/*

 * Copyright (C) 2010 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 "BlobBuilder.h"

#include "AtomicString.h"

#include "Blob.h"

#include "ExceptionCode.h"

#include "LineEnding.h"

#include "TextEncoding.h"

namespace WebCore {

static CString convertToCString(const String& text, const String& endingType, ExceptionCode& ec)

{

    DEFINE_STATIC_LOCAL(AtomicString, transparent, ("transparent"));

    DEFINE_STATIC_LOCAL(AtomicString, native, ("native"));

    ec = 0;

    if (endingType.isEmpty() || endingType == transparent)

        return UTF8Encoding().encode(text.characters(), text.length(), EntitiesForUnencodables);

    if (endingType == native)

        return normalizeLineEndingsToNative(UTF8Encoding().encode(text.characters(), text.length(), EntitiesForUnencodables));

    ec = SYNTAX_ERR;

    return CString();

}

bool BlobBuilder::append(const String& text, const String& endingType, ExceptionCode& ec)

{

    CString cstr = convertToCString(text, endingType, ec);

    if (ec)

        return false;

    m_items.append(StringBlobItem::create(cstr));

    return true;

}

bool BlobBuilder::append(const String& text, ExceptionCode& ec)

{

    return append(text, String(), ec);

}

bool BlobBuilder::append(PassRefPtr<Blob> blob)

{

    if (blob) {

        for (size_t i = 0; i < blob->items().size(); ++i)

            m_items.append(blob->items()[i]);

        return true;

    }

    return false;

}

PassRefPtr<Blob> BlobBuilder::getBlob(const String& contentType) const

{

    return Blob::create(contentType, m_items);

}

} // namespace WebCore