1 files changed, 53 insertions, 0 deletions
diff --git a/js/vendor/matches-selector/matches-selector.js b/js/vendor/matches-selector/matches-selector.js
new file mode 100644
index 000000000..482a795e9
--- /dev/null
+++ b/js/vendor/matches-selector/matches-selector.js
@@ -0,0 +1,53 @@
+/**
+ * matchesSelector v2.0.1
+ * matchesSelector( element, '.selector' )
+ * MIT license
+ */
+
+/*jshint browser: true, strict: true, undef: true, unused: true */
+
+( function( window, factory ) {
+  /*global define: false, module: false */
+  'use strict';
+  // universal module definition
+  if ( typeof define == 'function' && define.amd ) {
+    // AMD
+    define( factory );
+  } else if ( typeof module == 'object' && module.exports ) {
+    // CommonJS
+    module.exports = factory();
+  } else {
+    // browser global
+    window.matchesSelector = factory();
+  }
+
+}( window, function factory() {
+  'use strict';
+
+  var matchesMethod = ( function() {
+    var ElemProto = Element.prototype;
+    // check for the standard method name first
+    if ( ElemProto.matches ) {
+      return 'matches';
+    }
+    // check un-prefixed
+    if ( ElemProto.matchesSelector ) {
+      return 'matchesSelector';
+    }
+    // check vendor prefixes
+    var prefixes = [ 'webkit', 'moz', 'ms', 'o' ];
+
+    for ( var i=0; i < prefixes.length; i++ ) {
+      var prefix = prefixes[i];
+      var method = prefix + 'MatchesSelector';
+      if ( ElemProto[ method ] ) {
+        return method;
+      }
+    }
+  })();
+
+  return function matchesSelector( elem, selector ) {
+    return elem[ matchesMethod ]( selector );
+  };
+
+}));