(mac_handle_text_input_event):

Check if display is up to date before accessing current matrix.

2 files changed, 18 insertions, 1 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index cd2263fa43c..dd1c35f3578 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,10 @@
+2008-08-20  YAMAMOTO Mitsuharu  <mituharu@math.s.chiba-u.ac.jp>
+
+        * macterm.c (x_load_font): Round average width to the nearest integer.
+
+        * mactoolbox.c [USE_MAC_TSM] (mac_handle_text_input_event):
+        Check if display is up to date before accessing current matrix.
+
 2008-08-15  Chong Yidong  <cyd@stupidchicken.com>
 
         * process.c (make_process): Initialize kill_without_query struct
diff --git a/src/mactoolbox.c b/src/mactoolbox.c
index f470c517554..58d975742e6 100644
--- a/src/mactoolbox.c
+++ b/src/mactoolbox.c
@@ -570,6 +570,7 @@ mac_handle_text_input_event (next_handler, event, data)
 #ifndef MAC_OSX
             break;
 #else  /* MAC_OSX */
+            struct buffer *b;
             CFRange sel_range;
             int charpos;
             int hpos, vpos, x, y;
@@ -579,8 +580,17 @@ mac_handle_text_input_event (next_handler, event, data)
 
             f = mac_focus_frame (&one_mac_display_info);
             w = XWINDOW (f->selected_window);
+            b = XBUFFER (w->buffer);
+
+            /* Are we in a window whose display is up to date?
+               And verify the buffer's text has not changed.  */
+            if (!(EQ (w->window_end_valid, w->buffer)
+                  && XINT (w->last_modified) == BUF_MODIFF (b)
+                  && XINT (w->last_overlay_modified) == BUF_OVERLAY_MODIFF (b)))
+              break;
+
             mac_get_selected_range (w, &sel_range);
-            charpos = (BUF_BEGV (XBUFFER (w->buffer)) + sel_range.location
+            charpos = (BUF_BEGV (b) + sel_range.location
                        + byte_offset / (long) sizeof (UniChar));
 
             if (!fast_find_position (w, charpos, &hpos, &vpos, &x, &y, Qnil))