(defgroup shr nil
"Simple HTML Renderer"
+ :version "24.1"
:group 'mail)
(defcustom shr-max-image-proportion 0.9
(let ((map (make-sparse-keymap)))
(define-key map "a" 'shr-show-alt-text)
(define-key map "i" 'shr-browse-image)
+ (define-key map "z" 'shr-zoom-image)
(define-key map "I" 'shr-insert-image)
(define-key map "u" 'shr-copy-url)
(define-key map "v" 'shr-browse-url)
(goto-char start)
(while (not (eobp))
(end-of-line)
- (when (> (current-column) width)
+ (when (> (shr-previous-newline-padding-width (current-column)) width)
(dolist (overlay (overlays-at (point)))
(when (overlay-get overlay 'before-string)
(overlay-put overlay 'before-string nil))))
(list (current-buffer) (1- (point)) (point-marker))
t t))))
+(defun shr-zoom-image ()
+ "Toggle the image size.
+The size will be rotated between the default size, the original
+size, and full-buffer size."
+ (interactive)
+ (let ((url (get-text-property (point) 'image-url))
+ (size (get-text-property (point) 'image-size))
+ (buffer-read-only nil))
+ (if (not url)
+ (message "No image under point")
+ ;; Delete the old picture.
+ (while (get-text-property (point) 'image-url)
+ (forward-char -1))
+ (forward-char 1)
+ (let ((start (point)))
+ (while (get-text-property (point) 'image-url)
+ (forward-char 1))
+ (forward-char -1)
+ (put-text-property start (point) 'display nil)
+ (when (> (- (point) start) 2)
+ (delete-region start (1- (point)))))
+ (message "Inserting %s..." url)
+ (url-retrieve url 'shr-image-fetched
+ (list (current-buffer) (1- (point)) (point-marker)
+ (list (cons 'size
+ (cond ((or (eq size 'default)
+ (null size))
+ 'original)
+ ((eq size 'original)
+ 'full)
+ ((eq size 'full)
+ 'default)))))
+ t))))
+
;;; Utility functions.
(defun shr-transform-dom (dom)
(when (eq (preceding-char) ? )
(delete-char -1))
(insert "\n")
+ (put-text-property (1- (point)) (point) 'shr-break t)
(unless found
- (put-text-property (1- (point)) (point) 'shr-break t)
;; No space is needed at the beginning of a line.
(when (eq (following-char) ? )
(delete-char 1)))
(expand-file-name (file-name-nondirectory url)
directory)))))
-(defun shr-image-fetched (status buffer start end)
- (when (and (buffer-name buffer)
- (not (plist-get status :error)))
- (url-store-in-cache (current-buffer))
- (when (or (search-forward "\n\n" nil t)
- (search-forward "\r\n\r\n" nil t))
- (let ((data (buffer-substring (point) (point-max))))
- (with-current-buffer buffer
- (save-excursion
- (let ((alt (buffer-substring start end))
- (inhibit-read-only t))
- (delete-region start end)
- (goto-char start)
- (funcall shr-put-image-function data alt)))))))
- (kill-buffer (current-buffer)))
-
-(defun shr-put-image (data alt)
+(defun shr-image-fetched (status buffer start end &optional flags)
+ (let ((image-buffer (current-buffer)))
+ (when (and (buffer-name buffer)
+ (not (plist-get status :error)))
+ (url-store-in-cache image-buffer)
+ (when (or (search-forward "\n\n" nil t)
+ (search-forward "\r\n\r\n" nil t))
+ (let ((data (buffer-substring (point) (point-max))))
+ (with-current-buffer buffer
+ (save-excursion
+ (let ((alt (buffer-substring start end))
+ (properties (text-properties-at start))
+ (inhibit-read-only t))
+ (delete-region start end)
+ (goto-char start)
+ (funcall shr-put-image-function data alt flags)
+ (while properties
+ (let ((type (pop properties))
+ (value (pop properties)))
+ (unless (memq type '(display image-size))
+ (put-text-property start (point) type value))))))))))
+ (kill-buffer image-buffer)))
+
+(defun shr-put-image (data alt &optional flags)
"Put image DATA with a string ALT. Return image."
(if (display-graphic-p)
- (let ((image (ignore-errors
- (shr-rescale-image data))))
+ (let* ((size (cdr (assq 'size flags)))
+ (start (point))
+ (image (cond
+ ((eq size 'original)
+ (create-image data nil t :ascent 100))
+ ((eq size 'full)
+ (ignore-errors
+ (shr-rescale-image data t)))
+ (t
+ (ignore-errors
+ (shr-rescale-image data))))))
(when image
;; When inserting big-ish pictures, put them at the
;; beginning of the line.
(when (and (> (current-column) 0)
(> (car (image-size image t)) 400))
(insert "\n"))
- (insert-image image (or alt "*"))
+ (if (eq size 'original)
+ (let ((overlays (overlays-at (point))))
+ (insert-sliced-image image (or alt "*") nil 20 1)
+ (dolist (overlay overlays)
+ (overlay-put overlay 'face 'default)))
+ (insert-image image (or alt "*")))
+ (put-text-property start (point) 'image-size size)
(when (image-animated-p image)
(image-animate image nil 60)))
image)
(insert alt)))
-(defun shr-rescale-image (data)
+(defun shr-rescale-image (data &optional force)
+ "Rescale DATA, if too big, to fit the current buffer.
+If FORCE, rescale the image anyway."
(let ((image (create-image data nil t :ascent 100)))
(if (or (not (fboundp 'imagemagick-types))
(not (get-buffer-window (current-buffer))))
(window-height (truncate (* shr-max-image-proportion
(- (nth 3 edges) (nth 1 edges)))))
scaled-image)
- (when (> height window-height)
+ (when (or force
+ (> height window-height))
(setq image (or (create-image data 'imagemagick t
:height window-height
:ascent 100)
(aset natural-widths i (max (aref natural-widths i)
(cadr column)))
(setq i (1+ i)))))
- (let ((extra (- (apply '+ (append suggested-widths nil))
- (apply '+ (append widths nil))))
- (expanded-columns 0))
+ (let* ((total-suggested (apply '+ (append suggested-widths nil)))
+ (total-actual (apply '+ (append widths nil)))
+ (extra (- total-suggested
+ total-actual
+ ;; TD separators.
+ (length widths)
+ ;; Table separators + fence.
+ 3
+ (* 2 shr-table-depth)))
+ (expanded-columns 0))
+ ;; We have extra, unused space, so divide this space amongst the
+ ;; columns.
(when (> extra 0)
+ ;; If the natural width is wider than the rendered width, we
+ ;; want to allow the column to expand.
(dotimes (i length)
- ;; If the natural width is wider than the rendered width, we
- ;; want to allow the column to expand.
- (when (> (aref natural-widths i) (aref widths i))
- (setq expanded-columns (1+ expanded-columns))))
- (dotimes (i length)
- (when (> (aref natural-widths i) (aref widths i))
- (aset widths i (min
- (1+ (aref natural-widths i))
- (+ (/ extra expanded-columns)
- (aref widths i))))))))
+ (when (> (aref natural-widths i) 0)
+ (aset widths i (+ (truncate (* (/ extra (* 1.0 total-actual))
+ (aref widths i)))
+ (aref widths i)))))))
widths))
(defun shr-make-table (cont widths &optional fill)
(let ((shr-width width)
(shr-indentation 0))
(shr-descend (cons 'td cont)))
+ ;; Delete padding at the bottom of the TDs.
(delete-region
(point)
- (+ (point)
- (skip-chars-backward " \t\n")))
+ (progn
+ (skip-chars-backward " \t\n")
+ (end-of-line)
+ (point)))
(push (list (cons width cont) (buffer-string)
(shr-overlays-in-region (point-min) (point-max)))
shr-content-cache)))
(while (not (eobp))
(end-of-line)
(setq current (+ current (current-column)))
- (unless (get-text-property (point) 'shr-break)
+ (if (get-text-property (point) 'shr-break)
+ (incf current)
(setq max (max max current)
current 0))
(forward-line 1))
(when (memq (car column) '(td th))
(let ((width (cdr (assq :width (cdr column)))))
(when (and width
- (string-match "\\([0-9]+\\)%" width))
- (aset columns i
- (/ (string-to-number (match-string 1 width))
- 100.0))))
+ (string-match "\\([0-9]+\\)%" width)
+ (not (zerop (setq width (string-to-number
+ (match-string 1 width))))))
+ (aset columns i (/ width 100.0))))
(setq i (1+ i)))))))
columns))
projects / gnus / blobdiff