2 files changed, 126 insertions, 0 deletions
diff --git a/js/vendor/angular-ui/modules/filters/unique/test/uniqueSpec.js b/js/vendor/angular-ui/modules/filters/unique/test/uniqueSpec.js
new file mode 100644
index 000000000..ae1251f4b
--- /dev/null
+++ b/js/vendor/angular-ui/modules/filters/unique/test/uniqueSpec.js
@@ -0,0 +1,81 @@
+describe('unique', function () {
+  var uniqueFilter;
+
+  beforeEach(module('ui.filters'));
+  beforeEach(inject(function ($filter) {
+    uniqueFilter = $filter('unique');
+  }));
+
+  it('should return unique entries based on object equality', function () {
+    var arrayToFilter = [
+      {key: 'value'},
+      {key: 'value2'},
+      {key: 'value'}
+    ];
+    expect(uniqueFilter(arrayToFilter)).toEqual([
+      {key: 'value'},
+      {key: 'value2'}
+    ]);
+  });
+
+  it('should return unique entries based on object equality for complex objects', function () {
+    var arrayToFilter = [
+      {key: 'value', other: 'other1'},
+      {key: 'value2', other: 'other2'},
+      {other: 'other1', key: 'value'}
+    ];
+    expect(uniqueFilter(arrayToFilter)).toEqual([
+      {key: 'value', other: 'other1'},
+      {key: 'value2', other: 'other2'}
+    ]);
+  });
+
+  it('should return unique entries based on the key provided', function () {
+    var arrayToFilter = [
+      {key: 'value'},
+      {key: 'value2'},
+      {key: 'value'}
+    ];
+    expect(uniqueFilter(arrayToFilter, 'key')).toEqual([
+      {key: 'value'},
+      {key: 'value2'}
+    ]);
+  });
+
+  it('should return unique entries based on the key provided for complex objects', function () {
+    var arrayToFilter = [
+      {key: 'value', other: 'other1'},
+      {key: 'value2', other: 'other2'},
+      {key: 'value', other: 'other3'}
+    ];
+    expect(uniqueFilter(arrayToFilter, 'key')).toEqual([
+      { key: 'value', other: 'other1' },
+      { key: 'value2', other: 'other2' }
+    ]);
+  });
+
+  it('should return unique primitives in arrays', function () {
+    expect(uniqueFilter([1, 2, 1, 3])).toEqual([1, 2, 3]);
+  });
+
+  it('should work correctly for arrays of mixed elements and object equality', function () {
+    expect(uniqueFilter([1, {key: 'value'}, 1, {key: 'value'}, 2, "string", 3])).toEqual([1, {key: 'value'}, 2, "string", 3]);
+  });
+
+  it('should work correctly for arrays of mixed elements and a key specified', function () {
+    expect(uniqueFilter([1, {key: 'value'}, 1, {key: 'value'}, 2, "string", 3], 'key')).toEqual([1, {key: 'value'}, 2, "string", 3]);
+  });
+
+  it('should return unmodified object if not array', function () {
+    expect(uniqueFilter('string', 'someKey')).toEqual('string');
+  });
+
+  it('should return unmodified array if provided key === false', function () {
+    var arrayToFilter = [
+      {key: 'value1'},
+      {key: 'value2'}
+    ];
+    expect(uniqueFilter(arrayToFilter, false)).toEqual(arrayToFilter);
+  });
+
+});
+\ No newline at end of file
diff --git a/js/vendor/angular-ui/modules/filters/unique/unique.js b/js/vendor/angular-ui/modules/filters/unique/unique.js
new file mode 100644
index 000000000..382712297
--- /dev/null
+++ b/js/vendor/angular-ui/modules/filters/unique/unique.js
@@ -0,0 +1,45 @@
+/**
+ * Filters out all duplicate items from an array by checking the specified key
+ * @param [key] {string} the name of the attribute of each object to compare for uniqueness
+ if the key is empty, the entire object will be compared
+ if the key === false then no filtering will be performed
+ * @return {array}
+ */
+angular.module('ui.filters').filter('unique', function () {
+
+  return function (items, filterOn) {
+
+    if (filterOn === false) {
+      return items;
+    }
+
+    if ((filterOn || angular.isUndefined(filterOn)) && angular.isArray(items)) {
+      var hashCheck = {}, newItems = [];
+
+      var extractValueToCompare = function (item) {
+        if (angular.isObject(item) && angular.isString(filterOn)) {
+          return item[filterOn];
+        } else {
+          return item;
+        }
+      };
+
+      angular.forEach(items, function (item) {
+        var valueToCheck, isDuplicate = false;
+
+        for (var i = 0; i < newItems.length; i++) {
+          if (angular.equals(extractValueToCompare(newItems[i]), extractValueToCompare(item))) {
+            isDuplicate = true;
+            break;
+          }
+        }
+        if (!isDuplicate) {
+          newItems.push(item);
+        }
+
+      });
+      items = newItems;
+    }
+    return items;
+  };
+});