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Add support for displaying total number of groups in subgroups in Gnus

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* lisp/gnus/gnus-topic.el (gnus-topic-line-format)
(gnus-topic-line-format-alist, gnus-topic-prepare-topic)
(gnus-topic-insert-topic-line, )
(gnus-topic-display-missing-topic, )
(gnus-topic-update-topic-line):
Provide number of groups in subtopics for topic line display and
add 'G' element to be used for 'gnus-topic-line-format' variable

* doc/misc/gnus.texi (Topic Variables):
Document 'G' element for 'gnus-topic-line-format' variable (bug#49068).
This commit is contained in:
Alex Bochannek 2021-06-19 15:04:37 +02:00 • committed by Lars Ingebrigtsen
parent 75b68c3227
commit 6ea7e33846
2 changed files with 27 additions and 14 deletions
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2
doc/misc/gnus.texi
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@ -4126,6 +4126,8 @@ Visibility.
Level.
@item g
Number of groups in the topic.
@item G
Number of groups in the topic and all its subtopics.
@item a
Number of unread articles in the topic.
@item A

39
lisp/gnus/gnus-topic.el
View file

@ -54,6 +54,7 @@ with some simple extensions.
%n Topic name.
%v Nothing if the topic is visible, \"...\" otherwise.
%g Number of groups in the topic.
%G Number of groups in the topic and its subtopics.
%a Number of unread articles in the groups in the topic.
%A Number of unread articles in the groups in the topic and its subtopics.
@ -87,6 +88,7 @@ See Info node `(gnus)Formatting Variables'."
(?v visible ?s)
(?i indentation ?s)
(?g number-of-groups ?d)
(?G total-number-of-groups ?d)
(?a (gnus-topic-articles-in-topic entries) ?d)
(?A total-number-of-articles ?d)
(?l level ?d)))
@ -485,16 +487,18 @@ If LOWEST is non-nil, list all newsgroups of level LOWEST or higher."
If SILENT, don't insert anything. Return the number of unread
articles in the topic and its subtopics."
(let* ((type (pop topicl))
(entries-level (if gnus-group-listed-groups
gnus-level-killed
list-level))
(all (or predicate gnus-group-listed-groups
(cdr (assq 'visible
(gnus-topic-hierarchical-parameters
(car type))))))
(lowest (if gnus-group-listed-groups 0 lowest))
(entries (gnus-topic-find-groups
(car type)
(if gnus-group-listed-groups
gnus-level-killed
list-level)
(or predicate gnus-group-listed-groups
(cdr (assq 'visible
(gnus-topic-hierarchical-parameters
(car type)))))
(if gnus-group-listed-groups 0 lowest)))
(car type) entries-level all lowest))
(all-groups (gnus-topic-find-groups
(car type) entries-level all lowest t))
(visiblep (and (eq (nth 1 type) 'visible) (not silent)))
(gnus-group-indentation
(make-string (* gnus-topic-indent-level level) ? ))
@ -573,7 +577,7 @@ articles in the topic and its subtopics."
(gnus-topic-insert-topic-line
(car type) visiblep
(not (eq (nth 2 type) 'hidden))
level all-entries unread))
level all-entries unread all-groups))
(gnus-topic-update-unreads (car type) unread)
(gnus-group--setup-tool-bar-update beg end)
(goto-char end)
@ -627,10 +631,10 @@ articles in the topic and its subtopics."
(defvar gnus-tmp-header)
(defun gnus-topic-insert-topic-line (name visiblep shownp level entries
&optional unread)
&optional unread all-groups)
(gnus--\,@
(let ((vars '(indentation visible name level number-of-groups
total-number-of-articles entries)))
total-number-of-groups total-number-of-articles entries)))
`((with-suppressed-warnings ((lexical ,@vars))
,@(mapcar (lambda (s) `(defvar ,s)) vars)))))
(let* ((visible (if visiblep "" "..."))
@ -639,6 +643,7 @@ articles in the topic and its subtopics."
(indentation (make-string (* gnus-topic-indent-level level) ? ))
(total-number-of-articles unread)
(number-of-groups (length entries))
(total-number-of-groups (length all-groups))
(active-topic (eq gnus-topic-alist gnus-topic-active-alist))
gnus-tmp-header)
(gnus-topic-update-unreads name unread)
@ -731,6 +736,9 @@ articles in the topic and its subtopics."
(entries (gnus-topic-find-groups
(car type) (car gnus-group-list-mode)
(cdr gnus-group-list-mode)))
(all-groups (gnus-topic-find-groups
(car type) (car gnus-group-list-mode)
(cdr gnus-group-list-mode) nil t))
entry)
(while children
(cl-incf unread (gnus-topic-unread (caar (pop children)))))
@ -738,7 +746,7 @@ articles in the topic and its subtopics."
(when (numberp (car entry))
(cl-incf unread (car entry))))
(gnus-topic-insert-topic-line
topic t t (car (gnus-topic-find-topology topic)) nil unread)))
topic t t (car (gnus-topic-find-topology topic)) nil unread all-groups)))
(defun gnus-topic-goto-missing-topic (topic)
(if (gnus-topic-goto-topic topic)
@ -768,6 +776,9 @@ articles in the topic and its subtopics."
(entries (gnus-topic-find-groups
(car type) (car gnus-group-list-mode)
(cdr gnus-group-list-mode)))
(all-groups (gnus-topic-find-groups
(car type) (car gnus-group-list-mode)
(cdr gnus-group-list-mode) t))
(parent (gnus-topic-parent-topic topic-name))
(all-entries entries)
(unread 0)
@ -786,7 +797,7 @@ articles in the topic and its subtopics."
(gnus-topic-insert-topic-line
(car type) (gnus-topic-visible-p)
(not (eq (nth 2 type) 'hidden))
(gnus-group-topic-level) all-entries unread)
(gnus-group-topic-level) all-entries unread all-groups)
(gnus-delete-line)
(forward-line -1)
(setq new-unread (gnus-group-topic-unread)))