Single-window mode is meant to minimize mu4e window operations (opening,
killing, resizing, etc) and buffer changes, while still retaining the
view and headers buffers. In addition, it replaces mu4e main view with a
minibuffer prompt containing the same information.
When you have multiple mu home directories, e.g. for the use case
detailed in my "Changing mu4e-{maildir,mu-home} from a context hook"
post to the mailing list it's quite inconvenient to have to hammer out
"mu --muhome=.. find .." every time you want to run some ad-hoc
command.
This allows me to set up a screen session where I do searches in mu
directory A in some screen panes, and searches in directory B in
others.
I initially called this MU_MUHOME but then I noticed that the perl
plugin has MUP_MU_HOME for analogous functionality, so I'm just
following its example.
The code I'm adding in mu-util.c is just a copy/paste & adjustment of
the same sort of already tested functionality in
mu_util_guess_maildir() just a few lines earlier.
Add a user-agent property to the full message sexps (i.e., the ones
available in mu4e-view). This property contains either the User-Agent or
X-Mailer string (and is absent otherwise)
This was merged in as part of pull request #718 but changed to a more
general facility in 7716e00.
It's fantastic that we have the more general hook facility for any
search, but the primary use-case I had for the bookmark hook can't be
satisfied by the more general mu4e-headers-search-pre-hook.
The reason I added this hook was to emulate the folders I used in
Icedove as mu4e bookmarks. E.g. some folders are threaded, others are
not. By default mu4e only allows you to set this globally via options
like mu4e-headers-show-threads.
So I have a mu4e-headers-search-bookmark-hook which is basically a long
line of cond statements like:
((string-equal expr "NOT flag:trashed AND date:365d..now AND (flag:flagged)")
(setq mu4e-headers-show-threads nil)
(setq mu4e-headers-include-related nil)
(setq mu4e-headers-skip-duplicates t)
(setq mu4e-headers-results-limit 500))
For this to work properly it's critical that the hook doesn't execute on
any search, but *only* those where we enter it via the bookmark.
As an example, I have a "b+" search which finds messages I've flagged,
most of my searches have related & threading turned on, but for that
search I only want to show the specific messages I've flagged, so the
hook turns both of those settings off before executing the search.
But I might still want to change my mind and look at the related
messages as threads by pressing P and then W. This works with the
mu4e-headers-search-bookmark-hook because it only executes when we get
the search via a bookmark.
But it doesn't work with the mu4e-headers-search-pre-hook because when I
toggle the setting my settings hook (which matches the search executed
by the bookmark) will just turn it back off again.
Perhaps there's some clever way to know if we're getting to the
mu4e-headers-search-pre-hook via the bookmark that I've missed. But if
there isn't I need a hook that works like this.
Add `mu4e-view-toggle-html' for toggling between html and text display
of messages (when available); keybinding 'h'. Document this.
The new default keybinging for mu4e-view-toggle-hide-cited becomes '#'.
When user removes the In-Reply-To header, also remove the (hidden)
References header when sending the message, effectively making the
message appear at the top-level.
Mention in the doc, NEWS.
