X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/08b3caa982199bd7939d9d6877203ada5d0083b5..1ddd96f5cf0b06846edd03d6b225c31206cee0b7:/lisp/hl-line.el

diff --git a/lisp/hl-line.el b/lisp/hl-line.el
index dae21af0b8..846f5f9518 100644
--- a/lisp/hl-line.el
+++ b/lisp/hl-line.el
@@ -1,12 +1,11 @@
 ;;; hl-line.el --- highlight the current line
 
-;; Copyright (C) 1998, 2000, 2001, 2002, 2003, 2004,
-;;   2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+;; Copyright (C) 1998, 2000-2011  Free Software Foundation, Inc.
 
 ;; Author:  Dave Love <fx@gnu.org>
 ;; Maintainer: FSF
 ;; Created: 1998-09-13
-;; Keywords: faces, frames, emulation
+;; Keywords: faces, frames, emulations
 
 ;; This file is part of GNU Emacs.
 
@@ -72,7 +71,7 @@
 (defgroup hl-line nil
   "Highlight the current line."
   :version "21.1"
-  :group 'editing)
+  :group 'convenience)
 
 (defface hl-line
   '((t :inherit highlight))
@@ -94,14 +93,26 @@
 	   (overlay-put global-hl-line-overlay 'face hl-line-face))))
 
 (defcustom hl-line-sticky-flag t
-  "*Non-nil means highlight the current line in all windows.
+  "Non-nil means the HL-Line mode highlight appears in all windows.
 Otherwise Hl-Line mode will highlight only in the selected
 window.  Setting this variable takes effect the next time you use
-the command `hl-line-mode' to turn Hl-Line mode on."
+the command `hl-line-mode' to turn Hl-Line mode on.
+
+This variable has no effect in Global Highlight Line mode.
+For that, use `global-hl-line-sticky-flag'."
   :type 'boolean
   :version "22.1"
   :group 'hl-line)
 
+(defcustom global-hl-line-sticky-flag nil
+  "Non-nil means the Global HL-Line mode highlight appears in all windows.
+Otherwise Global Hl-Line mode will highlight only in the selected
+window.  Setting this variable takes effect the next time you use
+the command `global-hl-line-mode' to turn Global Hl-Line mode on."
+  :type 'boolean
+  :version "24.1"
+  :group 'hl-line)
+
 (defvar hl-line-range-function nil
   "If non-nil, function to call to return highlight range.
 The function of no args should return a cons cell; its car value
@@ -155,14 +166,18 @@ addition to `hl-line-highlight' on `post-command-hook'."
 
 (defun hl-line-unhighlight ()
   "Deactivate the Hl-Line overlay on the current line."
-  (if hl-line-overlay
-      (delete-overlay hl-line-overlay)))
+  (when hl-line-overlay
+    (delete-overlay hl-line-overlay)))
 
 ;;;###autoload
 (define-minor-mode global-hl-line-mode
   "Global minor mode to highlight the line about point in the current window.
 With ARG, turn Global-Hl-Line mode on if ARG is positive, off otherwise.
 
+If `global-hl-line-sticky-flag' is non-nil, Global Hl-Line mode
+highlights the line about the current buffer's point in all
+windows.
+
 Global-Hl-Line mode uses the functions `global-hl-line-unhighlight' and
 `global-hl-line-highlight' on `pre-command-hook' and `post-command-hook'."
   :global t
@@ -176,19 +191,21 @@ Global-Hl-Line mode uses the functions `global-hl-line-unhighlight' and
     (remove-hook 'post-command-hook #'global-hl-line-highlight)))
 
 (defun global-hl-line-highlight ()
-  "Active the Global-Hl-Line overlay on the current line in the current window."
+  "Highlight the current line in the current window."
   (when global-hl-line-mode	; Might be changed outside the mode function.
     (unless (window-minibuffer-p (selected-window))
       (unless global-hl-line-overlay
         (setq global-hl-line-overlay (make-overlay 1 1)) ; to be moved
         (overlay-put global-hl-line-overlay 'face hl-line-face))
-      (overlay-put global-hl-line-overlay 'window (selected-window))
+      (overlay-put global-hl-line-overlay 'window
+		   (unless global-hl-line-sticky-flag
+		     (selected-window)))
       (hl-line-move global-hl-line-overlay))))
 
 (defun global-hl-line-unhighlight ()
   "Deactivate the Global-Hl-Line overlay on the current line."
-  (if global-hl-line-overlay
-      (delete-overlay global-hl-line-overlay)))
+  (when global-hl-line-overlay
+    (delete-overlay global-hl-line-overlay)))
 
 (defun hl-line-move (overlay)
   "Move the Hl-Line overlay.
@@ -207,7 +224,16 @@ the line including the point by OVERLAY."
 	(move-overlay overlay b e)
       (move-overlay overlay 1 1))))
 
+(defun hl-line-unload-function ()
+  "Unload the Hl-Line library."
+  (global-hl-line-mode -1)
+  (save-current-buffer
+    (dolist (buffer (buffer-list))
+      (set-buffer buffer)
+      (when hl-line-mode (hl-line-mode -1))))
+  ;; continue standard unloading
+  nil)
+
 (provide 'hl-line)
 
-;; arch-tag: ac806940-0876-4959-8c89-947563ee2833
 ;;; hl-line.el ends here