;;; gnus-topic.el --- a folding minor mode for Gnus group buffers
-;; Copyright (C) 1995,96,97,98,99 Free Software Foundation, Inc.
+;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
+;; Free Software Foundation, Inc.
;; Author: Ilja Weis <kult@uni-paderborn.de>
;; Lars Magne Ingebrigtsen <larsi@gnus.org>
(gnus-group-topic group))))
(defun gnus-topic-goto-topic (topic)
- "Go to TOPIC."
(when topic
(gnus-goto-char (text-property-any (point-min) (point-max)
'gnus-topic (intern topic)))))
+(defun gnus-topic-jump-to-topic (topic)
+ "Go to TOPIC."
+ (interactive
+ (list (completing-read "Go to topic: "
+ (mapcar 'list (gnus-topic-list))
+ nil t)))
+ (dolist (topic (gnus-current-topics topic))
+ (gnus-topic-fold t))
+ (gnus-topic-goto-topic topic))
+
(defun gnus-current-topic ()
"Return the name of the current topic."
(let ((result
(beginning-of-line)
(get-text-property (point) 'gnus-active)))
-(defun gnus-topic-find-groups (topic &optional level all lowest)
- "Return entries for all visible groups in TOPIC."
+(defun gnus-topic-find-groups (topic &optional level all lowest recursive)
+ "Return entries for all visible groups in TOPIC.
+If RECURSIVE is t, return groups in its subtopics too."
(let ((groups (cdr (assoc topic gnus-topic-alist)))
info clevel unread group params visible-groups entry active)
(setq lowest (or lowest 1))
(if (member group gnus-zombie-list)
gnus-level-zombie gnus-level-killed))))
(and
- unread ; nil means that the group is dead.
+ info ; nil means that the group is dead.
(<= clevel level)
(>= clevel lowest) ; Is inside the level we want.
(or all
- (if (eq unread t)
+ (if (or (eq unread t)
+ (eq unread nil))
gnus-group-list-inactive-groups
(> unread 0))
(and gnus-list-groups-with-ticked-articles
(cdr (assq 'tick (gnus-info-marks info))))
- ; Has right readedness.
+ ;; Has right readedness.
;; Check for permanent visibility.
(and gnus-permanently-visible-groups
(string-match gnus-permanently-visible-groups group))
(cdr (assq 'visible params)))
;; Add this group to the list of visible groups.
(push (or entry group) visible-groups)))
- (nreverse visible-groups)))
+ (setq visible-groups (nreverse visible-groups))
+ (when recursive
+ (if (eq recursive t)
+ (setq recursive (cdr (gnus-topic-find-topology topic))))
+ (mapcar (lambda (topic-topology)
+ (setq visible-groups
+ (nconc visible-groups
+ (gnus-topic-find-groups
+ (caar topic-topology)
+ level all lowest topic-topology))))
+ (cdr recursive)))
+ visible-groups))
(defun gnus-topic-previous-topic (topic)
"Return the previous topic on the same level as TOPIC."
;;; Generating group buffers
-(defun gnus-group-prepare-topics (level &optional all lowest regexp list-topic topic-level)
+(defun gnus-group-prepare-topics (level &optional all lowest
+ regexp list-topic topic-level)
"List all newsgroups with unread articles of level LEVEL or lower.
Use the `gnus-group-topics' to sort the groups.
If ALL is non-nil, list groups that have no unread articles.
(entries (gnus-topic-find-groups
(car type) list-level
(or all
- (cdr (assq 'visible
+ (cdr (assq 'visible
(gnus-topic-hierarchical-parameters
(car type)))))
lowest))
(let ((data (cadr (gnus-topic-find-topology topic))))
(setcdr data
(list (if insert 'visible 'invisible)
- (if hide 'hide nil)
+ (caddr data)
(cadddr data))))
(if total-remove
(setq gnus-topic-alist
(car gnus-group-list-mode) (cdr gnus-group-list-mode)
nil nil topic level))
-(defun gnus-topic-fold (&optional insert)
+(defun gnus-topic-fold (&optional insert topic)
"Remove/insert the current topic."
- (let ((topic (gnus-group-topic-name)))
+ (let ((topic (or topic (gnus-group-topic-name))))
(when topic
(save-excursion
(if (not (gnus-group-active-topic-p))
(gnus-topic-update-unreads name unread)
(beginning-of-line)
;; Insert the text.
- (gnus-add-text-properties
- (point)
- (prog1 (1+ (point))
- (eval gnus-topic-line-format-spec))
- (list 'gnus-topic (intern name)
- 'gnus-topic-level level
- 'gnus-topic-unread unread
- 'gnus-active active-topic
- 'gnus-topic-visible visiblep))))
+ (if shownp
+ (gnus-add-text-properties
+ (point)
+ (prog1 (1+ (point))
+ (eval gnus-topic-line-format-spec))
+ (list 'gnus-topic (intern name)
+ 'gnus-topic-level level
+ 'gnus-topic-unread unread
+ 'gnus-active active-topic
+ 'gnus-topic-visible visiblep)))))
(defun gnus-topic-update-unreads (topic unreads)
(setq gnus-topic-unreads (delq (assoc topic gnus-topic-unreads)
(let* ((topic (gnus-group-topic group))
(groups (cdr (assoc topic gnus-topic-alist)))
(g (cdr (member group groups)))
- (unfound t))
+ (unfound t)
+ entry)
;; Try to jump to a visible group.
(while (and g (not (gnus-group-goto-group (car g) t)))
(pop g))
(when (and unfound
topic
(not (gnus-topic-goto-missing-topic topic)))
- (gnus-topic-insert-topic-line
- topic t t (car (gnus-topic-find-topology topic)) nil 0)))))
+ (let* ((top (gnus-topic-find-topology topic))
+ (children (cddr top))
+ (type (cadr top))
+ (unread 0)
+ (entries (gnus-topic-find-groups
+ (car type) (car gnus-group-list-mode)
+ (cdr gnus-group-list-mode))))
+ (while children
+ (incf unread (gnus-topic-unread (caar (pop children)))))
+ (while (setq entry (pop entries))
+ (when (numberp (car entry))
+ (incf unread (car entry))))
+ (gnus-topic-insert-topic-line
+ topic t t (car (gnus-topic-find-topology topic)) nil unread))))))
(defun gnus-topic-goto-missing-topic (topic)
(if (gnus-topic-goto-topic topic)
(let* ((top (gnus-topic-find-topology
(gnus-topic-parent-topic topic)))
(tp (reverse (cddr top))))
- (while (not (equal (caaar tp) topic))
- (setq tp (cdr tp)))
- (pop tp)
- (while (and tp
- (not (gnus-topic-goto-topic (caaar tp))))
- (pop tp))
- (if tp
- (gnus-topic-forward-topic 1)
- (gnus-topic-goto-missing-topic (caadr top))))
+ (if (not top)
+ (gnus-topic-insert-topic-line
+ topic t t (car (gnus-topic-find-topology topic)) nil 0)
+ (while (not (equal (caaar tp) topic))
+ (setq tp (cdr tp)))
+ (pop tp)
+ (while (and tp
+ (not (gnus-topic-goto-topic (caaar tp))))
+ (pop tp))
+ (if tp
+ (gnus-topic-forward-topic 1)
+ (gnus-topic-goto-missing-topic (caadr top)))))
nil))
(defun gnus-topic-update-topic-line (topic-name &optional reads)
"c" gnus-topic-copy-group
"h" gnus-topic-hide-topic
"s" gnus-topic-show-topic
+ "j" gnus-topic-jump-to-topic
"M" gnus-topic-move-matching
"C" gnus-topic-copy-matching
"\C-i" gnus-topic-indent
["Copy matching" gnus-topic-copy-matching t]
["Move matching" gnus-topic-move-matching t])
("Topics"
+ ["Goto" gnus-topic-jump-to-topic t]
["Show" gnus-topic-show-topic t]
["Hide" gnus-topic-hide-topic t]
["Delete" gnus-topic-delete t]
["Create" gnus-topic-create-topic t]
["Mark" gnus-topic-mark-topic t]
["Indent" gnus-topic-indent t]
+ ["Sort" gnus-topic-sort-topics t]
["Toggle hide empty" gnus-topic-toggle-display-empty-topics t]
["Edit parameters" gnus-topic-edit-parameters t])
["List active" gnus-topic-list-active t]))))
(if (null arg) (not gnus-topic-mode)
(> (prefix-numeric-value arg) 0)))
;; Infest Gnus with topics.
- (if (not gnus-topic-mode)
+ (if (not gnus-topic-mode)
(setq gnus-goto-missing-group-function nil)
(when (gnus-visual-p 'topic-menu 'menu)
(gnus-topic-make-menu-bar))
(gnus-set-format 'topic t)
- (gnus-add-minor-mode 'gnus-topic-mode " Topic" gnus-topic-mode-map)
+ (gnus-add-minor-mode 'gnus-topic-mode " Topic"
+ gnus-topic-mode-map nil (lambda (&rest junk)
+ (interactive)
+ (gnus-topic-mode nil t)))
(add-hook 'gnus-group-catchup-group-hook 'gnus-topic-update-topic)
(set (make-local-variable 'gnus-group-prepare-function)
'gnus-group-prepare-topics)
(if (gnus-group-topic-p)
(let ((gnus-group-list-mode
(if all (cons (if (numberp all) all 7) t) gnus-group-list-mode)))
- (gnus-topic-fold all))
+ (gnus-topic-fold all)
+ (gnus-dribble-touch))
(gnus-group-select-group all)))
(defun gnus-mouse-pick-topic (e)
(save-excursion
(gnus-message 5 "Expiring groups in %s..." topic)
(let ((gnus-group-marked
- (mapcar (lambda (entry) (car (nth 2 entry)))
- (gnus-topic-find-groups topic gnus-level-killed t))))
- (gnus-group-expire-articles nil))
+ (mapcar (lambda (entry) (car (nth 2 entry)))
+ (gnus-topic-find-groups topic gnus-level-killed t))))
+ (gnus-group-expire-articles nil))
(gnus-message 5 "Expiring groups in %s...done" topic))))
(defun gnus-topic-read-group (&optional all no-article group)
(gnus-group-list-groups)
(gnus-topic-goto-topic topic))
+;; FIXME:
+;; 1. When the marked groups are overlapped with the process
+;; region, the behavior of move or remove is not right.
+;; 2. Can't process on several marked groups with a same name,
+;; because gnus-group-marked only keeps one copy.
+
(defun gnus-topic-move-group (n topic &optional copyp)
"Move the next N groups to TOPIC.
If COPYP, copy the groups instead."
(interactive
(list current-prefix-arg
(completing-read "Move to topic: " gnus-topic-alist nil t)))
- (let ((groups (gnus-group-process-prefix n))
+ (let ((use-marked (and (not n) (not (gnus-region-active-p))
+ gnus-group-marked t))
+ (groups (gnus-group-process-prefix n))
(topicl (assoc topic gnus-topic-alist))
- (start-group (progn (forward-line 1) (gnus-group-group-name)))
(start-topic (gnus-group-topic-name))
+ (start-group (progn (forward-line 1) (gnus-group-group-name)))
entry)
- (mapcar
- (lambda (g)
- (gnus-group-remove-mark g)
- (when (and
- (setq entry (assoc (gnus-current-topic) gnus-topic-alist))
- (not copyp))
- (setcdr entry (gnus-delete-first g (cdr entry))))
- (nconc topicl (list g)))
- groups)
- (gnus-topic-enter-dribble)
- (if start-group
- (gnus-group-goto-group start-group)
- (gnus-topic-goto-topic start-topic))
- (gnus-group-list-groups)))
+ (if (and (not groups) (not copyp) start-topic)
+ (gnus-topic-move start-topic topic)
+ (mapcar
+ (lambda (g)
+ (gnus-group-remove-mark g use-marked)
+ (when (and
+ (setq entry (assoc (gnus-current-topic) gnus-topic-alist))
+ (not copyp))
+ (setcdr entry (gnus-delete-first g (cdr entry))))
+ (nconc topicl (list g)))
+ groups)
+ (gnus-topic-enter-dribble)
+ (if start-group
+ (gnus-group-goto-group start-group)
+ (gnus-topic-goto-topic start-topic))
+ (gnus-group-list-groups))))
-(defun gnus-topic-remove-group (&optional arg)
+(defun gnus-topic-remove-group (&optional n)
"Remove the current group from the topic."
(interactive "P")
- (gnus-group-iterate arg
- (lambda (group)
- (let ((topicl (assoc (gnus-current-topic) gnus-topic-alist))
- (buffer-read-only nil))
- (when (and topicl group)
- (gnus-delete-line)
- (gnus-delete-first group topicl))
- (gnus-topic-update-topic)
- (gnus-group-position-point)))))
+ (let ((use-marked (and (not n) (not (gnus-region-active-p))
+ gnus-group-marked t))
+ (groups (gnus-group-process-prefix n)))
+ (mapcar
+ (lambda (group)
+ (gnus-group-remove-mark group use-marked)
+ (let ((topicl (assoc (gnus-current-topic) gnus-topic-alist))
+ (buffer-read-only nil))
+ (when (and topicl group)
+ (gnus-delete-line)
+ (gnus-delete-first group topicl))
+ (gnus-topic-update-topic)))
+ groups)
+ (gnus-topic-enter-dribble)
+ (gnus-group-position-point)))
(defun gnus-topic-copy-group (n topic)
"Copy the current group to a topic."
(gnus-topic-find-topology topic nil nil gnus-topic-topology)
(gnus-topic-enter-dribble))
(gnus-group-kill-group n discard)
- (gnus-topic-update-topic)))
+ (if (not (gnus-group-topic-p))
+ (gnus-topic-update-topic)
+ ;; Move up one line so that we update the right topic.
+ (forward-line -1)
+ (gnus-topic-update-topic)
+ (forward-line 1))))
(defun gnus-topic-yank-group (&optional arg)
"Yank the last topic."
(setq alist (cdr alist))))))
(gnus-topic-update-topic)))
-(defun gnus-topic-hide-topic ()
- "Hide the current topic."
- (interactive)
+(defun gnus-topic-hide-topic (&optional permanent)
+ "Hide the current topic.
+If PERMANENT, make it stay hidden in subsequent sessions as well."
+ (interactive "P")
(when (gnus-current-topic)
(gnus-topic-goto-topic (gnus-current-topic))
- (gnus-topic-remove-topic nil nil 'hidden)))
-
-(defun gnus-topic-show-topic ()
- "Show the hidden topic."
- (interactive)
+ (if permanent
+ (setcar (cddr
+ (cadr
+ (gnus-topic-find-topology (gnus-current-topic))))
+ 'hidden))
+ (gnus-topic-remove-topic nil nil)))
+
+(defun gnus-topic-show-topic (&optional permanent)
+ "Show the hidden topic.
+If PERMANENT, make it stay shown in subsequent sessions as well."
+ (interactive "P")
(when (gnus-group-topic-p)
- (gnus-topic-remove-topic t nil 'shown)))
-
-(defun gnus-topic-mark-topic (topic &optional unmark)
- "Mark all groups in the topic with the process mark."
- (interactive (list (gnus-group-topic-name)))
+ (if (not permanent)
+ (gnus-topic-remove-topic t nil)
+ (let ((topic
+ (gnus-topic-find-topology
+ (completing-read "Show topic: " gnus-topic-alist nil t))))
+ (setcar (cddr (cadr topic)) nil)
+ (setcar (cdr (cadr topic)) 'visible)
+ (gnus-group-list-groups)))))
+
+(defun gnus-topic-mark-topic (topic &optional unmark recursive)
+ "Mark all groups in the TOPIC with the process mark.
+If RECURSIVE is t, mark its subtopics too."
+ (interactive (list (gnus-group-topic-name)
+ nil
+ (and current-prefix-arg t)))
(if (not topic)
(call-interactively 'gnus-group-mark-group)
(save-excursion
- (let ((groups (gnus-topic-find-groups topic gnus-level-killed t)))
+ (let ((groups (gnus-topic-find-groups topic gnus-level-killed t nil
+ recursive)))
(while groups
(funcall (if unmark 'gnus-group-remove-mark 'gnus-group-set-mark)
(gnus-info-group (nth 2 (pop groups)))))))))
-(defun gnus-topic-unmark-topic (topic &optional unmark)
- "Remove the process mark from all groups in the topic."
- (interactive (list (gnus-group-topic-name)))
+(defun gnus-topic-unmark-topic (topic &optional dummy recursive)
+ "Remove the process mark from all groups in the TOPIC.
+If RECURSIVE is t, unmark its subtopics too."
+ (interactive (list (gnus-group-topic-name)
+ nil
+ (and current-prefix-arg t)))
(if (not topic)
(call-interactively 'gnus-group-unmark-group)
- (gnus-topic-mark-topic topic t)))
+ (gnus-topic-mark-topic topic t recursive)))
(defun gnus-topic-get-new-news-this-topic (&optional n)
"Check for new news in the current topic."
(interactive "P")
(if (not (gnus-group-topic-p))
(gnus-group-get-new-news-this-group n)
- (gnus-topic-mark-topic (gnus-group-topic-name))
+ (gnus-topic-mark-topic (gnus-group-topic-name) nil (and n t))
(gnus-group-get-new-news-this-group)))
(defun gnus-topic-move-matching (regexp topic &optional copyp)
(interactive "P")
(gnus-topic-sort-groups 'gnus-group-sort-by-method reverse))
+(defun gnus-topic-sort-topics-1 (top reverse)
+ (if (cdr top)
+ (let ((subtop
+ (mapcar `(lambda (top)
+ (gnus-topic-sort-topics-1 top ,reverse))
+ (sort (cdr top)
+ '(lambda (t1 t2)
+ (string-lessp (caar t1) (caar t2)))))))
+ (setcdr top (if reverse (reverse subtop) subtop))))
+ top)
+
+(defun gnus-topic-sort-topics (&optional topic reverse)
+ "Sort topics in TOPIC alphabeticaly by topic name.
+If REVERSE, reverse the sorting order."
+ (interactive
+ (list (completing-read "Sort topics in : " gnus-topic-alist nil t
+ (gnus-current-topic))
+ current-prefix-arg))
+ (let ((topic-topology (or (and topic (cdr (gnus-topic-find-topology topic)))
+ gnus-topic-topology)))
+ (gnus-topic-sort-topics-1 topic-topology reverse)
+ (gnus-topic-enter-dribble)
+ (gnus-group-list-groups)
+ (gnus-topic-goto-topic topic)))
+
+(defun gnus-topic-move (current to)
+ "Move the CURRENT topic to TO."
+ (interactive
+ (list
+ (gnus-group-topic-name)
+ (completing-read "Move to topic: " gnus-topic-alist nil t)))
+ (unless (and current to)
+ (error "Can't find topic"))
+ (let ((current-top (cdr (gnus-topic-find-topology current)))
+ (to-top (cdr (gnus-topic-find-topology to))))
+ (unless current-top
+ (error "Can't find topic `%s'" current))
+ (unless to-top
+ (error "Can't find topic `%s'" to))
+ (if (gnus-topic-find-topology to current-top 0);; Don't care the level
+ (error "Can't move `%s' to its sub-level" current))
+ (gnus-topic-find-topology current nil nil 'delete)
+ (while (cdr to-top)
+ (setq to-top (cdr to-top)))
+ (setcdr to-top (list current-top))
+ (gnus-topic-enter-dribble)
+ (gnus-group-list-groups)
+ (gnus-topic-goto-topic current)))
+
+(defun gnus-subscribe-topics (newsgroup)
+ (catch 'end
+ (let (match gnus-group-change-level-function)
+ (dolist (topic (gnus-topic-list))
+ (when (and (setq match (cdr (assq 'subscribe
+ (gnus-topic-parameters topic))))
+ (string-match match newsgroup))
+ ;; Just subscribe the group.
+ (gnus-subscribe-alphabetically newsgroup)
+ ;; Add the group to the topic.
+ (nconc (assoc topic gnus-topic-alist) (list newsgroup))
+ (throw 'end t))))))
+
(provide 'gnus-topic)
;;; gnus-topic.el ends here
projects / gnus / blobdiff