fix(typeahead): set validity flag for non-editable inputs

Closes #806

src/typeahead/test/typeahead.spec.js

@@ -163,11 +163,28 @@ describe('typeahead tests', function () {
     });
 
     it('should support the editable property to limit model bindings to matches only', function () {
-      var element = prepareInputEl("<div><input ng-model='result' typeahead='item for item in source | filter:$viewValue' typeahead-editable='false'></div>");
+      var element = prepareInputEl("<div>ng-model='result' typeahead='item for item in source | filter:$viewValue' typeahead-editable='false'></div>");
       changeInputValueTo(element, 'not in matches');
       expect($scope.result).toEqual(undefined);
     });
 
+    it('should set validation erros for non-editable inputs', function () {
+
+      var element = prepareInputEl(
+        "<div><form name='form'>" +
+          "<input name='input' ng-model='result' typeahead='item for item in source | filter:$viewValue' typeahead-editable='false'>" +
+          "</form></div>");
+
+      changeInputValueTo(element, 'not in matches');
+      expect($scope.result).toEqual(undefined);
+      expect($scope.form.input.$error.editable).toBeTruthy();
+
+      changeInputValueTo(element, 'foo');
+      triggerKeyDown(element, 13);
+      expect($scope.result).toEqual('foo');
+      expect($scope.form.input.$error.editable).toBeFalsy();
+    });
+
     it('should bind loading indicator expression', inject(function ($timeout) {
 
       $scope.isLoading = false;

src/typeahead/typeahead.js

@@ -29,7 +29,8 @@ angular.module('ui.bootstrap.typeahead', ['ui.bootstrap.position'])
   };
 }])
 
-  .directive('typeahead', ['$compile', '$parse', '$q', '$timeout', '$document', '$position', 'typeaheadParser', function ($compile, $parse, $q, $timeout, $document, $position, typeaheadParser) {
+  .directive('typeahead', ['$compile', '$parse', '$q', '$timeout', '$document', '$position', 'typeaheadParser',
+    function ($compile, $parse, $q, $timeout, $document, $position, typeaheadParser) {
 
   var HOT_KEYS = [9, 13, 27, 38, 40];
 
@@ -158,7 +159,12 @@ angular.module('ui.bootstrap.typeahead', ['ui.bootstrap.position'])
           }
         }
 
-        return isEditable ? inputValue : undefined;
+        if (isEditable) {
+          return inputValue;
+        } else {
+          modelCtrl.$setValidity('editable', false);
+          return undefined;
+        }
       });
 
       modelCtrl.$formatters.push(function (modelValue) {
@@ -192,15 +198,17 @@ angular.module('ui.bootstrap.typeahead', ['ui.bootstrap.position'])
         locals[parserResult.itemName] = item = scope.matches[activeIdx].model;
         model = parserResult.modelMapper(originalScope, locals);
         $setModelValue(originalScope, model);
+        modelCtrl.$setValidity('editable', true);
 
         onSelectCallback(originalScope, {
           $item: item,
           $model: model,
           $label: parserResult.viewMapper(originalScope, locals)
         });
 
-        //return focus to the input element if a mach was selected via a mouse click event
         resetMatches();
+
+        //return focus to the input element if a mach was selected via a mouse click event
         element[0].focus();
       };