[evolution] Rewrite em_folder_tree_model_lookup_uri() to not use uri_index.

[Matthew Barnes <mbarnes src gnome org>]

commit 842f25deadc0d45ace850e6fb05b61dc228c47a3
Author: Matthew Barnes <mbarnes redhat com>
Date:   Sun Apr 8 11:27:57 2012 -0400

    Rewrite em_folder_tree_model_lookup_uri() to not use uri_index.
    
    Instead we parse the 'folder_uri' string into CamelStore and folder name
    components using e_mail_folder_uri_parse().
    
    Then we query the internal 'store_index' table with our CamelStore for
    an EMFolderTreeModelStoreInfo struct.  Then we query the info struct's
    'full_hash' table with our folder name for the GtkTreeRowReference.
    
    It's a little more complicated, but it allows us to drop the internal
    'uri_index' table so it's a net simplification for EMFolderTreeModel.

 mail/em-folder-tree-model.c |   38 +++++++++++++++++++++++++++++++++++---
 1 files changed, 35 insertions(+), 3 deletions(-)
---
diff --git a/mail/em-folder-tree-model.c b/mail/em-folder-tree-model.c
index 623fd55..cd79927 100644
--- a/mail/em-folder-tree-model.c
+++ b/mail/em-folder-tree-model.c
@@ -1268,14 +1268,46 @@ GtkTreeRowReference *
 em_folder_tree_model_lookup_uri (EMFolderTreeModel *model,
                                  const gchar *folder_uri)
 {
-	GtkTreeRowReference *reference;
+	GtkTreeRowReference *reference = NULL;
+	EMFolderTreeModelStoreInfo *si;
+	EMailSession *session;
+	CamelStore *store = NULL;
+	gchar *folder_name = NULL;
+	GError *error = NULL;
 
 	g_return_val_if_fail (EM_IS_FOLDER_TREE_MODEL (model), NULL);
 	g_return_val_if_fail (folder_uri != NULL, NULL);
 
-	reference = g_hash_table_lookup (model->priv->uri_index, folder_uri);
+	session = em_folder_tree_model_get_session (model);
+	g_return_val_if_fail (E_IS_MAIL_SESSION (session), NULL);
+
+	e_mail_folder_uri_parse (
+		CAMEL_SESSION (session),
+		folder_uri, &store, &folder_name, &error);
+
+	if (error != NULL) {
+		g_warn_if_fail (store == NULL);
+		g_warn_if_fail (folder_name == NULL);
+		g_warning ("%s: %s", G_STRFUNC, error->message);
+		g_error_free (error);
+		return NULL;
+	}
+
+	g_return_val_if_fail (CAMEL_IS_STORE (store), NULL);
+	g_return_val_if_fail (folder_name != NULL, NULL);
+
+	si = g_hash_table_lookup (model->priv->store_index, store);
+
+	if (si != NULL)
+		reference = g_hash_table_lookup (si->full_hash, folder_name);
+
+	if (!gtk_tree_row_reference_valid (reference))
+		reference = NULL;
+
+	g_object_unref (store);
+	g_free (folder_name);
 
-	return gtk_tree_row_reference_valid (reference) ? reference : NULL;
+	return reference;
 }
 
 void