X-Git-Url: http://cgit.sxemacs.org/?p=gnus;a=blobdiff_plain;f=lisp%2Fgnus-picon.el;h=62b18b4045385d0070b51c5abe3e0a8917d847ca;hp=a3b541844d3ef62ec97a265d0031c1e333f4a002;hb=94f288135f95ca48fb50f5aa43bc09f9669c5c23;hpb=c1bc689888c18e12898bbc4c15161cf6618b12aa diff --git a/lisp/gnus-picon.el b/lisp/gnus-picon.el index a3b541844..62b18b404 100644 --- a/lisp/gnus-picon.el +++ b/lisp/gnus-picon.el @@ -1,738 +1,318 @@ ;;; gnus-picon.el --- displaying pretty icons in Gnus -;; Copyright (C) 1996,97,98 Free Software Foundation, Inc. -;; Author: Wes Hardaker +;; Copyright (C) 1996-2015 Free Software Foundation, Inc. + +;; Author: Lars Magne Ingebrigtsen ;; Keywords: news xpm annotation glyph faces ;; This file is part of GNU Emacs. -;; GNU Emacs is free software; you can redistribute it and/or modify +;; GNU Emacs is free software: you can redistribute it and/or modify ;; it under the terms of the GNU General Public License as published by -;; the Free Software Foundation; either version 2, or (at your option) -;; any later version. +;; the Free Software Foundation, either version 3 of the License, or +;; (at your option) any later version. ;; GNU Emacs is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of -;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; 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, Inc., 59 Temple Place - Suite 330, -;; Boston, MA 02111-1307, USA. +;; along with GNU Emacs. If not, see . ;;; Commentary: +;; There are three picon types relevant to Gnus: +;; +;; Persons: person@subdomain.dom +;; users/dom/subdomain/person/face.gif +;; usenix/dom/subdomain/person/face.gif +;; misc/MISC/person/face.gif +;; Domains: subdomain.dom +;; domain/dom/subdomain/unknown/face.gif +;; Groups: comp.lang.lisp +;; news/comp/lang/lisp/unknown/face.gif +;; +;; Original implementation by Wes Hardaker . +;; ;;; Code: +(eval-when-compile (require 'cl)) + (require 'gnus) -(require 'xpm) -(require 'annotations) -(require 'custom) (require 'gnus-art) -(require 'gnus-win) ;;; User variables: -(defgroup picons nil - "Show pictures of people, domains, and newsgroups (XEmacs). -For this to work, you must add gnus-group-display-picons to the -gnus-summary-display-hook or to the gnus-article-display-hook -depending on what gnus-picons-display-where is set to. You must -also add gnus-article-display-picons to gnus-article-display-hook." - :group 'gnus-visual) - -(defcustom gnus-picons-display-where 'picons - "Where to display the group and article icons. -Legal values are `article' and `picons'." - :type '(choice symbol string) - :group 'picons) - -(defcustom gnus-picons-has-modeline-p t - "*Whether the picons window should have a modeline. -This is only useful if `gnus-picons-display-where' is `picons'." - :type 'boolean - :group 'picons) - -(defcustom gnus-picons-database "/usr/local/faces" - "*Defines the location of the faces database. -For information on obtaining this database of pretty pictures, please -see http://www.cs.indiana.edu/picons/ftp/index.html" - :type 'directory - :group 'picons) - -(defcustom gnus-picons-news-directories '("news") +(defcustom gnus-picon-news-directories '("news") "*List of directories to search for newsgroups faces." :type '(repeat string) - :group 'picons) -(define-obsolete-variable-alias 'gnus-picons-news-directory - 'gnus-picons-news-directories) + :group 'gnus-picon) -(defcustom gnus-picons-user-directories '("local" "users" "usenix" "misc") +(defcustom gnus-picon-user-directories '("users" "usenix" "local" "misc") "*List of directories to search for user faces." :type '(repeat string) - :group 'picons) + :group 'gnus-picon) -(defcustom gnus-picons-domain-directories '("domains") +(defcustom gnus-picon-domain-directories '("domains") "*List of directories to search for domain faces. Some people may want to add \"unknown\" to this list." :type '(repeat string) - :group 'picons) - -(defcustom gnus-picons-refresh-before-display nil - "*If non-nil, display the article buffer before computing the picons." - :type 'boolean - :group 'picons) - -(defcustom gnus-picons-group-excluded-groups nil - "*If this regexp matches the group name, group picons will be disabled." - :type 'regexp - :group 'picons) - -(defcustom gnus-picons-x-face-file-name - (format "/tmp/picon-xface.%s.xbm" (user-login-name)) - "*The name of the file in which to store the converted X-face header." - :type 'string - :group 'picons) - -(defcustom gnus-picons-convert-x-face (format "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | pbmtoxbm > %s" gnus-picons-x-face-file-name) - "*Command to convert the x-face header into a xbm file." - :type 'string - :group 'picons) - -(defcustom gnus-picons-display-as-address t - "*If t display textual email addresses along with pictures." - :type 'boolean - :group 'picons) - -(defcustom gnus-picons-file-suffixes - (when (featurep 'x) - (let ((types (list "xbm"))) - (when (featurep 'gif) - (push "gif" types)) - (when (featurep 'xpm) - (push "xpm" types)) - types)) + :group 'gnus-picon) + +(defcustom gnus-picon-file-types + (let ((types (list "xbm"))) + (when (gnus-image-type-available-p 'gif) + (push "gif" types)) + (when (gnus-image-type-available-p 'xpm) + (push "xpm" types)) + types) "*List of suffixes on picon file names to try." :type '(repeat string) - :group 'picons) - -(defcustom gnus-picons-display-article-move-p t - "*Whether to move point to first empty line when displaying picons. -This has only an effect if `gnus-picons-display-where' has value `article'." - :type 'boolean - :group 'picons) - -(defcustom gnus-picons-clear-cache-on-shutdown t - "*Whether to clear the picons cache when exiting gnus. -Gnus caches every picons it finds while it is running. This saves -some time in the search process but eats some memory. If this -variable is set to nil, Gnus will never clear the cache itself; you -will have to manually call `gnus-picons-clear-cache' to clear it. -Otherwise the cache will be cleared every time you exit Gnus." + :group 'gnus-picon) + +(defcustom gnus-picon-properties '(:color-symbols (("None" . "white"))) + "List of image properties applied to picons." + :type 'sexp + :version "24.3" + :group 'gnus-picon) + +(defcustom gnus-picon-style 'inline + "How should picons be displayed. +If `inline', the textual representation is replaced. If `right', picons are +added right to the textual representation." + ;; FIXME: `right' needs improvement for XEmacs. + :type '(choice (const inline) + (const right)) + :group 'gnus-picon) + +(defcustom gnus-picon-inhibit-top-level-domains t + "If non-nil, don't piconify top-level domains. +These are often not very interesting." + :version "24.1" :type 'boolean - :group 'picons) - -(defcustom gnus-picons-piconsearch-url nil - "*The url to query for picons. Setting this to nil will disable it. -The only publicly available address currently known is -http://www.cs.indiana.edu:800/piconsearch. If you know of any other, -please tell me so that we can list it." - :type '(choice (const :tag "Disable" :value nil) - (const :tag "www.cs.indiana.edu" - :value "http://www.cs.indiana.edu:800/piconsearch") - (string)) - :group 'picons) - -(defface gnus-picons-xbm-face '((t (:foreground "black" :background "white"))) - "Face to show X face" - :group 'picons) + :group 'gnus-picon) ;;; Internal variables: -(defvar gnus-picons-processes-alist nil - "Picons processes currently running and their environment.") -(defvar gnus-picons-glyph-alist nil - "Picons glyphs cache. +(defvar gnus-picon-glyph-alist nil + "Picon glyphs cache. List of pairs (KEY . GLYPH) where KEY is either a filename or an URL.") -(defvar gnus-picons-url-alist nil - "Picons file names cache. -List of pairs (KEY . NAME) where KEY is (USER HOST DBS) and NAME is an URL.") - -(defvar gnus-picons-jobs-alist nil - "List of jobs that still need be done. -This is a list of (SYM-ANN TAG ARGS...) where SYM-ANN three annotations list, -TAG is one of `picon' or `search' indicating that the job should query a -picon or do a search for picons file names, and ARGS is some additionnal -arguments necessary for the job.") - -(defvar gnus-picons-job-already-running nil - "Lock to ensure only one stream of http requests is running.") +(defvar gnus-picon-cache nil) ;;; Functions: -(defun gnus-picons-remove-all () - "Removes all picons from the Gnus display(s)." - (interactive) - (map-extents (function (lambda (ext unused) (delete-annotation ext) nil)) - nil nil nil nil nil 'gnus-picon) - (setq gnus-picons-jobs-alist '()) - ;; notify running job that it may have been preempted - (if (and (listp gnus-picons-job-already-running) - gnus-picons-job-already-running) - (setq gnus-picons-job-already-running t))) - -(defun gnus-get-buffer-name (variable) - "Returns the buffer name associated with the contents of a variable." - (let ((buf (gnus-get-buffer-create (gnus-window-to-buffer-helper - (cdr - (assq variable gnus-window-to-buffer)))))) - (and buf - (buffer-name buf)))) - -(defun gnus-picons-buffer-name () - (cond ((or (stringp gnus-picons-display-where) - (bufferp gnus-picons-display-where)) - gnus-picons-display-where) - ((eq gnus-picons-display-where 'picons) - (if gnus-single-article-buffer - "*Picons*" - (concat "*Picons " gnus-newsgroup-name "*"))) - (t - (gnus-get-buffer-name gnus-picons-display-where)))) - -(defun gnus-picons-kill-buffer () - (let ((buf (get-buffer (gnus-picons-buffer-name)))) - (if (buffer-live-p buf) - (kill-buffer buf)))) - -(defun gnus-picons-setup-buffer () - (let ((name (gnus-picons-buffer-name))) - (save-excursion - (if (get-buffer name) - (set-buffer name) - (set-buffer (gnus-get-buffer-create name)) - (buffer-disable-undo) - (setq buffer-read-only t) - (add-hook 'gnus-summary-prepare-exit-hook 'gnus-picons-kill-buffer)) - (current-buffer)))) - -(defun gnus-picons-set-buffer () - (set-buffer (gnus-picons-setup-buffer)) - (goto-char (point-min)) - (if (and (eq gnus-picons-display-where 'article) - gnus-picons-display-article-move-p) - (if (search-forward "\n\n" nil t) - (forward-line -1) - (goto-char (point-max))) - (setq buffer-read-only t) - (unless gnus-picons-has-modeline-p - (set-specifier has-modeline-p - (list (list (current-buffer) - (cons nil gnus-picons-has-modeline-p))))))) - -(defun gnus-picons-prepare-for-annotations () - "Prepare picons buffer for putting annotations." - ;; let drawing catch up - (when gnus-picons-refresh-before-display - (sit-for 0)) - (gnus-picons-set-buffer) - (gnus-picons-remove-all)) - -(defun gnus-picons-make-annotation (&rest args) - (let ((annot (apply 'make-annotation args))) - (set-extent-property annot 'gnus-picon t) - (set-extent-property annot 'duplicable t) - annot)) - -(defun gnus-picons-article-display-x-face () - "Display the x-face header bitmap in the 'gnus-picons-display-where buffer." - (let ((gnus-article-x-face-command 'gnus-picons-display-x-face)) - (gnus-article-display-x-face))) - -(defun gnus-picons-x-face-sentinel (process event) - (when (memq process gnus-picons-processes-alist) - (setq gnus-picons-processes-alist - (delq process gnus-picons-processes-alist)) - (gnus-picons-set-buffer) - (gnus-picons-make-annotation (make-glyph gnus-picons-x-face-file-name) - nil 'text) - (when (file-exists-p gnus-picons-x-face-file-name) - (delete-file gnus-picons-x-face-file-name)))) - -(defun gnus-picons-display-x-face (beg end) - "Function to display the x-face header in the picons window. -To use: (setq gnus-article-x-face-command 'gnus-picons-display-x-face)" +(defsubst gnus-picon-split-address (address) + (setq address (split-string address "@")) + (if (stringp (cadr address)) + (cons (car address) (split-string (cadr address) "\\.")) + (if (stringp (car address)) + (split-string (car address) "\\.")))) + +(defun gnus-picon-find-face (address directories &optional exact) + (let* ((address (gnus-picon-split-address address)) + (user (pop address)) + (faddress address) + database directory result instance base) + (catch 'found + (dolist (database gnus-picon-databases) + (dolist (directory directories) + (setq address faddress + base (expand-file-name directory database)) + (while address + (when (setq result (gnus-picon-find-image + (concat base "/" (mapconcat 'downcase + (reverse address) + "/") + "/" (downcase user) "/"))) + (throw 'found result)) + (if exact + (setq address nil) + (pop address))) + ;; Kludge to search MISC as well. But not in "news". + (unless (string= directory "news") + (when (setq result (gnus-picon-find-image + (concat base "/MISC/" user "/"))) + (throw 'found result)))))))) + +(defun gnus-picon-find-image (directory) + (let ((types gnus-picon-file-types) + found type file) + (while (and (not found) + (setq type (pop types))) + (setq found (file-exists-p (setq file (concat directory "face." type))))) + (if found + file + nil))) + +(defun gnus-picon-insert-glyph (glyph category &optional nostring) + "Insert GLYPH into the buffer. +GLYPH can be either a glyph or a string. When NOSTRING, no textual +replacement is added." + ;; Using NOSTRING prevents wrong BBDB entries with `gnus-picon-style' set to + ;; 'right. + (if (stringp glyph) + (insert glyph) + (gnus-add-wash-type category) + (gnus-add-image category (car glyph)) + (gnus-put-image (car glyph) (unless nostring (cdr glyph)) category))) + +(defun gnus-picon-create-glyph (file) + (or (cdr (assoc file gnus-picon-glyph-alist)) + (cdar (push (cons file (apply 'gnus-create-image + file nil nil + gnus-picon-properties)) + gnus-picon-glyph-alist)))) + +;;; Functions that does picon transformations: + +(declare-function image-size "image.c" (spec &optional pixels frame)) + +(defun gnus-picon-transform-address (header category) + (gnus-with-article-headers + (let ((addresses + (mail-header-parse-addresses + ;; mail-header-parse-addresses does not work (reliably) on + ;; decoded headers. + (or + (ignore-errors + (mail-encode-encoded-word-string + (or (mail-fetch-field header) ""))) + (mail-fetch-field header)))) + spec file point cache len) + (dolist (address addresses) + (setq address (car address)) + (when (and (stringp address) + (setq spec (gnus-picon-split-address address))) + (if (setq cache (cdr (assoc address gnus-picon-cache))) + (setq spec cache) + (when (setq file (or (gnus-picon-find-face + address gnus-picon-user-directories) + (gnus-picon-find-face + (concat "unknown@" + (mapconcat + 'identity (cdr spec) ".")) + gnus-picon-user-directories))) + (setcar spec (cons (gnus-picon-create-glyph file) + (car spec)))) + + (dotimes (i (- (length spec) + (if gnus-picon-inhibit-top-level-domains + 2 1))) + (when (setq file (gnus-picon-find-face + (concat "unknown@" + (mapconcat + 'identity (nthcdr (1+ i) spec) ".")) + gnus-picon-domain-directories t)) + (setcar (nthcdr (1+ i) spec) + (cons (gnus-picon-create-glyph file) + (nth (1+ i) spec))))) + (setq spec (nreverse spec)) + (push (cons address spec) gnus-picon-cache)) + + (gnus-article-goto-header header) + (mail-header-narrow-to-field) + (case gnus-picon-style + (right + (when (= (length addresses) 1) + (setq len (apply '+ (mapcar (lambda (x) + (condition-case nil + (car (image-size (car x))) + (error 0))) spec))) + (when (> len 0) + (goto-char (point-at-eol)) + (insert (propertize + " " 'display + (cons 'space + (list :align-to (- (window-width) 1 len)))))) + (goto-char (point-at-eol)) + (setq point (point-at-eol)) + (dolist (image spec) + (unless (stringp image) + (goto-char point) + (gnus-picon-insert-glyph image category 'nostring))))) + (inline + (when (search-forward address nil t) + (delete-region (match-beginning 0) (match-end 0)) + (setq point (point)) + (while spec + (goto-char point) + (if (> (length spec) 2) + (insert ".") + (if (= (length spec) 2) + (insert "@"))) + (gnus-picon-insert-glyph (pop spec) category)))))))))) + +(defun gnus-picon-transform-newsgroups (header) (interactive) - (if (featurep 'xface) - ;; Use builtin support - (save-excursion - ;; Don't remove this binding, it is really needed: when - ;; `gnus-picons-set-buffer' changes buffer (like when it is - ;; set to display picons outside of the article buffer), BEG - ;; and END still refer the buffer current now ! - (let ((buf (current-buffer))) - (gnus-picons-set-buffer) - (gnus-picons-make-annotation - (vector 'xface - :data (concat "X-Face: " (buffer-substring beg end buf))) - nil 'text nil nil nil t))) - ;; convert the x-face header to a .xbm file - (let* ((process-connection-type nil) - (process (start-process-shell-command "gnus-x-face" nil - gnus-picons-convert-x-face))) - (push process gnus-picons-processes-alist) - (process-kill-without-query process) - (set-process-sentinel process 'gnus-picons-x-face-sentinel) - (process-send-region process beg end) - (process-send-eof process)))) - -(defun gnus-article-display-picons () - "Display faces for an author and her domain in gnus-picons-display-where." + (gnus-with-article-headers + (gnus-article-goto-header header) + (mail-header-narrow-to-field) + (let ((groups (message-tokenize-header (mail-fetch-field header))) + spec file point) + (dolist (group groups) + (unless (setq spec (cdr (assoc group gnus-picon-cache))) + (setq spec (nreverse (split-string group "[.]"))) + (dotimes (i (length spec)) + (when (setq file (gnus-picon-find-face + (concat "unknown@" + (mapconcat + 'identity (nthcdr i spec) ".")) + gnus-picon-news-directories t)) + (setcar (nthcdr i spec) + (cons (gnus-picon-create-glyph file) + (nth i spec))))) + (push (cons group spec) gnus-picon-cache)) + (when (search-forward group nil t) + (delete-region (match-beginning 0) (match-end 0)) + (save-restriction + (narrow-to-region (point) (point)) + (while spec + (goto-char (point-min)) + (if (> (length spec) 1) + (insert ".")) + (gnus-picon-insert-glyph (pop spec) 'newsgroups-picon)) + (goto-char (point-max)))))))) + +;;; Commands: + +;; #### NOTE: the test for buffer-read-only is the same as in +;; article-display-[x-]face. See the comment up there. + +;;;###autoload +(defun gnus-treat-from-picon () + "Display picons in the From header. +If picons are already displayed, remove them." (interactive) - (let (from at-idx) - (when (and (featurep 'xpm) - (or (not (fboundp 'device-type)) (equal (device-type) 'x)) - (setq from (mail-fetch-field "from")) - (setq from (downcase (or (cadr (mail-extract-address-components - from)) - ""))) - (or (setq at-idx (string-match "@" from)) - (setq at-idx (length from)))) - (save-excursion - (let ((username (downcase (substring from 0 at-idx))) - (addrs (if (eq at-idx (length from)) - (if gnus-local-domain - (message-tokenize-header gnus-local-domain ".")) - (message-tokenize-header (substring from (1+ at-idx)) - ".")))) - (gnus-picons-prepare-for-annotations) - (gnus-group-display-picons) - (if (null gnus-picons-piconsearch-url) - (progn - (gnus-picons-display-pairs (gnus-picons-lookup-pairs - addrs - gnus-picons-domain-directories) - gnus-picons-display-as-address - "." t) - (if (and gnus-picons-display-as-address addrs) - (gnus-picons-make-annotation - [string :data "@"] nil 'text nil nil nil t)) - (gnus-picons-display-picon-or-name - (gnus-picons-lookup-user username addrs) - username t)) - (push (list 'gnus-article-annotations 'search username addrs - gnus-picons-domain-directories t) - gnus-picons-jobs-alist) - (gnus-picons-next-job))))))) - -(defun gnus-group-display-picons () - "Display icons for the group in the `gnus-picons-display-where' buffer." + (let ((wash-picon-p buffer-read-only)) + (gnus-with-article-buffer + (if (and wash-picon-p (memq 'from-picon gnus-article-wash-types)) + (gnus-delete-images 'from-picon) + (gnus-picon-transform-address "from" 'from-picon))))) + +;;;###autoload +(defun gnus-treat-mail-picon () + "Display picons in the Cc and To headers. +If picons are already displayed, remove them." (interactive) - (when (and (featurep 'xpm) - (or (not (fboundp 'device-type)) (equal (device-type) 'x)) - (or (null gnus-picons-group-excluded-groups) - (not (string-match gnus-picons-group-excluded-groups - gnus-newsgroup-name)))) - (save-excursion - (gnus-picons-prepare-for-annotations) - (if (null gnus-picons-piconsearch-url) - (gnus-picons-display-pairs - (gnus-picons-lookup-pairs - (reverse (message-tokenize-header - (gnus-group-real-name gnus-newsgroup-name) - ".")) - gnus-picons-news-directories) - t ".") - (push (list 'gnus-group-annotations 'search nil - (message-tokenize-header - (gnus-group-real-name gnus-newsgroup-name) ".") - (if (listp gnus-picons-news-directories) - gnus-picons-news-directories - (list gnus-picons-news-directories)) - nil) - gnus-picons-jobs-alist) - (gnus-picons-next-job)) - - (add-hook 'gnus-summary-exit-hook 'gnus-picons-remove-all)))) - -(defun gnus-picons-lookup-internal (addrs dir) - (setq dir (expand-file-name dir gnus-picons-database)) - (gnus-picons-try-face (dolist (part (reverse addrs) dir) - (setq dir (expand-file-name part dir))))) - -(defun gnus-picons-lookup (addrs dirs) - "Lookup the picon for ADDRS in databases DIRS. -Returns the picon filename or NIL if none found." - (let (result) - (while (and dirs (null result)) - (setq result (gnus-picons-lookup-internal addrs (pop dirs)))) - result)) - -(defun gnus-picons-lookup-user-internal (user domains) - (let ((dirs gnus-picons-user-directories) - domains-tmp dir picon) - (while (and dirs (null picon)) - (setq domains-tmp domains - dir (pop dirs)) - (while (and domains-tmp - (null (setq picon (gnus-picons-lookup-internal - (cons user domains-tmp) dir)))) - (pop domains-tmp)) - ;; Also make a try in MISC subdir - (unless picon - (setq picon (gnus-picons-lookup-internal (list user "MISC") dir)))) - picon)) - -(defun gnus-picons-lookup-user (user domains) - "Lookup the picon for USER at DOMAINS. -USER is a string containing a name. -DOMAINS is a list of strings from the fully qualified domain name." - (or (gnus-picons-lookup-user-internal user domains) - (gnus-picons-lookup-user-internal "unknown" domains))) - -(defun gnus-picons-lookup-pairs (domains directories) - "Lookup picons for DOMAINS and all its parents in DIRECTORIES. -Returns a list of PAIRS whose CAR is the picon filename or NIL if -none, and whose CDR is the corresponding element of DOMAINS." - (let (picons) - (setq directories (if (listp directories) - directories - (list directories))) - (while domains - (push (list (gnus-picons-lookup (cons "unknown" domains) directories) - (pop domains)) - picons)) - picons)) - -(defun gnus-picons-display-picon-or-name (picon name &optional right-p) - (cond (picon (gnus-picons-display-glyph picon name right-p)) - (gnus-picons-display-as-address (list (gnus-picons-make-annotation - (vector 'string :data name) - nil 'text - nil nil nil right-p))))) - -(defun gnus-picons-display-pairs (pairs &optional bar-p dot-p right-p) - "Display picons in list PAIRS." - (let ((domain-p (and gnus-picons-display-as-address dot-p)) - pair picons) - (when (and bar-p domain-p right-p) - (setq picons (gnus-picons-display-glyph - (let ((gnus-picons-file-suffixes '("xbm"))) - (gnus-picons-try-face - gnus-xmas-glyph-directory "bar.")) - nil right-p))) - (while (setq pair (pop pairs)) - (setq picons (nconc picons - (gnus-picons-display-picon-or-name - (car pair) (cadr pair) right-p) - (if (and domain-p pairs) - (list (gnus-picons-make-annotation - (vector 'string :data dot-p) - nil 'text nil nil nil right-p)))))) - picons)) - -(defun gnus-picons-try-face (dir &optional filebase) - (let* ((dir (file-name-as-directory dir)) - (filebase (or filebase "face.")) - (key (concat dir filebase)) - (glyph (cdr (assoc key gnus-picons-glyph-alist))) - (suffixes gnus-picons-file-suffixes) - f suf) - (while (setq suf (pop suffixes)) - (when (file-exists-p (setq f (expand-file-name - (concat filebase suf) - dir))) - (setq suffixes nil - glyph (make-glyph f)) - (when (equal suf "xbm") - (set-glyph-face glyph 'gnus-picons-xbm-face)) - (push (cons key glyph) gnus-picons-glyph-alist))) - glyph)) - -(defun gnus-picons-display-glyph (glyph &optional part rightp) - (let ((new (gnus-picons-make-annotation - glyph (point) 'text nil nil nil rightp))) - (when (and part gnus-picons-display-as-address) - (set-annotation-data - new (cons new (make-glyph (vector 'string :data part)))) - (set-annotation-action new 'gnus-picons-action-toggle)) - (nconc - (list new) - (if (and (eq major-mode 'gnus-article-mode) - (not gnus-picons-display-as-address) - (not part)) - (list (gnus-picons-make-annotation [string :data " "] (point) - 'text nil nil nil rightp)))))) - -(defun gnus-picons-action-toggle (data) - "Toggle annotation." - (interactive "e") - (let* ((annot (car data)) - (glyph (annotation-glyph annot))) - (set-annotation-glyph annot (cdr data)) - (set-annotation-data annot (cons annot glyph)))) - -(defun gnus-picons-clear-cache () - "Clear the picons cache." + (let ((wash-picon-p buffer-read-only)) + (gnus-with-article-buffer + (if (and wash-picon-p (memq 'mail-picon gnus-article-wash-types)) + (gnus-delete-images 'mail-picon) + (gnus-picon-transform-address "cc" 'mail-picon) + (gnus-picon-transform-address "to" 'mail-picon))))) + +;;;###autoload +(defun gnus-treat-newsgroups-picon () + "Display picons in the Newsgroups and Followup-To headers. +If picons are already displayed, remove them." (interactive) - (setq gnus-picons-glyph-alist nil - gnus-picons-url-alist nil)) - -(gnus-add-shutdown 'gnus-picons-close 'gnus) - -(defun gnus-picons-close () - "Shut down the picons." - (if gnus-picons-clear-cache-on-shutdown - (gnus-picons-clear-cache))) - -;;; Query a remote DB. This requires some stuff from w3 ! - -(require 'url) -(require 'w3-forms) - -(defun gnus-picons-url-retrieve (url fn arg) - (let ((old-asynch (default-value 'url-be-asynchronous)) - (url-working-buffer (generate-new-buffer " *picons*")) - (url-package-name "Gnus") - (url-package-version gnus-version-number) - url-request-method) - (setq-default url-be-asynchronous t) - (save-excursion - (set-buffer url-working-buffer) - (setq url-be-asynchronous t - url-current-callback-data arg - url-current-callback-func fn) - (url-retrieve url t)) - (setq-default url-be-asynchronous old-asynch))) - -(defun gnus-picons-make-glyph (type) - "Make a TYPE glyph using current buffer as data. Handles xbm nicely." - (cond ((null type) nil) - ((eq type 'xbm) (let ((fname (make-temp-name "/tmp/picon"))) - (write-region (point-min) (point-max) fname - nil 'quiet) - (prog1 (make-glyph (vector 'xbm :file fname)) - (delete-file fname)))) - (t (make-glyph (vector type :data (buffer-string)))))) - -;;; Parsing of piconsearch result page. - -;; Assumes: -;; 1 - each value field has the form: "key = value" -;; 2 - a "

" separates the keywords from the results -;; 3 - every results begins by the path within the database at the beginning -;; of the line in raw text. -;; 3b - and the href following it is the preferred image type. - -;; if 1 or 2 is not met, it will probably cause an error. The other -;; will go undetected - -(defun gnus-picons-parse-value (name) - (goto-char (point-min)) - (re-search-forward (concat "" - (regexp-quote name) - " *= * *\\([^ <][^<]*\\) *")) - (buffer-substring (match-beginning 1) (match-end 1))) - -(defun gnus-picons-parse-filenames () - ;; returns an alist of ((USER ADDRS DB) . URL) - (let* ((case-fold-search t) - (user (gnus-picons-parse-value "user")) - (host (gnus-picons-parse-value "host")) - (dbs (message-tokenize-header (gnus-picons-parse-value "db") " ")) - (start-re - (concat - ;; dbs - "^\\(" (mapconcat 'identity dbs "\\|") "\\)/" - ;; host - "\\(\\(" (replace-in-string host "\\." "/\\|" t) "/\\|MISC/\\)*\\)" - ;; user - "\\(" (regexp-quote user) "\\|unknown\\)/" - "face\\.")) - cur-db cur-host cur-user types res) - ;; now point will be somewhere in the header. Find beginning of - ;; entries - (re-search-forward "

[ \t\n]*") - (while (re-search-forward start-re nil t) - (setq cur-db (buffer-substring (match-beginning 1) (match-end 1)) - cur-host (buffer-substring (match-beginning 2) (match-end 2)) - cur-user (buffer-substring (match-beginning 4) (match-end 4)) - cur-host (nreverse (message-tokenize-header cur-host "/"))) - ;; XXX - KLUDGE: there is a blank picon in news/MISC/unknown - (unless (and (string-equal cur-db "news") - (string-equal cur-user "unknown") - (equal cur-host '("MISC"))) - ;; ok now we have found an entry (USER HOST DB), find the - ;; corresponding picon URL - (save-restriction - ;; restrict region to this entry - (narrow-to-region (point) (search-forward "
")) - (goto-char (point-min)) - (setq types gnus-picons-file-suffixes) - (while (and types - (not (re-search-forward - (concat "