docs(forms): Update API docs for forms

- API forms (ng:model + controller, form + controller)
- fix some broken links
- ng:change, ng:model-instant

4 files changed, 754 insertions, 550 deletions

diff --git a/src/loader.js b/src/loader.js
index 604beaef..315c5c42 100644
--- a/src/loader.js
+++ b/src/loader.js
@@ -171,7 +171,7 @@ function setupModuleLoader(window) {
            * @param {Function} directiveFactory Factory function for creating new instance of
            * directives.
            * @description
-           * See {@link angular.module.ng.$compileProvider#directive $compileProvider.directive()}.
+           * See {@link angular.module.ng.$compileProvider.directive $compileProvider.directive()}.
            */
           directive: invokeLater('$compileProvider', 'directive'),
 
diff --git a/src/scenario/dsl.js b/src/scenario/dsl.js
index f6cc8086..8a1bccb1 100644
--- a/src/scenario/dsl.js
+++ b/src/scenario/dsl.js
@@ -199,11 +199,11 @@ angular.scenario.dsl('binding', function() {
 angular.scenario.dsl('input', function() {
   var chain = {};
 
-  chain.enter = function(value) {
+  chain.enter = function(value, event) {
     return this.addFutureAction("input '" + this.name + "' enter '" + value + "'", function($window, $document, done) {
       var input = $document.elements('[ng\\:model="$1"]', this.name).filter(':input');
       input.val(value);
-      input.trigger('blur');
+      input.trigger(event || 'blur');
       done();
     });
   };
diff --git a/src/widget/form.js b/src/widget/form.js
index 23b07107..306581e9 100644
--- a/src/widget/form.js
+++ b/src/widget/form.js
@@ -1,5 +1,27 @@
 'use strict';
 
+
+/**
+ * @ngdoc object
+ * @name angular.module.ng.$compileProvider.directive.form.FormController
+ *
+ * @property {boolean} pristine True if user has not interacted with the form yet.
+ * @property {boolean} dirty True if user has already interacted with the form.
+ * @property {boolean} valid True if all of the containg widgets are valid.
+ * @property {boolean} invalid True if at least one containing widget is invalid.
+ *
+ * @property {Object} error Is an object hash, containing references to all invalid widgets, where
+ *
+ *  - keys are error ids (such as `REQUIRED`, `URL` or `EMAIL`),
+ *  - values are arrays of widgets that are invalid with given error.
+ *
+ * @description
+ * Form is a controller that keeps track of all registered widgets.
+ *
+ * Each {@link angular.module.ng.$compileProvider.directive.form form} directive creates an instance
+ * of `FormController`.
+ *
+ */
 FormController.$inject = ['$scope', 'name'];
 function FormController($scope, name) {
   var form = this,
@@ -73,6 +95,19 @@ function FormController($scope, name) {
   }
 }
 
+/**
+ * @ngdoc function
+ * @name angular.module.ng.$compileProvider.directive.form.FormController#registerWidget
+ * @methodOf angular.module.ng.$compileProvider.directive.form.FormController
+ * @function
+ *
+ * @param {Object} widget Widget to register (controller of a widget)
+ * @param {string=} alias Name alias of the widget.
+ *                        (If specified, widget will be accesible as a form property)
+ *
+ * @description
+ *
+ */
 FormController.prototype.registerWidget = function(widget, alias) {
   if (alias && !this.hasOwnProperty(alias)) {
     widget.widgetId = alias;
@@ -82,16 +117,15 @@ FormController.prototype.registerWidget = function(widget, alias) {
 
 
 /**
- * @ngdoc directive
+ * @ngdoc widget
  * @name angular.module.ng.$compileProvider.directive.form
  *
  * @scope
  * @description
- * Angular widget that creates a form scope using the
- * {@link angular.module.ng.$formFactory $formFactory} API. The resulting form scope instance is
- * attached to the DOM element using the jQuery `.data()` method under the `$form` key.
- * See {@link guide/dev_guide.forms forms} on detailed discussion of forms and widgets.
+ * Directive that instantiates
+ * {@link angular.module.ng.$compileProvider.directive.form.FormController Form} controller.
  *
+ * If `name` attribute is specified, the controller is published to the scope as well.
  *
  * # Alias: `ng:form`
  *
@@ -101,9 +135,16 @@ FormController.prototype.registerWidget = function(widget, alias) {
  * element nesting.
  *
  *
+ * # CSS classes
+ *  - `ng-valid` Is set if the form is valid.
+ *  - `ng-invalid` Is set if the form is invalid.
+ *  - `ng-pristine` Is set if the form is pristine.
+ *  - `ng-dirty` Is set if the form is dirty.
+ *
+ *
  * # Submitting a form and preventing default action
  *
- * Since the role of forms in client-side Angular applications is different than in old-school
+ * Since the role of forms in client-side Angular applications is different than in classical
  * roundtrip apps, it is desirable for the browser not to translate the form submission into a full
  * page reload that sends the data to the server. Instead some javascript logic should be triggered
  * to handle the form submission in application specific way.
@@ -128,7 +169,8 @@ FormController.prototype.registerWidget = function(widget, alias) {
  * hitting enter in any of the input fields will trigger the click handler on the *first* button or
  * input[type=submit] (`ng:click`) *and* a submit handler on the enclosing form (`ng:submit`)
  *
- * @param {string=} name Name of the form.
+ * @param {string=} name Name of the form. If specified, the form controller will be published into
+ *                       related scope, under this name.
  *
  * @example
     <doc:example>
diff --git a/src/widget/input.js b/src/widget/input.js
index 6c95327c..f3590e7d 100644
--- a/src/widget/input.js
+++ b/src/widget/input.js
@@ -1,568 +1,358 @@
 'use strict';
 
-
 var URL_REGEXP = /^(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?$/;
 var EMAIL_REGEXP = /^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$/;
 var NUMBER_REGEXP = /^\s*(\-|\+)?(\d+|(\d*(\.\d*)))\s*$/;
 
+var inputType = {
 
-/**
- * @ngdoc inputType
- * @name angular.inputType.text
- *
- * @description
- * Standard HTML text input with angular data binding.
- *
- * @param {string} ng:model Assignable angular expression to data-bind to.
- * @param {string=} name Property name of the form under which the widgets is published.
- * @param {string=} required Sets `REQUIRED` validation error key if the value is not entered.
- * @param {number=} ng:minlength Sets `MINLENGTH` validation error key if the value is shorter than
- *    minlength.
- * @param {number=} ng:maxlength Sets `MAXLENGTH` validation error key if the value is longer than
- *    maxlength.
- * @param {string=} ng:pattern Sets `PATTERN` validation error key if the value does not match the
- *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
- *    patterns defined as scope expressions.
- * @param {string=} ng:change Angular expression to be executed when input changes due to user
- *    interaction with the input element.
- *
- * @example
-    <doc:example>
-      <doc:source>
-       <script>
-         function Ctrl($scope) {
-           $scope.text = 'guest';
-           $scope.word = /^\w*$/;
-         }
-       </script>
-       <form name="myForm" ng:controller="Ctrl">
-         Single word: <input type="text" name="input" ng:model="text"
-                             ng:pattern="word" required>
-         <span class="error" ng:show="myForm.input.error.REQUIRED">
-           Required!</span>
-         <span class="error" ng:show="myForm.input.error.PATTERN">
-           Single word only!</span>
-
-         <tt>text = {{text}}</tt><br/>
-         <tt>myForm.input.valid = {{myForm.input.valid}}</tt><br/>
-         <tt>myForm.input.error = {{myForm.input.error}}</tt><br/>
-         <tt>myForm.valid = {{myForm.valid}}</tt><br/>
-         <tt>myForm.error.REQUIRED = {{!!myForm.error.REQUIRED}}</tt><br/>
-        </form>
-      </doc:source>
-      <doc:scenario>
-        it('should initialize to model', function() {
-          expect(binding('text')).toEqual('guest');
-          expect(binding('myForm.input.valid')).toEqual('true');
-        });
-
-        it('should be invalid if empty', function() {
-          input('text').enter('');
-          expect(binding('text')).toEqual('');
-          expect(binding('myForm.input.valid')).toEqual('false');
-        });
-
-        it('should be invalid if multi word', function() {
-          input('text').enter('hello world');
-          expect(binding('myForm.input.valid')).toEqual('false');
-        });
-      </doc:scenario>
-    </doc:example>
- */
-
-
-/**
- * @ngdoc inputType
- * @name angular.inputType.email
- *
- * @description
- * Text input with email validation. Sets the `EMAIL` validation error key if not a valid email
- * address.
- *
- * @param {string} ng:model Assignable angular expression to data-bind to.
- * @param {string=} name Property name of the form under which the widgets is published.
- * @param {string=} required Sets `REQUIRED` validation error key if the value is not entered.
- * @param {number=} ng:minlength Sets `MINLENGTH` validation error key if the value is shorter than
- *    minlength.
- * @param {number=} ng:maxlength Sets `MAXLENGTH` validation error key if the value is longer than
- *    maxlength.
- * @param {string=} ng:pattern Sets `PATTERN` validation error key if the value does not match the
- *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
- *    patterns defined as scope expressions.
- *
- * @example
-    <doc:example>
-      <doc:source>
-       <script>
-         function Ctrl($scope) {
-           $scope.text = 'me@example.com';
-         }
-       </script>
+  /**
+   * @ngdoc inputType
+   * @name angular.module.ng.$compileProvider.directive.input.text
+   *
+   * @description
+   * Standard HTML text input with angular data binding.
+   *
+   * @param {string} ng:model Assignable angular expression to data-bind to.
+   * @param {string=} name Property name of the form under which the widgets is published.
+   * @param {string=} required Sets `REQUIRED` validation error key if the value is not entered.
+   * @param {number=} ng:minlength Sets `MINLENGTH` validation error key if the value is shorter than
+   *    minlength.
+   * @param {number=} ng:maxlength Sets `MAXLENGTH` validation error key if the value is longer than
+   *    maxlength.
+   * @param {string=} ng:pattern Sets `PATTERN` validation error key if the value does not match the
+   *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
+   *    patterns defined as scope expressions.
+   * @param {string=} ng:change Angular expression to be executed when input changes due to user
+   *    interaction with the input element.
+   *
+   * @example
+      <doc:example>
+        <doc:source>
+         <script>
+           function Ctrl($scope) {
+             $scope.text = 'guest';
+             $scope.word = /^\w*$/;
+           }
+         </script>
          <form name="myForm" ng:controller="Ctrl">
-           Email: <input type="email" name="input" ng:model="text" required>
+           Single word: <input type="text" name="input" ng:model="text"
+                               ng:pattern="word" required>
            <span class="error" ng:show="myForm.input.error.REQUIRED">
              Required!</span>
-           <span class="error" ng:show="myForm.input.error.EMAIL">
-             Not valid email!</span>
+           <span class="error" ng:show="myForm.input.error.PATTERN">
+             Single word only!</span>
+
            <tt>text = {{text}}</tt><br/>
            <tt>myForm.input.valid = {{myForm.input.valid}}</tt><br/>
            <tt>myForm.input.error = {{myForm.input.error}}</tt><br/>
            <tt>myForm.valid = {{myForm.valid}}</tt><br/>
            <tt>myForm.error.REQUIRED = {{!!myForm.error.REQUIRED}}</tt><br/>
-           <tt>myForm.error.EMAIL = {{!!myForm.error.EMAIL}}</tt><br/>
-         </form>
-      </doc:source>
-      <doc:scenario>
-        it('should initialize to model', function() {
-          expect(binding('text')).toEqual('me@example.com');
-          expect(binding('myForm.input.valid')).toEqual('true');
-        });
-
-        it('should be invalid if empty', function() {
-          input('text').enter('');
-          expect(binding('text')).toEqual('');
-          expect(binding('myForm.input.valid')).toEqual('false');
-        });
-
-        it('should be invalid if not email', function() {
-          input('text').enter('xxx');
-          expect(binding('myForm.input.valid')).toEqual('false');
-        });
-      </doc:scenario>
-    </doc:example>
- */
-
-
-/**
- * @ngdoc inputType
- * @name angular.inputType.url
- *
- * @description
- * Text input with URL validation. Sets the `URL` validation error key if the content is not a
- * valid URL.
- *
- * @param {string} ng:model Assignable angular expression to data-bind to.
- * @param {string=} name Property name of the form under which the widgets is published.
- * @param {string=} required Sets `REQUIRED` validation error key if the value is not entered.
- * @param {number=} ng:minlength Sets `MINLENGTH` validation error key if the value is shorter than
- *    minlength.
- * @param {number=} ng:maxlength Sets `MAXLENGTH` validation error key if the value is longer than
- *    maxlength.
- * @param {string=} ng:pattern Sets `PATTERN` validation error key if the value does not match the
- *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
- *    patterns defined as scope expressions.
- * @param {string=} ng:change Angular expression to be executed when input changes due to user
- *    interaction with the input element.
- *
- * @example
-    <doc:example>
-      <doc:source>
-       <script>
-         function Ctrl($scope) {
-           $scope.text = 'http://google.com';
-         }
-       </script>
-       <form name="myForm" ng:controller="Ctrl">
-         URL: <input type="url" name="input" ng:model="text" required>
-         <span class="error" ng:show="myForm.input.error.REQUIRED">
-           Required!</span>
-         <span class="error" ng:show="myForm.input.error.url">
-           Not valid url!</span>
-         <tt>text = {{text}}</tt><br/>
-         <tt>myForm.input.valid = {{myForm.input.valid}}</tt><br/>
-         <tt>myForm.input.error = {{myForm.input.error}}</tt><br/>
-         <tt>myForm.valid = {{myForm.valid}}</tt><br/>
-         <tt>myForm.error.REQUIRED = {{!!myForm.error.REQUIRED}}</tt><br/>
-         <tt>myForm.error.url = {{!!myForm.error.url}}</tt><br/>
-        </form>
-      </doc:source>
-      <doc:scenario>
-        it('should initialize to model', function() {
-          expect(binding('text')).toEqual('http://google.com');
-          expect(binding('myForm.input.valid')).toEqual('true');
-        });
-
-        it('should be invalid if empty', function() {
-          input('text').enter('');
-          expect(binding('text')).toEqual('');
-          expect(binding('myForm.input.valid')).toEqual('false');
-        });
-
-        it('should be invalid if not url', function() {
-          input('text').enter('xxx');
-          expect(binding('myForm.input.valid')).toEqual('false');
-        });
-      </doc:scenario>
-    </doc:example>
- */
-
-
-/**
- * @ngdoc inputType
- * @name angular.inputType.list
- *
- * @description
- * Text input that converts between comma-seperated string into an array of strings.
- *
- * @param {string} ng:model Assignable angular expression to data-bind to.
- * @param {string=} name Property name of the form under which the widgets is published.
- * @param {string=} required Sets `REQUIRED` validation error key if the value is not entered.
- * @param {string=} ng:pattern Sets `PATTERN` validation error key if the value does not match the
- *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
- *    patterns defined as scope expressions.
- * @param {string=} ng:change Angular expression to be executed when input changes due to user
- *    interaction with the input element.
- *
- * @example
-    <doc:example>
-      <doc:source>
-       <script>
-         function Ctrl($scope) {
-           $scope.names = ['igor', 'misko', 'vojta'];
-         }
-       </script>
-       <form name="myForm" ng:controller="Ctrl">
-         List: <input type="list" name="input" ng:model="names" required>
-         <span class="error" ng:show="myForm.list.error.REQUIRED">
-           Required!</span>
-         <tt>names = {{names}}</tt><br/>
-         <tt>myForm.input.valid = {{myForm.input.valid}}</tt><br/>
-         <tt>myForm.input.error = {{myForm.input.error}}</tt><br/>
-         <tt>myForm.valid = {{myForm.valid}}</tt><br/>
-         <tt>myForm.error.REQUIRED = {{!!myForm.error.REQUIRED}}</tt><br/>
-        </form>
-      </doc:source>
-      <doc:scenario>
-        it('should initialize to model', function() {
-          expect(binding('names')).toEqual('["igor","misko","vojta"]');
-          expect(binding('myForm.input.valid')).toEqual('true');
-        });
-
-        it('should be invalid if empty', function() {
-          input('names').enter('');
-          expect(binding('names')).toEqual('');
-          expect(binding('myForm.input.valid')).toEqual('false');
-        });
-      </doc:scenario>
-    </doc:example>
- */
-var ngListDirective = function() {
-  return {
-    require: 'ngModel',
-    link: function(scope, element, attr, ctrl) {
-      var parse = function(viewValue) {
-        var list = [];
-
-        if (viewValue) {
-          forEach(viewValue.split(/\s*,\s*/), function(value) {
-            if (value) list.push(value);
+          </form>
+        </doc:source>
+        <doc:scenario>
+          it('should initialize to model', function() {
+            expect(binding('text')).toEqual('guest');
+            expect(binding('myForm.input.valid')).toEqual('true');
           });
-        }
-
-        return list;
-      };
 
-      ctrl.parsers.push(parse);
-      ctrl.formatters.push(function(value) {
-        if (isArray(value) && !equals(parse(ctrl.viewValue), value)) {
-          return value.join(', ');
-        }
-
-        return undefined;
-      });
-    }
-  };
-};
+          it('should be invalid if empty', function() {
+            input('text').enter('');
+            expect(binding('text')).toEqual('');
+            expect(binding('myForm.input.valid')).toEqual('false');
+          });
 
-/**
- * @ngdoc inputType
- * @name angular.inputType.number
- *
- * @description
- * Text input with number validation and transformation. Sets the `NUMBER` validation
- * error if not a valid number.
- *
- * @param {string} ng:model Assignable angular expression to data-bind to.
- * @param {string=} name Property name of the form under which the widgets is published.
- * @param {string=} min Sets the `MIN` validation error key if the value entered is less then `min`.
- * @param {string=} max Sets the `MAX` validation error key if the value entered is greater then `min`.
- * @param {string=} required Sets `REQUIRED` validation error key if the value is not entered.
- * @param {number=} ng:minlength Sets `MINLENGTH` validation error key if the value is shorter than
- *    minlength.
- * @param {number=} ng:maxlength Sets `MAXLENGTH` validation error key if the value is longer than
- *    maxlength.
- * @param {string=} ng:pattern Sets `PATTERN` validation error key if the value does not match the
- *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
- *    patterns defined as scope expressions.
- * @param {string=} ng:change Angular expression to be executed when input changes due to user
- *    interaction with the input element.
- *
- * @example
-    <doc:example>
-      <doc:source>
-       <script>
-         function Ctrl($scope) {
-           $scope.value = 12;
-         }
-       </script>
-       <form name="myForm" ng:controller="Ctrl">
-         Number: <input type="number" name="input" ng:model="value"
-                        min="0" max="99" required>
-         <span class="error" ng:show="myForm.list.error.REQUIRED">
-           Required!</span>
-         <span class="error" ng:show="myForm.list.error.NUMBER">
-           Not valid number!</span>
-         <tt>value = {{value}}</tt><br/>
-         <tt>myForm.input.valid = {{myForm.input.valid}}</tt><br/>
-         <tt>myForm.input.error = {{myForm.input.error}}</tt><br/>
-         <tt>myForm.valid = {{myForm.valid}}</tt><br/>
-         <tt>myForm.error.REQUIRED = {{!!myForm.error.REQUIRED}}</tt><br/>
-        </form>
-      </doc:source>
-      <doc:scenario>
-        it('should initialize to model', function() {
-         expect(binding('value')).toEqual('12');
-         expect(binding('myForm.input.valid')).toEqual('true');
-        });
+          it('should be invalid if multi word', function() {
+            input('text').enter('hello world');
+            expect(binding('myForm.input.valid')).toEqual('false');
+          });
+        </doc:scenario>
+      </doc:example>
+   */
+  'text': textInputType,
 
-        it('should be invalid if empty', function() {
-         input('value').enter('');
-         expect(binding('value')).toEqual('');
-         expect(binding('myForm.input.valid')).toEqual('false');
-        });
 
-        it('should be invalid if over max', function() {
-         input('value').enter('123');
-         expect(binding('value')).toEqual('12');
-         expect(binding('myForm.input.valid')).toEqual('false');
-        });
-      </doc:scenario>
-    </doc:example>
- */
+  /**
+   * @ngdoc inputType
+   * @name angular.module.ng.$compileProvider.directive.input.number
+   *
+   * @description
+   * Text input with number validation and transformation. Sets the `NUMBER` validation
+   * error if not a valid number.
+   *
+   * @param {string} ng:model Assignable angular expression to data-bind to.
+   * @param {string=} name Property name of the form under which the widgets is published.
+   * @param {string=} min Sets the `MIN` validation error key if the value entered is less then `min`.
+   * @param {string=} max Sets the `MAX` validation error key if the value entered is greater then `min`.
+   * @param {string=} required Sets `REQUIRED` validation error key if the value is not entered.
+   * @param {number=} ng:minlength Sets `MINLENGTH` validation error key if the value is shorter than
+   *    minlength.
+   * @param {number=} ng:maxlength Sets `MAXLENGTH` validation error key if the value is longer than
+   *    maxlength.
+   * @param {string=} ng:pattern Sets `PATTERN` validation error key if the value does not match the
+   *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
+   *    patterns defined as scope expressions.
+   * @param {string=} ng:change Angular expression to be executed when input changes due to user
+   *    interaction with the input element.
+   *
+   * @example
+      <doc:example>
+        <doc:source>
+         <script>
+           function Ctrl($scope) {
+             $scope.value = 12;
+           }
+         </script>
+         <form name="myForm" ng:controller="Ctrl">
+           Number: <input type="number" name="input" ng:model="value"
+                          min="0" max="99" required>
+           <span class="error" ng:show="myForm.list.error.REQUIRED">
+             Required!</span>
+           <span class="error" ng:show="myForm.list.error.NUMBER">
+             Not valid number!</span>
+           <tt>value = {{value}}</tt><br/>
+           <tt>myForm.input.valid = {{myForm.input.valid}}</tt><br/>
+           <tt>myForm.input.error = {{myForm.input.error}}</tt><br/>
+           <tt>myForm.valid = {{myForm.valid}}</tt><br/>
+           <tt>myForm.error.REQUIRED = {{!!myForm.error.REQUIRED}}</tt><br/>
+          </form>
+        </doc:source>
+        <doc:scenario>
+          it('should initialize to model', function() {
+           expect(binding('value')).toEqual('12');
+           expect(binding('myForm.input.valid')).toEqual('true');
+          });
 
+          it('should be invalid if empty', function() {
+           input('value').enter('');
+           expect(binding('value')).toEqual('');
+           expect(binding('myForm.input.valid')).toEqual('false');
+          });
 
-/**
- * @ngdoc inputType
- * @name angular.inputType.checkbox
- *
- * @description
- * HTML checkbox.
- *
- * @param {string} ng:model Assignable angular expression to data-bind to.
- * @param {string=} name Property name of the form under which the widgets is published.
- * @param {string=} ng:true-value The value to which the expression should be set when selected.
- * @param {string=} ng:false-value The value to which the expression should be set when not selected.
- * @param {string=} ng:change Angular expression to be executed when input changes due to user
- *    interaction with the input element.
- *
- * @example
-    <doc:example>
-      <doc:source>
-       <script>
-         function Ctrl($scope) {
-           $scope.value1 = true;
-           $scope.value2 = 'YES'
-         }
-       </script>
-       <form name="myForm" ng:controller="Ctrl">
-         Value1: <input type="checkbox" ng:model="value1"> <br/>
-         Value2: <input type="checkbox" ng:model="value2"
-                        ng:true-value="YES" ng:false-value="NO"> <br/>
-         <tt>value1 = {{value1}}</tt><br/>
-         <tt>value2 = {{value2}}</tt><br/>
-        </form>
-      </doc:source>
-      <doc:scenario>
-        it('should change state', function() {
-          expect(binding('value1')).toEqual('true');
-          expect(binding('value2')).toEqual('YES');
-
-          input('value1').check();
-          input('value2').check();
-          expect(binding('value1')).toEqual('false');
-          expect(binding('value2')).toEqual('NO');
-        });
-      </doc:scenario>
-    </doc:example>
- */
+          it('should be invalid if over max', function() {
+           input('value').enter('123');
+           expect(binding('value')).toEqual('12');
+           expect(binding('myForm.input.valid')).toEqual('false');
+          });
+        </doc:scenario>
+      </doc:example>
+   */
+  'number': numberInputType,
 
 
+  /**
+   * @ngdoc inputType
+   * @name angular.module.ng.$compileProvider.directive.input.url
+   *
+   * @description
+   * Text input with URL validation. Sets the `URL` validation error key if the content is not a
+   * valid URL.
+   *
+   * @param {string} ng:model Assignable angular expression to data-bind to.
+   * @param {string=} name Property name of the form under which the widgets is published.
+   * @param {string=} required Sets `REQUIRED` validation error key if the value is not entered.
+   * @param {number=} ng:minlength Sets `MINLENGTH` validation error key if the value is shorter than
+   *    minlength.
+   * @param {number=} ng:maxlength Sets `MAXLENGTH` validation error key if the value is longer than
+   *    maxlength.
+   * @param {string=} ng:pattern Sets `PATTERN` validation error key if the value does not match the
+   *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
+   *    patterns defined as scope expressions.
+   * @param {string=} ng:change Angular expression to be executed when input changes due to user
+   *    interaction with the input element.
+   *
+   * @example
+      <doc:example>
+        <doc:source>
+         <script>
+           function Ctrl($scope) {
+             $scope.text = 'http://google.com';
+           }
+         </script>
+         <form name="myForm" ng:controller="Ctrl">
+           URL: <input type="url" name="input" ng:model="text" required>
+           <span class="error" ng:show="myForm.input.error.REQUIRED">
+             Required!</span>
+           <span class="error" ng:show="myForm.input.error.url">
+             Not valid url!</span>
+           <tt>text = {{text}}</tt><br/>
+           <tt>myForm.input.valid = {{myForm.input.valid}}</tt><br/>
+           <tt>myForm.input.error = {{myForm.input.error}}</tt><br/>
+           <tt>myForm.valid = {{myForm.valid}}</tt><br/>
+           <tt>myForm.error.REQUIRED = {{!!myForm.error.REQUIRED}}</tt><br/>
+           <tt>myForm.error.url = {{!!myForm.error.url}}</tt><br/>
+          </form>
+        </doc:source>
+        <doc:scenario>
+          it('should initialize to model', function() {
+            expect(binding('text')).toEqual('http://google.com');
+            expect(binding('myForm.input.valid')).toEqual('true');
+          });
 
-/**
- * @ngdoc inputType
- * @name angular.inputType.radio
- *
- * @description
- * HTML radio button.
- *
- * @param {string} ng:model Assignable angular expression to data-bind to.
- * @param {string} value The value to which the expression should be set when selected.
- * @param {string=} name Property name of the form under which the widgets is published.
- * @param {string=} ng:change Angular expression to be executed when input changes due to user
- *    interaction with the input element.
- *
- * @example
-    <doc:example>
-      <doc:source>
-       <script>
-         function Ctrl($scope) {
-           $scope.color = 'blue';
-         }
-       </script>
-       <form name="myForm" ng:controller="Ctrl">
-         <input type="radio" ng:model="color" value="red">  Red <br/>
-         <input type="radio" ng:model="color" value="green"> Green <br/>
-         <input type="radio" ng:model="color" value="blue"> Blue <br/>
-         <tt>color = {{color}}</tt><br/>
-        </form>
-      </doc:source>
-      <doc:scenario>
-        it('should change state', function() {
-          expect(binding('color')).toEqual('blue');
+          it('should be invalid if empty', function() {
+            input('text').enter('');
+            expect(binding('text')).toEqual('');
+            expect(binding('myForm.input.valid')).toEqual('false');
+          });
 
-          input('color').select('red');
-          expect(binding('color')).toEqual('red');
-        });
-      </doc:scenario>
-    </doc:example>
- */
+          it('should be invalid if not url', function() {
+            input('text').enter('xxx');
+            expect(binding('myForm.input.valid')).toEqual('false');
+          });
+        </doc:scenario>
+      </doc:example>
+   */
+  'url': urlInputType,
 
 
-/**
- * @ngdoc widget
- * @name angular.module.ng.$compileProvider.directive.input
- *
- * @description
- * HTML input element widget with angular data-binding. Input widget follows HTML5 input types
- * and polyfills the HTML5 validation behavior for older browsers.
- *
- * The {@link angular.inputType custom angular.inputType}s provide a shorthand for declaring new
- * inputs. This is a sharthand for text-box based inputs, and there is no need to go through the
- * full {@link angular.module.ng.$formFactory $formFactory} widget lifecycle.
- *
- *
- * @param {string} type Widget types as defined by {@link angular.inputType}. If the
- *    type is in the format of `@ScopeType` then `ScopeType` is loaded from the
- *    current scope, allowing quick definition of type.
- * @param {string} ng:model Assignable angular expression to data-bind to.
- * @param {string=} name Property name of the form under which the widgets is published.
- * @param {string=} required Sets `REQUIRED` validation error key if the value is not entered.
- * @param {number=} ng:minlength Sets `MINLENGTH` validation error key if the value is shorter than
- *    minlength.
- * @param {number=} ng:maxlength Sets `MAXLENGTH` validation error key if the value is longer than
- *    maxlength.
- * @param {string=} ng:pattern Sets `PATTERN` validation error key if the value does not match the
- *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
- *    patterns defined as scope expressions.
- * @param {string=} ng:change Angular expression to be executed when input changes due to user
- *    interaction with the input element.
- *
- * @example
-    <doc:example>
-      <doc:source>
-       <script>
-         function Ctrl($scope) {
-           $scope.user = {name: 'guest', last: 'visitor'};
-         }
-       </script>
-       <div ng:controller="Ctrl">
-         <form name="myForm">
-           User name: <input type="text" name="userName" ng:model="user.name" required>
-           <span class="error" ng:show="myForm.userName.error.REQUIRED">
-             Required!</span><br>
-           Last name: <input type="text" name="lastName" ng:model="user.last"
-             ng:minlength="3" ng:maxlength="10">
-           <span class="error" ng:show="myForm.lastName.error.MINLENGTH">
-             Too short!</span>
-           <span class="error" ng:show="myForm.lastName.error.MAXLENGTH">
-             Too long!</span><br>
-         </form>
-         <hr>
-         <tt>user = {{user}}</tt><br/>
-         <tt>myForm.userName.valid = {{myForm.userName.valid}}</tt><br>
-         <tt>myForm.userName.error = {{myForm.userName.error}}</tt><br>
-         <tt>myForm.lastName.valid = {{myForm.lastName.valid}}</tt><br>
-         <tt>myForm.userName.error = {{myForm.lastName.error}}</tt><br>
-         <tt>myForm.valid = {{myForm.valid}}</tt><br>
-         <tt>myForm.error.REQUIRED = {{!!myForm.error.REQUIRED}}</tt><br>
-         <tt>myForm.error.MINLENGTH = {{!!myForm.error.MINLENGTH}}</tt><br>
-         <tt>myForm.error.MAXLENGTH = {{!!myForm.error.MAXLENGTH}}</tt><br>
-       </div>
-      </doc:source>
-      <doc:scenario>
-        it('should initialize to model', function() {
-          expect(binding('user')).toEqual('{"last":"visitor","name":"guest"}');
-          expect(binding('myForm.userName.valid')).toEqual('true');
-          expect(binding('myForm.valid')).toEqual('true');
-        });
+  /**
+   * @ngdoc inputType
+   * @name angular.module.ng.$compileProvider.directive.input.email
+   *
+   * @description
+   * Text input with email validation. Sets the `EMAIL` validation error key if not a valid email
+   * address.
+   *
+   * @param {string} ng:model Assignable angular expression to data-bind to.
+   * @param {string=} name Property name of the form under which the widgets is published.
+   * @param {string=} required Sets `REQUIRED` validation error key if the value is not entered.
+   * @param {number=} ng:minlength Sets `MINLENGTH` validation error key if the value is shorter than
+   *    minlength.
+   * @param {number=} ng:maxlength Sets `MAXLENGTH` validation error key if the value is longer than
+   *    maxlength.
+   * @param {string=} ng:pattern Sets `PATTERN` validation error key if the value does not match the
+   *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
+   *    patterns defined as scope expressions.
+   *
+   * @example
+      <doc:example>
+        <doc:source>
+         <script>
+           function Ctrl($scope) {
+             $scope.text = 'me@example.com';
+           }
+         </script>
+           <form name="myForm" ng:controller="Ctrl">
+             Email: <input type="email" name="input" ng:model="text" required>
+             <span class="error" ng:show="myForm.input.error.REQUIRED">
+               Required!</span>
+             <span class="error" ng:show="myForm.input.error.EMAIL">
+               Not valid email!</span>
+             <tt>text = {{text}}</tt><br/>
+             <tt>myForm.input.valid = {{myForm.input.valid}}</tt><br/>
+             <tt>myForm.input.error = {{myForm.input.error}}</tt><br/>
+             <tt>myForm.valid = {{myForm.valid}}</tt><br/>
+             <tt>myForm.error.REQUIRED = {{!!myForm.error.REQUIRED}}</tt><br/>
+             <tt>myForm.error.EMAIL = {{!!myForm.error.EMAIL}}</tt><br/>
+           </form>
+        </doc:source>
+        <doc:scenario>
+          it('should initialize to model', function() {
+            expect(binding('text')).toEqual('me@example.com');
+            expect(binding('myForm.input.valid')).toEqual('true');
+          });
 
-        it('should be invalid if empty when required', function() {
-          input('user.name').enter('');
-          expect(binding('user')).toEqual('{"last":"visitor","name":null}');
-          expect(binding('myForm.userName.valid')).toEqual('false');
-          expect(binding('myForm.valid')).toEqual('false');
-        });
+          it('should be invalid if empty', function() {
+            input('text').enter('');
+            expect(binding('text')).toEqual('');
+            expect(binding('myForm.input.valid')).toEqual('false');
+          });
 
-        it('should be valid if empty when min length is set', function() {
-          input('user.last').enter('');
-          expect(binding('user')).toEqual('{"last":"","name":"guest"}');
-          expect(binding('myForm.lastName.valid')).toEqual('true');
-          expect(binding('myForm.valid')).toEqual('true');
-        });
+          it('should be invalid if not email', function() {
+            input('text').enter('xxx');
+            expect(binding('myForm.input.valid')).toEqual('false');
+          });
+        </doc:scenario>
+      </doc:example>
+   */
+  'email': emailInputType,
 
-        it('should be invalid if less than required min length', function() {
-          input('user.last').enter('xx');
-          expect(binding('user')).toEqual('{"last":"visitor","name":"guest"}');
-          expect(binding('myForm.lastName.valid')).toEqual('false');
-          expect(binding('myForm.lastName.error')).toMatch(/MINLENGTH/);
-          expect(binding('myForm.valid')).toEqual('false');
-        });
 
-        it('should be valid if longer than max length', function() {
-          input('user.last').enter('some ridiculously long name');
-          expect(binding('user'))
-            .toEqual('{"last":"visitor","name":"guest"}');
-          expect(binding('myForm.lastName.valid')).toEqual('false');
-          expect(binding('myForm.lastName.error')).toMatch(/MAXLENGTH/);
-          expect(binding('myForm.valid')).toEqual('false');
-        });
-      </doc:scenario>
-    </doc:example>
- */
+  /**
+   * @ngdoc inputType
+   * @name angular.module.ng.$compileProvider.directive.input.radio
+   *
+   * @description
+   * HTML radio button.
+   *
+   * @param {string} ng:model Assignable angular expression to data-bind to.
+   * @param {string} value The value to which the expression should be set when selected.
+   * @param {string=} name Property name of the form under which the widgets is published.
+   * @param {string=} ng:change Angular expression to be executed when input changes due to user
+   *    interaction with the input element.
+   *
+   * @example
+      <doc:example>
+        <doc:source>
+         <script>
+           function Ctrl($scope) {
+             $scope.color = 'blue';
+           }
+         </script>
+         <form name="myForm" ng:controller="Ctrl">
+           <input type="radio" ng:model="color" value="red">  Red <br/>
+           <input type="radio" ng:model="color" value="green"> Green <br/>
+           <input type="radio" ng:model="color" value="blue"> Blue <br/>
+           <tt>color = {{color}}</tt><br/>
+          </form>
+        </doc:source>
+        <doc:scenario>
+          it('should change state', function() {
+            expect(binding('color')).toEqual('blue');
+
+            input('color').select('red');
+            expect(binding('color')).toEqual('red');
+          });
+        </doc:scenario>
+      </doc:example>
+   */
+  'radio': radioInputType,
 
 
-/**
- * @ngdoc widget
- * @name angular.module.ng.$compileProvider.directive.textarea
- *
- * @description
- * HTML textarea element widget with angular data-binding. The data-binding and validation
- * properties of this element are exactly the same as those of the
- * {@link angular.module.ng.$compileProvider.directive.input input element}.
- *
- * @param {string} type Widget types as defined by {@link angular.inputType}. If the
- *    type is in the format of `@ScopeType` then `ScopeType` is loaded from the
- *    current scope, allowing quick definition of type.
- * @param {string} ng:model Assignable angular expression to data-bind to.
- * @param {string=} name Property name of the form under which the widgets is published.
- * @param {string=} required Sets `REQUIRED` validation error key if the value is not entered.
- * @param {number=} ng:minlength Sets `MINLENGTH` validation error key if the value is shorter than
- *    minlength.
- * @param {number=} ng:maxlength Sets `MAXLENGTH` validation error key if the value is longer than
- *    maxlength.
- * @param {string=} ng:pattern Sets `PATTERN` validation error key if the value does not match the
- *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
- *    patterns defined as scope expressions.
- * @param {string=} ng:change Angular expression to be executed when input changes due to user
- *    interaction with the input element.
- */
-var inputType = {
-  'text': textInputType,
-  'number': numberInputType,
-  'url': urlInputType,
-  'email': emailInputType,
-
-  'radio': radioInputType,
+  /**
+   * @ngdoc inputType
+   * @name angular.module.ng.$compileProvider.directive.input.checkbox
+   *
+   * @description
+   * HTML checkbox.
+   *
+   * @param {string} ng:model Assignable angular expression to data-bind to.
+   * @param {string=} name Property name of the form under which the widgets is published.
+   * @param {string=} ng:true-value The value to which the expression should be set when selected.
+   * @param {string=} ng:false-value The value to which the expression should be set when not selected.
+   * @param {string=} ng:change Angular expression to be executed when input changes due to user
+   *    interaction with the input element.
+   *
+   * @example
+      <doc:example>
+        <doc:source>
+         <script>
+           function Ctrl($scope) {
+             $scope.value1 = true;
+             $scope.value2 = 'YES'
+           }
+         </script>
+         <form name="myForm" ng:controller="Ctrl">
+           Value1: <input type="checkbox" ng:model="value1"> <br/>
+           Value2: <input type="checkbox" ng:model="value2"
+                          ng:true-value="YES" ng:false-value="NO"> <br/>
+           <tt>value1 = {{value1}}</tt><br/>
+           <tt>value2 = {{value2}}</tt><br/>
+          </form>
+        </doc:source>
+        <doc:scenario>
+          it('should change state', function() {
+            expect(binding('value1')).toEqual('true');
+            expect(binding('value2')).toEqual('YES');
+
+            input('value1').check();
+            input('value2').check();
+            expect(binding('value1')).toEqual('false');
+            expect(binding('value2')).toEqual('NO');
+          });
+        </doc:scenario>
+      </doc:example>
+   */
   'checkbox': checkboxInputType,
 
   'hidden': noop,
@@ -808,6 +598,123 @@ function checkboxInputType(scope, element, attr, ctrl) {
 }
 
 
+/**
+ * @ngdoc widget
+ * @name angular.module.ng.$compileProvider.directive.textarea
+ *
+ * @description
+ * HTML textarea element widget with angular data-binding. The data-binding and validation
+ * properties of this element are exactly the same as those of the
+ * {@link angular.module.ng.$compileProvider.directive.input input element}.
+ *
+ * @param {string} ng:model Assignable angular expression to data-bind to.
+ * @param {string=} name Property name of the form under which the widgets is published.
+ * @param {string=} required Sets `REQUIRED` validation error key if the value is not entered.
+ * @param {number=} ng:minlength Sets `MINLENGTH` validation error key if the value is shorter than
+ *    minlength.
+ * @param {number=} ng:maxlength Sets `MAXLENGTH` validation error key if the value is longer than
+ *    maxlength.
+ * @param {string=} ng:pattern Sets `PATTERN` validation error key if the value does not match the
+ *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
+ *    patterns defined as scope expressions.
+ * @param {string=} ng:change Angular expression to be executed when input changes due to user
+ *    interaction with the input element.
+ */
+
+
+/**
+ * @ngdoc widget
+ * @name angular.module.ng.$compileProvider.directive.input
+ *
+ * @description
+ * HTML input element widget with angular data-binding. Input widget follows HTML5 input types
+ * and polyfills the HTML5 validation behavior for older browsers.
+ *
+ * @param {string} ng:model Assignable angular expression to data-bind to.
+ * @param {string=} name Property name of the form under which the widgets is published.
+ * @param {string=} required Sets `REQUIRED` validation error key if the value is not entered.
+ * @param {number=} ng:minlength Sets `MINLENGTH` validation error key if the value is shorter than
+ *    minlength.
+ * @param {number=} ng:maxlength Sets `MAXLENGTH` validation error key if the value is longer than
+ *    maxlength.
+ * @param {string=} ng:pattern Sets `PATTERN` validation error key if the value does not match the
+ *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
+ *    patterns defined as scope expressions.
+ * @param {string=} ng:change Angular expression to be executed when input changes due to user
+ *    interaction with the input element.
+ *
+ * @example
+    <doc:example>
+      <doc:source>
+       <script>
+         function Ctrl($scope) {
+           $scope.user = {name: 'guest', last: 'visitor'};
+         }
+       </script>
+       <div ng:controller="Ctrl">
+         <form name="myForm">
+           User name: <input type="text" name="userName" ng:model="user.name" required>
+           <span class="error" ng:show="myForm.userName.error.REQUIRED">
+             Required!</span><br>
+           Last name: <input type="text" name="lastName" ng:model="user.last"
+             ng:minlength="3" ng:maxlength="10">
+           <span class="error" ng:show="myForm.lastName.error.MINLENGTH">
+             Too short!</span>
+           <span class="error" ng:show="myForm.lastName.error.MAXLENGTH">
+             Too long!</span><br>
+         </form>
+         <hr>
+         <tt>user = {{user}}</tt><br/>
+         <tt>myForm.userName.valid = {{myForm.userName.valid}}</tt><br>
+         <tt>myForm.userName.error = {{myForm.userName.error}}</tt><br>
+         <tt>myForm.lastName.valid = {{myForm.lastName.valid}}</tt><br>
+         <tt>myForm.userName.error = {{myForm.lastName.error}}</tt><br>
+         <tt>myForm.valid = {{myForm.valid}}</tt><br>
+         <tt>myForm.error.REQUIRED = {{!!myForm.error.REQUIRED}}</tt><br>
+         <tt>myForm.error.MINLENGTH = {{!!myForm.error.MINLENGTH}}</tt><br>
+         <tt>myForm.error.MAXLENGTH = {{!!myForm.error.MAXLENGTH}}</tt><br>
+       </div>
+      </doc:source>
+      <doc:scenario>
+        it('should initialize to model', function() {
+          expect(binding('user')).toEqual('{"last":"visitor","name":"guest"}');
+          expect(binding('myForm.userName.valid')).toEqual('true');
+          expect(binding('myForm.valid')).toEqual('true');
+        });
+
+        it('should be invalid if empty when required', function() {
+          input('user.name').enter('');
+          expect(binding('user')).toEqual('{"last":"visitor","name":null}');
+          expect(binding('myForm.userName.valid')).toEqual('false');
+          expect(binding('myForm.valid')).toEqual('false');
+        });
+
+        it('should be valid if empty when min length is set', function() {
+          input('user.last').enter('');
+          expect(binding('user')).toEqual('{"last":"","name":"guest"}');
+          expect(binding('myForm.lastName.valid')).toEqual('true');
+          expect(binding('myForm.valid')).toEqual('true');
+        });
+
+        it('should be invalid if less than required min length', function() {
+          input('user.last').enter('xx');
+          expect(binding('user')).toEqual('{"last":"visitor","name":"guest"}');
+          expect(binding('myForm.lastName.valid')).toEqual('false');
+          expect(binding('myForm.lastName.error')).toMatch(/MINLENGTH/);
+          expect(binding('myForm.valid')).toEqual('false');
+        });
+
+        it('should be valid if longer than max length', function() {
+          input('user.last').enter('some ridiculously long name');
+          expect(binding('user'))
+            .toEqual('{"last":"visitor","name":"guest"}');
+          expect(binding('myForm.lastName.valid')).toEqual('false');
+          expect(binding('myForm.lastName.error')).toMatch(/MAXLENGTH/);
+          expect(binding('myForm.valid')).toEqual('false');
+        });
+      </doc:scenario>
+    </doc:example>
+ */
 var inputDirective = [function() {
   return {
     restrict: 'E',
@@ -821,6 +728,28 @@ var inputDirective = [function() {
 }];
 
 
+/**
+ * @ngdoc object
+ * @name angular.module.ng.$compileProvider.directive.ng:model.NgModelController
+ *
+ * @property {string} viewValue Actual string value in the view.
+ * @property {*} modelValue The value in the model, that the widget is bound to.
+ * @property {Array.<Function>} parsers Whenever the widget reads value from the DOM, it executes
+ *     all of these functions to sanitize / convert the value as well as validate.
+ *
+ * @property {Array.<Function>} formatters Wheneveer the model value changes, it executes all of
+ *     these functions to convert the value as well as validate.
+ *
+ * @property {Object} error An bject hash with all errors as keys.
+ *
+ * @property {boolean} pristine True if user has not interacted with the widget yet.
+ * @property {boolean} dirty True if user has already interacted with the widget.
+ * @property {boolean} valid True if there is no error.
+ * @property {boolean} invalid True if at least one error on the widget.
+ *
+ * @description
+ *
+ */
 var NgModelController = ['$scope', '$exceptionHandler', 'ngModel',
     function($scope, $exceptionHandler, ngModel) {
   this.viewValue = Number.NaN;
@@ -834,6 +763,21 @@ var NgModelController = ['$scope', '$exceptionHandler', 'ngModel',
   this.invalid = false;
   this.render = noop;
 
+
+  /**
+   * @ngdoc function
+   * @name angular.module.ng.$compileProvider.directive.ng:model.NgModelController#touch
+   * @methodOf angular.module.ng.$compileProvider.directive.ng:model.NgModelController
+   *
+   * @return {boolean} Whether it did change state.
+   *
+   * @description
+   * This method should be called from within a DOM event handler.
+   * For example {@link angular.module.ng.$compileProvider.directive.input input} or
+   * {@link angular.module.ng.$compileProvider.directive.select select} directives call it.
+   *
+   * It changes state to `dirty` and emits `$viewTouch` event if the state was `pristine` before.
+   */
   this.touch = function() {
     if (this.dirty) return false;
 
@@ -847,31 +791,59 @@ var NgModelController = ['$scope', '$exceptionHandler', 'ngModel',
     return true;
   };
 
-  // don't $emit valid if already valid, the same for $invalid
-  // not sure about this method name, should the argument be reversed ? emitError ?
+
+  /**
+   * @ngdoc function
+   * @name angular.module.ng.$compileProvider.directive.ng:model.NgModelController#emitValidity
+   * @methodOf angular.module.ng.$compileProvider.directive.ng:model.NgModelController
+   *
+   * @description
+   * Change the validity state, and notifies the form when the widget changes validity. (i.e. does
+   * not emit `$invalid` if given validator is already marked as invalid).
+   *
+   * This method should be called by validators - ie the parser or formatter method.
+   *
+   * @param {string} name Name of the validator.
+   * @param {boolean} isValid Whether it should $emit `$valid` (true) or `$invalid` (false) event.
+   */
   this.emitValidity = function(name, isValid) {
 
     if (!isValid && this.error[name]) return;
     if (isValid && !this.error[name]) return;
 
-    if (!isValid) {
-      this.error[name] = true;
-      this.invalid = true;
-      this.valid = false;
-    }
-
     if (isValid) {
       delete this.error[name];
       if (equals(this.error, {})) {
         this.valid = true;
         this.invalid = false;
       }
+    } else {
+      this.error[name] = true;
+      this.invalid = true;
+      this.valid = false;
     }
 
     return $scope.$emit(isValid ? '$valid' : '$invalid', name, this);
   };
 
-  // view -> model
+
+  /**
+   * @ngdoc function
+   * @name angular.module.ng.$compileProvider.directive.ng:model.NgModelController#read
+   * @methodOf angular.module.ng.$compileProvider.directive.ng:model.NgModelController
+   *
+   * @description
+   * Read a value from view.
+   *
+   * This method should be called from within a DOM event handler.
+   * For example {@link angular.module.ng.$compileProvider.directive.input input} or
+   * {@link angular.module.ng.$compileProvider.directive.select select} directives call it.
+   *
+   * It internally calls all `formatters` and if resulted value is valid, update the model and emits
+   * `$viewChange` event afterwards.
+   *
+   * @param {string} value Value from the view
+   */
   this.read = function(value) {
     this.viewValue = value;
 
@@ -911,6 +883,37 @@ var NgModelController = ['$scope', '$exceptionHandler', 'ngModel',
 }];
 
 
+/**
+ * @ngdoc directive
+ * @name angular.module.ng.$compileProvider.directive.ng:model
+ *
+ * @element input
+ *
+ * @description
+ * Is directive that tells Angular to do two-way data binding. It works together with `input`, `select`, `textarea`. You can easily write your own directives to use `ng:model` pretty easily.
+ *
+ * `ng:model` is responsible for:
+ *
+ * - binding the view into the model, which other directives such as `input`, `textarea` or `select`
+ *   require,
+ * - providing validation behavior (i.e. required, number, email, url),
+ * - keeping state of the widget (valid/invalid, dirty/pristine, validation errors),
+ * - setting related css class onto the element (`ng-valid`, `ng-invalid`, `ng-dirty`, `ng-pristine`),
+ * - register the widget with parent {@link angular.module.ng.$compileProvider.directive.form form}.
+ *
+ * For examples, how to use `ng:model`, see:
+ *
+ *  - {@link angular.module.ng.$compileProvider.directive.input input}
+ *    - {@link angular.module.ng.$compileProvider.directive.input.text text}
+ *    - {@link angular.module.ng.$compileProvider.directive.input.checkbox checkbox}
+ *    - {@link angular.module.ng.$compileProvider.directive.input.radio radio}
+ *    - {@link angular.module.ng.$compileProvider.directive.input.number number}
+ *    - {@link angular.module.ng.$compileProvider.directive.input.email email}
+ *    - {@link angular.module.ng.$compileProvider.directive.input.url url}
+ *  - {@link angular.module.ng.$compileProvider.directive.select select}
+ *  - {@link angular.module.ng.$compileProvider.directive.textarea textarea}
+ *
+ */
 var ngModelDirective = [function() {
   return {
     inject: {
@@ -942,6 +945,53 @@ var ngModelDirective = [function() {
 }];
 
 
+/**
+ * @ngdoc directive
+ * @name angular.module.ng.$compileProvider.directive.ng:change
+ *
+ * @description
+ * Evaluate given expression when user changes the input.
+ * The expression is not evaluated when the value change is coming from the model.
+ *
+ * Note, this directive requires `ng:model` to be present.
+ *
+ * @element input
+ *
+ * @example
+ * <doc:example>
+ *   <doc:source>
+ *     <script>
+ *       function Controller($scope) {
+ *         $scope.counter = 0;
+ *         $scope.change = function() {
+ *           $scope.counter++;
+ *         };
+ *       }
+ *     </script>
+ *     <div ng:controller="Controller">
+ *       <input type="checkbox" ng:model="confirmed" ng:change="change()" id="ng-change-example1" />
+ *       <input type="checkbox" ng:model="confirmed" id="ng-change-example2" />
+ *       <label for="ng-change-example2">Confirmed</label><br />
+ *       debug = {{confirmed}}<br />
+ *       counter = {{counter}}
+ *     </div>
+ *   </doc:source>
+ *   <doc:scenario>
+ *     it('should evaluate the expression if changing from view', function() {
+ *       expect(binding('counter')).toEqual('0');
+ *       element('#ng-change-example1').click();
+ *       expect(binding('counter')).toEqual('1');
+ *       expect(binding('confirmed')).toEqual('true');
+ *     });
+ *
+ *     it('should not evaluate the expression if changing from model', function() {
+ *       element('#ng-change-example2').click();
+ *       expect(binding('counter')).toEqual('0');
+ *       expect(binding('confirmed')).toEqual('true');
+ *     });
+ *   </doc:scenario>
+ * </doc:example>
+ */
 var ngChangeDirective = valueFn({
   require: 'ngModel',
   link: function(scope, element, attr, ctrl) {
@@ -952,6 +1002,38 @@ var ngChangeDirective = valueFn({
 });
 
 
+/**
+ * @ngdoc directive
+ * @name angular.module.ng.$compileProvider.directive.ng:bind-immediate
+ *
+ * @element input
+ *
+ * @description
+ * By default, Angular udpates the model only on `blur` event - when the input looses focus.
+ * If you want to update after every key stroke, use `ng:bind-immediate`.
+ *
+ * @example
+ * <doc:example>
+ *   <doc:source>
+ *     First name: <input type="text" ng:model="firstName" /><br />
+ *     Last name: <input type="text" ng:model="lastName" ng:bind-immediate /><br />
+ *
+ *     First name ({{firstName}}) is only updated on `blur` event, but the last name ({{lastName}})
+ *     is updated immediately, because of using `ng:bind-immediate`.
+ *   </doc:source>
+ *   <doc:scenario>
+ *     it('should update first name on blur', function() {
+ *       input('firstName').enter('santa', 'blur');
+ *       expect(binding('firstName')).toEqual('santa');
+ *     });
+ *
+ *     it('should update last name immediately', function() {
+ *       input('lastName').enter('santa', 'keydown');
+ *       expect(binding('lastName')).toEqual('santa');
+ *     });
+ *   </doc:scenario>
+ * </doc:example>
+ */
 var ngBindImmediateDirective = ['$browser', function($browser) {
   return {
     require: 'ngModel',
@@ -1005,3 +1087,83 @@ var requiredDirective = [function() {
     }
   };
 }];
+
+
+/**
+ * @ngdoc directive
+ * @name angular.module.ng.$compileProvider.directive.ng:list
+ *
+ * @description
+ * Text input that converts between comma-seperated string into an array of strings.
+ *
+ * @param {string} ng:model Assignable angular expression to data-bind to.
+ * @param {string=} name Property name of the form under which the widgets is published.
+ * @param {string=} required Sets `REQUIRED` validation error key if the value is not entered.
+ * @param {string=} ng:pattern Sets `PATTERN` validation error key if the value does not match the
+ *    RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for
+ *    patterns defined as scope expressions.
+ * @param {string=} ng:change Angular expression to be executed when input changes due to user
+ *    interaction with the input element.
+ *
+ * @element input
+ *
+ * @example
+    <doc:example>
+      <doc:source>
+       <script>
+         function Ctrl($scope) {
+           $scope.names = ['igor', 'misko', 'vojta'];
+         }
+       </script>
+       <form name="myForm" ng:controller="Ctrl">
+         List: <input type="list" name="input" ng:model="names" required>
+         <span class="error" ng:show="myForm.list.error.REQUIRED">
+           Required!</span>
+         <tt>names = {{names}}</tt><br/>
+         <tt>myForm.input.valid = {{myForm.input.valid}}</tt><br/>
+         <tt>myForm.input.error = {{myForm.input.error}}</tt><br/>
+         <tt>myForm.valid = {{myForm.valid}}</tt><br/>
+         <tt>myForm.error.REQUIRED = {{!!myForm.error.REQUIRED}}</tt><br/>
+        </form>
+      </doc:source>
+      <doc:scenario>
+        it('should initialize to model', function() {
+          expect(binding('names')).toEqual('["igor","misko","vojta"]');
+          expect(binding('myForm.input.valid')).toEqual('true');
+        });
+
+        it('should be invalid if empty', function() {
+          input('names').enter('');
+          expect(binding('names')).toEqual('');
+          expect(binding('myForm.input.valid')).toEqual('false');
+        });
+      </doc:scenario>
+    </doc:example>
+ */
+var ngListDirective = function() {
+  return {
+    require: 'ngModel',
+    link: function(scope, element, attr, ctrl) {
+      var parse = function(viewValue) {
+        var list = [];
+
+        if (viewValue) {
+          forEach(viewValue.split(/\s*,\s*/), function(value) {
+            if (value) list.push(value);
+          });
+        }
+
+        return list;
+      };
+
+      ctrl.parsers.push(parse);
+      ctrl.formatters.push(function(value) {
+        if (isArray(value) && !equals(parse(ctrl.viewValue), value)) {
+          return value.join(', ');
+        }
+
+        return undefined;
+      });
+    }
+  };
+};