[mutter] window: Fix corner case in set_demands_attention()

[Florian Müllner <fmuellner src gnome org>]

commit 4e14bb9df3ec34874c03d45fb7842234e0c82ab7
Author: Florian Müllner <fmuellner gnome org>
Date:   Sat Sep 27 04:12:52 2014 +0200

    window: Fix corner case in set_demands_attention()
    
    We only grant requests to set the demands-attention hint if the window
    is at least partially obscured; so for non-minimized windows on the
    active workspace, we check if any other window on the same workspace
    that is higher in the stack overlaps.
    However in the case of a sticky window, window->workspace is NULL, so
    we end up considering any non-sticky window on a different workspace.
    
    At this point we have already established that the window is showing
    on the active workspace, so use that to filter for windows that may
    overlap.

 src/core/window.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/core/window.c b/src/core/window.c
index 863027a..06fb210 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -6731,7 +6731,7 @@ meta_window_set_demands_attention (MetaWindow *window)
           other_window = stack->data;
           stack = stack->next;
 
-          if (meta_window_located_on_workspace (other_window, window->workspace))
+          if (meta_window_located_on_workspace (other_window, workspace))
             {
               meta_window_get_frame_rect (other_window, &other_rect);