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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef EXTENSIONS_SHELL_BROWSER_SHELL_NETWORK_CONTROLLER_CHROMEOS_H_
#define EXTENSIONS_SHELL_BROWSER_SHELL_NETWORK_CONTROLLER_CHROMEOS_H_
#include <memory>
#include <string>
#include "base/compiler_specific.h"
#include "base/memory/weak_ptr.h"
#include "base/timer/timer.h"
#include "chromeos/ash/components/network/network_state_handler_observer.h"
namespace extensions {
// Handles network-related tasks for app_shell on Chrome OS.
class ShellNetworkController : public ash::NetworkStateHandlerObserver {
public:
// This class must be instantiated after ash::DBusThreadManager and
// destroyed before it.
explicit ShellNetworkController(const std::string& preferred_network_name);
ShellNetworkController(const ShellNetworkController&) = delete;
ShellNetworkController& operator=(const ShellNetworkController&) = delete;
~ShellNetworkController() override;
// ash::NetworkStateHandlerObserver overrides:
void NetworkListChanged() override;
void NetworkConnectionStateChanged(const ash::NetworkState* state) override;
// Control whether roaming is enabled for cellular network connections.
void SetCellularAllowRoaming(bool allow_roaming);
private:
// State of communication with the connection manager.
enum State {
// No in-progress requests.
STATE_IDLE = 0,
// Waiting for the result of an attempt to connect to the preferred network.
STATE_WAITING_FOR_PREFERRED_RESULT,
// Waiting for the result of an attempt to connect to a non-preferred
// network.
STATE_WAITING_FOR_NON_PREFERRED_RESULT,
};
// Returns the connected or connecting WiFi network or NULL if no network
// matches that description.
const ash::NetworkState* GetActiveWiFiNetwork();
// Controls whether scanning is performed periodically.
void SetScanningEnabled(bool enabled);
// Asks the connection manager to scan for networks.
void RequestScan();
// If not currently connected or connecting, chooses a wireless network and
// asks the connection manager to connect to it. Also switches to
// `preferred_network_name_` if possible.
void ConnectIfUnconnected();
// Handles a successful or failed connection attempt.
void HandleConnectionSuccess();
void HandleConnectionError(const std::string& error_name);
// Current status of communication with the ash::NetworkStateHandler.
// This is tracked to avoid sending duplicate requests before the handler has
// acknowledged the initial connection attempt.
State state_;
// Invokes RequestScan() periodically.
base::RepeatingTimer scan_timer_;
// Optionally-supplied name of the preferred network.
std::string preferred_network_name_;
// True if the preferred network is connected or connecting.
bool preferred_network_is_active_;
base::WeakPtrFactory<ShellNetworkController> weak_ptr_factory_{this};
};
} // namespace extensions
#endif // EXTENSIONS_SHELL_BROWSER_SHELL_NETWORK_CONTROLLER_CHROMEOS_H_
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