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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_ASH_COMPONENTS_NETWORK_HOTSPOT_CONFIGURATION_HANDLER_H_
#define CHROMEOS_ASH_COMPONENTS_NETWORK_HOTSPOT_CONFIGURATION_HANDLER_H_
#include <optional>
#include "base/component_export.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "base/scoped_observation.h"
#include "base/values.h"
#include "chromeos/ash/components/dbus/shill/shill_property_changed_observer.h"
#include "chromeos/ash/components/login/login_state/login_state.h"
#include "chromeos/ash/services/hotspot_config/public/mojom/cros_hotspot_config.mojom.h"
namespace ash {
// This class caches hotspot configurations and implements methods to get and
// update the hotspot configurations.
class COMPONENT_EXPORT(CHROMEOS_NETWORK) HotspotConfigurationHandler
: public ShillPropertyChangedObserver,
public LoginState::Observer {
public:
class Observer : public base::CheckedObserver {
public:
~Observer() override = default;
// Invoked when hotspot config is changed.
virtual void OnHotspotConfigurationChanged() = 0;
};
HotspotConfigurationHandler();
HotspotConfigurationHandler(const HotspotConfigurationHandler&) = delete;
HotspotConfigurationHandler& operator=(const HotspotConfigurationHandler&) =
delete;
~HotspotConfigurationHandler() override;
void Init();
// Return the current hotspot configuration
hotspot_config::mojom::HotspotConfigPtr GetHotspotConfig() const;
// Return callback for the SetHotspotConfig method. |result| indicates
// the set configuration operation result.
using SetHotspotConfigCallback = base::OnceCallback<void(
hotspot_config::mojom::SetHotspotConfigResult result)>;
// Set hotspot configuration with given |config|. |callback| is called with
// the success result of SetHotspotConfig operation.
void SetHotspotConfig(hotspot_config::mojom::HotspotConfigPtr config,
SetHotspotConfigCallback callback);
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
bool HasObserver(Observer* observer) const;
private:
// ShillPropertyChangedObserver overrides
void OnPropertyChanged(const std::string& key,
const base::Value& value) override;
// LoginState::Observer
void LoggedInStateChanged() override;
// Notify observers that hotspot state or active client count was changed.
void NotifyHotspotConfigurationChanged();
// Update the cached hotspot_config_ with the tethering configuration
// from |manager_properties|, and then run the |callback|.
void UpdateHotspotConfigAndRunCallback(
SetHotspotConfigCallback callback,
std::optional<base::Value::Dict> manager_properties);
// Callback when the SetHotspotConfig operation succeeded.
void OnSetHotspotConfigSuccess(SetHotspotConfigCallback callback);
// Callback when the SetHotspotConfig operation failed.
void OnSetHotspotConfigFailure(SetHotspotConfigCallback callback,
const std::string& error_name,
const std::string& error_message);
std::optional<base::Value::Dict> hotspot_config_;
base::ObserverList<Observer> observer_list_;
base::WeakPtrFactory<HotspotConfigurationHandler> weak_ptr_factory_{this};
};
} // namespace ash
#endif // CHROMEOS_ASH_COMPONENTS_NETWORK_HOTSPOT_CONFIGURATION_HANDLER_H_
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