Implement resync after update monitor reconnect

src/conversation-list/conversation-list-model.vala

@@ -15,8 +15,23 @@ public class ConversationListModel : Object, ListModel
             return (int)(b.date - a.date);
         });
 
-        Repository.get_instance().conversations_updated.connect(load_conversations);
+        weak ConversationListModel self = this;
-        Repository.get_instance().messages_updated.connect(load_conversations);
+        Repository.get_instance().conversations_updated.connect(() => {
+            self.load_conversations();
+        });
+
+        Repository.get_instance().messages_updated.connect((conversation_guid) => {
+            self.load_conversations();
+        });
+
+        Repository.get_instance().reconnected.connect(() => {
+            // Trigger a sync-list to get the latest conversations
+            try {
+                Repository.get_instance().sync_conversation_list();
+            } catch (GLib.Error e) {
+                warning("Failed to sync conversation list: %s", e.message);
+            }
+        });
     }
 
     public Conversation? get_conversation(string guid) {

src/conversation-list/conversation-list-view.vala

@@ -44,7 +44,7 @@ public class ConversationListView : Adw.Bin
         var app_menu = new Menu ();
 
         var section = new Menu ();
-        section.append ("Refresh", "list.refresh");
+        section.append ("Manual Sync", "list.refresh");
         section.append ("Settings...", "win.settings");
         app_menu.append_section (null, section);
 
@@ -54,8 +54,10 @@ public class ConversationListView : Adw.Bin
 
         var refresh_action = new SimpleAction("refresh", null);
         refresh_action.activate.connect (() => {
-            if (conversation_model != null) {
+            try {
-                conversation_model.load_conversations ();
+                Repository.get_instance().sync_conversation_list();
+            } catch (GLib.Error e) {
+                warning("Failed to sync conversation list: %s", e.message);
             }
         });
 

src/service/interface/dbusservice.vala

@@ -53,6 +53,9 @@ namespace DBusService {
 		[DBus (name = "MessagesUpdated")]
 		public signal void messages_updated(string conversation_id);
 
+		[DBus (name = "UpdateStreamReconnected")]
+		public signal void update_stream_reconnected();
+
 		[DBus (name = "GetAttachmentInfo")]
 		public abstract RepositoryAttachmentInfoStruct get_attachment_info(string attachment_id) throws DBusError, IOError;
 

src/service/interface/xml/net.buzzert.kordophonecd.Server.xml

@@ -103,6 +103,11 @@
                         value="Emitted when the list of messages is updated."/>
         </signal>
 
+        <signal name="UpdateStreamReconnected">
+            <annotation name="org.freedesktop.DBus.DocString"
+                        value="Emitted when the update stream is reconnected after a timeout or configuration change."/>
+        </signal>
+
         <!-- Attachments -->
 
         <method name="GetAttachmentInfo">

src/service/repository.vala

@@ -6,6 +6,7 @@ public class Repository : DBusServiceProxy {
     public signal void messages_updated(string conversation_guid);
     public signal void attachment_downloaded(string attachment_guid);
     public signal void attachment_uploaded(string upload_guid, string attachment_guid);
+    public signal void reconnected();
 
     public static Repository get_instance() {
         if (instance == null) {
@@ -46,12 +47,25 @@ public class Repository : DBusServiceProxy {
                 attachment_uploaded(upload_guid, attachment_guid);
             });
 
+            this.dbus_repository.update_stream_reconnected.connect(() => {
+                reconnected();
+            });
+
             conversations_updated();
+            reconnected();
         } catch (GLib.Error e) {
             warning("Failed to connect to repository: %s", e.message);
         }
     }
 
+    public void sync_conversation_list() throws DBusServiceProxyError, GLib.Error {
+        if (dbus_repository == null) {
+            throw new DBusServiceProxyError.NOT_CONNECTED("Repository not connected");
+        }
+
+        dbus_repository.sync_conversation_list();
+    }
+        
     public Conversation[] get_conversations(int limit = 200) throws DBusServiceProxyError, GLib.Error {
         if (dbus_repository == null) {
             throw new DBusServiceProxyError.NOT_CONNECTED("Repository not connected");

src/transcript/message-list-model.vala

@@ -34,7 +34,15 @@ public class MessageListModel : Object, ListModel
 
     public void watch_updates() {
         if (this.handler_id == 0) {
-            this.handler_id = Repository.get_instance().messages_updated.connect(got_messages_updated);
+            weak MessageListModel self = this;
+            this.handler_id = Repository.get_instance().messages_updated.connect((conversation_guid) => {
+                self.got_messages_updated(conversation_guid);
+            });
+
+            this.handler_id = Repository.get_instance().reconnected.connect(() => {
+                // On reconnect, reload the messages that we're looking at now. 
+                self.load_messages();
+            });
         }
     }