/// <summary>
/// This method receives WindowMessages. It will make the "Open With" and "Send To" work
/// by calling HandleMenuMsg and HandleMenuMsg2.
/// </summary>
/// <param name="m">the Message of the Browser's WndProc</param>
/// <returns>true if the message has been handled, false otherwise</returns>
protected override void WndProc(ref Message m)
{
if (iContextMenu != null &&
m.Msg == (int)NativeMethods.WM.MENUSELECT &&
((int)ShellFolders.HiWord(m.WParam) & (int)ShellFolders.MFT.SEPARATOR) == 0 &&
((int)ShellFolders.HiWord(m.WParam) & (int)ShellFolders.MFT.POPUP) == 0)
{
string info = string.Empty;
info = ShellFolders.GetCommandString(
iContextMenu,
(uint)ShellFolders.LoWord(m.WParam) - ShellFolders.CMD_FIRST,
false);
}
if (iContextMenu2 != null &&
(m.Msg == (int)NativeMethods.WM.INITMENUPOPUP ||
m.Msg == (int)NativeMethods.WM.MEASUREITEM ||
m.Msg == (int)NativeMethods.WM.DRAWITEM))
{
if (iContextMenu2.HandleMenuMsg(
(uint)m.Msg, m.WParam, m.LParam) == ShellFolders.S_OK)
{
return;
}
}
if (newContextMenu2 != null &&
((m.Msg == (int)NativeMethods.WM.INITMENUPOPUP && m.WParam == newSubmenuPtr) ||
m.Msg == (int)NativeMethods.WM.MEASUREITEM ||
m.Msg == (int)NativeMethods.WM.DRAWITEM))
{
if (newContextMenu2.HandleMenuMsg(
(uint)m.Msg, m.WParam, m.LParam) == ShellFolders.S_OK)
{
return;
}
}
if (iContextMenu3 != null &&
m.Msg == (int)NativeMethods.WM.MENUCHAR)
{
if (iContextMenu3.HandleMenuMsg2(
(uint)m.Msg, m.WParam, m.LParam, IntPtr.Zero) == ShellFolders.S_OK)
{
return;
}
}
if (newContextMenu3 != null &&
m.Msg == (int)NativeMethods.WM.MENUCHAR)
{
if (newContextMenu3.HandleMenuMsg2(
(uint)m.Msg, m.WParam, m.LParam, IntPtr.Zero) == ShellFolders.S_OK)
{
return;
}
}
base.WndProc(ref m);
}
public void ShowContextMenu()
{
IntPtr contextMenu = IntPtr.Zero,
iContextMenuPtr = IntPtr.Zero,
iContextMenuPtr2 = IntPtr.Zero,
iContextMenuPtr3 = IntPtr.Zero;
try
{
if (ShellFolders.GetIContextMenu(parentShellFolder, pidls, out iContextMenuPtr, out iContextMenu))
{
// get some properties about our file(s)
bool allFolders = true;
bool allInStacks = true;
foreach (SystemFile file in paths)
{
if (!file.IsDirectory)
{
allFolders = false;
}
else
{
bool contains = false;
foreach (SystemDirectory dir in StacksManager.StackLocations)
{
if (dir.Equals(file.FullName))
{
contains = true;
break;
}
}
if (!contains)
{
allInStacks = false;
}
}
}
contextMenu = ShellFolders.CreatePopupMenu();
uint numPrepended = prependItems(contextMenu, allFolders, allInStacks);
iContextMenu.QueryContextMenu(
contextMenu,
numPrepended,
ShellFolders.CMD_FIRST,
ShellFolders.CMD_LAST,
ShellFolders.CMF.EXPLORE |
ShellFolders.CMF.CANRENAME |
((Control.ModifierKeys & Keys.Shift) != 0 ? ShellFolders.CMF.EXTENDEDVERBS : 0));
appendItems(contextMenu, allFolders, allInStacks);
Marshal.QueryInterface(iContextMenuPtr, ref ShellFolders.IID_IContextMenu2, out iContextMenuPtr2);
Marshal.QueryInterface(iContextMenuPtr, ref ShellFolders.IID_IContextMenu3, out iContextMenuPtr3);
try
{
iContextMenu2 =
(IContextMenu2)Marshal.GetTypedObjectForIUnknown(iContextMenuPtr2, typeof(IContextMenu2));
iContextMenu3 =
(IContextMenu3)Marshal.GetTypedObjectForIUnknown(iContextMenuPtr3, typeof(IContextMenu3));
}
catch (Exception) { }
uint selected = ShellFolders.TrackPopupMenuEx(
contextMenu,
ShellFolders.TPM.RETURNCMD,
this.x,
this.y,
this.Handle,
IntPtr.Zero);
if (selected >= ShellFolders.CMD_FIRST)
{
string command = ShellFolders.GetCommandString(iContextMenu, selected - ShellFolders.CMD_FIRST, true);
// set action strings for us to use in our custom execution function
switch ((CairoContextMenuItem)selected)
{
case CairoContextMenuItem.AddToStacks:
command = "addStack";
break;
case CairoContextMenuItem.RemoveFromStacks:
command = "removeStack";
break;
case CairoContextMenuItem.OpenInNewWindow:
command = "openWithShell";
break;
default:
if (command == "open" && allFolders)
{
// suppress running system code
command = "openFolder";
}
else
{
ShellFolders.InvokeCommand(
iContextMenu,
selected - ShellFolders.CMD_FIRST,
parent,
new Point(this.x, this.y));
}
break;
}
if (this.itemSelected != null)
{
itemSelected(command, paths[0].FullName, sender);
}
}
}
else
{
CairoLogger.Instance.Debug("Error retrieving IContextMenu");
}
}
catch (Exception) { }
finally
{
if (iContextMenu != null)
{
Marshal.FinalReleaseComObject(iContextMenu);
iContextMenu = null;
}
if (iContextMenu2 != null)
{
Marshal.FinalReleaseComObject(iContextMenu2);
iContextMenu2 = null;
}
if (iContextMenu3 != null)
{
Marshal.FinalReleaseComObject(iContextMenu3);
iContextMenu3 = null;
}
if (parentShellFolder != null)
{
Marshal.FinalReleaseComObject(parentShellFolder);
parentShellFolder = null;
}
if (contextMenu != null)
{
ShellFolders.DestroyMenu(contextMenu);
}
if (iContextMenuPtr != IntPtr.Zero)
{
Marshal.Release(iContextMenuPtr);
}
if (iContextMenuPtr2 != IntPtr.Zero)
{
Marshal.Release(iContextMenuPtr2);
}
if (iContextMenuPtr3 != IntPtr.Zero)
{
Marshal.Release(iContextMenuPtr3);
}
for (int i = 0; i < pidls.Length; i++)
{
Marshal.FreeCoTaskMem(pidls[i]);
pidls[i] = IntPtr.Zero;
}
}
}
public void ShowContextMenu()
{
IntPtr contextMenu = IntPtr.Zero,
iContextMenuPtr = IntPtr.Zero,
iContextMenuPtr2 = IntPtr.Zero,
iContextMenuPtr3 = IntPtr.Zero;
try
{
if (ShellFolders.GetIContextMenu(parentShellFolder, pidls, out iContextMenuPtr, out iContextMenu))
{
contextMenu = ShellFolders.CreatePopupMenu();
iContextMenu.QueryContextMenu(
contextMenu,
0,
ShellFolders.CMD_FIRST,
ShellFolders.CMD_LAST,
ShellFolders.CMF.EXPLORE |
ShellFolders.CMF.CANRENAME |
((Control.ModifierKeys & Keys.Shift) != 0 ? ShellFolders.CMF.EXTENDEDVERBS : 0));
// add to stacks option for folders
if (Interop.Shell.Exists(paths[0]) && (File.GetAttributes(this.paths[0]) & FileAttributes.Directory) == FileAttributes.Directory)
{
ShellFolders.AppendMenu(contextMenu, ShellFolders.MFT.SEPARATOR, 1, string.Empty);
ShellFolders.AppendMenu(contextMenu, ShellFolders.MFT.BYCOMMAND, (int)CairoContextMenuItem.AddToStacks, Localization.DisplayString.sInterface_AddToStacks);
}
Marshal.QueryInterface(iContextMenuPtr, ref ShellFolders.IID_IContextMenu2, out iContextMenuPtr2);
Marshal.QueryInterface(iContextMenuPtr, ref ShellFolders.IID_IContextMenu3, out iContextMenuPtr3);
try
{
iContextMenu2 =
(IContextMenu2)Marshal.GetTypedObjectForIUnknown(iContextMenuPtr2, typeof(IContextMenu2));
iContextMenu3 =
(IContextMenu3)Marshal.GetTypedObjectForIUnknown(iContextMenuPtr3, typeof(IContextMenu3));
}
catch (Exception) { }
uint selected = ShellFolders.TrackPopupMenuEx(
contextMenu,
ShellFolders.TPM.RETURNCMD,
this.x,
this.y,
this.Handle,
IntPtr.Zero);
if (selected >= ShellFolders.CMD_FIRST)
{
string command = ShellFolders.GetCommandString(iContextMenu, selected - ShellFolders.CMD_FIRST, true);
if ((CairoContextMenuItem)selected == CairoContextMenuItem.AddToStacks)
{
command = "addStack";
}
else
{
ShellFolders.InvokeCommand(
iContextMenu,
selected - ShellFolders.CMD_FIRST,
parent,
new Point(this.x, this.y));
}
if (this.itemSelected != null)
{
itemSelected(command, paths[0], sender);
}
}
}
else
{
CairoLogger.Instance.Debug("Error retrieving IContextMenu");
}
}
catch (Exception) { }
finally
{
if (iContextMenu != null)
{
Marshal.FinalReleaseComObject(iContextMenu);
iContextMenu = null;
}
if (iContextMenu2 != null)
{
Marshal.FinalReleaseComObject(iContextMenu2);
iContextMenu2 = null;
}
if (iContextMenu3 != null)
{
Marshal.FinalReleaseComObject(iContextMenu3);
iContextMenu3 = null;
}
if (parentShellFolder != null)
{
Marshal.FinalReleaseComObject(parentShellFolder);
parentShellFolder = null;
}
if (contextMenu != null)
{
ShellFolders.DestroyMenu(contextMenu);
}
if (iContextMenuPtr != IntPtr.Zero)
{
Marshal.Release(iContextMenuPtr);
}
if (iContextMenuPtr2 != IntPtr.Zero)
{
Marshal.Release(iContextMenuPtr2);
}
if (iContextMenuPtr3 != IntPtr.Zero)
{
Marshal.Release(iContextMenuPtr3);
}
for (int i = 0; i < pidls.Length; i++)
{
Marshal.FreeCoTaskMem(pidls[i]);
pidls[i] = IntPtr.Zero;
}
}
}