5 files changed, 71 insertions, 7 deletions

diff --git a/lwlib/ChangeLog b/lwlib/ChangeLog
index 904d8eadf05..d3e8c2eb4c3 100644
--- a/lwlib/ChangeLog
+++ b/lwlib/ChangeLog
@@ -1,3 +1,19 @@
+2007-01-01  Jan Dj,Ad(Brv  <jan.h.d@swipnet.se>
+
+        * xlwmenu.c (xlwMenuResources): Add XtNleaveCallback, XtNenterCallback.
+        (display_menu, map_event_to_widget_value): Generate enter and
+        leave callbacks.
+        (pop_up_menu): Initialize mw->menu.inside_entry.
+
+        * xlwmenu.h (XtNleaveCallback, XtNenterCallback): New strings.
+
+        * xlwmenuP.h (_XlwMenu_part): Add enter/leave callbacks and
+        inside_entry.
+
+        * lwlib-Xlw.c (enter_hook, leave_hook): New functions
+        (xlw_create_menubar, xlw_create_popup_menu): Connect XtNenter/leave
+        to enter/leave_hook.
+
 2006-10-30  Chong Yidong  <cyd@stupidchicken.com>
 
         * Makefile.in (lwlib-utils.o): Use CPPFLAGS.
diff --git a/lwlib/lwlib-Xlw.c b/lwlib/lwlib-Xlw.c
index 4799b1dbd9d..dd366e4cca1 100644
--- a/lwlib/lwlib-Xlw.c
+++ b/lwlib/lwlib-Xlw.c
@@ -84,6 +84,25 @@ highlight_hook (w, client_data, call_data)
 }
 
 static void
+enter_hook (w, client_data, call_data)
+     Widget w;
+     XtPointer client_data;
+     XtPointer call_data;
+{
+  highlight_hook (w, client_data, call_data);
+}
+
+static void
+leave_hook (w, client_data, call_data)
+     Widget w;
+     XtPointer client_data;
+     XtPointer call_data;
+{
+  highlight_hook (w, client_data, NULL);
+}
+
+
+static void
 pre_hook (w, client_data, call_data)
      Widget w;
      XtPointer client_data;
@@ -152,8 +171,8 @@ xlw_create_menubar (instance)
 
   XtAddCallback (widget, XtNopen, pre_hook, (XtPointer)instance);
   XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance);
-  XtAddCallback (widget, XtNhighlightCallback, highlight_hook,
-                 (XtPointer)instance);
+  XtAddCallback (widget, XtNleaveCallback, leave_hook, (XtPointer)instance);
+  XtAddCallback (widget, XtNenterCallback, enter_hook, (XtPointer)instance);
   return widget;
 }
 
@@ -179,8 +198,8 @@ xlw_create_popup_menu (instance)
                              popup_shell, al, ac);
 
   XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance);
-  XtAddCallback (widget, XtNhighlightCallback, highlight_hook,
-                 (XtPointer)instance);
+  XtAddCallback (widget, XtNleaveCallback, leave_hook, (XtPointer)instance);
+  XtAddCallback (widget, XtNenterCallback, enter_hook, (XtPointer)instance);
 
   return popup_shell;
 }
diff --git a/lwlib/xlwmenu.c b/lwlib/xlwmenu.c
index 77cc50e9d7a..fc73746dc86 100644
--- a/lwlib/xlwmenu.c
+++ b/lwlib/xlwmenu.c
@@ -161,6 +161,10 @@ xlwMenuResources[] =
      offset(menu.select), XtRCallback, (XtPointer)NULL},
   {XtNhighlightCallback, XtCCallback, XtRCallback, sizeof(XtPointer),
      offset(menu.highlight), XtRCallback, (XtPointer)NULL},
+  {XtNenterCallback, XtCCallback, XtRCallback, sizeof(XtPointer),
+     offset(menu.enter), XtRCallback, (XtPointer)NULL},
+  {XtNleaveCallback, XtCCallback, XtRCallback, sizeof(XtPointer),
+     offset(menu.leave), XtRCallback, (XtPointer)NULL},
   {XtNmenu, XtCMenu, XtRPointer, sizeof(XtPointer),
      offset(menu.contents), XtRImmediate, (XtPointer)NULL},
   {XtNcursor, XtCCursor, XtRCursor, sizeof(Cursor),
@@ -1186,8 +1190,17 @@ display_menu (mw, level, just_compute_p, highlighted_pos, hit, hit_return,
         {
           if (val->enabled)
             *hit_return = val;
-          else
-            no_return = 1;
+          else 
+            no_return = 1;
+          if (mw->menu.inside_entry != val) 
+            {
+              if (mw->menu.inside_entry)
+                XtCallCallbackList ((Widget)mw, mw->menu.leave,
+                                    (XtPointer) mw->menu.inside_entry);
+              mw->menu.inside_entry = val;
+              XtCallCallbackList ((Widget)mw, mw->menu.enter,
+                                  (XtPointer) mw->menu.inside_entry);
+            }
         }
 
       if (horizontal_p)
@@ -1452,7 +1465,7 @@ motion_event_is_in_menu (mw, ev, level, relative_pos)
   relative_pos->x = ev->x_root - x;
   relative_pos->y = ev->y_root - y;
   return (x - shadow < ev->x_root && ev->x_root < x + ws->width
-          && y - shadow < ev->y_root && ev->y_root < y + ws->height);
+          && y - shadow < ev->y_root && ev->y_root < y + ws->height);
 }
 
 static Boolean
@@ -1465,6 +1478,7 @@ map_event_to_widget_value (mw, ev, val, level)
   int           i;
   XPoint        relative_pos;
   window_state* ws;
+  int inside = 0;
 
   *val = NULL;
 
@@ -1474,6 +1488,7 @@ map_event_to_widget_value (mw, ev, val, level)
       ws = &mw->menu.windows [i];
       if (ws && motion_event_is_in_menu (mw, ev, i, &relative_pos))
         {
+          inside = 1;
           display_menu (mw, i, True, NULL, &relative_pos, val, NULL, NULL);
 
           if (*val)
@@ -1483,6 +1498,15 @@ map_event_to_widget_value (mw, ev, val, level)
             }
         }
     }
+
+  if (!inside) 
+    {
+      if (mw->menu.inside_entry != NULL) 
+        XtCallCallbackList ((Widget)mw, mw->menu.leave,
+                            (XtPointer) mw->menu.inside_entry);
+      mw->menu.inside_entry = NULL;
+    }
+
   return False;
 }
 
@@ -2416,6 +2440,7 @@ pop_up_menu (mw, event)
 
   next_release_must_exit = 0;
 
+  mw->menu.inside_entry = NULL;
   XtCallCallbackList ((Widget)mw, mw->menu.open, NULL);
 
   if (XtIsShell (XtParent ((Widget)mw)))
diff --git a/lwlib/xlwmenu.h b/lwlib/xlwmenu.h
index fa5dc887330..9b7a6b099db 100644
--- a/lwlib/xlwmenu.h
+++ b/lwlib/xlwmenu.h
@@ -44,6 +44,8 @@ Boston, MA 02110-1301, USA.  */
 #define XtNopen "open"
 #define XtNselect "select"
 #define XtNhighlightCallback "highlightCallback"
+#define XtNenterCallback "enterCallback"
+#define XtNleaveCallback "leaveCallback"
 #define XtNmenuBorderWidth "menuBorderWidth"
 #define XtNhorizontal "horizontal"
 #define XtCHorizontal "Horizontal"
diff --git a/lwlib/xlwmenuP.h b/lwlib/xlwmenuP.h
index ce170d7bfe4..b90bc3da827 100644
--- a/lwlib/xlwmenuP.h
+++ b/lwlib/xlwmenuP.h
@@ -64,6 +64,7 @@ typedef struct _XlwMenu_part
   Cursor        cursor_shape;
   XtCallbackList        open;
   XtCallbackList        select, highlight;
+  XtCallbackList        enter, leave;
   widget_value* contents;
   int           horizontal;
 
@@ -76,6 +77,7 @@ typedef struct _XlwMenu_part
   int                   old_depth;
   widget_value**        old_stack;
   int                   old_stack_length;
+  widget_value*         inside_entry;
 
   /* New state after the user moved */
   int                   new_depth;