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/***************************************************************************
**
** Copyright (C) 2011 - 2012 Research In Motion
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
****************************************************************************/
#if !defined(QT_NO_CLIPBOARD)
#include "qqnxclipboard.h"
#include <QtGui/QColor>
#include <QtCore/QDebug>
#include <QtCore/QMimeData>
#include <QtCore/QStringList>
#include <QtCore/QUrl>
#include <clipboard/clipboard.h>
#include <errno.h>
#if defined(QQNXCLIPBOARD_DEBUG)
#define qClipboardDebug qDebug
#else
#define qClipboardDebug QT_NO_QDEBUG_MACRO
#endif
QT_BEGIN_NAMESPACE
// null terminated array
static const char *typeList[] = {"text/html", "text/plain", "image/png", "image/jpeg", "application/x-color", 0};
static QByteArray readClipboardBuff(const char *type)
{
char *pbuffer;
if (is_clipboard_format_present(type) == 0) {
int size = get_clipboard_data(type, &pbuffer);
if (size != -1 && pbuffer) {
const QByteArray result = QByteArray(pbuffer, size);
free(pbuffer);
return result;
}
}
return QByteArray();
}
class QQnxClipboard::MimeData : public QMimeData
{
Q_OBJECT
public:
MimeData(QQnxClipboard *clipboard)
: QMimeData(),
m_clipboard(clipboard),
m_userMimeData(0)
{
Q_ASSERT(clipboard);
for (int i = 0; typeList[i] != 0; ++i) {
m_formatsToCheck << QString::fromUtf8(typeList[i]);
}
}
~MimeData()
{
delete m_userMimeData;
}
void addFormatToCheck(const QString &format) {
m_formatsToCheck << format;
qClipboardDebug() << "formats=" << m_formatsToCheck;
}
bool hasFormat(const QString &mimetype) const override
{
const bool result = is_clipboard_format_present(mimetype.toUtf8().constData()) == 0;
qClipboardDebug() << "mimetype=" << mimetype << "result=" << result;
return result;
}
QStringList formats() const override
{
QStringList result;
Q_FOREACH (const QString &format, m_formatsToCheck) {
if (is_clipboard_format_present(format.toUtf8().constData()) == 0)
result << format;
}
qClipboardDebug() << "result=" << result;
return result;
}
void setUserMimeData(QMimeData *userMimeData)
{
delete m_userMimeData;
m_userMimeData = userMimeData;
// system clipboard API doesn't allow detection of changes by other applications
// simulate an owner change through delayed invocation
// basically transfer ownership of data to the system clipboard once event processing resumes
if (m_userMimeData)
QMetaObject::invokeMethod(this, "releaseOwnership", Qt::QueuedConnection);
}
QMimeData *userMimeData()
{
return m_userMimeData;
}
protected:
QVariant retrieveData(const QString &mimetype, QVariant::Type preferredType) const override
{
qClipboardDebug() << "mimetype=" << mimetype << "preferredType=" << preferredType;
if (is_clipboard_format_present(mimetype.toUtf8().constData()) != 0)
return QMimeData::retrieveData(mimetype, preferredType);
const QByteArray data = readClipboardBuff(mimetype.toUtf8().constData());
return QVariant::fromValue(data);
}
private Q_SLOTS:
void releaseOwnership()
{
if (m_userMimeData) {
qClipboardDebug() << "user data formats=" << m_userMimeData->formats() << "system formats=" << formats();
delete m_userMimeData;
m_userMimeData = 0;
m_clipboard->emitChanged(QClipboard::Clipboard);
}
}
private:
QQnxClipboard * const m_clipboard;
QSet<QString> m_formatsToCheck;
QMimeData *m_userMimeData;
};
QQnxClipboard::QQnxClipboard()
: m_mimeData(new MimeData(this))
{
}
QQnxClipboard::~QQnxClipboard()
{
delete m_mimeData;
}
void QQnxClipboard::setMimeData(QMimeData *data, QClipboard::Mode mode)
{
if (mode != QClipboard::Clipboard)
return;
if (m_mimeData == data)
return;
if (m_mimeData->userMimeData() && m_mimeData->userMimeData() == data)
return;
empty_clipboard();
m_mimeData->clear();
m_mimeData->setUserMimeData(data);
if (data == 0) {
emitChanged(QClipboard::Clipboard);
return;
}
const QStringList formats = data->formats();
qClipboardDebug() << "formats=" << formats;
Q_FOREACH (const QString &format, formats) {
const QByteArray buf = data->data(format);
if (buf.isEmpty())
continue;
int ret = set_clipboard_data(format.toUtf8().data(), buf.size(), buf.data());
qClipboardDebug() << "set " << format << "to clipboard, size=" << buf.size() << ";ret=" << ret;
if (ret)
m_mimeData->addFormatToCheck(format);
}
emitChanged(QClipboard::Clipboard);
}
QMimeData *QQnxClipboard::mimeData(QClipboard::Mode mode)
{
if (mode != QClipboard::Clipboard)
return 0;
if (m_mimeData->userMimeData())
return m_mimeData->userMimeData();
m_mimeData->clear();
return m_mimeData;
}
QT_END_NAMESPACE
#include "qqnxclipboard.moc"
#endif //QT_NO_CLIPBOARD
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