Make flatpak portal support to be used also by Snap applications

Snap now uses xdg-desktop-portal for portal support. Add check for apps
running in Snap and make them use portals by default. We also should be
using different name for the platform theme used by sandboxed apps.

Change-Id: Ibaa35b7549b3d94775d7edb937f729a300d071b6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 106 insertions, 0 deletions

diff --git a/src/plugins/platformthemes/xdgdesktopportal/qxdgdesktopportalfiledialog_p.h b/src/plugins/platformthemes/xdgdesktopportal/qxdgdesktopportalfiledialog_p.h
new file mode 100644
index 0000000000..c1f1a2c005
--- /dev/null
+++ b/src/plugins/platformthemes/xdgdesktopportal/qxdgdesktopportalfiledialog_p.h
@@ -0,0 +1,106 @@
+/****************************************************************************
+**
+** Copyright (C) 2017-2018 Red Hat, Inc
+** 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef QXDGDESKTOPPORTALFILEDIALOG_P_H
+#define QXDGDESKTOPPORTALFILEDIALOG_P_H
+
+#include <qpa/qplatformdialoghelper.h>
+#include <QVector>
+
+QT_BEGIN_NAMESPACE
+
+class QXdgDesktopPortalFileDialogPrivate;
+
+class QXdgDesktopPortalFileDialog : public QPlatformFileDialogHelper
+{
+    Q_OBJECT
+    Q_DECLARE_PRIVATE(QXdgDesktopPortalFileDialog)
+public:
+    enum ConditionType : uint {
+        GlobalPattern = 0,
+        MimeType = 1
+    };
+    // Filters a(sa(us))
+    // Example: [('Images', [(0, '*.ico'), (1, 'image/png')]), ('Text', [(0, '*.txt')])]
+    struct FilterCondition {
+        ConditionType type;
+        QString pattern; // E.g. '*ico' or 'image/png'
+    };
+    typedef QVector<FilterCondition> FilterConditionList;
+
+    struct Filter {
+        QString name; // E.g. 'Images' or 'Text
+        FilterConditionList filterConditions;; // E.g. [(0, '*.ico'), (1, 'image/png')] or [(0, '*.txt')]
+    };
+    typedef QVector<Filter> FilterList;
+
+    QXdgDesktopPortalFileDialog(QPlatformFileDialogHelper *nativeFileDialog = nullptr);
+    ~QXdgDesktopPortalFileDialog();
+
+    bool defaultNameFilterDisables() const override;
+    QUrl directory() const override;
+    void setDirectory(const QUrl &directory) override;
+    void selectFile(const QUrl &filename) override;
+    QList<QUrl> selectedFiles() const override;
+    void setFilter() override;
+    void selectNameFilter(const QString &filter) override;
+    QString selectedNameFilter() const override;
+
+    void exec() override;
+    bool show(Qt::WindowFlags windowFlags, Qt::WindowModality windowModality, QWindow *parent) override;
+    void hide() override;
+
+private Q_SLOTS:
+    void gotResponse(uint response, const QVariantMap &results);
+
+private:
+    void initializeDialog();
+    void openPortal();
+
+    QScopedPointer<QXdgDesktopPortalFileDialogPrivate> d_ptr;
+};
+
+QT_END_NAMESPACE
+
+Q_DECLARE_METATYPE(QXdgDesktopPortalFileDialog::FilterCondition);
+Q_DECLARE_METATYPE(QXdgDesktopPortalFileDialog::FilterConditionList);
+Q_DECLARE_METATYPE(QXdgDesktopPortalFileDialog::Filter);
+Q_DECLARE_METATYPE(QXdgDesktopPortalFileDialog::FilterList);
+
+#endif // QXDGDESKTOPPORTALFILEDIALOG_P_H
+