X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/3a8b7013042adae3c27327a75662fd8e884d4896..7bc7fd6058a28cdf7da672dc625c6d3f2e50aa1b:/lisp/doc-view.el

diff --git a/lisp/doc-view.el b/lisp/doc-view.el
index 0e63d37adc..06cf8dcef3 100644
--- a/lisp/doc-view.el
+++ b/lisp/doc-view.el
@@ -1,6 +1,6 @@
 ;;; doc-view.el --- View PDF/PostScript/DVI files in Emacs -*- lexical-binding: t -*-
 
-;; Copyright (C) 2007-2015 Free Software Foundation, Inc.
+;; Copyright (C) 2007-2016 Free Software Foundation, Inc.
 ;;
 ;; Author: Tassilo Horn <tsdh@gnu.org>
 ;; Maintainer: Tassilo Horn <tsdh@gnu.org>
@@ -415,7 +415,6 @@ Typically \"page-%s.png\".")
     (define-key map "H"               'doc-view-fit-height-to-window)
     (define-key map "P"               'doc-view-fit-page-to-window)
     ;; Killing the buffer (and the process)
-    (define-key map (kbd "k")         'doc-view-kill-proc-and-buffer)
     (define-key map (kbd "K")         'doc-view-kill-proc)
     ;; Slicing the image
     (define-key map (kbd "s s")       'doc-view-set-slice)
@@ -441,10 +440,23 @@ Typically \"page-%s.png\".")
 
 (defun doc-view-revert-buffer (&optional ignore-auto noconfirm)
   "Like `revert-buffer', but preserves the buffer's current modes."
-  ;; FIXME: this should probably be moved to files.el and used for
-  ;; most/all "g" bindings to revert-buffer.
   (interactive (list (not current-prefix-arg)))
-  (revert-buffer ignore-auto noconfirm 'preserve-modes))
+  (cl-labels ((revert ()
+                      (let (revert-buffer-function)
+                        (revert-buffer ignore-auto noconfirm 'preserve-modes))))
+    (if (and (eq 'pdf doc-view-doc-type)
+             (executable-find "pdfinfo"))
+        ;; We don't want to revert if the PDF file is corrupted which
+        ;; might happen when it it currently recompiled from a tex
+        ;; file.  (TODO: We'd like to have something like that also
+        ;; for other types, at least PS, but I don't know a good way
+        ;; to test if a PS file is complete.)
+        (if (= 0 (call-process (executable-find "pdfinfo") nil nil nil
+                               doc-view--buffer-file-name))
+            (revert)
+          (when (called-interactively-p 'interactive)
+            (message "Can't revert right now because the file is corrupted.")))
+      (revert))))
 
 
 (easy-menu-define doc-view-menu doc-view-mode-map
@@ -645,12 +657,8 @@ at the top edge of the page moves to the previous page."
     (setq doc-view--current-timer nil))
   (setq mode-line-process nil))
 
-(defun doc-view-kill-proc-and-buffer ()
-  "Kill the current converter process and buffer."
-  (interactive)
-  (doc-view-kill-proc)
-  (when (eq major-mode 'doc-view-mode)
-    (kill-buffer (current-buffer))))
+(define-obsolete-function-alias 'doc-view-kill-proc-and-buffer
+  #'image-kill-buffer "25.1")
 
 (defun doc-view-make-safe-dir (dir)
   (condition-case nil
@@ -1653,7 +1661,7 @@ If BACKWARD is non-nil, jump to the previous match."
                    ;; Microsoft Office formats (also handled by the odf
                    ;; conversion chain).
                    ("doc" odf) ("docx" odf) ("xls" odf) ("xlsx" odf)
-                   ("ppt" odf) ("pps" odf) ("pptx" odf))
+                   ("ppt" odf) ("pps" odf) ("pptx" odf) ("rtf" odf))
 		 t))))
 	(content-types
 	 (save-excursion
@@ -1685,6 +1693,9 @@ If BACKWARD is non-nil, jump to the previous match."
 ;; desktop.el integration
 
 (defun doc-view-desktop-save-buffer (_desktop-dirname)
+  ;; FIXME: This is wrong, since this info is per-window but we only do it once
+  ;; here for the buffer.  IOW it should be saved via something like
+  ;; `window-persistent-parameters'.
   `((page . ,(doc-view-current-page))
     (slice . ,(doc-view-current-slice))))
 
@@ -1695,10 +1706,16 @@ If BACKWARD is non-nil, jump to the previous match."
   (let ((page  (cdr (assq 'page misc)))
 	(slice (cdr (assq 'slice misc))))
     (desktop-restore-file-buffer file name misc)
+    ;; FIXME: We need to run this code after displaying the buffer.
     (with-selected-window (or (get-buffer-window (current-buffer) 0)
 			      (selected-window))
+      ;; FIXME: This should be done for all windows restored that show
+      ;; this buffer.  Basically, the page/slice should be saved as
+      ;; window-parameters in the window-state(s) and then restoring this
+      ;; window-state should call us back (to interpret/use those parameters).
       (doc-view-goto-page page)
-      (when slice (apply 'doc-view-set-slice slice)))))
+      (when slice (apply 'doc-view-set-slice slice))
+      (current-buffer))))
 
 (add-to-list 'desktop-buffer-mode-handlers
 	     '(doc-view-mode . doc-view-restore-desktop-buffer))
@@ -1763,6 +1780,8 @@ toggle between displaying the document or editing it as text.
     (when (not (string= doc-view--buffer-file-name buffer-file-name))
       (write-region nil nil doc-view--buffer-file-name))
 
+    (setq-local revert-buffer-function #'doc-view-revert-buffer)
+
     (add-hook 'change-major-mode-hook
 	      (lambda ()
 		(doc-view-kill-proc)
@@ -1770,9 +1789,7 @@ toggle between displaying the document or editing it as text.
 	      nil t)
     (add-hook 'clone-indirect-buffer-hook 'doc-view-clone-buffer-hook nil t)
     (add-hook 'kill-buffer-hook 'doc-view-kill-proc nil t)
-    (when (and (boundp 'desktop-save-mode)
-	       desktop-save-mode)
-      (setq-local desktop-save-buffer 'doc-view-desktop-save-buffer))
+    (setq-local desktop-save-buffer 'doc-view-desktop-save-buffer)
 
     (remove-overlays (point-min) (point-max) 'doc-view t) ;Just in case.
     ;; Keep track of display info ([vh]scroll, page number, overlay,