X-Git-Url: https://cgit.sxemacs.org/?a=blobdiff_plain;f=lisp%2Fgnus-ems.el;h=6fd34cfb5b2222d43a6e850ec166f28db7fef230;hb=eec20aecfb21c26e60d9a7f23267d15c1b40d7a1;hp=7d404e7c3a289c0568b80547798ed1974cfae4f5;hpb=b4ec1f93a70a66339d88c2a0f06e13e725b6216e;p=gnus

diff --git a/lisp/gnus-ems.el b/lisp/gnus-ems.el
index 7d404e7c3..6fd34cfb5 100644
--- a/lisp/gnus-ems.el
+++ b/lisp/gnus-ems.el
@@ -1,7 +1,8 @@
 ;;; 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, 2001, 2002, 2003
+;;        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.
@@ -25,206 +26,200 @@
 
 ;;; Code:
 
-(eval-when-compile (require 'cl))
+(eval-when-compile
+  (require 'cl)
+  (require 'ring))
+
+;;; 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 (featurep 'xemacs)
+      '("--**-" . "-----")
+    '("**" "--")))
 
-(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-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-character-to-event 'identity)
-(defalias 'gnus-add-text-properties 'add-text-properties)
-
-(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"))
-
-(or (fboundp 'mail-file-babyl-p)
-    (fset 'mail-file-babyl-p 'rmail-file-p))
+  (autoload 'appt-select-lowest-window "appt")
+  (autoload 'gnus-get-buffer-create "gnus")
+  (autoload 'nnheader-find-etc-directory "nnheader"))
+
+(autoload 'smiley-region "smiley")
+;; Fixme: shouldn't require message
+(autoload 'message-text-with-property "message")
+
+(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)))))
 
 ;;; 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.
-  (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)))))
-
 (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.")
-
-    ;; 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 
-   ((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))))
+      "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
-	(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))))
+   ((featurep 'xemacs)
+    (gnus-xmas-redefine))
 
-(eval-and-compile
-  (let ((case-fold-search t))
-    (cond
-     ((string-match "windows-nt\\|os/2" (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+.
+
+    ;; 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.
 
-   ((boundp 'MULE)
-    ;; Mule definitions
-    (defalias 'gnus-truncate-string 'truncate-string)
+    ;; 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.
 
-    (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))))
+    (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))
+
+(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)
+  (dolist (position (message-text-with-property 'display))
+    (when (and (equal (get-text-property position 'display) image)
+	       (equal (get-text-property position 'gnus-image-category)
+		      category))
+      (put-text-property position (1+ position) 'display nil)
+      (when (get-text-property position 'gnus-image-text-deletable)
+	(delete-region position (1+ position))))))
 
 (provide 'gnus-ems)
 
-;; Local Variables:
-;; byte-compile-warnings: '(redefine callargs)
-;; End:
-
 ;;; gnus-ems.el ends here