public static void SetAppMenuItems(CommandManager manager, CommandEntrySet entrySet)
{
HIMenuItem mnu = HIToolbox.GetMenuItem((uint)CarbonCommandID.Hide);
bool firstTime = appMenu == IntPtr.Zero;
appMenu = mnu.MenuRef;
var existingitems = GetMenuCommandIDs(appMenu).ToList();
for (int i = existingitems.Count - 1; i >= 0; i--)
{
var item = new HIMenuItem(appMenu, (ushort)(i + 1));
//if first time, keep all the existing items except QuitAndCloseAllWindows
if (firstTime && existingitems [i] != (uint)CarbonCommandID.QuitAndCloseAllWindows)
{
//mark them so we can recognise and keep them in future
//HIToolbox.SetMenuItemReferenceConstant (item, uint.MaxValue);
continue;
}
// if it's not the first time, keep the original items we marked
if (!firstTime && HIToolbox.GetMenuItemReferenceConstant(item) == UInt32.MaxValue)
{
continue;
}
//remove everything else
HIToolbox.DeleteMenuItem(item);
existingitems.RemoveAt(i);
}
// Iterate backwards over the entries. For each one, try to find a matching built-in item. If successful,
// get all the items from that point to the last item that was not yet inserted, and insert them
// at that point.
var entries = entrySet.ToList();
int uninsertedCount = entries.Count;
for (int i = entries.Count - 1; i >= 0; i--)
{
var entry = entries [i];
if (entry.CommandId == null || entry.CommandId == Command.Separator)
{
continue;
}
var id = GetMacID(entry.CommandId);
//find an existing item
int match = existingitems.IndexOf(id);
if (match >= 0)
{
//if there are uninserted items *after* this one, insert them at this point
if ((uninsertedCount - i) > 0)
{
var items = entries.Skip(i + 1).Take(uninsertedCount - i - 2);
var insertionPoint = new HIMenuItem(appMenu, (ushort)(match + 1));
AddMenuItems(insertionPoint, items);
}
uninsertedCount = i;
}
}
// Finally, insert any remaining items at the beginning/top of the menu.
if (uninsertedCount > 0)
{
AddMenuItems(new HIMenuItem(appMenu, 0), entries.Take(uninsertedCount));
}
}