Cashew: track cellular service state.

src/device.h

+// Copyright (c) 2010 The Chromium OS 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 SRC_DEVICE_H_
+#define SRC_DEVICE_H_
+
+#include <string>
+
+#include <base/basictypes.h>  // NOLINT
+#include <dbus-c++/dbus.h>  // NOLINT
+
+#include "src/flimflam_device_client_glue.h"
+
+namespace cashew {
+
+// represents a cellular device and monitors Flimflam state for that device
+class Device : public org::chromium::flimflam::Device_proxy,
+               public DBus::IntrospectableProxy,
+               public DBus::ObjectProxy {
+  public:
+    Device(DBus::Connection& connection, const DBus::Path& path);  // NOLINT
+    virtual ~Device();
+
+    // get D-Bus path for this device
+    virtual const DBus::Path& GetPath() const;
+
+    // valid type values for this device
+    typedef enum {
+      kTypeUnknown = 0,
+      kTypeEthernet,
+      kTypeWifi,
+      kTypeWimax,
+      kTypeBluetooth,
+      kTypeGPS,
+      kTypeCellular,
+      kTypeVendor,
+    } Type;
+
+    // get type for this device
+    // NOTE: for now, should always be kTypeCellular
+    virtual Type GetType() const;
+
+    static const char* kCarrierUnknown;
+
+    // get cellular carrier for this device
+    // returns kCarrierUnknown if we don't know
+    virtual const std::string& GetCarrier() const;
+
+    // Flimflam Device D-Bus Proxy methods
+    virtual void PropertyChanged(const std::string& property_name,
+                                 const DBus::Variant& new_value);
+
+  private:
+    // D-Bus path for Flimflam device that we represent
+    // this is our unique identifier
+    const DBus::Path path_;
+
+    // device type
+    Type type_;
+
+    // cellular carrier
+    std::string carrier_;
+
+    // convert type string to Type enum value
+    Type TypeFromString(const std::string& type) const;
+
+    // we've received updated Cellular.Carrier info from Flimflam
+    void OnCarrierUpdate(const std::string& carrier);
+
+    // we've received updated Type info from Flimflam
+    void OnTypeUpdate(const std::string& type);
+
+    // get device properties from Flimflam
+    void GetDeviceProperties();
+
+    DISALLOW_COPY_AND_ASSIGN(Device);
+};
+
+}  // namespace cashew
+
+#endif  // SRC_DEVICE_H_