src/third_party/WebKit/Source/modules/indexeddb/WorkerGlobalScopeIndexedDatabase.cpp

   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