make submenus not require the menu to exist when they are created, not until they are shown.

crash fix in client_menu

openbox/menu.c

@@ -253,6 +253,8 @@ static void menu_entry_free(ObMenuEntry *self)
             }
             break;
         case OB_MENU_ENTRY_TYPE_SUBMENU:
+            g_free(self->data.submenu.name);
+            break;
         case OB_MENU_ENTRY_TYPE_SEPARATOR:
             break;
         }
@@ -296,14 +298,13 @@ void menu_add_normal(gchar *name, gint id, gchar *label, GSList *actions)
 
 void menu_add_submenu(gchar *name, gint id, gchar *submenu)
 {
-    ObMenu *self, *sub;
+    ObMenu *self;
     ObMenuEntry *e;
 
     if (!(self = menu_from_name(name))) return;
-    if (!(sub = menu_from_name(submenu))) return;
 
     e = menu_entry_new(self, OB_MENU_ENTRY_TYPE_SUBMENU, id);
-    e->data.submenu.submenu = sub;
+    e->data.submenu.name = g_strdup(submenu);
 
     self->entries = g_list_append(self->entries, e);
 }
@@ -359,3 +360,15 @@ ObMenuEntry* menu_find_entry_id(ObMenu *self, gint id)
     }
     return ret;
 }
+
+void menu_find_submenus(ObMenu *self)
+{
+    GList *it;
+
+    for (it = self->entries; it; it = g_list_next(it)) {
+        ObMenuEntry *e = it->data;
+
+        if (e->type == OB_MENU_ENTRY_TYPE_SUBMENU)
+            e->data.submenu.submenu = menu_from_name(e->data.submenu.name);
+    }
+}

openbox/menu.h

@@ -62,6 +62,7 @@ struct _ObNormalMenuEntry {
 };
 
 struct _ObSubmenuMenuEntry {
+    gchar *name;
     ObMenu *submenu;
 };
 
@@ -107,4 +108,6 @@ void menu_add_separator(gchar *name, gint id);
 
 ObMenuEntry* menu_find_entry_id(ObMenu *self, gint id);
 
+void menu_find_submenus(ObMenu *self);
+
 #endif

openbox/menuframe.c

@@ -170,6 +170,7 @@ static void menu_entry_frame_render(ObMenuEntryFrame *self)
 {
     RrAppearance *item_a, *text_a;
     gint th; /* temp */
+    ObMenu *sub;
 
     item_a = ((self->entry->type == OB_MENU_ENTRY_TYPE_NORMAL &&
                !self->entry->data.normal.enabled) ?
@@ -205,8 +206,8 @@ static void menu_entry_frame_render(ObMenuEntryFrame *self)
         text_a->texture[0].data.text.string = self->entry->data.normal.label;
         break;
     case OB_MENU_ENTRY_TYPE_SUBMENU:
-        text_a->texture[0].data.text.string =
-            self->entry->data.submenu.submenu->title;
+        sub = self->entry->data.submenu.submenu;
+        text_a->texture[0].data.text.string = sub ? sub->title : "";
         break;
     case OB_MENU_ENTRY_TYPE_SEPARATOR:
         break;
@@ -265,6 +266,7 @@ static void menu_frame_render(ObMenuFrame *self)
     gint tw, th; /* temps */
     GList *it;
     gboolean has_icon = FALSE, has_bullet = FALSE;
+    ObMenu *sub;
 
     XSetWindowBorderWidth(ob_display, self->window, ob_rr_theme->bwidth);
     XSetWindowBorder(ob_display, self->window,
@@ -315,8 +317,8 @@ static void menu_frame_render(ObMenuFrame *self)
             /* XXX has_icon = TRUE; */
             break;
         case OB_MENU_ENTRY_TYPE_SUBMENU:
-            text_a->texture[0].data.text.string =
-                e->entry->data.submenu.submenu->title;
+            sub = e->entry->data.submenu.submenu;
+            text_a->texture[0].data.text.string = sub ? sub->title : "";
             RrMinsize(text_a, &tw, &th);
 
             has_bullet = TRUE;
@@ -378,6 +380,8 @@ static void menu_frame_update(ObMenuFrame *self)
 {
     GList *mit, *fit;
 
+    menu_find_submenus(self->menu);
+
     self->selected = NULL;
 
     for (mit = self->menu->entries, fit = self->entries; mit && fit;
@@ -538,6 +542,8 @@ void menu_entry_frame_show_submenu(ObMenuEntryFrame *self)
 {
     ObMenuFrame *f;
 
+    if (!self->entry->data.submenu.submenu) return;
+
     f = menu_frame_new(self->entry->data.submenu.submenu,
                        self->frame->client);
     menu_frame_move(f,

plugins/menu/client_menu.c

@@ -83,6 +83,9 @@ static void layer_update(ObMenuFrame *frame, gpointer data)
             e->data.normal.enabled = !!frame->client;
     }
 
+    if (!frame->client)
+        return;
+
     e = menu_find_entry_id(menu, LAYER_TOP);
     e->data.normal.enabled = !frame->client->above;