[evolution] I#430 - The first user's Search Folder not auto-shown in the folder tree

[Milan Crha <mcrha src gnome org>]

commit b965fe607614148c47f48521a36012163b7010fd
Author: Milan Crha <mcrha redhat com>
Date:   Fri May 3 10:33:19 2019 +0200

    I#430 - The first user's Search Folder not auto-shown in the folder tree
    
    Closes https://gitlab.gnome.org/GNOME/evolution/issues/430

 src/libemail-engine/mail-vfolder.c |  6 +-----
 src/mail/em-folder-tree-model.c    | 25 ++++++++++++++++++++++++-
 src/mail/em-folder-tree-model.h    |  3 +++
 src/mail/em-folder-tree.c          |  3 +++
 4 files changed, 31 insertions(+), 6 deletions(-)
---
diff --git a/src/libemail-engine/mail-vfolder.c b/src/libemail-engine/mail-vfolder.c
index 843d145264..9d7acdd17f 100644
--- a/src/libemail-engine/mail-vfolder.c
+++ b/src/libemail-engine/mail-vfolder.c
@@ -1003,7 +1003,7 @@ store_folder_deleted_cb (CamelStore *store,
        /* Warning not thread safe, but might be enough */
        G_LOCK (vfolder);
 
-       /* delete it from our list */
+       /* delete it from our list; can be NULL when already removed in the Search Folders edit dialog */
        rule = e_rule_context_find_rule ((ERuleContext *) context, info->full_name, NULL);
        if (rule) {
                CamelSession *session;
@@ -1032,10 +1032,6 @@ store_folder_deleted_cb (CamelStore *store,
                g_free (user);
 
                g_object_unref (session);
-       } else {
-               g_warning (
-                       "Cannot find rule for deleted vfolder '%s'",
-                       info->display_name);
        }
 
        G_UNLOCK (vfolder);
diff --git a/src/mail/em-folder-tree-model.c b/src/mail/em-folder-tree-model.c
index 8014c604e2..552ef50098 100644
--- a/src/mail/em-folder-tree-model.c
+++ b/src/mail/em-folder-tree-model.c
@@ -81,6 +81,8 @@ struct _StoreInfo {
        CamelStore *store;
        GtkTreeRowReference *row;
 
+       gboolean loaded;
+
        /* CamelFolderInfo::full_name -> GtkTreeRowReference */
        GHashTable *full_hash;
 
@@ -202,6 +204,7 @@ store_info_new (EMFolderTreeModel *model,
        si = g_slice_new0 (StoreInfo);
        si->ref_count = 1;
        si->store = g_object_ref (store);
+       si->loaded = FALSE;
 
        si->full_hash = g_hash_table_new_full (
                (GHashFunc) g_str_hash,
@@ -1425,6 +1428,9 @@ em_folder_tree_model_set_folder_info (EMFolderTreeModel *model,
                return;
        }
 
+       if (!si->loaded)
+               si->loaded = TRUE;
+
        tree_store = GTK_TREE_STORE (model);
 
        session = em_folder_tree_model_get_session (model);
@@ -1602,7 +1608,7 @@ folder_tree_model_folder_created_cb (CamelStore *store,
        if (CAMEL_IS_SUBSCRIBABLE (store))
                return;
 
-       if (g_hash_table_size (si->full_hash) > 0)
+       if (si->loaded)
                folder_tree_model_folder_subscribed_cb (store, fi, si);
 }
 
@@ -2007,6 +2013,23 @@ em_folder_tree_model_list_stores (EMFolderTreeModel *model)
        return list;
 }
 
+void
+em_folder_tree_model_mark_store_loaded (EMFolderTreeModel *model,
+                                       CamelStore *store)
+{
+       StoreInfo *si;
+
+       g_return_if_fail (EM_IS_FOLDER_TREE_MODEL (model));
+       g_return_if_fail (CAMEL_IS_STORE (store));
+
+       si = folder_tree_model_store_index_lookup (model, store);
+
+       if (si) {
+               si->loaded = TRUE;
+               store_info_unref (si);
+       }
+}
+
 gboolean
 em_folder_tree_model_is_type_inbox (EMFolderTreeModel *model,
                                     CamelStore *store,
diff --git a/src/mail/em-folder-tree-model.h b/src/mail/em-folder-tree-model.h
index 33c1da8a02..1402144e4c 100644
--- a/src/mail/em-folder-tree-model.h
+++ b/src/mail/em-folder-tree-model.h
@@ -139,6 +139,9 @@ void                em_folder_tree_model_remove_all_stores
                                        (EMFolderTreeModel *model);
 GList *                em_folder_tree_model_list_stores
                                        (EMFolderTreeModel *model);
+void           em_folder_tree_model_mark_store_loaded
+                                       (EMFolderTreeModel *model,
+                                        CamelStore *store);
 gboolean       em_folder_tree_model_is_type_inbox
                                        (EMFolderTreeModel *model,
                                         CamelStore *store,
diff --git a/src/mail/em-folder-tree.c b/src/mail/em-folder-tree.c
index 0ef8eb81f9..3fca8b16d7 100644
--- a/src/mail/em-folder-tree.c
+++ b/src/mail/em-folder-tree.c
@@ -328,6 +328,9 @@ folder_tree_get_folder_info_cb (CamelStore *store,
                }
        }
 
+       if (is_store)
+               em_folder_tree_model_mark_store_loaded (EM_FOLDER_TREE_MODEL (model), store);
+
        /* The folder being expanded has no children after all.  Remove
         * the "Loading..." placeholder row and collapse the parent. */
        if (child_info == NULL) {