Function wrapHandler

mini-code-edit/cm/lib/codemirror.js:2867–2867

(event)

    }
    else {
      var wrapHandler = function(event) {handler(event || window.event);};
      node.attachEvent("on" + type, wrapHandler);
      if (disconnect) return function() {node.detachEvent("on" + type, wrapHandler);};
    }