Add live Javascript viewer for GM expectations

expectations/gm/loader.js

Index: expectations/gm/loader.js
===================================================================
--- expectations/gm/loader.js	(revision 0)
+++ expectations/gm/loader.js	(revision 0)
@@ -0,0 +1,52 @@
+/*
+ * GMExpectedResultsLoader:
+ * Reads an expected-results.json file, and imports its data into $scope.
+ */
+var GMExpectedResultsLoader = angular.module(
+    'GMExpectedResultsLoader',
+    [],
+    function($httpProvider) {
+      /* Override transformResponse so that the numeric checksums are interpreted as
+       * strings instead, since Javascript cannot handle 64-bit integers. */
+      $httpProvider.defaults.transformResponse = function(data, headersGetter) {
+        return JSON.parse(data.replace(/\s(\d+)\s/g, " \"$1\" "));
+      }
+    }
+);
+GMExpectedResultsLoader.controller(
+    'GMExpectedResultsLoader.Controller',
+    function($scope, $http) {
+      /* When the changePlatformPath function is called, download expected-results.json
+       * from the desired platform directory.
+       *
+       * When the JSON is received, predigest it and return it to the frontend as
+       * $scope.gmExpectedResults .
+       */
+      $scope.changePlatformPath = function() {
+        $http.get($scope.platformPath + "/expected-results.json").success(
+            function(response) {
+              var jsonResults = [];
+              var imageNameRegex = /^(.+)_([^_]+).png/;
+              angular.forEach(response['expected-results'], function(imageExpectations, imageName) {
+                var matched = imageNameRegex.exec(imageName);
+		var allowedImages = [];
+		angular.forEach(imageExpectations['allowed-digests'], function(allowedDigest, key) {
+		  var thisImage = {
+		    hashType: allowedDigest[0], hashValue: allowedDigest[1]
+		  };
+		  allowedImages.push(thisImage);
+		});
+                var thisResult = {
+                  test: matched[1], config: matched[2],
+		  allowedImages: allowedImages,
+		  bugs: imageExpectations['bugs'],
+		  reviewedByHuman: imageExpectations['reviewed-by-human']
+		};
+                jsonResults.push(thisResult);
+              });
+              $scope.gmExpectedResults = jsonResults;
+            }
+         );
+      };
+    }
+);