ppapi/host/instance_message_filter.h

   1 // Copyright (c) 2012 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 PPAPI_HOST_INSTANCE_MESSAGE_FILTER_H_
   6 #define PPAPI_HOST_INSTANCE_MESSAGE_FILTER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "ppapi/host/ppapi_host_export.h"
  10
  11 namespace IPC {
  12 class Message;
  13 }
  14
  15 namespace ppapi {
  16 namespace host {
  17
  18 class PpapiHost;
  19
  20 class PPAPI_HOST_EXPORT InstanceMessageFilter {
  21  public:
  22   explicit InstanceMessageFilter(PpapiHost* host);
  23   virtual ~InstanceMessageFilter();
  24
  25   // Processes an instance message from the plugin process. Returns true if the
  26   // message was handled. On false, the PpapiHost will forward the message to
  27   // the next filter.
  28   virtual bool OnInstanceMessageReceived(const IPC::Message& msg) = 0;
  29
  30   PpapiHost* host() { return host_; }
  31
  32  private:
  33   PpapiHost* host_;
  34
  35   DISALLOW_COPY_AND_ASSIGN(InstanceMessageFilter);
  36 };
  37
  38 }  // namespace host
  39 }  // namespace ppapi
  40
  41 #endif  // PPAPI_HOST_INSTANCE_MESSAGE_FILTER_H_