Add NetworkDeviceHandler

chromeos/network/network_device_handler.h

+// 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.
+
+#ifndef CHROMEOS_NETWORK_NETWORK_DEVICE_HANDLER_H_
+#define CHROMEOS_NETWORK_NETWORK_DEVICE_HANDLER_H_
+
+#include <map>
+#include <set>
+#include <string>
+
+#include "base/memory/weak_ptr.h"
+#include "base/observer_list.h"
+#include "chromeos/chromeos_export.h"
+#include "chromeos/dbus/dbus_method_call_status.h"
+#include "chromeos/dbus/shill_property_changed_observer.h"
+#include "chromeos/network/network_util.h"  // WifiAccessPoint
+
+namespace base {
+class DictionaryValue;
+class ListValue;
+class Value;
+}
+
+namespace chromeos {
+
+class CHROMEOS_EXPORT NetworkDeviceHandler
+    : public ShillPropertyChangedObserver {
+ public:
+  struct Device {
+    Device();
+    ~Device();
+    std::string type;
+    bool powered;
+    bool scanning;
+    int scan_interval;
+    std::map<std::string, WifiAccessPoint> wifi_access_points;
+  };
+  typedef std::map<std::string, Device> DeviceMap;
+
+  class Observer {
+   public:
+    typedef NetworkDeviceHandler::DeviceMap DeviceMap;
+
+    // Called when devices are updated. Passes the updated map of devices.
+    virtual void NetworkDevicesUpdated(const DeviceMap& devices) = 0;
+
+   protected:
+    virtual ~Observer() {}
+  };
+
+  NetworkDeviceHandler();
+  virtual ~NetworkDeviceHandler();
+  void Init();
+
+  // Add/remove observers.
+  void AddObserver(Observer* observer);
+  void RemoveObserver(Observer* observer);
+
+  bool devices_ready() const { return devices_ready_; }
+  const DeviceMap& devices() const { return devices_; }
+
+  // ShillPropertyChangedObserver overrides
+  virtual void OnPropertyChanged(const std::string& key,
+                                 const base::Value& value) OVERRIDE;
+
+ private:
+  void ManagerPropertiesCallback(DBusMethodCallStatus call_status,
+                                 const base::DictionaryValue& properties);
+  void DevicePropertyChanged(const base::ListValue* devices);
+  void DevicePropertiesCallback(const std::string& device_path,
+                                DBusMethodCallStatus call_status,
+                                const base::DictionaryValue& properties);
+  void NetworkPropertiesCallback(const std::string& device_path,
+                                 const std::string& network_path,
+                                 DBusMethodCallStatus call_status,
+                                 const base::DictionaryValue& properties);
+  void DeviceNetworkReady(const std::string& device_path,
+                          const std::string& network_path);
+  void DeviceReady(const std::string& device_path);
+
+  // True when the device list is up to date.
+  bool devices_ready_;
+
+  // Map of Device structs, valid when |devices_ready_| is true.
+  DeviceMap devices_;
+
+  // Map of pending devices.
+  std::set<std::string> pending_device_paths_;
+
+  // Map of pending networks per device path.
+  std::map<std::string, std::set<std::string> > pending_network_paths_;
+
+  // Observer list
+  ObserverList<Observer> observers_;
+
+  // For Shill client callbacks
+  base::WeakPtrFactory<NetworkDeviceHandler> weak_ptr_factory_;
+};
+
+}  // namespace chromeos
+
+#endif  // CHROMEOS_NETWORK_NETWORK_DEVICE_HANDLER_H_