feat(ngAria[ngClick]): anchor should treat keypress as click

src/ngAria/aria.js

@@ -377,6 +377,27 @@ ngAriaModule.directive('ngShow', ['$aria', function($aria) {
             });
           }
         }
+
+        if ($aria.config('bindKeypress') && isNodeOneOf(elem, ['A', 'BUTTON'])) {
+          elem.on('keypress', function(event) {
+            var keyCode = event.which || event.keyCode;
+
+            if (elem[0].nodeName === 'A') {
+              var hasHref = elem.attr('href') != null && elem.attr('href') !== '';
+              if ((keyCode === 13 && !hasHref) || keyCode === 32) {
+                scope.$apply(callback);
+              }
+            } else if (elem[0].nodeName === 'BUTTON') {
+              if (keyCode === 32) {
+                scope.$apply(callback);
+              }
+            }
+
+            function callback() {
+              fn(scope, { $event: event });
+            }
+          });
+        }
       };
     }
   };

test/ngAria/ariaSpec.js

@@ -755,6 +755,35 @@ describe('$aria', function() {
       element.triggerHandler({ type: 'keypress', keyCode: 13 });
       expect(element.text()).toBe('');
     });
+
+    it('should bind keypress to anchor elements without href defined', function() {
+      compileElement('<a ng-click="event = $event">{{event.type}}{{event.keyCode}}</a>');
+      expect(element.text()).toBe('');
+      element.triggerHandler({ type: 'keypress', keyCode: 13 });
+      expect(element.text()).toBe('keypress13');
+    });
+
+    it('should bind keypress to anchor elements with empty href defined', function() {
+      compileElement('<a href="" ng-click="event = $event">{{event.type}}{{event.keyCode}}</a>');
+      expect(element.text()).toBe('');
+      element.triggerHandler({ type: 'keypress', keyCode: 13 });
+      expect(element.text()).toBe('keypress13');
+    });
+
+    it('should not bind keypress to anchor elements with href defined', function() {
+      compileElement('<a href="http://somwehere" ng-click="event = $event">{{event.type}}{{event.keyCode}}</a>');
+      expect(element.text()).toBe('');
+      element.triggerHandler({ type: 'keypress', keyCode: 13 });
+      expect(element.text()).toBe('');
+    });
+
+    it('should bind space keypress to button elements', function() {
+      compileElement('<button ng-click="event = $event">{{event.type}}{{event.keyCode}}</button>');
+      expect(element.text()).toBe('');
+      element.triggerHandler({ type: 'keypress', keyCode: 32 });
+      expect(element.text()).toBe('keypress32');
+    });
+
   });
 
   describe('actions when bindRoleForClick is set to false', function() {