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 //.........................................................................
  25 namespace svt
  26 {
  27 //.........................................................................
  28     using namespace ::com::sun::star::uno;
  29
  30     namespace
  31     {
  32         typedef ::com::sun::star::uno::WeakReference< XInterface >  InterfaceAdapter;
  33         typedef ::std::vector< InterfaceAdapter  >                  InterfaceArray;
  34
  35         // ----------------------------------------------------------------
  36         InterfaceArray& getFolderPickerHistory()
  37         {
  38             static InterfaceArray s_aHistory;
  39             return s_aHistory;
  40         }
  41
  42         // ----------------------------------------------------------------
  43         InterfaceArray& getFilePickerHistory()
  44         {
  45             static InterfaceArray s_aHistory;
  46             return s_aHistory;
  47         }
  48
  49         // ----------------------------------------------------------------
  50         void implPushBackPicker( InterfaceArray& _rHistory, const Reference< XInterface >& _rxPicker )
  51         {
  52             if ( !_rxPicker.is() )
  53                 return;
  54
  55             //=============================================================
  56             // first, check which of the objects we hold in s_aHistory can be removed
  57             {
  58                 InterfaceArray aCleanedHistory;
  59                 for (   InterfaceArray::const_iterator aLoop = _rHistory.begin();
  60                         aLoop != _rHistory.end();
  61                         ++aLoop
  62                     )
  63                 {
  64                     Reference< XInterface > xCurrent( aLoop->get() );
  65                     if ( xCurrent.is() )
  66                     {
  67                         if ( aCleanedHistory.empty() )
  68                             // make some room, assume that all interfaces (from here on) are valie
  69                             aCleanedHistory.reserve( _rHistory.size() - ( aLoop - _rHistory.begin() ) );
  70                         aCleanedHistory.push_back( InterfaceAdapter( xCurrent ) );
  71                     }
  72                 }
  73                 _rHistory.swap( aCleanedHistory );
  74             }
  75
  76             //=============================================================
  77             // then push_back the picker
  78             _rHistory.push_back( InterfaceAdapter( _rxPicker ) );
  79         }
  80     }
  81
  82     //---------------------------------------------------------------------
  83     void addFolderPicker( const Reference< XInterface >& _rxPicker )
  84     {
  85         implPushBackPicker( getFolderPickerHistory(), _rxPicker );
  86     }
  87
  88     //---------------------------------------------------------------------
  89     void addFilePicker( const Reference< XInterface >& _rxPicker )
  90     {
  91         implPushBackPicker( getFilePickerHistory(), _rxPicker );
  92     }
  93
  94 //.........................................................................
  95 }   // namespace svt
  96 //.........................................................................
  97
  98 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */