mojo/public/cpp/bindings/no_interface.h

   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 "mojo/public/cpp/bindings/message.h"
   9 #include "mojo/public/cpp/bindings/message_filter.h"
  10 #include "mojo/public/cpp/system/core.h"
  11
  12 namespace mojo {
  13
  14 // NoInterface is for use in cases when a non-existent or empty interface is
  15 // needed (e.g., when the Mojom "Peer" attribute is not present).
  16
  17 class NoInterfaceProxy;
  18 class NoInterfaceStub;
  19
  20 class NoInterface {
  21  public:
  22   static const char* Name_;
  23   typedef NoInterfaceProxy Proxy_;
  24   typedef NoInterfaceStub Stub_;
  25   typedef PassThroughFilter RequestValidator_;
  26   typedef PassThroughFilter ResponseValidator_;
  27   typedef NoInterface Client;
  28   virtual ~NoInterface() {}
  29 };
  30
  31 class NoInterfaceProxy : public NoInterface {
  32  public:
  33   explicit NoInterfaceProxy(MessageReceiver* receiver) {}
  34 };
  35
  36 class NoInterfaceStub : public MessageReceiverWithResponder {
  37  public:
  38   NoInterfaceStub() {}
  39   void set_sink(NoInterface* sink) {}
  40   NoInterface* sink() { return NULL; }
  41   virtual bool Accept(Message* message) MOJO_OVERRIDE;
  42   virtual bool AcceptWithResponder(Message* message, MessageReceiver* responder)
  43       MOJO_OVERRIDE;
  44 };
  45
  46
  47 // AnyInterface is for use in cases where any interface would do (e.g., see the
  48 // Shell::Connect method).
  49
  50 typedef NoInterface AnyInterface;
  51
  52 }  // namespace mojo
  53
  54 #endif  // MOJO_PUBLIC_CPP_BINDINGS_NO_INTERFACE_H_