public static bool RegisterDelegate(string name, Delegate action)
{
if (name == null)
{
throw new ArgumentNullException("name");
}
if (action == null)
{
throw new ArgumentNullException("action");
}
CCommand existingCmd = FindCommand(name);
if (existingCmd != null)
{
CDelegateCommand delegateCmd = existingCmd as CDelegateCommand;
if (delegateCmd != null)
{
Log.w("Overriding command: {0}", name);
delegateCmd.ActionDelegate = action;
return(true);
}
Log.e("Another command with the same name exists: {0}", name);
return(false);
}
return(Register(new CDelegateCommand(name, action)));
}
public static bool UnregisterAll(object target)
{
return(target != null && Unregister(delegate(CCommand cmd)
{
CDelegateCommand delegateCmd = cmd as CDelegateCommand;
return delegateCmd != null && delegateCmd.ActionDelegate.Target == target;
}));
}
public static bool Unregister(Delegate del)
{
return(Unregister(delegate(CCommand cmd)
{
CDelegateCommand delegateCmd = cmd as CDelegateCommand;
return delegateCmd != null && delegateCmd.ActionDelegate == del;
}));
}