(defgroup shr nil
"Simple HTML Renderer"
+ :version "24.1"
:group 'mail)
(defcustom shr-max-image-proportion 0.9
;; Public functions and commands.
(defun shr-visit-file (file)
+ "Parse FILE as an HTML document, and render it in a new buffer."
(interactive "fHTML file name: ")
(pop-to-buffer "*html*")
(erase-buffer)
;;;###autoload
(defun shr-insert-document (dom)
+ "Render the parsed document DOM into the current buffer.
+DOM should be a parse tree as generated by
+`libxml-parse-html-region' or similar."
(setq shr-content-cache nil)
- (let ((shr-state nil)
+ (let ((start (point))
+ (shr-state nil)
(shr-start nil)
(shr-base nil)
(shr-width (or shr-width (window-width))))
- (shr-descend (shr-transform-dom dom))))
+ (shr-descend (shr-transform-dom dom))
+ (shr-remove-trailing-whitespace start (point))))
+
+(defun shr-remove-trailing-whitespace (start end)
+ (let ((width (window-width)))
+ (save-restriction
+ (narrow-to-region start end)
+ (goto-char start)
+ (while (not (eobp))
+ (end-of-line)
+ (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))))
+ (forward-line 1)))))
(defun shr-copy-url ()
"Copy the URL under point to the kill ring.
(when (re-search-forward ".utm_.*" nil t)
(replace-match "" t t))
(message "Copied %s" (buffer-string))
- (copy-region-as-kill (point-min) (point-max)))))))
+ (copy-region-as-kill (point-min) (point-max)))))
+ nil t))
;; Copy the URL to the kill ring.
(t
(with-temp-buffer
(message "Inserting %s..." url)
(url-retrieve url 'shr-image-fetched
(list (current-buffer) (1- (point)) (point-marker))
- t))))
+ t t))))
(defun shr-zoom-image ()
"Toggle the image size.
(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)))
(if (not url)
(message "No link under point")
(url-retrieve (shr-encode-url url)
- 'shr-store-contents (list url directory)))))
+ 'shr-store-contents (list url directory)
+ nil t))))
(defun shr-store-contents (status url directory)
(unless (plist-get status :error)
directory)))))
(defun shr-image-fetched (status buffer start end &optional flags)
- (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))
- (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 (current-buffer)))
+ (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."
(delete-region (point) end))))
(url-retrieve url 'shr-image-fetched
(list (current-buffer) start end)
- t)))))
+ t t)))))
(defun shr-heading (cont &rest types)
(shr-ensure-paragraph)
(let ((file (url-cache-create-filename (shr-encode-url url))))
(when (file-exists-p file)
(delete-file file))))
- (funcall
- (if (fboundp 'url-queue-retrieve)
- 'url-queue-retrieve
- 'url-retrieve)
+ (url-queue-retrieve
(shr-encode-url url) 'shr-image-fetched
(list (current-buffer) start (set-marker (make-marker) (1- (point))))
- t)))
+ t t)))
(when (zerop shr-table-depth) ;; We are not in a table.
(put-text-property start (point) 'keymap shr-map)
(put-text-property start (point) 'shr-alt alt)
(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