Introduce singleton for KFilePlacesModel

There are various places where Dolphin created a new KFilePlacesModel which would then query all storage devices and do other expensive work.

Differential Revision: https://phabricator.kde.org/D11283

1 files changed, 45 insertions, 0 deletions

diff --git a/src/dolphinplacesmodelsingleton.cpp b/src/dolphinplacesmodelsingleton.cpp
new file mode 100644
index 000000000..1020ba186
--- /dev/null
+++ b/src/dolphinplacesmodelsingleton.cpp
@@ -0,0 +1,45 @@
+/***************************************************************************
+ *   Copyright (C) 2018 Kai Uwe Broulik <[email protected]>            *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
+ ***************************************************************************/
+
+#include "dolphinplacesmodelsingleton.h"
+
+#include <KAboutData>
+#include <KFilePlacesModel>
+
+DolphinPlacesModelSingleton::DolphinPlacesModelSingleton()
+    : m_placesModel(new KFilePlacesModel(KAboutData::applicationData().componentName() + applicationNameSuffix()))
+{
+
+}
+
+DolphinPlacesModelSingleton &DolphinPlacesModelSingleton::instance()
+{
+    static DolphinPlacesModelSingleton s_self;
+    return s_self;
+}
+
+KFilePlacesModel *DolphinPlacesModelSingleton::placesModel() const
+{
+    return m_placesModel.data();
+}
+
+QString DolphinPlacesModelSingleton::applicationNameSuffix()
+{
+    return QStringLiteral("-places-panel");
+}