private void ConfigureMenuItems(ShellFolder folder, IntPtr contextMenu, ShellMenuCommandBuilder builder)
{
int numAdded = 0;
ShellNewMenus.Clear();
foreach (var command in builder.Commands)
{
if (command is ShellNewMenuCommand shellNewCommand)
{
shellNewCommand.AddSubMenu(folder, numAdded, ref contextMenu);
ShellNewMenus.Add(shellNewCommand);
}
else
{
Interop.AppendMenu(contextMenu, command.Flags, command.UID, command.Label);
}
numAdded++;
}
}
private uint ConfigureMenuItems(bool allFolders, IntPtr contextMenu, ShellMenuCommandBuilder builder)
{
uint numAdded = 0;
foreach (var command in builder.Commands)
{
if (allFolders || !command.FoldersOnly)
{
Interop.AppendMenu(contextMenu, command.Flags, command.UID, command.Label);
if (command.UID != 0 && command.UID == builder.DefaultItemUID)
{
Interop.SetMenuDefaultItem(contextMenu, command.UID, 0);
}
}
numAdded++;
}
return(numAdded);
}
private void SetupContextMenu(ShellFolder folder, ShellMenuCommandBuilder builder)
{
try
{
nativeMenuPtr = Interop.CreatePopupMenu();
ConfigureMenuItems(folder, nativeMenuPtr, builder);
ShowMenu(folder, nativeMenuPtr);
}
catch (Exception e)
{
ShellLogger.Error($"ShellContextMenu: Error building folder context menu: {e.Message}");
}
finally
{
FreeResources();
foreach (var subMenu in ShellNewMenus)
{
subMenu.FreeResources();
}
}
}
public ShellFolderContextMenu(ShellFolder folder, FolderItemSelectAction folderItemSelected, ShellMenuCommandBuilder builder)
{
if (folder == null)
{
return;
}
lock (IconHelper.ComLock)
{
x = Cursor.Position.X;
y = Cursor.Position.Y;
this.folderItemSelected = folderItemSelected;
SetupContextMenu(folder, builder);
}
}
private void SetupContextMenu(ShellItem[] files, ShellFolder parentFolder, IntPtr hwndOwner, bool isInteractive, bool canRename, ShellMenuCommandBuilder preBuilder, ShellMenuCommandBuilder postBuilder)
{
try
{
if (GetIContextMenu(files, parentFolder, hwndOwner, out iContextMenuPtr, out iContextMenu))
{
// get some properties about our file(s)
bool allFolders = ItemsAllFolders(files);
CMF flags = CMF.EXPLORE |
CMF.ITEMMENU |
((Control.ModifierKeys & Keys.Shift) != 0 ? CMF.EXTENDEDVERBS : 0);
if (canRename)
{
flags |= CMF.CANRENAME;
}
if (!isInteractive)
{
flags |= CMF.DEFAULTONLY;
}
nativeMenuPtr = Interop.CreatePopupMenu();
uint numPrepended = ConfigureMenuItems(allFolders, nativeMenuPtr, preBuilder);
iContextMenu.QueryContextMenu(
nativeMenuPtr,
numPrepended,
Interop.CMD_FIRST,
Interop.CMD_LAST,
flags);
ConfigureMenuItems(allFolders, nativeMenuPtr, postBuilder);
if (isInteractive)
{
if (Marshal.QueryInterface(iContextMenuPtr, ref Interop.IID_IContextMenu2,
out iContextMenu2Ptr) == NativeMethods.S_OK)
{
if (iContextMenu2Ptr != IntPtr.Zero)
{
try
{
iContextMenu2 =
(IContextMenu2)Marshal.GetTypedObjectForIUnknown(iContextMenu2Ptr, typeof(IContextMenu2));
}
catch (Exception e)
{
ShellLogger.Error($"ShellItemContextMenu: Error retrieving IContextMenu2 interface: {e.Message}");
}
}
}
if (Marshal.QueryInterface(iContextMenuPtr, ref Interop.IID_IContextMenu3,
out iContextMenu3Ptr) == NativeMethods.S_OK)
{
if (iContextMenu3Ptr != IntPtr.Zero)
{
try
{
iContextMenu3 =
(IContextMenu3)Marshal.GetTypedObjectForIUnknown(iContextMenu3Ptr, typeof(IContextMenu3));
}
catch (Exception e)
{
ShellLogger.Error($"ShellItemContextMenu: Error retrieving IContextMenu3 interface: {e.Message}");
}
}
}
ShowMenu(files, allFolders);
}
else
{
uint selected = Interop.GetMenuDefaultItem(nativeMenuPtr, 0, 0);
HandleMenuCommand(files, selected, allFolders);
}
}
else
{
ShellLogger.Error("ShellItemContextMenu: Error retrieving IContextMenu");
}
}
catch (Exception e)
{
ShellLogger.Error($"ShellItemContextMenu: Error building context menu: {e.Message}");
}
finally
{
FreeResources();
foreach (var subMenu in ShellNewMenus)
{
subMenu.FreeResources();
}
}
}
public ShellItemContextMenu(ShellItem[] files, ShellFolder parentFolder, IntPtr hwndOwner, ItemSelectAction itemSelected, bool isInteractive, bool canRename, ShellMenuCommandBuilder preBuilder, ShellMenuCommandBuilder postBuilder)
{
if (files == null || files.Length < 1)
{
return;
}
lock (IconHelper.ComLock)
{
x = Cursor.Position.X;
y = Cursor.Position.Y;
this.itemSelected = itemSelected;
SetupContextMenu(files, parentFolder, hwndOwner, isInteractive, canRename, preBuilder, postBuilder);
}
}
public ShellItemContextMenu(ShellItem[] files, ShellFolder parentFolder, IntPtr hwndOwner, ItemSelectAction itemSelected, bool isInteractive, ShellMenuCommandBuilder preBuilder, ShellMenuCommandBuilder postBuilder) : this(files, parentFolder, hwndOwner, itemSelected, isInteractive, true, preBuilder, postBuilder)
{
}