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[inkscape.git] / src / uri-references.cpp

diff --git a/src/uri-references.cpp b/src/uri-references.cpp
index fff985139b1f6c9071ec54d07d5fc843b65c6a8d..c9482839d56a5452579583549712eb6ba1b9395d 100644 (file)
--- a/src/uri-references.cpp
+++ b/src/uri-references.cpp
@@ -17,24 +17,39 @@
 #include "uri.h"
 #include "uri-references.h"
 
+#include <sigc++/functors/mem_fun.h>
+
 static gchar *uri_to_id(SPDocument *document, const gchar *uri);
 
 namespace Inkscape {
 
 URIReference::URIReference(SPObject *owner)
-: _owner(owner), _obj(NULL), _uri(NULL)
+       : _owner(owner), _owner_document(NULL), _obj(NULL), _uri(NULL)
 {
        g_assert(_owner != NULL);
        /* FIXME !!! attach to owner's destroy signal to clean up in case */
 }
 
+URIReference::URIReference(SPDocument *owner_document)
+       : _owner(NULL), _owner_document(owner_document), _obj(NULL), _uri(NULL)
+{
+       g_assert(_owner_document != NULL);
+}
+
 URIReference::~URIReference() {
        detach();
 }
 
 void URIReference::attach(const URI &uri) throw(BadURIException)
 {
-       SPDocument *document = SP_OBJECT_DOCUMENT(_owner);
+       SPDocument *document;
+  if (_owner) {
+    document = SP_OBJECT_DOCUMENT(_owner);
+       } else if (_owner_document) {
+    document = _owner_document;
+       } else {
+    g_assert_not_reached();
+       }
        gchar const *fragment = uri.getFragment();
        if ( !uri.isRelative() || uri.getQuery() || !fragment ) {
                throw UnsupportedURIException();
@@ -95,14 +110,14 @@ void URIReference::_setObject(SPObject *obj) {
        SPObject *old_obj=_obj;
        _obj = obj;
 
+       _release_connection.disconnect();
        if (_obj) {
                sp_object_href(_obj, _owner);
-               g_signal_connect(G_OBJECT(_obj), "release", G_CALLBACK(&URIReference::_release), reinterpret_cast<gpointer>(this));
+               _release_connection = _obj->connectRelease(sigc::mem_fun(*this, &URIReference::_release));
        }
        _changed_signal.emit(old_obj, _obj);
        if (old_obj) {
                /* release the old object _after_ the signal emission */
-               g_signal_handlers_disconnect_by_func(G_OBJECT(old_obj), (void *)&URIReference::_release, reinterpret_cast<gpointer>(this));
                sp_object_hunref(old_obj, _owner);
        }
 }
@@ -111,9 +126,9 @@ void URIReference::_setObject(SPObject *obj) {
  * it on its "release" signal, rather than later, when its ID is actually
  * unregistered from the document.
  */
-void URIReference::_release(SPObject *obj, URIReference *reference) {
-       g_assert( reference->_obj == obj );
-       reference->_setObject(NULL);
+void URIReference::_release(SPObject *obj) {
+       g_assert( _obj == obj );
+       _setObject(NULL);
 }
 
 } /* namespace Inkscape */