Source/core/dom/DataTransferItem.cpp

/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
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 *
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 * in the documentation and/or other materials provided with the
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 *
 * 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
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#include "config.h"
#include "core/dom/DataTransferItem.h"

#include "bindings/v8/V8Binding.h"
#include "core/dom/Clipboard.h"
#include "core/dom/StringCallback.h"
#include "core/platform/chromium/ChromiumDataObjectItem.h"

namespace WebCore {

const char DataTransferItem::kindString[] = "string";
const char DataTransferItem::kindFile[] = "file";

PassRefPtr<DataTransferItem> DataTransferItem::create(PassRefPtr<Clipboard> clipboard, PassRefPtr<ChromiumDataObjectItem> item)
{
    return adoptRef(new DataTransferItem(clipboard, item));
}

DataTransferItem::~DataTransferItem()
{
}

String DataTransferItem::kind() const
{
    if (!m_clipboard->canReadTypes())
        return String();
    return m_item->kind();
}

String DataTransferItem::type() const
{
    if (!m_clipboard->canReadTypes())
        return String();
    return m_item->type();
}

void DataTransferItem::getAsString(ExecutionContext* context, PassOwnPtr<StringCallback> callback) const
{
    if (!m_clipboard->canReadData())
        return;

    m_item->getAsString(callback, context);
}

PassRefPtr<Blob> DataTransferItem::getAsFile() const
{
    if (!m_clipboard->canReadData())
        return 0;

    return m_item->getAsFile();
}

DataTransferItem::DataTransferItem(PassRefPtr<Clipboard> clipboard, PassRefPtr<ChromiumDataObjectItem> item)
    : m_clipboard(clipboard)
    , m_item(item)
{
    ScriptWrappable::init(this);
}


} // namespace WebCore