Create ComboBoxServerRpc stub (#19229)

Create an empty client to server RPC implementation for ComboBox.

Change-Id: I348208fefb267765814383559e55866bc0933e4b

client/src/main/java/com/vaadin/client/ui/combobox/ComboBoxConnector.java

@@ -25,6 +25,7 @@ import com.vaadin.client.ApplicationConnection;
 import com.vaadin.client.Paintable;
 import com.vaadin.client.Profiler;
 import com.vaadin.client.UIDL;
+import com.vaadin.client.communication.RpcProxy;
 import com.vaadin.client.communication.StateChangeEvent;
 import com.vaadin.client.ui.AbstractFieldConnector;
 import com.vaadin.client.ui.SimpleManagedLayout;
@@ -32,6 +33,7 @@ import com.vaadin.client.ui.VFilterSelect;
 import com.vaadin.client.ui.VFilterSelect.FilterSelectSuggestion;
 import com.vaadin.shared.ui.Connect;
 import com.vaadin.shared.ui.combobox.ComboBoxConstants;
+import com.vaadin.shared.ui.combobox.ComboBoxServerRpc;
 import com.vaadin.shared.ui.combobox.ComboBoxState;
 import com.vaadin.shared.ui.combobox.FilteringMode;
 import com.vaadin.ui.ComboBox;
@@ -40,6 +42,9 @@ import com.vaadin.ui.ComboBox;
 public class ComboBoxConnector extends AbstractFieldConnector implements
         Paintable, SimpleManagedLayout {
 
+    protected ComboBoxServerRpc rpc = RpcProxy.create(ComboBoxServerRpc.class,
+            this);
+
     // oldSuggestionTextMatchTheOldSelection is used to detect when it's safe to
     // update textbox text by a changed item caption.
     private boolean oldSuggestionTextMatchTheOldSelection;

server/src/main/java/com/vaadin/ui/ComboBox.java

@@ -34,6 +34,7 @@ import com.vaadin.event.FieldEvents.FocusListener;
 import com.vaadin.server.PaintException;
 import com.vaadin.server.PaintTarget;
 import com.vaadin.server.Resource;
+import com.vaadin.shared.ui.combobox.ComboBoxServerRpc;
 import com.vaadin.shared.ui.combobox.ComboBoxState;
 import com.vaadin.shared.ui.combobox.FilteringMode;
 
@@ -74,6 +75,10 @@ public class ComboBox extends AbstractSelect implements
         public String getStyle(ComboBox source, Object itemId);
     }
 
+    private ComboBoxServerRpc rpc = new ComboBoxServerRpc() {
+
+    };
+
     /**
      * Holds value of property pageLength. 0 disables paging.
      */
@@ -130,28 +135,31 @@ public class ComboBox extends AbstractSelect implements
     private ItemStyleGenerator itemStyleGenerator = null;
 
     public ComboBox() {
-        initDefaults();
+        init();
     }
 
     public ComboBox(String caption, Collection<?> options) {
         super(caption, options);
-        initDefaults();
+        init();
     }
 
     public ComboBox(String caption, Container dataSource) {
         super(caption, dataSource);
-        initDefaults();
+        init();
     }
 
     public ComboBox(String caption) {
         super(caption);
-        initDefaults();
+        init();
     }
 
     /**
-     * Initialize the ComboBox with default settings
+     * Initialize the ComboBox with default settings and register client to
+     * server RPC implementation.
      */
-    private void initDefaults() {
+    private void init() {
+        registerRpc(rpc);
+
         setNewItemsAllowed(false);
         setImmediate(true);
     }

shared/src/main/java/com/vaadin/shared/ui/combobox/ComboBoxServerRpc.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.shared.ui.combobox;
+
+import com.vaadin.shared.communication.ServerRpc;
+
+/**
+ * Client to server RPC interface for ComboBox.
+ * 
+ * @since
+ */
+public interface ComboBoxServerRpc extends ServerRpc {
+
+}