| // 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 "content/browser/background_sync/background_sync_network_observer.h" |
| |
| #include "base/location.h" |
| #include "base/single_thread_task_runner.h" |
| #include "base/threading/thread_task_runner_handle.h" |
| #include "content/public/browser/browser_thread.h" |
| |
| namespace content { |
| |
| // static |
| bool BackgroundSyncNetworkObserver::ignore_network_change_notifier_ = false; |
| |
| // static |
| void BackgroundSyncNetworkObserver::SetIgnoreNetworkChangeNotifierForTests( |
| bool ignore) { |
| ignore_network_change_notifier_ = ignore; |
| } |
| |
| BackgroundSyncNetworkObserver::BackgroundSyncNetworkObserver( |
| const base::Closure& network_changed_callback) |
| : connection_type_(net::NetworkChangeNotifier::GetConnectionType()), |
| network_changed_callback_(network_changed_callback) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| |
| net::NetworkChangeNotifier::AddNetworkChangeObserver(this); |
| } |
| |
| BackgroundSyncNetworkObserver::~BackgroundSyncNetworkObserver() { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| |
| net::NetworkChangeNotifier::RemoveNetworkChangeObserver(this); |
| } |
| |
| bool BackgroundSyncNetworkObserver::NetworkSufficient( |
| SyncNetworkState network_state) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| |
| switch (network_state) { |
| case NETWORK_STATE_ANY: |
| return true; |
| case NETWORK_STATE_AVOID_CELLULAR: |
| // Note that this returns true for CONNECTION_UNKNOWN to avoid never |
| // firing. |
| return connection_type_ != net::NetworkChangeNotifier::CONNECTION_NONE && |
| !net::NetworkChangeNotifier::IsConnectionCellular( |
| connection_type_); |
| case NETWORK_STATE_ONLINE: |
| return connection_type_ != net::NetworkChangeNotifier::CONNECTION_NONE; |
| } |
| |
| NOTREACHED(); |
| return false; |
| } |
| |
| void BackgroundSyncNetworkObserver::OnNetworkChanged( |
| net::NetworkChangeNotifier::ConnectionType connection_type) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| |
| if (ignore_network_change_notifier_) |
| return; |
| NotifyManagerIfNetworkChanged(connection_type); |
| } |
| |
| void BackgroundSyncNetworkObserver::NotifyManagerIfNetworkChangedForTesting( |
| net::NetworkChangeNotifier::ConnectionType connection_type) { |
| NotifyManagerIfNetworkChanged(connection_type); |
| } |
| |
| void BackgroundSyncNetworkObserver::NotifyManagerIfNetworkChanged( |
| net::NetworkChangeNotifier::ConnectionType connection_type) { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| if (connection_type == connection_type_) |
| return; |
| |
| connection_type_ = connection_type; |
| NotifyNetworkChanged(); |
| } |
| |
| void BackgroundSyncNetworkObserver::NotifyNetworkChanged() { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| |
| base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, |
| network_changed_callback_); |
| } |
| |
| } // namespace content |