From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Keith David Bershatsky Newsgroups: gmane.emacs.bugs Subject: bug#16475: enhancement request: remove vertical scroll bar automatically when not needed Date: Thu, 26 Oct 2017 09:03:10 -0700 Message-ID: References: <8bfbddfb-237e-47b1-aed7-b28fc97d1f92@default> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Trace: blaine.gmane.org 1509033870 28600 195.159.176.226 (26 Oct 2017 16:04:30 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 26 Oct 2017 16:04:30 +0000 (UTC) Cc: 16475@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Oct 26 18:04:20 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e7kde-0005NC-Cb for geb-bug-gnu-emacs@m.gmane.org; Thu, 26 Oct 2017 18:04:11 +0200 Original-Received: from localhost ([::1]:53707 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e7kdj-0002Sd-Vy for geb-bug-gnu-emacs@m.gmane.org; Thu, 26 Oct 2017 12:04:16 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:49019) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e7kdZ-0002Ps-IM for bug-gnu-emacs@gnu.org; Thu, 26 Oct 2017 12:04:06 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1e7kdW-0000rV-C6 for bug-gnu-emacs@gnu.org; Thu, 26 Oct 2017 12:04:05 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:54840) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1e7kdW-0000rN-8Q for bug-gnu-emacs@gnu.org; Thu, 26 Oct 2017 12:04:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1e7kdV-0004f6-Vt for bug-gnu-emacs@gnu.org; Thu, 26 Oct 2017 12:04:02 -0400 X-Loop: help-debbugs@gnu.org In-Reply-To: <8bfbddfb-237e-47b1-aed7-b28fc97d1f92@default> Resent-From: Keith David Bershatsky Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 26 Oct 2017 16:04:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 16475 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 16475-submit@debbugs.gnu.org id=B16475.150903379617861 (code B ref 16475); Thu, 26 Oct 2017 16:04:01 +0000 Original-Received: (at 16475) by debbugs.gnu.org; 26 Oct 2017 16:03:16 +0000 Original-Received: from localhost ([127.0.0.1]:35288 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e7kcl-0004e1-Se for submit@debbugs.gnu.org; Thu, 26 Oct 2017 12:03:16 -0400 Original-Received: from gateway30.websitewelcome.com ([192.185.197.25]:40278) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e7kcj-0004ds-B5 for 16475@debbugs.gnu.org; Thu, 26 Oct 2017 12:03:13 -0400 Original-Received: from cm12.websitewelcome.com (cm12.websitewelcome.com [100.42.49.8]) by gateway30.websitewelcome.com (Postfix) with ESMTP id 7CCA479F2 for <16475@debbugs.gnu.org>; Thu, 26 Oct 2017 11:03:12 -0500 (CDT) Original-Received: from gator3053.hostgator.com ([50.87.144.69]) by cmsmtp with SMTP id 7kcieddo0DL8r7kcieUBws; Thu, 26 Oct 2017 11:03:12 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lawlist.com ; s=default; h=Content-Type:MIME-Version:Subject:Cc:To:From:Message-ID:Date: Sender:Reply-To:Content-Transfer-Encoding:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=6MxFR5EWmK1sI2sSQ4WhKYUitLRGKEeGJlLAqwsSK9g=; b=dejKL9Fswb+ydJmYEbplHMFBBF mqsM8yX1q4Fks++NF4S+gxscg3gUuKF5w/o45yUxuLkox8tShjzQwPI58EA+3/vOWui6gdaLrPsDt jplir+ogoFqgATrIRvrtqcTzQtBjwNxWedFqhZ8KdOoydYLYYz4J4F1kVg0KUrHq5Jqgx6S34/9Dw ymJBVgIua4OFF88N0w6GfIHJ70RzQA1YP9eLcNGM538hO1VvksQ/+DKzPnfjCPusFzwU7tA7qqwJ3 Rmbew9MPRR2Y6ed4+LT3HiK6vfuYruTq8vTaPJzQLoedwcQFXREPLP+ljFgDHkLIKDpwmNwVIccN1 hHqomqrw==; Original-Received: from cpe-45-48-239-195.socal.res.rr.com ([45.48.239.195]:49266 helo=server.private) by gator3053.hostgator.com with esmtpsa (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.87) (envelope-from ) id 1e7kch-000VLB-Fb; Thu, 26 Oct 2017 11:03:11 -0500 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator3053.hostgator.com X-AntiAbuse: Original Domain - debbugs.gnu.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - lawlist.com X-BWhitelist: no X-Source-IP: 45.48.239.195 X-Source-L: No X-Exim-ID: 1e7kch-000VLB-Fb X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: cpe-45-48-239-195.socal.res.rr.com (server.private) [45.48.239.195]:49266 X-Source-Auth: lawlist X-Email-Count: 2 X-Source-Cap: bGF3bGlzdDtsYXdsaXN0O2dhdG9yMzA1My5ob3N0Z2F0b3IuY29t X-Local-Domain: yes X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:139015 Archived-At: The values for window-start and window-end will not necessarily be accurate until somewhere towards the end of redisplay. A test that relies upon those values to add/remove scroll bars will often fail. Keith ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; DATE: [10-26-2017 08:59:02] <26 Oct 2017 18:59:02 +0300> FROM: Eli Zaretskii > > * * * > > I agree, but then the right place to call this is not from redisplay, > but from keyboard.c, before it calls read_char (which calls > redisplay). set-window-scroll-bars triggers a redisplay cycle, so > calling it from (the end of) redisplay is not very wise, IMO.