no_interface.h revision 0de6073388f4e2780db8536178b129cd8f6ab386 
1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef MOJO_PUBLIC_CPP_BINDINGS_NO_INTERFACE_H_
6#define MOJO_PUBLIC_CPP_BINDINGS_NO_INTERFACE_H_
7
8#include <assert.h>
9
10#include "mojo/public/cpp/bindings/message.h"
11#include "mojo/public/cpp/system/core.h"
12
13namespace mojo {
14
15// NoInterface is for use in cases when a non-existent or empty interface is
16// needed (e.g., when the Mojom "Peer" attribute is not present).
17
18class NoInterfaceProxy;
19class NoInterfaceStub;
20
21class NoInterface {
22 public:
23  typedef NoInterfaceProxy Proxy_;
24  typedef NoInterfaceStub Stub_;
25  typedef NoInterface Client_;
26  virtual ~NoInterface() {}
27  virtual void SetClient(NoInterface* client) {}
28};
29
30class NoInterfaceProxy : public NoInterface {
31 public:
32  explicit NoInterfaceProxy(MessageReceiver* receiver) {}
33};
34
35class NoInterfaceStub : public MessageReceiver {
36 public:
37  NoInterfaceStub() {}
38  void set_sink(NoInterface* sink) {}
39  virtual bool Accept(Message* message) MOJO_OVERRIDE;
40  virtual bool AcceptWithResponder(Message* message, MessageReceiver* responder)
41      MOJO_OVERRIDE;
42};
43
44
45// AnyInterface is for use in cases where any interface would do (e.g., see the
46// Shell::Connect method).
47
48typedef NoInterface AnyInterface;
49
50}  // namespace mojo
51
52#endif  // MOJO_PUBLIC_CPP_BINDINGS_NO_INTERFACE_H_
53