From 3c5a7a3c3277d3e1515388b6913d2f89ac50f4bf Mon Sep 17 00:00:00 2001
From: Stefan Monnier <monnier@iro.umontreal.ca>
Date: Wed, 11 Jun 2008 02:16:45 +0000
Subject: [PATCH] * t-mouse.el (gpm-mouse-enable, gpm-mouse-disable): New
 functions. (gpm-mouse-mode): Make it into a proper global minor mode. *
 term/linux.el (terminal-init-linux): Use gpm-mouse-enable.

---
 lisp/ChangeLog     |  5 +++++
 lisp/t-mouse.el    | 44 +++++++++++++++++++++++++++++---------------
 lisp/term/linux.el |  2 +-
 3 files changed, 35 insertions(+), 16 deletions(-)

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 3810d954628..390f9025daa 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,5 +1,10 @@
 2008-06-11  Stefan Monnier  <monnier@iro.umontreal.ca>
 
+	* term/linux.el (terminal-init-linux): Use gpm-mouse-enable.
+
+	* t-mouse.el (gpm-mouse-enable, gpm-mouse-disable): New functions.
+	(gpm-mouse-mode): Make it into a proper global minor mode.
+
 	* files.el (save-some-buffers-action-alist): Only use recursive-edit
 	if the user enabled recursive-minibuffers.
 
diff --git a/lisp/t-mouse.el b/lisp/t-mouse.el
index 6026f6a70de..10d5ba71ed6 100644
--- a/lisp/t-mouse.el
+++ b/lisp/t-mouse.el
@@ -41,6 +41,27 @@
 ;; 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
@@ -52,21 +73,14 @@ 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)
 
diff --git a/lisp/term/linux.el b/lisp/term/linux.el
index ea1e2fbe700..60bb7b3d925 100644
--- a/lisp/term/linux.el
+++ b/lisp/term/linux.el
@@ -9,7 +9,7 @@
   ;; It can't really display underlines.
   (tty-no-underline)
 
-  (ignore-errors (gpm-mouse-mode 1))
+  (ignore-errors (if gpm-mouse-mode (gpm-mouse-enable)))
 
   ;; Make Latin-1 input characters work, too.
   ;; Meta will continue to work, because the kernel
-- 
2.39.2