12a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Copyright (c) 2013 The Chromium Authors. All rights reserved. 22a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 32a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// found in the LICENSE file. 42a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 52a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#ifndef CHROMEOS_NETWORK_GEOLOCATION_HANDLER_H_ 62a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#define CHROMEOS_NETWORK_GEOLOCATION_HANDLER_H_ 72a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 82a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/memory/weak_ptr.h" 9eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch#include "base/time/time.h" 102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "chromeos/dbus/dbus_method_call_status.h" 112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "chromeos/dbus/shill_property_changed_observer.h" 1290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)#include "chromeos/network/network_handler.h" 132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "chromeos/network/network_util.h" 142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)namespace base { 162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class DictionaryValue; 172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)namespace chromeos { 202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// This class provices Shill Wifi Access Point data. It currently relies on 222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// polling because that is the usage model in content::WifiDataProvider. This 232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// class requests data asynchronously, returning the most recent available data. 242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// A typical usage pattern, assuming a wifi device is enabled, is: 252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Initialize(); // Makes an initial request 262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// GetWifiAccessPoints(); // returns true + inital data, requests update 272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// (Delay some amount of time, ~10s) 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// GetWifiAccessPoints(); // returns true + updated data, requests update 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// (Delay some amount of time after data changed, ~10s) 302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// GetWifiAccessPoints(); // returns true + same data, requests update 312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// (Delay some amount of time after data did not change, ~2 mins) 322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class CHROMEOS_EXPORT GeolocationHandler : public ShillPropertyChangedObserver { 342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) public: 352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual ~GeolocationHandler(); 362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // This sends a request for wifi access point data. If data is already 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // available, returns |true|, fills |access_points| with the latest access 392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // point data, and sets |age_ms| to the time since the last update in MS. 402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool GetWifiAccessPoints(WifiAccessPointVector* access_points, int64* age_ms); 412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool wifi_enabled() const { return wifi_enabled_; } 432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // ShillPropertyChangedObserver overrides 452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual void OnPropertyChanged(const std::string& key, 462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const base::Value& value) OVERRIDE; 472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) private: 4990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) friend class NetworkHandler; 502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) friend class GeolocationHandlerTest; 512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) GeolocationHandler(); 5290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void Init(); 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // ShillManagerClient callback 562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void ManagerPropertiesCallback(DBusMethodCallStatus call_status, 572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const base::DictionaryValue& properties); 582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Called from OnPropertyChanged or ManagerPropertiesCallback. 602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void HandlePropertyChanged(const std::string& key, const base::Value& value); 612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Asynchronously request wifi access points from Shill.Manager. 632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void RequestWifiAccessPoints(); 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Callback for receiving Geolocation data. 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void GeolocationCallback(DBusMethodCallStatus call_status, 672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const base::DictionaryValue& properties); 682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Wifi enabled state 702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool wifi_enabled_; 712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Cached wifi access points and update time 732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) WifiAccessPointVector wifi_access_points_; 742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::Time geolocation_received_time_; 752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // For Shill client callbacks 772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::WeakPtrFactory<GeolocationHandler> weak_ptr_factory_; 782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(GeolocationHandler); 802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} // namespace chromeos 832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#endif // CHROMEOS_NETWORK_GEOLOCATION_HANDLER_H_ 85