Resolves: fdo#43867 collection of problems causing loss of ole2 previews

a) factor out part of SvXMLEmbeddedObjectHelper::ImplGetStorageNames as
splitObjectURL to reuse in SvXMLGraphicHelper::ImplGetStreamNames to get better
url splitting logic to handle "./ObjectReplacements/foo"

b) FN_UNO_REPLACEMENT_GRAPHIC_URL and FN_UNO_GRAPHIC ids collide
urls incorrectly treated as graphics

c) imported preview images for objects set on a temporary
svt::EmbeddedObjectRef *copy* of the object, not the real object.

(cherry picked from commit ef17be8b006737c078a59635ae334a03301727ea)

Signed-off-by: Michael Stahl <mstahl@redhat.com>

Conflicts:

	svx/source/xml/xmlgrhlp.cxx

3 files changed, 53 insertions, 50 deletions

diff --git a/svx/inc/svx/xmleohlp.hxx b/svx/inc/svx/xmleohlp.hxx
index 88d965133367..247038bcdfdf 100644
--- a/svx/inc/svx/xmleohlp.hxx
+++ b/svx/inc/svx/xmleohlp.hxx
@@ -145,6 +145,11 @@ public:
     // XNameAccess
     virtual ::com::sun::star::uno::Type SAL_CALL getElementType(  ) throw (::com::sun::star::uno::RuntimeException);
     virtual sal_Bool SAL_CALL hasElements(  ) throw (::com::sun::star::uno::RuntimeException);
+
+
+    static void splitObjectURL(::rtl::OUString aURLNoPar,
+        ::rtl::OUString& rContainerStorageName,
+        ::rtl::OUString& rObjectStorageName);
 };
 
 #endif
diff --git a/svx/source/xml/xmleohlp.cxx b/svx/source/xml/xmleohlp.cxx
index 83bf4648fec5..f20158c4662e 100644
--- a/svx/source/xml/xmleohlp.cxx
+++ b/svx/source/xml/xmleohlp.cxx
@@ -206,6 +206,48 @@ void SAL_CALL SvXMLEmbeddedObjectHelper::disposing()
     Flush();
 }
 
+
+void SvXMLEmbeddedObjectHelper::splitObjectURL(::rtl::OUString aURLNoPar,
+    ::rtl::OUString& rContainerStorageName,
+    ::rtl::OUString& rObjectStorageName)
+{
+    DBG_ASSERT( '#' != aURLNoPar[0], "invalid object URL" );
+
+    sal_Int32 _nPos = aURLNoPar.lastIndexOf( '/' );
+    if( -1 == _nPos )
+    {
+        rContainerStorageName = ::rtl::OUString();
+        rObjectStorageName = aURLNoPar;
+    }
+    else
+    {
+        //eliminate 'superfluous' slashes at start and end
+        //#i103076# load objects with all allowed xlink:href syntaxes
+        {
+            //eliminate './' at start
+            sal_Int32 nStart = 0;
+            sal_Int32 nCount = aURLNoPar.getLength();
+            if( 0 == aURLNoPar.compareToAscii( "./", 2 ) )
+            {
+                nStart = 2;
+                nCount -= 2;
+            }
+
+            //eliminate '/' at end
+            sal_Int32 nEnd = aURLNoPar.lastIndexOf( '/' );
+            if( nEnd == aURLNoPar.getLength()-1 && nEnd != (nStart-1) )
+                nCount--;
+
+            aURLNoPar = aURLNoPar.copy( nStart, nCount );
+        }
+
+        _nPos = aURLNoPar.lastIndexOf( '/' );
+        if( _nPos >= 0 )
+            rContainerStorageName = aURLNoPar.copy( 0, _nPos );
+        rObjectStorageName = aURLNoPar.copy( _nPos+1 );
+    }
+}
+
 // -----------------------------------------------------------------------------
 
 sal_Bool SvXMLEmbeddedObjectHelper::ImplGetStorageNames(
@@ -308,41 +350,7 @@ sal_Bool SvXMLEmbeddedObjectHelper::ImplGetStorageNames(
     }
     else
     {
-        DBG_ASSERT( '#' != aURLNoPar[0], "invalid object URL" );
-
-        sal_Int32 _nPos = aURLNoPar.lastIndexOf( '/' );
-        if( -1 == _nPos )
-        {
-            rContainerStorageName = ::rtl::OUString();
-            rObjectStorageName = aURLNoPar;
-        }
-        else
-        {
-            //eliminate 'superfluous' slashes at start and end
-            //#i103076# load objects with all allowed xlink:href syntaxes
-            {
-                //eliminate './' at start
-                sal_Int32 nStart = 0;
-                sal_Int32 nCount = aURLNoPar.getLength();
-                if( 0 == aURLNoPar.compareToAscii( "./", 2 ) )
-                {
-                    nStart = 2;
-                    nCount -= 2;
-                }
-
-                //eliminate '/' at end
-                sal_Int32 nEnd = aURLNoPar.lastIndexOf( '/' );
-                if( nEnd == aURLNoPar.getLength()-1 && nEnd != (nStart-1) )
-                    nCount--;
-
-                aURLNoPar = aURLNoPar.copy( nStart, nCount );
-            }
-
-            _nPos = aURLNoPar.lastIndexOf( '/' );
-            if( _nPos >= 0 )
-                rContainerStorageName = aURLNoPar.copy( 0, _nPos );
-            rObjectStorageName = aURLNoPar.copy( _nPos+1 );
-        }
+        splitObjectURL(aURLNoPar, rContainerStorageName, rObjectStorageName);
     }
 
     if( -1 != rContainerStorageName.indexOf( '/' ) )
diff --git a/svx/source/xml/xmlgrhlp.cxx b/svx/source/xml/xmlgrhlp.cxx
index 110618f53e04..2f57a9e09d39 100644
--- a/svx/source/xml/xmlgrhlp.cxx
+++ b/svx/source/xml/xmlgrhlp.cxx
@@ -49,6 +49,7 @@
 
 #include "svtools/filter.hxx"
 #include "svx/xmlgrhlp.hxx"
+#include "svx/xmleohlp.hxx"
 
 #include <algorithm>
 
@@ -439,23 +440,12 @@ sal_Bool SvXMLGraphicHelper::ImplGetStreamNames( const ::rtl::OUString& rURLStr,
         {
             rPictureStorageName = String( RTL_CONSTASCII_USTRINGPARAM( XML_GRAPHICSTORAGE_NAME ) );
             rPictureStreamName = aURLStr;
-            bRet = sal_True;
-        }
-        else if( 2 == nTokenCount )
-        {
-            rPictureStorageName = aURLStr.GetToken( 0, '/' );
-
-            DBG_ASSERT( rPictureStorageName.getLength() &&
-                       rPictureStorageName.getStr()[ 0 ] != '#',
-                       "invalid relative URL" );
-
-            rPictureStreamName = aURLStr.GetToken( 1, '/' );
-            bRet = sal_True;
         }
         else
-        {
-            SAL_WARN("svx", "SvXMLGraphicHelper::ImplInsertGraphicURL: invalid scheme: " << rURLStr);
-        }
+            SvXMLEmbeddedObjectHelper::splitObjectURL(aURLStr, rPictureStorageName, rPictureStreamName);
+
+        bRet = !rPictureStreamName.isEmpty();
+        SAL_WARN_IF(!bRet, "svx", "SvXMLGraphicHelper::ImplInsertGraphicURL: invalid scheme: " << rURLStr);
     }
 
     return bRet;