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// Copyright (c) 2010 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 "chrome/browser/chromeos/network_state_notifier.h"
#include "base/message_loop.h"
#include "base/time.h"
#include "chrome/browser/browser_thread.h"
#include "chrome/browser/chromeos/cros/cros_library.h"
#include "chrome/common/notification_service.h"
#include "chrome/common/notification_type.h"
namespace chromeos {
using base::Time;
using base::TimeDelta;
// static
NetworkStateNotifier* NetworkStateNotifier::Get() {
return Singleton<NetworkStateNotifier>::get();
}
// static
TimeDelta NetworkStateNotifier::GetOfflineDuration() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
// TODO(oshima): make this instance method so that
// we can mock this for ui_tests.
// http://crbug.com/4825 .
return base::Time::Now() - Get()->offline_start_time_;
}
NetworkStateNotifier::NetworkStateNotifier()
: ALLOW_THIS_IN_INITIALIZER_LIST(task_factory_(this)),
state_(RetrieveState()),
offline_start_time_(Time::Now()) {
// Note that this gets added as a NetworkManagerObserver
// in browser_init.cc
}
NetworkStateNotifier::~NetworkStateNotifier() {
// Let the NetworkManagerObserver leak to avoid a DCHECK
// failure in CommandLine::ForCurrentProcess.
// if (CrosLibrary::Get()->EnsureLoaded())
// CrosLibrary::Get()->GetNetworkLibrary()->
// RemoveNetworkManagerObserver(this);
}
void NetworkStateNotifier::OnNetworkManagerChanged(NetworkLibrary* cros) {
DCHECK(CrosLibrary::Get()->EnsureLoaded());
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
task_factory_.NewRunnableMethod(
&NetworkStateNotifier::UpdateNetworkState,
RetrieveState()));
}
void NetworkStateNotifier::UpdateNetworkState(
NetworkStateDetails::State new_state) {
DLOG(INFO) << "UpdateNetworkState: new="
<< new_state << ", old=" << state_;
if (state_ == NetworkStateDetails::CONNECTED &&
new_state != NetworkStateDetails::CONNECTED) {
offline_start_time_ = Time::Now();
}
state_ = new_state;
NetworkStateDetails details(state_);
NotificationService::current()->Notify(
NotificationType::NETWORK_STATE_CHANGED,
NotificationService::AllSources(),
Details<NetworkStateDetails>(&details));
};
// static
NetworkStateDetails::State NetworkStateNotifier::RetrieveState() {
// Running on desktop means always connected, for now.
if (!CrosLibrary::Get()->EnsureLoaded())
return NetworkStateDetails::CONNECTED;
NetworkLibrary* cros = CrosLibrary::Get()->GetNetworkLibrary();
if (cros->Connected()) {
return NetworkStateDetails::CONNECTED;
} else if (cros->Connecting()) {
return NetworkStateDetails::CONNECTING;
} else {
return NetworkStateDetails::DISCONNECTED;
}
}
} // namespace chromeos
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