Merge branch 'kberg-work'

[dygraphs.git] / dashed-canvas.js

diff --git a/dashed-canvas.js b/dashed-canvas.js
index cec7729..0fc6874 100644 (file)
--- a/dashed-canvas.js
+++ b/dashed-canvas.js
@@ -4,6 +4,9 @@
  * MIT-licensed (http://opensource.org/licenses/MIT)
  */
 
+(function() {
+'use strict';
+
 /**
  * @fileoverview Adds support for dashed lines to the HTML5 canvas.
  *
@@ -46,8 +49,6 @@
  * as a smaller even length array.
  */
 CanvasRenderingContext2D.prototype.installPattern = function(pattern) {
-  "use strict";
-
   if (typeof(this.isPatternInstalled) !== 'undefined') {
     throw "Must un-install old line pattern before installing a new one.";
   }
@@ -157,7 +158,8 @@ CanvasRenderingContext2D.prototype.installPattern = function(pattern) {
         }
 
         this.restore();
-        x1 = x2, y1 = y2;
+        x1 = x2;
+        y1 = y2;
       }
     }
     realStroke.call(this);
@@ -173,4 +175,6 @@ CanvasRenderingContext2D.prototype.installPattern = function(pattern) {
 CanvasRenderingContext2D.prototype.uninstallPattern = function() {
   // This will be replaced by a non-error version when a pattern is installed.
   throw "Must install a line pattern before uninstalling it.";
-}
+};
+
+})();