Doc fixes for menu-bar.el

[gnu-emacs] / lisp / image-mode.el

diff --git a/lisp/image-mode.el b/lisp/image-mode.el
index b94162d413a2d1d27baa4e69028b27337fc6ee59..e549b49001e0645a2897c623b6de89ee4a61a8a0 100644 (file)
--- a/lisp/image-mode.el
+++ b/lisp/image-mode.el
@@ -1,6 +1,6 @@
 ;;; image-mode.el --- support for visiting image files  -*- lexical-binding: t -*-
 ;;
-;; Copyright (C) 2005-2014 Free Software Foundation, Inc.
+;; Copyright (C) 2005-2016 Free Software Foundation, Inc.
 ;;
 ;; Author: Richard Stallman <rms@gnu.org>
 ;; Keywords: multimedia
@@ -153,6 +153,8 @@ otherwise it defaults to t, used for times when the buffer is not displayed."
                          (selected-window))))
 
 (declare-function image-size "image.c" (spec &optional pixels frame))
+(declare-function xwidget-info "xwidget.c" (xwidget))
+(declare-function xwidget-at "xwidget.el" (pos))
 
 (defun image-display-size (spec &optional pixels frame)
   "Wrapper around `image-size', handling slice display properties.
@@ -160,24 +162,29 @@ Like `image-size', the return value is (WIDTH . HEIGHT).
 WIDTH and HEIGHT are in canonical character units if PIXELS is
 nil, and in pixel units if PIXELS is non-nil.
 
-If SPEC is an image display property, this function is equivalent
-to `image-size'.  If SPEC is a list of properties containing
-`image' and `slice' properties, return the display size taking
-the slice property into account.  If the list contains `image'
-but not `slice', return the `image-size' of the specified image."
-  (if (eq (car spec) 'image)
-      (image-size spec pixels frame)
-    (let ((image (assoc 'image spec))
-         (slice (assoc 'slice spec)))
-      (cond ((and image slice)
-            (if pixels
-                (cons (nth 3 slice) (nth 4 slice))
-              (cons (/ (float (nth 3 slice)) (frame-char-width frame))
-                    (/ (float (nth 4 slice)) (frame-char-height frame)))))
-           (image
-            (image-size image pixels frame))
-           (t
-            (error "Invalid image specification: %s" spec))))))
+If SPEC is an image display property, this function is equivalent to
+`image-size'.  If SPEC represents an xwidget object, defer to `xwidget-info'.
+If SPEC is a list of properties containing `image' and `slice' properties,
+return the display size taking the slice property into account.  If the list
+contains `image' but not `slice', return the `image-size' of the specified
+image."
+  (cond ((eq (car spec) 'xwidget)
+         (let ((xwi (xwidget-info (xwidget-at (point-min)))))
+           (cons (aref xwi 2) (aref xwi 3))))
+        ((eq (car spec) 'image)
+         (image-size spec pixels frame))
+        (t (let ((image (assoc 'image spec))
+                 (slice (assoc 'slice spec)))
+             (cond ((and image slice)
+                    (if pixels
+                        (cons (nth 3 slice) (nth 4 slice))
+                      (cons (/ (float (nth 3 slice)) (frame-char-width frame))
+                            (/ (float (nth 4 slice))
+                               (frame-char-height frame)))))
+                   (image
+                    (image-size image pixels frame))
+                   (t
+                    (error "Invalid image specification: %s" spec)))))))
 
 (defun image-forward-hscroll (&optional n)
   "Scroll image in current window to the left by N character widths.
@@ -380,6 +387,7 @@ call."
     (define-key map "a-" 'image-decrease-speed)
     (define-key map "a0" 'image-reset-speed)
     (define-key map "ar" 'image-reverse-speed)
+    (define-key map "k" 'image-kill-buffer)
     (define-key map [remap forward-char] 'image-forward-hscroll)
     (define-key map [remap backward-char] 'image-backward-hscroll)
     (define-key map [remap right-char] 'image-forward-hscroll)
@@ -657,7 +665,12 @@ was inserted."
                           (not (and (boundp 'archive-superior-buffer)
                                     archive-superior-buffer))
                           (not (and (boundp 'tar-superior-buffer)
-                                    tar-superior-buffer)))))
+                                    tar-superior-buffer))
+                           ;; This means the buffer holds the
+                           ;; decrypted content (bug#21870).
+                           (not (and (boundp 'epa-file-encrypt-to)
+                                     (local-variable-p
+                                      'epa-file-encrypt-to))))))
         (file-or-data (if data-p
                           (string-make-unibyte
                            (buffer-substring-no-properties (point-min) (point-max)))
@@ -722,6 +735,11 @@ the image by calling `image-mode'."
       (image-mode-as-text)
     (image-mode)))
 
+(defun image-kill-buffer ()
+  "Kill the current buffer."
+  (interactive)
+  (kill-buffer (current-buffer)))
+
 (defun image-after-revert-hook ()
   (when (image-get-display-property)
     (image-toggle-display-text)