Merge from emacs-23; up to 2010-06-11T14:39:54Z!cyd@stupidchicken.com.

[gnu-emacs] / lisp / t-mouse.el

diff --git a/lisp/t-mouse.el b/lisp/t-mouse.el
index 6026f6a70deed2bd72fe7c64133bc76710a27443..059024c4bce0da6e56446bff219cd2def2c0f39d 100644 (file)
--- a/lisp/t-mouse.el
+++ b/lisp/t-mouse.el
@@ -4,8 +4,7 @@
 ;; Maintainer: FSF
 ;; Keywords: mouse gpm linux
 
-;; Copyright (C) 1994, 1995, 1998, 2006, 2007, 2008
-;;   Free Software Foundation, Inc.
+;; Copyright (C) 1994-1995, 1998, 2006-2011  Free Software Foundation, Inc.
 
 ;; This file is part of GNU Emacs.
 
@@ -41,6 +40,27 @@
 ;; Prevent warning when compiling in an Emacs without gpm support.
 (declare-function gpm-mouse-start "term.c" ())
 
+(defun gpm-mouse-enable ()
+  "Try to enable gpm mouse support on the current terminal."
+  (let ((activated nil))
+    (unwind-protect
+        (progn
+          (unless (fboundp 'gpm-mouse-start)
+            (error "Emacs must be built with Gpm to use this mode"))
+          (when gpm-mouse-mode
+            (gpm-mouse-start)
+            (set-terminal-parameter nil 'gpm-mouse-active t)
+            (setq activated t)))
+      ;; If something failed to turn it on, try to turn it off as well,
+      ;; just in case.
+      (unless activated (gpm-mouse-disable)))))
+
+(defun gpm-mouse-disable ()
+  "Try to disable gpm mouse support on the current terminal."
+  (when (fboundp 'gpm-mouse-stop)
+    (gpm-mouse-stop))
+  (set-terminal-parameter nil 'gpm-mouse-active nil))
+
 ;;;###autoload
 (define-obsolete-function-alias 't-mouse-mode 'gpm-mouse-mode "23.1")
 ;;;###autoload
@@ -52,23 +72,15 @@ otherwise turn it off.
 This allows the use of the mouse when operating on a GNU/Linux console,
 in the same way as you can use the mouse under X11.
 It relies on the `gpm' daemon being activated."
-  :global t :group 'mouse
-  (let ((activated nil))
-    (unwind-protect
-        (progn
-          (unless (fboundp 'gpm-mouse-start)
-            (error "Emacs must be built with Gpm to use this mode"))
-          (when gpm-mouse-mode
-            (gpm-mouse-start)
-            (setq activated t)))
-      ;; If the user asked to turn it off do that.
-      ;; If something failed to turn it on, try to turn it off as well,
-      ;; just in case.
-      (when (and (fboundp 'gpm-mouse-stop) (not activated))
-        (setq gpm-mouse-mode nil)
-        (gpm-mouse-stop)))))
+  :global t :group 'mouse :init-value t
+  (dolist (terminal (terminal-list))
+    (when (and (eq t (terminal-live-p terminal))
+               (not (eq gpm-mouse-mode
+                        (terminal-parameter terminal 'gpm-mouse-active))))
+      ;; Simulate selecting a terminal by selecting one of its frames ;-(
+      (with-selected-frame (car (frames-on-display-list terminal))
+        (if gpm-mouse-mode (gpm-mouse-enable) (gpm-mouse-disable))))))
 
 (provide 't-mouse)
 
-;; arch-tag: a63163b3-bfbe-4eb2-ab4f-201cd164b05d
 ;;; t-mouse.el ends here