internal ShellItem GetShellItem(PIDL pidlFull)
{
ShellItem current = DesktopItem;
if (pidlFull.Ptr == IntPtr.Zero)
{
return(current);
}
foreach (IntPtr pidlRel in pidlFull)
{
int index;
if ((index = current.IndexOf(pidlRel)) > -1)
{
current = current[index];
}
else
{
current = null;
break;
}
}
return(current);
}
public PIDL(PIDL pidl, bool clone)
{
if (clone)
this.pidl = ILClone(pidl.Ptr);
else
this.pidl = pidl.Ptr;
}
public bool MoveNext()
{
if (clonePidl != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(clonePidl);
clonePidl = IntPtr.Zero;
}
if (start)
{
start = false;
return(true);
}
else
{
IntPtr newPidl = ILGetNext(currentPidl);
if (!PIDL.IsEmpty(newPidl))
{
currentPidl = newPidl;
return(true);
}
else
{
return(false);
}
}
}
public PIDL(PIDL pidl, bool clone)
{
if (clone)
{
this.pidl = ILClone(pidl.Ptr);
}
else
{
this.pidl = pidl.Ptr;
}
}
internal ShellItem(ShellBrowser browser, ShellAPI.CSIDL specialFolder)
{
IntPtr pidl = IntPtr.Zero;
ShellAPI.SHGetSpecialFolderLocation(IntPtr.Zero, specialFolder, out pidl);
//
IntPtr shellFolderPtr;
this.browser = browser;
//
if (specialFolder == ShellAPI.CSIDL.DESKTOP)
{
ShellAPI.SHGetDesktopFolder(out shellFolderPtr);
//
this.shellFolderPtr = shellFolderPtr;
this.shellFolder = (IShellFolder)Marshal.GetTypedObjectForIUnknown(shellFolderPtr, typeof(IShellFolder));
}
else
{
this.shellFolder = GetShellFolderFromPidl(pidl, out shellFolderPtr);
//
this.parentItem = browser.DesktopItem;
}
//
subFiles = new ShellItemCollection(this);
subFolders = new ShellItemCollection(this);
pidlRel = new PIDL(pidl, false);
ShellAPI.SHFILEINFO info = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(pidlRel.Ptr, 0, ref info, ShellAPI.cbFileInfo,
ShellAPI.SHGFI.PIDL | ShellAPI.SHGFI.TYPENAME | ShellAPI.SHGFI.SYSICONINDEX | ShellAPI.SHGFI.DISPLAYNAME);
type = info.szTypeName;
text = info.szDisplayName;
//
StringBuilder pathBuilder = new StringBuilder(ShellAPI.MAX_PATH);
ShellAPI.SHGetFolderPath(
IntPtr.Zero, specialFolder,
IntPtr.Zero, ShellAPI.SHGFP.TYPE_CURRENT, pathBuilder);
this.path = pathBuilder.ToString();
//
if (specialFolder == ShellAPI.CSIDL.DESKTOP)
{
ShellImageList.SetIconIndex(this, info.iIcon, false);
ShellImageList.SetIconIndex(this, info.iIcon, true);
//
SetAttributesDesktop(this);
}
else
{
SetAttributesFolder(this);
SetInfo(this);
}
sortFlag = 1;
}
protected override void WndProc(ref Message m)
{
if (m.Msg == (int)ShellAPI.WM.SH_NOTIFY)
{
ShellAPI.SHNOTIFYSTRUCT shNotify =
(ShellAPI.SHNOTIFYSTRUCT)Marshal.PtrToStructure(m.WParam, typeof(ShellAPI.SHNOTIFYSTRUCT));
switch ((ShellAPI.SHCNE)m.LParam)
{
//#region File Changes
//case ShellAPI.SHCNE.CREATE:
// #region Create Item
// {
// if (!PIDL.IsEmpty(shNotify.dwItem1))
// {
// IntPtr parent, child, relative;
// PIDL.SplitPidl(shNotify.dwItem1, out parent, out child);
// PIDL parentPIDL = new PIDL(parent, false);
// ShellItem parentItem = br.GetShellItem(parentPIDL);
// if (parentItem != null && parentItem.FilesExpanded && !parentItem.SubFiles.Contains(child))
// {
// ShellAPI.SHGetRealIDL(
// parentItem.ShellFolder,
// child,
// out relative);
// parentItem.AddItem(new ShellItem(br, parentItem, relative));
// }
// Marshal.FreeCoTaskMem(child);
// parentPIDL.Free();
// }
// }
// #endregion
// break;
//case ShellAPI.SHCNE.RENAMEITEM:
// #region Rename Item
// {
// if (!PIDL.IsEmpty(shNotify.dwItem1) && !PIDL.IsEmpty(shNotify.dwItem2))
// {
// ShellItem item = br.GetShellItem(new PIDL(shNotify.dwItem1, true));
// if (item != null)
// item.Update(shNotify.dwItem2, ShellItemUpdateType.Renamed);
// }
// }
// #endregion
// break;
//case ShellAPI.SHCNE.DELETE:
// #region Delete Item
// {
// if (!PIDL.IsEmpty(shNotify.dwItem1))
// {
// IntPtr parent, child;
// PIDL.SplitPidl(shNotify.dwItem1, out parent, out child);
// PIDL parentPIDL = new PIDL(parent, false);
// ShellItem parentItem = br.GetShellItem(parentPIDL);
// if (parentItem != null && parentItem.SubFiles.Contains(child))
// parentItem.RemoveItem(parentItem.SubFiles[child]);
// Marshal.FreeCoTaskMem(child);
// parentPIDL.Free();
// }
// }
// #endregion
// break;
//case ShellAPI.SHCNE.UPDATEITEM:
// #region Update Item
// {
// if (!PIDL.IsEmpty(shNotify.dwItem1))
// {
// ShellItem item = br.GetShellItem(new PIDL(shNotify.dwItem1, true));
// if (item != null)
// {
// Console.Out.WriteLine("Item: {0}", item);
// item.Update(IntPtr.Zero, ShellItemUpdateType.Updated);
// item.Update(IntPtr.Zero, ShellItemUpdateType.IconChange);
// }
// }
// }
// #endregion
// break;
//#endregion
#region Folder Changes
case ShellAPI.SHCNE.MKDIR:
case ShellAPI.SHCNE.DRIVEADD:
case ShellAPI.SHCNE.DRIVEADDGUI:
#region Make Directory
{
if (!PIDL.IsEmpty(shNotify.dwItem1))
{
IntPtr parent, child, relative;
PIDL.SplitPidl(shNotify.dwItem1, out parent, out child);
PIDL parentPIDL = new PIDL(parent, false);
ShellItem parentItem = br.GetShellItem(parentPIDL);
if (parentItem != null && parentItem.FoldersExpanded && !parentItem.SubFolders.Contains(child))
{
ShellAPI.SHGetRealIDL(
parentItem.ShellFolder,
child,
out relative);
IntPtr shellFolderPtr;
if (parentItem.ShellFolder.BindToObject(
relative,
IntPtr.Zero,
ref ShellAPI.IID_IShellFolder,
out shellFolderPtr) == ShellAPI.S_OK)
{
parentItem.AddItem(new ShellItem(br, parentItem, relative, shellFolderPtr));
}
else
Marshal.FreeCoTaskMem(relative);
}
Marshal.FreeCoTaskMem(child);
//parentPIDL.Free();
}
}
#endregion
break;
case ShellAPI.SHCNE.RENAMEFOLDER:
//#region Rename Directory
//{
// if (!PIDL.IsEmpty(shNotify.dwItem1) && !PIDL.IsEmpty(shNotify.dwItem2))
// {
// ShellItem item = br.GetShellItem(new PIDL(shNotify.dwItem1, false));
// if (item != null)
// {
// //Console.Out.WriteLine("Update: {0}", item);
// item.Update(shNotify.dwItem2, ShellItemUpdateType.Renamed);
// }
// }
//}
//#endregion
break;
case ShellAPI.SHCNE.RMDIR:
case ShellAPI.SHCNE.DRIVEREMOVED:
//#region Remove Directory
//{
// if (!PIDL.IsEmpty(shNotify.dwItem1))
// {
// IntPtr parent, child;
// PIDL.SplitPidl(shNotify.dwItem1, out parent, out child);
// PIDL parentPIDL = new PIDL(parent, false);
// ShellItem parentItem = br.GetShellItem(parentPIDL);
// if (parentItem != null && parentItem.SubFolders.Contains(child))
// parentItem.RemoveItem(parentItem.SubFolders[child]);
// Marshal.FreeCoTaskMem(child);
// parentPIDL.Free();
// }
//}
//#endregion
break;
case ShellAPI.SHCNE.UPDATEDIR:
case ShellAPI.SHCNE.ATTRIBUTES:
#region Update Directory
{
if (!PIDL.IsEmpty(shNotify.dwItem1))
{
ShellItem item = br.GetShellItem(new PIDL(shNotify.dwItem1, true));
if (item != null)
{
item.Update(IntPtr.Zero, ShellItemUpdateType.Updated);
item.Update(IntPtr.Zero, ShellItemUpdateType.IconChange);
}
}
}
#endregion
break;
case ShellAPI.SHCNE.MEDIAINSERTED:
case ShellAPI.SHCNE.MEDIAREMOVED:
#region Media Change
{
if (!PIDL.IsEmpty(shNotify.dwItem1))
{
ShellItem item = br.GetShellItem(new PIDL(shNotify.dwItem1, true));
if (item != null)
item.Update(IntPtr.Zero, ShellItemUpdateType.MediaChange);
}
}
#endregion
break;
#endregion
#region Other Changes
case ShellAPI.SHCNE.ASSOCCHANGED:
break;
case ShellAPI.SHCNE.NETSHARE:
case ShellAPI.SHCNE.NETUNSHARE:
break;
case ShellAPI.SHCNE.UPDATEIMAGE:
UpdateRecycleBin();
break;
#endregion
}
}
base.WndProc(ref m);
}
internal ShellItem(ShellBrowser browser, ShellItem parentItem, IntPtr pidl, IntPtr shellFolderPtr)
{
this.browser = browser;
this.parentItem = parentItem;
this.shellFolderPtr = shellFolderPtr;
this.shellFolder = (IShellFolder)Marshal.GetTypedObjectForIUnknown(shellFolderPtr, typeof(IShellFolder));
subFiles = new ShellItemCollection(this);
subFolders = new ShellItemCollection(this);
pidlRel = new PIDL(pidl, false);
SetText(this);
SetPath(this);
SetAttributesFolder(this);
SetInfo(this);
sortFlag = MakeSortFlag(this);
}
internal void Update(IntPtr newPidlFull, ShellItemUpdateType changeType)
{
browser.UpdateCondition.ContinueUpdate = false;
lock (browser)
{
#region Change Pidl and ShellFolder
if (newPidlFull != IntPtr.Zero)
{
IntPtr tempPidl = PIDL.ILClone(PIDL.ILFindLastID(newPidlFull)), newPidlRel, newShellFolderPtr;
ShellAPI.SHGetRealIDL(ParentItem.ShellFolder, tempPidl, out newPidlRel);
if (IsFolder && ParentItem.ShellFolder.BindToObject(
newPidlRel,
IntPtr.Zero,
ref ShellAPI.IID_IShellFolder,
out newShellFolderPtr) == ShellAPI.S_OK)
{
Marshal.ReleaseComObject(shellFolder);
Marshal.Release(shellFolderPtr);
pidlRel.Free();
shellFolderPtr = newShellFolderPtr;
shellFolder = (IShellFolder)Marshal.GetTypedObjectForIUnknown(shellFolderPtr, typeof(IShellFolder));
pidlRel = new PIDL(newPidlRel, false);
foreach (ShellItem child in SubFolders)
UpdateShellFolders(child);
}
else
{
pidlRel.Free();
pidlRel = new PIDL(newPidlRel, false);
}
Marshal.FreeCoTaskMem(tempPidl);
Marshal.FreeCoTaskMem(newPidlFull);
}
#endregion
#region Make Other Changes
switch (changeType)
{
case ShellItemUpdateType.Renamed:
SetText(this);
SetPath(this);
break;
case ShellItemUpdateType.Updated:
if (IsFolder)
SetAttributesFolder(this);
else
SetAttributesFile(this);
break;
case ShellItemUpdateType.MediaChange:
SetInfo(this);
SetText(this);
Clear(true, true);
break;
case ShellItemUpdateType.IconChange:
SetInfo(this);
break;
}
#endregion
}
if (ShellItemUpdated != null) ShellItemUpdated(this, EventArgs.Empty);
Browser.OnShellItemUpdate(ParentItem, new ShellItemUpdateEventArgs(this, this, changeType));
}
internal ShellItem(ShellBrowser browser, ShellItem parentItem, IntPtr pidl)
{
this.browser = browser;
this.parentItem = parentItem;
pidlRel = new PIDL(pidl, false);
SetText(this);
SetPath(this);
SetAttributesFile(this);
SetInfo(this);
sortFlag = MakeSortFlag(this);
}
internal ShellItem GetShellItem(PIDL pidlFull)
{
ShellItem current = DesktopItem;
if (pidlFull.Ptr == IntPtr.Zero)
return current;
foreach (IntPtr pidlRel in pidlFull)
{
int index;
if ((index = current.IndexOf(pidlRel)) > -1)
{
current = current[index];
}
else
{
current = null;
break;
}
}
return current;
}
internal static void SetIconIndex(ShellItem item, int index, bool SelectedIcon)
{
bool HasOverlay = false; //true if it's an overlay
int rVal = 0; //The returned Index
ShellAPI.SHGFI dwflag = ShellAPI.SHGFI.SYSICONINDEX | ShellAPI.SHGFI.PIDL | ShellAPI.SHGFI.ICON;
ShellAPI.FILE_ATTRIBUTE dwAttr = 0;
//build Key into HashTable for this Item
int Key = index * 256;
if (item.IsLink)
{
Key = Key | 1;
dwflag = dwflag | ShellAPI.SHGFI.LINKOVERLAY;
HasOverlay = true;
}
if (item.IsShared)
{
Key = Key | 2;
dwflag = dwflag | ShellAPI.SHGFI.ADDOVERLAYS;
HasOverlay = true;
}
if (SelectedIcon)
{
Key = Key | 4;
dwflag = dwflag | ShellAPI.SHGFI.OPENICON;
HasOverlay = true; //not really an overlay, but handled the same
}
if (imageTable.ContainsKey(Key))
{
rVal = (int)imageTable[Key];
}
else if (!HasOverlay && !item.IsHidden) //for non-overlay icons, we already have
{
rVal = (int)System.Math.Floor((double)Key / 256); // the right index -- put in table
imageTable[Key] = rVal;
}
else //don't have iconindex for an overlay, get it.
{
if (item.IsFileSystem & !item.IsDisk & !item.IsFolder)
{
dwflag = dwflag | ShellAPI.SHGFI.USEFILEATTRIBUTES;
dwAttr = dwAttr | ShellAPI.FILE_ATTRIBUTE.NORMAL;
}
PIDL pidlFull = item.PIDLFull;
ShellAPI.SHFILEINFO shfiSmall = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(pidlFull.Ptr, dwAttr, ref shfiSmall, ShellAPI.cbFileInfo, dwflag | ShellAPI.SHGFI.SMALLICON);
ShellAPI.SHFILEINFO shfiLarge = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(pidlFull.Ptr, dwAttr, ref shfiLarge, ShellAPI.cbFileInfo, dwflag | ShellAPI.SHGFI.LARGEICON);
Marshal.FreeCoTaskMem(pidlFull.Ptr);
lock (imageTable)
{
rVal = ShellAPI.ImageList_ReplaceIcon(smallImageListHandle, -1, shfiSmall.hIcon);
ShellAPI.ImageList_ReplaceIcon(largeImageListHandle, -1, shfiLarge.hIcon);
}
ShellAPI.DestroyIcon(shfiSmall.hIcon);
ShellAPI.DestroyIcon(shfiLarge.hIcon);
imageTable[Key] = rVal;
}
if (SelectedIcon)
{
item.SelectedImageIndex = rVal;
}
else
{
item.ImageIndex = rVal;
}
}
protected override void WndProc(ref Message m)
{
if (m.Msg == (int)ShellAPI.WM.SH_NOTIFY)
{
ShellAPI.SHNOTIFYSTRUCT shNotify =
(ShellAPI.SHNOTIFYSTRUCT)Marshal.PtrToStructure(m.WParam, typeof(ShellAPI.SHNOTIFYSTRUCT));
switch ((ShellAPI.SHCNE)m.LParam)
{
//#region File Changes
//case ShellAPI.SHCNE.CREATE:
// #region Create Item
// {
// if (!PIDL.IsEmpty(shNotify.dwItem1))
// {
// IntPtr parent, child, relative;
// PIDL.SplitPidl(shNotify.dwItem1, out parent, out child);
// PIDL parentPIDL = new PIDL(parent, false);
// ShellItem parentItem = br.GetShellItem(parentPIDL);
// if (parentItem != null && parentItem.FilesExpanded && !parentItem.SubFiles.Contains(child))
// {
// ShellAPI.SHGetRealIDL(
// parentItem.ShellFolder,
// child,
// out relative);
// parentItem.AddItem(new ShellItem(br, parentItem, relative));
// }
// Marshal.FreeCoTaskMem(child);
// parentPIDL.Free();
// }
// }
// #endregion
// break;
//case ShellAPI.SHCNE.RENAMEITEM:
// #region Rename Item
// {
// if (!PIDL.IsEmpty(shNotify.dwItem1) && !PIDL.IsEmpty(shNotify.dwItem2))
// {
// ShellItem item = br.GetShellItem(new PIDL(shNotify.dwItem1, true));
// if (item != null)
// item.Update(shNotify.dwItem2, ShellItemUpdateType.Renamed);
// }
// }
// #endregion
// break;
//case ShellAPI.SHCNE.DELETE:
// #region Delete Item
// {
// if (!PIDL.IsEmpty(shNotify.dwItem1))
// {
// IntPtr parent, child;
// PIDL.SplitPidl(shNotify.dwItem1, out parent, out child);
// PIDL parentPIDL = new PIDL(parent, false);
// ShellItem parentItem = br.GetShellItem(parentPIDL);
// if (parentItem != null && parentItem.SubFiles.Contains(child))
// parentItem.RemoveItem(parentItem.SubFiles[child]);
// Marshal.FreeCoTaskMem(child);
// parentPIDL.Free();
// }
// }
// #endregion
// break;
//case ShellAPI.SHCNE.UPDATEITEM:
// #region Update Item
// {
// if (!PIDL.IsEmpty(shNotify.dwItem1))
// {
// ShellItem item = br.GetShellItem(new PIDL(shNotify.dwItem1, true));
// if (item != null)
// {
// Console.Out.WriteLine("Item: {0}", item);
// item.Update(IntPtr.Zero, ShellItemUpdateType.Updated);
// item.Update(IntPtr.Zero, ShellItemUpdateType.IconChange);
// }
// }
// }
// #endregion
// break;
//#endregion
#region Folder Changes
case ShellAPI.SHCNE.MKDIR:
case ShellAPI.SHCNE.DRIVEADD:
case ShellAPI.SHCNE.DRIVEADDGUI:
#region Make Directory
{
if (!PIDL.IsEmpty(shNotify.dwItem1))
{
IntPtr parent, child, relative;
PIDL.SplitPidl(shNotify.dwItem1, out parent, out child);
PIDL parentPIDL = new PIDL(parent, false);
ShellItem parentItem = br.GetShellItem(parentPIDL);
if (parentItem != null && parentItem.FoldersExpanded && !parentItem.SubFolders.Contains(child))
{
ShellAPI.SHGetRealIDL(
parentItem.ShellFolder,
child,
out relative);
IntPtr shellFolderPtr;
if (parentItem.ShellFolder.BindToObject(
relative,
IntPtr.Zero,
ref ShellAPI.IID_IShellFolder,
out shellFolderPtr) == ShellAPI.S_OK)
{
parentItem.AddItem(new ShellItem(br, parentItem, relative, shellFolderPtr));
}
else
{
Marshal.FreeCoTaskMem(relative);
}
}
Marshal.FreeCoTaskMem(child);
//parentPIDL.Free();
}
}
#endregion
break;
case ShellAPI.SHCNE.RENAMEFOLDER:
//#region Rename Directory
//{
// if (!PIDL.IsEmpty(shNotify.dwItem1) && !PIDL.IsEmpty(shNotify.dwItem2))
// {
// ShellItem item = br.GetShellItem(new PIDL(shNotify.dwItem1, false));
// if (item != null)
// {
// //Console.Out.WriteLine("Update: {0}", item);
// item.Update(shNotify.dwItem2, ShellItemUpdateType.Renamed);
// }
// }
//}
//#endregion
break;
case ShellAPI.SHCNE.RMDIR:
case ShellAPI.SHCNE.DRIVEREMOVED:
//#region Remove Directory
//{
// if (!PIDL.IsEmpty(shNotify.dwItem1))
// {
// IntPtr parent, child;
// PIDL.SplitPidl(shNotify.dwItem1, out parent, out child);
// PIDL parentPIDL = new PIDL(parent, false);
// ShellItem parentItem = br.GetShellItem(parentPIDL);
// if (parentItem != null && parentItem.SubFolders.Contains(child))
// parentItem.RemoveItem(parentItem.SubFolders[child]);
// Marshal.FreeCoTaskMem(child);
// parentPIDL.Free();
// }
//}
//#endregion
break;
case ShellAPI.SHCNE.UPDATEDIR:
case ShellAPI.SHCNE.ATTRIBUTES:
#region Update Directory
{
if (!PIDL.IsEmpty(shNotify.dwItem1))
{
ShellItem item = br.GetShellItem(new PIDL(shNotify.dwItem1, true));
if (item != null)
{
item.Update(IntPtr.Zero, ShellItemUpdateType.Updated);
item.Update(IntPtr.Zero, ShellItemUpdateType.IconChange);
}
}
}
#endregion
break;
case ShellAPI.SHCNE.MEDIAINSERTED:
case ShellAPI.SHCNE.MEDIAREMOVED:
#region Media Change
{
if (!PIDL.IsEmpty(shNotify.dwItem1))
{
ShellItem item = br.GetShellItem(new PIDL(shNotify.dwItem1, true));
if (item != null)
{
item.Update(IntPtr.Zero, ShellItemUpdateType.MediaChange);
}
}
}
#endregion
break;
#endregion
#region Other Changes
case ShellAPI.SHCNE.ASSOCCHANGED:
break;
case ShellAPI.SHCNE.NETSHARE:
case ShellAPI.SHCNE.NETUNSHARE:
break;
case ShellAPI.SHCNE.UPDATEIMAGE:
UpdateRecycleBin();
break;
#endregion
}
}
base.WndProc(ref m);
}
