Add directive for file input change

index.html

@@ -33,6 +33,7 @@
     <script type="text/javascript" src="js/filters.js"></script>
     <script type="text/javascript" src="js/handlers.js"></script>
     <script type="text/javascript" src="js/connection.js"></script>
+    <script type="text/javascript" src="js/file-change.js"></script>
     <script type="text/javascript" src="js/inputbar.js"></script>
     <script type="text/javascript" src="js/plugin-directive.js"></script>
     <script type="text/javascript" src="js/websockets.js"></script>

js/file-change.js

@@ -0,0 +1,23 @@
+(function() {
+'use strict';
+
+var weechat = angular.module('weechat');
+
+weechat.directive('fileChange', ['$parse', function($parse) {
+
+    return {
+        restrict: 'A',
+        link: function ($scope, element, attrs) {
+            var attrHandler = $parse(attrs.fileChange);
+            var handler = function (e) {
+                $scope.$apply(function () {
+                    attrHandler($scope, { $event: e, files: e.target.files });
+                });
+            };
+            element[0].addEventListener('change', handler, false);
+        }
+    };
+
+  }]);
+
+})();