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      1 /*
      2  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
      3  * Copyright (C) 2009, 2011 Google Inc. All Rights Reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      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 COMPUTER, INC. ``AS IS'' AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  *
     26  */
     27 
     28 #include "config.h"
     29 
     30 #include "modules/indexeddb/WorkerGlobalScopeIndexedDatabase.h"
     31 
     32 #include "core/dom/ExecutionContext.h"
     33 #include "modules/indexeddb/IDBFactory.h"
     34 #include "modules/indexeddb/IndexedDBClient.h"
     35 
     36 namespace WebCore {
     37 
     38 WorkerGlobalScopeIndexedDatabase::WorkerGlobalScopeIndexedDatabase()
     39 {
     40 }
     41 
     42 WorkerGlobalScopeIndexedDatabase::~WorkerGlobalScopeIndexedDatabase()
     43 {
     44 }
     45 
     46 const char* WorkerGlobalScopeIndexedDatabase::supplementName()
     47 {
     48     return "WorkerGlobalScopeIndexedDatabase";
     49 }
     50 
     51 WorkerGlobalScopeIndexedDatabase& WorkerGlobalScopeIndexedDatabase::from(WillBeHeapSupplementable<WorkerGlobalScope>& context)
     52 {
     53     WorkerGlobalScopeIndexedDatabase* supplement = static_cast<WorkerGlobalScopeIndexedDatabase*>(WillBeHeapSupplement<WorkerGlobalScope>::from(context, supplementName()));
     54     if (!supplement) {
     55         supplement = new WorkerGlobalScopeIndexedDatabase();
     56         provideTo(context, supplementName(), adoptPtrWillBeNoop(supplement));
     57     }
     58     return *supplement;
     59 }
     60 
     61 IDBFactory* WorkerGlobalScopeIndexedDatabase::indexedDB(WillBeHeapSupplementable<WorkerGlobalScope>& context)
     62 {
     63     return from(context).indexedDB();
     64 }
     65 
     66 IDBFactory* WorkerGlobalScopeIndexedDatabase::indexedDB()
     67 {
     68     if (!m_idbFactory)
     69         m_idbFactory = IDBFactory::create(IndexedDBClient::create());
     70     return m_idbFactory.get();
     71 }
     72 
     73 void WorkerGlobalScopeIndexedDatabase::trace(Visitor* visitor)
     74 {
     75     visitor->trace(m_idbFactory);
     76     WillBeHeapSupplement<WorkerGlobalScope>::trace(visitor);
     77 }
     78 
     79 } // namespace WebCore
     80