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bug#5695: 23.1; wid-edit.el problems (was: widget-choose buffer lacking

From: Jan Djärv
Subject: bug#5695: 23.1; wid-edit.el problems (was: widget-choose buffer lacking options)
Date: Tue, 30 Mar 2010 20:32:59 +0200
User-agent: Thunderbird (X11/20100317)

Dani Moncayo skrev:

I've just noticed that the problem arises if (and only if) I start emacs
loading my .emacs file. So, i've been testing a bit and i've discovered that
the line that produces the problem is the one that sets the
next-screen-context-lines variable to 4.

Actually, it is the scroll-margin that does it.
When the menu is created, point is at the last line. Since you have scroll-margin set to 1, it scrolls up. You can't see that because you have no indication, but on a graphical terminal you can see that the scroll bar has moved a bit. Unfortunately there is no way to scroll the window, it is either select something or C-g. wid-edit.el tries to set a scroll-other-window command, but it somehow fails to work because of the default binding to keyboard-quit. And in any case, IT only scrolls down, not up.

So, the menu created by wid-edit.el should either (or both)

1) place point somewhere else, preferrably at the end of the first line.
2) provide a way to scroll the window. tmm-menubar does this so it can be done.

Someone familiar with wid-edit.el must look at this.

        Jan D.

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