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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_THREAD_H_
#define CHROME_PLUGIN_PLUGIN_THREAD_H_
#include "base/thread.h"
#include "chrome/common/ipc_sync_channel.h"
#include "chrome/common/message_router.h"
#include "chrome/common/resource_dispatcher.h"
#include "chrome/plugin/plugin_channel.h"
class PluginProcess;
class NotificationService;
// The PluginThread class represents a background thread where plugin instances
// live. Communication occurs between WebPluginDelegateProxy in the renderer
// process and WebPluginDelegateStub in this thread through IPC messages.
class PluginThread : public IPC::Channel::Listener,
public IPC::Message::Sender,
public base::Thread {
public:
PluginThread(PluginProcess *process, const std::wstring& channel_name);
~PluginThread();
// IPC::Channel::Listener implementation:
virtual void OnMessageReceived(const IPC::Message& msg);
virtual void OnChannelError();
// IPC::Message::Sender implementation:
virtual bool Send(IPC::Message* msg);
// Returns the one plugin thread.
static PluginThread* GetPluginThread() { return plugin_thread_; }
// Returns the one true dispatcher.
ResourceDispatcher* resource_dispatcher() {
return resource_dispatcher_.get();
}
private:
// Thread implementation:
void Init();
void CleanUp();
void OnCreateChannel(int process_id, HANDLE renderer_handle);
void OnShutdownResponse(bool ok_to_shutdown);
void OnPluginMessage(const std::vector<uint8> &data);
void OnBrowserShutdown();
// The process that has created this thread
PluginProcess *plugin_process_;
// The message loop used to run tasks on the thread that started this thread.
MessageLoop* owner_loop_;
std::wstring channel_name_;
scoped_ptr<IPC::SyncChannel> channel_;
scoped_ptr<NotificationService> notification_service_;
// Handles resource loads for this view.
// NOTE: this object lives on the owner thread.
scoped_refptr<ResourceDispatcher> resource_dispatcher_;
// The plugin module which is preloaded in Init
HMODULE preloaded_plugin_module_;
// Points to the one PluginThread object in the process.
static PluginThread* plugin_thread_;
DISALLOW_EVIL_CONSTRUCTORS(PluginThread);
};
#endif // CHROME_PLUGIN_PLUGIN_THREAD_H_