1 files changed, 98 insertions, 0 deletions
diff --git a/src/plugins/platforms/windows/qwindowsdropdataobject.cpp b/src/plugins/platforms/windows/qwindowsdropdataobject.cpp
new file mode 100644
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+++ b/src/plugins/platforms/windows/qwindowsdropdataobject.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwindowsdropdataobject.h"
+
+#include <QtCore/QUrl>
+#include <QtCore/QMimeData>
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \class QWindowsDropDataObject
+    \brief QWindowsOleDataObject subclass specialized for handling Drag&Drop.
+
+   Only allows "text/uri-list" data to be exported as CF_HDROP, to allow dropped
+   files to be attached to Office applications (instead of adding an URL link).
+
+    \internal
+    \ingroup qt-lighthouse-win
+*/
+
+QWindowsDropDataObject::QWindowsDropDataObject(QMimeData *mimeData) :
+    QWindowsOleDataObject(mimeData)
+{
+}
+
+QWindowsDropDataObject::~QWindowsDropDataObject()
+{
+}
+
+STDMETHODIMP
+QWindowsDropDataObject::GetData(LPFORMATETC pformatetc, LPSTGMEDIUM pmedium)
+{
+    if (shouldIgnore(pformatetc))
+        return ResultFromScode(DATA_E_FORMATETC);
+
+    return QWindowsOleDataObject::GetData(pformatetc, pmedium);
+}
+
+STDMETHODIMP
+QWindowsDropDataObject::QueryGetData(LPFORMATETC pformatetc)
+{
+    if (shouldIgnore(pformatetc))
+        return ResultFromScode(DATA_E_FORMATETC);
+
+    return QWindowsOleDataObject::QueryGetData(pformatetc);
+}
+
+// If the data is text/uri-list for local files, tell we can only export it as CF_HDROP.
+bool QWindowsDropDataObject::shouldIgnore(LPFORMATETC pformatetc) const
+{
+    QMimeData *dropData = mimeData();
+
+    if (dropData && dropData->hasFormat(QStringLiteral("text/uri-list")) && (pformatetc->cfFormat != CF_HDROP)) {
+        QList<QUrl> urls = dropData->urls();
+        return std::any_of(urls.cbegin(), urls.cend(), [] (const QUrl &u) { return u.isLocalFile(); });
+    }
+
+    return false;
+}
+
+QT_END_NAMESPACE