[evolution] I#118 - Unsubscribing requires selecting the folder first

[Milan Crha <mcrha src gnome org>]

commit ea0ca88fb7e022347f8994a92327c5e7c4a7e5b8
Author: Milan Crha <mcrha redhat com>
Date:   Thu Sep 6 23:04:32 2018 +0200

    I#118 - Unsubscribing requires selecting the folder first
    
    Closes https://gitlab.gnome.org/GNOME/evolution/issues/118

 src/modules/mail/e-mail-shell-view-actions.c | 94 +++++++++++++++++++++-------
 1 file changed, 70 insertions(+), 24 deletions(-)
---
diff --git a/src/modules/mail/e-mail-shell-view-actions.c b/src/modules/mail/e-mail-shell-view-actions.c
index b9c43d6f87..0038f07b37 100644
--- a/src/modules/mail/e-mail-shell-view-actions.c
+++ b/src/modules/mail/e-mail-shell-view-actions.c
@@ -1030,32 +1030,81 @@ action_mail_folder_select_subthread_cb (GtkAction *action,
 
 static gboolean
 ask_can_unsubscribe_folder (GtkWindow *parent,
-                           EMailSession *session,
-                           CamelStore *store,
-                           const gchar *folder_name)
+                           CamelFolder *folder)
 {
-       CamelFolder *folder;
        gchar *full_display_name;
        gboolean res;
 
-       g_return_val_if_fail (E_IS_MAIL_SESSION (session), FALSE);
-       g_return_val_if_fail (CAMEL_IS_STORE (store), FALSE);
-       g_return_val_if_fail (folder_name != NULL, FALSE);
-
-       folder = mail_folder_cache_ref_folder (e_mail_session_get_folder_cache (session), store, folder_name);
        g_return_val_if_fail (CAMEL_IS_FOLDER (folder), FALSE);
 
        full_display_name = e_mail_folder_to_full_display_name (folder, NULL);
 
        res = GTK_RESPONSE_YES == e_alert_run_dialog_for_args (parent,
-               "mail:ask-unsubscribe-folder", full_display_name ? full_display_name : folder_name, NULL);
+               "mail:ask-unsubscribe-folder", full_display_name ? full_display_name : 
camel_folder_get_full_name (folder), NULL);
 
-       g_clear_object (&folder);
        g_free (full_display_name);
 
        return res;
 }
 
+typedef struct _GetFolderData {
+       EMailShellView *mail_shell_view;
+       EActivity *activity;
+       CamelStore *store;
+       gchar *folder_name;
+} GetFolderData;
+
+static void
+get_folder_data_free (GetFolderData *gfd)
+{
+       if (gfd) {
+               g_clear_object (&gfd->mail_shell_view);
+               g_clear_object (&gfd->activity);
+               g_clear_object (&gfd->store);
+               g_free (gfd->folder_name);
+               g_free (gfd);
+       }
+}
+
+static void
+mail_folder_unsubscribe_got_folder_cb (GObject *source_object,
+                                      GAsyncResult *result,
+                                      gpointer user_data)
+{
+       GetFolderData *gfd = user_data;
+       CamelFolder *folder;
+       GError *local_error = NULL;
+
+       g_return_if_fail (gfd != NULL);
+
+       folder = camel_store_get_folder_finish (CAMEL_STORE (source_object), result, &local_error);
+
+       if (e_activity_handle_cancellation (gfd->activity, local_error)) {
+               g_error_free (local_error);
+
+       } else if (local_error != NULL) {
+               e_alert_submit (
+                       e_activity_get_alert_sink (gfd->activity), "mail:folder-open",
+                       local_error->message, NULL);
+               g_error_free (local_error);
+
+       } else {
+               EShellWindow *shell_window;
+               EMailView *mail_view;
+
+               e_activity_set_state (gfd->activity, E_ACTIVITY_COMPLETED);
+
+               shell_window = e_shell_view_get_shell_window (E_SHELL_VIEW (gfd->mail_shell_view));
+               mail_view = e_mail_shell_content_get_mail_view 
(gfd->mail_shell_view->priv->mail_shell_content);
+
+               if (ask_can_unsubscribe_folder (GTK_WINDOW (shell_window), folder))
+                       e_mail_reader_unsubscribe_folder_name (E_MAIL_READER (mail_view), gfd->store, 
gfd->folder_name);
+       }
+
+       get_folder_data_free (gfd);
+       g_clear_object (&folder);
+}
+
 static void
 action_mail_folder_unsubscribe_cb (GtkAction *action,
                                    EMailShellView *mail_shell_view)
@@ -1064,10 +1113,9 @@ action_mail_folder_unsubscribe_cb (GtkAction *action,
        EMailShellSidebar *mail_shell_sidebar;
        EMailView *mail_view;
        EMFolderTree *folder_tree;
-       EShellWindow *shell_window;
-       EMailSession *session;
        CamelStore *selected_store = NULL;
        gchar *selected_folder_name = NULL;
+       GetFolderData *gfd;
 
        mail_shell_content = mail_shell_view->priv->mail_shell_content;
        mail_view = e_mail_shell_content_get_mail_view (mail_shell_content);
@@ -1075,21 +1123,19 @@ action_mail_folder_unsubscribe_cb (GtkAction *action,
        mail_shell_sidebar = mail_shell_view->priv->mail_shell_sidebar;
        folder_tree = e_mail_shell_sidebar_get_folder_tree (mail_shell_sidebar);
 
-       em_folder_tree_get_selected (
-               folder_tree, &selected_store, &selected_folder_name);
+       em_folder_tree_get_selected (folder_tree, &selected_store, &selected_folder_name);
        g_return_if_fail (CAMEL_IS_STORE (selected_store));
        g_return_if_fail (selected_folder_name != NULL);
 
-       shell_window = e_shell_view_get_shell_window (E_SHELL_VIEW (mail_shell_view));
-       session = em_folder_tree_get_session (folder_tree);
-
-       if (ask_can_unsubscribe_folder (GTK_WINDOW (shell_window), session, selected_store, 
selected_folder_name))
-               e_mail_reader_unsubscribe_folder_name (
-                       E_MAIL_READER (mail_view),
-                       selected_store, selected_folder_name);
+       gfd = g_new0 (GetFolderData, 1);
+       gfd->mail_shell_view = g_object_ref (mail_shell_view);
+       gfd->activity = e_mail_reader_new_activity (E_MAIL_READER (mail_view));
+       gfd->store = selected_store;
+       gfd->folder_name = selected_folder_name;
 
-       g_object_unref (selected_store);
-       g_free (selected_folder_name);
+       camel_store_get_folder (gfd->store, gfd->folder_name, 0, G_PRIORITY_DEFAULT,
+               e_activity_get_cancellable (gfd->activity),
+               mail_folder_unsubscribe_got_folder_cb, gfd);
 }
 
 static void