/*
- * $Id: rb_event_handler.c 77 2004-08-19 17:39:29Z tilman $
+ * $Id: rb_event_handler.c 373 2006-02-16 21:37:43Z tilman $
*
* Copyright (C) 2004 ruby-ecore team (see AUTHORS)
*
#include "rb_ecore.h"
#include "rb_event_handler.h"
+typedef struct {
+ Ecore_Event_Handler *real;
+ VALUE event_class;
+ 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 VALUE event_args;
+
+static void c_mark (RbEventHandler *h)
+{
+ rb_gc_mark (h->callback);
+}
-static VALUE c_init (VALUE self, VALUE type)
+static void c_free (RbEventHandler *h)
{
+ if (h->real && !h->deleted)
+ ecore_event_handler_del (h->real);
+
+ 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 klass)
+{
+ RbEventHandler *h = NULL;
int t;
if (!rb_block_given_p ())
- return Qnil;
+ rb_raise (rb_eStandardError, "block missing");
- t = NUM2INT (type);
+ Data_Get_Struct (self, RbEventHandler, h);
- if (t <= ECORE_EVENT_NONE)
- return Qnil;
+ if (rb_obj_is_kind_of (klass, rb_cModule) != Qtrue)
+ rb_raise (rb_eArgError, "invalid argument");
- rb_iv_set (self, "@type", type);
- rb_iv_set (self, "handler", rb_block_proc ());
+ t = NUM2INT (rb_const_get (klass, rb_intern ("TYPE")));
+ if (t <= ECORE_EVENT_NONE)
+ rb_raise (rb_eStandardError, "invalid event");
- rb_ary_push (handlers, self);
+ h->event_class = klass;
+ h->callback = rb_block_proc ();
+ h->deleted = false;
+ h->real = ecore_event_handler_add (t, on_ecore_event, h);
return self;
}
static VALUE c_delete (VALUE self)
{
- int len = RARRAY (handlers)->len, i;
- VALUE el;
+ RbEventHandler *h = NULL;
- for (i = 0; i < len; i++) {
- el = rb_ary_shift (handlers);
- if (el == self)
- return Qnil;
+ Data_Get_Struct (self, RbEventHandler, h);
- rb_ary_push (handlers, el);
- }
+ if (h->real && !h->deleted) {
+ ecore_event_handler_del (h->real);
+ h->real = NULL;
+ h->deleted = true;
+ } else
+ rb_raise (rb_eException, "EventHandler already deleted!");
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 = data;
+ VALUE obj, tmp = (VALUE) event;
- /* instantiate the event object
- * first, find the class we're gonna use
+ obj = rb_obj_alloc (h->event_class);
+
+ if (rb_respond_to (h->event_class, rb_intern ("raise")))
+ rb_apply (obj, rb_intern ("initialize"), tmp);
+ else
+ rb_obj_call_init (obj, 1, &tmp);
+
+ tmp = rb_funcall (h->callback, rb_intern ("call"), 1, obj);
+
+ /* if the block returned false, don't call the other
+ * event handlers
*/
- if (NIL_P (klass = rb_hash_aref (event_classes, INT2NUM (type)))) {
- 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);
-
- len = RARRAY (handlers)->len;
-
- for (i = 0; i < len; i++) {
- handler = rb_ary_entry (handlers, i);
- handler_type = NUM2INT (rb_iv_get (handler, "@type"));
-
- if (handler_type == type) {
- res = rb_funcall (rb_iv_get (handler, "handler"),
- rb_intern ("call"), 1, obj);
- called = true;
-
- /* if the block returned false, don't call the other
- * event handlers
- */
- if (res == Qfalse)
- break;
- }
- }
-
- if (type == ECORE_EVENT_SIGNAL_EXIT && !called)
- ecore_main_loop_quit ();
-
- return 0;
+ return (tmp != Qfalse);
}
-VALUE c_ev_generic_init (VALUE self, VALUE event)
+VALUE c_ev_inherited (VALUE klass, VALUE child)
+{
+ VALUE t;
+
+ t = INT2FIX (ecore_event_type_new ());
+ rb_hash_aset (event_classes, t, child);
+
+ rb_define_const (child, "TYPE", t);
+ rb_define_singleton_method (child, "raise", c_ev_raise, -2);
+
+ return Qnil;
+}
+
+static VALUE c_ev_init (int argc, VALUE *argv, VALUE self)
{
- /* dummy */
return self;
}
+static void free_event_args (void *data, void *argv)
+{
+ rb_ary_delete (event_args, (VALUE) argv);
+}
+
+static VALUE c_ev_raise (VALUE klass, VALUE argv)
+{
+ VALUE t;
+
+ rb_ary_push (event_args, argv);
+
+ t = rb_const_get (klass, rb_intern ("TYPE"));
+ ecore_event_add (FIX2INT (t), (void *) argv, free_event_args, 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);
- handlers = rb_ary_new ();
- rb_global_variable (&handlers);
-
event_classes = rb_hash_new ();
rb_global_variable (&event_classes);
+ event_args = rb_ary_new ();
+ rb_global_variable (&event_args);
+
/* 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);
}
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