blob: 797b3eade2c87a09eb35af5a629a42c723616fef [file] [log] [blame]
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/device_sensors/device_light_message_filter.h"
#include "content/browser/device_sensors/device_inertial_sensor_service.h"
#include "content/common/device_sensors/device_light_messages.h"
namespace content {
DeviceLightMessageFilter::DeviceLightMessageFilter()
: BrowserMessageFilter(DeviceLightMsgStart), is_started_(false) {
}
DeviceLightMessageFilter::~DeviceLightMessageFilter() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
if (is_started_) {
DeviceInertialSensorService::GetInstance()->RemoveConsumer(
CONSUMER_TYPE_LIGHT);
}
}
bool DeviceLightMessageFilter::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(DeviceLightMessageFilter, message)
IPC_MESSAGE_HANDLER(DeviceLightHostMsg_StartPolling,
OnDeviceLightStartPolling)
IPC_MESSAGE_HANDLER(DeviceLightHostMsg_StopPolling, OnDeviceLightStopPolling)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void DeviceLightMessageFilter::OnDeviceLightStartPolling() {
DCHECK(!is_started_);
if (is_started_)
return;
is_started_ = true;
DeviceInertialSensorService::GetInstance()->AddConsumer(CONSUMER_TYPE_LIGHT);
DidStartDeviceLightPolling();
}
void DeviceLightMessageFilter::OnDeviceLightStopPolling() {
DCHECK(is_started_);
if (!is_started_)
return;
is_started_ = false;
DeviceInertialSensorService::GetInstance()->RemoveConsumer(
CONSUMER_TYPE_LIGHT);
}
void DeviceLightMessageFilter::DidStartDeviceLightPolling() {
Send(new DeviceLightMsg_DidStartPolling(
DeviceInertialSensorService::GetInstance()
->GetSharedMemoryHandleForProcess(CONSUMER_TYPE_LIGHT,
PeerHandle())));
}
} // namespace content