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/*
* Copyright (C) 2011, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY GOOGLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*/
#include "config.h"
#include "modules/indexeddb/DOMWindowIndexedDatabase.h"
#include "core/dom/Document.h"
#include "core/frame/LocalDOMWindow.h"
#include "core/page/Page.h"
#include "modules/indexeddb/IDBFactory.h"
namespace blink {
DOMWindowIndexedDatabase::DOMWindowIndexedDatabase(LocalDOMWindow& window)
: DOMWindowProperty(window.frame())
, m_window(window)
{
}
DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(DOMWindowIndexedDatabase);
void DOMWindowIndexedDatabase::trace(Visitor* visitor)
{
visitor->trace(m_idbFactory);
WillBeHeapSupplement<LocalDOMWindow>::trace(visitor);
DOMWindowProperty::trace(visitor);
}
const char* DOMWindowIndexedDatabase::supplementName()
{
return "DOMWindowIndexedDatabase";
}
DOMWindowIndexedDatabase& DOMWindowIndexedDatabase::from(LocalDOMWindow& window)
{
DOMWindowIndexedDatabase* supplement = static_cast<DOMWindowIndexedDatabase*>(WillBeHeapSupplement<LocalDOMWindow>::from(window, supplementName()));
if (!supplement) {
supplement = new DOMWindowIndexedDatabase(window);
provideTo(window, supplementName(), adoptPtrWillBeNoop(supplement));
}
return *supplement;
}
void DOMWindowIndexedDatabase::willDestroyGlobalObjectInFrame()
{
m_idbFactory = nullptr;
DOMWindowProperty::willDestroyGlobalObjectInFrame();
}
void DOMWindowIndexedDatabase::willDetachGlobalObjectFromFrame()
{
m_idbFactory = nullptr;
DOMWindowProperty::willDetachGlobalObjectFromFrame();
}
IDBFactory* DOMWindowIndexedDatabase::indexedDB(DOMWindow& window)
{
return from(toLocalDOMWindow(window)).indexedDB();
}
IDBFactory* DOMWindowIndexedDatabase::indexedDB()
{
Document* document = m_window.document();
if (!document)
return 0;
Page* page = document->page();
if (!page)
return 0;
if (!m_window.isCurrentlyDisplayedInFrame())
return 0;
if (!m_idbFactory)
m_idbFactory = IDBFactory::create(IndexedDBClient::create());
return m_idbFactory.get();
}
} // namespace blink
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