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// Copyright (c) 2011 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 CONTENT_PPAPI_PLUGIN_PPAPI_THREAD_H_
#define CONTENT_PPAPI_PLUGIN_PPAPI_THREAD_H_
#pragma once
#include <map>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "base/process.h"
#include "base/scoped_native_library.h"
#include "build/build_config.h"
#include "content/common/child_thread.h"
#include "ppapi/c/pp_module.h"
#include "ppapi/c/trusted/ppp_broker.h"
#include "ppapi/proxy/plugin_dispatcher.h"
#include "ppapi/proxy/plugin_globals.h"
#include "ppapi/proxy/plugin_proxy_delegate.h"
class FilePath;
class PpapiWebKitPlatformSupportImpl;
namespace IPC {
struct ChannelHandle;
}
class PpapiThread : public ChildThread,
public ppapi::proxy::PluginDispatcher::PluginDelegate,
public ppapi::proxy::PluginProxyDelegate {
public:
explicit PpapiThread(bool is_broker);
virtual ~PpapiThread();
private:
// ChildThread overrides.
virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
// PluginDispatcher::PluginDelegate implementation.
virtual std::set<PP_Instance>* GetGloballySeenInstanceIDSet() OVERRIDE;
virtual base::MessageLoopProxy* GetIPCMessageLoop() OVERRIDE;
virtual base::WaitableEvent* GetShutdownEvent() OVERRIDE;
virtual uint32 Register(
ppapi::proxy::PluginDispatcher* plugin_dispatcher) OVERRIDE;
virtual void Unregister(uint32 plugin_dispatcher_id) OVERRIDE;
// PluginProxyDelegate.
virtual bool SendToBrowser(IPC::Message* msg) OVERRIDE;
virtual void PreCacheFont(const void* logfontw) OVERRIDE;
// Message handlers.
void OnMsgLoadPlugin(const FilePath& path);
void OnMsgCreateChannel(base::ProcessHandle host_process_handle,
int renderer_id);
void OnMsgSetNetworkState(bool online);
void OnPluginDispatcherMessageReceived(const IPC::Message& msg);
// Sets up the channel to the given renderer. On success, returns true and
// fills the given ChannelHandle with the information from the new channel.
bool SetupRendererChannel(base::ProcessHandle host_process_handle,
int renderer_id,
IPC::ChannelHandle* handle);
// True if running in a broker process rather than a normal plugin process.
bool is_broker_;
base::ScopedNativeLibrary library_;
// Global state tracking for the proxy.
ppapi::proxy::PluginGlobals plugin_globals_;
ppapi::proxy::Dispatcher::GetInterfaceFunc get_plugin_interface_;
// Callback to call when a new instance connects to the broker.
// Used only when is_broker_.
PP_ConnectInstance_Func connect_instance_func_;
// Local concept of the module ID. Some functions take this. It's necessary
// for the in-process PPAPI to handle this properly, but for proxied it's
// unnecessary. The proxy talking to multiple renderers means that each
// renderer has a different idea of what the module ID is for this plugin.
// To force people to "do the right thing" we generate a random module ID
// and pass it around as necessary.
PP_Module local_pp_module_;
// See Dispatcher::Delegate::GetGloballySeenInstanceIDSet.
std::set<PP_Instance> globally_seen_instance_ids_;
// The PluginDispatcher instances contained in the map are not owned by it.
std::map<uint32, ppapi::proxy::PluginDispatcher*> plugin_dispatchers_;
uint32 next_plugin_dispatcher_id_;
// The WebKitPlatformSupport implementation.
scoped_ptr<PpapiWebKitPlatformSupportImpl> webkit_platform_support_;
DISALLOW_IMPLICIT_CONSTRUCTORS(PpapiThread);
};
#endif // CONTENT_PPAPI_PLUGIN_PPAPI_THREAD_H_
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