tdf#123293 sfx2: fix metadata loss when loading from stream

The problem is that when loading from a stream, there is no BaseURL and
also no storage for the document.

Due to the lack of BaseURL, the sfx2::createBaseURI() throws and loading
RDF metadata fails, which also pops up an annoying warning dialog.

Try to handle this in a similar way than a newly created document (see
GetDMA()), by using the vnd.sun.star.tdoc scheme URL for the document;
this however currently requires that the document has a XStorage, which
is also not the case here.

So add another UNO method to tdoc UCP's tdoc_ucp::ContentProvider,
to split out the creation of the tdoc schema URL from the creation of
the ucb Content, to get rid of the XStorage requirement.

Change-Id: Ica62743f9d21db0b1464b70db1a62ebc61989ef8
Reviewed-on: https://gerrit.libreoffice.org/67882
Tested-by: Jenkins
Reviewed-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>
(cherry picked from commit 0a5ca5768f56db481dd3b947b3dddaab7ed96450)
Reviewed-on: https://gerrit.libreoffice.org/69101
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
(cherry picked from commit 98b99ef61c6d725962cdbaa05ff90c9d1aa72d57)
Reviewed-on: https://gerrit.libreoffice.org/75963
Reviewed-by: Michael Stahl <Michael.Stahl@cib.de>
Tested-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>

1 files changed, 6 insertions, 3 deletions

diff --git a/include/sfx2/DocumentMetadataAccess.hxx b/include/sfx2/DocumentMetadataAccess.hxx
index 31a61adebb01..cf5a2ddbcbac 100644
--- a/include/sfx2/DocumentMetadataAccess.hxx
+++ b/include/sfx2/DocumentMetadataAccess.hxx
@@ -44,6 +44,9 @@
 namespace com { namespace sun { namespace star { namespace embed {
     class XStorage;
 } } } }
+namespace com { namespace sun { namespace star { namespace frame {
+    class XModel;
+} } } }
 class SfxObjectShell;
 
 namespace sfx2 {
@@ -52,7 +55,7 @@ namespace sfx2 {
 /** create a base URI for loading metadata from an ODF (sub)document.
 
     @param i_xContext   component context
-    @param i_xStorage   storage for the document; FileSystemStorage is allowed
+    @param i_xModel     model of the document (required if no URI is provided)
     @param i_rPkgURI    the URI for the package
     @param i_rSubDocument   (optional) path of the subdocument in package
 
@@ -60,8 +63,8 @@ namespace sfx2 {
  */
 css::uno::Reference< css::rdf::XURI> SFX2_DLLPUBLIC
 createBaseURI(
-    css::uno::Reference< css::uno::XComponentContext> const & i_xContext,
-    css::uno::Reference< css::embed::XStorage> const & i_xStorage,
+    css::uno::Reference<css::uno::XComponentContext> const & i_xContext,
+    css::uno::Reference<css::frame::XModel> const & i_xModel,
     OUString const & i_rPkgURI,
     OUString const & i_rSubDocument = OUString());