1 files changed, 42 insertions, 0 deletions
diff --git a/dom/webidl/WheelEvent.webidl b/dom/webidl/WheelEvent.webidl
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+++ b/dom/webidl/WheelEvent.webidl
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+/* -*- Mode: IDL; 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/.
+ *
+ * For more information on this interface please see
+ * http://dev.w3.org/2006/webapi/DOM-Level-3-Events/html/DOM3-Events.html
+ *
+ * Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
+ * liability, trademark and document use rules apply.
+ */
+
+[Exposed=Window]
+interface WheelEvent : MouseEvent
+{
+  constructor(DOMString type, optional WheelEventInit eventInitDict = {});
+
+  const unsigned long DOM_DELTA_PIXEL = 0x00;
+  const unsigned long DOM_DELTA_LINE  = 0x01;
+  const unsigned long DOM_DELTA_PAGE  = 0x02;
+
+  // Legacy MouseWheelEvent API replaced by standard WheelEvent API.
+  [NeedsCallerType]
+  readonly attribute long wheelDeltaX;
+  [NeedsCallerType]
+  readonly attribute long wheelDeltaY;
+  [NeedsCallerType]
+  readonly attribute long wheelDelta;
+
+  [NeedsCallerType] readonly attribute double        deltaX;
+  [NeedsCallerType] readonly attribute double        deltaY;
+  [NeedsCallerType] readonly attribute double        deltaZ;
+  [NeedsCallerType] readonly attribute unsigned long deltaMode;
+};
+
+dictionary WheelEventInit : MouseEventInit
+{
+  double deltaX = 0;
+  double deltaY = 0;
+  double deltaZ = 0;
+  unsigned long deltaMode = 0;
+};