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| 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 // IPC messages for device orientation. | |
| 6 // Multiply-included message file, hence no include guard. | |
| 7 | |
| 8 #include "base/memory/shared_memory.h" | |
| 9 #include "ipc/ipc_message_macros.h" | |
| 10 | |
| 11 #define IPC_MESSAGE_START DeviceOrientationMsgStart | |
| 12 | |
| 13 // Asks the browser process to activate Device Orientation sensors if necessary. | |
| 14 IPC_MESSAGE_CONTROL0(DeviceOrientationHostMsg_StartPolling) | |
| 15 | |
| 16 // The browser process asynchronously returns the shared memory handle that will | |
| 17 // hold the data from the hardware sensors. | |
| 18 // See device_orientation_hardware_buffer.h for a description of how | |
| 19 // synchronization is handled. | |
| 20 IPC_MESSAGE_CONTROL1(DeviceOrientationMsg_DidStartPolling, | |
| 21 base::SharedMemoryHandle /* handle */) | |
| 22 | |
| 23 // Notifies the browser process that the renderer process is not using the | |
| 24 // Device Orientation data anymore. The number of Starts should match the | |
| 25 // number of Stops. | |
| 26 IPC_MESSAGE_CONTROL0(DeviceOrientationHostMsg_StopPolling) | |
| 27 | |
| 28 // Same as above except the messages relate to Absolute Device Orientation, | |
| 29 // where orientation is provided w.r.t. a predefined coordinate frame. | |
| 30 IPC_MESSAGE_CONTROL0(DeviceOrientationAbsoluteHostMsg_StartPolling) | |
| 31 IPC_MESSAGE_CONTROL1(DeviceOrientationAbsoluteMsg_DidStartPolling, | |
| 32 base::SharedMemoryHandle /* handle */) | |
| 33 IPC_MESSAGE_CONTROL0(DeviceOrientationAbsoluteHostMsg_StopPolling) | |
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