[evolution] Add e_mail_reader_refresh_folder().

[Matthew Barnes <mbarnes src gnome org>]

commit 84cfc5b80c4d3845b41358d68e33383c2c66a566
Author: Matthew Barnes <mbarnes redhat com>
Date:   Sun Jul 8 14:16:27 2012 -0400

    Add e_mail_reader_refresh_folder().
    
    To replace mail_refresh_folder().

 mail/e-mail-reader-utils.c |   57 ++++++++++++++++++++++++++++++++++++++++++++
 mail/e-mail-reader-utils.h |    2 +
 mail/mail.error.xml        |    5 ++++
 3 files changed, 64 insertions(+), 0 deletions(-)
---
diff --git a/mail/e-mail-reader-utils.c b/mail/e-mail-reader-utils.c
index 6d1e1bb..6d52be1 100644
--- a/mail/e-mail-reader-utils.c
+++ b/mail/e-mail-reader-utils.c
@@ -377,6 +377,63 @@ e_mail_reader_delete_folder_name (EMailReader *reader,
 		context);
 }
 
+/* Helper for e_mail_reader_refresh_folder() */
+static void
+mail_reader_refresh_folder_cb (GObject *source_object,
+                               GAsyncResult *result,
+                               gpointer user_data)
+{
+	CamelFolder *folder;
+	AsyncContext *context;
+	EAlertSink *alert_sink;
+	GError *error = NULL;
+
+	folder = CAMEL_FOLDER (source_object);
+	context = (AsyncContext *) user_data;
+
+	alert_sink = e_activity_get_alert_sink (context->activity);
+
+	if (e_activity_handle_cancellation (context->activity, error)) {
+		g_error_free (error);
+
+	} else if (error != NULL) {
+		e_alert_submit (
+			alert_sink, "mail:no-refresh-folder",
+			camel_folder_get_display_name (folder),
+			error->message, NULL);
+		g_error_free (error);
+
+	} else {
+		e_activity_set_state (
+			context->activity, E_ACTIVITY_COMPLETED);
+	}
+
+	async_context_free (context);
+}
+
+void
+e_mail_reader_refresh_folder (EMailReader *reader,
+                              CamelFolder *folder)
+{
+	EActivity *activity;
+	AsyncContext *context;
+	GCancellable *cancellable;
+
+	g_return_if_fail (E_IS_MAIL_READER (reader));
+	g_return_if_fail (CAMEL_IS_FOLDER (folder));
+
+	activity = e_mail_reader_new_activity (reader);
+	cancellable = e_activity_get_cancellable (activity);
+
+	context = g_slice_new0 (AsyncContext);
+	context->activity = activity;
+	context->reader = g_object_ref (reader);
+
+	camel_folder_refresh_info (
+		folder, G_PRIORITY_DEFAULT, cancellable,
+		mail_reader_refresh_folder_cb, context);
+}
+
 /* Helper for e_mail_reader_unsubscribe_folder_name() */
 static void
 mail_reader_unsubscribe_folder_name_cb (GObject *source_object,
diff --git a/mail/e-mail-reader-utils.h b/mail/e-mail-reader-utils.h
index c75d7d7..21006de 100644
--- a/mail/e-mail-reader-utils.h
+++ b/mail/e-mail-reader-utils.h
@@ -43,6 +43,8 @@ void		e_mail_reader_delete_folder_name
 						(EMailReader *reader,
 						 CamelStore *store,
 						 const gchar *folder_name);
+void		e_mail_reader_refresh_folder	(EMailReader *reader,
+						 CamelFolder *folder);
 void		e_mail_reader_unsubscribe_folder_name
 						(EMailReader *reader,
 						 CamelStore *store,
diff --git a/mail/mail.error.xml b/mail/mail.error.xml
index ed3856e..a41d4a4 100644
--- a/mail/mail.error.xml
+++ b/mail/mail.error.xml
@@ -195,6 +195,11 @@ Many email systems add an Apparently-To header to messages that only have BCC re
     <_secondary xml:space="preserve">System folders are required for Evolution to function correctly and cannot be renamed, moved, or deleted.</_secondary>
   </error>
 
+  <error id="no-refresh-folder" type="warning">
+    <_primary>Failed to refresh folder &quot;{0}&quot;.</_primary>
+    <_secondary>The reported error was &quot;{1}&quot;.</_secondary>
+  </error>
+
   <error id="no-rename-special-folder" type="error">
     <_primary>Cannot rename or move system folder "{0}".</_primary>
     <_secondary xml:space="preserve">System folders are required for Evolution to function correctly and cannot be renamed, moved, or deleted.</_secondary>