X-Git-Url: http://cgit.sxemacs.org/?a=blobdiff_plain;f=lisp%2Fgnus-topic.el;h=34f5a7b4cd3abaa7dfb2860e7cef2a58631f1c92;hb=6dec94a79261794ce4ce843a2780d23a4effa334;hp=c726db0424aafabab60c4d863b00d199684865e3;hpb=770101d392c3b409232795fae53e3e964e6a4a83;p=gnus

diff --git a/lisp/gnus-topic.el b/lisp/gnus-topic.el
index c726db042..34f5a7b4c 100644
--- a/lisp/gnus-topic.el
+++ b/lisp/gnus-topic.el
@@ -1,5 +1,5 @@
 ;;; gnus-topic.el --- a folding minor mode for Gnus group buffers
-;; Copyright (C) 1995,96,97,98 Free Software Foundation, Inc.
+;; Copyright (C) 1995,96,97,98,99 Free Software Foundation, Inc.
 
 ;; Author: Ilja Weis <kult@uni-paderborn.de>
 ;;	Lars Magne Ingebrigtsen <larsi@gnus.org>
@@ -31,6 +31,7 @@
 (require 'gnus)
 (require 'gnus-group)
 (require 'gnus-start)
+(require 'gnus-util)
 
 (defgroup gnus-topic nil
   "Group topics."
@@ -73,6 +74,7 @@ with some simple extensions.
 
 (defvar gnus-topic-active-topology nil)
 (defvar gnus-topic-active-alist nil)
+(defvar gnus-topic-unreads nil)
 
 (defvar gnus-topology-checked-p nil
   "Whether the topology has been checked in this session.")
@@ -108,9 +110,7 @@ with some simple extensions.
 
 (defun gnus-topic-unread (topic)
   "Return the number of unread articles in TOPIC."
-  (or (save-excursion
-	(and (gnus-topic-goto-topic topic)
-	     (gnus-group-topic-unread)))
+  (or (cdr (assoc topic gnus-topic-unreads))
       0))
 
 (defun gnus-group-topic-p ()
@@ -149,11 +149,20 @@ with some simple extensions.
       (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
@@ -203,16 +212,17 @@ If TOPIC, start with that topic."
 			 (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))
@@ -326,7 +336,7 @@ If TOPIC, start with that topic."
 
 (defun gnus-group-topic-parameters (group)
   "Compute the group parameters for GROUP taking into account inheritance from topics."
-  (let ((params-list (list (gnus-group-get-parameter group))))
+  (let ((params-list (copy-sequence (gnus-group-get-parameter group))))
     (save-excursion
       (gnus-group-goto-group group)
       (nconc params-list
@@ -348,7 +358,7 @@ If TOPIC, start with that topic."
 	(when (atom param)
 	  (setq param (cons param t)))
 	;; Override any old versions of this param.
-	(setq out (delq (assq (car param) out) out))
+	(gnus-pull (car param) out)
 	(push param out)))
     ;; Return the resulting parameter list.
     out))
@@ -361,7 +371,8 @@ If TOPIC, start with that 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.
@@ -416,7 +427,7 @@ articles in the topic and its subtopics."
 	 (entries (gnus-topic-find-groups
 		   (car type) list-level
 		   (or all
-		       (cdr (assq 'visible 
+		       (cdr (assq 'visible
 				  (gnus-topic-hierarchical-parameters
 				   (car type)))))
 		   lowest))
@@ -444,7 +455,8 @@ articles in the topic and its subtopics."
 	(if (stringp entry)
 	    ;; Dead groups.
 	    (gnus-group-insert-group-line
-	     entry (if (member entry gnus-zombie-list) gnus-level-zombie gnus-level-killed)
+	     entry (if (member entry gnus-zombie-list)
+		       gnus-level-zombie gnus-level-killed)
 	     nil (- (1+ (cdr (setq active (gnus-active entry))))
 		    (car active))
 	     nil)
@@ -471,6 +483,7 @@ articles in the topic and its subtopics."
        (car type) visiblep
        (not (eq (nth 2 type) 'hidden))
        level all-entries unread))
+    (gnus-topic-update-unreads (car type) unread)
     (goto-char end)
     unread))
 
@@ -504,9 +517,9 @@ articles in the topic and its subtopics."
    (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))
@@ -527,6 +540,7 @@ articles in the topic and its subtopics."
 	 (number-of-groups (length entries))
 	 (active-topic (eq gnus-topic-alist gnus-topic-active-alist))
 	 gnus-tmp-header)
+    (gnus-topic-update-unreads name unread)
     (beginning-of-line)
     ;; Insert the text.
     (gnus-add-text-properties
@@ -539,6 +553,11 @@ articles in the topic and its subtopics."
 	   '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)
+				 gnus-topic-unreads))
+  (push (cons topic unreads) gnus-topic-unreads))
+
 (defun gnus-topic-update-topics-containing-group (group)
   "Update all topics that have GROUP as a member."
   (when (and (eq major-mode 'gnus-group-mode)
@@ -599,15 +618,18 @@ articles in the topic and its subtopics."
     (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)
@@ -620,7 +642,7 @@ articles in the topic and its subtopics."
 	 (parent (gnus-topic-parent-topic topic-name))
 	 (all-entries entries)
 	 (unread 0)
-	 old-unread entry)
+	 old-unread entry new-unread)
     (when (gnus-topic-goto-topic (car type))
       ;; Tally all the groups that belong in this topic.
       (if reads
@@ -636,11 +658,14 @@ articles in the topic and its subtopics."
        (car type) (gnus-topic-visible-p)
        (not (eq (nth 2 type) 'hidden))
        (gnus-group-topic-level) all-entries unread)
-      (gnus-delete-line))
+      (gnus-delete-line)
+      (forward-line -1)
+      (setq new-unread (gnus-group-topic-unread)))
     (when parent
       (forward-line -1)
       (gnus-topic-update-topic-line
-       parent (- (or old-unread 0) (or (gnus-group-topic-unread) 0))))
+       parent
+       (- (or old-unread 0) (or new-unread 0))))
     unread))
 
 (defun gnus-topic-group-indentation ()
@@ -896,6 +921,7 @@ articles in the topic and its subtopics."
     "=" gnus-topic-select-group
     "\r" gnus-topic-select-group
     " " gnus-topic-read-group
+    "\C-c\C-x" gnus-topic-expire-articles
     "\C-k" gnus-topic-kill-group
     "\C-y" gnus-topic-yank-group
     "\M-g" gnus-topic-get-new-news-this-topic
@@ -903,6 +929,10 @@ articles in the topic and its subtopics."
     "Gp" gnus-topic-edit-parameters
     "#" gnus-topic-mark-topic
     "\M-#" gnus-topic-unmark-topic
+    [tab] gnus-topic-indent
+    [(meta tab)] gnus-topic-unindent
+    "\C-i" gnus-topic-indent
+    "\M-\C-i" gnus-topic-unindent
     gnus-mouse-2 gnus-mouse-pick-topic)
 
   ;; Define a new submap.
@@ -915,6 +945,7 @@ articles in the topic and its subtopics."
     "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
@@ -922,7 +953,7 @@ articles in the topic and its subtopics."
     "r" gnus-topic-rename
     "\177" gnus-topic-delete
     [delete] gnus-topic-delete
-    "h" gnus-topic-toggle-display-empty-topics)
+    "H" gnus-topic-toggle-display-empty-topics)
 
   (gnus-define-keys (gnus-topic-sort-map "S" gnus-group-topic-map)
     "s" gnus-topic-sort-groups
@@ -946,6 +977,7 @@ articles in the topic and its subtopics."
 	["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]
@@ -953,6 +985,7 @@ articles in the topic and its subtopics."
 	["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]))))
@@ -966,13 +999,12 @@ articles in the topic and its subtopics."
 	  (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)
-      (add-hook 'gnus-summary-exit-hook 'gnus-topic-update-topic)
       (add-hook 'gnus-group-catchup-group-hook 'gnus-topic-update-topic)
       (set (make-local-variable 'gnus-group-prepare-function)
 	   'gnus-group-prepare-topics)
@@ -1026,6 +1058,19 @@ If performed over a topic line, toggle folding the topic."
   (mouse-set-point e)
   (gnus-topic-read-group nil))
 
+(defun gnus-topic-expire-articles (topic)
+  "Expire articles in this topic or group."
+  (interactive (list (gnus-group-topic-name)))
+  (if (not topic)
+      (call-interactively 'gnus-group-expire-articles)
+    (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))
+      (gnus-message 5 "Expiring groups in %s...done" topic))))
+
 (defun gnus-topic-read-group (&optional all no-article group)
   "Read news in this newsgroup.
 If the prefix argument ALL is non-nil, already read articles become
@@ -1079,23 +1124,25 @@ If COPYP, copy the groups instead."
 	 (completing-read "Move to topic: " gnus-topic-alist nil t)))
   (let ((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)
+	 (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)
   "Remove the current group from the topic."
@@ -1266,7 +1313,11 @@ If COPYP, copy the groups instead."
 	   (read-string (format "Rename %s to: " topic)))))
   ;; Check whether the new name exists.
   (when (gnus-topic-find-topology new-name)
-    (error "Topic '%s' already exists"))
+    (error "Topic '%s' already exists" new-name))
+  ;; "nil" is an invalid name, for reasons I'd rather not go
+  ;; into here.  Trust me.
+  (when (equal new-name "nil")
+    (error "Invalid name: %s" nil))
   ;; Do the renaming.
   (let ((top (gnus-topic-find-topology old-name))
 	(entry (assoc old-name gnus-topic-alist)))
@@ -1276,7 +1327,8 @@ If COPYP, copy the groups instead."
       (setcar entry new-name))
     (forward-line -1)
     (gnus-dribble-touch)
-    (gnus-group-list-groups)))
+    (gnus-group-list-groups)
+    (forward-line 1)))
 
 (defun gnus-topic-indent (&optional unindent)
   "Indent a topic -- make it a sub-topic of the previous topic.
@@ -1430,6 +1482,68 @@ If REVERSE, sort in reverse order."
   (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