[evolution] ETaskShellSidebar: Use EClientCache to determine refresh support.

[Matthew Barnes <mbarnes src gnome org>]

commit 07ba01818c349ddee71cb8c4e3b45402f57f310e
Author: Matthew Barnes <mbarnes redhat com>
Date:   Sat Feb 16 15:08:37 2013 -0500

    ETaskShellSidebar: Use EClientCache to determine refresh support.
    
    In task_shell_sidebar_check_state(), determine whether the selected
    source supports refresh by way of e_client_cache_ref_cached_client()
    and e_client_check_refresh_supported().

 modules/calendar/e-task-shell-sidebar.c |   19 ++++++++++++-------
 1 files changed, 12 insertions(+), 7 deletions(-)
---
diff --git a/modules/calendar/e-task-shell-sidebar.c b/modules/calendar/e-task-shell-sidebar.c
index 533231a..a7008c6 100644
--- a/modules/calendar/e-task-shell-sidebar.c
+++ b/modules/calendar/e-task-shell-sidebar.c
@@ -601,7 +601,7 @@ task_shell_sidebar_check_state (EShellSidebar *shell_sidebar)
        if (source != NULL) {
                EClient *client;
                ESource *collection;
-               const gchar *uid;
+               EClientCache *client_cache;
 
                has_primary_source = TRUE;
                is_writable = e_source_get_writable (source);
@@ -616,12 +616,17 @@ task_shell_sidebar_check_state (EShellSidebar *shell_sidebar)
                        g_object_unref (collection);
                }
 
-               uid = e_source_get_uid (source);
-               client = g_hash_table_lookup (
-                       task_shell_sidebar->priv->client_table, uid);
-               refresh_supported =
-                       client != NULL &&
-                       e_client_check_refresh_supported (client);
+               client_cache = task_shell_sidebar_ref_client_cache (
+                       E_TASK_SHELL_SIDEBAR (shell_sidebar));
+               client = e_client_cache_ref_cached_client (
+                       client_cache, source, E_SOURCE_EXTENSION_TASK_LIST);
+               g_object_unref (client_cache);
+
+               if (client != NULL) {
+                       refresh_supported =
+                               e_client_check_refresh_supported (client);
+                       g_object_unref (client);
+               }
 
                g_object_unref (source);
        }