src/chrome/browser/extensions/api/messaging/extension_message_port.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 CHROME_BROWSER_EXTENSIONS_API_MESSAGING_EXTENSION_MESSAGE_PORT_H_
   6 #define CHROME_BROWSER_EXTENSIONS_API_MESSAGING_EXTENSION_MESSAGE_PORT_H_
   7
   8 #include "chrome/browser/extensions/api/messaging/message_service.h"
   9
  10 class GURL;
  11
  12 namespace content {
  13 class RenderProcessHost;
  14 }  // namespace content
  15
  16 namespace extensions {
  17
  18 // A port that manages communication with an extension.
  19 class ExtensionMessagePort : public MessageService::MessagePort {
  20  public:
  21   ExtensionMessagePort(content::RenderProcessHost* process,
  22                        int routing_id,
  23                        const std::string& extension_id);
  24   virtual void DispatchOnConnect(
  25       int dest_port_id,
  26       const std::string& channel_name,
  27       const base::DictionaryValue& source_tab,
  28       const std::string& source_extension_id,
  29       const std::string& target_extension_id,
  30       const GURL& source_url,
  31       const std::string& tls_channel_id) OVERRIDE;
  32   virtual void DispatchOnDisconnect(int source_port_id,
  33                                     const std::string& error_message) OVERRIDE;
  34   virtual void DispatchOnMessage(const Message& message,
  35                                  int target_port_id) OVERRIDE;
  36   virtual void IncrementLazyKeepaliveCount() OVERRIDE;
  37   virtual void DecrementLazyKeepaliveCount() OVERRIDE;
  38   virtual content::RenderProcessHost* GetRenderProcessHost() OVERRIDE;
  39
  40  private:
  41   content::RenderProcessHost* process_;
  42   int routing_id_;
  43   std::string extension_id_;
  44   void* background_host_ptr_;  // used in IncrementLazyKeepaliveCount
  45 };
  46
  47 }  // namespace extensions
  48
  49 #endif  // CHROME_BROWSER_EXTENSIONS_API_MESSAGING_EXTENSION_MESSAGE_PORT_H_