1 files changed, 100 insertions, 0 deletions
diff --git a/dom/xul/XULMenuElement.cpp b/dom/xul/XULMenuElement.cpp
new file mode 100644
index 0000000000..65bd6c13c4
--- /dev/null
+++ b/dom/xul/XULMenuElement.cpp
@@ -0,0 +1,100 @@
+/* -*- 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/KeyboardEvent.h"
+#include "mozilla/dom/KeyboardEventBinding.h"
+#include "mozilla/dom/Element.h"
+#include "nsIFrame.h"
+#include "nsMenuBarFrame.h"
+#include "nsMenuBarListener.h"
+#include "nsMenuFrame.h"
+#include "nsMenuPopupFrame.h"
+#include "mozilla/dom/XULMenuElement.h"
+#include "mozilla/dom/XULMenuElementBinding.h"
+#include "nsXULPopupManager.h"
+
+namespace mozilla {
+namespace dom {
+
+JSObject* XULMenuElement::WrapNode(JSContext* aCx,
+                                   JS::Handle<JSObject*> aGivenProto) {
+  return XULMenuElement_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+already_AddRefed<Element> XULMenuElement::GetActiveChild() {
+  nsMenuFrame* menu = do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
+  if (menu) {
+    RefPtr<Element> el;
+    menu->GetActiveChild(getter_AddRefs(el));
+    return el.forget();
+  }
+  return nullptr;
+}
+
+void XULMenuElement::SetActiveChild(Element* arg) {
+  nsMenuFrame* menu = do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
+  if (menu) {
+    menu->SetActiveChild(arg);
+  }
+}
+
+bool XULMenuElement::HandleKeyPress(KeyboardEvent& keyEvent) {
+  nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
+  if (!pm) {
+    return false;
+  }
+
+  // if event has already been handled, bail
+  if (keyEvent.DefaultPrevented()) {
+    return false;
+  }
+
+  if (nsMenuBarListener::IsAccessKeyPressed(&keyEvent)) return false;
+
+  nsMenuFrame* menu = do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
+  if (!menu) {
+    return false;
+  }
+
+  nsMenuPopupFrame* popupFrame = menu->GetPopup();
+  if (!popupFrame) {
+    return false;
+  }
+
+  uint32_t keyCode = keyEvent.KeyCode();
+  switch (keyCode) {
+    case KeyboardEvent_Binding::DOM_VK_UP:
+    case KeyboardEvent_Binding::DOM_VK_DOWN:
+    case KeyboardEvent_Binding::DOM_VK_HOME:
+    case KeyboardEvent_Binding::DOM_VK_END: {
+      nsNavigationDirection theDirection;
+      theDirection = NS_DIRECTION_FROM_KEY_CODE(popupFrame, keyCode);
+      return pm->HandleKeyboardNavigationInPopup(popupFrame, theDirection);
+    }
+    default:
+      return pm->HandleShortcutNavigation(&keyEvent, popupFrame);
+  }
+}
+
+bool XULMenuElement::OpenedWithKey() {
+  nsMenuFrame* menuframe = do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
+  if (!menuframe) {
+    return false;
+  }
+
+  nsIFrame* frame = menuframe->GetParent();
+  while (frame) {
+    nsMenuBarFrame* menubar = do_QueryFrame(frame);
+    if (menubar) {
+      return menubar->IsActiveByKeyboard();
+    }
+    frame = frame->GetParent();
+  }
+  return false;
+}
+
+}  // namespace dom
+}  // namespace mozilla