blob: d926312be1d007ebdc340d52f07143d03b64be04 [file] [log] [blame]
// Copyright (c) 2012 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 <vector>
#include "base/macros.h"
#include "base/timer/timer.h"
#include "chromeos/network/network_state_handler_observer.h"
namespace ash {
class TrayNetworkStateObserver : public chromeos::NetworkStateHandlerObserver {
class Delegate {
// Called when any interesting network changes occur. The frequency of this
// event is limited to kUpdateFrequencyMs.
virtual void NetworkStateChanged(bool notify_a11y) = 0;
virtual ~Delegate() {}
explicit TrayNetworkStateObserver(Delegate* delegate);
~TrayNetworkStateObserver() override;
// NetworkStateHandlerObserver
void NetworkListChanged() override;
void DeviceListChanged() override;
void ActiveNetworksChanged(const std::vector<const chromeos::NetworkState*>&
active_networks) override;
void NetworkPropertiesUpdated(const chromeos::NetworkState* network) override;
void SignalUpdate(bool notify_a11y);
void SendNetworkStateChanged(bool notify_a11y);
// Unowned Delegate pointer (must outlive this instance).
Delegate* delegate_;
// Frequency at which to push NetworkStateChanged updates. This avoids
// unnecessarily frequent UI updates (which can be expensive). We set this
// to 0 for tests to eliminate timing variance.
int update_frequency_;
// Timer used to limit the frequency of NetworkStateChanged updates.
base::OneShotTimer timer_;
// The previous state of the wifi network, used to immediately send
// NetworkStateChanged update when wifi changed from enabled->disabled.
bool wifi_enabled_ = false;
} // namespace ash