qplatformclipboard.cpp

Go to the documentation of this file.

// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qplatformclipboard.h"
 
#ifndef QT_NO_CLIPBOARD
 
#include <QtGui/private/qguiapplication_p.h>
#include <QtCore/qmimedata.h>
 
QT_BEGIN_NAMESPACE
 
class QClipboardData
{
public:
    QClipboardData();
   ~QClipboardData();
 
    void setSource(QMimeData* s)
    {
        if (s == src)
            return;
        delete src;
        src = s;
    }
    QMimeData* source()
        { return src; }
 
private:
    QMimeData* src;
};
 
QClipboardData::QClipboardData()
{
    src = nullptr;
}
 
QClipboardData::~QClipboardData()
{
    delete src;
}
 
Q_GLOBAL_STATIC(QClipboardData,q_clipboardData);
 
/*!
    \class QPlatformClipboard
    \since 5.0
    \internal
    \preliminary
    \ingroup qpa
 
    \brief The QPlatformClipboard class provides an abstraction for the system clipboard.
 */
 
QPlatformClipboard::~QPlatformClipboard()
{
 
}
 
QMimeData *QPlatformClipboard::mimeData(QClipboard::Mode mode)
{
    //we know its clipboard
    Q_UNUSED(mode);
    return q_clipboardData()->source();
}
 
void QPlatformClipboard::setMimeData(QMimeData *data, QClipboard::Mode mode)
{
    //we know its clipboard
    Q_UNUSED(mode);
    q_clipboardData()->setSource(data);
 
    emitChanged(mode);
}
 
bool QPlatformClipboard::supportsMode(QClipboard::Mode mode) const
{
    return mode == QClipboard::Clipboard;
}
 
bool QPlatformClipboard::ownsMode(QClipboard::Mode mode) const
{
    Q_UNUSED(mode);
    return false;
}
 
void QPlatformClipboard::emitChanged(QClipboard::Mode mode)
{
    if (!QGuiApplicationPrivate::is_app_closing) // QTBUG-39317, prevent emission when closing down.
        QGuiApplication::clipboard()->emitChanged(mode);
}
 
QT_END_NAMESPACE
 
#endif //QT_NO_CLIPBOARD