diff --git a/srcjs/init_shiny.js b/srcjs/init_shiny.js
index 62eab91f1..8d5a7fc47 100644
--- a/srcjs/init_shiny.js
+++ b/srcjs/init_shiny.js
@@ -72,8 +72,9 @@ function initShiny() {
 
   var inputBatchSender = new InputBatchSender(shinyapp);
   var inputsNoResend = new InputNoResendDecorator(inputBatchSender);
-  var inputsRate = new InputRateDecorator(inputsNoResend);
-  var inputsDefer = new InputDeferDecorator(inputsNoResend);
+  var inputsEvent = new InputEventDecorator(inputsNoResend);
+  var inputsRate = new InputRateDecorator(inputsEvent);
+  var inputsDefer = new InputDeferDecorator(inputsEvent);
 
   // By default, use rate decorator
   var inputs = inputsRate;
diff --git a/srcjs/input_rate.js b/srcjs/input_rate.js
index 2814d5bda..a40ddb285 100644
--- a/srcjs/input_rate.js
+++ b/srcjs/input_rate.js
@@ -251,6 +251,25 @@ var InputDeferDecorator = function(target) {
   };
 }).call(InputDeferDecorator.prototype);
 
+var InputEventDecorator = function(target) {
+  this.target = target;
+};
+(function() {
+  this.setInput = function(name, value, immediate) {
+    var evt = jQuery.Event("shiny:inputchanged");
+    var name2 = name.split(':');
+    evt.name = name2[0];
+    evt.inputType = name2.length > 1 ? name2[1] : '';
+    evt.value = value;
+    $(document).trigger(evt);
+    if (!evt.isDefaultPrevented()) {
+      name = evt.name;
+      if (evt.inputType !== '') name += ':' + evt.inputType;
+      this.target.setInput(name, evt.value, immediate);
+    }
+  };
+}).call(InputEventDecorator.prototype);
+
 var InputRateDecorator = function(target) {
   this.target = target;
   this.inputRatePolicies = {};