src/third_party/WebKit/Source/modules/geolocation/NavigatorGeolocation.cpp

   1 /*
   2  *  Copyright (C) 2000 Harri Porten (porten@kde.org)
   3  *  Copyright (c) 2000 Daniel Molkentin (molkentin@kde.org)
   4  *  Copyright (c) 2000 Stefan Schimanski (schimmi@kde.org)
   5  *  Copyright (C) 2003, 2004, 2005, 2006 Apple Computer, Inc.
   6  *  Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
   7  *
   8  *  This library is free software; you can redistribute it and/or
   9  *  modify it under the terms of the GNU Lesser General Public
  10  *  License as published by the Free Software Foundation; either
  11  *  version 2 of the License, or (at your option) any later version.
  12  *
  13  *  This library is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  *  Lesser General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU Lesser General Public
  19  *  License along with this library; if not, write to the Free Software
  20  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  21  */
  22
  23 #include "config.h"
  24 #include "modules/geolocation/NavigatorGeolocation.h"
  25
  26 #include "core/dom/Document.h"
  27 #include "core/frame/LocalFrame.h"
  28 #include "core/frame/Navigator.h"
  29 #include "modules/geolocation/Geolocation.h"
  30
  31 namespace WebCore {
  32
  33 NavigatorGeolocation::NavigatorGeolocation(LocalFrame* frame)
  34     : DOMWindowProperty(frame)
  35 {
  36 }
  37
  38 NavigatorGeolocation::~NavigatorGeolocation()
  39 {
  40 }
  41
  42 const char* NavigatorGeolocation::supplementName()
  43 {
  44     return "NavigatorGeolocation";
  45 }
  46
  47 NavigatorGeolocation& NavigatorGeolocation::from(Navigator& navigator)
  48 {
  49     NavigatorGeolocation* supplement = static_cast<NavigatorGeolocation*>(WillBeHeapSupplement<Navigator>::from(navigator, supplementName()));
  50     if (!supplement) {
  51         supplement = new NavigatorGeolocation(navigator.frame());
  52         provideTo(navigator, supplementName(), adoptPtrWillBeNoop(supplement));
  53     }
  54     return *supplement;
  55 }
  56
  57 Geolocation* NavigatorGeolocation::geolocation(Navigator& navigator)
  58 {
  59     return NavigatorGeolocation::from(navigator).geolocation();
  60 }
  61
  62 Geolocation* NavigatorGeolocation::geolocation() const
  63 {
  64     if (!m_geolocation && frame())
  65         m_geolocation = Geolocation::create(frame()->document());
  66     return m_geolocation.get();
  67 }
  68
  69 void NavigatorGeolocation::trace(Visitor* visitor)
  70 {
  71     visitor->trace(m_geolocation);
  72     WillBeHeapSupplement<Navigator>::trace(visitor);
  73 }
  74
  75 } // namespace WebCore