feat($animate): animate dirty, pristine, valid, invalid for form/fields

Add css animations when form or field status change to/from dirty,
pristine, valid or invalid. This works like animation system present
with ngClass, ngShow, etc.

Closes #5378

1 files changed, 2 insertions, 0 deletions

diff --git a/src/ngAnimate/animate.js b/src/ngAnimate/animate.js
index b4baf3e2..5f2d4401 100644
--- a/src/ngAnimate/animate.js
+++ b/src/ngAnimate/animate.js
@@ -31,6 +31,8 @@
  * | {@link ng.directive:ngIf#usage_animations ngIf}                 | enter and leave                                    |
  * | {@link ng.directive:ngClass#usage_animations ngClass}           | add and remove                                     |
  * | {@link ng.directive:ngShow#usage_animations ngShow & ngHide}    | add and remove (the ng-hide class value)           |
+ * | {@link ng.directive:form#usage_animations form}                 | add and remove (dirty, pristine, valid, invalid & all other validations)                |
+ * | {@link ng.directive:ngModel#usage_animations ngModel}           | add and remove (dirty, pristine, valid, invalid & all other validations)                |
  *
  * You can find out more information about animations upon visiting each directive page.
  *