root/Source/platform/blob/BlobData.cpp

DEFINITIONS

1. detachFromCurrentThread
2. detachFromCurrentThread
3. create
4. detachFromCurrentThread
5. appendData
6. appendFile
7. appendFile
8. appendBlob
9. appendFileSystemURL
10. appendText
11. appendBytes
12. appendArrayBuffer
13. appendArrayBufferView
14. swapItems
15. length
16. m_size
17. m_size
18. m_size

/*
 * 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 "platform/blob/BlobData.h"

#include "platform/UUID.h"
#include "platform/blob/BlobRegistry.h"
#include "platform/text/LineEnding.h"
#include "wtf/ArrayBuffer.h"
#include "wtf/ArrayBufferView.h"
#include "wtf/OwnPtr.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefPtr.h"
#include "wtf/Vector.h"
#include "wtf/text/CString.h"
#include "wtf/text/TextEncoding.h"

namespace WebCore {

const long long BlobDataItem::toEndOfFile = -1;

RawData::RawData()
{
}

void RawData::detachFromCurrentThread()
{
}

void BlobDataItem::detachFromCurrentThread()
{
    data->detachFromCurrentThread();
    path = path.isolatedCopy();
    fileSystemURL = fileSystemURL.copy();
}

PassOwnPtr<BlobData> BlobData::create()
{
    return adoptPtr(new BlobData());
}

void BlobData::detachFromCurrentThread()
{
    m_contentType = m_contentType.isolatedCopy();
    m_contentDisposition = m_contentDisposition.isolatedCopy();
    for (size_t i = 0; i < m_items.size(); ++i)
        m_items.at(i).detachFromCurrentThread();
}

void BlobData::appendData(PassRefPtr<RawData> data, long long offset, long long length)
{
    m_items.append(BlobDataItem(data, offset, length));
}

void BlobData::appendFile(const String& path)
{
    m_items.append(BlobDataItem(path));
}

void BlobData::appendFile(const String& path, long long offset, long long length, double expectedModificationTime)
{
    m_items.append(BlobDataItem(path, offset, length, expectedModificationTime));
}

void BlobData::appendBlob(PassRefPtr<BlobDataHandle> dataHandle, long long offset, long long length)
{
    m_items.append(BlobDataItem(dataHandle, offset, length));
}

void BlobData::appendFileSystemURL(const KURL& url, long long offset, long long length, double expectedModificationTime)
{
    m_items.append(BlobDataItem(url, offset, length, expectedModificationTime));
}

void BlobData::appendText(const String& text, bool doNormalizeLineEndingsToNative)
{
    RefPtr<RawData> data = RawData::create();
    Vector<char>* buffer = data->mutableData();

    CString utf8Text = UTF8Encoding().normalizeAndEncode(text, WTF::EntitiesForUnencodables);
    if (doNormalizeLineEndingsToNative) {
        WebCore::normalizeLineEndingsToNative(utf8Text, *buffer);
    } else {
        buffer->append(utf8Text.data(), utf8Text.length());
    }

    m_items.append(BlobDataItem(data.release()));
}

void BlobData::appendBytes(const void* bytes, long long length)
{
    RefPtr<RawData> data = RawData::create();
    Vector<char>* buffer = data->mutableData();
    buffer->append(static_cast<const char *>(bytes), length);
    m_items.append(BlobDataItem(data.release()));
}

void BlobData::appendArrayBuffer(const ArrayBuffer* arrayBuffer)
{
    appendBytes(arrayBuffer->data(), arrayBuffer->byteLength());
}

void BlobData::appendArrayBufferView(const ArrayBufferView* arrayBufferView)
{
    appendBytes(arrayBufferView->baseAddress(), arrayBufferView->byteLength());
}

void BlobData::swapItems(BlobDataItemList& items)
{
    m_items.swap(items);
}

long long BlobData::length() const
{
    long long length = 0;

    for (Vector<BlobDataItem>::const_iterator it = m_items.begin(); it != m_items.end(); ++it) {
        const BlobDataItem& item = *it;
        if (item.length != BlobDataItem::toEndOfFile) {
            ASSERT(item.length >= 0);
            length += item.length;
            continue;
        }

        switch (item.type) {
        case BlobDataItem::Data:
            length += item.data->length();
            break;
        case BlobDataItem::File:
        case BlobDataItem::Blob:
        case BlobDataItem::FileSystemURL:
            return BlobDataItem::toEndOfFile;
        }
    }
    return length;
}

BlobDataHandle::BlobDataHandle()
    : m_uuid(createCanonicalUUIDString())
    , m_size(0)
{
    BlobRegistry::registerBlobData(m_uuid, BlobData::create());
}

BlobDataHandle::BlobDataHandle(PassOwnPtr<BlobData> data, long long size)
    : m_uuid(createCanonicalUUIDString())
    , m_type(data->contentType().isolatedCopy())
    , m_size(size)
{
    BlobRegistry::registerBlobData(m_uuid, data);
}

BlobDataHandle::BlobDataHandle(const String& uuid, const String& type, long long size)
    : m_uuid(uuid.isolatedCopy())
    , m_type(type.isolatedCopy())
    , m_size(size)
{
    BlobRegistry::addBlobDataRef(m_uuid);
}

BlobDataHandle::~BlobDataHandle()
{
    BlobRegistry::removeBlobDataRef(m_uuid);
}

} // namespace WebCore