/*
- * $Id: rb_event_handler.c 79 2004-08-19 22:20:10Z tilman $
+ * $Id: rb_event_handler.c 372 2006-02-16 20:39:55Z tilman $
*
* Copyright (C) 2004 ruby-ecore team (see AUTHORS)
*
#include "rb_ecore.h"
#include "rb_event_handler.h"
+typedef struct {
+ Ecore_Event_Handler *real;
+ int type;
+ VALUE callback;
+ bool deleted;
+} RbEventHandler;
+
+static int on_ecore_event (void *data, int type, void *event);
+static VALUE c_ev_raise (VALUE klass, VALUE argv);
+
VALUE event_classes, cEcoreEvent;
static VALUE handlers;
+static void c_mark (RbEventHandler *h)
+{
+ rb_gc_mark (h->callback);
+}
+
+static void c_free (RbEventHandler *h)
+{
+ RbEventHandler *h2 = NULL;
+ int len = RARRAY (handlers)->len, i;
+ VALUE el;
+
+ if (!h->real || h->deleted) {
+ free (h);
+ return;
+ }
+
+ for (i = 0; i < len; i++) {
+ el = rb_ary_shift (handlers);
+
+ Data_Get_Struct (el, RbEventHandler, h2);
+
+ if (h == h2) {
+ ecore_event_handler_del (h->real);
+ break;
+ }
+
+ rb_ary_push (handlers, el);
+ }
+
+ free (h);
+}
+
+static VALUE c_alloc (VALUE klass)
+{
+ RbEventHandler *h = NULL;
+
+ return Data_Make_Struct (klass, RbEventHandler, c_mark, c_free, h);
+}
+
static VALUE c_init (VALUE self, VALUE type)
{
+ RbEventHandler *h = NULL;
int t;
if (!rb_block_given_p ())
- return Qnil;
+ rb_raise (rb_eStandardError, "block missing");
+
+ Data_Get_Struct (self, RbEventHandler, h);
- t = NUM2INT (type);
+ if (rb_obj_is_kind_of (type, rb_cModule) != Qtrue)
+ rb_raise (rb_eArgError, "invalid argument");
+ t = NUM2INT (rb_const_get (type, rb_intern ("TYPE")));
if (t <= ECORE_EVENT_NONE)
- return Qnil;
+ rb_raise (rb_eStandardError, "invalid type");
- rb_iv_set (self, "@type", type);
- rb_iv_set (self, "handler", rb_block_proc ());
+ h->type = t;
+ h->callback = rb_block_proc ();
+ h->deleted = false;
+ h->real = ecore_event_handler_add (t, on_ecore_event, NULL);
rb_ary_push (handlers, self);
static VALUE c_delete (VALUE self)
{
+ RbEventHandler *h = NULL;
int len = RARRAY (handlers)->len, i;
VALUE el;
for (i = 0; i < len; i++) {
el = rb_ary_shift (handlers);
- if (el == self)
- return Qnil;
+ if (el == self) {
+ Data_Get_Struct (self, RbEventHandler, h);
+ ecore_event_handler_del (h->real);
+ h->real = NULL;
+ h->deleted = true;
+
+ break;
+ }
rb_ary_push (handlers, el);
}
return Qnil;
}
-int on_ecore_event (void *data, int type, void *event)
+static int on_ecore_event (void *data, int type, void *event)
{
- VALUE handler, klass, obj, argv[1], res;
- int handler_type, len, i;
- bool called = false;
+ RbEventHandler *h = NULL;
+ VALUE handler, klass, obj, tmp, res;
+ int len, ret = 1, i;
/* instantiate the event object
* first, find the class we're gonna use
*/
- if (NIL_P (klass = rb_hash_aref (event_classes, INT2NUM (type)))) {
+ klass = rb_hash_aref (event_classes, INT2NUM (type));
+ if (NIL_P (klass))
rb_raise (rb_eException, "Cannot find event class "
"for event %i\n", type);
- return 0;
- }
/* now create and init the object */
- obj = rb_obj_alloc (klass);
- argv[0] = (VALUE) event;
- rb_obj_call_init (obj, 1, argv);
+ tmp = (VALUE) event;
+
+ /* if tmp is a Ruby class, we'll just pass the arguments to the
+ * initialize method.
+ * if it's a c struct, we can use rb_class_new_instance()
+ */
+ if (rb_respond_to (klass, rb_intern ("raise"))) {
+ obj = rb_obj_alloc (klass);
+ rb_apply (obj, rb_intern ("initialize"), tmp);
+ } else
+ obj = rb_class_new_instance (1, &tmp, klass);
len = RARRAY (handlers)->len;
for (i = 0; i < len; i++) {
handler = rb_ary_entry (handlers, i);
- handler_type = NUM2INT (rb_iv_get (handler, "@type"));
+ Data_Get_Struct (handler, RbEventHandler, h);
- if (handler_type == type) {
- res = rb_funcall (rb_iv_get (handler, "handler"),
- rb_intern ("call"), 1, obj);
- called = true;
+ if (h->type == type) {
+ res = rb_funcall (h->callback, rb_intern ("call"), 1, obj);
/* if the block returned false, don't call the other
* event handlers
*/
- if (res == Qfalse)
+ if (res == Qfalse) {
+ ret = 0;
break;
+ }
}
}
- if (type == ECORE_EVENT_SIGNAL_EXIT && !called)
- ecore_main_loop_quit ();
+ return ret;
+}
+
+VALUE c_ev_inherited (VALUE klass, VALUE child)
+{
+ VALUE t;
+
+ t = INT2FIX (ecore_event_type_new ());
+ rb_hash_aset (event_classes, t, child);
- /* call other event handlers, too */
- return 1;
+ rb_define_const (child, "TYPE", t);
+ rb_define_singleton_method (child, "raise", c_ev_raise, -2);
+
+ return Qnil;
}
-VALUE c_ev_generic_init (VALUE self, VALUE event)
+static VALUE c_ev_init (int argc, VALUE *argv, VALUE self)
{
- /* dummy */
return self;
}
+static void free_ruby_event (void *data, void *event)
+{
+ /* do nothing */
+}
+
+static VALUE c_ev_raise (VALUE klass, VALUE argv)
+{
+ VALUE t;
+
+ t = rb_const_get (klass, rb_intern ("TYPE"));
+ ecore_event_add (FIX2INT (t), (void *) argv, free_ruby_event, NULL);
+
+ return Qnil;
+}
+
void Init_EventHandler (void)
{
VALUE cEventHandler;
cEventHandler = rb_define_class_under (mEcore, "EventHandler",
rb_cObject);
+ rb_define_alloc_func (cEventHandler, c_alloc);
rb_define_method (cEventHandler, "initialize", c_init, 1);
rb_define_method (cEventHandler, "delete", c_delete, 0);
/* define a base event class */
cEcoreEvent = rb_define_class_under (mEcore, "Event", rb_cObject);
- rb_define_private_method (rb_singleton_class (cEcoreEvent),
- "new", NULL, 0);
+ rb_define_singleton_method (cEcoreEvent, "inherited", c_ev_inherited, 1);
+ rb_define_method (cEcoreEvent, "initialize", c_ev_init, -1);
}