mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-24 07:20:37 +00:00
655 lines
21 KiB
EmacsLisp
655 lines
21 KiB
EmacsLisp
;;; gnus-salt.el --- alternate summary mode interfaces for Gnus
|
|
;; Copyright (C) 1996 Free Software Foundation, Inc.
|
|
|
|
;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
|
|
|
|
;; This file is part of GNU Emacs.
|
|
|
|
;; GNU Emacs is free software; you can redistribute it and/or modify
|
|
;; it under the terms of the GNU General Public License as published by
|
|
;; the Free Software Foundation; either version 2, or (at your option)
|
|
;; any later version.
|
|
|
|
;; GNU Emacs is distributed in the hope that it will be useful,
|
|
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
;; GNU General Public License for more details.
|
|
|
|
;; You should have received a copy of the GNU General Public License
|
|
;; along with GNU Emacs; see the file COPYING. If not, write to the
|
|
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
;; Boston, MA 02111-1307, USA.
|
|
|
|
;;; Commentary:
|
|
|
|
;;; Code:
|
|
|
|
(require 'gnus)
|
|
(eval-when-compile (require 'cl))
|
|
|
|
;;;
|
|
;;; gnus-pick-mode
|
|
;;;
|
|
|
|
(defvar gnus-pick-mode nil
|
|
"Minor mode for providing a pick-and-read interface in Gnus summary buffers.")
|
|
|
|
(defvar gnus-pick-display-summary nil
|
|
"*Display summary while reading.")
|
|
|
|
(defvar gnus-pick-mode-hook nil
|
|
"Hook run in summary pick mode buffers.")
|
|
|
|
;;; Internal variables.
|
|
|
|
(defvar gnus-pick-mode-map nil)
|
|
|
|
(unless gnus-pick-mode-map
|
|
(setq gnus-pick-mode-map (make-sparse-keymap))
|
|
|
|
(gnus-define-keys
|
|
gnus-pick-mode-map
|
|
"t" gnus-uu-mark-thread
|
|
"T" gnus-uu-unmark-thread
|
|
" " gnus-summary-mark-as-processable
|
|
"u" gnus-summary-unmark-as-processable
|
|
"U" gnus-summary-unmark-all-processable
|
|
"v" gnus-uu-mark-over
|
|
"r" gnus-uu-mark-region
|
|
"R" gnus-uu-unmark-region
|
|
"e" gnus-uu-mark-by-regexp
|
|
"E" gnus-uu-mark-by-regexp
|
|
"b" gnus-uu-mark-buffer
|
|
"B" gnus-uu-unmark-buffer
|
|
"\r" gnus-pick-start-reading))
|
|
|
|
(defun gnus-pick-make-menu-bar ()
|
|
(unless (boundp 'gnus-pick-menu)
|
|
(easy-menu-define
|
|
gnus-pick-menu gnus-pick-mode-map ""
|
|
'("Pick"
|
|
("Pick"
|
|
["Article" gnus-summary-mark-as-processable t]
|
|
["Thread" gnus-uu-mark-thread t]
|
|
["Region" gnus-uu-mark-region t]
|
|
["Regexp" gnus-uu-mark-regexp t]
|
|
["Buffer" gnus-uu-mark-buffer t])
|
|
("Unpick"
|
|
["Article" gnus-summary-unmark-as-processable t]
|
|
["Thread" gnus-uu-unmark-thread t]
|
|
["Region" gnus-uu-unmark-region t]
|
|
["Regexp" gnus-uu-unmark-regexp t]
|
|
["Buffer" gnus-uu-unmark-buffer t])
|
|
["Start reading" gnus-pick-start-reading t]
|
|
["Switch pick mode off" gnus-pick-mode gnus-pick-mode]))))
|
|
|
|
(defun gnus-pick-mode (&optional arg)
|
|
"Minor mode for providing a pick-and-read interface in Gnus summary buffers.
|
|
|
|
\\{gnus-pick-mode-map}"
|
|
(interactive "P")
|
|
(when (eq major-mode 'gnus-summary-mode)
|
|
(make-local-variable 'gnus-pick-mode)
|
|
(setq gnus-pick-mode
|
|
(if (null arg) (not gnus-pick-mode)
|
|
(> (prefix-numeric-value arg) 0)))
|
|
(when gnus-pick-mode
|
|
;; Make sure that we don't select any articles upon group entry.
|
|
(make-local-variable 'gnus-auto-select-first)
|
|
(setq gnus-auto-select-first nil)
|
|
;; Set up the menu.
|
|
(when (and menu-bar-mode
|
|
(gnus-visual-p 'pick-menu 'menu))
|
|
(gnus-pick-make-menu-bar))
|
|
(unless (assq 'gnus-pick-mode minor-mode-alist)
|
|
(push '(gnus-pick-mode " Pick") minor-mode-alist))
|
|
(unless (assq 'gnus-pick-mode minor-mode-map-alist)
|
|
(push (cons 'gnus-pick-mode gnus-pick-mode-map)
|
|
minor-mode-map-alist))
|
|
(run-hooks 'gnus-pick-mode-hook))))
|
|
|
|
(defun gnus-pick-start-reading (&optional catch-up)
|
|
"Start reading the picked articles.
|
|
If given a prefix, mark all unpicked articles as read."
|
|
(interactive "P")
|
|
(unless gnus-newsgroup-processable
|
|
(error "No articles have been picked"))
|
|
(gnus-summary-limit-to-articles nil)
|
|
(when catch-up
|
|
(gnus-summary-limit-mark-excluded-as-read))
|
|
(gnus-summary-first-unread-article)
|
|
(gnus-configure-windows (if gnus-pick-display-summary 'article 'pick) t))
|
|
|
|
|
|
;;;
|
|
;;; gnus-binary-mode
|
|
;;;
|
|
|
|
(defvar gnus-binary-mode nil
|
|
"Minor mode for provind a binary group interface in Gnus summary buffers.")
|
|
|
|
(defvar gnus-binary-mode-hook nil
|
|
"Hook run in summary binary mode buffers.")
|
|
|
|
(defvar gnus-binary-mode-map nil)
|
|
|
|
(unless gnus-binary-mode-map
|
|
(setq gnus-binary-mode-map (make-sparse-keymap))
|
|
|
|
(gnus-define-keys
|
|
gnus-binary-mode-map
|
|
"g" gnus-binary-show-article))
|
|
|
|
(defun gnus-binary-make-menu-bar ()
|
|
(unless (boundp 'gnus-binary-menu)
|
|
(easy-menu-define
|
|
gnus-binary-menu gnus-binary-mode-map ""
|
|
'("Pick"
|
|
["Switch binary mode off" gnus-binary-mode t]))))
|
|
|
|
(defun gnus-binary-mode (&optional arg)
|
|
"Minor mode for providing a binary group interface in Gnus summary buffers."
|
|
(interactive "P")
|
|
(when (eq major-mode 'gnus-summary-mode)
|
|
(make-local-variable 'gnus-binary-mode)
|
|
(setq gnus-binary-mode
|
|
(if (null arg) (not gnus-binary-mode)
|
|
(> (prefix-numeric-value arg) 0)))
|
|
(when gnus-binary-mode
|
|
;; Make sure that we don't select any articles upon group entry.
|
|
(make-local-variable 'gnus-auto-select-first)
|
|
(setq gnus-auto-select-first nil)
|
|
(make-local-variable 'gnus-summary-display-article-function)
|
|
(setq gnus-summary-display-article-function 'gnus-binary-display-article)
|
|
;; Set up the menu.
|
|
(when (and menu-bar-mode
|
|
(gnus-visual-p 'binary-menu 'menu))
|
|
(gnus-binary-make-menu-bar))
|
|
(unless (assq 'gnus-binary-mode minor-mode-alist)
|
|
(push '(gnus-binary-mode " Binary") minor-mode-alist))
|
|
(unless (assq 'gnus-binary-mode minor-mode-map-alist)
|
|
(push (cons 'gnus-binary-mode gnus-binary-mode-map)
|
|
minor-mode-map-alist))
|
|
(run-hooks 'gnus-binary-mode-hook))))
|
|
|
|
(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 'automatic))
|
|
(gnus-uu-decode-uu))))
|
|
|
|
(defun gnus-binary-show-article (&optional arg)
|
|
"Bypass the binary functions and show the article."
|
|
(interactive "P")
|
|
(let (gnus-summary-display-article-function)
|
|
(gnus-summary-show-article arg)))
|
|
|
|
;;;
|
|
;;; gnus-tree-mode
|
|
;;;
|
|
|
|
(defvar gnus-tree-line-format "%(%[%3,3n%]%)"
|
|
"Format of tree elements.")
|
|
|
|
(defvar gnus-tree-minimize-window t
|
|
"If non-nil, minimize the tree buffer window.
|
|
If a number, never let the tree buffer grow taller than that number of
|
|
lines.")
|
|
|
|
(defvar gnus-selected-tree-face 'modeline
|
|
"*Face used for highlighting selected articles in the thread tree.")
|
|
|
|
(defvar gnus-tree-brackets '((?\[ . ?\]) (?\( . ?\))
|
|
(?\{ . ?\}) (?< . ?>))
|
|
"Brackets used in tree nodes.")
|
|
|
|
(defvar gnus-tree-parent-child-edges '(?- ?\\ ?|)
|
|
"Charaters used to connect parents with children.")
|
|
|
|
(defvar gnus-tree-mode-line-format "Gnus: %%b %S %Z"
|
|
"*The format specification for the tree mode line.")
|
|
|
|
(defvar gnus-generate-tree-function 'gnus-generate-vertical-tree
|
|
"*Function for generating a thread tree.
|
|
Two predefined functions are available:
|
|
`gnus-generate-horizontal-tree' and `gnus-generate-vertical-tree'.")
|
|
|
|
(defvar gnus-tree-mode-hook nil
|
|
"*Hook run in tree mode buffers.")
|
|
|
|
;;; Internal variables.
|
|
|
|
(defvar gnus-tree-line-format-alist
|
|
`((?n gnus-tmp-name ?s)
|
|
(?f gnus-tmp-from ?s)
|
|
(?N gnus-tmp-number ?d)
|
|
(?\[ gnus-tmp-open-bracket ?c)
|
|
(?\] gnus-tmp-close-bracket ?c)
|
|
(?s gnus-tmp-subject ?s)))
|
|
|
|
(defvar gnus-tree-mode-line-format-alist gnus-summary-mode-line-format-alist)
|
|
|
|
(defvar gnus-tree-mode-line-format-spec nil)
|
|
(defvar gnus-tree-line-format-spec nil)
|
|
|
|
(defvar gnus-tree-node-length nil)
|
|
(defvar gnus-selected-tree-overlay nil)
|
|
|
|
(defvar gnus-tree-displayed-thread nil)
|
|
|
|
(defvar gnus-tree-mode-map nil)
|
|
(put 'gnus-tree-mode 'mode-class 'special)
|
|
|
|
(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
|
|
|
|
"\C-c\C-i" gnus-info-find-node)
|
|
|
|
(substitute-key-definition
|
|
'undefined 'gnus-tree-read-summary-keys gnus-tree-mode-map))
|
|
|
|
(defun gnus-tree-make-menu-bar ()
|
|
(unless (boundp 'gnus-tree-menu)
|
|
(easy-menu-define
|
|
gnus-tree-menu gnus-tree-mode-map ""
|
|
'("Tree"
|
|
["Select article" gnus-tree-select-article t]))))
|
|
|
|
(defun gnus-tree-mode ()
|
|
"Major mode for displaying thread trees."
|
|
(interactive)
|
|
(setq gnus-tree-mode-line-format-spec
|
|
(gnus-parse-format gnus-tree-mode-line-format
|
|
gnus-summary-mode-line-format-alist))
|
|
(setq gnus-tree-line-format-spec
|
|
(gnus-parse-format gnus-tree-line-format
|
|
gnus-tree-line-format-alist t))
|
|
(when (and menu-bar-mode
|
|
(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 (current-buffer))
|
|
(setq buffer-read-only t)
|
|
(setq truncate-lines t)
|
|
(save-excursion
|
|
(gnus-set-work-buffer)
|
|
(gnus-tree-node-insert (make-mail-header "") nil)
|
|
(setq gnus-tree-node-length (1- (point))))
|
|
(run-hooks 'gnus-tree-mode-hook))
|
|
|
|
(defun gnus-tree-read-summary-keys (&optional arg)
|
|
"Read a summary buffer key sequence and execute it."
|
|
(interactive "P")
|
|
(let ((buf (current-buffer))
|
|
win)
|
|
(gnus-article-read-summary-keys arg nil t)
|
|
(when (setq win (get-buffer-window buf))
|
|
(select-window win)
|
|
(when gnus-selected-tree-overlay
|
|
(goto-char (or (gnus-overlay-end gnus-selected-tree-overlay) 1)))
|
|
(gnus-tree-minimize))))
|
|
|
|
(defun gnus-tree-select-article (article)
|
|
"Select the article under point, if any."
|
|
(interactive (list (gnus-tree-article-number)))
|
|
(let ((buf (current-buffer)))
|
|
(when article
|
|
(save-excursion
|
|
(set-buffer gnus-summary-buffer)
|
|
(gnus-summary-goto-article article))
|
|
(select-window (get-buffer-window buf)))))
|
|
|
|
(defun gnus-tree-pick-article (e)
|
|
"Select the article under the mouse pointer."
|
|
(interactive "e")
|
|
(mouse-set-point e)
|
|
(gnus-tree-select-article (gnus-tree-article-number)))
|
|
|
|
(defun gnus-tree-article-number ()
|
|
(get-text-property (point) 'gnus-number))
|
|
|
|
(defun gnus-tree-article-region (article)
|
|
"Return a cons with BEG and END of the article region."
|
|
(let ((pos (text-property-any (point-min) (point-max) 'gnus-number article)))
|
|
(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))
|
|
(tree-window (get-buffer-window gnus-tree-buffer t)))
|
|
(when tree-window
|
|
(select-window tree-window)
|
|
(when gnus-selected-tree-overlay
|
|
(goto-char (or (gnus-overlay-end gnus-selected-tree-overlay) 1)))
|
|
(let* ((top (cond ((< (window-height) 4) 0)
|
|
((< (window-height) 7) 1)
|
|
(t 2)))
|
|
(height (1- (window-height)))
|
|
(bottom (save-excursion (goto-char (point-max))
|
|
(forward-line (- height))
|
|
(point))))
|
|
;; Set the window start to either `bottom', which is the biggest
|
|
;; possible valid number, or the second line from the top,
|
|
;; whichever is the least.
|
|
(set-window-start
|
|
tree-window (min bottom (save-excursion
|
|
(forward-line (- top)) (point)))))
|
|
(select-window selected))))
|
|
|
|
(defun gnus-get-tree-buffer ()
|
|
"Return the tree buffer properly initialized."
|
|
(save-excursion
|
|
(set-buffer (get-buffer-create gnus-tree-buffer))
|
|
(unless (eq major-mode 'gnus-tree-mode)
|
|
(gnus-add-current-to-buffer-list)
|
|
(gnus-tree-mode))
|
|
(current-buffer)))
|
|
|
|
(defun gnus-tree-minimize ()
|
|
(when (and gnus-tree-minimize-window
|
|
(not (one-window-p)))
|
|
(let ((windows 0)
|
|
tot-win-height)
|
|
(walk-windows (lambda (window) (incf windows)))
|
|
(setq tot-win-height
|
|
(- (frame-height)
|
|
(* window-min-height (1- windows))
|
|
2))
|
|
(let* ((window-min-height 2)
|
|
(height (count-lines (point-min) (point-max)))
|
|
(min (max (1- window-min-height) height))
|
|
(tot (if (numberp gnus-tree-minimize-window)
|
|
(min gnus-tree-minimize-window min)
|
|
min))
|
|
(win (get-buffer-window (current-buffer)))
|
|
(wh (and win (1- (window-height win)))))
|
|
(setq tot (min tot tot-win-height))
|
|
(when (and win
|
|
(not (eq tot wh)))
|
|
(let ((selected (selected-window)))
|
|
(select-window win)
|
|
(enlarge-window (- tot wh))
|
|
(select-window selected)))))))
|
|
|
|
;;; Generating the tree.
|
|
|
|
(defun gnus-tree-node-insert (header sparse &optional adopted)
|
|
(let* ((dummy (stringp header))
|
|
(header (if (vectorp header) header
|
|
(progn
|
|
(setq header (make-mail-header "*****"))
|
|
(mail-header-set-number header 0)
|
|
(mail-header-set-lines header 0)
|
|
(mail-header-set-chars header 0)
|
|
header)))
|
|
(gnus-tmp-from (mail-header-from header))
|
|
(gnus-tmp-subject (mail-header-subject header))
|
|
(gnus-tmp-number (mail-header-number header))
|
|
(gnus-tmp-name
|
|
(cond
|
|
((string-match "(.+)" gnus-tmp-from)
|
|
(substring gnus-tmp-from
|
|
(1+ (match-beginning 0)) (1- (match-end 0))))
|
|
((string-match "<[^>]+> *$" gnus-tmp-from)
|
|
(let ((beg (match-beginning 0)))
|
|
(or (and (string-match "^\"[^\"]*\"" gnus-tmp-from)
|
|
(substring gnus-tmp-from (1+ (match-beginning 0))
|
|
(1- (match-end 0))))
|
|
(substring gnus-tmp-from 0 beg))))
|
|
((memq gnus-tmp-number sparse)
|
|
"***")
|
|
(t gnus-tmp-from)))
|
|
(gnus-tmp-open-bracket
|
|
(cond ((memq gnus-tmp-number sparse)
|
|
(caadr gnus-tree-brackets))
|
|
(dummy (caaddr gnus-tree-brackets))
|
|
(adopted (car (nth 3 gnus-tree-brackets)))
|
|
(t (caar gnus-tree-brackets))))
|
|
(gnus-tmp-close-bracket
|
|
(cond ((memq gnus-tmp-number sparse)
|
|
(cdadr gnus-tree-brackets))
|
|
(adopted (cdr (nth 3 gnus-tree-brackets)))
|
|
(dummy
|
|
(cdaddr gnus-tree-brackets))
|
|
(t (cdar gnus-tree-brackets))))
|
|
(buffer-read-only nil)
|
|
beg end)
|
|
(gnus-add-text-properties
|
|
(setq beg (point))
|
|
(setq end (progn (eval gnus-tree-line-format-spec) (point)))
|
|
(list 'gnus-number gnus-tmp-number))
|
|
(when (or t (gnus-visual-p 'tree-highlight 'highlight))
|
|
(gnus-tree-highlight-node gnus-tmp-number beg end))))
|
|
|
|
(defun gnus-tree-highlight-node (article beg end)
|
|
"Highlight current line according to `gnus-summary-highlight'."
|
|
(let ((list gnus-summary-highlight)
|
|
face)
|
|
(save-excursion
|
|
(set-buffer gnus-summary-buffer)
|
|
(let* ((score (or (cdr (assq article gnus-newsgroup-scored))
|
|
gnus-summary-default-score 0))
|
|
(default gnus-summary-default-score)
|
|
(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))
|
|
(gnus-put-text-property
|
|
beg end 'face
|
|
(if (boundp face) (symbol-value face) face)))))
|
|
|
|
(defun gnus-tree-indent (level)
|
|
(insert (make-string (1- (* (1+ gnus-tree-node-length) level)) ? )))
|
|
|
|
(defvar gnus-tmp-limit)
|
|
(defvar gnus-tmp-sparse)
|
|
(defvar gnus-tmp-indent)
|
|
|
|
(defun gnus-generate-tree (thread)
|
|
"Generate a thread tree for THREAD."
|
|
(save-excursion
|
|
(set-buffer (gnus-get-tree-buffer))
|
|
(let ((buffer-read-only nil)
|
|
(gnus-tmp-indent 0))
|
|
(erase-buffer)
|
|
(funcall gnus-generate-tree-function thread 0)
|
|
(gnus-set-mode-line 'tree)
|
|
(goto-char (point-min))
|
|
(gnus-tree-minimize)
|
|
(gnus-tree-recenter)
|
|
(let ((selected (selected-window)))
|
|
(when (get-buffer-window (set-buffer gnus-tree-buffer) t)
|
|
(select-window (get-buffer-window (set-buffer gnus-tree-buffer) t))
|
|
(gnus-horizontal-recenter)
|
|
(select-window selected))))))
|
|
|
|
(defun gnus-generate-horizontal-tree (thread level &optional dummyp adopted)
|
|
"Generate a horizontal tree."
|
|
(let* ((dummy (stringp (car thread)))
|
|
(do (or dummy
|
|
(memq (mail-header-number (car thread)) gnus-tmp-limit)))
|
|
col beg)
|
|
(if (not do)
|
|
;; We don't want this article.
|
|
(setq thread (cdr thread))
|
|
(if (not (bolp))
|
|
;; Not the first article on the line, so we insert a "-".
|
|
(insert (car gnus-tree-parent-child-edges))
|
|
;; If the level isn't zero, then we insert some indentation.
|
|
(unless (zerop level)
|
|
(gnus-tree-indent level)
|
|
(insert (cadr gnus-tree-parent-child-edges))
|
|
(setq col (- (setq beg (point)) (gnus-point-at-bol) 1))
|
|
;; Draw "|" lines upwards.
|
|
(while (progn
|
|
(forward-line -1)
|
|
(forward-char col)
|
|
(= (following-char) ? ))
|
|
(delete-char 1)
|
|
(insert (caddr gnus-tree-parent-child-edges)))
|
|
(goto-char beg)))
|
|
(setq dummyp nil)
|
|
;; Insert the article node.
|
|
(gnus-tree-node-insert (pop thread) gnus-tmp-sparse adopted))
|
|
(if (null thread)
|
|
;; End of the thread, so we go to the next line.
|
|
(unless (bolp)
|
|
(insert "\n"))
|
|
;; Recurse downwards in all children of this article.
|
|
(while thread
|
|
(gnus-generate-horizontal-tree
|
|
(pop thread) (if do (1+ level) level)
|
|
(or dummyp dummy) dummy)))))
|
|
|
|
(defsubst gnus-tree-indent-vertical ()
|
|
(let ((len (- (* (1+ gnus-tree-node-length) gnus-tmp-indent)
|
|
(- (point) (gnus-point-at-bol)))))
|
|
(when (> len 0)
|
|
(insert (make-string len ? )))))
|
|
|
|
(defsubst gnus-tree-forward-line (n)
|
|
(while (>= (decf n) 0)
|
|
(unless (zerop (forward-line 1))
|
|
(end-of-line)
|
|
(insert "\n")))
|
|
(end-of-line))
|
|
|
|
(defun gnus-generate-vertical-tree (thread level &optional dummyp adopted)
|
|
"Generate a vertical tree."
|
|
(let* ((dummy (stringp (car thread)))
|
|
(do (or dummy
|
|
(memq (mail-header-number (car thread)) gnus-tmp-limit)))
|
|
beg)
|
|
(if (not do)
|
|
;; We don't want this article.
|
|
(setq thread (cdr thread))
|
|
(if (not (save-excursion (beginning-of-line) (bobp)))
|
|
;; Not the first article on the line, so we insert a "-".
|
|
(progn
|
|
(gnus-tree-indent-vertical)
|
|
(insert (make-string (/ gnus-tree-node-length 2) ? ))
|
|
(insert (caddr gnus-tree-parent-child-edges))
|
|
(gnus-tree-forward-line 1))
|
|
;; If the level isn't zero, then we insert some indentation.
|
|
(unless (zerop gnus-tmp-indent)
|
|
(gnus-tree-forward-line (1- (* 2 level)))
|
|
(gnus-tree-indent-vertical)
|
|
(delete-char -1)
|
|
(insert (cadr gnus-tree-parent-child-edges))
|
|
(setq beg (point))
|
|
;; Draw "-" lines leftwards.
|
|
(while (progn
|
|
(forward-char -2)
|
|
(= (following-char) ? ))
|
|
(delete-char 1)
|
|
(insert (car gnus-tree-parent-child-edges)))
|
|
(goto-char beg)
|
|
(gnus-tree-forward-line 1)))
|
|
(setq dummyp nil)
|
|
;; Insert the article node.
|
|
(gnus-tree-indent-vertical)
|
|
(gnus-tree-node-insert (pop thread) gnus-tmp-sparse adopted)
|
|
(gnus-tree-forward-line 1))
|
|
(if (null thread)
|
|
;; End of the thread, so we go to the next line.
|
|
(progn
|
|
(goto-char (point-min))
|
|
(end-of-line)
|
|
(incf gnus-tmp-indent))
|
|
;; Recurse downwards in all children of this article.
|
|
(while thread
|
|
(gnus-generate-vertical-tree
|
|
(pop thread) (if do (1+ level) level)
|
|
(or dummyp dummy) dummy)))))
|
|
|
|
;;; Interface functions.
|
|
|
|
(defun gnus-possibly-generate-tree (article &optional force)
|
|
"Generate the thread tree for ARTICLE if it isn't displayed already."
|
|
(when (save-excursion
|
|
(set-buffer gnus-summary-buffer)
|
|
(and gnus-use-trees
|
|
(vectorp (gnus-summary-article-header article))))
|
|
(save-excursion
|
|
(let ((top (save-excursion
|
|
(set-buffer gnus-summary-buffer)
|
|
(gnus-cut-thread
|
|
(gnus-remove-thread
|
|
(mail-header-id
|
|
(gnus-summary-article-header article)) t))))
|
|
(gnus-tmp-limit gnus-newsgroup-limit)
|
|
(gnus-tmp-sparse gnus-newsgroup-sparse))
|
|
(when (or force
|
|
(not (eq top gnus-tree-displayed-thread)))
|
|
(gnus-generate-tree top)
|
|
(setq gnus-tree-displayed-thread top))))))
|
|
|
|
(defun gnus-tree-open (group)
|
|
(gnus-get-tree-buffer))
|
|
|
|
(defun gnus-tree-close (group)
|
|
;(gnus-kill-buffer gnus-tree-buffer)
|
|
)
|
|
|
|
(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 1 2))
|
|
'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 (get-buffer-window (set-buffer gnus-tree-buffer) t)
|
|
(select-window (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?!?
|
|
(save-excursion
|
|
(set-buffer gnus-tree-buffer)
|
|
(gnus-set-mode-line 'tree))
|
|
(set-buffer buf)))
|
|
|
|
(defun gnus-tree-highlight-article (article face)
|
|
(save-excursion
|
|
(set-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
|
|
(get-buffer-window (current-buffer) t) (cdr region))))))
|
|
|
|
;;; Allow redefinition of functions.
|
|
(gnus-ems-redefine)
|
|
|
|
(provide 'gnus-salt)
|
|
|
|
;;; gnus-salt.el ends here
|