GNU bug report logs - #6888
mouse-autoselect-window on OS X

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From: Jan Djärv <jan.h.d <at> swipnet.se>
To: martin rudalics <rudalics <at> gmx.at>
Cc: Davor Cubranic <cubranic <at> stat.ubc.ca>, 6888 <at> debbugs.gnu.org
Subject: bug#6888: Patch for mouse-autoselect-window on NextStep platforms
Date: Mon, 26 Aug 2013 17:07:14 +0200

26 aug 2013 kl. 15:16 skrev martin rudalics <rudalics <at> gmx.at>:

>> It does but I don't want to check it in as is.  It needs formatting fixes and there is some unfortunate code duplication that needs to be done in another way.
> 
> Can you please tell Davor how to rewrite it?
> 
> Thanks, martin

=== modified file 'src/nsterm.m'
--- src/nsterm.m	2013-08-23 04:03:25 +0000
+++ src/nsterm.m	2013-08-24 09:18:57 +0000
@@ -184,6 +184,9 @@
 Lisp_Object ns_display_name_list;
 long context_menu_value = 0;
 
+/* Last window where we saw the mouse.  Used by mouse-autoselect-window.  */
+static Lisp_Object last_window;
+
 /* display update */
 NSPoint last_mouse_motion_position;
 static NSRect last_mouse_glyph;
@@ -308,8 +311,13 @@
 /* This is a piece of code which is common to all the event handling
    methods.  Maybe it should even be a function.  */
 #define EV_TRAILER(e)                                                   \
-    {                                                                   \
-      XSETFRAME (emacs_event->frame_or_window, emacsframe);             \
+  {                                                                     \
+    XSETFRAME (emacs_event->frame_or_window, emacsframe);               \
+    EV_TRAILER2 (e);                                                    \
+  }
+
+#define EV_TRAILER2(e)                                                  \
+  {                                                                     \
       if (e) emacs_event->timestamp = EV_TIMESTAMP (e);                 \
       if (q_event_ptr)                                                  \
         {                                                               \
@@ -5490,6 +5498,27 @@
   previous_help_echo_string = help_echo_string;
   help_echo_string = Qnil;
 
+  if (!NILP (Vmouse_autoselect_window))
+    {
+      NSTRACE (mouse_autoselect_window);
+      Lisp_Object window;
+      window = window_from_coordinates(emacsframe, last_mouse_motion_position.x,
+                                       last_mouse_motion_position.y, 0, 0);
+      if (WINDOWP (window)
+          && !EQ (window, last_window)
+          && !EQ (window, selected_window)
+          && (focus_follows_mouse
+              || (EQ (XWINDOW (window)->frame,
+                      XWINDOW (selected_window)->frame))))
+        {
+          NSTRACE (in_window);
+          emacs_event->kind = SELECT_WINDOW_EVENT;
+          emacs_event->frame_or_window = window;
+          EV_TRAILER2 (e);
+        }
+      last_window = window;
+    }
+
   if (!note_mouse_movement (emacsframe, last_mouse_motion_position.x,
                             last_mouse_motion_position.y))
     help_echo_string = previous_help_echo_string;

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