(Buffer-menu-make-sort-button) Make sorting by mouse-2 work from a different window.

[bpt/emacs.git] / lisp / view.el

diff --git a/lisp/view.el b/lisp/view.el
index 2812309..e184d68 100644 (file)
--- a/lisp/view.el
+++ b/lisp/view.el
@@ -117,12 +117,12 @@ functions that enable or disable view mode.")
 
 (defvar view-page-size nil
   "Default number of lines to scroll by View page commands.
-If nil then the local value of this is initially set to window size.")
+If nil that means use the window size.")
 (make-variable-buffer-local 'view-page-size)
 
 (defvar view-half-page-size nil
   "Default number of lines to scroll by View half page commands.
-If nil then the local value of this is initially set to half window size.")
+If nil that means use half the window size.")
 (make-variable-buffer-local 'view-half-page-size)
 
 (defvar view-last-regexp nil)
@@ -137,6 +137,7 @@ subtracted from by `view-mode-exit' when finished viewing the buffer.
 See RETURN-TO-ALIST argument of function `view-mode-exit' for the format of
 `view-return-to-alist'.")
 (make-variable-buffer-local 'view-return-to-alist)
+(put 'view-return-to-alist 'permanent-local t)
 
 (defvar view-exit-action nil
   "nil or a function with one argument (a buffer) called when finished viewing.
@@ -452,8 +453,8 @@ Entry to view-mode runs the normal hook `view-mode-hook'."
   ;; This is to guarantee that the buffer-read-only variable is restored.
   (add-hook 'change-major-mode-hook 'view-mode-disable nil t)
   (setq view-mode t
-       view-page-size (view-page-size-default view-page-size)
-       view-half-page-size (or view-half-page-size (/ (view-window-size) 2))
+       view-page-size nil
+       view-half-page-size nil
        view-old-buffer-read-only buffer-read-only
        buffer-read-only t
        view-old-Helper-return-blurb (and (boundp 'Helper-return-blurb)
@@ -674,7 +675,8 @@ previous state and go to previous buffer or window."
 
 (defun view-set-half-page-size-default (lines)
   ;; Get and maybe set half page size.
-  (if (not lines) view-half-page-size
+  (if (not lines) (or view-half-page-size
+                     (/ (view-window-size) 2))
     (setq view-half-page-size
          (if (zerop (setq lines (prefix-numeric-value lines)))
              (/ (view-window-size) 2)
@@ -802,13 +804,13 @@ Exit if end of text is visible and `view-scroll-auto-exit' is non-nil.
 \\[View-scroll-page-backward-set-page-size].
 If LINES is more than a window-full, only the last window-full is shown."
   (interactive "P")
-  (view-scroll-lines lines nil view-page-size nil))
+  (view-scroll-lines lines nil (view-page-size-default view-page-size) nil))
 
 (defun View-scroll-page-backward (&optional lines)
   "Scroll \"page size\" or prefix LINES lines backward in View mode.
 See also `View-scroll-page-forward'."
   (interactive "P")
-  (view-scroll-lines lines t view-page-size nil))
+  (view-scroll-lines lines t (view-page-size-default view-page-size) nil))
 
 (defun View-scroll-page-forward-set-page-size (&optional lines)
   "Scroll forward LINES lines in View mode, setting the \"page size\".
@@ -1002,4 +1004,5 @@ for highlighting the match that is found."
 
 (provide 'view)
 
+;;; arch-tag: 6d0ace36-1d12-4de3-8de3-1fa3231636d7
 ;;; view.el ends here