1 files changed, 20 insertions, 0 deletions
diff --git a/src/com/vaadin/terminal/AbstractJavascriptExtension.java b/src/com/vaadin/terminal/AbstractJavascriptExtension.java
new file mode 100644
index 0000000000..e741e2af1e
--- /dev/null
+++ b/src/com/vaadin/terminal/AbstractJavascriptExtension.java
@@ -0,0 +1,20 @@
+/* 
+@VaadinApache2LicenseForJavaFiles@
+ */
+
+package com.vaadin.terminal;
+
+import com.vaadin.ui.JavascriptCallback;
+
+public class AbstractJavascriptExtension extends AbstractExtension {
+    private JavascriptRpcHelper rpcHelper = new JavascriptRpcHelper(this);
+
+    protected void registerCallback(String functionName,
+            JavascriptCallback javascriptCallback) {
+        rpcHelper.registerCallback(functionName, javascriptCallback);
+    }
+
+    protected void invokeCallback(String name, Object... arguments) {
+        rpcHelper.invokeCallback(name, arguments);
+    }
+}