;;; gnus-salt.el --- alternate summary mode interfaces for Gnus
-;; Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005,
-;; 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+;; Copyright (C) 1996-1999, 2001-2014 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
(mouse-scroll-subr start-window
(1+ (- mouse-row bottom)))))))))))
(when (consp event)
- (let ((fun (key-binding (vector (car event)))))
+ (let (;; (fun (key-binding (vector (car event))))
+ )
;; Run the binding of the terminating up-event, if possible.
- ;; In the case of a multiple click, it gives the wrong results,
+ ;; In the case of a multiple click, it gives the wrong results,
;; because it would fail to set up a region.
(when nil
- ;; (and (= (mod mouse-selection-click-count 3) 0) (fboundp fun))
- ;; In this case, we can just let the up-event execute normally.
+ ;; (and (= (mod mouse-selection-click-count 3) 0) (fboundp fun))
+ ;; In this case, we can just let the up-event execute normally.
(let ((end (event-end event)))
;; Set the position in the event before we replay it,
;; because otherwise it may have a position in the wrong
;; buffer.
(setcar (cdr end) end-of-range)
;; Delete the overlay before calling the function,
- ;; because delete-overlay increases buffer-modified-tick.
+ ;; because delete-overlay increases buffer-modified-tick.
(push event unread-command-events))))))))
+(defvar scroll-in-place)
+
(defun gnus-pick-next-page ()
"Go to the next page. If at the end of the buffer, start reading articles."
(interactive)
(when (gnus-visual-p 'binary-menu 'menu)
(gnus-binary-make-menu-bar)))))
-(defun gnus-binary-display-article (article &optional all-header)
+(defun gnus-binary-display-article (article &optional _all-header)
"Run ARTICLE through the binary decode functions."
(when (gnus-summary-goto-subject article)
(let ((gnus-view-pseudos (or gnus-view-pseudos 'automatic)))
integer)
:group 'gnus-summary-tree)
-(defcustom gnus-selected-tree-face 'modeline
+(defcustom gnus-selected-tree-face 'mode-line
"*Face used for highlighting selected articles in the thread tree."
:type 'face
:group 'gnus-summary-tree)
;;; Internal variables.
+(defvar gnus-tmp-name)
+(defvar gnus-tmp-from)
+(defvar gnus-tmp-number)
+(defvar gnus-tmp-open-bracket)
+(defvar gnus-tmp-close-bracket)
+(defvar gnus-tmp-subject)
+
(defvar gnus-tree-line-format-alist
`((?n gnus-tmp-name ?s)
(?f gnus-tmp-from ?s)
(defvar gnus-tree-displayed-thread nil)
(defvar gnus-tree-inhibit nil)
-(defvar gnus-tree-mode-map nil)
-(put 'gnus-tree-mode 'mode-class 'special)
+(defvar gnus-tree-mode-map
+ (let ((map (make-keymap)))
+ (suppress-keymap map)
+ (gnus-define-keys
+ map
+ "\r" gnus-tree-select-article
+ gnus-mouse-2 gnus-tree-pick-article
+ "\C-?" gnus-tree-read-summary-keys
+ "h" gnus-tree-show-summary
-(unless gnus-tree-mode-map
- (setq gnus-tree-mode-map (make-keymap))
- (suppress-keymap gnus-tree-mode-map)
- (gnus-define-keys
- gnus-tree-mode-map
- "\r" gnus-tree-select-article
- gnus-mouse-2 gnus-tree-pick-article
- "\C-?" gnus-tree-read-summary-keys
- "h" gnus-tree-show-summary
+ "\C-c\C-i" gnus-info-find-node)
- "\C-c\C-i" gnus-info-find-node)
+ (substitute-key-definition
+ 'undefined 'gnus-tree-read-summary-keys map)
+ map))
- (substitute-key-definition
- 'undefined 'gnus-tree-read-summary-keys gnus-tree-mode-map))
+(put 'gnus-tree-mode 'mode-class 'special)
(defun gnus-tree-make-menu-bar ()
(unless (boundp 'gnus-tree-menu)
'("Tree"
["Select article" gnus-tree-select-article t]))))
-(defun gnus-tree-mode ()
+(define-derived-mode gnus-tree-mode fundamental-mode "Tree"
"Major mode for displaying thread trees."
- (interactive)
(gnus-set-format 'tree-mode)
(gnus-set-format 'tree t)
(when (gnus-visual-p 'tree-menu 'menu)
(gnus-tree-make-menu-bar))
- (kill-all-local-variables)
(gnus-simplify-mode-line)
- (setq mode-name "Tree")
- (setq major-mode 'gnus-tree-mode)
- (use-local-map gnus-tree-mode-map)
(buffer-disable-undo)
(setq buffer-read-only t)
(setq truncate-lines t)
- (save-excursion
+ (save-current-buffer
(gnus-set-work-buffer)
(gnus-tree-node-insert (make-mail-header "") nil)
- (setq gnus-tree-node-length (1- (point))))
- (gnus-run-mode-hooks 'gnus-tree-mode-hook))
+ (setq gnus-tree-node-length (1- (point)))))
(defun gnus-tree-read-summary-keys (&optional arg)
"Read a summary buffer key sequence and execute it."
(when pos
(cons pos (next-single-property-change pos 'gnus-number)))))
-(defun gnus-tree-goto-article (article)
- (let ((pos (text-property-any
- (point-min) (point-max) 'gnus-number article)))
- (when pos
- (goto-char pos))))
-
(defun gnus-tree-recenter ()
"Center point in the tree window."
(let ((selected (selected-window))
(defun gnus-get-tree-buffer ()
"Return the tree buffer properly initialized."
(with-current-buffer (gnus-get-buffer-create gnus-tree-buffer)
- (unless (eq major-mode 'gnus-tree-mode)
+ (unless (derived-mode-p 'gnus-tree-mode)
(gnus-tree-mode))
(current-buffer)))
(not (one-window-p)))
(let ((windows 0)
tot-win-height)
- (walk-windows (lambda (window) (incf windows)))
+ (walk-windows (lambda (_window) (incf windows)))
(setq tot-win-height
(- (frame-height)
(* window-min-height (1- windows))
(when (or t (gnus-visual-p 'tree-highlight 'highlight))
(gnus-tree-highlight-node gnus-tmp-number beg end))))
+(defmacro gnus--let-eval (bindings evalsym &rest body)
+ "Build an environment in which to evaluate expressions.
+BINDINGS is a `let'-style list of bindings to use for the environment.
+EVALSYM is then bound in BODY to a function that takes a sexp and evaluates
+it in the environment specified by BINDINGS."
+ (declare (indent 2) (debug ((&rest (sym form)) sym body)))
+ (if (eval '(ignore-errors (let ((x 3)) (eq (eval '(- x 1) '((x . 4))) x))))
+ ;; Use lexical vars if possible.
+ `(let* ((env (list ,@(mapcar (lambda (binding)
+ `(cons ',(car binding) ,(cadr binding)))
+ bindings)))
+ (,evalsym (lambda (exp) (eval exp env))))
+ ,@body)
+ `(let (,@bindings (,evalsym #'eval)) ,@body)))
+
(defun gnus-tree-highlight-node (article beg end)
"Highlight current line according to `gnus-summary-highlight'."
(let ((list gnus-summary-highlight)
face)
(with-current-buffer gnus-summary-buffer
- (let* ((score (or (cdr (assq article gnus-newsgroup-scored))
+ (let ((uncached (memq article gnus-newsgroup-undownloaded)))
+ (gnus--let-eval
+ ((score (or (cdr (assq article gnus-newsgroup-scored))
gnus-summary-default-score 0))
(default gnus-summary-default-score)
(default-high gnus-summary-default-high-score)
(default-low gnus-summary-default-low-score)
- (uncached (memq article gnus-newsgroup-undownloaded))
+ (uncached uncached)
(downloaded (not uncached))
(mark (or (gnus-summary-article-mark article) gnus-unread-mark)))
- ;; Eval the cars of the lists until we find a match.
- (while (and list
- (not (eval (caar list))))
- (setq list (cdr list)))))
- (unless (eq (setq face (cdar list)) (get-text-property beg 'face))
+ evalfun
+ ;; Eval the cars of the lists until we find a match.
+ (while (and list
+ (not (funcall evalfun (caar list))))
+ (setq list (cdr list))))))
+ (unless (eq (setq face (cdar list)) (gnus-get-text-property-excluding-characters-with-faces beg 'face))
(gnus-put-text-property-excluding-characters-with-faces
beg end 'face
(if (boundp face) (symbol-value face) face)))))
(gnus-generate-tree top)
(setq gnus-tree-displayed-thread top))))))
-(defun gnus-tree-open (group)
+(defun gnus-tree-open ()
(gnus-get-tree-buffer))
-(defun gnus-tree-close (group)
+(defun gnus-tree-close ()
(gnus-kill-buffer gnus-tree-buffer))
(defun gnus-tree-perhaps-minimize ()
(defun gnus-highlight-selected-tree (article)
"Highlight the selected article in the tree."
- (let ((buf (current-buffer))
- region)
- (set-buffer gnus-tree-buffer)
- (when (setq region (gnus-tree-article-region article))
- (when (or (not gnus-selected-tree-overlay)
- (gnus-extent-detached-p gnus-selected-tree-overlay))
- ;; Create a new overlay.
- (gnus-overlay-put
- (setq gnus-selected-tree-overlay
- (gnus-make-overlay (point-min) (1+ (point-min))))
- 'face gnus-selected-tree-face))
- ;; Move the overlay to the article.
- (gnus-move-overlay
- gnus-selected-tree-overlay (goto-char (car region)) (cdr region))
- (gnus-tree-minimize)
- (gnus-tree-recenter)
- (let ((selected (selected-window)))
- (when (gnus-get-buffer-window (set-buffer gnus-tree-buffer) t)
- (select-window (gnus-get-buffer-window (set-buffer gnus-tree-buffer) t))
- (gnus-horizontal-recenter)
- (select-window selected))))
-;; If we remove this save-excursion, it updates the wrong mode lines?!?
- (with-current-buffer gnus-tree-buffer
- (gnus-set-mode-line 'tree))
- (set-buffer buf)))
-
-(defun gnus-tree-highlight-article (article face)
- (with-current-buffer (gnus-get-tree-buffer)
- (let (region)
+ (when (buffer-live-p gnus-tree-buffer)
+ (let ((buf (current-buffer))
+ region)
+ (set-buffer gnus-tree-buffer)
(when (setq region (gnus-tree-article-region article))
- (gnus-put-text-property (car region) (cdr region) 'face face)
- (set-window-point
- (gnus-get-buffer-window (current-buffer) t) (cdr region))))))
+ (when (or (not gnus-selected-tree-overlay)
+ (gnus-extent-detached-p gnus-selected-tree-overlay))
+ ;; Create a new overlay.
+ (gnus-overlay-put
+ (setq gnus-selected-tree-overlay
+ (gnus-make-overlay (point-min) (1+ (point-min))))
+ 'face gnus-selected-tree-face))
+ ;; Move the overlay to the article.
+ (gnus-move-overlay
+ gnus-selected-tree-overlay (goto-char (car region)) (cdr region))
+ (gnus-tree-minimize)
+ (gnus-tree-recenter)
+ (let ((selected (selected-window)))
+ (when (gnus-get-buffer-window (set-buffer gnus-tree-buffer) t)
+ (select-window
+ (gnus-get-buffer-window (set-buffer gnus-tree-buffer) t))
+ (gnus-horizontal-recenter)
+ (select-window selected))))
+ ;; If we remove this save-excursion, it updates the wrong mode lines?!?
+ (with-current-buffer gnus-tree-buffer
+ (gnus-set-mode-line 'tree))
+ (set-buffer buf))))
-;;;
-;;; gnus-carpal
-;;;
-
-(defvar gnus-carpal-group-buffer-buttons
- '(("next" . gnus-group-next-unread-group)
- ("prev" . gnus-group-prev-unread-group)
- ("read" . gnus-group-read-group)
- ("select" . gnus-group-select-group)
- ("catch-up" . gnus-group-catchup-current)
- ("new-news" . gnus-group-get-new-news-this-group)
- ("toggle-sub" . gnus-group-unsubscribe-current-group)
- ("subscribe" . gnus-group-unsubscribe-group)
- ("kill" . gnus-group-kill-group)
- ("yank" . gnus-group-yank-group)
- ("describe" . gnus-group-describe-group)
- "list"
- ("subscribed" . gnus-group-list-groups)
- ("all" . gnus-group-list-all-groups)
- ("killed" . gnus-group-list-killed)
- ("zombies" . gnus-group-list-zombies)
- ("matching" . gnus-group-list-matching)
- ("post" . gnus-group-post-news)
- ("mail" . gnus-group-mail)
- ("local" . (lambda () (interactive) (gnus-group-news 0)))
- ("rescan" . gnus-group-get-new-news)
- ("browse-foreign" . gnus-group-browse-foreign)
- ("exit" . gnus-group-exit)))
-
-(defvar gnus-carpal-summary-buffer-buttons
- '("mark"
- ("read" . gnus-summary-mark-as-read-forward)
- ("tick" . gnus-summary-tick-article-forward)
- ("clear" . gnus-summary-clear-mark-forward)
- ("expirable" . gnus-summary-mark-as-expirable)
- "move"
- ("scroll" . gnus-summary-next-page)
- ("next-unread" . gnus-summary-next-unread-article)
- ("prev-unread" . gnus-summary-prev-unread-article)
- ("first" . gnus-summary-first-unread-article)
- ("best" . gnus-summary-best-unread-article)
- "article"
- ("headers" . gnus-summary-toggle-header)
- ("uudecode" . gnus-uu-decode-uu)
- ("enter-digest" . gnus-summary-enter-digest-group)
- ("fetch-parent" . gnus-summary-refer-parent-article)
- "mail"
- ("move" . gnus-summary-move-article)
- ("copy" . gnus-summary-copy-article)
- ("respool" . gnus-summary-respool-article)
- "threads"
- ("lower" . gnus-summary-lower-thread)
- ("kill" . gnus-summary-kill-thread)
- "post"
- ("post" . gnus-summary-post-news)
- ("local" . gnus-summary-news-other-window)
- ("mail" . gnus-summary-mail-other-window)
- ("followup" . gnus-summary-followup-with-original)
- ("reply" . gnus-summary-reply-with-original)
- ("cancel" . gnus-summary-cancel-article)
- "misc"
- ("exit" . gnus-summary-exit)
- ("fed-up" . gnus-summary-catchup-and-goto-next-group)))
-
-(defvar gnus-carpal-server-buffer-buttons
- '(("add" . gnus-server-add-server)
- ("browse" . gnus-server-browse-server)
- ("list" . gnus-server-list-servers)
- ("kill" . gnus-server-kill-server)
- ("yank" . gnus-server-yank-server)
- ("copy" . gnus-server-copy-server)
- ("exit" . gnus-server-exit)))
-
-(defvar gnus-carpal-browse-buffer-buttons
- '(("subscribe" . gnus-browse-unsubscribe-current-group)
- ("exit" . gnus-browse-exit)))
-
-(defvar gnus-carpal-group-buffer "*Carpal Group*")
-(defvar gnus-carpal-summary-buffer "*Carpal Summary*")
-(defvar gnus-carpal-server-buffer "*Carpal Server*")
-(defvar gnus-carpal-browse-buffer "*Carpal Browse*")
-
-(defvar gnus-carpal-attached-buffer nil)
-
-(defvar gnus-carpal-mode-hook nil
- "*Hook run in carpal mode buffers.")
-
-(defvar gnus-carpal-button-face 'bold
- "*Face used on carpal buttons.")
-
-(defvar gnus-carpal-header-face 'bold-italic
- "*Face used on carpal buffer headers.")
-
-(defvar gnus-carpal-mode-map nil)
-(put 'gnus-carpal-mode 'mode-class 'special)
-
-(if gnus-carpal-mode-map
- nil
- (setq gnus-carpal-mode-map (make-keymap))
- (suppress-keymap gnus-carpal-mode-map)
- (define-key gnus-carpal-mode-map " " 'gnus-carpal-select)
- (define-key gnus-carpal-mode-map "\r" 'gnus-carpal-select)
- (define-key gnus-carpal-mode-map gnus-mouse-2 'gnus-carpal-mouse-select))
-
-(defun gnus-carpal-mode ()
- "Major mode for clicking buttons.
-
-All normal editing commands are switched off.
-\\<gnus-carpal-mode-map>
-The following commands are available:
-
-\\{gnus-carpal-mode-map}"
- (interactive)
- (kill-all-local-variables)
- (setq mode-line-modified (cdr gnus-mode-line-modified))
- (setq major-mode 'gnus-carpal-mode)
- (setq mode-name "Gnus Carpal")
- (setq mode-line-process nil)
- (use-local-map gnus-carpal-mode-map)
- (buffer-disable-undo)
- (setq buffer-read-only t)
- (make-local-variable 'gnus-carpal-attached-buffer)
- (gnus-run-mode-hooks 'gnus-carpal-mode-hook))
-
-(defun gnus-carpal-setup-buffer (type)
- (let ((buffer (symbol-value (intern (format "gnus-carpal-%s-buffer" type)))))
- (if (get-buffer buffer)
- ()
- (with-current-buffer (gnus-get-buffer-create buffer)
- (gnus-carpal-mode)
- (setq gnus-carpal-attached-buffer
- (intern (format "gnus-%s-buffer" type)))
- (let ((buttons (symbol-value
- (intern (format "gnus-carpal-%s-buffer-buttons"
- type))))
- (buffer-read-only nil)
- button)
- (while buttons
- (setq button (car buttons)
- buttons (cdr buttons))
- (if (stringp button)
- (set-text-properties
- (point)
- (prog2 (insert button) (point) (insert " "))
- (list 'face gnus-carpal-header-face))
- (set-text-properties
- (point)
- (prog2 (insert (car button)) (point) (insert " "))
- (list 'gnus-callback (cdr button)
- 'face gnus-carpal-button-face
- gnus-mouse-face-prop 'highlight))))
- (let ((fill-column (- (window-width) 2)))
- (fill-region (point-min) (point-max)))
- (set-window-point (get-buffer-window (current-buffer))
- (point-min)))))))
-
-(defun gnus-carpal-select ()
- "Select the button under point."
- (interactive)
- (let ((func (get-text-property (point) 'gnus-callback)))
- (if (null func)
- ()
- (pop-to-buffer (symbol-value gnus-carpal-attached-buffer))
- (call-interactively func))))
-
-(defun gnus-carpal-mouse-select (event)
- "Select the button under the mouse pointer."
- (interactive "e")
- (mouse-set-point event)
- (gnus-carpal-select))
+(defun gnus-tree-highlight-article (article face)
+ ;; The save-excursion here is apparently necessary because
+ ;; `set-window-point' somehow manages to alter the buffer position.
+ (save-excursion
+ (with-current-buffer (gnus-get-tree-buffer)
+ (let (region)
+ (when (setq region (gnus-tree-article-region article))
+ (gnus-put-text-property (car region) (cdr region) 'face face)
+ (set-window-point
+ (gnus-get-buffer-window (current-buffer) t) (cdr region)))))))
;;; Allow redefinition of functions.
(gnus-ems-redefine)