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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#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 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__
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