Add more gears geolocaiton files into chromium: locaiton provider, network lo...

chrome/browser/geolocation/network_location_provider.h

+// Copyright 2008, Google Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+//  1. Redistributions of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//  2. Redistributions in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//  3. Neither the name of Google Inc. nor the names of its contributors may be
+//     used to endorse or promote products derived from this software without
+//     specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef GEARS_GEOLOCATION_NETWORK_LOCATION_PROVIDER_H__
+#define GEARS_GEOLOCATION_NETWORK_LOCATION_PROVIDER_H__
+
+// TODO(joth): port to chromium
+#if 0
+
+#include "gears/base/common/common.h"
+#include "gears/base/common/mutex.h"
+#include "gears/base/common/string16.h"
+#include "gears/base/common/thread.h"
+#include "gears/geolocation/device_data_provider.h"
+#include "gears/geolocation/location_provider.h"
+#include "gears/geolocation/network_location_request.h"
+
+// PositionCache is an implementation detail of NetworkLocationProvider.
+class PositionCache;
+
+class NetworkLocationProvider
+    : public LocationProviderBase,
+      public RadioDataProvider::ListenerInterface,
+      public WifiDataProvider::ListenerInterface,
+      public NetworkLocationRequest::ListenerInterface,
+      public Thread {
+ public:
+  NetworkLocationProvider(BrowsingContext *browsing_context,
+                          const std::string16 &url,
+                          const std::string16 &host_name,
+                          const std::string16 &language);
+  virtual ~NetworkLocationProvider();
+
+  // Override LocationProviderBase implementation.
+  virtual void RegisterListener(
+      LocationProviderBase::ListenerInterface *listener,
+      bool request_address);
+  virtual void UnregisterListener(
+    LocationProviderBase::ListenerInterface *listener);
+
+  // LocationProviderBase implementation
+  virtual void GetPosition(Position *position);
+
+ private:
+  // DeviceDataProvider::ListenerInterface implementation.
+  virtual void DeviceDataUpdateAvailable(RadioDataProvider *provider);
+  virtual void DeviceDataUpdateAvailable(WifiDataProvider *provider);
+
+  // NetworkLocationRequest::ListenerInterface implementation.
+  virtual void LocationResponseAvailable(const Position &position,
+                                         bool server_error,
+                                         const std::string16 &access_token);
+
+  // Thread implementation
+  virtual void Run();
+
+  // Internal helper used by worker thread to make a network request
+  bool MakeRequest();
+
+  // Internal helper used by DeviceDataUpdateAvailable
+  void DeviceDataUpdateAvailableImpl();
+
+  // The network location request object and the url and host name it will use.
+  NetworkLocationRequest *request_;
+  std::string16 url_;
+  std::string16 host_name_;
+
+  // The device data providers
+  RadioDataProvider *radio_data_provider_;
+  WifiDataProvider *wifi_data_provider_;
+
+  // The radio and wifi data, flags to indicate if each data set is complete,
+  // and their guarding mutex.
+  RadioData radio_data_;
+  WifiData wifi_data_;
+  bool is_radio_data_complete_;
+  bool is_wifi_data_complete_;
+  Mutex data_mutex_;
+
+  // The timestamp for the latest device data update.
+  int64 timestamp_;
+
+  // Parameters for the network request
+  bool request_address_;
+  bool request_address_from_last_request_;
+  std::string16 address_language_;
+
+  // The current best position estimate and its guarding mutex
+  Position position_;
+  Mutex position_mutex_;
+
+  // The event used to notify this object's (ie the network location provider)
+  // worker thread about changes in available data, the network request status
+  // and whether we're shutting down. The booleans are used to indicate what the
+  // event signals.
+  Event thread_notification_event_;
+  bool is_shutting_down_;
+  bool is_new_data_available_;
+  bool is_last_request_complete_;
+  bool is_new_listener_waiting_;
+
+  // When the last request did not request an address, this stores any new
+  // listeners which have been added and require an address to be requested.
+  typedef std::set<LocationProviderBase::ListenerInterface*> ListenerSet;
+  ListenerSet new_listeners_requiring_address_;
+  Mutex new_listeners_requiring_address_mutex_;
+
+  // The earliest timestamp at which the next request can be made, in
+  // milliseconds.
+  int64 earliest_next_request_time_;
+
+  BrowsingContext *browsing_context_;
+
+  // The cache of positions.
+  scoped_ptr<PositionCache> position_cache_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(NetworkLocationProvider);
+};
+
+#endif  // if 0
+
+#endif  // GEARS_GEOLOCATION_NETWORK_LOCATION_PROVIDER_H__