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// Copyright 2015 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 "device/usb/usb_service.h"
#include "base/at_exit.h"
#include "base/bind.h"
#include "build/build_config.h"
#include "components/device_event_log/device_event_log.h"
#include "device/usb/usb_device.h"
#if defined(OS_ANDROID)
#include "device/usb/usb_service_android.h"
#else
#include "device/usb/usb_service_impl.h"
#endif
namespace device {
UsbService::Observer::~Observer() {}
void UsbService::Observer::OnDeviceAdded(scoped_refptr<UsbDevice> device) {
}
void UsbService::Observer::OnDeviceRemoved(scoped_refptr<UsbDevice> device) {
}
void UsbService::Observer::OnDeviceRemovedCleanup(
scoped_refptr<UsbDevice> device) {
}
void UsbService::Observer::WillDestroyUsbService() {}
// static
scoped_ptr<UsbService> UsbService::Create(
scoped_refptr<base::SequencedTaskRunner> blocking_task_runner) {
#if defined(OS_ANDROID)
return make_scoped_ptr(new UsbServiceAndroid());
#else
return make_scoped_ptr(new UsbServiceImpl(blocking_task_runner));
#endif
}
UsbService::~UsbService() {
FOR_EACH_OBSERVER(Observer, observer_list_, WillDestroyUsbService());
}
UsbService::UsbService() {}
void UsbService::AddObserver(Observer* observer) {
DCHECK(CalledOnValidThread());
observer_list_.AddObserver(observer);
}
void UsbService::RemoveObserver(Observer* observer) {
DCHECK(CalledOnValidThread());
observer_list_.RemoveObserver(observer);
}
void UsbService::NotifyDeviceAdded(scoped_refptr<UsbDevice> device) {
DCHECK(CalledOnValidThread());
FOR_EACH_OBSERVER(Observer, observer_list_, OnDeviceAdded(device));
}
void UsbService::NotifyDeviceRemoved(scoped_refptr<UsbDevice> device) {
DCHECK(CalledOnValidThread());
FOR_EACH_OBSERVER(Observer, observer_list_, OnDeviceRemoved(device));
device->NotifyDeviceRemoved();
FOR_EACH_OBSERVER(Observer, observer_list_, OnDeviceRemovedCleanup(device));
}
} // namespace device
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