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diff --git a/vcl/unx/kf5/KF5SalInstance.cxx b/vcl/unx/kf5/KF5SalInstance.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <utility>
+
+#include <QtWidgets/QApplication>
+
+#include <sal/log.hxx>
+
+#include <QtData.hxx>
+
+#include "KF5FilePicker.hxx"
+#include "KF5SalInstance.hxx"
+
+using namespace com::sun::star;
+
+KF5SalInstance::KF5SalInstance(std::unique_ptr<QApplication>& pQApp, bool bUseCairo)
+ : QtInstance(pQApp, bUseCairo)
+{
+ ImplSVData* pSVData = ImplGetSVData();
+ pSVData->maAppData.mxToolkitName = constructToolkitID(u"kf5");
+}
+
+bool KF5SalInstance::hasNativeFileSelection() const
+{
+ if (Application::GetDesktopEnvironment() == "PLASMA5")
+ return true;
+ return QtInstance::hasNativeFileSelection();
+}
+
+rtl::Reference<QtFilePicker>
+KF5SalInstance::createPicker(css::uno::Reference<css::uno::XComponentContext> const& context,
+ QFileDialog::FileMode eMode)
+{
+ if (!IsMainThread())
+ {
+ SolarMutexGuard g;
+ rtl::Reference<QtFilePicker> pPicker;
+ RunInMainThread([&, this]() { pPicker = createPicker(context, eMode); });
+ assert(pPicker);
+ return pPicker;
+ }
+
+ // In order to insert custom controls, KF5FilePicker currently relies on KFileWidget
+ // being used in the native file picker, which is only the case for KDE Plasma.
+ // Therefore, return the plain qt5 one in order to not lose custom controls.
+ if (Application::GetDesktopEnvironment() == "PLASMA5")
+ return new KF5FilePicker(context, eMode);
+ return QtInstance::createPicker(context, eMode);
+}
+
+extern "C" {
+VCLPLUG_KF5_PUBLIC SalInstance* create_SalInstance()
+{
+ static const bool bUseCairo = (nullptr == getenv("SAL_VCL_KF5_USE_QFONT"));
+
+ std::unique_ptr<char* []> pFakeArgv;
+ std::unique_ptr<int> pFakeArgc;
+ std::vector<FreeableCStr> aFakeArgvFreeable;
+ QtInstance::AllocFakeCmdlineArgs(pFakeArgv, pFakeArgc, aFakeArgvFreeable);
+
+ std::unique_ptr<QApplication> pQApp
+ = QtInstance::CreateQApplication(*pFakeArgc, pFakeArgv.get());
+
+ KF5SalInstance* pInstance = new KF5SalInstance(pQApp, bUseCairo);
+ pInstance->MoveFakeCmdlineArgs(pFakeArgv, pFakeArgc, aFakeArgvFreeable);
+
+ new QtData();
+
+ return pInstance;
+}
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */