X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=src%2Fecore%2Frb_event_handler.c;fp=src%2Fecore%2Frb_event_handler.c;h=63c501632750095f17510e3169e6d1e65f450418;hb=0ad70bf579b712a8bf770e2775cffa4a50097557;hp=0000000000000000000000000000000000000000;hpb=951a30dbb4c36c58839337b93afdbc0d5f7efebd;p=ruby-ecore.git

diff --git a/src/ecore/rb_event_handler.c b/src/ecore/rb_event_handler.c
new file mode 100644
index 0000000..63c5016
--- /dev/null
+++ b/src/ecore/rb_event_handler.c
@@ -0,0 +1,140 @@
+/*
+ * $Id: rb_event_handler.c 77 2004-08-19 17:39:29Z tilman $
+ *
+ * Copyright (C) 2004 ruby-ecore team (see AUTHORS)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <ruby.h>
+#include <stdbool.h>
+
+#include <Ecore.h>
+
+#define __RB_EVENT_HANDLER_C
+#include "rb_ecore.h"
+#include "rb_event_handler.h"
+
+VALUE event_classes, cEcoreEvent;
+static VALUE handlers;
+
+static VALUE c_init (VALUE self, VALUE type)
+{
+	int t;
+
+	if (!rb_block_given_p ())
+		return Qnil;
+
+	t = NUM2INT (type);
+
+	if (t <= ECORE_EVENT_NONE)
+		return Qnil;
+
+	rb_iv_set (self, "@type", type);
+	rb_iv_set (self, "handler", rb_block_proc ());
+
+	rb_ary_push (handlers, self);
+
+	return self;
+}
+
+static VALUE c_delete (VALUE self)
+{
+	int len = RARRAY (handlers)->len, i;
+	VALUE el;
+
+	for (i = 0; i < len; i++) {
+		el = rb_ary_shift (handlers);
+		if (el == self)
+			return Qnil;
+
+		rb_ary_push (handlers, el);
+	}
+
+	return Qnil;
+}
+
+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;
+
+	/* instantiate the event object
+	 * first, find the class we're gonna use
+	 */
+	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;
+}
+
+VALUE c_ev_generic_init (VALUE self, VALUE event)
+{
+	/* dummy */
+	return self;
+}
+
+void Init_EventHandler (void)
+{
+	VALUE cEventHandler;
+
+	cEventHandler = rb_define_class_under (mEcore, "EventHandler",
+	                                       rb_cObject);
+
+	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);
+
+	/* 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);
+}