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mu4e: Replace mu4e-view-use-gnus with mu4e-view-use-old

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Make mu4e-view-use-gnus obsolete (it's the default now), and add a
variable mu4e-view-use-old (which must be set before starting mu4e).

Update documentation / mentions.

Load the correct view when starting mu4e, so people can customize
e.g. the keymap.

Add some sanity checking.
This commit is contained in:
Dirk-Jan C. Binnema
2021-03-16 19:49:27 +02:00
parent 342df5a3ed
commit 2437dc27c9
8 changed files with 52 additions and 60 deletions
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37
mu4e/mu4e.texi
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@ -1329,7 +1329,6 @@ q leave the message view
For the marking commands, please refer to @ref{Marking messages}.
@node MSGV Custom headers
@section Custom headers
@ -1361,11 +1360,18 @@ Since version 1.6 @t{mu4e} defaults to the new, Gnus-based, message view.
However, the older view is still available, and this chapter is about
that one. While we recommend using the default one, you can still use
the old one by configuring it:
the old one by configuring it @emph{before} @t{require}'ing @t{mu4e}:
@lisp
(setq mu4e-view-use-gnus nil)
(setq mu4e-view-use-old t)
@end lisp
Users of
@t{use-package}@footnote{@url{https://jwiegley.github.io/use-package/}}
can use the @t{:init} section for this.
If you want to change this, you need to fully restart @t{mu4e} (in
practice, this means you need to restart @t{emacs}.
After selecting a message in the @ref{Headers view}, it appears in a message
view window, which shows the message headers, followed by the message
body. Its major mode is @code{mu4e-view-mode}.
@ -3805,13 +3811,8 @@ Now, you can bind a convenient key to my-mu4e-bookmarks/body.
By default, mu4e presents iCalendar invitations as .vcs file
attachments. Experimental support is available to parse these
attachments in order to add the expected ``Accept'', ``Reject'', ``Add
to Calendar'' buttons. This requires using Gnus' article view, instead
of mu4e's internal viewer. We do this by setting the value of
mu4e-view-use-gnus:
@lisp
(setq mu4e-view-use-gnus t)
@end lisp
to Calendar'' buttons. This requires using Gnus' article view, which
is the default since @t{mu4e} version 1.6.
The minimal setup is:
@ -3838,22 +3839,6 @@ To enable optional functionality to capture iCalendar events to your org files:
NOTE: both the capture file and the headline(s) inside must already
exist.
These features require the Gnus article viewer. This is currently
experimental, and doesn't yet support all the features available with
mu4e's internal viewer. Consequently, you may want a way to toggle
between the two modes. You can do this with the following:
@lisp
(defun mu4e-toggle-gnus-view ()
(interactive)
(mu4e~view-quit-buffer)
(setq mu4e-view-use-gnus
(not mu4e-view-use-gnus))
(mu4e-headers-view-message))
(define-key mu4e-view-mode-map "i" 'mu4e-toggle-gnus-view)
@end lisp
@node Example configs
@appendix Example configs