+ bool playback_permitted ()
+ {
+ if (!_film || !Config::instance()->respect_kdm_validity_periods()) {
+ return true;
+ }
+
+ bool ok = true;
+ BOOST_FOREACH (shared_ptr<Content> i, _film->content()) {
+ shared_ptr<DCPContent> d = dynamic_pointer_cast<DCPContent>(i);
+ if (d && !d->kdm_timing_window_valid()) {
+ ok = false;
+ }
+ }
+
+ if (!ok) {
+ error_dialog (this, _("The KDM does not allow playback of this content at this time."));
+ }
+
+ return ok;
+ }
+