;;; gnus-html.el --- Render HTML in a buffer.
-;; Copyright (C) 2010, 2011 Free Software Foundation, Inc.
+;; Copyright (C) 2010-2016 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: html, web
(require 'url-cache)
(require 'xml)
(require 'browse-url)
+(require 'mm-util)
(eval-and-compile (unless (featurep 'xemacs) (require 'help-fns)))
(defcustom gnus-html-image-cache-ttl (days-to-time 7)
"Time used to determine if we should use images from the cache."
:version "24.1"
:group 'gnus-art
- :type 'integer)
+ ;; FIXME hardly the friendliest type. The allowed value is actually
+ ;; any time value, but we are assuming no-one cares about USEC and
+ ;; PSEC here. It would be better to eg make it a number of minutes.
+ :type '(list integer integer))
(defcustom gnus-html-image-automatic-caching t
"Whether automatically cache retrieve images."
(charset (mail-content-type-get (mm-handle-type handle)
'charset)))
(when (and charset
- (setq charset (mm-charset-to-coding-system charset))
+ (setq charset (mm-charset-to-coding-system
+ charset nil t))
(not (eq charset 'ascii)))
(insert (prog1
(mm-decode-coding-string (buffer-string) charset)
(defun gnus-html-wash-images ()
"Run through current buffer and replace img tags by images."
- (let (tag parameters string start end images url alt-text
- inhibit-images blocked-images)
+ (let (parameters start end url alt-text inhibit-images blocked-images)
(if (buffer-live-p gnus-summary-buffer)
(with-current-buffer gnus-summary-buffer
(setq inhibit-images gnus-inhibit-images
(mm-with-part handle (buffer-string))
nil t))))
(if image
- (progn
- (gnus-put-image
- (gnus-rescale-image
- image (gnus-html-maximum-image-size))
- (gnus-string-or (prog1
- (buffer-substring start end)
- (delete-region start end))
- "*")
- 'cid)
- (gnus-add-image 'cid image))
+ (gnus-add-image
+ 'cid
+ (gnus-put-image
+ (gnus-rescale-image
+ image (gnus-html-maximum-image-size))
+ (gnus-string-or (prog1
+ (buffer-substring start end)
+ (delete-region start end))
+ "*")
+ 'cid))
(widget-convert-button
'link start end
:action 'gnus-html-insert-image
(gnus-html-put-image (gnus-html-get-image-data url) url alt-text))))
(defun gnus-html-wash-tags ()
- (let (tag parameters string start end images url)
+ (let (tag parameters start end url)
(gnus-html-pre-wash)
(gnus-html-wash-images)
(gnus-article-add-button start end
'browse-url (mm-url-decode-entities-string url)
url)
- (let ((overlay (gnus-make-overlay start end)))
- (gnus-overlay-put overlay 'evaporate t)
- (gnus-overlay-put overlay 'gnus-button-url url)
+ (let ((overlay (make-overlay start end)))
+ (overlay-put overlay 'evaporate t)
+ (overlay-put overlay 'gnus-button-url url)
(gnus-put-text-property start end 'gnus-string url)
(when gnus-article-mouse-face
- (gnus-overlay-put overlay 'mouse-face gnus-article-mouse-face)))))
+ (overlay-put overlay 'mouse-face gnus-article-mouse-face)))))
;; The upper-case IMG_ALT is apparently just an artifact that
;; should be deleted.
((equal tag "IMG_ALT")
;; w3m does not normalize the case
((or (equal tag "b")
(equal tag "B"))
- (gnus-overlay-put (gnus-make-overlay start end) 'face 'gnus-emphasis-bold))
+ (overlay-put (make-overlay start end) 'face 'gnus-emphasis-bold))
((or (equal tag "u")
(equal tag "U"))
- (gnus-overlay-put (gnus-make-overlay start end) 'face 'gnus-emphasis-underline))
+ (overlay-put (make-overlay start end) 'face 'gnus-emphasis-underline))
((or (equal tag "i")
(equal tag "I"))
- (gnus-overlay-put (gnus-make-overlay start end) 'face 'gnus-emphasis-italic))
+ (overlay-put (make-overlay start end) 'face 'gnus-emphasis-italic))
((or (equal tag "s")
(equal tag "S"))
- (gnus-overlay-put (gnus-make-overlay start end) 'face 'gnus-emphasis-strikethru))
+ (overlay-put (make-overlay start end) 'face 'gnus-emphasis-strikethru))
((or (equal tag "ins")
(equal tag "INS"))
- (gnus-overlay-put (gnus-make-overlay start end) 'face 'gnus-emphasis-underline))
+ (overlay-put (make-overlay start end) 'face 'gnus-emphasis-underline))
;; Handle different UL types
((equal tag "_SYMBOL")
(when (string-match "TYPE=\\(.+\\)" parameters)
"Retrieve IMAGE, and place it into BUFFER on arrival."
(gnus-message 8 "gnus-html-schedule-image-fetching: buffer %s, image %s"
buffer image)
- (let ((args (list (car image)
- 'gnus-html-image-fetched
- (list buffer image))))
- (when (> (length (if (featurep 'xemacs)
- (cdr (split-string (function-arglist 'url-retrieve)))
- (help-function-arglist 'url-retrieve)))
- 4)
- (setq args (nconc args (list t))))
+ (if (fboundp 'url-queue-retrieve)
+ (url-queue-retrieve (car image)
+ 'gnus-html-image-fetched
+ (list buffer image) t t)
(ignore-errors
- (push (apply #'url-retrieve args) gnus-buffers))))
+ (url-retrieve (car image)
+ 'gnus-html-image-fetched
+ (list buffer image)))))
(defun gnus-html-image-fetched (status buffer image)
"Callback function called when image has been fetched."
(unless (plist-get status :error)
- (when gnus-html-image-automatic-caching
- (url-store-in-cache (current-buffer)))
(when (and (or (search-forward "\n\n" nil t)
(search-forward "\r\n\r\n" nil t))
- (buffer-live-p buffer))
- (let ((data (buffer-substring (point) (point-max))))
- (with-current-buffer buffer
- (let ((inhibit-read-only t))
- (gnus-html-put-image data (car image) (cadr image)))))))
+ (not (eobp)))
+ (when gnus-html-image-automatic-caching
+ (url-store-in-cache (current-buffer)))
+ (when (buffer-live-p buffer)
+ (let ((data (buffer-substring (point) (point-max))))
+ (with-current-buffer buffer
+ (let ((inhibit-read-only t))
+ (gnus-html-put-image data (car image) (cadr image))))))))
(kill-buffer (current-buffer)))
(defun gnus-html-get-image-data (url)
(truncate (* gnus-max-image-proportion
(- (nth 3 edges) (nth 1 edges)))))))
+;; Behind display-graphic-p test.
+(declare-function image-size "image.c" (spec &optional pixels frame))
+
(defun gnus-html-put-image (data url &optional alt-text)
"Put an image with DATA from URL and optional ALT-TEXT."
(when (gnus-graphic-display-p)
(gnus-put-text-property start (point)
'gnus-alt-text alt-text)
(when url
- (gnus-put-text-property start (point)
- 'image-url url))
+ (gnus-add-text-properties
+ start (point)
+ `(image-url
+ ,url
+ image-displayer
+ (lambda (url start end)
+ (gnus-html-display-image url start end
+ ,alt-text)))))
(gnus-add-image 'external image)
t)
;; Bad image, try to show something else
projects / gnus / blobdiff