;;; shr.el --- Simple HTML Renderer
-;; Copyright (C) 2010, 2011 Free Software Foundation, Inc.
+;; Copyright (C) 2010-2011 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: html
:group 'shr
:type 'regexp)
-(defcustom shr-table-horizontal-line ?-
+(defcustom shr-table-horizontal-line ?\s
"Character used to draw horizontal table lines."
:group 'shr
:type 'character)
-(defcustom shr-table-vertical-line ?|
+(defcustom shr-table-vertical-line ?\s
"Character used to draw vertical table lines."
:group 'shr
:type 'character)
-(defcustom shr-table-corner ?+
+(defcustom shr-table-corner ?\s
"Character used to draw table corners."
:group 'shr
:type 'character)
(const :tag "Use the width of the window" nil))
:group 'shr)
-(defface shr-tag-h1 '((t (:bold t :height 2.2)))
- "Face used for H1 tags."
- :group 'shr)
-
-(defface shr-tag-h2 '((t (:bold t :height 2.0)))
- "Face used for H2 tags."
- :group 'shr)
-
-(defface shr-tag-h3 '((t (:bold t :height 1.8)))
- "Face used for H3 tags."
- :group 'shr)
+(defvar shr-content-function nil
+ "If bound, this should be a function that will return the content.
+This is used for cid: URLs, and the function is called with the
+cid: URL as the argument.")
-(defface shr-tag-h4 '((t (:bold t :height 1.6)))
- "Face used for H4 tags."
- :group 'shr)
+(defvar shr-put-image-function 'shr-put-image
+ "Function called to put image and alt string.")
-(defface shr-tag-h5 '((t (:bold t :height 1.4)))
- "Face used for H5 tags."
+(defface shr-strike-through '((t (:strike-through t)))
+ "Font for <s> elements."
:group 'shr)
-(defface shr-tag-h6 '((t (:bold t :height 1.2)))
- "Face used for H6 tags."
+(defface shr-link
+ '((t (:inherit link)))
+ "Font for link elements."
:group 'shr)
-(defvar shr-content-function nil
- "If bound, this should be a function that will return the content.
-This is used for cid: URLs, and the function is called with the
-cid: URL as the argument.")
-
;;; Internal variables.
(defvar shr-folding-mode nil)
(defvar shr-kinsoku-shorten nil)
(defvar shr-table-depth 0)
(defvar shr-stylesheet nil)
+(defvar shr-base nil)
+(defvar shr-ignore-cache nil)
(defvar shr-map
(let ((map (make-sparse-keymap)))
;; Public functions and commands.
+(defun shr-visit-file (file)
+ (interactive "fHTML file name: ")
+ (pop-to-buffer "*html*")
+ (erase-buffer)
+ (shr-insert-document
+ (with-temp-buffer
+ (insert-file-contents file)
+ (libxml-parse-html-region (point-min) (point-max)))))
+
;;;###autoload
(defun shr-insert-document (dom)
(setq shr-content-cache nil)
(let ((shr-state nil)
(shr-start nil)
+ (shr-base nil)
(shr-width (or shr-width (window-width))))
(shr-descend (shr-transform-dom dom))))
(message "No image under point")
(message "%s" text))))
-(defun shr-browse-image ()
- "Browse the image under point."
- (interactive)
+(defun shr-browse-image (&optional copy-url)
+ "Browse the image under point.
+If COPY-URL (the prefix if called interactively) is non-nil, copy
+the URL of the image to the kill buffer instead."
+ (interactive "P")
(let ((url (get-text-property (point) 'image-url)))
- (if (not url)
- (message "No image under point")
+ (cond
+ ((not url)
+ (message "No image under point"))
+ (copy-url
+ (with-temp-buffer
+ (insert url)
+ (copy-region-as-kill (point-min) (point-max))
+ (message "Copied %s" url)))
+ (t
(message "Browsing %s..." url)
- (browse-url url))))
+ (browse-url url)))))
(defun shr-insert-image ()
"Insert the image under point into the buffer."
(forward-char 1))))
(not failed)))
+(defun shr-expand-url (url)
+ (cond
+ ;; Absolute URL.
+ ((or (not url)
+ (string-match "\\`[a-z]*:" url)
+ (not shr-base))
+ url)
+ ((and (not (string-match "/\\'" shr-base))
+ (not (string-match "\\`/" url)))
+ (concat shr-base "/" url))
+ (t
+ (concat shr-base url))))
+
(defun shr-ensure-newline ()
(unless (zerop (current-column))
(insert "\n")))
(inhibit-read-only t))
(delete-region start end)
(goto-char start)
- (shr-put-image data alt)))))))
+ (funcall shr-put-image-function data alt)))))))
(kill-buffer (current-buffer)))
(defun shr-put-image (data alt)
+ "Put image DATA with a string ALT. Return image."
(if (display-graphic-p)
(let ((image (ignore-errors
(shr-rescale-image data))))
(when (and (> (current-column) 0)
(> (car (image-size image t)) 400))
(insert "\n"))
- (insert-image image (or alt "*"))))
+ (insert-image image (or alt "*"))
+ (when (image-animated-p image)
+ (image-animate image nil 60)))
+ image)
(insert alt)))
(defun shr-rescale-image (data)
(if (or (not (fboundp 'imagemagick-types))
(not (get-buffer-window (current-buffer))))
- (create-image data nil t)
- (let* ((image (create-image data nil t))
+ (create-image data nil t
+ :ascent 100)
+ (let* ((image (create-image data nil t :ascent 100))
(size (image-size image t))
(width (car size))
(height (cdr size))
(when (> (car size) window-width)
(setq image (or
(create-image data 'imagemagick t
- :width window-width)
+ :width window-width
+ :ascent 100)
image)))
- (when (and (fboundp 'create-animated-image)
- (eq (image-type data nil t) 'gif))
- (setq image (create-animated-image data 'gif t)))
image)))
;; url-cache-extract autoloads url-cache.
"Return a function to display an image.
CONTENT-FUNCTION is a function to retrieve an image for a cid url that
is an argument. The function to be returned takes three arguments URL,
-START, and END. Note that START and END should be merkers."
+START, and END. Note that START and END should be markers."
`(lambda (url start end)
(when url
(if (string-match "\\`cid:" url)
(substring url (match-end 0)))))
(when image
(goto-char start)
- (shr-put-image image
- (buffer-substring-no-properties start end))
+ (funcall shr-put-image-function
+ image (buffer-substring start end))
(delete-region (point) end))))
(url-retrieve url 'shr-image-fetched
(list (current-buffer) start end)
:help-echo (if title (format "%s (%s)" url title) url)
:keymap shr-map
url)
+ (shr-add-font start (point) 'shr-link)
(put-text-property start (point) 'shr-url url))
(defun shr-encode-url (url)
(when fg
(shr-put-color start end :foreground (cadr new-colors)))
(when bg
- (shr-put-color start end :background (car new-colors)))))))
+ (shr-put-color
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