tdf#80807 guisaveas: never recommend system's tempdir

Various download-and-open mechanisms save to the system's
$TEMP dir. If so, don't recomment saving in that same
location in the GUI dialog! That's just silly.

Change-Id: Ifa20fdfd81d768bbd893f92a50355f08c3aab356
Reviewed-on: https://gerrit.libreoffice.org/33353Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Justin Luth <justin_luth@sil.org>

sfx2/source/doc/guisaveas.cxx

@@ -1201,6 +1201,10 @@ OUString ModelData_Impl::GetRecommendedDir( const OUString& aSuggestedDir )
                 aLocation = INetURLObject( SvtPathOptions().GetWorkPath() );
         }
 
+        // Suggest somewhere other than the system's temp directory
+        if( aLocation.GetMainURL( INetURLObject::DecodeMechanism::NONE ).startsWith( SvtPathOptions().GetTempPath() ) )
+            aLocation = INetURLObject( SvtPathOptions().GetWorkPath() );
+
         aLocation.setFinalSlash();
         if ( !aLocation.HasError() )
             aRecommendedDir = aLocation.GetMainURL( INetURLObject::DecodeMechanism::NONE );