From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Keith David Bershatsky Newsgroups: gmane.emacs.bugs Subject: bug#22404: 25.1.50; Forcing `window-scroll-functions` to run. Date: Tue, 19 Jan 2016 15:07:46 -0800 Message-ID: References: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 (generated by - "") Content-Type: text/plain; charset=US-ASCII X-Trace: ger.gmane.org 1453244905 2019 80.91.229.3 (19 Jan 2016 23:08:25 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 19 Jan 2016 23:08:25 +0000 (UTC) Cc: 22404@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Jan 20 00:08:13 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1aLfNk-00052U-73 for geb-bug-gnu-emacs@m.gmane.org; Wed, 20 Jan 2016 00:08:12 +0100 Original-Received: from localhost ([::1]:39599 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aLfNg-0003ZE-6n for geb-bug-gnu-emacs@m.gmane.org; Tue, 19 Jan 2016 18:08:08 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:58047) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aLfNd-0003Yv-6R for bug-gnu-emacs@gnu.org; Tue, 19 Jan 2016 18:08:06 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aLfNZ-00039B-VV for bug-gnu-emacs@gnu.org; Tue, 19 Jan 2016 18:08:05 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:37697) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aLfNZ-000394-Sp for bug-gnu-emacs@gnu.org; Tue, 19 Jan 2016 18:08:01 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84) (envelope-from ) id 1aLfNZ-0004JV-K7 for bug-gnu-emacs@gnu.org; Tue, 19 Jan 2016 18:08:01 -0500 X-Loop: help-debbugs@gnu.org In-Reply-To: Resent-From: Keith David Bershatsky Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 19 Jan 2016 23:08:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 22404 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 22404-submit@debbugs.gnu.org id=B22404.145324487616570 (code B ref 22404); Tue, 19 Jan 2016 23:08:01 +0000 Original-Received: (at 22404) by debbugs.gnu.org; 19 Jan 2016 23:07:56 +0000 Original-Received: from localhost ([127.0.0.1]:54150 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aLfNU-0004JC-BR for submit@debbugs.gnu.org; Tue, 19 Jan 2016 18:07:56 -0500 Original-Received: from cobb.liquidweb.com ([50.28.13.150]:36392) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aLfNT-0004Iz-2u for 22404@debbugs.gnu.org; Tue, 19 Jan 2016 18:07:55 -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; bh=4f6Uz2+8Lfa78xxVyko4uhmV8KcwzmVzEwWyiupL7pM=; b=M9esn6d6xNaNcJKFLAdARFe5hKMqpWbDT40gAtELTWk65r9p1u19+D7Eo+K2lMSZnMkCNV7lWw88HJfvQzWf16sQ60QIB68gDNx4pzaPKKiAcpQC7cRS+4K2YQ5gC11I; Original-Received: from cpe-45-48-239-195.socal.res.rr.com ([45.48.239.195]:52396 helo=server.local.localhost) by cobb.liquidweb.com with esmtp (Exim 4.82) (envelope-from ) id 1aLfNK-0005mJ-9W; Tue, 19 Jan 2016 18:07:46 -0500 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - cobb.liquidweb.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-Get-Message-Sender-Via: cobb.liquidweb.com: acl_c_relayhosts_text_entry: lawlist|lawlist.com 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:111777 Archived-At: The following example uses `pos-visible-in-window-p` to guess as to whether the WSF will run more than one time -- i.e., if point is not fully visible, then WSF will run again. [The last call to WSF is the most important so that the values of window-start and window-end are truly accurate.] In addition to the WSF trigger feature request, a more sophisticated C-source solution to ascertain whether the WSF will run more than one time would be helpful. (setq scroll-conservatively 101) (defun pch-fn () (let ((window-configuration-change-hook nil)) (set-window-buffer (selected-window) (current-buffer) 'keep-margins))) (add-hook 'post-command-hook 'pch-fn nil 'local) (defun wsf-fn (win start) (message "point: %s | win: %s | start: %s | end: %s" (if (pos-visible-in-window-p nil nil nil) "visible" "NOT visible") win start (window-end win t))) (add-hook 'window-scroll-functions 'wsf-fn nil 'local)