components/devtools_bridge/abstract_data_channel.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 COMPONENTS_DEVTOOLS_BRIDGE_ABSTRACT_DATA_CHANNEL_H_
   6 #define COMPONENTS_DEVTOOLS_BRIDGE_ABSTRACT_DATA_CHANNEL_H_
   7
   8 #include <string>
   9
  10 #include "base/callback.h"
  11 #include "base/memory/scoped_ptr.h"
  12
  13 namespace devtools_bridge {
  14
  15 /**
  16  * WebRTC DataChannel adapter for DevTools bridge. Not thread safe.
  17  */
  18 class AbstractDataChannel {
  19  public:
  20   AbstractDataChannel() {}
  21   virtual ~AbstractDataChannel() {}
  22
  23   /**
  24    * Called on WebRTC signaling thread.
  25    */
  26   class Observer {
  27    public:
  28     Observer() {}
  29     virtual ~Observer() {}
  30
  31     virtual void OnOpen() = 0;
  32     virtual void OnClose() = 0;
  33
  34     virtual void OnMessage(const void* data, size_t length) = 0;
  35
  36    private:
  37     DISALLOW_COPY_AND_ASSIGN(Observer);
  38   };
  39
  40   virtual void RegisterObserver(scoped_ptr<Observer> observer) = 0;
  41   virtual void UnregisterObserver() = 0;
  42
  43   virtual void SendBinaryMessage(void* data, size_t length) = 0;
  44   virtual void SendTextMessage(void* data, size_t length) = 0;
  45
  46   virtual void Close() = 0;
  47
  48  private:
  49   DISALLOW_COPY_AND_ASSIGN(AbstractDataChannel);
  50 };
  51
  52 }  // namespace devtools_bridge
  53
  54 #endif  // COMPONENTS_DEVTOOLS_BRIDGE_ABSTRACT_DATA_CHANNEL_H_