svl/source/filepicker/pickerhistory.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <svl/pickerhistoryaccess.hxx>
  21 #include <cppuhelper/weakref.hxx>
  22 #include <vector>
  23
  24 namespace svt
  25 {
  26     using namespace ::com::sun::star::uno;
  27
  28     namespace
  29     {
  30         typedef ::com::sun::star::uno::WeakReference< XInterface >  InterfaceAdapter;
  31         typedef ::std::vector< InterfaceAdapter  >                  InterfaceArray;
  32
  33
  34         InterfaceArray& getFolderPickerHistory()
  35         {
  36             static InterfaceArray s_aHistory;
  37             return s_aHistory;
  38         }
  39
  40
  41         InterfaceArray& getFilePickerHistory()
  42         {
  43             static InterfaceArray s_aHistory;
  44             return s_aHistory;
  45         }
  46
  47
  48         void implPushBackPicker( InterfaceArray& _rHistory, const Reference< XInterface >& _rxPicker )
  49         {
  50             if ( !_rxPicker.is() )
  51                 return;
  52
  53             // first, check which of the objects we hold in s_aHistory can be removed
  54             {
  55                 InterfaceArray aCleanedHistory;
  56                 for (   InterfaceArray::const_iterator aLoop = _rHistory.begin();
  57                         aLoop != _rHistory.end();
  58                         ++aLoop
  59                     )
  60                 {
  61                     Reference< XInterface > xCurrent( aLoop->get() );
  62                     if ( xCurrent.is() )
  63                     {
  64                         if ( aCleanedHistory.empty() )
  65                             // make some room, assume that all interfaces (from here on) are valid
  66                             aCleanedHistory.reserve( _rHistory.size() - ( aLoop - _rHistory.begin() ) );
  67                         aCleanedHistory.push_back( InterfaceAdapter( xCurrent ) );
  68                     }
  69                 }
  70                 _rHistory.swap( aCleanedHistory );
  71             }
  72
  73             // then push_back the picker
  74             _rHistory.push_back( InterfaceAdapter( _rxPicker ) );
  75         }
  76     }
  77
  78     void addFolderPicker( const Reference< XInterface >& _rxPicker )
  79     {
  80         implPushBackPicker( getFolderPickerHistory(), _rxPicker );
  81     }
  82
  83     void addFilePicker( const Reference< XInterface >& _rxPicker )
  84     {
  85         implPushBackPicker( getFilePickerHistory(), _rxPicker );
  86     }
  87
  88 }   // namespace svt
  89
  90 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */