/src/wrappers/gtk/library/close_signal_receiver.e

 1indexing
 2	description: "Receiver of the close signal."
 3	copyright: "[
 4					Copyright (C) 2006 Paolo Redaelli
 5					
 6					This library is free software; you can redistribute it and/or
 7					modify it under the terms of the GNU Lesser General Public License
 8					as published by the Free Software Foundation; either version 2.1 of
 9					the License, or (at your option) any later version.
10					
11					This library is distributed in the hopeOA that it will be useful, but
12					WITHOUT ANY WARRANTY; without even the implied warranty of
13					MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14					Lesser General Public License for more details.
15
16					You should have received a copy of the GNU Lesser General Public
17					License along with this library; if not, write to the Free Software
18					Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19					02110-1301 USA
20			]"
21
22deferred class CLOSE_SIGNAL_RECEIVER
23
24inherit GTK_WIDGET
25
26feature -- The "close" signal
27	close_signal_name: STRING is "close"
28	
29	enable_on_close is
30			-- Connects "close" signal to `on_close' feature.
31		do
32			connect (Current, close_signal_name, $on_close)
33		end
34		
35	on_close is
36			-- Built-in close signal handler; empty by design; redefine it.
37		do
38		end
39
40	connect_agent_to_activate_signal (a_procedure: PROCEDURE [ANY, TUPLE[CLOSE_SIGNAL_RECEIVER]]) is
41		require
42			valid_procedure: a_procedure /= Void
43		local close_callback: CLOSE_CALLBACK
44		do
45			create close_callback.make
46			close_callback.connect (Current, a_procedure)
47		end
48
49end -- class CLOSE_SIGNAL_RECEIVER