v8databasecustom.cpp

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

/*
 * Copyright (C) 2009 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 "v8_binding.h"
#include "v8_custom.h"
#include "v8_proxy.h"

#include "Database.h"
#include "V8CustomSQLTransactionCallback.h"
#include "V8CustomSQLTransactionErrorCallback.h"
#include "V8CustomVoidCallback.h"

namespace WebCore {

CALLBACK_FUNC_DECL(DatabaseChangeVersion)
{
    INC_STATS("DOM.Database.changeVersion()");
    return v8::Undefined();
}

CALLBACK_FUNC_DECL(DatabaseTransaction)
{
    INC_STATS("DOM.Database.transaction()");

    if (args.Length() == 0) {
        V8Proxy::ThrowError(V8Proxy::SYNTAX_ERROR, "Transaction callback is required.");
        return v8::Undefined();
    }

    if (!args[0]->IsObject()) {
        V8Proxy::ThrowError(V8Proxy::TYPE_ERROR, "Transaction callback must be of valid type.");
        return v8::Undefined();
    }

    Database* database = V8Proxy::ToNativeObject<Database>(V8ClassIndex::DATABASE, args.Holder());

    Frame* frame = V8Proxy::retrieveFrame();

    RefPtr<V8CustomSQLTransactionCallback> callback = V8CustomSQLTransactionCallback::create(args[0], frame);

    RefPtr<V8CustomSQLTransactionErrorCallback> errorCallback;
    if (args.Length() > 1) {
        if (!args[1]->IsObject()) {
            V8Proxy::ThrowError(V8Proxy::TYPE_ERROR, "Transaction error callback must be of valid type.");
            return v8::Undefined();
        }
        errorCallback = V8CustomSQLTransactionErrorCallback::create(args[1], frame);
    }

    RefPtr<V8CustomVoidCallback> successCallback;
    if (args.Length() > 2) {
        if (!args[1]->IsObject()) {
            V8Proxy::ThrowError(V8Proxy::TYPE_ERROR, "Transaction success callback must be of valid type.");
            return v8::Undefined();
        }
        successCallback = V8CustomVoidCallback::create(args[2], frame);
    }

    database->transaction(callback.release(), errorCallback.release(), successCallback.release());

    return v8::Undefined();
}

} // namespace WebCore