdList[] folderItemIdLists)
{
_folderItemIdLists = folderItemIdLists;
_folderIdList = folderIdList;
}
public IContextMenu CreateContextMenu(IdList folderIdList, IdList[] folderItemIdLists)
{
return new GithubContextMenu(folderIdList, folderItemIdLists);
}
public static IdList Combine(IdList folderIdList, IdList folderItemIdList)
{
var combined = new List<ShellId>(folderIdList.Ids);
combined.AddRange(folderItemIdList.Ids);
return IdList.Create(combined);
}
private IShellNamespaceItem GetChildItem(IdList idList)
{
// Go through each item in the list.
var currentFolder = proxyFolder;
for (int depth = 0; depth < idList.Ids.Count; depth++)
{
// If we are NOT on the last item, we're looking for a folder.
if (depth != idList.Ids.Count - 1)
{
currentFolder = GetChildFolder(currentFolder, idList.Ids[depth]);
continue;
}
// We ARE looking for an item, so get it.
var item =
currentFolder
.GetChildren(ShellNamespaceEnumerationFlags.Folders | ShellNamespaceEnumerationFlags.Items)
.SingleOrDefault(i => i.GetShellId().Equals(idList.Ids[depth]));
if (item == null)
{
var me = currentFolder.GetDisplayName(DisplayNameContext.Normal);
var you = idList.Ids[depth].ToString();
return null;
}
return item;
}
return null;
}
int IPersistFolder.Initialize(IntPtr pidl)
{
// Store the folder absolute pidl.
idListAbsolute = PidlManager.PidlToIdlist(pidl);
return WinError.S_OK;
}
