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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_GPU_PROCESS_HOST_UI_SHIM_H_
#define CHROME_BROWSER_GPU_PROCESS_HOST_UI_SHIM_H_
#pragma once
// This class lives on the UI thread and supports classes like the
// BackingStoreProxy, which must live on the UI thread. The IO thread
// portion of this class, the GpuProcessHost, is responsible for
// shuttling messages between the browser and GPU processes.
#include "base/singleton.h"
#include "chrome/common/gpu_native_window_handle.h"
#include "chrome/common/message_router.h"
#include "ipc/ipc_channel.h"
#include "gfx/native_widget_types.h"
class GpuProcessHostUIShim : public IPC::Channel::Sender,
public IPC::Channel::Listener {
public:
// Getter for the singleton. This will return NULL on failure.
static GpuProcessHostUIShim* Get();
int32 GetNextRoutingId();
// Creates the new remote view and returns the routing ID for the view, or 0
// on failure.
int32 NewRenderWidgetHostView(GpuNativeWindowHandle parent);
// IPC::Channel::Sender implementation.
virtual bool Send(IPC::Message* msg);
// IPC::Channel::Listener implementation.
// The GpuProcessHost causes this to be called on the UI thread to
// dispatch the incoming messages from the GPU process, which are
// actually received on the IO thread.
virtual void OnMessageReceived(const IPC::Message& message);
// See documentation on MessageRouter for AddRoute and RemoveRoute
void AddRoute(int32 routing_id, IPC::Channel::Listener* listener);
void RemoveRoute(int32 routing_id);
// Sends a message to the browser process to collect the information from the
// graphics card.
void CollectGraphicsInfoAsynchronously();
private:
friend struct DefaultSingletonTraits<GpuProcessHostUIShim>;
GpuProcessHostUIShim();
virtual ~GpuProcessHostUIShim();
int last_routing_id_;
MessageRouter router_;
};
#endif // CHROME_BROWSER_GPU_PROCESS_HOST_UI_SHIM_H_
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