ssb: Connection result preliminary hookup to ui, and fix some fallout.

apps/ssb.json

@@ -1,5 +1,5 @@
 {
 	"type": "tildefriends-app",
 	"emoji": "🐌",
-	"previous": "&0ZjcRFTyAmJMm3qhqKy5Ffrue23G1CAUfc1i2WYZrzQ=.sha256"
+	"previous": "&+UZSxjoucLAl5r/nfRNu5KXx3K/PdutGnizL/Cn2eCU=.sha256"
 }

apps/ssb/tf-tab-connections.js

@@ -12,6 +12,7 @@ class TfTabConnectionsElement extends LitElement {
 			stored_connections: {type: Array},
 			users: {type: Object},
 			server_identity: {type: String},
+			connect_error: {type: String},
 		};
 	}
 
@@ -163,6 +164,15 @@ class TfTabConnectionsElement extends LitElement {
 		tfrpc.rpc.sync();
 	}
 
+	connect(address) {
+		let self = this;
+		tfrpc.rpc.connect(address).then(function() {
+			self.connect_error = 'connected!';
+		}).catch(function(error) {
+			self.connect_error = error;
+		});
+	}
+
 	render() {
 		let self = this;
 		return html`
@@ -178,10 +188,11 @@ class TfTabConnectionsElement extends LitElement {
 				<button
 					class="w3-button w3-theme-d1"
 					@click=${() =>
-						tfrpc.rpc.connect(self.renderRoot.getElementById('code').value)}
+						self.connect(self.renderRoot.getElementById('code').value)}
 				>
 					Connect
 				</button>
+				<div ?hidden=${this.connect_error === undefined}>${this.connect_error}</div>
 				<h2>Broadcasts</h2>
 				<ul class="w3-ul w3-border">
 					${this.broadcasts

src/ssb.c

@@ -1324,6 +1324,12 @@ static void _tf_ssb_connection_verify_identity(tf_ssb_connection_t* connection,
 	JS_SetPropertyStr(context, connection->object, "is_client", JS_TRUE);
 
 	connection->state = k_tf_ssb_state_verified;
+	if (connection->connect_callback)
+	{
+		connection->connect_callback(connection, NULL, connection->connect_callback_user_data);
+		connection->connect_callback = NULL;
+		connection->connect_callback_user_data = NULL;
+	}
 	if (connection->handshake_timer.data)
 	{
 		uv_timer_stop(&connection->handshake_timer);
@@ -2909,6 +2915,8 @@ void tf_ssb_connect(tf_ssb_t* ssb, const char* host, int port, const uint8_t* ke
 		.port = port,
 		.flags = connect_flags,
 		.req.data = connect,
+		.callback = callback,
+		.user_data = user_data,
 	};
 	char id[k_id_base64_len] = { 0 };
 	tf_ssb_id_bin_to_str(id, sizeof(id), key);