From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ted Zlatanov Newsgroups: gmane.emacs.devel Subject: widgets with dynamic-choice Date: Mon, 18 Jul 2016 12:53:53 -0400 Organization: =?utf-8?B?0KLQtdC+0LTQvtGAINCX0LvQsNGC0LDQvdC+0LI=?= @ Cienfuegos Message-ID: <87oa5usx9a.fsf@lifelogs.com> Reply-To: emacs-devel@gnu.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1468860989 8794 80.91.229.3 (18 Jul 2016 16:56:29 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 18 Jul 2016 16:56:29 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Jul 18 18:56:19 2016 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1bPBpy-0002zp-Ii for ged-emacs-devel@m.gmane.org; Mon, 18 Jul 2016 18:56:10 +0200 Original-Received: from localhost ([::1]:48986 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bPBpx-0008P7-Vs for ged-emacs-devel@m.gmane.org; Mon, 18 Jul 2016 12:56:10 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:37179) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bPBp1-0008Jk-23 for emacs-devel@gnu.org; Mon, 18 Jul 2016 12:55:12 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bPBou-0002HT-V0 for emacs-devel@gnu.org; Mon, 18 Jul 2016 12:55:09 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:44995) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bPBou-0002HE-Nw for emacs-devel@gnu.org; Mon, 18 Jul 2016 12:55:04 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1bPBot-00025C-D7 for emacs-devel@gnu.org; Mon, 18 Jul 2016 18:55:03 +0200 Original-Received: from c-98-229-60-157.hsd1.ma.comcast.net ([98.229.60.157]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 18 Jul 2016 18:55:03 +0200 Original-Received: from tzz by c-98-229-60-157.hsd1.ma.comcast.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 18 Jul 2016 18:55:03 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: emacs-devel@gnu.org Original-Lines: 18 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: c-98-229-60-157.hsd1.ma.comcast.net X-Face: bd.DQ~'29fIs`T_%O%C\g%6jW)yi[zuz6; d4V0`@y-~$#3P_Ng{@m+e4o<4P'#(_GJQ%TT= D}[Ep*b!\e,fBZ'j_+#"Ps?s2!4H2-Y"sx" Mail-Copies-To: never User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) Cancel-Lock: sha1:qxks3vht6aIB6VKSSpxpIPx/XHQ= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:205815 Archived-At: I've needed widgets with dynamic choices many times for Customize. Stefan also suggested a `dynamic-choice' would be handy. So, I wanted to ask some questions before we write code: * what should it look like? Just a callable symbol or a form or something else? * when should the widget get updated? * how do we deal with outliers like a dynamic 100000 element list? * how are errors handled? do we empty the list or go back to the last good version? * should this just be a way to provide 'choice and 'radio, or do we want a more generic facility that can handle the other composite types? Ted