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      1 /*
      2  * Copyright (C) 2010 Google 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  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "public/web/WebGeolocationPermissionRequestManager.h"
     28 
     29 #include "modules/geolocation/Geolocation.h"
     30 #include "public/web/WebGeolocationPermissionRequest.h"
     31 #include "wtf/HashMap.h"
     32 
     33 namespace blink {
     34 
     35 typedef PersistentHeapHashMap<Member<Geolocation>, int> GeolocationIdMap;
     36 typedef PersistentHeapHashMap<int, Member<Geolocation> > IdGeolocationMap;
     37 
     38 class WebGeolocationPermissionRequestManagerPrivate {
     39 public:
     40     GeolocationIdMap m_geolocationIdMap;
     41     IdGeolocationMap m_idGeolocationMap;
     42 };
     43 
     44 int WebGeolocationPermissionRequestManager::add(const WebGeolocationPermissionRequest& permissionRequest)
     45 {
     46     Geolocation* geolocation = permissionRequest.geolocation();
     47     ASSERT(!m_private->m_geolocationIdMap.contains(geolocation));
     48     static int lastId;
     49     int id = ++lastId;
     50     m_private->m_geolocationIdMap.add(geolocation, id);
     51     m_private->m_idGeolocationMap.add(id, geolocation);
     52     return id;
     53 }
     54 
     55 bool WebGeolocationPermissionRequestManager::remove(const WebGeolocationPermissionRequest& permissionRequest, int& id)
     56 {
     57     Geolocation* geolocation = permissionRequest.geolocation();
     58     GeolocationIdMap::iterator it = m_private->m_geolocationIdMap.find(geolocation);
     59     if (it == m_private->m_geolocationIdMap.end())
     60         return false;
     61     id = it->value;
     62     m_private->m_geolocationIdMap.remove(it);
     63     m_private->m_idGeolocationMap.remove(id);
     64     return true;
     65 }
     66 
     67 bool WebGeolocationPermissionRequestManager::remove(int id, WebGeolocationPermissionRequest& permissionRequest)
     68 {
     69     IdGeolocationMap::iterator it = m_private->m_idGeolocationMap.find(id);
     70     if (it == m_private->m_idGeolocationMap.end())
     71         return false;
     72     Geolocation* geolocation = it->value;
     73     permissionRequest = WebGeolocationPermissionRequest(geolocation);
     74     m_private->m_idGeolocationMap.remove(it);
     75     m_private->m_geolocationIdMap.remove(geolocation);
     76     return true;
     77 }
     78 
     79 void WebGeolocationPermissionRequestManager::init()
     80 {
     81     m_private.reset(new WebGeolocationPermissionRequestManagerPrivate);
     82 }
     83 
     84 void WebGeolocationPermissionRequestManager::reset()
     85 {
     86     m_private.reset(0);
     87 }
     88 
     89 } // namespace blink
     90