[vinagre/plugin] Make mDNS bookmarks work based on plugins.

[Jonh Wendell <jwendell src gnome org>]

commit 020e0b2ea5283d580bf6d1023961171dcbb8dd7d
Author: Jonh Wendell <jwendell gnome org>
Date:   Tue Jul 21 10:40:54 2009 -0300

    Make mDNS bookmarks work based on plugins.
    
    When a plugin is loaded, we check if this plugin has mDNS ability.
    If so, we load it. When a plugin is unloaded, we deactivate its mDNS
    entries.

 vinagre/vinagre-mdns.c |   49 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 47 insertions(+), 2 deletions(-)
---
diff --git a/vinagre/vinagre-mdns.c b/vinagre/vinagre-mdns.c
index 0aaf831..0673bec 100644
--- a/vinagre/vinagre-mdns.c
+++ b/vinagre/vinagre-mdns.c
@@ -187,6 +187,9 @@ vinagre_mdns_add_service (VinagrePluginInfo *info,
   BrowserEntry     *entry;
   VinagrePlugin    *plugin;
 
+  if (!vinagre_plugin_info_is_active (info))
+    return;
+
   service = vinagre_plugin_get_mdns_service (info->plugin);
   if (!service)
     return;
@@ -232,6 +235,27 @@ vinagre_mdns_add_service (VinagrePluginInfo *info,
 }
 
 static void
+vinagre_mdns_remove_entries_by_protocol (VinagreMdns *mdns, const gchar *protocol)
+{
+  GSList *l;
+  gboolean changed = FALSE;
+
+  for (l = mdns->priv->entries; l; l = l->next)
+    {
+      VinagreBookmarksEntry *entry = VINAGRE_BOOKMARKS_ENTRY (l->data);
+      if (strcmp (vinagre_connection_get_protocol (vinagre_bookmarks_entry_get_conn (entry)), protocol) == 0)
+	{
+	  mdns->priv->entries = g_slist_remove (mdns->priv->entries, entry);
+	  g_object_unref (entry);
+	  changed = TRUE;
+	}
+    }
+
+  if (changed)
+    g_signal_emit (mdns, signals[MDNS_CHANGED], 0);
+}
+
+static void
 plugin_activated_cb (VinagrePluginsEngine *engine,
 		     VinagrePluginInfo    *info,
 		     VinagreMdns          *mdns)
@@ -240,6 +264,23 @@ plugin_activated_cb (VinagrePluginsEngine *engine,
 }
 
 static void
+plugin_deactivated_cb (VinagrePluginsEngine *engine,
+		       VinagrePluginInfo    *info,
+		       VinagreMdns          *mdns)
+{
+  const gchar *service;
+
+  service = vinagre_plugin_get_mdns_service (info->plugin);
+  if (!service)
+    return;
+
+  vinagre_mdns_remove_entries_by_protocol (mdns,
+					   vinagre_plugin_get_protocol (info->plugin));
+  g_hash_table_remove (mdns->priv->browsers, (gconstpointer)service);
+
+}
+
+static void
 vinagre_mdns_init (VinagreMdns *mdns)
 {
   GError *error = NULL;
@@ -267,9 +308,13 @@ vinagre_mdns_init (VinagreMdns *mdns)
 		   (GFunc)vinagre_mdns_add_service,
 		   mdns);
 
+  g_signal_connect_after (engine,
+			  "activate-plugin",
+			  G_CALLBACK (plugin_activated_cb),
+			  mdns);
   g_signal_connect (engine,
-		    "activate-plugin",
-		    G_CALLBACK (plugin_activated_cb),
+		    "deactivate-plugin",
+		    G_CALLBACK (plugin_deactivated_cb),
 		    mdns);
 }