public void Bind(MethodBase method, object instance = null)
{
if (method == null)
{
throw new ArgumentNullException(nameof(method));
}
if (!method.IsStatic && instance == null)
{
throw new ArgumentNullException(nameof(instance));
}
CommandAttribute[] attributes = GetCommandInfo(method);
if (attributes == null || attributes.Length == 0)
{
return;
}
for (int i = 0; i < attributes.Length; i++)
{
CommandAttribute attribute = attributes[i];
if (string.IsNullOrWhiteSpace(attribute.Name))
{
attribute.Name = method.Name;
}
if (string.IsNullOrWhiteSpace(attribute.Group))
{
attribute.Group = "global";
}
Command cmd = new Command(this, method, instance, attribute);
if (!commands.Contains(cmd))
{
commands.Add(cmd);
}
}
}
private CommandAttribute[] GetCommandInfo(MethodBase method)
{
CommandAttribute[] commands = method.GetCustomAttributes <CommandAttribute>(true).ToArray();
for (int i = 0; i < commands.Length; i++)
{
CommandAttribute c = commands[i];
if (string.IsNullOrWhiteSpace(c.Name))
{
c.Name = method.Name;
}
if (string.IsNullOrWhiteSpace(c.Group))
{
c.Group = "global";
}
}
return(commands);
}
public Command(ICommandHandler handler, MethodBase method, object instance, CommandAttribute attribute)
{
Handler = handler;
Name = attribute.Name.ToLowerInvariant();
Group = attribute.Group.ToLowerInvariant();
HelpText = attribute.HelpText;
FullName = $"{Group}.{Name}";
Method = method;
Instance = instance;
}
