change button to connect/disconnect

gui/griffon-app/controllers/com/muwire/gui/ChatServerController.groovy

@@ -15,6 +15,14 @@ class ChatServerController {
 
     @ControllerAction
     void disconnect() {
-        model.core.eventBus.publish(new UIDisconnectChatEvent(host : model.host))
+        switch(model.buttonText) {
+            case "Disconnect" :
+                model.buttonText = "Connect"
+                model.core.eventBus.publish(new UIDisconnectChatEvent(host : model.host))
+                break
+            case "Connect" :
+                 model.connect()
+                 break
+        }
     }
 }

gui/griffon-app/models/com/muwire/gui/ChatServerModel.groovy

@@ -24,6 +24,7 @@ class ChatServerModel {
     Core core
     
     @Observable boolean disconnectActionEnabled
+    @Observable String buttonText
     @Observable ChatConnectionAttemptStatus status
 
     volatile ChatLink link    
@@ -70,6 +71,9 @@ class ChatServerModel {
         }
 
         if (e.status == ChatConnectionAttemptStatus.SUCCESSFUL) {
+            runInsideUIAsync {
+                buttonText = "Disconnect"
+            }
             ChatLink link = e.connection
             if (link == null)
                 return

gui/griffon-app/views/com/muwire/gui/ChatServerView.groovy

@@ -31,7 +31,7 @@ class ChatServerView {
                 gridLayout(rows : 1, cols : 3)
                 panel {}
                 panel {
-                    button(text : "Disconnect", enabled : bind {model.disconnectActionEnabled}, disconnectAction)
+                    button(text : bind {model.buttonText}, enabled : bind {model.disconnectActionEnabled}, disconnectAction)
                 }
                 panel {
                     label(text : "Connection Status ")