Home | History | Annotate | Download | only in page 
      1 /*
      2  * Copyright (C) 2009 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "GeolocationController.h"
     28 
     29 #if ENABLE(CLIENT_BASED_GEOLOCATION)
     30 
     31 #include "GeolocationControllerClient.h"
     32 
     33 namespace WebCore {
     34 
     35 GeolocationController::GeolocationController(Page* page, GeolocationControllerClient* client)
     36     : m_page(page)
     37     , m_client(client)
     38 {
     39 }
     40 
     41 GeolocationController::~GeolocationController()
     42 {
     43     if (m_client)
     44         m_client->geolocationDestroyed();
     45 }
     46 
     47 void GeolocationController::addObserver(Geolocation* observer)
     48 {
     49     ASSERT(!m_observers.contains(observer));
     50 
     51     bool wasEmpty = m_observers.isEmpty();
     52     m_observers.add(observer);
     53     if (wasEmpty && m_client)
     54         m_client->startUpdating();
     55 }
     56 
     57 void GeolocationController::removeObserver(Geolocation* observer)
     58 {
     59     if (!m_observers.contains(observer))
     60         return;
     61 
     62     m_observers.remove(observer);
     63     if (m_observers.isEmpty() && m_client)
     64         m_client->stopUpdating();
     65 }
     66 
     67 void GeolocationController::positionChanged(GeolocationPosition* position)
     68 {
     69     Vector<RefPtr<Geolocation> > observersVector;
     70     copyToVector(m_observers, observersVector);
     71     for (size_t i = 0; i < observersVector.size(); ++i)
     72         observersVector[i]->setPosition(position);
     73 }
     74 
     75 void GeolocationController::errorOccurred(GeolocationError* error)
     76 {
     77     Vector<RefPtr<Geolocation> > observersVector;
     78     copyToVector(m_observers, observersVector);
     79     for (size_t i = 0; i < observersVector.size(); ++i)
     80         observersVector[i]->setError(error);
     81 }
     82 
     83 GeolocationPosition* GeolocationController::lastPosition()
     84 {
     85     if (!m_client)
     86         return 0;
     87 
     88     return m_client->lastPosition();
     89 }
     90 
     91 } // namespace WebCore
     92 
     93 #endif // ENABLE(CLIENT_BASED_GEOLOCATION)
     94