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diff --git a/svl/source/filepicker/pickerhistory.cxx b/svl/source/filepicker/pickerhistory.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 <svl/pickerhistoryaccess.hxx>
+#include <cppuhelper/weakref.hxx>
+#include <vector>
+
+namespace svt
+{
+ using namespace ::com::sun::star::uno;
+
+ namespace
+ {
+ typedef ::std::vector< css::uno::WeakReference< XInterface > > InterfaceArray;
+
+
+ InterfaceArray& getFolderPickerHistory()
+ {
+ static InterfaceArray s_aHistory;
+ return s_aHistory;
+ }
+
+
+ InterfaceArray& getFilePickerHistory()
+ {
+ static InterfaceArray s_aHistory;
+ return s_aHistory;
+ }
+
+
+ void implPushBackPicker( InterfaceArray& _rHistory, const Reference< XInterface >& _rxPicker )
+ {
+ if ( !_rxPicker.is() )
+ return;
+
+ // first, check which of the objects we hold in s_aHistory can be removed
+ _rHistory.erase(std::remove_if(_rHistory.begin(),
+ _rHistory.end(),
+ [](const css::uno::WeakReference< XInterface > & x) { return !x.get().is(); }),
+ _rHistory.end());
+
+ // then push_back the picker
+ _rHistory.emplace_back( _rxPicker );
+ }
+ }
+
+ void addFolderPicker( const Reference< XInterface >& _rxPicker )
+ {
+ implPushBackPicker( getFolderPickerHistory(), _rxPicker );
+ }
+
+ void addFilePicker( const Reference< XInterface >& _rxPicker )
+ {
+ implPushBackPicker( getFilePickerHistory(), _rxPicker );
+ }
+
+} // namespace svt
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */