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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qwindowsinternalmimedata.h"
#include "qwindowscontext.h"
#include "qplatformfunctions_wince.h"
#include "qwindowsmime.h"
#include <QDebug>
/*!
\class QWindowsInternalMimeDataBase
\brief Base for implementations of QInternalMimeData using a IDataObject COM object.
In clipboard handling and Drag and drop, static instances
of QInternalMimeData implementations are kept and passed to the client.
QInternalMimeData provides virtuals that query the formats and retrieve
mime data on demand when the client invokes functions like QMimeData::hasHtml(),
QMimeData::html() on the instance returned. Otherwise, expensive
construction of a new QMimeData object containing all possible
formats would have to be done in each call to mimeData().
The base class introduces new virtuals to obtain and release
the instances IDataObject from the clipboard or Drag and Drop and
does conversion using QWindowsMime classes.
\sa QInternalMimeData, QWindowsMime, QWindowsMimeConverter
\internal
\ingroup qt-lighthouse-win
*/
bool QWindowsInternalMimeData::hasFormat_sys(const QString &mime) const
{
IDataObject *pDataObj = retrieveDataObject();
if (!pDataObj)
return false;
const QWindowsMimeConverter &mc = QWindowsContext::instance()->mimeConverter();
const bool has = mc.converterToMime(mime, pDataObj) != 0;
releaseDataObject(pDataObj);
qCDebug(lcQpaMime) << __FUNCTION__ << mime << has;
return has;
}
QStringList QWindowsInternalMimeData::formats_sys() const
{
IDataObject *pDataObj = retrieveDataObject();
if (!pDataObj)
return QStringList();
const QWindowsMimeConverter &mc = QWindowsContext::instance()->mimeConverter();
const QStringList fmts = mc.allMimesForFormats(pDataObj);
releaseDataObject(pDataObj);
qCDebug(lcQpaMime) << __FUNCTION__ << fmts;
return fmts;
}
QVariant QWindowsInternalMimeData::retrieveData_sys(const QString &mimeType,
QVariant::Type type) const
{
IDataObject *pDataObj = retrieveDataObject();
if (!pDataObj)
return QVariant();
QVariant result;
const QWindowsMimeConverter &mc = QWindowsContext::instance()->mimeConverter();
if (const QWindowsMime *converter = mc.converterToMime(mimeType, pDataObj))
result = converter->convertToMime(mimeType, pDataObj, type);
releaseDataObject(pDataObj);
if (QWindowsContext::verbose) {
qCDebug(lcQpaMime) <<__FUNCTION__ << ' ' << mimeType << ' ' << type
<< " returns " << result.type()
<< (result.type() != QVariant::ByteArray ? result.toString() : QStringLiteral("<data>"));
}
return result;
}
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