| // Copyright 2014 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 GeoNotifier_h |
| #define GeoNotifier_h |
| |
| #include "modules/geolocation/PositionCallback.h" |
| #include "modules/geolocation/PositionErrorCallback.h" |
| #include "platform/Timer.h" |
| #include "platform/heap/Handle.h" |
| |
| namespace blink { |
| |
| class Geolocation; |
| class Geoposition; |
| class PositionError; |
| class PositionOptions; |
| |
| class GeoNotifier : public GarbageCollectedFinalized<GeoNotifier> { |
| public: |
| static GeoNotifier* create(Geolocation* geolocation, PassOwnPtr<PositionCallback> positionCallback, PassOwnPtr<PositionErrorCallback> positionErrorCallback, PositionOptions* options) |
| { |
| return new GeoNotifier(geolocation, positionCallback, positionErrorCallback, options); |
| } |
| void trace(Visitor*); |
| |
| PositionOptions* options() const { return m_options.get(); }; |
| |
| // Sets the given error as the fatal error if there isn't one yet. |
| // Starts the timer with an interval of 0. |
| void setFatalError(PositionError*); |
| |
| bool useCachedPosition() const { return m_useCachedPosition; } |
| |
| // Tells the notifier to use a cached position and starts its timer with |
| // an interval of 0. |
| void setUseCachedPosition(); |
| |
| void runSuccessCallback(Geoposition*); |
| void runErrorCallback(PositionError*); |
| |
| void startTimer(); |
| void stopTimer(); |
| |
| // Runs the error callback if there is a fatal error. Otherwise, if a |
| // cached position must be used, registers itself for receiving one. |
| // Otherwise, the notifier has expired, and its error callback is run. |
| void timerFired(Timer<GeoNotifier>*); |
| |
| private: |
| GeoNotifier(Geolocation*, PassOwnPtr<PositionCallback>, PassOwnPtr<PositionErrorCallback>, PositionOptions*); |
| |
| Member<Geolocation> m_geolocation; |
| OwnPtr<PositionCallback> m_successCallback; |
| OwnPtr<PositionErrorCallback> m_errorCallback; |
| Member<PositionOptions> m_options; |
| Timer<GeoNotifier> m_timer; |
| Member<PositionError> m_fatalError; |
| bool m_useCachedPosition; |
| }; |
| |
| } // namespace blink |
| |
| #endif // GeoNotifier_h |