[libgxps] Support OpenXPS fixed representation schema

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 764ae1e1e22c3f1bb58543aa40fa80488ee49a47
Author: Jason Crain <jason inspiresomeone us>
Date:   Thu Mar 30 15:41:45 2017 -0500

    Support OpenXPS fixed representation schema
    
    Windows 8 and later default to creating OpenXPS documents instead of
    XPS.  OpenXPS is a modification of XPS, which has been standardized as
    ECMA-388.  OpenXPS changes some schema names.  This adds support for the
    new OpenXPS fixed representation schema so libgxps will work on OXPS
    documents.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=768117

 libgxps/gxps-file.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/libgxps/gxps-file.c b/libgxps/gxps-file.c
index bd57618..4754690 100644
--- a/libgxps/gxps-file.c
+++ b/libgxps/gxps-file.c
@@ -73,6 +73,7 @@ gxps_file_error_quark (void)
 #define REL_METATADA_CORE_PROPS  
"http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties";
 #define REL_METATADA_THUMBNAIL   
"http://schemas.openxmlformats.org/package/2006/relationships/metadata/thumbnail";
 #define REL_FIXED_REPRESENTATION "http://schemas.microsoft.com/xps/2005/06/fixedrepresentation";
+#define REL_OXPS_FIXED_REPRESENTATION "http://schemas.openxps.org/oxps/v1.0/fixedrepresentation";
 
 /* Relationship parser */
 static void
@@ -110,7 +111,8 @@ rels_start_element (GMarkupParseContext  *context,
                        return;
                }
 
-               if (strcmp (type, REL_FIXED_REPRESENTATION) == 0) {
+               if (strcmp (type, REL_FIXED_REPRESENTATION) == 0 ||
+                   strcmp (type, REL_OXPS_FIXED_REPRESENTATION) == 0) {
                        xps->priv->fixed_repr = g_strdup (target);
                } else if (strcmp (type, REL_METATADA_THUMBNAIL) == 0) {
                        xps->priv->thumbnail = g_strdup (target);