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// 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
#ifndef QWINDOWSCLIPBOARD_H
#define QWINDOWSCLIPBOARD_H
#include "qwindowsinternalmimedata.h"
#include <qpa/qplatformclipboard.h>
QT_BEGIN_NAMESPACE
class QWindowsOleDataObject;
class QWindowsClipboardRetrievalMimeData : public QWindowsInternalMimeData {
public:
protected:
IDataObject *retrieveDataObject() const override;
void releaseDataObject(IDataObject *) const override;
};
class QWindowsClipboard : public QPlatformClipboard
{
Q_DISABLE_COPY_MOVE(QWindowsClipboard)
public:
QWindowsClipboard();
~QWindowsClipboard() override;
void registerViewer(); // Call in initialization, when context is up.
void cleanup();
QMimeData *mimeData(QClipboard::Mode mode = QClipboard::Clipboard) override;
void setMimeData(QMimeData *data, QClipboard::Mode mode = QClipboard::Clipboard) override;
bool supportsMode(QClipboard::Mode mode) const override;
bool ownsMode(QClipboard::Mode mode) const override;
inline bool clipboardViewerWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam, LRESULT *result);
static QWindowsClipboard *instance() { return m_instance; }
HWND clipboardViewer() const { return m_clipboardViewer; }
private:
void clear();
void releaseIData();
inline void propagateClipboardMessage(UINT message, WPARAM wParam, LPARAM lParam) const;
inline void unregisterViewer();
inline bool ownsClipboard() const;
static QWindowsClipboard *m_instance;
QWindowsClipboardRetrievalMimeData m_retrievalData;
QWindowsOleDataObject *m_data = nullptr;
HWND m_clipboardViewer = nullptr;
HWND m_nextClipboardViewer = nullptr;
bool m_formatListenerRegistered = false;
};
QT_END_NAMESPACE
#endif // QWINDOWSCLIPBOARD_H
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