fix(input): prevent double $digest when using jQuery trigger.

src/ng/directive/input.js

@@ -407,7 +407,7 @@ function textInputType(scope, element, attr, ctrl, $sniffer, $browser) {
     });
   }
 
-  var listener = function() {
+  var listener = function(ev) {
     if (composing) return;
     var value = element.val();
 
@@ -419,9 +419,17 @@ function textInputType(scope, element, attr, ctrl, $sniffer, $browser) {
     }
 
     if (ctrl.$viewValue !== value) {
-      scope.$apply(function() {
+      // If an event was performed natively, jQuery sets the isTrigger property.
+      // When triggering event manually, the field is not present. Manually
+      // triggered events are performed synchronously which causes the "$digest
+      // already in progress" error.
+      if (ev && ev.isTrigger) {
         ctrl.$setViewValue(value);
-      });
+      } else {
+        scope.$apply(function() {
+          ctrl.$setViewValue(value);
+        });
+      }
     }
   };
 

src/ngScenario/Scenario.js

@@ -239,7 +239,8 @@ function callerFile(offset) {
  * To work around this we instead use our own handler that fires a real event.
  */
 (function(fn){
-  var parentTrigger = fn.trigger;
+  // We need a handle to the original trigger function for input tests.
+  var parentTrigger = fn._originalTrigger = fn.trigger;
   fn.trigger = function(type) {
     if (/(click|change|keydown|blur|input|mousedown|mouseup)/.test(type)) {
       var processDefaults = [];

test/ng/directive/inputSpec.js

@@ -533,6 +533,23 @@ describe('input', function() {
       'event so that form auto complete works',function() {
       assertBrowserSupportsChangeEvent(true);
     });
+
+    if (!_jqLiteMode) {
+      it('should not cause the double $digest when triggering an event using jQuery', function() {
+        $sniffer.hasEvent = function(eventName) {
+          return eventName !== 'input';
+        };
+
+        compileInput('<input type="text" ng-model="name" name="alias" ng-change="change()" />');
+
+        scope.field = 'fake field';
+        scope.$watch('field', function() {
+          // We need to use _originalTrigger since trigger is modified by Angular Scenario.
+          inputElm._originalTrigger('change');
+        });
+        scope.$apply();
+      });
+    }
   });
 
   describe('"paste" and "cut" events', function() {