/*
 * Copyright (C) 2013 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:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
 * OWNER 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
 * (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 "web/DatabaseClientImpl.h"

#include "core/dom/Document.h"
#include "core/dom/ExecutionContext.h"
#include "core/workers/WorkerGlobalScope.h"
#include "public/web/WebPermissionClient.h"
#include "web/WebLocalFrameImpl.h"
#include "web/WorkerPermissionClient.h"

namespace blink {

PassOwnPtrWillBeRawPtr<DatabaseClientImpl> DatabaseClientImpl::create()
{
    return adoptPtrWillBeNoop(new DatabaseClientImpl());
}

DatabaseClientImpl::~DatabaseClientImpl()
{
}

bool DatabaseClientImpl::allowDatabase(ExecutionContext* executionContext, const String& name, const String& displayName, unsigned long estimatedSize)
{
    ASSERT(executionContext->isContextThread());
    ASSERT(executionContext->isDocument() || executionContext->isWorkerGlobalScope());
    if (executionContext->isDocument()) {
        Document* document = toDocument(executionContext);
        WebLocalFrameImpl* webFrame = WebLocalFrameImpl::fromFrame(document->frame());
        if (!webFrame)
            return false;
        if (webFrame->permissionClient())
            return webFrame->permissionClient()->allowDatabase(name, displayName, estimatedSize);
    } else {
        WorkerGlobalScope& workerGlobalScope = *toWorkerGlobalScope(executionContext);
        return WorkerPermissionClient::from(workerGlobalScope)->allowDatabase(name, displayName, estimatedSize);
    }
    return true;
}

DatabaseClientImpl::DatabaseClientImpl()
{
}

} // namespace blink