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// Copyright (c) 2010 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_BROWSER_AUTOMATION_EXTENSION_PORT_CONTAINER_H_
#define CHROME_BROWSER_AUTOMATION_EXTENSION_PORT_CONTAINER_H_
#pragma once
#include <string>
#include "base/basictypes.h"
#include "base/ref_counted.h"
#include "ipc/ipc_message.h"
class AutomationProvider;
class ExtensionMessageService;
class GURL;
class ListValue;
class RenderViewHost;
// This class represents an external port to an extension, opened
// through the automation interface.
class ExtensionPortContainer : public IPC::Message::Sender {
public:
// Intercepts and processes a message posted through the automation interface.
// Returns true if the message was intercepted.
static bool InterceptMessageFromExternalHost(const std::string& message,
const std::string& origin,
const std::string& target,
AutomationProvider* automation,
RenderViewHost *view_host,
int tab_handle);
ExtensionPortContainer(AutomationProvider* automation, int tab_handle);
~ExtensionPortContainer();
int port_id() const { return port_id_; }
void set_port_id(int port_id) { port_id_ = port_id; }
// IPC implementation.
virtual bool Send(IPC::Message* msg);
private:
// Posts a message to the external host.
bool PostMessageToExternalPort(const std::string& message);
// Posts a request response message to the external host.
bool PostResponseToExternalPort(const std::string& message);
// Forwards a message from the external port.
void PostMessageFromExternalPort(const std::string& message);
// Attempts to connect this instance to the extension id, sends
// a response to the connecting party.
// Returns true if the connection was successful.
bool Connect(const std::string &extension_id,
int process_id,
int routing_id,
int connection_id,
const std::string& channel_name,
const std::string& tab_json);
// Sends a connect response to the external port.
void SendConnectionResponse(int connection_id, int port_id);
void OnExtensionMessageInvoke(const std::string& extension_id,
const std::string& function_name,
const ListValue& args,
const GURL& event_url);
void OnExtensionHandleMessage(const std::string& message, int source_port_id);
void OnExtensionPortDisconnected(int source_port_id);
// Our automation provider.
AutomationProvider* automation_;
// The extension message service.
scoped_refptr<ExtensionMessageService> service_;
// Our assigned port id.
int port_id_;
// Handle to our associated tab.
int tab_handle_;
DISALLOW_COPY_AND_ASSIGN(ExtensionPortContainer);
};
#endif // CHROME_BROWSER_AUTOMATION_EXTENSION_PORT_CONTAINER_H_
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