;;; gnus-ems.el --- functions for making Gnus work under different Emacsen
-;; Copyright (C) 1995 Free Software Foundation, Inc.
+;; Copyright (C) 1995,96,97 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
;; Keywords: news
;; 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, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; 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:
+(eval-when-compile (require 'cl))
+
+;;; Function aliases later to be redefined for XEmacs usage.
+
+(defvar gnus-xemacs (string-match "XEmacs\\|Lucid" emacs-version)
+ "Non-nil if running under XEmacs.")
+
(defvar gnus-mouse-2 [mouse-2])
-(defvar gnus-easymenu 'easymenu)
-(defvar gnus-group-mode-hook ())
-(defvar gnus-summary-mode-hook ())
-(defvar gnus-article-mode-hook ())
+(defvar gnus-down-mouse-2 [down-mouse-2])
+(defvar gnus-mode-line-modified
+ (if (or gnus-xemacs
+ (< emacs-major-version 20))
+ '("--**-" . "-----")
+ '("**" "--")))
+
+(eval-and-compile
+ (autoload 'gnus-xmas-define "gnus-xmas")
+ (autoload 'gnus-xmas-redefine "gnus-xmas")
+ (autoload 'appt-select-lowest-window "appt"))
+
+(or (fboundp 'mail-file-babyl-p)
+ (fset 'mail-file-babyl-p 'rmail-file-p))
+
+;;; Mule functions.
+
+(defun gnus-mule-cite-add-face (number prefix face)
+ ;; At line NUMBER, ignore PREFIX and add FACE to the rest of the line.
+ (when face
+ (let ((inhibit-point-motion-hooks t)
+ from to)
+ (goto-line number)
+ (if (boundp 'MULE)
+ (forward-char (chars-in-string prefix))
+ (forward-char (length prefix)))
+ (skip-chars-forward " \t")
+ (setq from (point))
+ (end-of-line 1)
+ (skip-chars-backward " \t")
+ (setq to (point))
+ (when (< from to)
+ (gnus-overlay-put (gnus-make-overlay from to) 'face face)))))
-;; We do not byte-compile this file, because error messages are such a
-;; bore.
+(defun gnus-mule-max-width-function (el max-width)
+ (` (let* ((val (eval (, el)))
+ (valstr (if (numberp val)
+ (int-to-string val) val)))
+ (if (> (length valstr) (, max-width))
+ (truncate-string valstr (, max-width))
+ valstr))))
-(eval
- '(cond
+(defun gnus-encode-coding-string (string system)
+ string)
+
+(defun gnus-decode-coding-string (string system)
+ string)
+
+(eval-and-compile
+ (if (string-match "XEmacs\\|Lucid" emacs-version)
+ nil
+
+ (defvar gnus-mouse-face-prop 'mouse-face
+ "Property used for highlighting mouse regions."))
+
+ (cond
((string-match "XEmacs\\|Lucid" emacs-version)
- ;; XEmacs definitions.
-
- (setq gnus-mouse-2 [button2])
- (setq gnus-easymenu 'auc-menu)
-
- (or (memq 'underline (list-faces))
- (funcall (intern "make-face") 'underline))
- ;; Must avoid calling set-face-underline-p directly, because it
- ;; is a defsubst in emacs19, and will make the .elc files non
- ;; portable!
- (or (face-differs-from-default-p 'underline)
- (funcall 'set-face-underline-p 'underline t))
- (or (fboundp 'set-text-properties)
- (defun set-text-properties (start end props &optional buffer)
- (if props
- (put-text-property start end (car props) (cadr props) buffer)
- (remove-text-properties start end ()))))
-
- (or (fboundp 'make-overlay) (fset 'make-overlay 'make-extent))
- (or (fboundp 'overlay-put) (fset 'overlay-put 'set-extent-property))
- (or (fboundp 'move-overlay)
- (defun move-overlay (extent start end &optional buffer)
- (set-extent-endpoints extent start end)))
- (or (boundp 'standard-display-table) (setq standard-display-table nil))
- (or (boundp 'read-event) (fset 'read-event 'next-command-event))
-
- (if (not gnus-visual)
- ()
- (setq gnus-group-mode-hook
- (cons
- (lambda ()
- (easy-menu-add gnus-group-reading-menu)
- (easy-menu-add gnus-group-group-menu)
- (easy-menu-add gnus-group-post-menu)
- (easy-menu-add gnus-group-misc-menu)
- (gnus-install-mouse-tracker))
- gnus-group-mode-hook))
- (setq gnus-summary-mode-hook
- (cons
- (lambda ()
- (easy-menu-add gnus-summary-mark-menu)
- (easy-menu-add gnus-summary-move-menu)
- (easy-menu-add gnus-summary-article-menu)
- (easy-menu-add gnus-summary-thread-menu)
- (easy-menu-add gnus-summary-misc-menu)
- (easy-menu-add gnus-summary-post-menu)
- (easy-menu-add gnus-summary-kill-menu)
- (gnus-install-mouse-tracker))
- gnus-summary-mode-hook))
- (setq gnus-article-mode-hook
- (cons
- (lambda ()
- (easy-menu-add gnus-article-article-menu)
- (easy-menu-add gnus-article-treatment-menu))
- gnus-article-mode-hook)))
-
- (defun gnus-install-mouse-tracker ()
- (require 'mode-motion)
- (setq mode-motion-hook 'mode-motion-highlight-line)))
-
- ((and (not (string-match "28.9" emacs-version))
- (not (string-match "29" emacs-version)))
- (setq gnus-hidden-properties '(invisible t))
- (or (fboundp 'buffer-substring-no-properties)
- (defun buffer-substring-no-properties (beg end)
- (format "%s" (buffer-substring beg end)))))
-
+ (gnus-xmas-define))
+
+ ((or (not (boundp 'emacs-minor-version))
+ (and (< emacs-major-version 20)
+ (< emacs-minor-version 30)))
+ ;; Remove the `intangible' prop.
+ (let ((props (and (boundp 'gnus-hidden-properties)
+ gnus-hidden-properties)))
+ (while (and props (not (eq (car (cdr props)) 'intangible)))
+ (setq props (cdr props)))
+ (when props
+ (setcdr props (cdr (cdr (cdr props))))))
+ (unless (fboundp 'buffer-substring-no-properties)
+ (defun buffer-substring-no-properties (beg end)
+ (format "%s" (buffer-substring beg end)))))
+
((boundp 'MULE)
- (provide 'gnusutil))
-
- ))
+ (provide 'gnusutil))))
(eval-and-compile
(cond
(let ((funcs '(mouse-set-point set-face-foreground
set-face-background x-popup-menu)))
(while funcs
- (or (fboundp (car funcs))
- (fset (car funcs) 'gnus-dummy-func))
+ (unless (fboundp (car funcs))
+ (fset (car funcs) 'gnus-dummy-func))
(setq funcs (cdr funcs))))))
- (or (fboundp 'file-regular-p)
- (defun file-regular-p (file)
- (and (not (file-directory-p file))
- (not (file-symlink-p file))
- (file-exists-p file))))
- (or (fboundp 'face-list)
- (defun face-list (&rest args)))
- )
+ (unless (fboundp 'file-regular-p)
+ (defun file-regular-p (file)
+ (and (not (file-directory-p file))
+ (not (file-symlink-p file))
+ (file-exists-p file))))
+ (unless (fboundp 'face-list)
+ (defun face-list (&rest args))))
+
+(eval-and-compile
+ (let ((case-fold-search t))
+ (cond
+ ((string-match "windows-nt\\|os/2\\|emx" (format "%s" system-type))
+ (setq nnheader-file-name-translation-alist
+ (append nnheader-file-name-translation-alist
+ '((?: . ?_)
+ (?+ . ?-))))))))
+
+(defvar gnus-tmp-unread)
+(defvar gnus-tmp-replied)
+(defvar gnus-tmp-score-char)
+(defvar gnus-tmp-indentation)
+(defvar gnus-tmp-opening-bracket)
+(defvar gnus-tmp-lines)
+(defvar gnus-tmp-name)
+(defvar gnus-tmp-closing-bracket)
+(defvar gnus-tmp-subject-or-nil)
(defun gnus-ems-redefine ()
- (cond
+ (cond
((string-match "XEmacs\\|Lucid" emacs-version)
- ;; XEmacs definitions.
- (fset 'gnus-set-mouse-face (lambda (string) string))
-
- (defun gnus-summary-make-display-table ()
- ;; We start from the standard display table, if any.
- (let* ((table (window-display-table)))
- (and (not table)
- (setq table (make-vector 261 ())))
- ;; Nix out all the control chars...
- (let ((i 32))
- (while (>= (setq i (1- i)) 0)
- (aset table i [??])))
- ;; ... but not newline, of course.
- (aset table ?\n nil)
- ;; We nix out any glyphs over 126 that are not set already.
- (let ((i 256))
- (while (>= (setq i (1- i)) 127)
- (or (aref table i)
- (aset table i [??]))))
- (set-window-display-table (get-buffer-window (current-buffer)) table)))
-
- (defun gnus-highlight-selected-summary ()
- ;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
- ;; Highlight selected article in summary buffer
- (if gnus-summary-selected-face
- (save-excursion
- (let* ((beg (progn (beginning-of-line) (point)))
- (end (progn (end-of-line) (point)))
- (to (max 1 (1- (or (previous-single-property-change
- end 'mouse-face nil beg) end))))
- (from (1+ (or (next-single-property-change
- beg 'mouse-face nil end) beg))))
- (if (< to beg)
- (progn
- (setq from beg)
- (setq to end)))
- (if gnus-newsgroup-selected-overlay
- (delete-extent gnus-newsgroup-selected-overlay))
- (setq gnus-newsgroup-selected-overlay
- (make-extent from to))
- (set-extent-face gnus-newsgroup-selected-overlay
- gnus-summary-selected-face)))))
-
- )
- ((boundp 'MULE)
- ;; Mule definitions
- (defun top-short-string (str width)
- "Return a substring of STRING, starting at top and its length is
-equal or smaller than WIDTH. This function doesn't split in the middle
-of multi-octet character. [tl-str]"
- (substring str 0
- (let ((i 0) (w 0) chr (len (length str)))
- (catch 'label
- (while (< i len)
- (setq chr (elt str i))
- (setq w (+ w (char-width chr)))
- (if (> w width)
- (throw 'label i))
- (setq i (+ i (char-bytes chr)))
- )
- i))
- ))
-
- (defun gnus-format-max-width (form length)
- (let* ((val (eval form))
- (valstr (if (numberp val) (int-to-string val) val)))
- (if (> (length valstr) length)
- (top-short-string valstr length)
- valstr)))
-
- (defun gnus-summary-make-display-table ())
- )
- ))
+ (gnus-xmas-redefine))
+
+ ((featurep 'mule)
+ ;; Mule and new Emacs definitions
+
+ ;; [Note] Now there are three kinds of mule implementations,
+ ;; original MULE, XEmacs/mule and beta version of Emacs including
+ ;; some mule features. Unfortunately these API are different. In
+ ;; particular, Emacs (including original MULE) and XEmacs are
+ ;; quite different.
+ ;; Predicates to check are following:
+ ;; (boundp 'MULE) is t only if MULE (original; anything older than
+ ;; Mule 2.3) is running.
+ ;; (featurep 'mule) is t when every mule variants are running.
+
+ ;; These implementations may be able to share between original
+ ;; MULE and beta version of new Emacs. In addition, it is able to
+ ;; detect XEmacs/mule by (featurep 'mule) and to check variable
+ ;; `emacs-version'. In this case, implementation for XEmacs/mule
+ ;; may be able to share between XEmacs and XEmacs/mule.
+
+ (defalias 'gnus-truncate-string 'truncate-string)
+
+ (defvar gnus-summary-display-table nil
+ "Display table used in summary mode buffers.")
+ (fset 'gnus-cite-add-face 'gnus-mule-cite-add-face)
+ (fset 'gnus-max-width-function 'gnus-mule-max-width-function)
+ (fset 'gnus-summary-set-display-table 'ignore)
+ (fset 'gnus-encode-coding-string 'encode-coding-string)
+ (fset 'gnus-decode-coding-string 'decode-coding-string)
+
+ (when (boundp 'gnus-check-before-posting)
+ (setq gnus-check-before-posting
+ (delq 'long-lines
+ (delq 'control-chars gnus-check-before-posting))))
+
+ (defun gnus-summary-line-format-spec ()
+ (insert gnus-tmp-unread gnus-tmp-replied
+ gnus-tmp-score-char gnus-tmp-indentation)
+ (put-text-property
+ (point)
+ (progn
+ (insert
+ gnus-tmp-opening-bracket
+ (format "%4d: %-20s"
+ gnus-tmp-lines
+ (if (> (length gnus-tmp-name) 20)
+ (truncate-string gnus-tmp-name 20)
+ gnus-tmp-name))
+ gnus-tmp-closing-bracket)
+ (point))
+ gnus-mouse-face-prop gnus-mouse-face)
+ (insert " " gnus-tmp-subject-or-nil "\n"))
+ )))
+
+(defun gnus-region-active-p ()
+ "Say whether the region is active."
+ (and (boundp 'transient-mark-mode)
+ transient-mark-mode
+ (boundp 'mark-active)
+ mark-active))
+
+(defun gnus-add-minor-mode (mode name map)
+ (if (fboundp 'add-minor-mode)
+ (add-minor-mode mode name map)
+ (unless (assq mode minor-mode-alist)
+ (push `(,mode ,name) minor-mode-alist))
+ (unless (assq mode minor-mode-map-alist)
+ (push (cons mode map)
+ minor-mode-map-alist))))
+
+(defun gnus-x-splash ()
+ "Show a splash screen using a pixmap in the current buffer."
+ (let ((dir (nnheader-find-etc-directory "gnus"))
+ pixmap file height beg i)
+ (save-excursion
+ (switch-to-buffer (get-buffer-create gnus-group-buffer))
+ (let ((buffer-read-only nil))
+ (erase-buffer)
+ (when (and dir
+ (file-exists-p (setq file (concat dir "x-splash"))))
+ (nnheader-temp-write nil
+ (insert-file-contents file)
+ (goto-char (point-min))
+ (ignore-errors
+ (setq pixmap (read (current-buffer))))))
+ (when pixmap
+ (erase-buffer)
+ (unless (facep 'gnus-splash)
+ (make-face 'gnus-splash))
+ (setq height (/ (car pixmap) (frame-char-height))
+ width (/ (cadr pixmap) (frame-char-width)))
+ (set-face-foreground 'gnus-splash "ForestGreen")
+ (set-face-stipple 'gnus-splash pixmap)
+ (insert-char ?\n (* (/ (window-height) 2 height) height))
+ (setq i height)
+ (while (> i 0)
+ (insert-char ? (* (+ (/ (window-width) 2 width) 1) width))
+ (setq beg (point))
+ (insert-char ? width)
+ (set-text-properties beg (point) '(face gnus-splash))
+ (insert "\n")
+ (decf i))
+ (goto-char (point-min))
+ (sit-for 0))))))
(provide 'gnus-ems)
;; Local Variables:
-;; byte-compile-warnings: nil
+;; byte-compile-warnings: '(redefine callargs)
;; End:
;;; gnus-ems.el ends here
projects / gnus / blobdiff