src/chrome/browser/chromeos/dbus/display_power_service_provider.cc

   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 #include "chrome/browser/chromeos/dbus/display_power_service_provider.h"
   6
   7 #include "ash/shell.h"
   8 #include "base/bind.h"
   9 #include "dbus/bus.h"
  10 #include "dbus/message.h"
  11 #include "third_party/cros_system_api/dbus/service_constants.h"
  12 #include "ui/display/chromeos/display_configurator.h"
  13 #include "ui/wm/core/user_activity_detector.h"
  14
  15 namespace chromeos {
  16
  17 DisplayPowerServiceProvider::DisplayPowerServiceProvider()
  18     : weak_ptr_factory_(this) {
  19 }
  20
  21 DisplayPowerServiceProvider::~DisplayPowerServiceProvider() {}
  22
  23 void DisplayPowerServiceProvider::Start(
  24     scoped_refptr<dbus::ExportedObject> exported_object) {
  25   exported_object->ExportMethod(
  26       kLibCrosServiceInterface,
  27       kSetDisplayPower,
  28       base::Bind(&DisplayPowerServiceProvider::SetDisplayPower,
  29                  weak_ptr_factory_.GetWeakPtr()),
  30       base::Bind(&DisplayPowerServiceProvider::OnExported,
  31                  weak_ptr_factory_.GetWeakPtr()));
  32   exported_object->ExportMethod(
  33       kLibCrosServiceInterface,
  34       kSetDisplaySoftwareDimming,
  35       base::Bind(&DisplayPowerServiceProvider::SetDisplaySoftwareDimming,
  36                  weak_ptr_factory_.GetWeakPtr()),
  37       base::Bind(&DisplayPowerServiceProvider::OnExported,
  38                  weak_ptr_factory_.GetWeakPtr()));
  39 }
  40
  41 void DisplayPowerServiceProvider::OnExported(const std::string& interface_name,
  42                                              const std::string& method_name,
  43                                              bool success) {
  44   if (!success) {
  45     LOG(ERROR) << "Failed to export " << interface_name << "."
  46                << method_name;
  47   }
  48 }
  49
  50 void DisplayPowerServiceProvider::SetDisplayPower(
  51     dbus::MethodCall* method_call,
  52     dbus::ExportedObject::ResponseSender response_sender) {
  53   dbus::MessageReader reader(method_call);
  54   int int_state = 0;
  55   if (reader.PopInt32(&int_state)) {
  56     // Turning displays off when the device becomes idle or on just before
  57     // we suspend may trigger a mouse move, which would then be incorrectly
  58     // reported as user activity.  Let the UserActivityDetector
  59     // know so that it can ignore such events.
  60     wm::UserActivityDetector::Get()->OnDisplayPowerChanging();
  61
  62     DisplayPowerState state = static_cast<DisplayPowerState>(int_state);
  63     ash::Shell::GetInstance()->display_configurator()->SetDisplayPower(
  64         state, ui::DisplayConfigurator::kSetDisplayPowerNoFlags);
  65   } else {
  66     LOG(ERROR) << "Unable to parse " << kSetDisplayPower << " request";
  67   }
  68
  69   response_sender.Run(dbus::Response::FromMethodCall(method_call));
  70 }
  71
  72 void DisplayPowerServiceProvider::SetDisplaySoftwareDimming(
  73     dbus::MethodCall* method_call,
  74     dbus::ExportedObject::ResponseSender response_sender) {
  75   dbus::MessageReader reader(method_call);
  76   bool dimmed = false;
  77   if (reader.PopBool(&dimmed)) {
  78     ash::Shell::GetInstance()->SetDimming(dimmed);
  79   } else {
  80     LOG(ERROR) << "Unable to parse " << kSetDisplaySoftwareDimming
  81                << " request";
  82   }
  83   response_sender.Run(dbus::Response::FromMethodCall(method_call));
  84 }
  85
  86 }  // namespace chromeos