chrome/browser/chromeos/dbus/display_power_service_provider.h

   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
  17 namespace dbus {
  18 class MethodCall;
  19 class Response;
  20 }
  21
  22 namespace 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.
  27 class 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_