/// <summary>
/// Creates a menu compatible with object <paramref name="o"/>. Returns null if no compatible menu exists.
/// Errors are reported to <see cref="IBasicActivateItems.GlobalErrorCheckNotifier"/> (if set up).
///
/// </summary>
/// <param name="o"></param>
/// <returns></returns>
public ContextMenuStrip GetMenuIfExists(object o)
{
try
{
if (o is ICollection many)
{
var menu = new RDMPContextMenuStrip(new RDMPContextMenuStripArgs(_activator, Tree, many), many);
var factory = new AtomicCommandUIFactory(_activator);
if (many.Cast <object>().All(d => d is IMapsDirectlyToDatabaseTable))
{
menu.Items.Add(factory.CreateMenuItem(new ExecuteCommandStartSession(_activator, many.Cast <IMapsDirectlyToDatabaseTable>().ToArray())));
menu.Items.Add(factory.CreateMenuItem(new ExecuteCommandAddToSession(_activator, many.Cast <IMapsDirectlyToDatabaseTable>().ToArray(), null)));
}
var cmdFactory = new AtomicCommandFactory(_activator);
foreach (var p in cmdFactory.CreateManyObjectCommands(many))
{
menu.Add(p);
}
MenuBuilt?.Invoke(this, new MenuBuiltEventArgs(menu, o));
return(menu);
}
if (o != null)
{
//is o masquerading as someone else?
IMasqueradeAs masquerader = o as IMasqueradeAs;
//if so this is who he is pretending to be
object masqueradingAs = null;
if (masquerader != null)
{
masqueradingAs = masquerader.MasqueradingAs(); //yes he is masquerading!
}
var menu = GetMenuWithCompatibleConstructorIfExists(o);
//If no menu takes the object o try checking the object it is masquerading as as a secondary preference
if (menu == null && masqueradingAs != null)
{
menu = GetMenuWithCompatibleConstructorIfExists(masqueradingAs, masquerader);
}
//found a menu with compatible constructor arguments
if (menu != null)
{
if (!Settings.AllowPinning)
{
var miPin = menu.Items.OfType <AtomicCommandMenuItem>().SingleOrDefault(mi => mi.Tag is ExecuteCommandPin);
if (miPin != null)
{
miPin.Enabled = false;
miPin.ToolTipText = "Pinning is disabled in this collection";
}
}
MenuBuilt?.Invoke(this, new MenuBuiltEventArgs(menu, o));
return(menu);
}
//no compatible menus so just return default menu
var defaultMenu = new RDMPContextMenuStrip(new RDMPContextMenuStripArgs(_activator, Tree, o), o);
defaultMenu.AddCommonMenuItems(this);
MenuBuilt?.Invoke(this, new MenuBuiltEventArgs(defaultMenu, o));
return(defaultMenu);
}
else
{
//it's a right click in whitespace (nothing right clicked)
AtomicCommandUIFactory factory = new AtomicCommandUIFactory(_activator);
if (WhitespaceRightClickMenuCommandsGetter != null)
{
var menu = factory.CreateMenu(_activator, Tree, _collection, WhitespaceRightClickMenuCommandsGetter(_activator));
menu.AddCommonMenuItems(this);
return(menu);
}
}
return(null);
}
catch (Exception ex)
{
if (_activator?.GlobalErrorCheckNotifier == null)
{
throw;
}
_activator.GlobalErrorCheckNotifier.OnCheckPerformed(new CheckEventArgs($"Failed to build menu for {o} of Type {o?.GetType()}", CheckResult.Fail, ex));
return(null);
}
}
