chrome/browser/chromeos/system/device_change_handler.cc

   1 // Copyright 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/system/device_change_handler.h"
   6
   7 #include "chrome/browser/chromeos/system/input_device_settings.h"
   8
   9 namespace chromeos {
  10 namespace system {
  11
  12 DeviceChangeHandler::DeviceChangeHandler()
  13     : pointer_device_observer_(new PointerDeviceObserver) {
  14   pointer_device_observer_->AddObserver(this);
  15   pointer_device_observer_->Init();
  16
  17   // Apply settings on startup.
  18   TouchpadExists(true);
  19   MouseExists(true);
  20 }
  21
  22 DeviceChangeHandler::~DeviceChangeHandler() {
  23   pointer_device_observer_->RemoveObserver(this);
  24 }
  25
  26 // When we detect a touchpad is attached, apply touchpad settings that was
  27 // cached inside InputDeviceSettings.
  28 void DeviceChangeHandler::TouchpadExists(bool exists) {
  29   if (!exists)
  30     return;
  31   system::InputDeviceSettings::Get()->ReapplyTouchpadSettings();
  32 }
  33
  34 // When we detect a mouse is attached, apply mouse settings that was cached
  35 // inside InputDeviceSettings.
  36 void DeviceChangeHandler::MouseExists(bool exists) {
  37   if (!exists)
  38     return;
  39   system::InputDeviceSettings::Get()->ReapplyMouseSettings();
  40 }
  41
  42 }  // namespace system
  43 }  // namespace chromeos