1 files changed, 138 insertions, 0 deletions
diff --git a/svl/source/filepicker/pickerhistory.cxx b/svl/source/filepicker/pickerhistory.cxx
new file mode 100644
index 000000000000..4c372c48163d
--- /dev/null
+++ b/svl/source/filepicker/pickerhistory.cxx
@@ -0,0 +1,138 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_svl.hxx"
+#include "pickerhistory.hxx"
+#include "pickerhistoryaccess.hxx"
+#include <cppuhelper/weakref.hxx>
+#include <vector>
+
+//.........................................................................
+namespace svt
+{
+//.........................................................................
+    using namespace ::com::sun::star::uno;
+
+    namespace
+    {
+        typedef ::com::sun::star::uno::WeakReference< XInterface >  InterfaceAdapter;
+        typedef ::std::vector< InterfaceAdapter  >                  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
+            {
+                InterfaceArray aCleanedHistory;
+                for (   InterfaceArray::const_iterator aLoop = _rHistory.begin();
+                        aLoop != _rHistory.end();
+                        ++aLoop
+                    )
+                {
+                    Reference< XInterface > xCurrent( aLoop->get() );
+                    if ( xCurrent.is() )
+                    {
+                        if ( aCleanedHistory.empty() )
+                            // make some room, assume that all interfaces (from here on) are valie
+                            aCleanedHistory.reserve( _rHistory.size() - ( aLoop - _rHistory.begin() ) );
+                        aCleanedHistory.push_back( InterfaceAdapter( xCurrent ) );
+                    }
+                }
+                _rHistory.swap( aCleanedHistory );
+            }
+
+            //=============================================================
+            // then push_back the picker
+            _rHistory.push_back( InterfaceAdapter( _rxPicker ) );
+        }
+
+        //-----------------------------------------------------------------
+        Reference< XInterface > implGetTopMostPicker( const InterfaceArray& _rHistory )
+        {
+            Reference< XInterface > xTopMostAlive;
+
+            //=============================================================
+            // search the first picker which is still alive ...
+            for (   InterfaceArray::const_reverse_iterator aLoop = _rHistory.rbegin();
+                    ( aLoop != _rHistory.rend() ) && !xTopMostAlive.is();
+                    ++aLoop
+                )
+            {
+                xTopMostAlive = aLoop->get();
+            }
+
+            return xTopMostAlive;
+        }
+    }
+
+    //---------------------------------------------------------------------
+    Reference< XInterface > GetTopMostFolderPicker( )
+    {
+        return implGetTopMostPicker( getFolderPickerHistory() );
+    }
+
+    //---------------------------------------------------------------------
+    Reference< XInterface > GetTopMostFilePicker( )
+    {
+        return implGetTopMostPicker( getFilePickerHistory() );
+    }
+
+    //---------------------------------------------------------------------
+    void addFolderPicker( const Reference< XInterface >& _rxPicker )
+    {
+        implPushBackPicker( getFolderPickerHistory(), _rxPicker );
+    }
+
+    //---------------------------------------------------------------------
+    void addFilePicker( const Reference< XInterface >& _rxPicker )
+    {
+        implPushBackPicker( getFilePickerHistory(), _rxPicker );
+    }
+
+//.........................................................................
+}   // namespace svt
+//.........................................................................
+