chrome/renderer/plugin_channel_host.h


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// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_PLUGIN_PLUGIN_CHANNEL_HOST_H__
#define CHROME_PLUGIN_PLUGIN_CHANNEL_HOST_H__

#include "base/hash_tables.h"
#include "chrome/plugin/plugin_channel_base.h"

class IsListeningFilter;

// Encapsulates an IPC channel between the renderer and one plugin process.
// On the plugin side there's a corresponding PluginChannel.
class PluginChannelHost : public PluginChannelBase {
 public:
  static PluginChannelHost* GetPluginChannelHost(
      const std::wstring& channel_name, MessageLoop* ipc_message_loop);

  ~PluginChannelHost();

  virtual bool Init(MessageLoop* ipc_message_loop, bool create_pipe_now);

  int GenerateRouteID();

  void AddRoute(int route_id, IPC::Channel::Listener* listener, bool npobject);
  void RemoveRoute(int route_id);

  // IPC::Channel::Listener override
  void OnChannelError();

  static void SetListening(bool flag);

 private:
  // Called on the render thread
  PluginChannelHost();

  static PluginChannelBase* ClassFactory() { return new PluginChannelHost(); }

  // Keep track of all the registered WebPluginDelegeProxies to
  // inform about OnChannelError
  typedef base::hash_map<int, IPC::Channel::Listener*> ProxyMap;
  ProxyMap proxies_;

  // An IPC MessageFilter that can be told to filter out all messages. This is
  // used when the JS debugger is attached in order to avoid browser hangs.
  scoped_refptr<IsListeningFilter> is_listening_filter_;

  DISALLOW_EVIL_CONSTRUCTORS(PluginChannelHost);
};

#endif  // CHROME_PLUGIN_PLUGIN_CHANNEL_HOST_H__