1// Copyright (c) 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_CHROMEOS_DBUS_DISPLAY_POWER_SERVICE_PROVIDER_H_
6#define CHROME_BROWSER_CHROMEOS_DBUS_DISPLAY_POWER_SERVICE_PROVIDER_H_
7
8#include <string>
9
10#include "base/basictypes.h"
11#include "base/compiler_specific.h"
12#include "base/memory/ref_counted.h"
13#include "base/memory/weak_ptr.h"
14#include "chrome/browser/chromeos/dbus/cros_dbus_service.h"
15#include "dbus/exported_object.h"
16
17namespace dbus {
18class MethodCall;
19class Response;
20}
21
22namespace chromeos {
23
24// This class exports "SetDisplayPower" and "SetDisplaySoftwareDimming"
25// D-Bus methods that the power manager calls to instruct Chrome to turn
26// various displays on or off or dim them.
27class DisplayPowerServiceProvider
28    : public CrosDBusService::ServiceProviderInterface {
29 public:
30  DisplayPowerServiceProvider();
31  virtual ~DisplayPowerServiceProvider();
32
33  // CrosDBusService::ServiceProviderInterface overrides:
34  virtual void Start(
35      scoped_refptr<dbus::ExportedObject> exported_object) OVERRIDE;
36
37 private:
38  // Called from ExportedObject when a handler is exported as a D-Bus
39  // method or failed to be exported.
40  void OnExported(const std::string& interface_name,
41                  const std::string& method_name,
42                  bool success);
43
44  // Called on UI thread in response to D-Bus requests.
45  void SetDisplayPower(dbus::MethodCall* method_call,
46                       dbus::ExportedObject::ResponseSender response_sender);
47  void SetDisplaySoftwareDimming(
48      dbus::MethodCall* method_call,
49      dbus::ExportedObject::ResponseSender response_sender);
50
51  // Keep this last so that all weak pointers will be invalidated at the
52  // beginning of destruction.
53  base::WeakPtrFactory<DisplayPowerServiceProvider> weak_ptr_factory_;
54
55  DISALLOW_COPY_AND_ASSIGN(DisplayPowerServiceProvider);
56};
57
58}  // namespace chromeos
59
60#endif  // CHROME_BROWSER_CHROMEOS_DBUS_DISPLAY_POWER_SERVICE_PROVIDER_H_
61