diff options
author | Andre de la Rocha <andre.rocha@qt.io> | 2017-08-28 15:34:05 +0200 |
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committer | Andre de la Rocha <andre.rocha@qt.io> | 2017-09-05 08:22:45 +0000 |
commit | a2a5b7a697a90c5821ee675c943481bf0631aeba (patch) | |
tree | ef28b53a5ead5687d0b4cf514e42ecce9de0d667 /src/plugins/platforms/windows/qwindowsdropdataobject.cpp | |
parent | 54c3ab7a1018ee2e5c1767d233e1c1d9e42425c7 (diff) |
Windows: Make dropped files be opened or attached
Adds QWindowsDropDataObject as a QWindowsOleDataObject subclass
specialized for handling Drag & Drop, which only allows "text/uri-list"
data to be exported as CF_HDROP, to allow files dragged from
Qt applications and dropped into other applications to be recognized as
attachments or opened. Otherwise, files would be imported as URLs and
inserted as local hyperlinks.
[ChangeLog][Important Behavior Changes][Windows] On Windows, a drag
& drop operation of local files URIs, like QListView items backed by a
QFileSystemModel, will result in the attachment or opening of the files
by the target application, instead of the creation of hyperlinks.
Task-number: QTBUG-62662
Change-Id: I51efa4a56574b5e5fb3ee736ede14b5da24caac4
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Diffstat (limited to 'src/plugins/platforms/windows/qwindowsdropdataobject.cpp')
-rw-r--r-- | src/plugins/platforms/windows/qwindowsdropdataobject.cpp | 98 |
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 index 0000000000..bd532ab70e --- /dev/null +++ b/src/plugins/platforms/windows/qwindowsdropdataobject.cpp @@ -0,0 +1,98 @@ +/**************************************************************************** +** +** 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 |