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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 using namespace WebCore;
     36 
     37 typedef PersistentHeapHashMap<Member<Geolocation>, int> GeolocationIdMap;
     38 typedef PersistentHeapHashMap<int, Member<Geolocation> > IdGeolocationMap;
     39 
     40 class WebGeolocationPermissionRequestManagerPrivate {
     41 public:
     42     GeolocationIdMap m_geolocationIdMap;
     43     IdGeolocationMap m_idGeolocationMap;
     44 };
     45 
     46 int WebGeolocationPermissionRequestManager::add(const blink::WebGeolocationPermissionRequest& permissionRequest)
     47 {
     48     Geolocation* geolocation = permissionRequest.geolocation();
     49     ASSERT(!m_private->m_geolocationIdMap.contains(geolocation));
     50     static int lastId;
     51     int id = ++lastId;
     52     m_private->m_geolocationIdMap.add(geolocation, id);
     53     m_private->m_idGeolocationMap.add(id, geolocation);
     54     return id;
     55 }
     56 
     57 bool WebGeolocationPermissionRequestManager::remove(const blink::WebGeolocationPermissionRequest& permissionRequest, int& id)
     58 {
     59     Geolocation* geolocation = permissionRequest.geolocation();
     60     GeolocationIdMap::iterator it = m_private->m_geolocationIdMap.find(geolocation);
     61     if (it == m_private->m_geolocationIdMap.end())
     62         return false;
     63     id = it->value;
     64     m_private->m_geolocationIdMap.remove(it);
     65     m_private->m_idGeolocationMap.remove(id);
     66     return true;
     67 }
     68 
     69 bool WebGeolocationPermissionRequestManager::remove(int id, blink::WebGeolocationPermissionRequest& permissionRequest)
     70 {
     71     IdGeolocationMap::iterator it = m_private->m_idGeolocationMap.find(id);
     72     if (it == m_private->m_idGeolocationMap.end())
     73         return false;
     74     Geolocation* geolocation = it->value;
     75     permissionRequest = WebGeolocationPermissionRequest(geolocation);
     76     m_private->m_idGeolocationMap.remove(it);
     77     m_private->m_geolocationIdMap.remove(geolocation);
     78     return true;
     79 }
     80 
     81 void WebGeolocationPermissionRequestManager::init()
     82 {
     83     m_private.reset(new WebGeolocationPermissionRequestManagerPrivate);
     84 }
     85 
     86 void WebGeolocationPermissionRequestManager::reset()
     87 {
     88     m_private.reset(0);
     89 }
     90 
     91 } // namespace blink
     92