1 files changed, 91 insertions, 0 deletions
diff --git a/dom/events/MouseScrollEvent.cpp b/dom/events/MouseScrollEvent.cpp
new file mode 100644
index 0000000000..4007c0b516
--- /dev/null
+++ b/dom/events/MouseScrollEvent.cpp
@@ -0,0 +1,91 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#include "mozilla/dom/MouseScrollEvent.h"
+#include "mozilla/MouseEvents.h"
+#include "prtime.h"
+#include "nsIDOMMouseScrollEvent.h"
+
+namespace mozilla {
+namespace dom {
+
+MouseScrollEvent::MouseScrollEvent(EventTarget* aOwner,
+                                   nsPresContext* aPresContext,
+                                   WidgetMouseScrollEvent* aEvent)
+  : MouseEvent(aOwner, aPresContext,
+               aEvent ? aEvent :
+                        new WidgetMouseScrollEvent(false, eVoidEvent, nullptr))
+{
+  if (aEvent) {
+    mEventIsInternal = false;
+  } else {
+    mEventIsInternal = true;
+    mEvent->mTime = PR_Now();
+    mEvent->mRefPoint = LayoutDeviceIntPoint(0, 0);
+    static_cast<WidgetMouseEventBase*>(mEvent)->inputSource =
+      nsIDOMMouseEvent::MOZ_SOURCE_UNKNOWN;
+  }
+
+  mDetail = mEvent->AsMouseScrollEvent()->mDelta;
+}
+
+NS_IMPL_ADDREF_INHERITED(MouseScrollEvent, MouseEvent)
+NS_IMPL_RELEASE_INHERITED(MouseScrollEvent, MouseEvent)
+
+NS_INTERFACE_MAP_BEGIN(MouseScrollEvent)
+NS_INTERFACE_MAP_END_INHERITING(MouseEvent)
+
+void
+MouseScrollEvent::InitMouseScrollEvent(const nsAString& aType,
+                                       bool aCanBubble,
+                                       bool aCancelable,
+                                       nsGlobalWindow* aView,
+                                       int32_t aDetail,
+                                       int32_t aScreenX,
+                                       int32_t aScreenY,
+                                       int32_t aClientX,
+                                       int32_t aClientY,
+                                       bool aCtrlKey,
+                                       bool aAltKey,
+                                       bool aShiftKey,
+                                       bool aMetaKey,
+                                       uint16_t aButton,
+                                       EventTarget* aRelatedTarget,
+                                       int32_t aAxis)
+{
+  NS_ENSURE_TRUE_VOID(!mEvent->mFlags.mIsBeingDispatched);
+
+  MouseEvent::InitMouseEvent(aType, aCanBubble, aCancelable, aView, aDetail,
+                             aScreenX, aScreenY, aClientX, aClientY,
+                             aCtrlKey, aAltKey, aShiftKey, aMetaKey, aButton,
+                             aRelatedTarget);
+  mEvent->AsMouseScrollEvent()->mIsHorizontal =
+    (aAxis == nsIDOMMouseScrollEvent::HORIZONTAL_AXIS);
+}
+
+int32_t
+MouseScrollEvent::Axis()
+{
+  return mEvent->AsMouseScrollEvent()->mIsHorizontal ?
+          static_cast<int32_t>(nsIDOMMouseScrollEvent::HORIZONTAL_AXIS) :
+          static_cast<int32_t>(nsIDOMMouseScrollEvent::VERTICAL_AXIS);
+}
+
+} // namespace dom
+} // namespace mozilla
+
+using namespace mozilla;
+using namespace dom;
+
+already_AddRefed<MouseScrollEvent>
+NS_NewDOMMouseScrollEvent(EventTarget* aOwner,
+                          nsPresContext* aPresContext,
+                          WidgetMouseScrollEvent* aEvent)
+{
+  RefPtr<MouseScrollEvent> it =
+    new MouseScrollEvent(aOwner, aPresContext, aEvent);
+  return it.forget();
+}