;;; gnus-ems.el --- functions for making Gnus work under different Emacsen
-;; Copyright (C) 1995,96 Free Software Foundation, Inc.
+;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
+;; Free Software Foundation, Inc.
-;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
+;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
;; This file is part of GNU Emacs.
(eval-when-compile (require 'cl))
+;;; Function aliases later to be redefined for XEmacs usage.
+
(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 (or (featurep 'xemacs)
+ (< emacs-major-version 20))
+ '("--**-" . "-----")
+ '("**" "--")))
-(defalias 'gnus-make-overlay 'make-overlay)
-(defalias 'gnus-overlay-put 'overlay-put)
-(defalias 'gnus-move-overlay 'move-overlay)
-(defalias 'gnus-overlay-end 'overlay-end)
-(defalias 'gnus-extent-detached-p 'ignore)
-(defalias 'gnus-extent-start-open 'ignore)
-(defalias 'gnus-set-text-properties 'set-text-properties)
-(defalias 'gnus-group-remove-excess-properties 'ignore)
-(defalias 'gnus-topic-remove-excess-properties 'ignore)
-(defalias 'gnus-appt-select-lowest-window 'appt-select-lowest-window)
-(defalias 'gnus-mail-strip-quoted-names 'mail-strip-quoted-names)
-(defalias 'gnus-make-local-hook 'make-local-hook)
-(defalias 'gnus-add-hook 'add-hook)
-(defalias 'gnus-character-to-event 'identity)
-(defalias 'gnus-add-text-properties 'add-text-properties)
-(defalias 'gnus-put-text-property 'put-text-property)
-(defalias 'gnus-mode-line-buffer-identification 'identity)
-
-
-(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 'appt-select-lowest-window "appt"))
-(or (fboundp 'mail-file-babyl-p)
- (fset 'mail-file-babyl-p 'rmail-file-p))
+(if (featurep 'xemacs)
+ (autoload 'gnus-smiley-display "smiley")
+ (autoload 'gnus-smiley-display "smiley-ems") ; override XEmacs version
+)
-;;; 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.
- (if 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))
- (if (< 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 (string-match "XEmacs\\|Lucid" emacs-version)
- ()
-
+ (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.")
-
- ;; Added by Per Abrahamsen <amanda@iesd.auc.dk>.
- (defvar gnus-display-type
- (condition-case nil
- (let ((display-resource (x-get-resource ".displayType" "DisplayType")))
- (cond (display-resource (intern (downcase display-resource)))
- ((x-display-color-p) 'color)
- ((x-display-grayscale-p) 'grayscale)
- (t 'mono)))
- (error 'mono))
- "A symbol indicating the display Emacs is running under.
-The symbol should be one of `color', `grayscale' or `mono'. If Emacs
-guesses this display attribute wrongly, either set this variable in
-your `~/.emacs' or set the resource `Emacs.displayType' in your
-`~/.Xdefaults'. See also `gnus-background-mode'.
-
-This is a meta-variable that will affect what default values other
-variables get. You would normally not change this variable, but
-pounce directly on the real variables themselves.")
-
- (defvar gnus-background-mode
- (condition-case nil
- (let ((bg-resource (x-get-resource ".backgroundMode"
- "BackgroundMode"))
- (params (frame-parameters)))
- (cond (bg-resource (intern (downcase bg-resource)))
- ((and (cdr (assq 'background-color params))
- (< (apply '+ (x-color-values
- (cdr (assq 'background-color params))))
- (* (apply '+ (x-color-values "white")) .6)))
- 'dark)
- (t 'light)))
- (error 'light))
- "A symbol indicating the Emacs background brightness.
-The symbol should be one of `light' or `dark'.
-If Emacs guesses this frame attribute wrongly, either set this variable in
-your `~/.emacs' or set the resource `Emacs.backgroundMode' in your
-`~/.Xdefaults'.
-See also `gnus-display-type'.
-
-This is a meta-variable that will affect what default values other
-variables get. You would normally not change this variable, but
-pounce directly on the real variables themselves."))
-
- (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)))
- (and props (setcdr props (cdr (cdr (cdr props))))))
- (or (fboundp 'buffer-substring-no-properties)
- (defun buffer-substring-no-properties (beg end)
- (format "%s" (buffer-substring beg end)))))
-
- ((boundp 'MULE)
- (provide 'gnusutil))))
-
-(eval-and-compile
- (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
- (or (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))))
+ "Property used for highlighting mouse regions.")))
(eval-and-compile
(let ((case-fold-search t))
(cond
- ((string-match "windows-nt\\|os/2\\|emx" (format "%s" system-type))
+ ((string-match "windows-nt\\|os/2\\|emx\\|cygwin32"
+ (symbol-name system-type))
(setq nnheader-file-name-translation-alist
(append nnheader-file-name-translation-alist
- '((?: . ?_)
- (?+ . ?-))))))))
+ (mapcar (lambda (c) (cons c ?_))
+ '(?: ?* ?\" ?< ?> ??))
+ '((?+ . ?-))))))))
(defvar gnus-tmp-unread)
(defvar gnus-tmp-replied)
(defvar gnus-tmp-subject-or-nil)
(defun gnus-ems-redefine ()
- (cond
- ((string-match "XEmacs\\|Lucid" emacs-version)
+ (cond
+ ((featurep 'xemacs)
(gnus-xmas-redefine))
- ((boundp 'MULE)
- ;; Mule definitions
- (defalias 'gnus-truncate-string 'truncate-string)
+ ((featurep 'mule)
+ ;; Mule and new Emacs definitions
+
+ ;; [Note] Now there are three kinds of mule implementations,
+ ;; original MULE, XEmacs/mule and Emacs 20+ including
+ ;; MULE features. Unfortunately these API are different. In
+ ;; particular, Emacs (including original MULE) and XEmacs are
+ ;; quite different. Howvere, this version of Gnus doesn't support
+ ;; anything other than XEmacs 20+ and Emacs 20.3+.
+
+ ;; 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.
- (fset 'gnus-summary-make-display-table (lambda () nil))
- (fset 'gnus-cite-add-face 'gnus-mule-cite-add-face)
- (fset 'gnus-max-width-function 'gnus-mule-max-width-function)
-
- (if (boundp 'gnus-check-before-posting)
- (setq gnus-check-before-posting
- (delq 'long-lines
- (delq 'control-chars gnus-check-before-posting))))
+ ;; It is possible to detect XEmacs/mule by (featurep 'mule) and
+ ;; checking `emacs-version'. 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.")
+ (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
- (if (> (length gnus-tmp-name) 20)
- (truncate-string gnus-tmp-name 20)
+ (insert
+ gnus-tmp-opening-bracket
+ (format "%4d: %-20s"
+ gnus-tmp-lines
+ (if (> (length 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")))))
+
+(defun gnus-region-active-p ()
+ "Say whether the region is active."
+ (and (boundp 'transient-mark-mode)
+ transient-mark-mode
+ (boundp 'mark-active)
+ mark-active))
+
+(if (fboundp 'add-minor-mode)
+ (defalias 'gnus-add-minor-mode 'add-minor-mode)
+ (defun gnus-add-minor-mode (mode name map &rest rest)
+ (set (make-local-variable mode) t)
+ (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 (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))))
+ (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))))))
+
+(defvar gnus-article-xface-ring-internal nil
+ "Cache for face data.")
+
+;; Worth customizing?
+(defvar gnus-article-xface-ring-size 6
+ "Length of the ring used for `gnus-article-xface-ring-internal'.")
+
+(defvar gnus-article-compface-xbm
+ (eq 0 (string-match "#define" (shell-command-to-string "uncompface -X")))
+ "Non-nil means the compface program supports the -X option.
+That produces XBM output.")
+
+(defun gnus-article-display-xface (beg end)
+ "Display an XFace header from between BEG and END in the current article.
+Requires support for images in your Emacs and the external programs
+`uncompface', and `icontopbm'. On a GNU/Linux system these
+might be in packages with names like `compface' or `faces-xface' and
+`netpbm' or `libgr-progs', for instance. See also
+`gnus-article-compface-xbm'.
+
+This function is for Emacs 21+. See `gnus-xmas-article-display-xface'
+for XEmacs."
+ ;; It might be worth converting uncompface's output in Lisp.
+
+ (when (if (fboundp 'display-graphic-p)
+ (display-graphic-p))
+ (unless gnus-article-xface-ring-internal ; Only load ring when needed.
+ (setq gnus-article-xface-ring-internal
+ (make-ring gnus-article-xface-ring-size)))
+ (save-excursion
+ (let* ((cur (current-buffer))
+ (data (buffer-substring beg end))
+ (image (cdr-safe (assoc data (ring-elements
+ gnus-article-xface-ring-internal))))
+ default-enable-multibyte-characters)
+ (unless image
+ (with-temp-buffer
+ (insert data)
+ (and (eq 0 (apply #'call-process-region (point-min) (point-max)
+ "uncompface"
+ 'delete '(t nil) nil
+ (if gnus-article-compface-xbm
+ '("-X"))))
+ (if gnus-article-compface-xbm
+ t
+ (goto-char (point-min))
+ (progn (insert "/* Width=48, Height=48 */\n") t)
+ (eq 0 (call-process-region (point-min) (point-max)
+ "icontopbm"
+ 'delete '(t nil))))
+ ;; Miles Bader says that faces don't look right as
+ ;; light on dark.
+ (if (eq 'dark (cdr-safe (assq 'background-mode
+ (frame-parameters))))
+ (setq image (create-image (buffer-string)
+ (if gnus-article-compface-xbm
+ 'xbm
+ 'pbm)
+ t
+ :ascent 'center
+ :foreground "black"
+ :background "white"))
+ (setq image (create-image (buffer-string)
+ (if gnus-article-compface-xbm
+ 'xbm
+ 'pbm)
+ t
+ :ascent 'center)))))
+ (ring-insert gnus-article-xface-ring-internal (cons data image)))
+ (when image
+ (goto-char (point-min))
+ (re-search-forward "^From:" nil 'move)
+ (insert-image image))))))
(provide 'gnus-ems)
projects / gnus / blobdiff