Add UI for viewing labels on a manifest in the tags view

static/js/directives/ui/manifest-label-list.js

@@ -0,0 +1,47 @@
+/**
+ * An element which displays the labels on a repository manifest.
+ */
+angular.module('quay').directive('manifestLabelList', function () {
+  var directiveDefinitionObject = {
+    priority: 0,
+    templateUrl: '/static/directives/manifest-label-list.html',
+    replace: false,
+    transclude: true,
+    restrict: 'C',
+    scope: {
+      'repository': '=repository',
+      'manifestDigest': '=manifestDigest',
+    },
+    controller: function($scope, $element, ApiService) {
+      $scope.labels = null;
+
+      var loadLabels = function() {
+        if (!$scope.repository) {
+          return;
+        }
+
+        if (!$scope.manifestDigest) {
+          return;
+        }
+
+        $scope.labels = null;
+        $scope.loadError = false;
+
+        var params = {
+          'repository': $scope.repository.namespace + '/' + $scope.repository.name,
+          'manifestref': $scope.manifestDigest
+        };
+
+        ApiService.listManifestLabels(null, params).then(function(resp) {
+          $scope.labels = resp['labels'];
+        }, function() {
+          $scope.loadError = true;
+        });
+      };
+
+      $scope.$watch('repository', loadLabels);
+      $scope.$watch('manifestDigest', loadLabels);
+    }
+  };
+  return directiveDefinitionObject;
+});