;;; gnus-ems.el --- functions for making Gnus work under different Emacsen
-;; Copyright (C) 1995,96 Free Software Foundation, Inc.
-;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
+;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+;; 2004, 2005, 2006 Free Software Foundation, Inc.
+
+;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
;; This file is part of GNU Emacs.
;; 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.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;; Code:
-(eval-when-compile (require 'cl))
+(eval-when-compile
+ (require 'cl)
+ (require 'ring))
;;; 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-down-mouse-3 [down-mouse-3])
(defvar gnus-down-mouse-2 [down-mouse-2])
+(defvar gnus-widget-button-keymap nil)
+(defvar gnus-mode-line-modified
+ (if (featurep 'xemacs)
+ '("--**-" . "-----")
+ '("**" "--")))
-(eval-and-compile
+(eval-and-compile
(autoload 'gnus-xmas-define "gnus-xmas")
(autoload 'gnus-xmas-redefine "gnus-xmas")
- (autoload 'appt-select-lowest-window "appt.el"))
+ (autoload 'gnus-get-buffer-create "gnus")
+ (autoload 'nnheader-find-etc-directory "nnheader"))
-(or (fboundp 'mail-file-babyl-p)
- (fset 'mail-file-babyl-p 'rmail-file-p))
+(autoload 'smiley-region "smiley")
-;;; Mule functions.
+(defun gnus-kill-all-overlays ()
+ "Delete all overlays in the current buffer."
+ (let* ((overlayss (overlay-lists))
+ (buffer-read-only nil)
+ (overlays (delq nil (nconc (car overlayss) (cdr overlayss)))))
+ (while overlays
+ (delete-overlay (pop overlays)))))
-(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)))))
+;;; Mule functions.
(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))))
+ `(let* ((val (eval (, el)))
+ (valstr (if (numberp val)
+ (int-to-string val) val)))
+ (if (> (length valstr) ,max-width)
+ (truncate-string-to-width valstr ,max-width)
+ valstr)))
(eval-and-compile
- (if gnus-xemacs
- nil
-
+ (if (featurep 'xemacs)
+ (gnus-xmas-define)
(defvar gnus-mouse-face-prop 'mouse-face
- "Property used for highlighting mouse regions.")
-
- (defvar gnus-article-x-face-command
- "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | xv -quit -"
- "String or function to be executed to display an X-Face header.
-If it is a string, the command will be executed in a sub-shell
-asynchronously. The compressed face will be piped to this command."))
-
- (cond
- ((string-match "XEmacs\\|Lucid" emacs-version)
- (gnus-xmas-define))
-
- ((or (not (boundp 'emacs-minor-version))
- (< 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))))
+ "Property used for highlighting mouse regions.")))
+
+(eval-when-compile
+ (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)
+ (defvar gnus-check-before-posting)
+ (defvar gnus-mouse-face)
+ (defvar gnus-group-buffer))
-(eval-and-compile
+(defun gnus-ems-redefine ()
(cond
- ((not window-system)
- (defun gnus-dummy-func (&rest args))
- (let ((funcs '(mouse-set-point set-face-foreground
- set-face-background x-popup-menu)))
- (while funcs
- (unless (fboundp (car funcs))
- (fset (car funcs) 'gnus-dummy-func))
- (setq funcs (cdr funcs))))))
- (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))))
+ ((featurep 'xemacs)
+ (gnus-xmas-redefine))
-(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)
+ ((featurep 'mule)
+ ;; Mule and new Emacs definitions
-(defun gnus-ems-redefine ()
- (cond
- ((string-match "XEmacs\\|Lucid" emacs-version)
- (gnus-xmas-redefine))
+ ;; [Note] Now there are three kinds of mule implementations,
+ ;; original MULE, XEmacs/mule and Emacs 20+ including
+ ;; MULE features. Unfortunately these APIs are different. In
+ ;; particular, Emacs (including original Mule) and XEmacs are
+ ;; quite different. However, this version of Gnus doesn't support
+ ;; anything other than XEmacs 20+ and Emacs 20.3+.
- ((boundp 'MULE)
- ;; Mule definitions
- (defalias 'gnus-truncate-string 'truncate-string)
+ ;; 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 other mule variants are running.
+
+ ;; It is possible to detect XEmacs/mule by (featurep 'mule) and
+ ;; (featurep 'xemacs). In this case, the implementation for
+ ;; XEmacs/mule may be shareable between XEmacs and XEmacs/mule.
(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)
-
+ (defalias 'gnus-max-width-function 'gnus-mule-max-width-function)
+
(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
+ (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
+ (insert
+ gnus-tmp-opening-bracket
+ (format "%4d: %-20s"
+ gnus-tmp-lines
(if (> (length gnus-tmp-name) 20)
- (truncate-string gnus-tmp-name 20)
+ (truncate-string-to-width 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"))
- )))
-
+ (insert " " gnus-tmp-subject-or-nil "\n")))))
+
+;; Clone of `appt-select-lowest-window' in appt.el.
+(defun gnus-select-lowest-window ()
+"Select the lowest window on the frame."
+ (let ((lowest-window (selected-window))
+ (bottom-edge (nth 3 (window-edges))))
+ (walk-windows (lambda (w)
+ (let ((next-bottom-edge (nth 3 (window-edges w))))
+ (when (< bottom-edge next-bottom-edge)
+ (setq bottom-edge next-bottom-edge
+ lowest-window w)))))
+ (select-window lowest-window)))
+
+(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-mark-active-p ()
+ "Non-nil means the mark and region are currently active in this buffer."
+ mark-active) ; aliased to region-exists-p in XEmacs.
+
+(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 (gnus-get-buffer-create gnus-group-buffer))
+ (let ((buffer-read-only nil)
+ width height)
+ (erase-buffer)
+ (when (and dir
+ (file-exists-p (setq file
+ (expand-file-name "x-splash" dir))))
+ (let ((coding-system-for-read 'raw-text)
+ default-enable-multibyte-characters)
+ (with-temp-buffer
+ (insert-file-contents file)
+ (goto-char (point-min))
+ (ignore-errors
+ (setq pixmap (read (current-buffer)))))))
+ (when pixmap
+ (make-face 'gnus-splash)
+ (setq height (/ (car pixmap) (frame-char-height))
+ width (/ (cadr pixmap) (frame-char-width)))
+ (set-face-foreground 'gnus-splash "Brown")
+ (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) 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))))))
+
+;;; Image functions.
+
+(defun gnus-image-type-available-p (type)
+ (and (fboundp 'image-type-available-p)
+ (image-type-available-p type)))
+
+(defun gnus-create-image (file &optional type data-p &rest props)
+ (let ((face (plist-get props :face)))
+ (when face
+ (setq props (plist-put props :foreground (face-foreground face)))
+ (setq props (plist-put props :background (face-background face))))
+ (apply 'create-image file type data-p props)))
+
+(defun gnus-put-image (glyph &optional string category)
+ (let ((point (point)))
+ (insert-image glyph (or string " "))
+ (put-text-property point (point) 'gnus-image-category category)
+ (unless string
+ (put-text-property (1- (point)) (point)
+ 'gnus-image-text-deletable t))
+ glyph))
+
+(defun gnus-remove-image (image &optional category)
+ "Remove the image matching IMAGE and CATEGORY found first."
+ (let ((start (point-min))
+ val end)
+ (while (and (not end)
+ (or (setq val (get-text-property start 'display))
+ (and (setq start
+ (next-single-property-change start 'display))
+ (setq val (get-text-property start 'display)))))
+ (setq end (or (next-single-property-change start 'display)
+ (point-max)))
+ (if (and (equal val image)
+ (equal (get-text-property start 'gnus-image-category)
+ category))
+ (progn
+ (put-text-property start end 'display nil)
+ (when (get-text-property start 'gnus-image-text-deletable)
+ (delete-region start end)))
+ (unless (= end (point-max))
+ (setq start end
+ end nil))))))
(provide 'gnus-ems)
-;; Local Variables:
-;; byte-compile-warnings: '(redefine callargs)
-;; End:
-
+;;; arch-tag: e7360b45-14b5-4171-aa39-69a44aed3cdb
;;; gnus-ems.el ends here
projects / gnus / blobdiff