X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=dygraph-gviz.js;h=b87fe80f7596f0ecb8beae16867fea31c5f04e9d;hb=b49775481c37d9c849d91c25221e84349477361f;hp=110ded24e1bc2f503a20ec09fdce0b6f694beefe;hpb=74a5af31a87b245b89337037bc33a0e900153eae;p=dygraphs.git

diff --git a/dygraph-gviz.js b/dygraph-gviz.js
index 110ded2..b87fe80 100644
--- a/dygraph-gviz.js
+++ b/dygraph-gviz.js
@@ -1,5 +1,8 @@
-// Copyright 2011 Dan Vanderkam (danvdk@gmail.com)
-// All Rights Reserved.
+/**
+ * @license
+ * Copyright 2011 Dan Vanderkam (danvdk@gmail.com)
+ * MIT-licensed (http://opensource.org/licenses/MIT)
+ */
 
 /**
  * @fileoverview A wrapper around the Dygraph class which implements the
@@ -14,13 +17,17 @@
  * - http://dygraphs.com/tests/annotation-gviz.html
  */
 
+/*jshint globalstrict: true */
+/*global Dygraph:false */
+"use strict";
+
 /**
  * A wrapper around Dygraph that implements the gviz API.
  * @param {Object} container The DOM object the visualization should live in.
  */
 Dygraph.GVizChart = function(container) {
   this.container = container;
-}
+};
 
 Dygraph.GVizChart.prototype.draw = function(data, options) {
   // Clear out any existing dygraph.
@@ -32,7 +39,7 @@ Dygraph.GVizChart.prototype.draw = function(data, options) {
   }
 
   this.date_graph = new Dygraph(this.container, data, options);
-}
+};
 
 /**
  * Google charts compatible setSelection
@@ -46,7 +53,7 @@ Dygraph.GVizChart.prototype.setSelection = function(selection_array) {
     row = selection_array[0].row;
   }
   this.date_graph.setSelection(row);
-}
+};
 
 /**
  * Google charts compatible getSelection implementation
@@ -60,12 +67,14 @@ Dygraph.GVizChart.prototype.getSelection = function() {
 
   if (row < 0) return selection;
 
-  col = 1;
-  for (var i in this.date_graph.layout_.datasets) {
+  var col = 1;
+  var datasets = this.date_graph.layout_.datasets;
+  for (var k in datasets) {
+    if (!datasets.hasOwnProperty(k)) continue;
     selection.push({row: row, column: col});
     col++;
   }
 
   return selection;
-}
+};