svtools/source/filepicker/pickerhistory.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_svtools.hxx"
  33 #include "pickerhistory.hxx"
  34 #include "pickerhistoryaccess.hxx"
  35 #include <cppuhelper/weakref.hxx>
  36 #include <vector>
  37
  38 //.........................................................................
  39 namespace svt
  40 {
  41 //.........................................................................
  42     using namespace ::com::sun::star::uno;
  43
  44     namespace
  45     {
  46         typedef ::com::sun::star::uno::WeakReference< XInterface >      InterfaceAdapter;
  47         typedef ::std::vector< InterfaceAdapter  >                                      InterfaceArray;
  48
  49         // ----------------------------------------------------------------
  50         InterfaceArray& getFolderPickerHistory()
  51         {
  52             static InterfaceArray s_aHistory;
  53             return s_aHistory;
  54         }
  55
  56         // ----------------------------------------------------------------
  57         InterfaceArray& getFilePickerHistory()
  58         {
  59             static InterfaceArray s_aHistory;
  60             return s_aHistory;
  61         }
  62
  63         // ----------------------------------------------------------------
  64         void implPushBackPicker( InterfaceArray& _rHistory, const Reference< XInterface >& _rxPicker )
  65         {
  66             if ( !_rxPicker.is() )
  67                 return;
  68
  69             //=============================================================
  70             // first, check which of the objects we hold in s_aHistory can be removed
  71             {
  72                 InterfaceArray aCleanedHistory;
  73                 for     (       InterfaceArray::const_iterator aLoop = _rHistory.begin();
  74                         aLoop != _rHistory.end();
  75                         ++aLoop
  76                     )
  77                 {
  78                     Reference< XInterface > xCurrent( aLoop->get() );
  79                     if ( xCurrent.is() )
  80                     {
  81                         if ( aCleanedHistory.empty() )
  82                             // make some room, assume that all interfaces (from here on) are valie
  83                             aCleanedHistory.reserve( _rHistory.size() - ( aLoop - _rHistory.begin() ) );
  84                         aCleanedHistory.push_back( InterfaceAdapter( xCurrent ) );
  85                     }
  86                 }
  87                 _rHistory.swap( aCleanedHistory );
  88             }
  89
  90             //=============================================================
  91             // then push_back the picker
  92             _rHistory.push_back( InterfaceAdapter( _rxPicker ) );
  93         }
  94
  95         //-----------------------------------------------------------------
  96         Reference< XInterface > implGetTopMostPicker( const InterfaceArray& _rHistory )
  97         {
  98             Reference< XInterface > xTopMostAlive;
  99
 100             //=============================================================
 101             // search the first picker which is still alive ...
 102             for (       InterfaceArray::const_reverse_iterator aLoop = _rHistory.rbegin();
 103                     ( aLoop != _rHistory.rend() ) && !xTopMostAlive.is();
 104                     ++aLoop
 105                 )
 106             {
 107                 xTopMostAlive = aLoop->get();
 108             }
 109
 110             return xTopMostAlive;
 111         }
 112     }
 113
 114     //---------------------------------------------------------------------
 115     Reference< XInterface > GetTopMostFolderPicker( )
 116     {
 117         return implGetTopMostPicker( getFolderPickerHistory() );
 118     }
 119
 120     //---------------------------------------------------------------------
 121     Reference< XInterface > GetTopMostFilePicker( )
 122     {
 123         return implGetTopMostPicker( getFilePickerHistory() );
 124     }
 125
 126     //---------------------------------------------------------------------
 127     void addFolderPicker( const Reference< XInterface >& _rxPicker )
 128     {
 129         implPushBackPicker( getFolderPickerHistory(), _rxPicker );
 130     }
 131
 132     //---------------------------------------------------------------------
 133     void addFilePicker( const Reference< XInterface >& _rxPicker )
 134     {
 135         implPushBackPicker( getFilePickerHistory(), _rxPicker );
 136     }
 137
 138 //.........................................................................
 139 }       // namespace svt
 140 //.........................................................................
 141