diff -r 000000000000 -r 6474c204b198 dom/events/KeyboardEvent.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/events/KeyboardEvent.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,295 @@
+/* -*- 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/. */
+
+#include "mozilla/dom/KeyboardEvent.h"
+#include "mozilla/TextEvents.h"
+#include "prtime.h"
+
+namespace mozilla {
+namespace dom {
+
+KeyboardEvent::KeyboardEvent(EventTarget* aOwner,
+                             nsPresContext* aPresContext,
+                             WidgetKeyboardEvent* aEvent)
+  : UIEvent(aOwner, aPresContext,
+            aEvent ? aEvent : new WidgetKeyboardEvent(false, 0, nullptr))
+  , mInitializedByCtor(false)
+  , mInitialzedWhichValue(0)
+{
+  NS_ASSERTION(mEvent->eventStructType == NS_KEY_EVENT, "event type mismatch");
+
+  if (aEvent) {
+    mEventIsInternal = false;
+  }
+  else {
+    mEventIsInternal = true;
+    mEvent->time = PR_Now();
+    mEvent->AsKeyboardEvent()->mKeyNameIndex = KEY_NAME_INDEX_USE_STRING;
+  }
+}
+
+NS_IMPL_ADDREF_INHERITED(KeyboardEvent, UIEvent)
+NS_IMPL_RELEASE_INHERITED(KeyboardEvent, UIEvent)
+
+NS_INTERFACE_MAP_BEGIN(KeyboardEvent)
+  NS_INTERFACE_MAP_ENTRY(nsIDOMKeyEvent)
+NS_INTERFACE_MAP_END_INHERITING(UIEvent)
+
+bool
+KeyboardEvent::AltKey()
+{
+  return mEvent->AsKeyboardEvent()->IsAlt();
+}
+
+NS_IMETHODIMP
+KeyboardEvent::GetAltKey(bool* aIsDown)
+{
+  NS_ENSURE_ARG_POINTER(aIsDown);
+  *aIsDown = AltKey();
+  return NS_OK;
+}
+
+bool
+KeyboardEvent::CtrlKey()
+{
+  return mEvent->AsKeyboardEvent()->IsControl();
+}
+
+NS_IMETHODIMP
+KeyboardEvent::GetCtrlKey(bool* aIsDown)
+{
+  NS_ENSURE_ARG_POINTER(aIsDown);
+  *aIsDown = CtrlKey();
+  return NS_OK;
+}
+
+bool
+KeyboardEvent::ShiftKey()
+{
+  return mEvent->AsKeyboardEvent()->IsShift();
+}
+
+NS_IMETHODIMP
+KeyboardEvent::GetShiftKey(bool* aIsDown)
+{
+  NS_ENSURE_ARG_POINTER(aIsDown);
+  *aIsDown = ShiftKey();
+  return NS_OK;
+}
+
+bool
+KeyboardEvent::MetaKey()
+{
+  return mEvent->AsKeyboardEvent()->IsMeta();
+}
+
+NS_IMETHODIMP
+KeyboardEvent::GetMetaKey(bool* aIsDown)
+{
+  NS_ENSURE_ARG_POINTER(aIsDown);
+  *aIsDown = MetaKey();
+  return NS_OK;
+}
+
+bool
+KeyboardEvent::Repeat()
+{
+  return mEvent->AsKeyboardEvent()->mIsRepeat;
+}
+
+NS_IMETHODIMP
+KeyboardEvent::GetRepeat(bool* aIsRepeat)
+{
+  NS_ENSURE_ARG_POINTER(aIsRepeat);
+  *aIsRepeat = Repeat();
+  return NS_OK;
+}
+
+bool
+KeyboardEvent::IsComposing()
+{
+  return mEvent->AsKeyboardEvent()->mIsComposing;
+}
+
+NS_IMETHODIMP
+KeyboardEvent::GetModifierState(const nsAString& aKey,
+                                bool* aState)
+{
+  NS_ENSURE_ARG_POINTER(aState);
+
+  *aState = GetModifierState(aKey);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+KeyboardEvent::GetKey(nsAString& aKeyName)
+{
+  mEvent->AsKeyboardEvent()->GetDOMKeyName(aKeyName);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+KeyboardEvent::GetCharCode(uint32_t* aCharCode)
+{
+  NS_ENSURE_ARG_POINTER(aCharCode);
+  *aCharCode = CharCode();
+  return NS_OK;
+}
+
+uint32_t
+KeyboardEvent::CharCode()
+{
+  // If this event is initialized with ctor, we shouldn't check event type.
+  if (mInitializedByCtor) {
+    return mEvent->AsKeyboardEvent()->charCode;
+  }
+
+  switch (mEvent->message) {
+  case NS_KEY_UP:
+  case NS_KEY_DOWN:
+    return 0;
+  case NS_KEY_PRESS:
+    return mEvent->AsKeyboardEvent()->charCode;
+  }
+  return 0;
+}
+
+NS_IMETHODIMP
+KeyboardEvent::GetKeyCode(uint32_t* aKeyCode)
+{
+  NS_ENSURE_ARG_POINTER(aKeyCode);
+  *aKeyCode = KeyCode();
+  return NS_OK;
+}
+
+uint32_t
+KeyboardEvent::KeyCode()
+{
+  // If this event is initialized with ctor, we shouldn't check event type.
+  if (mInitializedByCtor) {
+    return mEvent->AsKeyboardEvent()->keyCode;
+  }
+
+  switch (mEvent->message) {
+  case NS_KEY_UP:
+  case NS_KEY_PRESS:
+  case NS_KEY_DOWN:
+    return mEvent->AsKeyboardEvent()->keyCode;
+  }
+  return 0;
+}
+
+uint32_t
+KeyboardEvent::Which()
+{
+  // If this event is initialized with ctor, which can have independent value.
+  if (mInitializedByCtor) {
+    return mInitialzedWhichValue;
+  }
+
+  switch (mEvent->message) {
+    case NS_KEY_UP:
+    case NS_KEY_DOWN:
+      return KeyCode();
+    case NS_KEY_PRESS:
+      //Special case for 4xp bug 62878.  Try to make value of which
+      //more closely mirror the values that 4.x gave for RETURN and BACKSPACE
+      {
+        uint32_t keyCode = mEvent->AsKeyboardEvent()->keyCode;
+        if (keyCode == NS_VK_RETURN || keyCode == NS_VK_BACK) {
+          return keyCode;
+        }
+        return CharCode();
+      }
+  }
+
+  return 0;
+}
+
+NS_IMETHODIMP
+KeyboardEvent::GetLocation(uint32_t* aLocation)
+{
+  NS_ENSURE_ARG_POINTER(aLocation);
+
+  *aLocation = Location();
+  return NS_OK;
+}
+
+uint32_t
+KeyboardEvent::Location()
+{
+  return mEvent->AsKeyboardEvent()->location;
+}
+
+// static
+already_AddRefed<KeyboardEvent>
+KeyboardEvent::Constructor(const GlobalObject& aGlobal,
+                           const nsAString& aType,
+                           const KeyboardEventInit& aParam,
+                           ErrorResult& aRv)
+{
+  nsCOMPtr<EventTarget> target = do_QueryInterface(aGlobal.GetAsSupports());
+  nsRefPtr<KeyboardEvent> newEvent =
+    new KeyboardEvent(target, nullptr, nullptr);
+  bool trusted = newEvent->Init(target);
+  aRv = newEvent->InitKeyEvent(aType, aParam.mBubbles, aParam.mCancelable,
+                               aParam.mView, aParam.mCtrlKey, aParam.mAltKey,
+                               aParam.mShiftKey, aParam.mMetaKey,
+                               aParam.mKeyCode, aParam.mCharCode);
+  newEvent->SetTrusted(trusted);
+  newEvent->mDetail = aParam.mDetail;
+  newEvent->mInitializedByCtor = true;
+  newEvent->mInitialzedWhichValue = aParam.mWhich;
+
+  WidgetKeyboardEvent* internalEvent = newEvent->mEvent->AsKeyboardEvent();
+  internalEvent->location = aParam.mLocation;
+  internalEvent->mIsRepeat = aParam.mRepeat;
+  internalEvent->mIsComposing = aParam.mIsComposing;
+  internalEvent->mKeyNameIndex = KEY_NAME_INDEX_USE_STRING;
+  internalEvent->mKeyValue = aParam.mKey;
+
+  return newEvent.forget();
+}
+
+NS_IMETHODIMP
+KeyboardEvent::InitKeyEvent(const nsAString& aType,
+                            bool aCanBubble,
+                            bool aCancelable,
+                            nsIDOMWindow* aView,
+                            bool aCtrlKey,
+                            bool aAltKey,
+                            bool aShiftKey,
+                            bool aMetaKey,
+                            uint32_t aKeyCode,
+                            uint32_t aCharCode)
+{
+  nsresult rv = UIEvent::InitUIEvent(aType, aCanBubble, aCancelable, aView, 0);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  WidgetKeyboardEvent* keyEvent = mEvent->AsKeyboardEvent();
+  keyEvent->InitBasicModifiers(aCtrlKey, aAltKey, aShiftKey, aMetaKey);
+  keyEvent->keyCode = aKeyCode;
+  keyEvent->charCode = aCharCode;
+
+  return NS_OK;
+}
+
+} // namespace dom
+} // namespace mozilla
+
+using namespace mozilla;
+using namespace mozilla::dom;
+
+nsresult
+NS_NewDOMKeyboardEvent(nsIDOMEvent** aInstancePtrResult,
+                       EventTarget* aOwner,
+                       nsPresContext* aPresContext,
+                       WidgetKeyboardEvent* aEvent)
+{
+  KeyboardEvent* it = new KeyboardEvent(aOwner, aPresContext, aEvent);
+  NS_ADDREF(it);
+  *aInstancePtrResult = static_cast<Event*>(it);
+  return NS_OK;
+}