diff -r 000000000000 -r 6474c204b198 dom/xbl/nsXBLWindowKeyHandler.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/xbl/nsXBLWindowKeyHandler.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,91 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsXBLWindowKeyHandler_h__
+#define nsXBLWindowKeyHandler_h__
+
+#include "nsWeakPtr.h"
+#include "nsIDOMEventListener.h"
+
+class nsIAtom;
+class nsIDOMElement;
+class nsIDOMKeyEvent;
+class nsXBLSpecialDocInfo;
+class nsXBLPrototypeHandler;
+
+namespace mozilla {
+namespace dom {
+class Element;
+class EventTarget;
+}
+}
+
+class nsXBLWindowKeyHandler : public nsIDOMEventListener
+{
+public:
+  nsXBLWindowKeyHandler(nsIDOMElement* aElement, mozilla::dom::EventTarget* aTarget);
+  virtual ~nsXBLWindowKeyHandler();
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIDOMEVENTLISTENER
+
+protected:
+  nsresult WalkHandlers(nsIDOMKeyEvent* aKeyEvent, nsIAtom* aEventType);
+
+  // walk the handlers, looking for one to handle the event
+  bool WalkHandlersInternal(nsIDOMKeyEvent* aKeyEvent,
+                            nsIAtom* aEventType,
+                            nsXBLPrototypeHandler* aHandler,
+                            bool aExecute);
+
+  // walk the handlers for aEvent, aCharCode and aIgnoreShiftKey. Execute it
+  // if aExecute = true.
+  bool WalkHandlersAndExecute(nsIDOMKeyEvent* aKeyEvent, nsIAtom* aEventType,
+                              nsXBLPrototypeHandler* aHandler,
+                              uint32_t aCharCode, bool aIgnoreShiftKey,
+                              bool aExecute);
+
+  // HandleEvent function for the capturing phase.
+  void HandleEventOnCapture(nsIDOMKeyEvent* aEvent);
+
+  // Check if any handler would handle the given event.
+  bool HasHandlerForEvent(nsIDOMKeyEvent* aEvent);
+
+  // lazily load the handlers. Overridden to handle being attached
+  // to a particular element rather than the document
+  nsresult EnsureHandlers();
+
+  // check if the given handler cares about the given key event
+  bool EventMatched(nsXBLPrototypeHandler* inHandler, nsIAtom* inEventType,
+                      nsIDOMKeyEvent* inEvent, uint32_t aCharCode,
+                      bool aIgnoreShiftKey);
+
+  // Is an HTML editable element focused
+  bool IsHTMLEditableFieldFocused();
+
+  // Returns the element which was passed as a parameter to the constructor,
+  // unless the element has been removed from the document. Optionally returns
+  // whether the disabled attribute is set on the element (assuming the element
+  // is non-null).
+  already_AddRefed<mozilla::dom::Element> GetElement(bool* aIsDisabled = nullptr);
+  // Using weak pointer to the DOM Element.
+  nsWeakPtr              mWeakPtrForElement;
+  mozilla::dom::EventTarget* mTarget; // weak ref
+
+  // these are not owning references; the prototype handlers are owned
+  // by the prototype bindings which are owned by the docinfo.
+  nsXBLPrototypeHandler* mHandler;     // platform bindings
+  nsXBLPrototypeHandler* mUserHandler; // user-specific bindings
+
+  // holds document info about bindings
+  static nsXBLSpecialDocInfo* sXBLSpecialDocInfo;
+  static uint32_t sRefCnt;
+};
+
+already_AddRefed<nsXBLWindowKeyHandler>
+NS_NewXBLWindowKeyHandler(nsIDOMElement* aElement,
+                          mozilla::dom::EventTarget* aTarget);
+
+#endif