;;; gnus-ems.el --- functions for making Gnus work under different Emacsen
-;; Copyright (C) 1995,96 Free Software Foundation, Inc.
+;; Copyright (C) 1995,96,97,98 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
;; Keywords: news
(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-down-mouse-2 [down-mouse-2])
+(defvar gnus-mode-line-modified
+ (if (or gnus-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-group-remove-excess-properties 'ignore)
-(defalias 'gnus-topic-remove-excess-properties 'ignore)
-(defalias 'gnus-extent-start-open 'ignore)
-(defalias 'gnus-set-text-properties 'set-text-properties)
-(defalias 'gnus-appt-select-lowest-window 'appt-select-lowest-window)
-
-(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))
;;; Mule functions.
-(defun gnus-mule-truncate-string (str width)
- (let ((w (string-width str))
- (col 0) (idx 0) (p-idx 0) chr)
- (if (<= w width)
- str
- (while (< col width)
- (setq chr (aref str idx)
- col (+ col (char-width chr))
- p-idx idx
- idx (+ idx (char-bytes chr))
- ))
- (substring str 0 (if (= col width)
- idx
- p-idx)))))
-
(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)))))
+ (when face
+ (let ((inhibit-point-motion-hooks t)
+ from to)
+ (goto-line number)
+ (unless (eobp) ; Sometimes things become confused (broken).
+ (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)
+ (push (setq overlay (gnus-make-overlay from to))
+ gnus-cite-overlay-list)
+ (gnus-overlay-put (gnus-make-overlay from to) 'face face))))))
(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))
- (gnus-truncate-string valstr (, max-width))
+ (truncate-string valstr (, max-width))
valstr))))
+(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.")
-
- ;; 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")) 3)))
- '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
+ "Property used for highlighting mouse regions."))
+
+ (cond
((string-match "XEmacs\\|Lucid" emacs-version)
(gnus-xmas-define))
((or (not (boundp 'emacs-minor-version))
- (< emacs-minor-version 30))
+ (and (< emacs-major-version 20)
+ (< emacs-minor-version 30)))
;; Remove the `intangible' prop.
- (let ((props (and (boundp 'gnus-hidden-properties)
+ (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)))))
-
+ (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))))
(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" (format "%s" system-type))
+ ((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-subject-or-nil)
(defun gnus-ems-redefine ()
- (cond
+ (cond
((string-match "XEmacs\\|Lucid" emacs-version)
(gnus-xmas-redefine))
- ((boundp 'MULE)
- ;; Mule definitions
- (defalias 'gnus-truncate-string
- (if (fboundp 'truncate-string)
- 'truncate-string 'gnus-mule-truncate-string))
-
- (fset 'gnus-summary-make-display-table (lambda () nil))
+ ((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)
- (if (boundp 'gnus-check-before-posting)
- (setq gnus-check-before-posting
- (delq 'long-lines
- (delq 'control-chars gnus-check-before-posting))))
+ (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)
- (gnus-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 gnus-tmp-name 20)
gnus-tmp-name))
gnus-tmp-closing-bracket)
(point))
(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)
projects / gnus / blobdiff