[gnome-shell] ShellAppMonitor: Fix case of not seeing apps being closed

[Colin Walters <walters src gnome org>]

commit 90979faedd70d569f16f56a546cf330dc116d636
Author: Colin Walters <walters verbum org>
Date:   Wed Aug 5 20:07:30 2009 -0400

    ShellAppMonitor: Fix case of not seeing apps being closed
    
    Remove the app from the window_to_app hash *before* emitting
    CHANGED, otherwise a signal handler could see stale data.

 src/shell-app-monitor.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/src/shell-app-monitor.c b/src/shell-app-monitor.c
index 5710704..f3bf705 100644
--- a/src/shell-app-monitor.c
+++ b/src/shell-app-monitor.c
@@ -532,10 +532,11 @@ shell_app_monitor_on_window_removed (MetaWorkspace   *workspace,
     self->watched_window = NULL;
 
   usage->window_count--;
+  /* Remove before emitting */
+  g_hash_table_remove (self->window_to_app, window);
+
   if (usage->window_count == 0)
     g_signal_emit (self, signals[CHANGED], 0);
-
-  g_hash_table_remove (self->window_to_app, window);
 }
 
 static void