Implement selection offers from compositor to clients.

It is a hack but works beautifully. It allows the compositor to
participate in copy-paste which becomes mandatory when there is UI
running in the compositor process.

Change-Id: I1993d8705a26159eff0c9947244b66e954b9f460
Sanity-Review: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Jørgen Lind <jorgen.lind@nokia.com>

2 files changed, 138 insertions, 0 deletions

diff --git a/src/shared/qwaylandmimehelper.cpp b/src/shared/qwaylandmimehelper.cpp
new file mode 100644
index 000000000..ffdaeef22
--- /dev/null
+++ b/src/shared/qwaylandmimehelper.cpp
@@ -0,0 +1,83 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwaylandmimehelper.h"
+#include <QImage>
+#include <QColor>
+#include <QUrl>
+#include <QBuffer>
+#include <QImageWriter>
+
+QByteArray QWaylandMimeHelper::getByteArray(QMimeData *mimeData, const QString &mimeType)
+{
+    QByteArray content;
+    if (mimeType == QLatin1String("text/plain")) {
+        content = mimeData->text().toUtf8();
+    } else if (mimeData->hasImage()
+               && (mimeType == QLatin1String("application/x-qt-image")
+                   || mimeType.startsWith(QLatin1String("image/")))) {
+        QImage image = qvariant_cast<QImage>(mimeData->imageData());
+        if (!image.isNull()) {
+            QBuffer buf;
+            buf.open(QIODevice::ReadWrite);
+            QByteArray fmt = "BMP";
+            if (mimeType.startsWith(QLatin1String("image/"))) {
+                QByteArray imgFmt = mimeType.mid(6).toUpper().toAscii();
+                if (QImageWriter::supportedImageFormats().contains(imgFmt))
+                    fmt = imgFmt;
+            }
+            QImageWriter wr(&buf, fmt);
+            wr.write(image);
+            content = buf.buffer();
+        }
+    } else if (mimeType == QLatin1String("application/x-color")) {
+        content = qvariant_cast<QColor>(mimeData->colorData()).name().toAscii();
+    } else if (mimeType == QLatin1String("text/uri-list")) {
+        QList<QUrl> urls = mimeData->urls();
+        for (int i = 0; i < urls.count(); ++i) {
+            content.append(urls.at(i).toEncoded());
+            content.append('\n');
+        }
+    } else {
+        content = mimeData->data(mimeType);
+    }
+    return content;
+}
diff --git a/src/shared/qwaylandmimehelper.h b/src/shared/qwaylandmimehelper.h
new file mode 100644
index 000000000..f38c74b90
--- /dev/null
+++ b/src/shared/qwaylandmimehelper.h
@@ -0,0 +1,55 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWAYLANDMIMEHELPER_H
+#define QWAYLANDMIMEHELPER_H
+
+#include <QString>
+#include <QByteArray>
+#include <QMimeData>
+
+class QWaylandMimeHelper
+{
+public:
+    static QByteArray getByteArray(QMimeData *mimeData, const QString &mimeType);
+};
+
+#endif