Source/WebCore/Modules/indexeddb/WorkerGlobalScopeIndexedDatabase.cpp

/*
 * Copyright (C) 2008 Apple Inc. All Rights Reserved.
 * Copyright (C) 2009, 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 APPLE INC. ``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
 * 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
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 */

#include "config.h"

#if ENABLE(INDEXED_DATABASE_IN_WORKERS)

#include "WorkerGlobalScopeIndexedDatabase.h"

#include "IDBConnectionProxy.h"
#include "IDBFactory.h"
#include "IDBOpenDBRequest.h"
#include "ScriptExecutionContext.h"
#include "WorkerGlobalScope.h"

namespace WebCore {

WorkerGlobalScopeIndexedDatabase::WorkerGlobalScopeIndexedDatabase(WorkerGlobalScope&, IDBClient::IDBConnectionProxy& connectionProxy)
    : m_connectionProxy(connectionProxy)
{
}

WorkerGlobalScopeIndexedDatabase::~WorkerGlobalScopeIndexedDatabase() = default;

const char* WorkerGlobalScopeIndexedDatabase::supplementName()
{
    return "WorkerGlobalScopeIndexedDatabase";
}

WorkerGlobalScopeIndexedDatabase* WorkerGlobalScopeIndexedDatabase::from(WorkerGlobalScope& scope)
{
    WorkerGlobalScopeIndexedDatabase* supplement = static_cast<WorkerGlobalScopeIndexedDatabase*>(Supplement<WorkerGlobalScope>::from(&scope, supplementName()));
    if (!supplement) {
        auto* connectionProxy = scope.idbConnectionProxy();
        if (!connectionProxy)
            return nullptr;

        auto newSupplement = makeUnique<WorkerGlobalScopeIndexedDatabase>(scope, *connectionProxy);
        supplement = newSupplement.get();
        provideTo(&scope, supplementName(), WTFMove(newSupplement));
    }
    return supplement;
}

IDBFactory* WorkerGlobalScopeIndexedDatabase::indexedDB(WorkerGlobalScope& scope)
{
    auto* scopeIDB = from(scope);
    return scopeIDB ? scopeIDB->indexedDB() : nullptr;
}

IDBFactory* WorkerGlobalScopeIndexedDatabase::indexedDB()
{
    if (!m_idbFactory)
        m_idbFactory = IDBFactory::create(m_connectionProxy.get());

    return m_idbFactory.get();
}

} // namespace WebCore

#endif // ENABLE(INDEXED_DATABASE_IN_WORKERS)