*/
#include "dispatcher.hh"
+#include "input.hh"
#include "international.hh"
#include "ly-smobs.icc"
-#include "stream-event.hh"
#include "warn.hh"
-// ES todo: move to lily-guile.hh
-SCM appendable_list ();
-void appendable_list_append (SCM l, SCM elt);
-
IMPLEMENT_SMOBS (Dispatcher);
IMPLEMENT_TYPE_P (Dispatcher, "dispatcher");
IMPLEMENT_DEFAULT_EQUAL_P (Dispatcher);
SCM class_symbol = ev->get_property ("class");
if (!scm_symbol_p (class_symbol))
{
- warning (_f ("Unknown event class %s", ly_symbol2string (class_symbol).c_str ()));
+ warning (_f ("Event class should be a symbol"));
return;
}
SCM class_list = scm_call_1 (ly_lily_module_constant ("ly:make-event-class"), class_symbol);
+ if (!scm_is_pair (class_list))
+ {
+ ev->origin ()->warning (_f ("Unknown event class %s", ly_symbol2string (class_symbol).c_str ()));
+ return;
+ }
bool sent = false;
int num_classes = scm_ilength (class_list);
Dispatcher::internal_add_listener (Listener l, SCM ev_class, int priority)
{
SCM list = scm_hashq_ref (listeners_, ev_class, SCM_EOL);
- if (list == SCM_EOL)
+ if (!scm_is_pair (list))
{
- /* Register with all dispatchers. */
+ /* Tell all dispatchers that we listen to, that we want to hear ev_class
+ events */
for (SCM disp = dispatchers_; scm_is_pair(disp); disp = scm_cdr (disp))
{
int priority = scm_to_int (scm_cdar (disp));
listen_classes_ = scm_cons (ev_class, listen_classes_);
}
SCM entry = scm_cons (scm_int2num (priority), l.smobbed_copy ());
- list = scm_merge_x (list, scm_list_1 (entry), ly_lily_module_constant ("car<"));
+ list = scm_merge (list, scm_list_1 (entry), ly_lily_module_constant ("car<"));
scm_hashq_set_x (listeners_, ev_class, list);
}
else
e = scm_cdr (e);
list = scm_cdr (dummy);
+ scm_hashq_set_x (listeners_, ev_class, list);
if (first)
warning ("Attempting to remove nonexisting listener.");
- else if (list == SCM_EOL)
+ else if (!scm_is_pair (list))
{
/* Unregister with all dispatchers. */
- for (SCM disp = dispatchers_; disp != SCM_EOL; disp = scm_cdr (disp))
+ for (SCM disp = dispatchers_; scm_is_pair (disp); disp = scm_cdr (disp))
{
Dispatcher *d = unsmob_dispatcher (scm_caar (disp));
d->remove_listener (GET_LISTENER (dispatch), ev_class);
dispatchers_ = scm_acons (disp->self_scm (), scm_int2num (priority), dispatchers_);
Listener list = GET_LISTENER (dispatch);
- for (SCM cl = listen_classes_; cl != SCM_EOL; cl = scm_cdr (cl))
+ for (SCM cl = listen_classes_; scm_is_pair (cl); cl = scm_cdr (cl))
{
disp->internal_add_listener (list, scm_car (cl), priority);
}
{
dispatchers_ = scm_assq_remove_x (dispatchers_, disp->self_scm ());
- Listener list = GET_LISTENER (dispatch);
- for (SCM cl = listen_classes_; cl != SCM_EOL; cl = scm_cdr (cl))
+ Listener listener = GET_LISTENER (dispatch);
+ for (SCM cl = listen_classes_; scm_is_pair (cl); cl = scm_cdr (cl))
{
- disp->remove_listener (list, scm_car (cl));
+ disp->remove_listener (listener, scm_car (cl));
}
}