reuse data from SvtFileView in the FolderTree

Change-Id: I5a830459e7d5d9c71b7997b9014dde048b317d81

fpicker/source/office/RemoteFilesDialog.cxx

@@ -1078,8 +1078,6 @@ void RemoteFilesDialog::UpdateControls( const OUString& rURL )
         OUString* sData = new OUString( rURL );
         pRoot->SetUserData( static_cast< void* >( sData ) );
 
-        m_pTreeView->Expand( pRoot );
-
         m_pName_ed->GrabFocus();
 
         m_sLastServiceUrl = sURL;
@@ -1088,8 +1086,13 @@ void RemoteFilesDialog::UpdateControls( const OUString& rURL )
     }
 
     m_pPath->SetURL( rURL );
+
     m_pTreeView->SetSelectHdl( Link<>() );
-    m_pTreeView->SetTreePath( rURL );
+
+    // read cached data for this url and fill the tree
+    const ::std::vector< std::pair< OUString, OUString > >& rFolders = m_pFileView->GetSubFolders();
+    m_pTreeView->FillTreeEntry( rURL, rFolders );
+
     m_pTreeView->SetSelectHdl( LINK( this, RemoteFilesDialog, TreeSelectHdl ) );
 
     m_bIsConnected = true;

include/svtools/fileview.hxx

@@ -173,6 +173,8 @@ public:
 
     void                    EndInplaceEditing( bool _bCancel );
 
+    ::std::vector< std::pair< OUString, OUString > > GetSubFolders();
+
 protected:
     virtual void            StateChanged( StateChangedType nStateChange ) SAL_OVERRIDE;
 };

include/svtools/foldertree.hxx

@@ -42,12 +42,15 @@ private:
     Image m_aFolderImage;
     Image m_aFolderExpandedImage;
 
+    OUString m_sLastUpdatedDir;
+
 public:
     FolderTree( vcl::Window* pParent, WinBits nBits );
 
     virtual void RequestingChildren( SvTreeListEntry* pEntry ) SAL_OVERRIDE;
 
     void FillTreeEntry( SvTreeListEntry* pEntry );
+    void FillTreeEntry( const OUString & rUrl, const ::std::vector< std::pair< OUString, OUString > >& rFolders );
     void SetTreePath( OUString const & sUrl );
     void SetBlackList( const ::com::sun::star::uno::Sequence< OUString >& rBlackList );
 };

svtools/source/contnr/fileview.cxx

@@ -1387,6 +1387,21 @@ OUString SvtFileView::GetConfigString() const
     return sRet;
 }
 
+::std::vector< std::pair< OUString, OUString > > SvtFileView::GetSubFolders()
+{
+    ::std::vector< std::pair< OUString, OUString > > aContent;
+
+    for( ::std::vector< SortingData_Impl* >::size_type i = 0; i < mpImp->maContent.size(); i++ )
+    {
+        if( mpImp->maContent[i]->mbIsFolder )
+        {
+            std::pair< OUString, OUString > aEntry( mpImp->maContent[i]->GetTitle(), mpImp->maContent[i]->maTargetURL );
+            aContent.push_back( aEntry );
+        }
+    }
+
+    return aContent;
+}
 
 void SvtFileView::SetConfigString( const OUString& rCfgStr )
 {

svtools/source/contnr/foldertree.cxx

@@ -34,21 +34,21 @@ void FolderTree::FillTreeEntry( SvTreeListEntry* pEntry )
 {
     if( pEntry )
     {
-        while (SvTreeListEntry* pChild = FirstChild(pEntry))
-        {
-            GetModel()->Remove(pChild);
-        }
+        OUString* pURL = static_cast< OUString* >( pEntry->GetUserData() );
 
-        ::std::vector< SortingData_Impl* > aContent;
+        if( pURL && m_sLastUpdatedDir != *pURL )
+        {
+            while (SvTreeListEntry* pChild = FirstChild(pEntry))
+            {
+                GetModel()->Remove(pChild);
+            }
 
-        ::rtl::Reference< ::svt::FileViewContentEnumerator >
-            xContentEnumerator(new FileViewContentEnumerator(
-            m_xEnv, aContent, m_aMutex, NULL));
+            ::std::vector< SortingData_Impl* > aContent;
 
-        OUString* pURL = static_cast< OUString* >( pEntry->GetUserData() );
+            ::rtl::Reference< ::svt::FileViewContentEnumerator >
+                xContentEnumerator(new FileViewContentEnumerator(
+                m_xEnv, aContent, m_aMutex, NULL));
 
-        if( pURL )
-        {
             FolderDescriptor aFolder( *pURL );
 
             EnumerationResult eResult =
@@ -69,6 +69,38 @@ void FolderTree::FillTreeEntry( SvTreeListEntry* pEntry )
             }
         }
     }
+    else
+    {
+        // this dir was updated recently
+        // next time read this remote folder
+        m_sLastUpdatedDir = "";
+    }
+}
+
+void FolderTree::FillTreeEntry( const OUString & rUrl, const ::std::vector< std::pair< OUString, OUString > >& rFolders )
+{
+    SetTreePath( rUrl );
+
+    SvTreeListEntry* pParent = GetCurEntry();
+
+    if( pParent && !IsExpanded( pParent ) )
+    {
+        while( GetChildCount( pParent ) > 0 )
+        {
+            SvTreeListEntry* pChild = FirstChild( pParent );
+            GetModel()->Remove( pChild );
+        }
+
+        for(::std::vector< std::pair< OUString, OUString > >::const_iterator it = rFolders.begin(); it != rFolders.end() ; ++it)
+        {
+            SvTreeListEntry* pNewEntry = InsertEntry( it->first, pParent, true  );
+            OUString* sData = new OUString( it->second );
+            pNewEntry->SetUserData( static_cast< void* >( sData ) );
+        }
+
+        m_sLastUpdatedDir = rUrl;
+        Expand( pParent );
+    }
 }
 
 void FolderTree::SetTreePath( OUString const & sUrl )