content/common/device_orientation_messages.h

   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 // IPC messages for device orientation.
   6 // Multiply-included message file, hence no include guard.
   7
   8 #include "ipc/ipc_message_macros.h"
   9
  10 #define IPC_MESSAGE_START DeviceOrientationMsgStart
  11
  12 IPC_STRUCT_BEGIN(DeviceOrientationMsg_Updated_Params)
  13   // These fields have the same meaning as in content::Orientation.
  14   IPC_STRUCT_MEMBER(bool, can_provide_alpha)
  15   IPC_STRUCT_MEMBER(double, alpha)
  16   IPC_STRUCT_MEMBER(bool, can_provide_beta)
  17   IPC_STRUCT_MEMBER(double, beta)
  18   IPC_STRUCT_MEMBER(bool, can_provide_gamma)
  19   IPC_STRUCT_MEMBER(double, gamma)
  20   IPC_STRUCT_MEMBER(bool, can_provide_absolute)
  21   IPC_STRUCT_MEMBER(bool, absolute)
  22 IPC_STRUCT_END()
  23
  24 // Messages sent from the browser to the renderer.
  25
  26 // Notification that the device's orientation has changed.
  27 IPC_MESSAGE_ROUTED1(DeviceOrientationMsg_Updated,
  28                     DeviceOrientationMsg_Updated_Params)
  29
  30 // Messages sent from the renderer to the browser.
  31
  32 // A RenderView requests to start receiving device orientation updates.
  33 IPC_MESSAGE_CONTROL1(DeviceOrientationHostMsg_StartUpdating,
  34                      int /* render_view_id */)
  35
  36 // A RenderView requests to stop receiving device orientation updates.
  37 IPC_MESSAGE_CONTROL1(DeviceOrientationHostMsg_StopUpdating,
  38                      int /* render_view_id */)