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      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     ash::Shell::GetInstance()->user_activity_detector()->
     61         OnDisplayPowerChanging();
     62 
     63     DisplayPowerState state = static_cast<DisplayPowerState>(int_state);
     64     ash::Shell::GetInstance()->display_configurator()->SetDisplayPower(
     65         state, ui::DisplayConfigurator::kSetDisplayPowerNoFlags);
     66   } else {
     67     LOG(ERROR) << "Unable to parse " << kSetDisplayPower << " request";
     68   }
     69 
     70   response_sender.Run(dbus::Response::FromMethodCall(method_call));
     71 }
     72 
     73 void DisplayPowerServiceProvider::SetDisplaySoftwareDimming(
     74     dbus::MethodCall* method_call,
     75     dbus::ExportedObject::ResponseSender response_sender) {
     76   dbus::MessageReader reader(method_call);
     77   bool dimmed = false;
     78   if (reader.PopBool(&dimmed)) {
     79     ash::Shell::GetInstance()->SetDimming(dimmed);
     80   } else {
     81     LOG(ERROR) << "Unable to parse " << kSetDisplaySoftwareDimming
     82                << " request";
     83   }
     84   response_sender.Run(dbus::Response::FromMethodCall(method_call));
     85 }
     86 
     87 }  // namespace chromeos
     88