From: martin rudalics <rudalics@gmx.at>
To: Davide Viti <zinosat@tiscali.it>
Cc: 998@emacsbugs.donarmstrong.com
Subject: bug#998: after split-window-horizontally scroll works only on first window
Date: Wed, 24 Sep 2008 11:35:21 +0200 [thread overview]
Message-ID: <48DA09D9.9010407@gmx.at> (raw)
In-Reply-To: <20080919112310.GK3430@zinosat.homelinux.com>
I've been able to reproduce the bug by clicking the small dart above the
scrollbar of a right window and subsequently scrolling the mouse-wheel.
In that case the `event' argument passed to `scroll-bar-toolkit-scroll'
invariantly names the left (sometimes the minibuffer) window. When I
sample the mouse explicitly the bug doesn't occur. Davide, could you
try to append the code below to your .emacs and see whether it makes the
bug go away?
Thanks, martin.
(defun scroll-bar-toolkit-scroll (event)
(interactive "e")
(let* ((end-position (event-end event))
(mouse-position (mouse-position))
(window
(condition-case nil
(window-at (cadr mouse-position) (cddr mouse-position)
(car mouse-position))
(error (nth 0 end-position))))
(part (nth 4 end-position))
before-scroll)
(unless (eq part 'end-scroll)
(with-selected-window window
(setq before-scroll (or point-before-scroll (point)))
(cond
((eq part 'above-handle)
(scroll-up '-))
((eq part 'below-handle)
(scroll-up nil))
((eq part 'ratio)
(let* ((portion-whole (nth 2 end-position))
(lines (scroll-bar-scale portion-whole
(1- (window-height)))))
(scroll-up (cond ((not (zerop lines)) lines)
((< (car portion-whole) 0) -1)
(t 1)))))
((eq part 'up)
(scroll-up -1))
((eq part 'down)
(scroll-up 1))
((eq part 'top)
(set-window-start window (point-min)))
((eq part 'bottom)
(goto-char (point-max))
(recenter))
((eq part 'handle)
(scroll-bar-drag-1 event))))
(sit-for 0)
(with-current-buffer (window-buffer window)
(setq point-before-scroll before-scroll)))))
next prev parent reply other threads:[~2008-09-24 9:35 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-18 13:44 bug#998: after split-window-horizontally scroll works only on first window Davide Viti
[not found] ` <48D29A54.2050605@gmx.at>
2008-09-19 6:50 ` Davide Viti
2008-09-19 7:01 ` martin rudalics
2008-09-19 7:35 ` Davide Viti
2008-09-19 8:42 ` martin rudalics
2008-09-19 11:23 ` Davide Viti
2008-09-19 11:36 ` martin rudalics
2008-09-24 9:35 ` martin rudalics [this message]
2008-09-29 13:26 ` Davide Viti
2008-09-30 8:58 ` martin rudalics
2008-09-30 14:20 ` Stefan Monnier
2008-09-30 14:33 ` martin rudalics
2008-09-30 16:01 ` Stefan Monnier
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