Add MouseEvent.detail

Author: rnons

src/Web/UIEvent/MouseEvent.js

@@ -59,3 +59,7 @@ exports.getModifierState = function (s) {
     };
   };
 };
+
+exports.detail = function (e) {
+  return e.detail;
+};

src/Web/UIEvent/MouseEvent.purs

@@ -18,6 +18,7 @@ module Web.UIEvent.MouseEvent
   , relatedTarget
   , buttons
   , getModifierState
+  , detail
   ) where
 
 import Prelude
@@ -78,3 +79,5 @@ foreign import getModifierState
   :: String
   -> MouseEvent
   -> Effect Boolean
+
+foreign import detail :: MouseEvent -> Int