private ContextMenuStrip GetMenuWithCompatibleConstructorIfExists(object o, IMasqueradeAs oMasquerader = null)
{
RDMPContextMenuStripArgs args = new RDMPContextMenuStripArgs(_activator, Tree, o);
args.CurrentlyPinnedObject = CurrentlyPinned;
args.Masquerader = oMasquerader ?? o as IMasqueradeAs;
var objectConstructor = new ObjectConstructor();
Type oType = o.GetType();
//if we have encountered this object type before
if (_cachedMenuCompatibility.ContainsKey(oType))
{
Type compatibleMenu = _cachedMenuCompatibility[oType];
//we know there are no menus compatible with o
if (compatibleMenu == null)
{
return(null);
}
return(ConstructMenu(objectConstructor, _cachedMenuCompatibility[oType], args, o));
}
//now find the first RDMPContextMenuStrip with a compatible constructor
foreach (Type menuType in _activator.RepositoryLocator.CatalogueRepository.MEF.GetTypes <RDMPContextMenuStrip>())
{
if (menuType.IsAbstract || menuType.IsInterface || menuType == typeof(RDMPContextMenuStrip))
{
continue;
}
//try constructing menu with:
var menu = ConstructMenu(objectConstructor, menuType, args, o);
//find first menu that's compatible
if (menu != null)
{
if (!_cachedMenuCompatibility.ContainsKey(oType))
{
_cachedMenuCompatibility.Add(oType, menu.GetType());
}
return(menu);
}
}
//we know there are no menus compatible with this type
if (!_cachedMenuCompatibility.ContainsKey(oType))
{
_cachedMenuCompatibility.Add(oType, null);
}
//there are no derrived classes with compatible constructors
return(null);
}
private RDMPContextMenuStrip ConstructMenu(ObjectConstructor objectConstructor, Type type, RDMPContextMenuStripArgs args, object o)
{
//there is a compatible menu Type known
//parameter 1 must be args
//parameter 2 must be object compatible Type
var menu = (RDMPContextMenuStrip)objectConstructor.ConstructIfPossible(type, args, o);
if (menu != null)
{
menu.AddCommonMenuItems(this);
}
return(menu);
}
public ExecuteCommandShowKeywordHelp(IActivateItems activator, RDMPContextMenuStripArgs args) : base(activator)
{
_args = args;
}
public AllServersNodeMenu(RDMPContextMenuStripArgs args, AllServersNode o) : base(args, o)
{
Add(new ExecuteCommandCreateNewEmptyCatalogue(args.ItemActivator));
}
