gracefully handle grabs failing when doing interactive actions

[chaz/openbox] / openbox / menuframe.c

diff --git a/openbox/menuframe.c b/openbox/menuframe.c
index 95168d4e7ea908af1d3f947c3ded8044d4719191..fcdb47f5fcac17310a0ca6251ae65362c696c026 100644 (file)
--- a/openbox/menuframe.c
+++ b/openbox/menuframe.c
@@ -584,12 +584,22 @@ static void menu_frame_update(ObMenuFrame *self)
     menu_frame_render(self);
 }
 
-void menu_frame_show(ObMenuFrame *self, ObMenuFrame *parent)
+gboolean menu_frame_show(ObMenuFrame *self, ObMenuFrame *parent)
 {
     GList *it;
 
     if (g_list_find(menu_frame_visible, self))
-        return;
+        return TRUE;
+
+    if (menu_frame_visible == NULL) {
+        /* no menus shown yet */
+        if (!grab_pointer(TRUE, OB_CURSOR_NONE))
+            return FALSE;
+        if (!grab_keyboard(TRUE)) {
+            grab_pointer(FALSE, OB_CURSOR_NONE);
+            return FALSE;
+        }
+    }
 
     if (parent) {
         if (parent->child)
@@ -598,12 +608,6 @@ void menu_frame_show(ObMenuFrame *self, ObMenuFrame *parent)
     }
     self->parent = parent;
 
-    if (menu_frame_visible == NULL) {
-        /* no menus shown yet */
-        grab_pointer(TRUE, OB_CURSOR_NONE);
-        grab_keyboard(TRUE);
-    }
-
     /* determine if the underlying menu is already visible */
     for (it = menu_frame_visible; it; it = g_list_next(it)) {
         ObMenuFrame *f = it->data;
@@ -622,6 +626,8 @@ void menu_frame_show(ObMenuFrame *self, ObMenuFrame *parent)
     menu_frame_move_on_screen(self);
 
     XMapWindow(ob_display, self->window);
+
+    return TRUE;
 }
 
 void menu_frame_hide(ObMenuFrame *self)