content/browser/device_orientation/motion.cc

   1 // Copyright (c) 2012 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 "content/browser/device_orientation/motion.h"
   6
   7 #include "content/common/device_motion_messages.h"
   8
   9 namespace content {
  10
  11 Motion::Motion()
  12     : can_provide_acceleration_x_(false),
  13       can_provide_acceleration_y_(false),
  14       can_provide_acceleration_z_(false),
  15       can_provide_acceleration_including_gravity_x_(false),
  16       can_provide_acceleration_including_gravity_y_(false),
  17       can_provide_acceleration_including_gravity_z_(false),
  18       can_provide_rotation_rate_alpha_(false),
  19       can_provide_rotation_rate_beta_(false),
  20       can_provide_rotation_rate_gamma_(false),
  21       can_provide_interval_(false) {
  22 }
  23
  24 Motion::~Motion() {
  25 }
  26
  27 IPC::Message* Motion::CreateIPCMessage(int render_view_id) const {
  28   DeviceMotionMsg_Updated_Params params;
  29
  30   params.can_provide_acceleration_x = can_provide_acceleration_x_;
  31   params.acceleration_x = acceleration_x_;
  32   params.can_provide_acceleration_y = can_provide_acceleration_y_;
  33   params.acceleration_y = acceleration_y_;
  34   params.can_provide_acceleration_z = can_provide_acceleration_z_;
  35   params.acceleration_z = acceleration_z_;
  36
  37   params.can_provide_acceleration_including_gravity_x =
  38       can_provide_acceleration_including_gravity_x_;
  39   params.acceleration_including_gravity_x = acceleration_including_gravity_x_;
  40   params.can_provide_acceleration_including_gravity_y =
  41       can_provide_acceleration_including_gravity_y_;
  42   params.acceleration_including_gravity_y = acceleration_including_gravity_y_;
  43   params.can_provide_acceleration_including_gravity_z =
  44       can_provide_acceleration_including_gravity_z_;
  45   params.acceleration_including_gravity_z = acceleration_including_gravity_z_;
  46
  47   params.can_provide_rotation_rate_alpha = can_provide_rotation_rate_alpha_;
  48   params.rotation_rate_alpha = rotation_rate_alpha_;
  49   params.can_provide_rotation_rate_beta = can_provide_rotation_rate_beta_;
  50   params.rotation_rate_beta = rotation_rate_beta_;
  51   params.can_provide_rotation_rate_gamma = can_provide_rotation_rate_gamma_;
  52   params.rotation_rate_gamma = rotation_rate_gamma_;
  53
  54   params.can_provide_interval = can_provide_interval_;
  55   params.interval = interval_;
  56
  57   return new DeviceMotionMsg_Updated(render_view_id, params);
  58 }
  59
  60 // Should always fire new motion events so that they occur at regular intervals.
  61 // The firing frequency is determined by the polling frequency in ProviderImpl.
  62 bool Motion::ShouldFireEvent(const DeviceData* old_data) const {
  63   return true;
  64 }
  65
  66 };  // namespace content