[PATCH] emacs: breakout notmuch-show-advance functionality from notmuch-show-advance-and-archive
Pieter Praet
pieter at praet.org
Mon Jan 16 02:28:54 PST 2012
On Thu, 12 Jan 2012 18:04:10 +0100, Pieter Praet <pieter at praet.org> wrote:
> On Wed, 16 Nov 2011 23:47:53 +0100, Pieter Praet <pieter at praet.org> wrote:
> > On Sun, 13 Nov 2011 13:16:48 -0800, Jameson Graef Rollins <jrollins at finestructure.net> wrote:
> > > This patch breaks out much of the functionality of
> > > notmuch-show-advance-and-archive into a new function:
> > > notmuch-show-advance. This new function does all the advancing
> > > through a show buffer that notmuch-show-advance-and-archive did,
> > > without all the invasive thread archiving. The return value of
> > > notmuch-show-advance is nil if the bottom of the thread is not
> > > reached, and t if it is.
> > >
> > > notmuch-show-advance-and-archive is modified to just call
> > > notmuch-show-advance, and then call notmuch-show-archive-thread if the
> > > return value is true. In this way the previous functionality of
> > > notmuch-show-advance-and-archive is preserved.
> > >
> > > This provides a way for people to rebind the space bar to a more sane
> > > function if they don't like the default behavior.
> > > ---
> > > emacs/notmuch-show.el | 38 +++++++++++++++++++++++---------------
> > > 1 files changed, 23 insertions(+), 15 deletions(-)
> > >
> > > diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
> > > index d5c95d8..a7f3263 100644
> > > --- a/emacs/notmuch-show.el
> > > +++ b/emacs/notmuch-show.el
> > > @@ -1135,26 +1135,18 @@ All currently available key bindings:
> > >
> > > ;; Commands typically bound to keys.
> > >
> > > -(defun notmuch-show-advance-and-archive ()
> > > - "Advance through thread and archive.
> > > -
> > > -This command is intended to be one of the simplest ways to
> > > -process a thread of email. It does the following:
> > > +(defun notmuch-show-advance ()
> > > + "Advance through thread.
> > >
> > > If the current message in the thread is not yet fully visible,
> > > scroll by a near screenful to read more of the message.
> > >
> > > Otherwise, (the end of the current message is already within the
> > > -current window), advance to the next open message.
> > > -
> > > -Finally, if there is no further message to advance to, and this
> > > -last message is already read, then archive the entire current
> > > -thread, (remove the \"inbox\" tag from each message). Also kill
> > > -this buffer, and display the next thread from the search from
> > > -which this thread was originally shown."
> > > +current window), advance to the next open message."
> > > (interactive)
> > > (let* ((end-of-this-message (notmuch-show-message-bottom))
> > > - (visible-end-of-this-message (1- end-of-this-message)))
> > > + (visible-end-of-this-message (1- end-of-this-message))
> > > + (ret nil))
> > > (while (invisible-p visible-end-of-this-message)
> > > (setq visible-end-of-this-message
> > > (previous-single-char-property-change visible-end-of-this-message
> > > @@ -1173,8 +1165,24 @@ which this thread was originally shown."
> > > (notmuch-show-next-open-message))
> > >
> > > (t
> > > - ;; This is the last message - archive the thread.
> > > - (notmuch-show-archive-thread)))))
> > > + ;; This is the last message - change the return value
> > > + (setq ret t)))
> > > + ret))
> > > +
> > > +(defun notmuch-show-advance-and-archive ()
> > > + "Advance through thread and archive.
> > > +
> > > +This command is intended to be one of the simplest ways to
> > > +process a thread of email. It works exactly like
> > > +notmuch-show-advance, in that it scrolls through messages in a
> > > +show buffer, except that when it gets to the end of the buffer it
> > > +archives the entire current thread, (remove the \"inbox\" tag
> > > +from each message), kills the buffer, and displays the next
> > > +thread from the search from which this thread was originally
> > > +shown."
> > > + (interactive)
> > > + (if (notmuch-show-advance)
> > > + (notmuch-show-archive-thread)))
> > >
> > > (defun notmuch-show-rewind ()
> > > "Backup through the thread, (reverse scrolling compared to \\[notmuch-show-advance-and-archive]).
> > > --
> > > 1.7.7.1
> > >
> > > _______________________________________________
> > > notmuch mailing list
> > > notmuch at notmuchmail.org
> > > http://notmuchmail.org/mailman/listinfo/notmuch
> >
> >
> > Nice one!
> >
> > Signed-off-by: Pieter Praet <pieter at praet.org> ;)
> >
> >
> > This has also exposed a pre-existing bug: When the last visible message
> > is longer than a screenful and contains a *hidden* signature, you'll
> > never get to see the end of it.
> >
> > The culprit is presumably seeking shelter from the flyswatter @
> > `notmuch-show-message-extent' or one of its relatives: Cc'ing our
> > resident invisibility guru.
> >
> >
> > Peace
> >
> > --
> > Pieter
>
>
> FYI, this bug has been fixed by Aaron Ecay [1], commit 8392a7cc, which
> will be included in v0.12. Not accompanied by a test, though, so keep
> an eye out for regressions.
>
> Maybe the following might be of use to someone:
>
> #+begin_src sh
> msg_lines=25
> sh -c "stty rows 24 cols 80; \
> emacs -Q -nw --eval \
> '(progn
> (dotimes (i ${msg_lines}) (insert \"\n\"))
> (goto-char (point-min))
> (scroll-up nil)
> (princ (line-number-at-pos nil)))'"
> #+end_src
>
> This correctly returns "20", but when running the exact same thing
> with Emacs in batch mode (add '--batch' option), it returns "7" ?!?
>
>
Minor clarification, in the unlikely event anyone's wondering:
A result of "20" is correct because we have 24 lines of which 3 are
lost to interface (mode line, echo area and menu bar are enabled by
default), and another one is "lost" due to `scroll-up' moving point
to the penultimate visible line.
> Peace
>
> --
> Pieter
>
> [1] id:"1324563860-21986-1-git-send-email-aaronecay at gmail.com"
Peace
--
Pieter
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