| OLD | NEW |
|---|
| (Empty) |
| 1 // Copyright 2014 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 "athena/screen/public/screen_manager.h" | |
| 6 #include "athena/system/orientation_controller.h" | |
| 7 #include "base/bind.h" | |
| 8 #include "base/files/file_path_watcher.h" | |
| 9 #include "base/files/file_util.h" | |
| 10 #include "base/message_loop/message_loop.h" | |
| 11 #include "base/task_runner.h" | |
| 12 #include "chromeos/accelerometer/accelerometer_reader.h" | |
| 13 | |
| 14 namespace athena { | |
| 15 | |
| 16 namespace { | |
| 17 | |
| 18 // Threshold after which to rotate in a given direction. | |
| 19 const int kGravityThreshold = 6.0f; | |
| 20 | |
| 21 } // namespace | |
| 22 | |
| 23 OrientationController::OrientationController() { | |
| 24 } | |
| 25 | |
| 26 void OrientationController::InitWith( | |
| 27 scoped_refptr<base::TaskRunner> blocking_task_runner) { | |
| 28 chromeos::AccelerometerReader::GetInstance()->Initialize( | |
| 29 blocking_task_runner); | |
| 30 chromeos::AccelerometerReader::GetInstance()->AddObserver(this); | |
| 31 } | |
| 32 | |
| 33 OrientationController::~OrientationController() { | |
| 34 } | |
| 35 | |
| 36 void OrientationController::Shutdown() { | |
| 37 chromeos::AccelerometerReader::GetInstance()->RemoveObserver(this); | |
| 38 } | |
| 39 | |
| 40 void OrientationController::OnAccelerometerUpdated( | |
| 41 const ui::AccelerometerUpdate& update) { | |
| 42 if (!update.has(ui::ACCELEROMETER_SOURCE_SCREEN)) | |
| 43 return; | |
| 44 | |
| 45 float gravity_x = update.get(ui::ACCELEROMETER_SOURCE_SCREEN).x(); | |
| 46 float gravity_y = update.get(ui::ACCELEROMETER_SOURCE_SCREEN).y(); | |
| 47 gfx::Display::Rotation rotation; | |
| 48 if (gravity_x < -kGravityThreshold) { | |
| 49 rotation = gfx::Display::ROTATE_270; | |
| 50 } else if (gravity_x > kGravityThreshold) { | |
| 51 rotation = gfx::Display::ROTATE_90; | |
| 52 } else if (gravity_y < -kGravityThreshold) { | |
| 53 rotation = gfx::Display::ROTATE_180; | |
| 54 } else if (gravity_y > kGravityThreshold) { | |
| 55 rotation = gfx::Display::ROTATE_0; | |
| 56 } else { | |
| 57 // No rotation as gravity threshold was not hit. | |
| 58 return; | |
| 59 } | |
| 60 | |
| 61 if (rotation == current_rotation_) | |
| 62 return; | |
| 63 | |
| 64 current_rotation_ = rotation; | |
| 65 ScreenManager::Get()->SetRotation(rotation); | |
| 66 } | |
| 67 | |
| 68 } // namespace athena | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 863033002:
Delete athena/ (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master