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// 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 "base/bind.h"
#include "base/thread_task_runner_handle.h"
#include "chrome/browser/chromeos/extensions/file_manager/device_event_router.h"
#include "chrome/browser/chromeos/file_manager/volume_manager.h"
#include "content/public/browser/browser_thread.h"
namespace file_manager {
namespace {
namespace file_manager_private = extensions::api::file_manager_private;
using content::BrowserThread;
} // namespace
DeviceEventRouter::DeviceEventRouter()
: resume_time_delta_(base::TimeDelta::FromSeconds(10)),
startup_time_delta_(base::TimeDelta::FromSeconds(10)),
is_starting_up_(false),
is_resuming_(false),
weak_factory_(this) {
}
DeviceEventRouter::DeviceEventRouter(base::TimeDelta overriding_time_delta)
: resume_time_delta_(overriding_time_delta),
startup_time_delta_(overriding_time_delta),
is_starting_up_(false),
is_resuming_(false),
weak_factory_(this) {
}
DeviceEventRouter::~DeviceEventRouter() {
}
void DeviceEventRouter::Startup() {
is_starting_up_ = true;
base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
FROM_HERE,
base::Bind(&DeviceEventRouter::StartupDelayed,
weak_factory_.GetWeakPtr()),
startup_time_delta_);
}
void DeviceEventRouter::StartupDelayed() {
DCHECK(thread_checker_.CalledOnValidThread());
is_starting_up_ = false;
}
void DeviceEventRouter::OnDeviceAdded(const std::string& device_path) {
DCHECK(thread_checker_.CalledOnValidThread());
SetDeviceState(device_path, DEVICE_STATE_USUAL);
if (IsExternalStorageDisabled()) {
OnDeviceEvent(file_manager_private::DEVICE_EVENT_TYPE_DISABLED,
device_path);
return;
}
}
void DeviceEventRouter::OnDeviceRemoved(const std::string& device_path) {
DCHECK(thread_checker_.CalledOnValidThread());
SetDeviceState(device_path, DEVICE_STATE_USUAL);
OnDeviceEvent(file_manager_private::DEVICE_EVENT_TYPE_REMOVED, device_path);
}
void DeviceEventRouter::OnDiskAdded(
const chromeos::disks::DiskMountManager::Disk& disk,
bool mounting) {
// Do nothing.
}
void DeviceEventRouter::OnDiskRemoved(
const chromeos::disks::DiskMountManager::Disk& disk) {
DCHECK(thread_checker_.CalledOnValidThread());
if (is_resuming_ || is_starting_up_)
return;
const std::string& device_path = disk.system_path_prefix();
if (!disk.mount_path().empty() &&
GetDeviceState(device_path) != DEVICE_HARD_UNPLUGGED_AND_REPORTED) {
OnDeviceEvent(file_manager_private::DEVICE_EVENT_TYPE_HARD_UNPLUGGED,
device_path);
SetDeviceState(device_path, DEVICE_HARD_UNPLUGGED_AND_REPORTED);
}
}
void DeviceEventRouter::OnVolumeMounted(chromeos::MountError error_code,
const Volume& volume) {
DCHECK(thread_checker_.CalledOnValidThread());
const std::string& device_path = volume.system_path_prefix().AsUTF8Unsafe();
SetDeviceState(device_path, DEVICE_STATE_USUAL);
}
void DeviceEventRouter::OnVolumeUnmounted(chromeos::MountError error_code,
const Volume& volume) {
// Do nothing.
}
void DeviceEventRouter::OnFormatStarted(const std::string& device_path,
bool success) {
DCHECK(thread_checker_.CalledOnValidThread());
if (success) {
OnDeviceEvent(file_manager_private::DEVICE_EVENT_TYPE_FORMAT_START,
device_path);
} else {
OnDeviceEvent(file_manager_private::DEVICE_EVENT_TYPE_FORMAT_FAIL,
device_path);
}
}
void DeviceEventRouter::OnFormatCompleted(const std::string& device_path,
bool success) {
DCHECK(thread_checker_.CalledOnValidThread());
OnDeviceEvent(success ? file_manager_private::DEVICE_EVENT_TYPE_FORMAT_SUCCESS
: file_manager_private::DEVICE_EVENT_TYPE_FORMAT_FAIL,
device_path);
}
void DeviceEventRouter::SuspendImminent() {
DCHECK(thread_checker_.CalledOnValidThread());
is_resuming_ = true;
}
void DeviceEventRouter::SuspendDone(const base::TimeDelta& sleep_duration) {
DCHECK(thread_checker_.CalledOnValidThread());
base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
FROM_HERE,
base::Bind(&DeviceEventRouter::SuspendDoneDelayed,
weak_factory_.GetWeakPtr()),
resume_time_delta_);
}
void DeviceEventRouter::SuspendDoneDelayed() {
DCHECK(thread_checker_.CalledOnValidThread());
is_resuming_ = false;
}
DeviceState DeviceEventRouter::GetDeviceState(
const std::string& device_path) const {
const std::map<std::string, DeviceState>::const_iterator it =
device_states_.find(device_path);
return it != device_states_.end() ? it->second : DEVICE_STATE_USUAL;
}
void DeviceEventRouter::SetDeviceState(const std::string& device_path,
DeviceState state) {
if (state != DEVICE_STATE_USUAL) {
device_states_[device_path] = state;
} else {
const std::map<std::string, DeviceState>::iterator it =
device_states_.find(device_path);
if (it != device_states_.end())
device_states_.erase(it);
}
}
} // namespace file_manager
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