content/browser/renderer_host/java/java_bridge_channel_host.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 CONTENT_BROWSER_RENDERER_HOST_JAVA_JAVA_BRIDGE_CHANNEL_HOST_H_
   6 #define CONTENT_BROWSER_RENDERER_HOST_JAVA_JAVA_BRIDGE_CHANNEL_HOST_H_
   7
   8 #include "content/child/npapi/np_channel_base.h"
   9
  10 namespace content {
  11
  12 class JavaBridgeChannelHost : public NPChannelBase {
  13  public:
  14   static JavaBridgeChannelHost* GetJavaBridgeChannelHost(
  15       int renderer_id,
  16       base::MessageLoopProxy* ipc_message_loop);
  17
  18   // A threadsafe function to generate a unique route ID. Used by the
  19   // JavaBridgeDispatcherHost on the UI thread and this class on the Java
  20   // Bridge's background thread.
  21   static int ThreadsafeGenerateRouteID();
  22
  23   // NPChannelBase implementation:
  24   virtual int GenerateRouteID() OVERRIDE;
  25
  26   // NPChannelBase override:
  27   virtual bool Init(base::MessageLoopProxy* ipc_message_loop,
  28                     bool create_pipe_now,
  29                     base::WaitableEvent* shutdown_event) OVERRIDE;
  30
  31  protected:
  32   // NPChannelBase override:
  33   virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE;
  34
  35  private:
  36   JavaBridgeChannelHost() {}
  37   friend class base::RefCountedThreadSafe<JavaBridgeChannelHost>;
  38   virtual ~JavaBridgeChannelHost();
  39
  40   static NPChannelBase* ClassFactory() {
  41     return new JavaBridgeChannelHost();
  42   }
  43
  44   // Message handlers
  45   void OnGenerateRouteID(int* route_id);
  46
  47   DISALLOW_COPY_AND_ASSIGN(JavaBridgeChannelHost);
  48 };
  49
  50 }  // namespace content
  51
  52 #endif  // CONTENT_BROWSER_RENDERER_HOST_JAVA_JAVA_BRIDGE_CHANNEL_HOST_H_