[evolution] EMFolderTreeModel: Listen for "folder-info-stale" signals.

[Matthew Barnes <mbarnes src gnome org>]

commit 1f181f1e7ba371961b76ef20091dac86d99968a6
Author: Matthew Barnes <mbarnes redhat com>
Date:   Sat Jun 22 10:05:21 2013 -0400

    EMFolderTreeModel: Listen for "folder-info-stale" signals.
    
    The signal indicates the folder tree for a particular store needs to be
    reconstructed.  We do this by calling em_folder_tree_model_add_store().

 mail/em-folder-tree-model.c |   19 +++++++++++++++++++
 mail/em-folder-tree-model.h |    1 +
 2 files changed, 20 insertions(+), 0 deletions(-)
---
diff --git a/mail/em-folder-tree-model.c b/mail/em-folder-tree-model.c
index f331313..eaa6b92 100644
--- a/mail/em-folder-tree-model.c
+++ b/mail/em-folder-tree-model.c
@@ -108,6 +108,11 @@ store_info_free (EMFolderTreeModelStoreInfo *si)
                        si->store,
                        si->folder_renamed_handler_id);
 
+       if (si->folder_info_stale_handler_id > 0)
+               g_signal_handler_disconnect (
+                       si->store,
+                       si->folder_info_stale_handler_id);
+
        if (si->folder_subscribed_handler_id > 0)
                g_signal_handler_disconnect (
                        si->store,
@@ -1066,6 +1071,15 @@ folder_tree_model_folder_renamed_cb (CamelStore *store,
        em_folder_tree_model_set_folder_info (model, &iter, si, info, TRUE);
 }
 
+static void
+folder_tree_model_folder_info_stale_cb (CamelStore *store,
+                                        EMFolderTreeModel *model)
+{
+       /* Re-add the store.  The EMFolderTreeModelStoreInfo will
+        * be discarded and the folder tree will be reconstructed. */
+       em_folder_tree_model_add_store (model, store);
+}
+
 void
 em_folder_tree_model_add_store (EMFolderTreeModel *model,
                                 CamelStore *store)
@@ -1168,6 +1182,11 @@ em_folder_tree_model_add_store (EMFolderTreeModel *model,
                G_CALLBACK (folder_tree_model_folder_renamed_cb), model);
        si->folder_renamed_handler_id = handler_id;
 
+       handler_id = g_signal_connect (
+               store, "folder-info-stale",
+               G_CALLBACK (folder_tree_model_folder_info_stale_cb), model);
+       si->folder_info_stale_handler_id = handler_id;
+
        if (CAMEL_IS_SUBSCRIBABLE (store)) {
                handler_id = g_signal_connect (
                        store, "folder-subscribed",
diff --git a/mail/em-folder-tree-model.h b/mail/em-folder-tree-model.h
index b3d7b5f..af8acd7 100644
--- a/mail/em-folder-tree-model.h
+++ b/mail/em-folder-tree-model.h
@@ -84,6 +84,7 @@ struct _EMFolderTreeModelStoreInfo {
        gulong folder_created_handler_id;
        gulong folder_deleted_handler_id;
        gulong folder_renamed_handler_id;
+       gulong folder_info_stale_handler_id;
        gulong folder_subscribed_handler_id;
        gulong folder_unsubscribed_handler_id;
 };