From 6818a05259d2598c84812d4709a007fb58da59ef Mon Sep 17 00:00:00 2001
From: Jonathon Jongsma <jonathon@quotidian.org>
Date: Mon, 14 Dec 2009 10:46:12 -0600
Subject: Add MailFolderCache::folder-changed signal

Yes, this signal is kind of an ugly monster.  I'm not sure how to improve this
significantly.  But this commit removes the last EMFolderTreeModel and EShell
dependencies from MailFolderCache, which is a big step towards splitting off
the backend.

https://bugzilla.gnome.org/show_bug.cgi?id=604627
---
 modules/mail/e-mail-shell-backend.c | 55 +++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

(limited to 'modules')

diff --git a/modules/mail/e-mail-shell-backend.c b/modules/mail/e-mail-shell-backend.c
index be6bd1d199..47e00b7591 100644
--- a/modules/mail/e-mail-shell-backend.c
+++ b/modules/mail/e-mail-shell-backend.c
@@ -50,6 +50,7 @@
 #include "em-account-prefs.h"
 #include "em-composer-prefs.h"
 #include "em-composer-utils.h"
+#include "em-event.h"
 #include "em-folder-utils.h"
 #include "em-format-hook.h"
 #include "em-format-html-display.h"
@@ -781,6 +782,56 @@ folder_renamed_cb (MailFolderCache *cache, CamelStore *store, const gchar *oldur
 	mail_filter_rename_uri(store, olduri, newuri);
 }
 
+static void
+folder_changed_cb (MailFolderCache *cache,
+		   CamelStore *store,
+		   const gchar *folder_uri,
+		   const gchar *folder_fullname,
+		   int new_messages,
+		   const gchar *msg_uid,
+		   const gchar *msg_sender,
+		   const gchar *msg_subject,
+		   gpointer user_data)
+{
+	EShell *shell = (EShell*) user_data;
+	CamelFolder *folder = NULL;
+	gint flags = 0;
+	EMEvent *e = em_event_peek();
+	EMEventTargetFolder *t;
+	EMFolderTreeModel *model;
+
+	g_return_if_fail (shell);
+
+	if (!mail_folder_cache_get_folder_from_uri (cache, folder_uri, &folder)) {
+		if (!mail_folder_cache_get_folder_info_flags (cache, folder, &flags)) {
+			g_return_if_reached ();
+		}
+	}
+
+	t = em_event_target_new_folder(e, folder_uri, new_messages, msg_uid,
+				       msg_sender, msg_subject);
+
+	t->is_inbox = ((flags & CAMEL_FOLDER_TYPE_MASK) == CAMEL_FOLDER_TYPE_INBOX);
+
+	model = em_folder_tree_model_get_default ();
+	t->name = em_folder_tree_model_get_folder_name (model, store,
+							folder_fullname);
+
+	if (t->new > 0)
+		e_shell_event (
+			       shell, "mail-icon",
+			       (gpointer) "mail-unread");
+
+	/** @Event: folder.changed
+	 * @Title: Folder changed
+	 * @Target: EMEventTargetFolder
+	 *
+	 * folder.changed is emitted whenever a folder changes.  There is no detail on how the folder has changed.
+	 * UPDATE: We tell the number of new UIDs added rather than the new mails received
+	 */
+	e_event_emit((EEvent *)e, "folder.changed", (EEventTarget *)t);
+}
+
 static void
 mail_shell_backend_constructed (GObject *object)
 {
@@ -855,6 +906,10 @@ mail_shell_backend_constructed (GObject *object)
 		mail_folder_cache_get_default (), "folder-renamed",
 		G_CALLBACK (folder_renamed_cb), NULL);
 
+	g_signal_connect (
+		mail_folder_cache_get_default (), "folder-changed",
+		G_CALLBACK (folder_changed_cb), shell);
+
 	mail_config_init ();
 	mail_msg_init ();
 
-- 
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