Add m-esr52 at 52.6.0

52 files changed, 9403 insertions, 0 deletions

diff --git a/dom/inputmethod/HardwareKeyHandler.cpp b/dom/inputmethod/HardwareKeyHandler.cpp
new file mode 100644
index 000000000..737c30e5b
--- /dev/null
+++ b/dom/inputmethod/HardwareKeyHandler.cpp
@@ -0,0 +1,562 @@
+/* -*- 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 "HardwareKeyHandler.h"
+#include "mozilla/BasicEvents.h"
+#include "mozilla/ClearOnShutdown.h"
+#include "mozilla/dom/KeyboardEvent.h"
+#include "mozilla/dom/TabParent.h"
+#include "mozilla/EventDispatcher.h"
+#include "mozilla/EventStateManager.h"
+#include "mozilla/TextEvents.h"
+#include "nsDeque.h"
+#include "nsFocusManager.h"
+#include "nsFrameLoader.h"
+#include "nsIContent.h"
+#include "nsIDOMHTMLDocument.h"
+#include "nsIDOMHTMLElement.h"
+#include "nsPIDOMWindow.h"
+#include "nsPresContext.h"
+#include "nsPresShell.h"
+
+namespace mozilla {
+
+using namespace dom;
+
+NS_IMPL_ISUPPORTS(HardwareKeyHandler, nsIHardwareKeyHandler)
+
+StaticRefPtr<HardwareKeyHandler> HardwareKeyHandler::sInstance;
+
+HardwareKeyHandler::HardwareKeyHandler()
+  : mInputMethodAppConnected(false)
+{
+}
+
+HardwareKeyHandler::~HardwareKeyHandler()
+{
+}
+
+NS_IMETHODIMP
+HardwareKeyHandler::OnInputMethodAppConnected()
+{
+  if (NS_WARN_IF(mInputMethodAppConnected)) {
+    return NS_ERROR_UNEXPECTED;
+  }
+
+  mInputMethodAppConnected = true;
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+HardwareKeyHandler::OnInputMethodAppDisconnected()
+{
+  if (NS_WARN_IF(!mInputMethodAppConnected)) {
+    return NS_ERROR_UNEXPECTED;
+  }
+
+  mInputMethodAppConnected = false;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+HardwareKeyHandler::RegisterListener(nsIHardwareKeyEventListener* aListener)
+{
+  // Make sure the listener is not nullptr and there is no available
+  // hardwareKeyEventListener now
+  if (NS_WARN_IF(!aListener)) {
+    return NS_ERROR_NULL_POINTER;
+  }
+
+  if (NS_WARN_IF(mHardwareKeyEventListener)) {
+    return NS_ERROR_ALREADY_INITIALIZED;
+  }
+
+  mHardwareKeyEventListener = do_GetWeakReference(aListener);
+
+  if (NS_WARN_IF(!mHardwareKeyEventListener)) {
+    return NS_ERROR_NULL_POINTER;
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+HardwareKeyHandler::UnregisterListener()
+{
+  // Clear the HardwareKeyEventListener
+  mHardwareKeyEventListener = nullptr;
+  return NS_OK;
+}
+
+bool
+HardwareKeyHandler::ForwardKeyToInputMethodApp(nsINode* aTarget,
+                                               WidgetKeyboardEvent* aEvent,
+                                               nsEventStatus* aEventStatus)
+{
+  MOZ_ASSERT(aTarget, "No target provided");
+  MOZ_ASSERT(aEvent, "No event provided");
+
+  // No need to forward hardware key event to IME
+  // if key's defaultPrevented is true
+  if (aEvent->mFlags.mDefaultPrevented) {
+    return false;
+  }
+
+  // No need to forward hardware key event to IME if IME is disabled
+  if (!mInputMethodAppConnected) {
+    return false;
+  }
+
+  // No need to forward hardware key event to IME
+  // if this key event is generated by IME itself(from nsITextInputProcessor)
+  if (aEvent->mIsSynthesizedByTIP) {
+    return false;
+  }
+
+  // No need to forward hardware key event to IME
+  // if the key event is handling or already handled
+  if (aEvent->mInputMethodAppState != WidgetKeyboardEvent::eNotHandled) {
+    return false;
+  }
+
+  // No need to forward hardware key event to IME
+  // if there is no nsIHardwareKeyEventListener in use
+  nsCOMPtr<nsIHardwareKeyEventListener>
+    keyHandler(do_QueryReferent(mHardwareKeyEventListener));
+  if (!keyHandler) {
+    return false;
+  }
+
+  // Set the flags to specify the keyboard event is in forwarding phase.
+  aEvent->mInputMethodAppState = WidgetKeyboardEvent::eHandling;
+
+  // For those keypress events coming after their heading keydown's reply
+  // already arrives, they should be dispatched directly instead of
+  // being stored into the event queue. Otherwise, without the heading keydown
+  // in the event queue, the stored keypress will never be withdrawn to be fired.
+  if (aEvent->mMessage == eKeyPress && mEventQueue.IsEmpty()) {
+    DispatchKeyPress(aTarget, *aEvent, *aEventStatus);
+    return true;
+  }
+
+  // Push the key event into queue for reuse when its reply arrives.
+  KeyboardInfo* copiedInfo =
+    new KeyboardInfo(aTarget,
+                     *aEvent,
+                     aEventStatus ? *aEventStatus : nsEventStatus_eIgnore);
+
+  // No need to forward hardware key event to IME if the event queue is full
+  if (!mEventQueue.Push(copiedInfo)) {
+    delete copiedInfo;
+    return false;
+  }
+
+  // We only forward keydown and keyup event to input-method-app
+  // because input-method-app will generate keypress by itself.
+  if (aEvent->mMessage == eKeyPress) {
+    return true;
+  }
+
+  // Create a keyboard event to pass into
+  // nsIHardwareKeyEventListener.onHardwareKey
+  nsCOMPtr<EventTarget> eventTarget = do_QueryInterface(aTarget);
+  nsPresContext* presContext = GetPresContext(aTarget);
+  RefPtr<KeyboardEvent> keyboardEvent =
+    NS_NewDOMKeyboardEvent(eventTarget, presContext, aEvent->AsKeyboardEvent());
+  // Duplicate the internal event data in the heap for the keyboardEvent,
+  // or the internal data from |aEvent| in the stack may be destroyed by others.
+  keyboardEvent->DuplicatePrivateData();
+
+  // Forward the created keyboard event to input-method-app
+  bool isSent = false;
+  keyHandler->OnHardwareKey(keyboardEvent, &isSent);
+
+  // Pop the pending key event if it can't be forwarded
+  if (!isSent) {
+    mEventQueue.RemoveFront();
+  }
+
+  return isSent;
+}
+
+NS_IMETHODIMP
+HardwareKeyHandler::OnHandledByInputMethodApp(const nsAString& aType,
+                                              uint16_t aDefaultPrevented)
+{
+  // We can not handle this reply because the pending events had been already
+  // removed from the forwarding queue before this reply arrives.
+  if (mEventQueue.IsEmpty()) {
+    return NS_OK;
+  }
+
+  RefPtr<KeyboardInfo> keyInfo = mEventQueue.PopFront();
+
+  // Only allow keydown and keyup to call this method
+  if (NS_WARN_IF(aType.EqualsLiteral("keydown") &&
+                 keyInfo->mEvent.mMessage != eKeyDown) ||
+      NS_WARN_IF(aType.EqualsLiteral("keyup") &&
+                 keyInfo->mEvent.mMessage != eKeyUp)) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  // The value of defaultPrevented depends on whether or not
+  // the key is consumed by input-method-app
+  SetDefaultPrevented(keyInfo->mEvent, aDefaultPrevented);
+
+  // Set the flag to specify the reply phase
+  keyInfo->mEvent.mInputMethodAppState = WidgetKeyboardEvent::eHandled;
+
+  // Check whether the event is still valid to be fired
+  if (CanDispatchEvent(keyInfo->mTarget, keyInfo->mEvent)) {
+    // If the key's defaultPrevented is true, it means that the
+    // input-method-app has already consumed this key,
+    // so we can dispatch |mozbrowserafterkey*| directly if
+    // preference "dom.beforeAfterKeyboardEvent.enabled" is enabled.
+    if (keyInfo->mEvent.mFlags.mDefaultPrevented) {
+      DispatchAfterKeyEvent(keyInfo->mTarget, keyInfo->mEvent);
+    // Otherwise, it means that input-method-app doesn't handle this key,
+    // so we need to dispatch it to its current event target.
+    } else {
+      DispatchToTargetApp(keyInfo->mTarget,
+                          keyInfo->mEvent,
+                          keyInfo->mStatus);
+    }
+  }
+
+  // No need to do further processing if the event is not keydown
+  if (keyInfo->mEvent.mMessage != eKeyDown) {
+    return NS_OK;
+  }
+
+  // Update the latest keydown data:
+  //   Release the holding reference to the previous keydown's data and
+  //   add a reference count to the current keydown's data.
+  mLatestKeyDownInfo = keyInfo;
+
+  // Handle the pending keypress event once keydown's reply arrives:
+  // It may have many keypress events per keydown on some platforms,
+  // so we use loop to dispatch keypress events.
+  // (But Gonk dispatch only one keypress per keydown)
+  // However, if there is no keypress after this keydown,
+  // then those following keypress will be handled in
+  // ForwardKeyToInputMethodApp directly.
+  for (KeyboardInfo* keypressInfo;
+       !mEventQueue.IsEmpty() &&
+       (keypressInfo = mEventQueue.PeekFront()) &&
+       keypressInfo->mEvent.mMessage == eKeyPress;
+       mEventQueue.RemoveFront()) {
+    DispatchKeyPress(keypressInfo->mTarget,
+                     keypressInfo->mEvent,
+                     keypressInfo->mStatus);
+  }
+
+  return NS_OK;
+}
+
+bool
+HardwareKeyHandler::DispatchKeyPress(nsINode* aTarget,
+                                     WidgetKeyboardEvent& aEvent,
+                                     nsEventStatus& aStatus)
+{
+  MOZ_ASSERT(aTarget, "No target provided");
+  MOZ_ASSERT(aEvent.mMessage == eKeyPress, "Event is not keypress");
+
+  // No need to dispatch keypress to the event target
+  // if the keydown event is consumed by the input-method-app.
+  if (mLatestKeyDownInfo &&
+      mLatestKeyDownInfo->mEvent.mFlags.mDefaultPrevented) {
+    return false;
+  }
+
+  // No need to dispatch keypress to the event target
+  // if the previous keydown event is modifier key's
+  if (mLatestKeyDownInfo &&
+      mLatestKeyDownInfo->mEvent.IsModifierKeyEvent()) {
+    return false;
+  }
+
+  // No need to dispatch keypress to the event target
+  // if it's invalid to be dispatched
+  if (!CanDispatchEvent(aTarget, aEvent)) {
+    return false;
+  }
+
+  // Set the flag to specify the reply phase.
+  aEvent.mInputMethodAppState = WidgetKeyboardEvent::eHandled;
+
+  // Dispatch the pending keypress event
+  bool ret = DispatchToTargetApp(aTarget, aEvent, aStatus);
+
+  // Re-trigger EventStateManager::PostHandleKeyboardEvent for keypress
+  PostHandleKeyboardEvent(aTarget, aEvent, aStatus);
+
+  return ret;
+}
+
+void
+HardwareKeyHandler::DispatchAfterKeyEvent(nsINode* aTarget,
+                                          WidgetKeyboardEvent& aEvent)
+{
+  MOZ_ASSERT(aTarget, "No target provided");
+
+  if (!PresShell::BeforeAfterKeyboardEventEnabled() ||
+      aEvent.mMessage == eKeyPress) {
+    return;
+  }
+
+  nsCOMPtr<nsIPresShell> presShell = GetPresShell(aTarget);
+  if (NS_WARN_IF(presShell)) {
+    presShell->DispatchAfterKeyboardEvent(aTarget,
+                                          aEvent,
+                                          aEvent.mFlags.mDefaultPrevented);
+  }
+}
+
+bool
+HardwareKeyHandler::DispatchToTargetApp(nsINode* aTarget,
+                                        WidgetKeyboardEvent& aEvent,
+                                        nsEventStatus& aStatus)
+{
+  MOZ_ASSERT(aTarget, "No target provided");
+
+  // Get current focused element as the event target
+  nsCOMPtr<nsIContent> currentTarget = GetCurrentTarget();
+  if (NS_WARN_IF(!currentTarget)) {
+    return false;
+  }
+
+  // The event target should be set to the current focused element.
+  // However, it might have security issue if the event is dispatched to
+  // the unexpected application, and it might cause unexpected operation
+  // in the new app.
+  nsCOMPtr<nsPIDOMWindowOuter> originalRootWindow = GetRootWindow(aTarget);
+  nsCOMPtr<nsPIDOMWindowOuter> currentRootWindow = GetRootWindow(currentTarget);
+  if (currentRootWindow != originalRootWindow) {
+    NS_WARNING("The root window is changed during the event is dispatching");
+    return false;
+  }
+
+  // If the current focused element is still in the same app,
+  // then we can use it as the current target to dispatch event.
+  nsCOMPtr<nsIPresShell> presShell = GetPresShell(currentTarget);
+  if (!presShell) {
+    return false;
+  }
+
+  if (!presShell->CanDispatchEvent(&aEvent)) {
+    return false;
+  }
+
+  // In-process case: the event target is in the current process
+  if (!PresShell::IsTargetIframe(currentTarget)) {
+    DispatchToCurrentProcess(presShell, currentTarget, aEvent, aStatus);
+
+    if (presShell->CanDispatchEvent(&aEvent)) {
+      DispatchAfterKeyEvent(aTarget, aEvent);
+    }
+
+    return true;
+  }
+
+  // OOP case: the event target is in the child process
+  return DispatchToCrossProcess(aTarget, aEvent);
+
+  // After the oop target receives the event from TabChild::RecvRealKeyEvent
+  // and return the result through TabChild::SendDispatchAfterKeyboardEvent,
+  // the |mozbrowserafterkey*| will be fired from
+  // TabParent::RecvDispatchAfterKeyboardEvent, so we don't need to dispatch
+  // |mozbrowserafterkey*| by ourselves in this module.
+}
+
+void
+HardwareKeyHandler::DispatchToCurrentProcess(nsIPresShell* presShell,
+                                             nsIContent* aTarget,
+                                             WidgetKeyboardEvent& aEvent,
+                                             nsEventStatus& aStatus)
+{
+  EventDispatcher::Dispatch(aTarget, presShell->GetPresContext(),
+                            &aEvent, nullptr, &aStatus, nullptr);
+}
+
+bool
+HardwareKeyHandler::DispatchToCrossProcess(nsINode* aTarget,
+                                           WidgetKeyboardEvent& aEvent)
+{
+  nsCOMPtr<nsIFrameLoaderOwner> remoteLoaderOwner = do_QueryInterface(aTarget);
+  if (NS_WARN_IF(!remoteLoaderOwner)) {
+    return false;
+  }
+
+  RefPtr<nsFrameLoader> remoteFrameLoader =
+    remoteLoaderOwner->GetFrameLoader();
+  if (NS_WARN_IF(!remoteFrameLoader)) {
+    return false;
+  }
+
+  uint32_t eventMode;
+  remoteFrameLoader->GetEventMode(&eventMode);
+  if (eventMode == nsIFrameLoader::EVENT_MODE_DONT_FORWARD_TO_CHILD) {
+    return false;
+  }
+
+  PBrowserParent* remoteBrowser = remoteFrameLoader->GetRemoteBrowser();
+  TabParent* remote = static_cast<TabParent*>(remoteBrowser);
+  if (NS_WARN_IF(!remote)) {
+    return false;
+  }
+
+  return remote->SendRealKeyEvent(aEvent);
+}
+
+void
+HardwareKeyHandler::PostHandleKeyboardEvent(nsINode* aTarget,
+                                            WidgetKeyboardEvent& aEvent,
+                                            nsEventStatus& aStatus)
+{
+  MOZ_ASSERT(aTarget, "No target provided");
+
+  nsPresContext* presContext = GetPresContext(aTarget);
+
+  RefPtr<mozilla::EventStateManager> esm = presContext->EventStateManager();
+  bool dispatchedToChildProcess = PresShell::IsTargetIframe(aTarget);
+  esm->PostHandleKeyboardEvent(&aEvent, aStatus, dispatchedToChildProcess);
+}
+
+void
+HardwareKeyHandler::SetDefaultPrevented(WidgetKeyboardEvent& aEvent,
+                                        uint16_t aDefaultPrevented) {
+  if (aDefaultPrevented & DEFAULT_PREVENTED) {
+    aEvent.mFlags.mDefaultPrevented = true;
+  }
+
+  if (aDefaultPrevented & DEFAULT_PREVENTED_BY_CHROME) {
+    aEvent.mFlags.mDefaultPreventedByChrome = true;
+  }
+
+  if (aDefaultPrevented & DEFAULT_PREVENTED_BY_CONTENT) {
+    aEvent.mFlags.mDefaultPreventedByContent = true;
+  }
+}
+
+bool
+HardwareKeyHandler::CanDispatchEvent(nsINode* aTarget,
+                                     WidgetKeyboardEvent& aEvent)
+{
+  nsCOMPtr<nsIPresShell> presShell = GetPresShell(aTarget);
+  if (NS_WARN_IF(!presShell)) {
+    return false;
+  }
+  return presShell->CanDispatchEvent(&aEvent);
+}
+
+already_AddRefed<nsPIDOMWindowOuter>
+HardwareKeyHandler::GetRootWindow(nsINode* aNode)
+{
+  // Get nsIPresShell's pointer first
+  nsCOMPtr<nsIPresShell> presShell = GetPresShell(aNode);
+  if (NS_WARN_IF(!presShell)) {
+    return nullptr;
+  }
+  nsCOMPtr<nsPIDOMWindowOuter> rootWindow = presShell->GetRootWindow();
+  return rootWindow.forget();
+}
+
+already_AddRefed<nsIContent>
+HardwareKeyHandler::GetCurrentTarget()
+{
+  nsFocusManager* fm = nsFocusManager::GetFocusManager();
+  if (NS_WARN_IF(!fm)) {
+    return nullptr;
+  }
+
+  nsCOMPtr<mozIDOMWindowProxy> focusedWindow;
+  fm->GetFocusedWindow(getter_AddRefs(focusedWindow));
+  if (NS_WARN_IF(!focusedWindow)) {
+    return nullptr;
+  }
+
+  auto* ourWindow = nsPIDOMWindowOuter::From(focusedWindow);
+
+  nsCOMPtr<nsPIDOMWindowOuter> rootWindow = ourWindow->GetPrivateRoot();
+  if (NS_WARN_IF(!rootWindow)) {
+    return nullptr;
+  }
+
+  nsCOMPtr<nsPIDOMWindowOuter> focusedFrame;
+  nsCOMPtr<nsIContent> focusedContent =
+    fm->GetFocusedDescendant(rootWindow, true, getter_AddRefs(focusedFrame));
+
+  // If there is no focus, then we use document body instead
+  if (NS_WARN_IF(!focusedContent || !focusedContent->GetPrimaryFrame())) {
+    nsIDocument* document = ourWindow->GetExtantDoc();
+    if (NS_WARN_IF(!document)) {
+      return nullptr;
+    }
+
+    focusedContent = document->GetRootElement();
+
+    nsCOMPtr<nsIDOMHTMLDocument> htmlDocument = do_QueryInterface(document);
+    if (htmlDocument) {
+      nsCOMPtr<nsIDOMHTMLElement> body;
+      htmlDocument->GetBody(getter_AddRefs(body));
+      nsCOMPtr<nsIContent> bodyContent = do_QueryInterface(body);
+      if (bodyContent) {
+        focusedContent = bodyContent;
+      }
+    }
+  }
+
+  return focusedContent ? focusedContent.forget() : nullptr;
+}
+
+nsPresContext*
+HardwareKeyHandler::GetPresContext(nsINode* aNode)
+{
+  // Get nsIPresShell's pointer first
+  nsCOMPtr<nsIPresShell> presShell = GetPresShell(aNode);
+  if (NS_WARN_IF(!presShell)) {
+    return nullptr;
+  }
+
+  // then use nsIPresShell to get nsPresContext's pointer
+  return presShell->GetPresContext();
+}
+
+already_AddRefed<nsIPresShell>
+HardwareKeyHandler::GetPresShell(nsINode* aNode)
+{
+  nsIDocument* doc = aNode->OwnerDoc();
+  if (NS_WARN_IF(!doc)) {
+    return nullptr;
+  }
+
+  nsCOMPtr<nsIPresShell> presShell = doc->GetShell();
+  if (NS_WARN_IF(!presShell)) {
+    return nullptr;
+  }
+
+  return presShell.forget();
+}
+
+/* static */
+already_AddRefed<HardwareKeyHandler>
+HardwareKeyHandler::GetInstance()
+{
+  if (!XRE_IsParentProcess()) {
+    return nullptr;
+  }
+
+  if (!sInstance) {
+    sInstance = new HardwareKeyHandler();
+    ClearOnShutdown(&sInstance);
+  }
+
+  RefPtr<HardwareKeyHandler> service = sInstance.get();
+  return service.forget();
+}
+
+} // namespace mozilla
diff --git a/dom/inputmethod/HardwareKeyHandler.h b/dom/inputmethod/HardwareKeyHandler.h
new file mode 100644
index 000000000..7520c40cd
--- /dev/null
+++ b/dom/inputmethod/HardwareKeyHandler.h
@@ -0,0 +1,224 @@
+/* -*- 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/. */
+
+#ifndef mozilla_HardwareKeyHandler_h_
+#define mozilla_HardwareKeyHandler_h_
+
+#include "mozilla/EventForwards.h"          // for nsEventStatus
+#include "mozilla/StaticPtr.h"
+#include "mozilla/TextEvents.h"
+#include "nsCOMPtr.h"
+#include "nsDeque.h"
+#include "nsIHardwareKeyHandler.h"
+#include "nsIWeakReferenceUtils.h"          // for nsWeakPtr
+
+class nsIContent;
+class nsINode;
+class nsIPresShell;
+class nsPIDOMWindowOuter;
+class nsPresContext;
+
+namespace mozilla {
+
+// This module will copy the events' data into its event queue for reuse
+// after receiving input-method-app's reply, so we use the following struct
+// for storing these information.
+// RefCounted<T> is a helper class for adding reference counting mechanism.
+struct KeyboardInfo : public RefCounted<KeyboardInfo>
+{
+  MOZ_DECLARE_REFCOUNTED_TYPENAME(KeyboardInfo)
+
+  nsINode* mTarget;
+  WidgetKeyboardEvent mEvent;
+  nsEventStatus mStatus;
+
+  KeyboardInfo(nsINode* aTarget,
+               WidgetKeyboardEvent& aEvent,
+               nsEventStatus aStatus)
+    : mTarget(aTarget)
+    , mEvent(aEvent)
+    , mStatus(aStatus)
+  {
+  }
+};
+
+// The following is the type-safe wrapper around nsDeque
+// for storing events' data.
+// The T must be one class that supports reference counting mechanism.
+// The EventQueueDeallocator will be called in nsDeque::~nsDeque() or
+// nsDeque::Erase() to deallocate the objects. nsDeque::Erase() will remove
+// and delete all items in the queue. See more from nsDeque.h.
+template <class T>
+class EventQueueDeallocator : public nsDequeFunctor
+{
+  virtual void* operator() (void* aObject)
+  {
+    RefPtr<T> releaseMe = dont_AddRef(static_cast<T*>(aObject));
+    return nullptr;
+  }
+};
+
+// The type-safe queue to be used to store the KeyboardInfo data
+template <class T>
+class EventQueue : private nsDeque
+{
+public:
+  EventQueue()
+    : nsDeque(new EventQueueDeallocator<T>())
+  {
+  };
+
+  ~EventQueue()
+  {
+    Clear();
+  }
+
+  inline size_t GetSize()
+  {
+    return nsDeque::GetSize();
+  }
+
+  bool IsEmpty()
+  {
+    return !nsDeque::GetSize();
+  }
+
+  inline bool Push(T* aItem)
+  {
+    MOZ_ASSERT(aItem);
+    NS_ADDREF(aItem);
+    size_t sizeBefore = GetSize();
+    nsDeque::Push(aItem);
+    if (GetSize() != sizeBefore + 1) {
+      NS_RELEASE(aItem);
+      return false;
+    }
+    return true;
+  }
+
+  inline already_AddRefed<T> PopFront()
+  {
+    RefPtr<T> rv = dont_AddRef(static_cast<T*>(nsDeque::PopFront()));
+    return rv.forget();
+  }
+
+  inline void RemoveFront()
+  {
+    RefPtr<T> releaseMe = PopFront();
+  }
+
+  inline T* PeekFront()
+  {
+    return static_cast<T*>(nsDeque::PeekFront());
+  }
+
+  void Clear()
+  {
+    while (GetSize() > 0) {
+      RemoveFront();
+    }
+  }
+};
+
+class HardwareKeyHandler : public nsIHardwareKeyHandler
+{
+public:
+  HardwareKeyHandler();
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIHARDWAREKEYHANDLER
+
+  static already_AddRefed<HardwareKeyHandler> GetInstance();
+
+  virtual bool ForwardKeyToInputMethodApp(nsINode* aTarget,
+                                          WidgetKeyboardEvent* aEvent,
+                                          nsEventStatus* aEventStatus) override;
+
+private:
+  virtual ~HardwareKeyHandler();
+
+  // Return true if the keypress is successfully dispatched.
+  // Otherwise, return false.
+  bool DispatchKeyPress(nsINode* aTarget,
+                        WidgetKeyboardEvent& aEvent,
+                        nsEventStatus& aStatus);
+
+  void DispatchAfterKeyEvent(nsINode* aTarget, WidgetKeyboardEvent& aEvent);
+
+  void DispatchToCurrentProcess(nsIPresShell* aPresShell,
+                                nsIContent* aTarget,
+                                WidgetKeyboardEvent& aEvent,
+                                nsEventStatus& aStatus);
+
+  bool DispatchToCrossProcess(nsINode* aTarget, WidgetKeyboardEvent& aEvent);
+
+  // This method will dispatch not only key* event to its event target,
+  // no mather it's in the current process or in its child process,
+  // but also mozbrowserafterkey* to the corresponding target if it needs.
+  // Return true if the key is successfully dispatched.
+  // Otherwise, return false.
+  bool DispatchToTargetApp(nsINode* aTarget,
+                           WidgetKeyboardEvent& aEvent,
+                           nsEventStatus& aStatus);
+
+  // This method will be called after dispatching keypress to its target,
+  // if the input-method-app doesn't handle the key.
+  // In normal dispatching path, EventStateManager::PostHandleKeyboardEvent
+  // will be called when event is keypress.
+  // However, the ::PostHandleKeyboardEvent mentioned above will be aborted
+  // when we try to forward key event to the input-method-app.
+  // If the input-method-app consumes the key, then we don't need to do anything
+  // because the input-method-app will generate a new key event by itself.
+  // On the other hand, if the input-method-app doesn't consume the key,
+  // then we need to dispatch the key event by ourselves
+  // and call ::PostHandleKeyboardEvent again after the event is forwarded.
+  // Note that the EventStateManager::PreHandleEvent is already called before
+  // forwarding, so we don't need to call it in this module.
+  void PostHandleKeyboardEvent(nsINode* aTarget,
+                               WidgetKeyboardEvent& aEvent,
+                               nsEventStatus& aStatus);
+
+  void SetDefaultPrevented(WidgetKeyboardEvent& aEvent,
+                           uint16_t aDefaultPrevented);
+
+  // Check whether the event is valid to be fired.
+  // This method should be called every time before dispatching next event.
+  bool CanDispatchEvent(nsINode* aTarget,
+                        WidgetKeyboardEvent& aEvent);
+
+  already_AddRefed<nsPIDOMWindowOuter> GetRootWindow(nsINode* aNode);
+
+  already_AddRefed<nsIContent> GetCurrentTarget();
+
+  nsPresContext* GetPresContext(nsINode* aNode);
+
+  already_AddRefed<nsIPresShell> GetPresShell(nsINode* aNode);
+
+  static StaticRefPtr<HardwareKeyHandler> sInstance;
+
+  // The event queue is used to store the forwarded keyboard events.
+  // Those stored events will be dispatched if input-method-app doesn't
+  // consume them.
+  EventQueue<KeyboardInfo> mEventQueue;
+
+  // Hold the pointer to the latest keydown's data
+  RefPtr<KeyboardInfo> mLatestKeyDownInfo;
+
+  // input-method-app needs to register a listener by
+  // |nsIHardwareKeyHandler.registerListener| to receive
+  // the hardware keyboard event, and |nsIHardwareKeyHandler.registerListener|
+  // will set an nsIHardwareKeyEventListener to mHardwareKeyEventListener.
+  // Then, mHardwareKeyEventListener is used to forward the event
+  // to the input-method-app.
+  nsWeakPtr mHardwareKeyEventListener;
+
+  // To keep tracking the input-method-app is active or disabled.
+  bool mInputMethodAppConnected;
+};
+
+} // namespace mozilla
+
+#endif // #ifndef mozilla_HardwareKeyHandler_h_
diff --git a/dom/inputmethod/InputMethod.manifest b/dom/inputmethod/InputMethod.manifest
new file mode 100644
index 000000000..5dc073508
--- /dev/null
+++ b/dom/inputmethod/InputMethod.manifest
@@ -0,0 +1,2 @@
+component {4607330d-e7d2-40a4-9eb8-43967eae0142} MozKeyboard.js
+contract @mozilla.org/b2g-inputmethod;1 {4607330d-e7d2-40a4-9eb8-43967eae0142}
diff --git a/dom/inputmethod/Keyboard.jsm b/dom/inputmethod/Keyboard.jsm
new file mode 100644
index 000000000..22f87ffbc
--- /dev/null
+++ b/dom/inputmethod/Keyboard.jsm
@@ -0,0 +1,644 @@
+/* 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/. */
+
+'use strict';
+
+this.EXPORTED_SYMBOLS = ['Keyboard'];
+
+const Cu = Components.utils;
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+
+Cu.import('resource://gre/modules/Services.jsm');
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+
+XPCOMUtils.defineLazyServiceGetter(this, "ppmm",
+  "@mozilla.org/parentprocessmessagemanager;1", "nsIMessageBroadcaster");
+
+XPCOMUtils.defineLazyModuleGetter(this, "SystemAppProxy",
+                                  "resource://gre/modules/SystemAppProxy.jsm");
+
+XPCOMUtils.defineLazyGetter(this, "appsService", function() {
+  return Cc["@mozilla.org/AppsService;1"].getService(Ci.nsIAppsService);
+});
+
+XPCOMUtils.defineLazyGetter(this, "hardwareKeyHandler", function() {
+#ifdef MOZ_B2G
+  return Cc["@mozilla.org/HardwareKeyHandler;1"]
+         .getService(Ci.nsIHardwareKeyHandler);
+#else
+  return null;
+#endif
+});
+
+var Utils = {
+  getMMFromMessage: function u_getMMFromMessage(msg) {
+    let mm;
+    try {
+      mm = msg.target.QueryInterface(Ci.nsIFrameLoaderOwner)
+                     .frameLoader.messageManager;
+    } catch(e) {
+      mm = msg.target;
+    }
+
+    return mm;
+  },
+  checkPermissionForMM: function u_checkPermissionForMM(mm, permName) {
+    return mm.assertPermission(permName);
+  }
+};
+
+this.Keyboard = {
+#ifdef MOZ_B2G
+  // For receving keyboard event fired from hardware before it's dispatched,
+  // |this| object is used to be the listener to get the forwarded event.
+  // As the listener, |this| object must implement nsIHardwareKeyEventListener
+  // and nsSupportsWeakReference.
+  // Please see nsIHardwareKeyHandler.idl to get more information.
+  QueryInterface: XPCOMUtils.generateQI([
+    Ci.nsIHardwareKeyEventListener,
+    Ci.nsISupportsWeakReference
+  ]),
+#endif
+  _isConnectedToHardwareKeyHandler: false,
+  _formMM: null,      // The current web page message manager.
+  _keyboardMM: null,  // The keyboard app message manager.
+  _keyboardID: -1,    // The keyboard app's ID number. -1 = invalid
+  _nextKeyboardID: 0, // The ID number counter.
+  _systemMMs: [],     // The message managers registered to handle system async
+                      // messages.
+  _supportsSwitchingTypes: [],
+  _systemMessageNames: [
+    'SetValue', 'RemoveFocus', 'SetSelectedOption', 'SetSelectedOptions',
+    'SetSupportsSwitchingTypes', 'RegisterSync', 'Unregister'
+  ],
+
+  _messageNames: [
+    'RemoveFocus',
+    'SetSelectionRange', 'ReplaceSurroundingText', 'ShowInputMethodPicker',
+    'SwitchToNextInputMethod', 'HideInputMethod',
+    'SendKey', 'GetContext',
+    'SetComposition', 'EndComposition',
+    'RegisterSync', 'Unregister',
+    'ReplyHardwareKeyEvent'
+  ],
+
+  get formMM() {
+    if (this._formMM && !Cu.isDeadWrapper(this._formMM))
+      return this._formMM;
+
+    return null;
+  },
+
+  set formMM(mm) {
+    this._formMM = mm;
+  },
+
+  sendToForm: function(name, data) {
+    if (!this.formMM) {
+      dump("Keyboard.jsm: Attempt to send message " + name +
+        " to form but no message manager exists.\n");
+
+      return;
+    }
+    try {
+      this.formMM.sendAsyncMessage(name, data);
+    } catch(e) { }
+  },
+
+  sendToKeyboard: function(name, data) {
+    try {
+      this._keyboardMM.sendAsyncMessage(name, data);
+    } catch(e) {
+      return false;
+    }
+    return true;
+  },
+
+  sendToSystem: function(name, data) {
+    if (!this._systemMMs.length) {
+      dump("Keyboard.jsm: Attempt to send message " + name +
+        " to system but no message manager registered.\n");
+
+      return;
+    }
+
+    this._systemMMs.forEach((mm, i) => {
+      data.inputManageId = i;
+      mm.sendAsyncMessage(name, data);
+    });
+  },
+
+  init: function keyboardInit() {
+    Services.obs.addObserver(this, 'inprocess-browser-shown', false);
+    Services.obs.addObserver(this, 'remote-browser-shown', false);
+    Services.obs.addObserver(this, 'oop-frameloader-crashed', false);
+    Services.obs.addObserver(this, 'message-manager-close', false);
+
+    // For receiving the native hardware keyboard event
+    if (hardwareKeyHandler) {
+      hardwareKeyHandler.registerListener(this);
+    }
+
+    for (let name of this._messageNames) {
+      ppmm.addMessageListener('Keyboard:' + name, this);
+    }
+
+    for (let name of this._systemMessageNames) {
+      ppmm.addMessageListener('System:' + name, this);
+    }
+
+    this.inputRegistryGlue = new InputRegistryGlue();
+  },
+
+  // This method will be registered into nsIHardwareKeyHandler:
+  // Send the initialized dictionary retrieved from the native keyboard event
+  // to input-method-app for generating a new event.
+  onHardwareKey: function onHardwareKeyReceived(evt) {
+    return this.sendToKeyboard('Keyboard:ReceiveHardwareKeyEvent', {
+      type: evt.type,
+      keyDict: evt.initDict
+    });
+  },
+
+  observe: function keyboardObserve(subject, topic, data) {
+    let frameLoader = null;
+    let mm = null;
+
+    if (topic == 'message-manager-close') {
+      mm = subject;
+    } else {
+      frameLoader = subject.QueryInterface(Ci.nsIFrameLoader);
+      mm = frameLoader.messageManager;
+    }
+
+    if (topic == 'oop-frameloader-crashed' ||
+	      topic == 'message-manager-close') {
+      if (this.formMM == mm) {
+        // The application has been closed unexpectingly. Let's tell the
+        // keyboard app that the focus has been lost.
+        this.sendToKeyboard('Keyboard:Blur', {});
+        // Notify system app to hide keyboard.
+        this.sendToSystem('System:Blur', {});
+        // XXX: To be removed when content migrate away from mozChromeEvents.
+        SystemAppProxy.dispatchEvent({
+          type: 'inputmethod-contextchange',
+          inputType: 'blur'
+        });
+
+        this.formMM = null;
+      }
+    } else {
+      // Ignore notifications that aren't from a BrowserOrApp
+      if (!frameLoader.ownerIsMozBrowserOrAppFrame) {
+        return;
+      }
+      this.initFormsFrameScript(mm);
+    }
+  },
+
+  initFormsFrameScript: function(mm) {
+    mm.addMessageListener('Forms:Focus', this);
+    mm.addMessageListener('Forms:Blur', this);
+    mm.addMessageListener('Forms:SelectionChange', this);
+    mm.addMessageListener('Forms:SetSelectionRange:Result:OK', this);
+    mm.addMessageListener('Forms:SetSelectionRange:Result:Error', this);
+    mm.addMessageListener('Forms:ReplaceSurroundingText:Result:OK', this);
+    mm.addMessageListener('Forms:ReplaceSurroundingText:Result:Error', this);
+    mm.addMessageListener('Forms:SendKey:Result:OK', this);
+    mm.addMessageListener('Forms:SendKey:Result:Error', this);
+    mm.addMessageListener('Forms:SequenceError', this);
+    mm.addMessageListener('Forms:GetContext:Result:OK', this);
+    mm.addMessageListener('Forms:SetComposition:Result:OK', this);
+    mm.addMessageListener('Forms:EndComposition:Result:OK', this);
+  },
+
+  receiveMessage: function keyboardReceiveMessage(msg) {
+    // If we get a 'Keyboard:XXX'/'System:XXX' message, check that the sender
+    // has the required permission.
+    let mm;
+
+    // Assert the permission based on the prefix of the message.
+    let permName;
+    if (msg.name.startsWith("Keyboard:")) {
+      permName = "input";
+    } else if (msg.name.startsWith("System:")) {
+      permName = "input-manage";
+    }
+
+    // There is no permission to check (nor we need to get the mm)
+    // for Form: messages.
+    if (permName) {
+      mm = Utils.getMMFromMessage(msg);
+      if (!mm) {
+        dump("Keyboard.jsm: Message " + msg.name + " has no message manager.");
+        return;
+      }
+      if (!Utils.checkPermissionForMM(mm, permName)) {
+        dump("Keyboard.jsm: Message " + msg.name +
+          " from a content process with no '" + permName + "' privileges.\n");
+        return;
+      }
+    }
+
+    // we don't process kb messages (other than register)
+    // if they come from a kb that we're currently not regsitered for.
+    // this decision is made with the kbID kept by us and kb app
+    let kbID = null;
+    if ('kbID' in msg.data) {
+      kbID = msg.data.kbID;
+    }
+
+    if (0 === msg.name.indexOf('Keyboard:') &&
+        ('Keyboard:RegisterSync' !== msg.name && this._keyboardID !== kbID)
+       ) {
+      return;
+    }
+
+    switch (msg.name) {
+      case 'Forms:Focus':
+        this.handleFocus(msg);
+        break;
+      case 'Forms:Blur':
+        this.handleBlur(msg);
+        break;
+      case 'Forms:SelectionChange':
+      case 'Forms:SetSelectionRange:Result:OK':
+      case 'Forms:ReplaceSurroundingText:Result:OK':
+      case 'Forms:SendKey:Result:OK':
+      case 'Forms:SendKey:Result:Error':
+      case 'Forms:SequenceError':
+      case 'Forms:GetContext:Result:OK':
+      case 'Forms:SetComposition:Result:OK':
+      case 'Forms:EndComposition:Result:OK':
+      case 'Forms:SetSelectionRange:Result:Error':
+      case 'Forms:ReplaceSurroundingText:Result:Error':
+        let name = msg.name.replace(/^Forms/, 'Keyboard');
+        this.forwardEvent(name, msg);
+        break;
+
+      case 'System:SetValue':
+        this.setValue(msg);
+        break;
+      case 'Keyboard:RemoveFocus':
+      case 'System:RemoveFocus':
+        this.removeFocus();
+        break;
+      case 'System:RegisterSync': {
+        if (this._systemMMs.length !== 0) {
+          dump('Keyboard.jsm Warning: There are more than one content page ' +
+            'with input-manage permission. There will be undeterministic ' +
+            'responses to addInput()/removeInput() if both content pages are ' +
+            'trying to respond to the same request event.\n');
+        }
+
+        let id = this._systemMMs.length;
+        this._systemMMs.push(mm);
+
+        return id;
+      }
+
+      case 'System:Unregister':
+        this._systemMMs.splice(msg.data.id, 1);
+
+        break;
+      case 'System:SetSelectedOption':
+        this.setSelectedOption(msg);
+        break;
+      case 'System:SetSelectedOptions':
+        this.setSelectedOption(msg);
+        break;
+      case 'System:SetSupportsSwitchingTypes':
+        this.setSupportsSwitchingTypes(msg);
+        break;
+      case 'Keyboard:SetSelectionRange':
+        this.setSelectionRange(msg);
+        break;
+      case 'Keyboard:ReplaceSurroundingText':
+        this.replaceSurroundingText(msg);
+        break;
+      case 'Keyboard:SwitchToNextInputMethod':
+        this.switchToNextInputMethod();
+        break;
+      case 'Keyboard:ShowInputMethodPicker':
+        this.showInputMethodPicker();
+        break;
+      case 'Keyboard:SendKey':
+        this.sendKey(msg);
+        break;
+      case 'Keyboard:GetContext':
+        this.getContext(msg);
+        break;
+      case 'Keyboard:SetComposition':
+        this.setComposition(msg);
+        break;
+      case 'Keyboard:EndComposition':
+        this.endComposition(msg);
+        break;
+      case 'Keyboard:RegisterSync':
+        this._keyboardMM = mm;
+        if (kbID) {
+          // keyboard identifies itself, use its kbID
+          // this msg would be async, so no need to return
+          this._keyboardID = kbID;
+        }else{
+          // generate the id for the keyboard
+          this._keyboardID = this._nextKeyboardID;
+          this._nextKeyboardID++;
+          // this msg is sync,
+          // and we want to return the id back to inputmethod
+          return this._keyboardID;
+        }
+        break;
+      case 'Keyboard:Unregister':
+        this._keyboardMM = null;
+        this._keyboardID = -1;
+        break;
+      case 'Keyboard:ReplyHardwareKeyEvent':
+        if (hardwareKeyHandler) {
+          let reply = msg.data;
+          hardwareKeyHandler.onHandledByInputMethodApp(reply.type,
+                                                       reply.defaultPrevented);
+        }
+        break;
+    }
+  },
+
+  handleFocus: function keyboardHandleFocus(msg) {
+    // Set the formMM to the new message manager received.
+    let mm = msg.target.QueryInterface(Ci.nsIFrameLoaderOwner)
+                .frameLoader.messageManager;
+    this.formMM = mm;
+
+    // Notify the nsIHardwareKeyHandler that the input-method-app is active now.
+    if (hardwareKeyHandler && !this._isConnectedToHardwareKeyHandler) {
+      this._isConnectedToHardwareKeyHandler = true;
+      hardwareKeyHandler.onInputMethodAppConnected();
+    }
+
+    // Notify the current active input app to gain focus.
+    this.forwardEvent('Keyboard:Focus', msg);
+
+    // Notify System app, used also to render value selectors for now;
+    // that's why we need the info about choices / min / max here as well...
+    this.sendToSystem('System:Focus', msg.data);
+
+    // XXX: To be removed when content migrate away from mozChromeEvents.
+    SystemAppProxy.dispatchEvent({
+      type: 'inputmethod-contextchange',
+      inputType: msg.data.inputType,
+      value: msg.data.value,
+      choices: JSON.stringify(msg.data.choices),
+      min: msg.data.min,
+      max: msg.data.max
+    });
+  },
+
+  handleBlur: function keyboardHandleBlur(msg) {
+    let mm = msg.target.QueryInterface(Ci.nsIFrameLoaderOwner)
+                .frameLoader.messageManager;
+    // A blur message can't be sent to the keyboard if the focus has
+    // already been taken away at first place.
+    // This check is here to prevent problem caused by out-of-order
+    // ipc messages from two processes.
+    if (mm !== this.formMM) {
+      return;
+    }
+
+    // unset formMM
+    this.formMM = null;
+
+    // Notify the nsIHardwareKeyHandler that
+    // the input-method-app is disabled now.
+    if (hardwareKeyHandler && this._isConnectedToHardwareKeyHandler) {
+      this._isConnectedToHardwareKeyHandler = false;
+      hardwareKeyHandler.onInputMethodAppDisconnected();
+    }
+
+    this.forwardEvent('Keyboard:Blur', msg);
+    this.sendToSystem('System:Blur', {});
+
+    // XXX: To be removed when content migrate away from mozChromeEvents.
+    SystemAppProxy.dispatchEvent({
+      type: 'inputmethod-contextchange',
+      inputType: 'blur'
+    });
+  },
+
+  forwardEvent: function keyboardForwardEvent(newEventName, msg) {
+    this.sendToKeyboard(newEventName, msg.data);
+  },
+
+  setSelectedOption: function keyboardSetSelectedOption(msg) {
+    this.sendToForm('Forms:Select:Choice', msg.data);
+  },
+
+  setSelectedOptions: function keyboardSetSelectedOptions(msg) {
+    this.sendToForm('Forms:Select:Choice', msg.data);
+  },
+
+  setSelectionRange: function keyboardSetSelectionRange(msg) {
+    this.sendToForm('Forms:SetSelectionRange', msg.data);
+  },
+
+  setValue: function keyboardSetValue(msg) {
+    this.sendToForm('Forms:Input:Value', msg.data);
+  },
+
+  removeFocus: function keyboardRemoveFocus() {
+    if (!this.formMM) {
+      return;
+    }
+
+    this.sendToForm('Forms:Select:Blur', {});
+  },
+
+  replaceSurroundingText: function keyboardReplaceSurroundingText(msg) {
+    this.sendToForm('Forms:ReplaceSurroundingText', msg.data);
+  },
+
+  showInputMethodPicker: function keyboardShowInputMethodPicker() {
+    this.sendToSystem('System:ShowAll', {});
+
+    // XXX: To be removed with mozContentEvent support from shell.js
+    SystemAppProxy.dispatchEvent({
+      type: "inputmethod-showall"
+    });
+  },
+
+  switchToNextInputMethod: function keyboardSwitchToNextInputMethod() {
+    this.sendToSystem('System:Next', {});
+
+    // XXX: To be removed with mozContentEvent support from shell.js
+    SystemAppProxy.dispatchEvent({
+      type: "inputmethod-next"
+    });
+  },
+
+  sendKey: function keyboardSendKey(msg) {
+    this.sendToForm('Forms:Input:SendKey', msg.data);
+  },
+
+  getContext: function keyboardGetContext(msg) {
+    if (!this.formMM) {
+      return;
+    }
+
+    this.sendToKeyboard('Keyboard:SupportsSwitchingTypesChange', {
+      types: this._supportsSwitchingTypes
+    });
+
+    this.sendToForm('Forms:GetContext', msg.data);
+  },
+
+  setComposition: function keyboardSetComposition(msg) {
+    this.sendToForm('Forms:SetComposition', msg.data);
+  },
+
+  endComposition: function keyboardEndComposition(msg) {
+    this.sendToForm('Forms:EndComposition', msg.data);
+  },
+
+  setSupportsSwitchingTypes: function setSupportsSwitchingTypes(msg) {
+    this._supportsSwitchingTypes = msg.data.types;
+    this.sendToKeyboard('Keyboard:SupportsSwitchingTypesChange', msg.data);
+  },
+  // XXX: To be removed with mozContentEvent support from shell.js
+  setLayouts: function keyboardSetLayouts(layouts) {
+    // The input method plugins may not have loaded yet,
+    // cache the layouts so on init we can respond immediately instead
+    // of going back and forth between keyboard_manager
+    var types = [];
+
+    Object.keys(layouts).forEach((type) => {
+      if (layouts[type] > 1) {
+        types.push(type);
+      }
+    });
+
+    this._supportsSwitchingTypes = types;
+
+    this.sendToKeyboard('Keyboard:SupportsSwitchingTypesChange', {
+      types: types
+    });
+  }
+};
+
+function InputRegistryGlue() {
+  this._messageId = 0;
+  this._msgMap = new Map();
+
+  ppmm.addMessageListener('InputRegistry:Add', this);
+  ppmm.addMessageListener('InputRegistry:Remove', this);
+  ppmm.addMessageListener('System:InputRegistry:Add:Done', this);
+  ppmm.addMessageListener('System:InputRegistry:Remove:Done', this);
+};
+
+InputRegistryGlue.prototype.receiveMessage = function(msg) {
+  let mm = Utils.getMMFromMessage(msg);
+
+  let permName = msg.name.startsWith("System:") ? "input-mgmt" : "input";
+  if (!Utils.checkPermissionForMM(mm, permName)) {
+    dump("InputRegistryGlue message " + msg.name +
+      " from a content process with no " + permName + " privileges.");
+    return;
+  }
+
+  switch (msg.name) {
+    case 'InputRegistry:Add':
+      this.addInput(msg, mm);
+
+      break;
+
+    case 'InputRegistry:Remove':
+      this.removeInput(msg, mm);
+
+      break;
+
+    case 'System:InputRegistry:Add:Done':
+    case 'System:InputRegistry:Remove:Done':
+      this.returnMessage(msg.data);
+
+      break;
+  }
+};
+
+InputRegistryGlue.prototype.addInput = function(msg, mm) {
+  let msgId = this._messageId++;
+  this._msgMap.set(msgId, {
+    mm: mm,
+    requestId: msg.data.requestId
+  });
+
+  let manifestURL = appsService.getManifestURLByLocalId(msg.data.appId);
+
+  Keyboard.sendToSystem('System:InputRegistry:Add', {
+    id: msgId,
+    manifestURL: manifestURL,
+    inputId: msg.data.inputId,
+    inputManifest: msg.data.inputManifest
+  });
+
+  // XXX: To be removed when content migrate away from mozChromeEvents.
+  SystemAppProxy.dispatchEvent({
+    type: 'inputregistry-add',
+    id: msgId,
+    manifestURL: manifestURL,
+    inputId: msg.data.inputId,
+    inputManifest: msg.data.inputManifest
+  });
+};
+
+InputRegistryGlue.prototype.removeInput = function(msg, mm) {
+  let msgId = this._messageId++;
+  this._msgMap.set(msgId, {
+    mm: mm,
+    requestId: msg.data.requestId
+  });
+
+  let manifestURL = appsService.getManifestURLByLocalId(msg.data.appId);
+
+  Keyboard.sendToSystem('System:InputRegistry:Remove', {
+    id: msgId,
+    manifestURL: manifestURL,
+    inputId: msg.data.inputId
+  });
+
+  // XXX: To be removed when content migrate away from mozChromeEvents.
+  SystemAppProxy.dispatchEvent({
+    type: 'inputregistry-remove',
+    id: msgId,
+    manifestURL: manifestURL,
+    inputId: msg.data.inputId
+  });
+};
+
+InputRegistryGlue.prototype.returnMessage = function(detail) {
+  if (!this._msgMap.has(detail.id)) {
+    dump('InputRegistryGlue: Ignoring already handled message response. ' +
+         'id=' + detail.id + '\n');
+    return;
+  }
+
+  let { mm, requestId } = this._msgMap.get(detail.id);
+  this._msgMap.delete(detail.id);
+
+  if (Cu.isDeadWrapper(mm)) {
+    dump('InputRegistryGlue: Message manager has already died.\n');
+    return;
+  }
+
+  if (!('error' in detail)) {
+    mm.sendAsyncMessage('InputRegistry:Result:OK', {
+      requestId: requestId
+    });
+  } else {
+    mm.sendAsyncMessage('InputRegistry:Result:Error', {
+      error: detail.error,
+      requestId: requestId
+    });
+  }
+};
+
+this.Keyboard.init();
diff --git a/dom/inputmethod/MozKeyboard.js b/dom/inputmethod/MozKeyboard.js
new file mode 100644
index 000000000..3996f3e5d
--- /dev/null
+++ b/dom/inputmethod/MozKeyboard.js
@@ -0,0 +1,1255 @@
+/* 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/. */
+
+"use strict";
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cu = Components.utils;
+const Cr = Components.results;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/DOMRequestHelper.jsm");
+
+XPCOMUtils.defineLazyServiceGetter(this, "cpmm",
+  "@mozilla.org/childprocessmessagemanager;1", "nsISyncMessageSender");
+
+XPCOMUtils.defineLazyServiceGetter(this, "tm",
+  "@mozilla.org/thread-manager;1", "nsIThreadManager");
+
+/*
+ * A WeakMap to map input method iframe window to
+ * it's active status, kbID, and ipcHelper.
+ */
+var WindowMap = {
+  // WeakMap of <window, object> pairs.
+  _map: null,
+
+  /*
+   * Set the object associated to the window and return it.
+   */
+  _getObjForWin: function(win) {
+    if (!this._map) {
+      this._map = new WeakMap();
+    }
+    if (this._map.has(win)) {
+      return this._map.get(win);
+    } else {
+      let obj = {
+        active: false,
+        kbID: undefined,
+        ipcHelper: null
+      };
+      this._map.set(win, obj);
+
+      return obj;
+    }
+  },
+
+  /*
+   * Check if the given window is active.
+   */
+  isActive: function(win) {
+    if (!this._map || !win) {
+      return false;
+    }
+
+    return this._getObjForWin(win).active;
+  },
+
+  /*
+   * Set the active status of the given window.
+   */
+  setActive: function(win, isActive) {
+    if (!win) {
+      return;
+    }
+    let obj = this._getObjForWin(win);
+    obj.active = isActive;
+  },
+
+  /*
+   * Get the keyboard ID (assigned by Keyboard.jsm) of the given window.
+   */
+  getKbID: function(win) {
+    if (!this._map || !win) {
+      return undefined;
+    }
+
+    let obj = this._getObjForWin(win);
+    return obj.kbID;
+  },
+
+  /*
+   * Set the keyboard ID (assigned by Keyboard.jsm) of the given window.
+   */
+  setKbID: function(win, kbID) {
+    if (!win) {
+      return;
+    }
+    let obj = this._getObjForWin(win);
+    obj.kbID = kbID;
+  },
+
+  /*
+   * Get InputContextDOMRequestIpcHelper instance attached to this window.
+   */
+  getInputContextIpcHelper: function(win) {
+    if (!win) {
+      return;
+    }
+    let obj = this._getObjForWin(win);
+    if (!obj.ipcHelper) {
+      obj.ipcHelper = new InputContextDOMRequestIpcHelper(win);
+    }
+    return obj.ipcHelper;
+  },
+
+  /*
+   * Unset InputContextDOMRequestIpcHelper instance.
+   */
+  unsetInputContextIpcHelper: function(win) {
+    if (!win) {
+      return;
+    }
+    let obj = this._getObjForWin(win);
+    if (!obj.ipcHelper) {
+      return;
+    }
+    obj.ipcHelper = null;
+  }
+};
+
+var cpmmSendAsyncMessageWithKbID = function (self, msg, data) {
+  data.kbID = WindowMap.getKbID(self._window);
+  cpmm.sendAsyncMessage(msg, data);
+};
+
+/**
+ * ==============================================
+ * InputMethodManager
+ * ==============================================
+ */
+function MozInputMethodManager(win) {
+  this._window = win;
+}
+
+MozInputMethodManager.prototype = {
+  supportsSwitchingForCurrentInputContext: false,
+  _window: null,
+
+  classID: Components.ID("{7e9d7280-ef86-11e2-b778-0800200c9a66}"),
+
+  QueryInterface: XPCOMUtils.generateQI([]),
+
+  set oninputcontextfocus(handler) {
+    this.__DOM_IMPL__.setEventHandler("oninputcontextfocus", handler);
+  },
+
+  get oninputcontextfocus() {
+    return this.__DOM_IMPL__.getEventHandler("oninputcontextfocus");
+  },
+
+  set oninputcontextblur(handler) {
+    this.__DOM_IMPL__.setEventHandler("oninputcontextblur", handler);
+  },
+
+  get oninputcontextblur() {
+    return this.__DOM_IMPL__.getEventHandler("oninputcontextblur");
+  },
+
+  set onshowallrequest(handler) {
+    this.__DOM_IMPL__.setEventHandler("onshowallrequest", handler);
+  },
+
+  get onshowallrequest() {
+    return this.__DOM_IMPL__.getEventHandler("onshowallrequest");
+  },
+
+  set onnextrequest(handler) {
+    this.__DOM_IMPL__.setEventHandler("onnextrequest", handler);
+  },
+
+  get onnextrequest() {
+    return this.__DOM_IMPL__.getEventHandler("onnextrequest");
+  },
+
+  set onaddinputrequest(handler) {
+    this.__DOM_IMPL__.setEventHandler("onaddinputrequest", handler);
+  },
+
+  get onaddinputrequest() {
+    return this.__DOM_IMPL__.getEventHandler("onaddinputrequest");
+  },
+
+  set onremoveinputrequest(handler) {
+    this.__DOM_IMPL__.setEventHandler("onremoveinputrequest", handler);
+  },
+
+  get onremoveinputrequest() {
+    return this.__DOM_IMPL__.getEventHandler("onremoveinputrequest");
+  },
+
+  showAll: function() {
+    if (!WindowMap.isActive(this._window)) {
+      return;
+    }
+    cpmmSendAsyncMessageWithKbID(this, 'Keyboard:ShowInputMethodPicker', {});
+  },
+
+  next: function() {
+    if (!WindowMap.isActive(this._window)) {
+      return;
+    }
+    cpmmSendAsyncMessageWithKbID(this, 'Keyboard:SwitchToNextInputMethod', {});
+  },
+
+  supportsSwitching: function() {
+    if (!WindowMap.isActive(this._window)) {
+      return false;
+    }
+    return this.supportsSwitchingForCurrentInputContext;
+  },
+
+  hide: function() {
+    if (!WindowMap.isActive(this._window)) {
+      return;
+    }
+    cpmmSendAsyncMessageWithKbID(this, 'Keyboard:RemoveFocus', {});
+  },
+
+  setSupportsSwitchingTypes: function(types) {
+    cpmm.sendAsyncMessage('System:SetSupportsSwitchingTypes', {
+      types: types
+    });
+  },
+
+  handleFocus: function(data) {
+    let detail = new MozInputContextFocusEventDetail(this._window, data);
+    let wrappedDetail =
+      this._window.MozInputContextFocusEventDetail._create(this._window, detail);
+    let event = new this._window.CustomEvent('inputcontextfocus',
+      { cancelable: true, detail: wrappedDetail });
+
+    let handled = !this.__DOM_IMPL__.dispatchEvent(event);
+
+    // A gentle warning if the event is not preventDefault() by the content.
+    if (!handled) {
+      dump('MozKeyboard.js: A frame with input-manage permission did not' +
+        ' handle the inputcontextfocus event dispatched.\n');
+    }
+  },
+
+  handleBlur: function(data) {
+    let event =
+      new this._window.Event('inputcontextblur', { cancelable: true });
+
+    let handled = !this.__DOM_IMPL__.dispatchEvent(event);
+
+    // A gentle warning if the event is not preventDefault() by the content.
+    if (!handled) {
+      dump('MozKeyboard.js: A frame with input-manage permission did not' +
+        ' handle the inputcontextblur event dispatched.\n');
+    }
+  },
+
+  dispatchShowAllRequestEvent: function() {
+    this._fireSimpleEvent('showallrequest');
+  },
+
+  dispatchNextRequestEvent: function() {
+    this._fireSimpleEvent('nextrequest');
+  },
+
+  _fireSimpleEvent: function(eventType) {
+    let event = new this._window.Event(eventType);
+    let handled = !this.__DOM_IMPL__.dispatchEvent(event, { cancelable: true });
+
+    // A gentle warning if the event is not preventDefault() by the content.
+    if (!handled) {
+      dump('MozKeyboard.js: A frame with input-manage permission did not' +
+        ' handle the ' + eventType + ' event dispatched.\n');
+    }
+  },
+
+  handleAddInput: function(data) {
+    let p = this._fireInputRegistryEvent('addinputrequest', data);
+    if (!p) {
+      return;
+    }
+
+    p.then(() => {
+      cpmm.sendAsyncMessage('System:InputRegistry:Add:Done', {
+        id: data.id
+      });
+    }, (error) => {
+      cpmm.sendAsyncMessage('System:InputRegistry:Add:Done', {
+        id: data.id,
+        error: error || 'Unknown Error'
+      });
+    });
+  },
+
+  handleRemoveInput: function(data) {
+    let p = this._fireInputRegistryEvent('removeinputrequest', data);
+    if (!p) {
+      return;
+    }
+
+    p.then(() => {
+      cpmm.sendAsyncMessage('System:InputRegistry:Remove:Done', {
+        id: data.id
+      });
+    }, (error) => {
+      cpmm.sendAsyncMessage('System:InputRegistry:Remove:Done', {
+        id: data.id,
+        error: error || 'Unknown Error'
+      });
+    });
+  },
+
+  _fireInputRegistryEvent: function(eventType, data) {
+    let detail = new MozInputRegistryEventDetail(this._window, data);
+    let wrappedDetail =
+      this._window.MozInputRegistryEventDetail._create(this._window, detail);
+    let event = new this._window.CustomEvent(eventType,
+      { cancelable: true, detail: wrappedDetail });
+    let handled = !this.__DOM_IMPL__.dispatchEvent(event);
+
+    // A gentle warning if the event is not preventDefault() by the content.
+    if (!handled) {
+      dump('MozKeyboard.js: A frame with input-manage permission did not' +
+        ' handle the ' + eventType + ' event dispatched.\n');
+
+      return null;
+    }
+    return detail.takeChainedPromise();
+  }
+};
+
+function MozInputContextFocusEventDetail(win, data) {
+  this.type = data.type;
+  this.inputType = data.inputType;
+  this.value = data.value;
+  // Exposed as MozInputContextChoicesInfo dictionary defined in WebIDL
+  this.choices = data.choices;
+  this.min = data.min;
+  this.max = data.max;
+}
+MozInputContextFocusEventDetail.prototype = {
+  classID: Components.ID("{e0794208-ac50-40e8-b22e-6ee0b4c4e6e8}"),
+  QueryInterface: XPCOMUtils.generateQI([]),
+
+  type: undefined,
+  inputType: undefined,
+  value: '',
+  choices: null,
+  min: undefined,
+  max: undefined
+};
+
+function MozInputRegistryEventDetail(win, data) {
+  this._window = win;
+
+  this.manifestURL = data.manifestURL;
+  this.inputId = data.inputId;
+  // Exposed as MozInputMethodInputManifest dictionary defined in WebIDL
+  this.inputManifest = data.inputManifest;
+
+  this._chainedPromise = Promise.resolve();
+}
+MozInputRegistryEventDetail.prototype = {
+  classID: Components.ID("{02130070-9b3e-4f38-bbd9-f0013aa36717}"),
+  QueryInterface: XPCOMUtils.generateQI([]),
+
+  _window: null,
+
+  manifestURL: undefined,
+  inputId: undefined,
+  inputManifest: null,
+
+  waitUntil: function(p) {
+    // Need an extra protection here since waitUntil will be an no-op
+    // when chainedPromise is already returned.
+    if (!this._chainedPromise) {
+      throw new this._window.DOMException(
+        'Must call waitUntil() within the event handling loop.',
+        'InvalidStateError');
+    }
+
+    this._chainedPromise = this._chainedPromise
+      .then(function() { return p; });
+  },
+
+  takeChainedPromise: function() {
+    var p = this._chainedPromise;
+    this._chainedPromise = null;
+    return p;
+  }
+};
+
+/**
+ * ==============================================
+ * InputMethod
+ * ==============================================
+ */
+function MozInputMethod() { }
+
+MozInputMethod.prototype = {
+  __proto__: DOMRequestIpcHelper.prototype,
+
+  _window: null,
+  _inputcontext: null,
+  _wrappedInputContext: null,
+  _mgmt: null,
+  _wrappedMgmt: null,
+  _supportsSwitchingTypes: [],
+  _inputManageId: undefined,
+
+  classID: Components.ID("{4607330d-e7d2-40a4-9eb8-43967eae0142}"),
+
+  QueryInterface: XPCOMUtils.generateQI([
+    Ci.nsIDOMGlobalPropertyInitializer,
+    Ci.nsIObserver,
+    Ci.nsISupportsWeakReference
+  ]),
+
+  init: function mozInputMethodInit(win) {
+    this._window = win;
+    this._mgmt = new MozInputMethodManager(win);
+    this._wrappedMgmt = win.MozInputMethodManager._create(win, this._mgmt);
+    this.innerWindowID = win.QueryInterface(Ci.nsIInterfaceRequestor)
+                            .getInterface(Ci.nsIDOMWindowUtils)
+                            .currentInnerWindowID;
+
+    Services.obs.addObserver(this, "inner-window-destroyed", false);
+
+    cpmm.addWeakMessageListener('Keyboard:Focus', this);
+    cpmm.addWeakMessageListener('Keyboard:Blur', this);
+    cpmm.addWeakMessageListener('Keyboard:SelectionChange', this);
+    cpmm.addWeakMessageListener('Keyboard:GetContext:Result:OK', this);
+    cpmm.addWeakMessageListener('Keyboard:SupportsSwitchingTypesChange', this);
+    cpmm.addWeakMessageListener('Keyboard:ReceiveHardwareKeyEvent', this);
+    cpmm.addWeakMessageListener('InputRegistry:Result:OK', this);
+    cpmm.addWeakMessageListener('InputRegistry:Result:Error', this);
+
+    if (this._hasInputManagePerm(win)) {
+      this._inputManageId = cpmm.sendSyncMessage('System:RegisterSync', {})[0];
+      cpmm.addWeakMessageListener('System:Focus', this);
+      cpmm.addWeakMessageListener('System:Blur', this);
+      cpmm.addWeakMessageListener('System:ShowAll', this);
+      cpmm.addWeakMessageListener('System:Next', this);
+      cpmm.addWeakMessageListener('System:InputRegistry:Add', this);
+      cpmm.addWeakMessageListener('System:InputRegistry:Remove', this);
+    }
+  },
+
+  uninit: function mozInputMethodUninit() {
+    this._window = null;
+    this._mgmt = null;
+    this._wrappedMgmt = null;
+
+    cpmm.removeWeakMessageListener('Keyboard:Focus', this);
+    cpmm.removeWeakMessageListener('Keyboard:Blur', this);
+    cpmm.removeWeakMessageListener('Keyboard:SelectionChange', this);
+    cpmm.removeWeakMessageListener('Keyboard:GetContext:Result:OK', this);
+    cpmm.removeWeakMessageListener('Keyboard:SupportsSwitchingTypesChange', this);
+    cpmm.removeWeakMessageListener('Keyboard:ReceiveHardwareKeyEvent', this);
+    cpmm.removeWeakMessageListener('InputRegistry:Result:OK', this);
+    cpmm.removeWeakMessageListener('InputRegistry:Result:Error', this);
+    this.setActive(false);
+
+    if (typeof this._inputManageId === 'number') {
+      cpmm.sendAsyncMessage('System:Unregister', {
+        'id': this._inputManageId
+      });
+      cpmm.removeWeakMessageListener('System:Focus', this);
+      cpmm.removeWeakMessageListener('System:Blur', this);
+      cpmm.removeWeakMessageListener('System:ShowAll', this);
+      cpmm.removeWeakMessageListener('System:Next', this);
+      cpmm.removeWeakMessageListener('System:InputRegistry:Add', this);
+      cpmm.removeWeakMessageListener('System:InputRegistry:Remove', this);
+    }
+  },
+
+  receiveMessage: function mozInputMethodReceiveMsg(msg) {
+    if (msg.name.startsWith('Keyboard') &&
+        !WindowMap.isActive(this._window)) {
+      return;
+    }
+
+    let data = msg.data;
+
+    if (msg.name.startsWith('System') &&
+      this._inputManageId !== data.inputManageId) {
+      return;
+    }
+    delete data.inputManageId;
+
+    let resolver = ('requestId' in data) ?
+      this.takePromiseResolver(data.requestId) : null;
+
+    switch(msg.name) {
+      case 'Keyboard:Focus':
+        // XXX Bug 904339 could receive 'text' event twice
+        this.setInputContext(data);
+        break;
+      case 'Keyboard:Blur':
+        this.setInputContext(null);
+        break;
+      case 'Keyboard:SelectionChange':
+        if (this.inputcontext) {
+          this._inputcontext.updateSelectionContext(data, false);
+        }
+        break;
+      case 'Keyboard:GetContext:Result:OK':
+        this.setInputContext(data);
+        break;
+      case 'Keyboard:SupportsSwitchingTypesChange':
+        this._supportsSwitchingTypes = data.types;
+        break;
+      case 'Keyboard:ReceiveHardwareKeyEvent':
+        if (!Ci.nsIHardwareKeyHandler) {
+          break;
+        }
+
+        let defaultPrevented = Ci.nsIHardwareKeyHandler.NO_DEFAULT_PREVENTED;
+
+        // |event.preventDefault()| is allowed to be called only when
+        // |event.cancelable| is true
+        if (this._inputcontext && data.keyDict.cancelable) {
+          defaultPrevented |= this._inputcontext.forwardHardwareKeyEvent(data);
+        }
+
+        cpmmSendAsyncMessageWithKbID(this, 'Keyboard:ReplyHardwareKeyEvent', {
+                                       type: data.type,
+                                       defaultPrevented: defaultPrevented
+                                     });
+        break;
+      case 'InputRegistry:Result:OK':
+        resolver.resolve();
+
+        break;
+
+      case 'InputRegistry:Result:Error':
+        resolver.reject(data.error);
+
+        break;
+
+      case 'System:Focus':
+        this._mgmt.handleFocus(data);
+        break;
+
+      case 'System:Blur':
+        this._mgmt.handleBlur(data);
+        break;
+
+      case 'System:ShowAll':
+        this._mgmt.dispatchShowAllRequestEvent();
+        break;
+
+      case 'System:Next':
+        this._mgmt.dispatchNextRequestEvent();
+        break;
+
+      case 'System:InputRegistry:Add':
+        this._mgmt.handleAddInput(data);
+        break;
+
+      case 'System:InputRegistry:Remove':
+        this._mgmt.handleRemoveInput(data);
+        break;
+    }
+  },
+
+  observe: function mozInputMethodObserve(subject, topic, data) {
+    let wId = subject.QueryInterface(Ci.nsISupportsPRUint64).data;
+    if (wId == this.innerWindowID)
+      this.uninit();
+  },
+
+  get mgmt() {
+    return this._wrappedMgmt;
+  },
+
+  get inputcontext() {
+    if (!WindowMap.isActive(this._window)) {
+      return null;
+    }
+    return this._wrappedInputContext;
+  },
+
+  set oninputcontextchange(handler) {
+    this.__DOM_IMPL__.setEventHandler("oninputcontextchange", handler);
+  },
+
+  get oninputcontextchange() {
+    return this.__DOM_IMPL__.getEventHandler("oninputcontextchange");
+  },
+
+  setInputContext: function mozKeyboardContextChange(data) {
+    if (this._inputcontext) {
+      this._inputcontext.destroy();
+      this._inputcontext = null;
+      this._wrappedInputContext = null;
+      this._mgmt.supportsSwitchingForCurrentInputContext = false;
+    }
+
+    if (data) {
+      this._mgmt.supportsSwitchingForCurrentInputContext =
+        (this._supportsSwitchingTypes.indexOf(data.inputType) !== -1);
+
+      this._inputcontext = new MozInputContext(data);
+      this._inputcontext.init(this._window);
+      // inputcontext will be exposed as a WebIDL object. Create its
+      // content-side object explicitly to avoid Bug 1001325.
+      this._wrappedInputContext =
+        this._window.MozInputContext._create(this._window, this._inputcontext);
+    }
+
+    let event = new this._window.Event("inputcontextchange");
+    this.__DOM_IMPL__.dispatchEvent(event);
+  },
+
+  setActive: function mozInputMethodSetActive(isActive) {
+    if (WindowMap.isActive(this._window) === isActive) {
+      return;
+    }
+
+    WindowMap.setActive(this._window, isActive);
+
+    if (isActive) {
+      // Activate current input method.
+      // If there is already an active context, then this will trigger
+      // a GetContext:Result:OK event, and we can initialize ourselves.
+      // Otherwise silently ignored.
+
+      // get keyboard ID from Keyboard.jsm,
+      // or if we already have it, get it from our map
+      // Note: if we need to get it from Keyboard.jsm,
+      // we have to use a synchronous message
+      var kbID = WindowMap.getKbID(this._window);
+      if (kbID) {
+        cpmmSendAsyncMessageWithKbID(this, 'Keyboard:RegisterSync', {});
+      } else {
+        let res = cpmm.sendSyncMessage('Keyboard:RegisterSync', {});
+        WindowMap.setKbID(this._window, res[0]);
+      }
+
+      cpmmSendAsyncMessageWithKbID(this, 'Keyboard:GetContext', {});
+    } else {
+      // Deactive current input method.
+      cpmmSendAsyncMessageWithKbID(this, 'Keyboard:Unregister', {});
+      if (this._inputcontext) {
+        this.setInputContext(null);
+      }
+    }
+  },
+
+  addInput: function(inputId, inputManifest) {
+    return this.createPromiseWithId(function(resolverId) {
+      let appId = this._window.document.nodePrincipal.appId;
+
+      cpmm.sendAsyncMessage('InputRegistry:Add', {
+        requestId: resolverId,
+        inputId: inputId,
+        inputManifest: inputManifest,
+        appId: appId
+      });
+    }.bind(this));
+  },
+
+  removeInput: function(inputId) {
+    return this.createPromiseWithId(function(resolverId) {
+      let appId = this._window.document.nodePrincipal.appId;
+
+      cpmm.sendAsyncMessage('InputRegistry:Remove', {
+        requestId: resolverId,
+        inputId: inputId,
+        appId: appId
+      });
+    }.bind(this));
+  },
+
+  setValue: function(value) {
+    cpmm.sendAsyncMessage('System:SetValue', {
+      'value': value
+    });
+  },
+
+  setSelectedOption: function(index) {
+    cpmm.sendAsyncMessage('System:SetSelectedOption', {
+      'index': index
+    });
+  },
+
+  setSelectedOptions: function(indexes) {
+    cpmm.sendAsyncMessage('System:SetSelectedOptions', {
+      'indexes': indexes
+    });
+  },
+
+  removeFocus: function() {
+    cpmm.sendAsyncMessage('System:RemoveFocus', {});
+  },
+
+  // Only the system app needs that, so instead of testing a permission which
+  // is allowed for all chrome:// url, we explicitly test that this is the
+  // system app's start URL.
+  _hasInputManagePerm: function(win) {
+    let url = win.location.href;
+    let systemAppIndex;
+    try {
+      systemAppIndex = Services.prefs.getCharPref('b2g.system_startup_url');
+    } catch(e) {
+      dump('MozKeyboard.jsm: no system app startup url set (pref is b2g.system_startup_url)');
+    }
+
+    dump(`MozKeyboard.jsm expecting ${systemAppIndex}\n`);
+    return url == systemAppIndex;
+  }
+};
+
+/**
+ * ==============================================
+ * InputContextDOMRequestIpcHelper
+ * ==============================================
+ */
+function InputContextDOMRequestIpcHelper(win) {
+  this.initDOMRequestHelper(win,
+    ["Keyboard:GetText:Result:OK",
+     "Keyboard:GetText:Result:Error",
+     "Keyboard:SetSelectionRange:Result:OK",
+     "Keyboard:ReplaceSurroundingText:Result:OK",
+     "Keyboard:SendKey:Result:OK",
+     "Keyboard:SendKey:Result:Error",
+     "Keyboard:SetComposition:Result:OK",
+     "Keyboard:EndComposition:Result:OK",
+     "Keyboard:SequenceError"]);
+}
+
+InputContextDOMRequestIpcHelper.prototype = {
+  __proto__: DOMRequestIpcHelper.prototype,
+  _inputContext: null,
+
+  attachInputContext: function(inputCtx) {
+    if (this._inputContext) {
+      throw new Error("InputContextDOMRequestIpcHelper: detach the context first.");
+    }
+
+    this._inputContext = inputCtx;
+  },
+
+  // Unset ourselves when the window is destroyed.
+  uninit: function() {
+    WindowMap.unsetInputContextIpcHelper(this._window);
+  },
+
+  detachInputContext: function() {
+    // All requests that are still pending need to be invalidated
+    // because the context is no longer valid.
+    this.forEachPromiseResolver(k => {
+      this.takePromiseResolver(k).reject("InputContext got destroyed");
+    });
+
+    this._inputContext = null;
+  },
+
+  receiveMessage: function(msg) {
+    if (!this._inputContext) {
+      dump('InputContextDOMRequestIpcHelper received message without context attached.\n');
+      return;
+    }
+
+    this._inputContext.receiveMessage(msg);
+  }
+};
+
+function MozInputContextSelectionChangeEventDetail(ctx, ownAction) {
+  this._ctx = ctx;
+  this.ownAction = ownAction;
+}
+
+MozInputContextSelectionChangeEventDetail.prototype = {
+  classID: Components.ID("ef35443e-a400-4ae3-9170-c2f4e05f7aed"),
+  QueryInterface: XPCOMUtils.generateQI([]),
+
+  ownAction: false,
+
+  get selectionStart() {
+    return this._ctx.selectionStart;
+  },
+
+  get selectionEnd() {
+    return this._ctx.selectionEnd;
+  }
+};
+
+function MozInputContextSurroundingTextChangeEventDetail(ctx, ownAction) {
+  this._ctx = ctx;
+  this.ownAction = ownAction;
+}
+
+MozInputContextSurroundingTextChangeEventDetail.prototype = {
+  classID: Components.ID("1c50fdaf-74af-4b2e-814f-792caf65a168"),
+  QueryInterface: XPCOMUtils.generateQI([]),
+
+  ownAction: false,
+
+  get text() {
+    return this._ctx.text;
+  },
+
+  get textBeforeCursor() {
+    return this._ctx.textBeforeCursor;
+  },
+
+  get textAfterCursor() {
+    return this._ctx.textAfterCursor;
+  }
+};
+
+/**
+ * ==============================================
+ * HardwareInput
+ * ==============================================
+ */
+function MozHardwareInput() {
+}
+
+MozHardwareInput.prototype = {
+  classID: Components.ID("{1e38633d-d08b-4867-9944-afa5c648adb6}"),
+  QueryInterface: XPCOMUtils.generateQI([]),
+};
+
+/**
+ * ==============================================
+ * InputContext
+ * ==============================================
+ */
+function MozInputContext(data) {
+  this._context = {
+    type: data.type,
+    inputType: data.inputType,
+    inputMode: data.inputMode,
+    lang: data.lang,
+    selectionStart: data.selectionStart,
+    selectionEnd: data.selectionEnd,
+    text: data.value
+  };
+
+  this._contextId = data.contextId;
+}
+
+MozInputContext.prototype = {
+  _window: null,
+  _context: null,
+  _contextId: -1,
+  _ipcHelper: null,
+  _hardwareinput: null,
+  _wrappedhardwareinput: null,
+
+  classID: Components.ID("{1e38633d-d08b-4867-9944-afa5c648adb6}"),
+
+  QueryInterface: XPCOMUtils.generateQI([
+    Ci.nsIObserver,
+    Ci.nsISupportsWeakReference
+  ]),
+
+  init: function ic_init(win) {
+    this._window = win;
+
+    this._ipcHelper = WindowMap.getInputContextIpcHelper(win);
+    this._ipcHelper.attachInputContext(this);
+    this._hardwareinput = new MozHardwareInput();
+    this._wrappedhardwareinput =
+      this._window.MozHardwareInput._create(this._window, this._hardwareinput);
+  },
+
+  destroy: function ic_destroy() {
+    // A consuming application might still hold a cached version of
+    // this object. After destroying all methods will throw because we
+    // cannot create new promises anymore, but we still hold
+    // (outdated) information in the context. So let's clear that out.
+    for (var k in this._context) {
+      if (this._context.hasOwnProperty(k)) {
+        this._context[k] = null;
+      }
+    }
+
+    this._ipcHelper.detachInputContext();
+    this._ipcHelper = null;
+
+    this._window = null;
+    this._hardwareinput = null;
+    this._wrappedhardwareinput = null;
+  },
+
+  receiveMessage: function ic_receiveMessage(msg) {
+    if (!msg || !msg.json) {
+      dump('InputContext received message without data\n');
+      return;
+    }
+
+    let json = msg.json;
+    let resolver = this._ipcHelper.takePromiseResolver(json.requestId);
+
+    if (!resolver) {
+      dump('InputContext received invalid requestId.\n');
+      return;
+    }
+
+    // Update context first before resolving promise to avoid race condition
+    if (json.selectioninfo) {
+      this.updateSelectionContext(json.selectioninfo, true);
+    }
+
+    switch (msg.name) {
+      case "Keyboard:SendKey:Result:OK":
+        resolver.resolve(true);
+        break;
+      case "Keyboard:SendKey:Result:Error":
+        resolver.reject(json.error);
+        break;
+      case "Keyboard:GetText:Result:OK":
+        resolver.resolve(json.text);
+        break;
+      case "Keyboard:GetText:Result:Error":
+        resolver.reject(json.error);
+        break;
+      case "Keyboard:SetSelectionRange:Result:OK":
+      case "Keyboard:ReplaceSurroundingText:Result:OK":
+        resolver.resolve(
+          Cu.cloneInto(json.selectioninfo, this._window));
+        break;
+      case "Keyboard:SequenceError":
+        // Occurs when a new element got focus, but the inputContext was
+        // not invalidated yet...
+        resolver.reject("InputContext has expired");
+        break;
+      case "Keyboard:SetComposition:Result:OK": // Fall through.
+      case "Keyboard:EndComposition:Result:OK":
+        resolver.resolve(true);
+        break;
+      default:
+        dump("Could not find a handler for " + msg.name);
+        resolver.reject();
+        break;
+    }
+  },
+
+  updateSelectionContext: function ic_updateSelectionContext(data, ownAction) {
+    if (!this._context) {
+      return;
+    }
+
+    let selectionDirty =
+      this._context.selectionStart !== data.selectionStart ||
+      this._context.selectionEnd !== data.selectionEnd;
+    let surroundDirty = selectionDirty || data.text !== this._contextId.text;
+
+    this._context.text = data.text;
+    this._context.selectionStart = data.selectionStart;
+    this._context.selectionEnd = data.selectionEnd;
+
+    if (selectionDirty) {
+      let selectionChangeDetail =
+        new MozInputContextSelectionChangeEventDetail(this, ownAction);
+      let wrappedSelectionChangeDetail =
+        this._window.MozInputContextSelectionChangeEventDetail
+          ._create(this._window, selectionChangeDetail);
+      let selectionChangeEvent = new this._window.CustomEvent("selectionchange",
+        { cancelable: false, detail: wrappedSelectionChangeDetail });
+
+      this.__DOM_IMPL__.dispatchEvent(selectionChangeEvent);
+    }
+
+    if (surroundDirty) {
+      let surroundingTextChangeDetail =
+        new MozInputContextSurroundingTextChangeEventDetail(this, ownAction);
+      let wrappedSurroundingTextChangeDetail =
+        this._window.MozInputContextSurroundingTextChangeEventDetail
+          ._create(this._window, surroundingTextChangeDetail);
+      let selectionChangeEvent = new this._window.CustomEvent("surroundingtextchange",
+        { cancelable: false, detail: wrappedSurroundingTextChangeDetail });
+
+      this.__DOM_IMPL__.dispatchEvent(selectionChangeEvent);
+    }
+  },
+
+  // tag name of the input field
+  get type() {
+    return this._context.type;
+  },
+
+  // type of the input field
+  get inputType() {
+    return this._context.inputType;
+  },
+
+  get inputMode() {
+    return this._context.inputMode;
+  },
+
+  get lang() {
+    return this._context.lang;
+  },
+
+  getText: function ic_getText(offset, length) {
+    let text;
+    if (offset && length) {
+      text = this._context.text.substr(offset, length);
+    } else if (offset) {
+      text = this._context.text.substr(offset);
+    } else {
+      text = this._context.text;
+    }
+
+    return this._window.Promise.resolve(text);
+  },
+
+  get selectionStart() {
+    return this._context.selectionStart;
+  },
+
+  get selectionEnd() {
+    return this._context.selectionEnd;
+  },
+
+  get text() {
+    return this._context.text;
+  },
+
+  get textBeforeCursor() {
+    let text = this._context.text;
+    let start = this._context.selectionStart;
+    return (start < 100) ?
+      text.substr(0, start) :
+      text.substr(start - 100, 100);
+  },
+
+  get textAfterCursor() {
+    let text = this._context.text;
+    let start = this._context.selectionStart;
+    let end = this._context.selectionEnd;
+    return text.substr(start, end - start + 100);
+  },
+
+  get hardwareinput() {
+    return this._wrappedhardwareinput;
+  },
+
+  setSelectionRange: function ic_setSelectionRange(start, length) {
+    let self = this;
+    return this._sendPromise(function(resolverId) {
+      cpmmSendAsyncMessageWithKbID(self, 'Keyboard:SetSelectionRange', {
+        contextId: self._contextId,
+        requestId: resolverId,
+        selectionStart: start,
+        selectionEnd: start + length
+      });
+    });
+  },
+
+  get onsurroundingtextchange() {
+    return this.__DOM_IMPL__.getEventHandler("onsurroundingtextchange");
+  },
+
+  set onsurroundingtextchange(handler) {
+    this.__DOM_IMPL__.setEventHandler("onsurroundingtextchange", handler);
+  },
+
+  get onselectionchange() {
+    return this.__DOM_IMPL__.getEventHandler("onselectionchange");
+  },
+
+  set onselectionchange(handler) {
+    this.__DOM_IMPL__.setEventHandler("onselectionchange", handler);
+  },
+
+  replaceSurroundingText: function ic_replaceSurrText(text, offset, length) {
+    let self = this;
+    return this._sendPromise(function(resolverId) {
+      cpmmSendAsyncMessageWithKbID(self, 'Keyboard:ReplaceSurroundingText', {
+        contextId: self._contextId,
+        requestId: resolverId,
+        text: text,
+        offset: offset || 0,
+        length: length || 0
+      });
+    });
+  },
+
+  deleteSurroundingText: function ic_deleteSurrText(offset, length) {
+    return this.replaceSurroundingText(null, offset, length);
+  },
+
+  sendKey: function ic_sendKey(dictOrKeyCode, charCode, modifiers, repeat) {
+    if (typeof dictOrKeyCode === 'number') {
+      // XXX: modifiers are ignored in this API method.
+
+      return this._sendPromise((resolverId) => {
+        cpmmSendAsyncMessageWithKbID(this, 'Keyboard:SendKey', {
+          contextId: this._contextId,
+          requestId: resolverId,
+          method: 'sendKey',
+          keyCode: dictOrKeyCode,
+          charCode: charCode,
+          repeat: repeat
+        });
+      });
+    } else if (typeof dictOrKeyCode === 'object') {
+      return this._sendPromise((resolverId) => {
+        cpmmSendAsyncMessageWithKbID(this, 'Keyboard:SendKey', {
+          contextId: this._contextId,
+          requestId: resolverId,
+          method: 'sendKey',
+          keyboardEventDict: this._getkeyboardEventDict(dictOrKeyCode)
+        });
+      });
+    } else {
+      // XXX: Should not reach here; implies WebIDL binding error.
+      throw new TypeError('Unknown argument passed.');
+    }
+  },
+
+  keydown: function ic_keydown(dict) {
+    return this._sendPromise((resolverId) => {
+      cpmmSendAsyncMessageWithKbID(this, 'Keyboard:SendKey', {
+        contextId: this._contextId,
+         requestId: resolverId,
+        method: 'keydown',
+        keyboardEventDict: this._getkeyboardEventDict(dict)
+       });
+     });
+   },
+
+  keyup: function ic_keyup(dict) {
+    return this._sendPromise((resolverId) => {
+      cpmmSendAsyncMessageWithKbID(this, 'Keyboard:SendKey', {
+        contextId: this._contextId,
+        requestId: resolverId,
+        method: 'keyup',
+        keyboardEventDict: this._getkeyboardEventDict(dict)
+      });
+    });
+  },
+
+  setComposition: function ic_setComposition(text, cursor, clauses, dict) {
+    let self = this;
+    return this._sendPromise((resolverId) => {
+      cpmmSendAsyncMessageWithKbID(self, 'Keyboard:SetComposition', {
+        contextId: self._contextId,
+        requestId: resolverId,
+        text: text,
+        cursor: (typeof cursor !== 'undefined') ? cursor : text.length,
+        clauses: clauses || null,
+        keyboardEventDict: this._getkeyboardEventDict(dict)
+      });
+    });
+  },
+
+  endComposition: function ic_endComposition(text, dict) {
+    let self = this;
+    return this._sendPromise((resolverId) => {
+      cpmmSendAsyncMessageWithKbID(self, 'Keyboard:EndComposition', {
+        contextId: self._contextId,
+        requestId: resolverId,
+        text: text || '',
+        keyboardEventDict: this._getkeyboardEventDict(dict)
+      });
+    });
+  },
+
+  // Generate a new keyboard event by the received keyboard dictionary
+  // and return defaultPrevented's result of the event after dispatching.
+  forwardHardwareKeyEvent: function ic_forwardHardwareKeyEvent(data) {
+    if (!Ci.nsIHardwareKeyHandler) {
+      return;
+    }
+
+    if (!this._context) {
+      return Ci.nsIHardwareKeyHandler.NO_DEFAULT_PREVENTED;
+    }
+    let evt = new this._window.KeyboardEvent(data.type,
+                                             Cu.cloneInto(data.keyDict,
+                                                          this._window));
+    this._hardwareinput.__DOM_IMPL__.dispatchEvent(evt);
+    return this._getDefaultPreventedValue(evt);
+  },
+
+  _getDefaultPreventedValue: function(evt) {
+    if (!Ci.nsIHardwareKeyHandler) {
+      return;
+    }
+
+    let flags = Ci.nsIHardwareKeyHandler.NO_DEFAULT_PREVENTED;
+
+    if (evt.defaultPrevented) {
+      flags |= Ci.nsIHardwareKeyHandler.DEFAULT_PREVENTED;
+    }
+
+    if (evt.defaultPreventedByChrome) {
+      flags |= Ci.nsIHardwareKeyHandler.DEFAULT_PREVENTED_BY_CHROME;
+    }
+
+    if (evt.defaultPreventedByContent) {
+      flags |= Ci.nsIHardwareKeyHandler.DEFAULT_PREVENTED_BY_CONTENT;
+    }
+
+    return flags;
+  },
+
+  _sendPromise: function(callback) {
+    let self = this;
+    return this._ipcHelper.createPromiseWithId(function(aResolverId) {
+      if (!WindowMap.isActive(self._window)) {
+        self._ipcHelper.removePromiseResolver(aResolverId);
+        reject('Input method is not active.');
+        return;
+      }
+      callback(aResolverId);
+    });
+  },
+
+  // Take a MozInputMethodKeyboardEventDict dict, creates a keyboardEventDict
+  // object that can be sent to forms.js
+  _getkeyboardEventDict: function(dict) {
+    if (typeof dict !== 'object' || !dict.key) {
+      return;
+    }
+
+    var keyboardEventDict = {
+      key: dict.key,
+      code: dict.code,
+      repeat: dict.repeat,
+      flags: 0
+    };
+
+    if (dict.printable) {
+      keyboardEventDict.flags |=
+        Ci.nsITextInputProcessor.KEY_FORCE_PRINTABLE_KEY;
+    }
+
+    if (/^[a-zA-Z0-9]$/.test(dict.key)) {
+      // keyCode must follow the key value in this range;
+      // disregard the keyCode from content.
+      keyboardEventDict.keyCode = dict.key.toUpperCase().charCodeAt(0);
+    } else if (typeof dict.keyCode === 'number') {
+      // Allow keyCode to be specified for other key values.
+      keyboardEventDict.keyCode = dict.keyCode;
+
+      // Allow keyCode to be explicitly set to zero.
+      if (dict.keyCode === 0) {
+        keyboardEventDict.flags |=
+          Ci.nsITextInputProcessor.KEY_KEEP_KEYCODE_ZERO;
+      }
+    }
+
+    return keyboardEventDict;
+  }
+};
+
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory([MozInputMethod]);
diff --git a/dom/inputmethod/forms.js b/dom/inputmethod/forms.js
new file mode 100644
index 000000000..1884f2b4d
--- /dev/null
+++ b/dom/inputmethod/forms.js
@@ -0,0 +1,1561 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- /
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+/* 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/. */
+
+"use strict";
+
+dump("###################################### forms.js loaded\n");
+
+var Ci = Components.interfaces;
+var Cc = Components.classes;
+var Cu = Components.utils;
+var Cr = Components.results;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import('resource://gre/modules/XPCOMUtils.jsm');
+XPCOMUtils.defineLazyServiceGetter(Services, "fm",
+                                   "@mozilla.org/focus-manager;1",
+                                   "nsIFocusManager");
+
+/*
+ * A WeakMap to map window to objects keeping it's TextInputProcessor instance.
+ */
+var WindowMap = {
+  // WeakMap of <window, object> pairs.
+  _map: null,
+
+  /*
+   * Set the object associated to the window and return it.
+   */
+  _getObjForWin: function(win) {
+    if (!this._map) {
+      this._map = new WeakMap();
+    }
+    if (this._map.has(win)) {
+      return this._map.get(win);
+    } else {
+      let obj = {
+        tip: null
+      };
+      this._map.set(win, obj);
+
+      return obj;
+    }
+  },
+
+  getTextInputProcessor: function(win) {
+    if (!win) {
+      return;
+    }
+    let obj = this._getObjForWin(win);
+    let tip = obj.tip
+
+    if (!tip) {
+      tip = obj.tip = Cc["@mozilla.org/text-input-processor;1"]
+        .createInstance(Ci.nsITextInputProcessor);
+    }
+
+    if (!tip.beginInputTransaction(win, textInputProcessorCallback)) {
+      tip = obj.tip = null;
+    }
+    return tip;
+  }
+};
+
+const RESIZE_SCROLL_DELAY = 20;
+// In content editable node, when there are hidden elements such as <br>, it
+// may need more than one (usually less than 3 times) move/extend operations
+// to change the selection range. If we cannot change the selection range
+// with more than 20 opertations, we are likely being blocked and cannot change
+// the selection range any more.
+const MAX_BLOCKED_COUNT = 20;
+
+var HTMLDocument = Ci.nsIDOMHTMLDocument;
+var HTMLHtmlElement = Ci.nsIDOMHTMLHtmlElement;
+var HTMLBodyElement = Ci.nsIDOMHTMLBodyElement;
+var HTMLIFrameElement = Ci.nsIDOMHTMLIFrameElement;
+var HTMLInputElement = Ci.nsIDOMHTMLInputElement;
+var HTMLTextAreaElement = Ci.nsIDOMHTMLTextAreaElement;
+var HTMLSelectElement = Ci.nsIDOMHTMLSelectElement;
+var HTMLOptGroupElement = Ci.nsIDOMHTMLOptGroupElement;
+var HTMLOptionElement = Ci.nsIDOMHTMLOptionElement;
+
+function guessKeyNameFromKeyCode(KeyboardEvent, aKeyCode) {
+  switch (aKeyCode) {
+    case KeyboardEvent.DOM_VK_CANCEL:
+      return "Cancel";
+    case KeyboardEvent.DOM_VK_HELP:
+      return "Help";
+    case KeyboardEvent.DOM_VK_BACK_SPACE:
+      return "Backspace";
+    case KeyboardEvent.DOM_VK_TAB:
+      return "Tab";
+    case KeyboardEvent.DOM_VK_CLEAR:
+      return "Clear";
+    case KeyboardEvent.DOM_VK_RETURN:
+      return "Enter";
+    case KeyboardEvent.DOM_VK_SHIFT:
+      return "Shift";
+    case KeyboardEvent.DOM_VK_CONTROL:
+      return "Control";
+    case KeyboardEvent.DOM_VK_ALT:
+      return "Alt";
+    case KeyboardEvent.DOM_VK_PAUSE:
+      return "Pause";
+    case KeyboardEvent.DOM_VK_EISU:
+      return "Eisu";
+    case KeyboardEvent.DOM_VK_ESCAPE:
+      return "Escape";
+    case KeyboardEvent.DOM_VK_CONVERT:
+      return "Convert";
+    case KeyboardEvent.DOM_VK_NONCONVERT:
+      return "NonConvert";
+    case KeyboardEvent.DOM_VK_ACCEPT:
+      return "Accept";
+    case KeyboardEvent.DOM_VK_MODECHANGE:
+      return "ModeChange";
+    case KeyboardEvent.DOM_VK_PAGE_UP:
+      return "PageUp";
+    case KeyboardEvent.DOM_VK_PAGE_DOWN:
+      return "PageDown";
+    case KeyboardEvent.DOM_VK_END:
+      return "End";
+    case KeyboardEvent.DOM_VK_HOME:
+      return "Home";
+    case KeyboardEvent.DOM_VK_LEFT:
+      return "ArrowLeft";
+    case KeyboardEvent.DOM_VK_UP:
+      return "ArrowUp";
+    case KeyboardEvent.DOM_VK_RIGHT:
+      return "ArrowRight";
+    case KeyboardEvent.DOM_VK_DOWN:
+      return "ArrowDown";
+    case KeyboardEvent.DOM_VK_SELECT:
+      return "Select";
+    case KeyboardEvent.DOM_VK_PRINT:
+      return "Print";
+    case KeyboardEvent.DOM_VK_EXECUTE:
+      return "Execute";
+    case KeyboardEvent.DOM_VK_PRINTSCREEN:
+      return "PrintScreen";
+    case KeyboardEvent.DOM_VK_INSERT:
+      return "Insert";
+    case KeyboardEvent.DOM_VK_DELETE:
+      return "Delete";
+    case KeyboardEvent.DOM_VK_WIN:
+      return "OS";
+    case KeyboardEvent.DOM_VK_CONTEXT_MENU:
+      return "ContextMenu";
+    case KeyboardEvent.DOM_VK_SLEEP:
+      return "Standby";
+    case KeyboardEvent.DOM_VK_F1:
+      return "F1";
+    case KeyboardEvent.DOM_VK_F2:
+      return "F2";
+    case KeyboardEvent.DOM_VK_F3:
+      return "F3";
+    case KeyboardEvent.DOM_VK_F4:
+      return "F4";
+    case KeyboardEvent.DOM_VK_F5:
+      return "F5";
+    case KeyboardEvent.DOM_VK_F6:
+      return "F6";
+    case KeyboardEvent.DOM_VK_F7:
+      return "F7";
+    case KeyboardEvent.DOM_VK_F8:
+      return "F8";
+    case KeyboardEvent.DOM_VK_F9:
+      return "F9";
+    case KeyboardEvent.DOM_VK_F10:
+      return "F10";
+    case KeyboardEvent.DOM_VK_F11:
+      return "F11";
+    case KeyboardEvent.DOM_VK_F12:
+      return "F12";
+    case KeyboardEvent.DOM_VK_F13:
+      return "F13";
+    case KeyboardEvent.DOM_VK_F14:
+      return "F14";
+    case KeyboardEvent.DOM_VK_F15:
+      return "F15";
+    case KeyboardEvent.DOM_VK_F16:
+      return "F16";
+    case KeyboardEvent.DOM_VK_F17:
+      return "F17";
+    case KeyboardEvent.DOM_VK_F18:
+      return "F18";
+    case KeyboardEvent.DOM_VK_F19:
+      return "F19";
+    case KeyboardEvent.DOM_VK_F20:
+      return "F20";
+    case KeyboardEvent.DOM_VK_F21:
+      return "F21";
+    case KeyboardEvent.DOM_VK_F22:
+      return "F22";
+    case KeyboardEvent.DOM_VK_F23:
+      return "F23";
+    case KeyboardEvent.DOM_VK_F24:
+      return "F24";
+    case KeyboardEvent.DOM_VK_NUM_LOCK:
+      return "NumLock";
+    case KeyboardEvent.DOM_VK_SCROLL_LOCK:
+      return "ScrollLock";
+    case KeyboardEvent.DOM_VK_VOLUME_MUTE:
+      return "AudioVolumeMute";
+    case KeyboardEvent.DOM_VK_VOLUME_DOWN:
+      return "AudioVolumeDown";
+    case KeyboardEvent.DOM_VK_VOLUME_UP:
+      return "AudioVolumeUp";
+    case KeyboardEvent.DOM_VK_META:
+      return "Meta";
+    case KeyboardEvent.DOM_VK_ALTGR:
+      return "AltGraph";
+    case KeyboardEvent.DOM_VK_ATTN:
+      return "Attn";
+    case KeyboardEvent.DOM_VK_CRSEL:
+      return "CrSel";
+    case KeyboardEvent.DOM_VK_EXSEL:
+      return "ExSel";
+    case KeyboardEvent.DOM_VK_EREOF:
+      return "EraseEof";
+    case KeyboardEvent.DOM_VK_PLAY:
+      return "Play";
+    default:
+      return "Unidentified";
+  }
+}
+
+var FormVisibility = {
+  /**
+   * Searches upwards in the DOM for an element that has been scrolled.
+   *
+   * @param {HTMLElement} node element to start search at.
+   * @return {Window|HTMLElement|Null} null when none are found window/element otherwise.
+   */
+  findScrolled: function fv_findScrolled(node) {
+    let win = node.ownerDocument.defaultView;
+
+    while (!(node instanceof HTMLBodyElement)) {
+
+      // We can skip elements that have not been scrolled.
+      // We only care about top now remember to add the scrollLeft
+      // check if we decide to care about the X axis.
+      if (node.scrollTop !== 0) {
+        // the element has been scrolled so we may need to adjust
+        // where we think the root element is located.
+        //
+        // Otherwise it may seem visible but be scrolled out of the viewport
+        // inside this scrollable node.
+        return node;
+      } else {
+        // this node does not effect where we think
+        // the node is even if it is scrollable it has not hidden
+        // the element we are looking for.
+        node = node.parentNode;
+        continue;
+      }
+    }
+
+    // we also care about the window this is the more
+    // common case where the content is larger then
+    // the viewport/screen.
+    if (win.scrollMaxX != win.scrollMinX || win.scrollMaxY != win.scrollMinY) {
+      return win;
+    }
+
+    return null;
+  },
+
+  /**
+   * Checks if "top  and "bottom" points of the position is visible.
+   *
+   * @param {Number} top position.
+   * @param {Number} height of the element.
+   * @param {Number} maxHeight of the window.
+   * @return {Boolean} true when visible.
+   */
+  yAxisVisible: function fv_yAxisVisible(top, height, maxHeight) {
+    return (top > 0 && (top + height) < maxHeight);
+  },
+
+  /**
+   * Searches up through the dom for scrollable elements
+   * which are not currently visible (relative to the viewport).
+   *
+   * @param {HTMLElement} element to start search at.
+   * @param {Object} pos .top, .height and .width of element.
+   */
+  scrollablesVisible: function fv_scrollablesVisible(element, pos) {
+    while ((element = this.findScrolled(element))) {
+      if (element.window && element.self === element)
+        break;
+
+      // remember getBoundingClientRect does not care
+      // about scrolling only where the element starts
+      // in the document.
+      let offset = element.getBoundingClientRect();
+
+      // the top of both the scrollable area and
+      // the form element itself are in the same document.
+      // We  adjust the "top" so if the elements coordinates
+      // are relative to the viewport in the current document.
+      let adjustedTop = pos.top - offset.top;
+
+      let visible = this.yAxisVisible(
+        adjustedTop,
+        pos.height,
+        offset.height
+      );
+
+      if (!visible)
+        return false;
+
+      element = element.parentNode;
+    }
+
+    return true;
+  },
+
+  /**
+   * Verifies the element is visible in the viewport.
+   * Handles scrollable areas, frames and scrollable viewport(s) (windows).
+   *
+   * @param {HTMLElement} element to verify.
+   * @return {Boolean} true when visible.
+   */
+  isVisible: function fv_isVisible(element) {
+    // scrollable frames can be ignored we just care about iframes...
+    let rect = element.getBoundingClientRect();
+    let parent = element.ownerDocument.defaultView;
+
+    // used to calculate the inner position of frames / scrollables.
+    // The intent was to use this information to scroll either up or down.
+    // scrollIntoView(true) will _break_ some web content so we can't do
+    // this today. If we want that functionality we need to manually scroll
+    // the individual elements.
+    let pos = {
+      top: rect.top,
+      height: rect.height,
+      width: rect.width
+    };
+
+    let visible = true;
+
+    do {
+      let frame = parent.frameElement;
+      visible = visible &&
+                this.yAxisVisible(pos.top, pos.height, parent.innerHeight) &&
+                this.scrollablesVisible(element, pos);
+
+      // nothing we can do about this now...
+      // In the future we can use this information to scroll
+      // only the elements we need to at this point as we should
+      // have all the details we need to figure out how to scroll.
+      if (!visible)
+        return false;
+
+      if (frame) {
+        let frameRect = frame.getBoundingClientRect();
+
+        pos.top += frameRect.top + frame.clientTop;
+      }
+    } while (
+      (parent !== parent.parent) &&
+      (parent = parent.parent)
+    );
+
+    return visible;
+  }
+};
+
+// This object implements nsITextInputProcessorCallback
+var textInputProcessorCallback = {
+  onNotify: function(aTextInputProcessor, aNotification) {
+    try {
+      switch (aNotification.type) {
+        case "request-to-commit":
+          // TODO: Send a notification through asyncMessage to the keyboard here.
+          aTextInputProcessor.commitComposition();
+
+          break;
+        case "request-to-cancel":
+          // TODO: Send a notification through asyncMessage to the keyboard here.
+          aTextInputProcessor.cancelComposition();
+
+          break;
+
+        case "notify-detached":
+          // TODO: Send a notification through asyncMessage to the keyboard here.
+          break;
+
+        // TODO: Manage _focusedElement for text input from here instead.
+        //       (except for <select> which will be need to handled elsewhere)
+        case "notify-focus":
+          break;
+
+        case "notify-blur":
+          break;
+      }
+    } catch (e) {
+      return false;
+    }
+    return true;
+  }
+};
+
+var FormAssistant = {
+  init: function fa_init() {
+    addEventListener("focus", this, true, false);
+    addEventListener("blur", this, true, false);
+    addEventListener("resize", this, true, false);
+    // We should not blur the fucus if the submit event is cancelled,
+    // therefore we are binding our event listener in the bubbling phase here.
+    addEventListener("submit", this, false, false);
+    addEventListener("pagehide", this, true, false);
+    addEventListener("beforeunload", this, true, false);
+    addEventListener("input", this, true, false);
+    addEventListener("keydown", this, true, false);
+    addEventListener("keyup", this, true, false);
+    addMessageListener("Forms:Select:Choice", this);
+    addMessageListener("Forms:Input:Value", this);
+    addMessageListener("Forms:Select:Blur", this);
+    addMessageListener("Forms:SetSelectionRange", this);
+    addMessageListener("Forms:ReplaceSurroundingText", this);
+    addMessageListener("Forms:Input:SendKey", this);
+    addMessageListener("Forms:GetContext", this);
+    addMessageListener("Forms:SetComposition", this);
+    addMessageListener("Forms:EndComposition", this);
+  },
+
+  ignoredInputTypes: new Set([
+    'button', 'file', 'checkbox', 'radio', 'reset', 'submit', 'image',
+    'range'
+  ]),
+
+  isHandlingFocus: false,
+  selectionStart: -1,
+  selectionEnd: -1,
+  text: "",
+
+  scrollIntoViewTimeout: null,
+  _focusedElement: null,
+  _focusCounter: 0, // up one for every time we focus a new element
+  _focusDeleteObserver: null,
+  _focusContentObserver: null,
+  _documentEncoder: null,
+  _editor: null,
+  _editing: false,
+  _selectionPrivate: null,
+
+  get focusedElement() {
+    if (this._focusedElement && Cu.isDeadWrapper(this._focusedElement))
+      this._focusedElement = null;
+
+    return this._focusedElement;
+  },
+
+  set focusedElement(val) {
+    this._focusCounter++;
+    this._focusedElement = val;
+  },
+
+  setFocusedElement: function fa_setFocusedElement(element) {
+    let self = this;
+
+    if (element === this.focusedElement)
+      return;
+
+    if (this.focusedElement) {
+      this.focusedElement.removeEventListener('compositionend', this);
+      if (this._focusDeleteObserver) {
+        this._focusDeleteObserver.disconnect();
+        this._focusDeleteObserver = null;
+      }
+      if (this._focusContentObserver) {
+        this._focusContentObserver.disconnect();
+        this._focusContentObserver = null;
+      }
+      if (this._selectionPrivate) {
+        this._selectionPrivate.removeSelectionListener(this);
+        this._selectionPrivate = null;
+      }
+    }
+
+    this._documentEncoder = null;
+    if (this._editor) {
+      // When the nsIFrame of the input element is reconstructed by
+      // CSS restyling, the editor observers are removed. Catch
+      // [nsIEditor.removeEditorObserver] failure exception if that
+      // happens.
+      try {
+        this._editor.removeEditorObserver(this);
+      } catch (e) {}
+      this._editor = null;
+    }
+
+    if (element) {
+      element.addEventListener('compositionend', this);
+      if (isContentEditable(element)) {
+        this._documentEncoder = getDocumentEncoder(element);
+      }
+      this._editor = getPlaintextEditor(element);
+      if (this._editor) {
+        // Add a nsIEditorObserver to monitor the text content of the focused
+        // element.
+        this._editor.addEditorObserver(this);
+
+        let selection = this._editor.selection;
+        if (selection) {
+          this._selectionPrivate = selection.QueryInterface(Ci.nsISelectionPrivate);
+          this._selectionPrivate.addSelectionListener(this);
+        }
+      }
+
+      // If our focusedElement is removed from DOM we want to handle it properly
+      let MutationObserver = element.ownerDocument.defaultView.MutationObserver;
+      this._focusDeleteObserver = new MutationObserver(function(mutations) {
+        var del = [].some.call(mutations, function(m) {
+          return [].some.call(m.removedNodes, function(n) {
+            return n.contains(element);
+          });
+        });
+        if (del && element === self.focusedElement) {
+          self.unhandleFocus();
+        }
+      });
+
+      this._focusDeleteObserver.observe(element.ownerDocument.body, {
+        childList: true,
+        subtree: true
+      });
+
+      // If contenteditable, also add a mutation observer on its content and
+      // call selectionChanged when a change occurs
+      if (isContentEditable(element)) {
+        this._focusContentObserver = new MutationObserver(function() {
+          this.updateSelection();
+        }.bind(this));
+
+        this._focusContentObserver.observe(element, {
+          childList: true,
+          subtree: true
+        });
+      }
+    }
+
+    this.focusedElement = element;
+  },
+
+  notifySelectionChanged: function(aDocument, aSelection, aReason) {
+    this.updateSelection();
+  },
+
+  get documentEncoder() {
+    return this._documentEncoder;
+  },
+
+  // Get the nsIPlaintextEditor object of current input field.
+  get editor() {
+    return this._editor;
+  },
+
+  // Implements nsIEditorObserver get notification when the text content of
+  // current input field has changed.
+  EditAction: function fa_editAction() {
+    if (this._editing || !this.isHandlingFocus) {
+      return;
+    }
+    this.sendInputState(this.focusedElement);
+  },
+
+  handleEvent: function fa_handleEvent(evt) {
+    let target = evt.composedTarget;
+
+    let range = null;
+    switch (evt.type) {
+      case "focus":
+        if (!target) {
+          break;
+        }
+
+        // Focusing on Window, Document or iFrame should focus body
+        if (target instanceof HTMLHtmlElement) {
+          target = target.document.body;
+        } else if (target instanceof HTMLDocument) {
+          target = target.body;
+        } else if (target instanceof HTMLIFrameElement) {
+          target = target.contentDocument ? target.contentDocument.body
+                                          : null;
+        }
+
+        if (!target) {
+          break;
+        }
+
+        if (isContentEditable(target)) {
+          this.handleFocus(this.getTopLevelEditable(target));
+          this.updateSelection();
+          break;
+        }
+
+        if (this.isFocusableElement(target)) {
+          this.handleFocus(target);
+          this.updateSelection();
+        }
+        break;
+
+      case "pagehide":
+      case "beforeunload":
+        // We are only interested to the pagehide and beforeunload events from
+        // the root document.
+        if (target && target != content.document) {
+          break;
+        }
+        // fall through
+      case "submit":
+        if (this.focusedElement && !evt.defaultPrevented) {
+          this.focusedElement.blur();
+        }
+        break;
+
+      case "blur":
+        if (this.focusedElement) {
+          this.unhandleFocus();
+        }
+        break;
+
+      case "resize":
+        if (!this.isHandlingFocus)
+          return;
+
+        if (this.scrollIntoViewTimeout) {
+          content.clearTimeout(this.scrollIntoViewTimeout);
+          this.scrollIntoViewTimeout = null;
+        }
+
+        // We may receive multiple resize events in quick succession, so wait
+        // a bit before scrolling the input element into view.
+        if (this.focusedElement) {
+          this.scrollIntoViewTimeout = content.setTimeout(function () {
+            this.scrollIntoViewTimeout = null;
+            if (this.focusedElement && !FormVisibility.isVisible(this.focusedElement)) {
+              scrollSelectionOrElementIntoView(this.focusedElement);
+            }
+          }.bind(this), RESIZE_SCROLL_DELAY);
+        }
+        break;
+
+      case "keydown":
+        if (!this.focusedElement || this._editing) {
+          break;
+        }
+
+        CompositionManager.endComposition('');
+        break;
+
+      case "keyup":
+        if (!this.focusedElement || this._editing) {
+          break;
+        }
+
+        CompositionManager.endComposition('');
+        break;
+
+      case "compositionend":
+        if (!this.focusedElement) {
+          break;
+        }
+
+        CompositionManager.onCompositionEnd();
+        break;
+    }
+  },
+
+  receiveMessage: function fa_receiveMessage(msg) {
+    let target = this.focusedElement;
+    let json = msg.json;
+
+    // To not break mozKeyboard contextId is optional
+    if ('contextId' in json &&
+        json.contextId !== this._focusCounter &&
+        json.requestId) {
+      // Ignore messages that are meant for a previously focused element
+      sendAsyncMessage("Forms:SequenceError", {
+        requestId: json.requestId,
+        error: "Expected contextId " + this._focusCounter +
+               " but was " + json.contextId
+      });
+      return;
+    }
+
+    if (!target) {
+      return;
+    }
+
+    this._editing = true;
+    switch (msg.name) {
+      case "Forms:Input:Value": {
+        CompositionManager.endComposition('');
+
+        target.value = json.value;
+
+        let event = target.ownerDocument.createEvent('HTMLEvents');
+        event.initEvent('input', true, false);
+        target.dispatchEvent(event);
+        break;
+      }
+
+      case "Forms:Input:SendKey":
+        CompositionManager.endComposition('');
+
+        let win = target.ownerDocument.defaultView;
+        let tip = WindowMap.getTextInputProcessor(win);
+        if (!tip) {
+          if (json.requestId) {
+            sendAsyncMessage("Forms:SendKey:Result:Error", {
+              requestId: json.requestId,
+              error: "Unable to start input transaction."
+            });
+          }
+
+          break;
+        }
+
+        // If we receive a keyboardEventDict from json, that means the user
+        // is calling the method with the new arguments.
+        // Otherwise, we would have to construct our own keyboardEventDict
+        // based on legacy values we have received.
+        let keyboardEventDict = json.keyboardEventDict;
+        let flags = 0;
+
+        if (keyboardEventDict) {
+          if ('flags' in keyboardEventDict) {
+            flags = keyboardEventDict.flags;
+          }
+        } else {
+          // The naive way to figure out if the key to dispatch is printable.
+          let printable = !!json.charCode;
+
+          // For printable keys, the value should be the actual character.
+          // For non-printable keys, it should be a value in the D3E spec.
+          // Here we make some educated guess for it.
+          let key = printable ?
+              String.fromCharCode(json.charCode) :
+              guessKeyNameFromKeyCode(win.KeyboardEvent, json.keyCode);
+
+          // keyCode from content is only respected when the key is not an
+          // an alphanumeric character. We also ask TextInputProcessor not to
+          // infer this value for non-printable keys to keep the original
+          // behavior.
+          let keyCode = (printable && /^[a-zA-Z0-9]$/.test(key)) ?
+              key.toUpperCase().charCodeAt(0) :
+              json.keyCode;
+
+          keyboardEventDict = {
+            key: key,
+            keyCode: keyCode,
+            // We don't have any information to tell the virtual key the
+            // user have interacted with.
+            code: "",
+            // We do not have the information to infer location of the virtual key
+            // either (and we would need TextInputProcessor not to compute it).
+            location: 0,
+            // This indicates the key is triggered for repeats.
+            repeat: json.repeat
+          };
+
+          flags = tip.KEY_KEEP_KEY_LOCATION_STANDARD;
+          if (!printable) {
+            flags |= tip.KEY_NON_PRINTABLE_KEY;
+          }
+          if (!keyboardEventDict.keyCode) {
+            flags |= tip.KEY_KEEP_KEYCODE_ZERO;
+          }
+        }
+
+        let keyboardEvent = new win.KeyboardEvent("", keyboardEventDict);
+
+        let keydownDefaultPrevented = false;
+        try {
+          switch (json.method) {
+            case 'sendKey': {
+              let consumedFlags = tip.keydown(keyboardEvent, flags);
+              keydownDefaultPrevented =
+                !!(tip.KEYDOWN_IS_CONSUMED & consumedFlags);
+              if (!keyboardEventDict.repeat) {
+                tip.keyup(keyboardEvent, flags);
+              }
+              break;
+            }
+            case 'keydown': {
+              let consumedFlags = tip.keydown(keyboardEvent, flags);
+              keydownDefaultPrevented =
+                !!(tip.KEYDOWN_IS_CONSUMED & consumedFlags);
+              break;
+            }
+            case 'keyup': {
+              tip.keyup(keyboardEvent, flags);
+
+              break;
+            }
+          }
+        } catch (err) {
+          dump("forms.js:" + err.toString() + "\n");
+
+          if (json.requestId) {
+            if (err instanceof Ci.nsIException &&
+                err.result == Cr.NS_ERROR_ILLEGAL_VALUE) {
+              sendAsyncMessage("Forms:SendKey:Result:Error", {
+                requestId: json.requestId,
+                error: "The values specified are illegal."
+              });
+            } else {
+              sendAsyncMessage("Forms:SendKey:Result:Error", {
+                requestId: json.requestId,
+                error: "Unable to type into destroyed input."
+              });
+            }
+          }
+
+          break;
+        }
+
+        if (json.requestId) {
+          if (keydownDefaultPrevented) {
+            sendAsyncMessage("Forms:SendKey:Result:Error", {
+              requestId: json.requestId,
+              error: "Key event(s) was cancelled."
+            });
+          } else {
+            sendAsyncMessage("Forms:SendKey:Result:OK", {
+              requestId: json.requestId,
+              selectioninfo: this.getSelectionInfo()
+            });
+          }
+        }
+
+        break;
+
+      case "Forms:Select:Choice":
+        let options = target.options;
+        let valueChanged = false;
+        if ("index" in json) {
+          if (options.selectedIndex != json.index) {
+            options.selectedIndex = json.index;
+            valueChanged = true;
+          }
+        } else if ("indexes" in json) {
+          for (let i = 0; i < options.length; i++) {
+            let newValue = (json.indexes.indexOf(i) != -1);
+            if (options.item(i).selected != newValue) {
+              options.item(i).selected = newValue;
+              valueChanged = true;
+            }
+          }
+        }
+
+        // only fire onchange event if any selected option is changed
+        if (valueChanged) {
+          let event = target.ownerDocument.createEvent('HTMLEvents');
+          event.initEvent('change', true, true);
+          target.dispatchEvent(event);
+        }
+        break;
+
+      case "Forms:Select:Blur": {
+        if (this.focusedElement) {
+          this.focusedElement.blur();
+        }
+
+        break;
+      }
+
+      case "Forms:SetSelectionRange":  {
+        CompositionManager.endComposition('');
+
+        let start = json.selectionStart;
+        let end =  json.selectionEnd;
+
+        if (!setSelectionRange(target, start, end)) {
+          if (json.requestId) {
+            sendAsyncMessage("Forms:SetSelectionRange:Result:Error", {
+              requestId: json.requestId,
+              error: "failed"
+            });
+          }
+          break;
+        }
+
+        if (json.requestId) {
+          sendAsyncMessage("Forms:SetSelectionRange:Result:OK", {
+            requestId: json.requestId,
+            selectioninfo: this.getSelectionInfo()
+          });
+        }
+        break;
+      }
+
+      case "Forms:ReplaceSurroundingText": {
+        CompositionManager.endComposition('');
+
+        if (!replaceSurroundingText(target,
+                                    json.text,
+                                    json.offset,
+                                    json.length)) {
+          if (json.requestId) {
+            sendAsyncMessage("Forms:ReplaceSurroundingText:Result:Error", {
+              requestId: json.requestId,
+              error: "failed"
+            });
+          }
+          break;
+        }
+
+        if (json.requestId) {
+          sendAsyncMessage("Forms:ReplaceSurroundingText:Result:OK", {
+            requestId: json.requestId,
+            selectioninfo: this.getSelectionInfo()
+          });
+        }
+        break;
+      }
+
+      case "Forms:GetContext": {
+        let obj = getJSON(target, this._focusCounter);
+        sendAsyncMessage("Forms:GetContext:Result:OK", obj);
+        break;
+      }
+
+      case "Forms:SetComposition": {
+        CompositionManager.setComposition(target, json.text, json.cursor,
+                                          json.clauses, json.keyboardEventDict);
+        sendAsyncMessage("Forms:SetComposition:Result:OK", {
+          requestId: json.requestId,
+          selectioninfo: this.getSelectionInfo()
+        });
+        break;
+      }
+
+      case "Forms:EndComposition": {
+        CompositionManager.endComposition(json.text, json.keyboardEventDict);
+        sendAsyncMessage("Forms:EndComposition:Result:OK", {
+          requestId: json.requestId,
+          selectioninfo: this.getSelectionInfo()
+        });
+        break;
+      }
+    }
+    this._editing = false;
+
+  },
+
+  handleFocus: function fa_handleFocus(target) {
+    if (this.focusedElement === target)
+      return;
+
+    if (target instanceof HTMLOptionElement)
+      target = target.parentNode;
+
+    this.setFocusedElement(target);
+    this.sendInputState(target);
+    this.isHandlingFocus = true;
+  },
+
+  unhandleFocus: function fa_unhandleFocus() {
+    this.setFocusedElement(null);
+    this.isHandlingFocus = false;
+    this.selectionStart = -1;
+    this.selectionEnd = -1;
+    this.text = "";
+    sendAsyncMessage("Forms:Blur", {});
+  },
+
+  isFocusableElement: function fa_isFocusableElement(element) {
+    if (element instanceof HTMLSelectElement ||
+        element instanceof HTMLTextAreaElement)
+      return true;
+
+    if (element instanceof HTMLOptionElement &&
+        element.parentNode instanceof HTMLSelectElement)
+      return true;
+
+    return (element instanceof HTMLInputElement &&
+            !this.ignoredInputTypes.has(element.type) &&
+            !element.readOnly);
+  },
+
+  getTopLevelEditable: function fa_getTopLevelEditable(element) {
+    function retrieveTopLevelEditable(element) {
+      while (element && !isContentEditable(element))
+        element = element.parentNode;
+
+      return element;
+    }
+
+    return retrieveTopLevelEditable(element) || element;
+  },
+
+  sendInputState: function(element) {
+    sendAsyncMessage("Forms:Focus", getJSON(element, this._focusCounter));
+  },
+
+  getSelectionInfo: function fa_getSelectionInfo() {
+    let element = this.focusedElement;
+    let range =  getSelectionRange(element);
+
+    let text = isContentEditable(element) ? getContentEditableText(element)
+                                          : element.value;
+
+    let changed = this.selectionStart !== range[0] ||
+      this.selectionEnd !== range[1] ||
+      this.text !== text;
+
+    this.selectionStart = range[0];
+    this.selectionEnd = range[1];
+    this.text = text;
+
+    return {
+      selectionStart: range[0],
+      selectionEnd: range[1],
+      text: text,
+      changed: changed
+    };
+  },
+
+  _selectionTimeout: null,
+
+  // Notify when the selection range changes
+  updateSelection: function fa_updateSelection() {
+    // A call to setSelectionRange on input field causes 2 selection changes
+    // one to [0,0] and one to actual value. Both are sent in same tick.
+    // Prevent firing two events in that scenario, always only use the last 1.
+    //
+    // It is also a workaround for Bug 1053048, which prevents
+    // getSelectionInfo() accessing selectionStart or selectionEnd in the
+    // callback function of nsISelectionListener::NotifySelectionChanged().
+    if (this._selectionTimeout) {
+      content.clearTimeout(this._selectionTimeout);
+    }
+    this._selectionTimeout = content.setTimeout(function() {
+      if (!this.focusedElement) {
+        return;
+      }
+      let selectionInfo = this.getSelectionInfo();
+      if (selectionInfo.changed) {
+        sendAsyncMessage("Forms:SelectionChange", selectionInfo);
+      }
+    }.bind(this), 0);
+  }
+};
+
+FormAssistant.init();
+
+function isContentEditable(element) {
+  if (!element) {
+    return false;
+  }
+
+  if (element.isContentEditable || element.designMode == "on")
+    return true;
+
+  return element.ownerDocument && element.ownerDocument.designMode == "on";
+}
+
+function isPlainTextField(element) {
+  if (!element) {
+    return false;
+  }
+
+  return element instanceof HTMLTextAreaElement ||
+         (element instanceof HTMLInputElement &&
+          element.mozIsTextField(false));
+}
+
+function getJSON(element, focusCounter) {
+  // <input type=number> has a nested anonymous <input type=text> element that
+  // takes focus on behalf of the number control when someone tries to focus
+  // the number control. If |element| is such an anonymous text control then we
+  // need it's number control here in order to get the correct 'type' etc.:
+  element = element.ownerNumberControl || element;
+
+  let type = element.tagName.toLowerCase();
+  let inputType = (element.type || "").toLowerCase();
+  let value = element.value || "";
+  let max = element.max || "";
+  let min = element.min || "";
+
+  // Treat contenteditable element as a special text area field
+  if (isContentEditable(element)) {
+    type = "contenteditable";
+    inputType = "textarea";
+    value = getContentEditableText(element);
+  }
+
+  // Until the input type=date/datetime/range have been implemented
+  // let's return their real type even if the platform returns 'text'
+  let attributeInputType = element.getAttribute("type") || "";
+
+  if (attributeInputType) {
+    let inputTypeLowerCase = attributeInputType.toLowerCase();
+    switch (inputTypeLowerCase) {
+      case "datetime":
+      case "datetime-local":
+      case "month":
+      case "week":
+      case "range":
+        inputType = inputTypeLowerCase;
+        break;
+    }
+  }
+
+  // Gecko has some support for @inputmode but behind a preference and
+  // it is disabled by default.
+  // Gaia is then using @x-inputmode has its proprietary way to set
+  // inputmode for fields. This shouldn't be used outside of pre-installed
+  // apps because the attribute is going to disappear as soon as a definitive
+  // solution will be find.
+  let inputMode = element.getAttribute('x-inputmode');
+  if (inputMode) {
+    inputMode = inputMode.toLowerCase();
+  } else {
+    inputMode = '';
+  }
+
+  let range = getSelectionRange(element);
+
+  return {
+    "contextId": focusCounter,
+
+    "type": type,
+    "inputType": inputType,
+    "inputMode": inputMode,
+
+    "choices": getListForElement(element),
+    "value": value,
+    "selectionStart": range[0],
+    "selectionEnd": range[1],
+    "max": max,
+    "min": min,
+    "lang": element.lang || ""
+  };
+}
+
+function getListForElement(element) {
+  if (!(element instanceof HTMLSelectElement))
+    return null;
+
+  let optionIndex = 0;
+  let result = {
+    "multiple": element.multiple,
+    "choices": []
+  };
+
+  // Build up a flat JSON array of the choices.
+  // In HTML, it's possible for select element choices to be under a
+  // group header (but not recursively). We distinguish between headers
+  // and entries using the boolean "list.group".
+  let children = element.children;
+  for (let i = 0; i < children.length; i++) {
+    let child = children[i];
+
+    if (child instanceof HTMLOptGroupElement) {
+      result.choices.push({
+        "group": true,
+        "text": child.label || child.firstChild.data,
+        "disabled": child.disabled
+      });
+
+      let subchildren = child.children;
+      for (let j = 0; j < subchildren.length; j++) {
+        let subchild = subchildren[j];
+        result.choices.push({
+          "group": false,
+          "inGroup": true,
+          "text": subchild.text,
+          "disabled": child.disabled || subchild.disabled,
+          "selected": subchild.selected,
+          "optionIndex": optionIndex++
+        });
+      }
+    } else if (child instanceof HTMLOptionElement) {
+      result.choices.push({
+        "group": false,
+        "inGroup": false,
+        "text": child.text,
+        "disabled": child.disabled,
+        "selected": child.selected,
+        "optionIndex": optionIndex++
+      });
+    }
+  }
+
+  return result;
+};
+
+// Create a plain text document encode from the focused element.
+function getDocumentEncoder(element) {
+  let encoder = Cc["@mozilla.org/layout/documentEncoder;1?type=text/plain"]
+                .createInstance(Ci.nsIDocumentEncoder);
+  let flags = Ci.nsIDocumentEncoder.SkipInvisibleContent |
+              Ci.nsIDocumentEncoder.OutputRaw |
+              Ci.nsIDocumentEncoder.OutputDropInvisibleBreak |
+              // Bug 902847. Don't trim trailing spaces of a line.
+              Ci.nsIDocumentEncoder.OutputDontRemoveLineEndingSpaces |
+              Ci.nsIDocumentEncoder.OutputLFLineBreak |
+              Ci.nsIDocumentEncoder.OutputNonTextContentAsPlaceholder;
+  encoder.init(element.ownerDocument, "text/plain", flags);
+  return encoder;
+}
+
+// Get the visible content text of a content editable element
+function getContentEditableText(element) {
+  if (!element || !isContentEditable(element)) {
+    return null;
+  }
+
+  let doc = element.ownerDocument;
+  let range = doc.createRange();
+  range.selectNodeContents(element);
+  let encoder = FormAssistant.documentEncoder;
+  encoder.setRange(range);
+  return encoder.encodeToString();
+}
+
+function getSelectionRange(element) {
+  let start = 0;
+  let end = 0;
+  if (isPlainTextField(element)) {
+    // Get the selection range of <input> and <textarea> elements
+    start = element.selectionStart;
+    end = element.selectionEnd;
+  } else if (isContentEditable(element)){
+    // Get the selection range of contenteditable elements
+    let win = element.ownerDocument.defaultView;
+    let sel = win.getSelection();
+    if (sel && sel.rangeCount > 0) {
+      start = getContentEditableSelectionStart(element, sel);
+      end = start + getContentEditableSelectionLength(element, sel);
+    } else {
+      dump("Failed to get window.getSelection()\n");
+    }
+   }
+   return [start, end];
+ }
+
+function getContentEditableSelectionStart(element, selection) {
+  let doc = element.ownerDocument;
+  let range = doc.createRange();
+  range.setStart(element, 0);
+  range.setEnd(selection.anchorNode, selection.anchorOffset);
+  let encoder = FormAssistant.documentEncoder;
+  encoder.setRange(range);
+  return encoder.encodeToString().length;
+}
+
+function getContentEditableSelectionLength(element, selection) {
+  let encoder = FormAssistant.documentEncoder;
+  encoder.setRange(selection.getRangeAt(0));
+  return encoder.encodeToString().length;
+}
+
+function setSelectionRange(element, start, end) {
+  let isTextField = isPlainTextField(element);
+
+  // Check the parameters
+
+  if (!isTextField && !isContentEditable(element)) {
+    // Skip HTMLOptionElement and HTMLSelectElement elements, as they don't
+    // support the operation of setSelectionRange
+    return false;
+  }
+
+  let text = isTextField ? element.value : getContentEditableText(element);
+  let length = text.length;
+  if (start < 0) {
+    start = 0;
+  }
+  if (end > length) {
+    end = length;
+  }
+  if (start > end) {
+    start = end;
+  }
+
+  if (isTextField) {
+    // Set the selection range of <input> and <textarea> elements
+    element.setSelectionRange(start, end, "forward");
+    return true;
+  } else {
+    // set the selection range of contenteditable elements
+    let win = element.ownerDocument.defaultView;
+    let sel = win.getSelection();
+
+    // Move the caret to the start position
+    sel.collapse(element, 0);
+    for (let i = 0; i < start; i++) {
+      sel.modify("move", "forward", "character");
+    }
+
+    // Avoid entering infinite loop in case we cannot change the selection
+    // range. See bug https://bugzilla.mozilla.org/show_bug.cgi?id=978918
+    let oldStart = getContentEditableSelectionStart(element, sel);
+    let counter = 0;
+    while (oldStart < start) {
+      sel.modify("move", "forward", "character");
+      let newStart = getContentEditableSelectionStart(element, sel);
+      if (oldStart == newStart) {
+        counter++;
+        if (counter > MAX_BLOCKED_COUNT) {
+          return false;
+        }
+      } else {
+        counter = 0;
+        oldStart = newStart;
+      }
+    }
+
+    // Extend the selection to the end position
+    for (let i = start; i < end; i++) {
+      sel.modify("extend", "forward", "character");
+    }
+
+    // Avoid entering infinite loop in case we cannot change the selection
+    // range. See bug https://bugzilla.mozilla.org/show_bug.cgi?id=978918
+    counter = 0;
+    let selectionLength = end - start;
+    let oldSelectionLength = getContentEditableSelectionLength(element, sel);
+    while (oldSelectionLength  < selectionLength) {
+      sel.modify("extend", "forward", "character");
+      let newSelectionLength = getContentEditableSelectionLength(element, sel);
+      if (oldSelectionLength == newSelectionLength ) {
+        counter++;
+        if (counter > MAX_BLOCKED_COUNT) {
+          return false;
+        }
+      } else {
+        counter = 0;
+        oldSelectionLength = newSelectionLength;
+      }
+    }
+    return true;
+  }
+}
+
+/**
+ * Scroll the given element into view.
+ *
+ * Calls scrollSelectionIntoView for contentEditable elements.
+ */
+function scrollSelectionOrElementIntoView(element) {
+  let editor = getPlaintextEditor(element);
+  if (editor) {
+    editor.selectionController.scrollSelectionIntoView(
+      Ci.nsISelectionController.SELECTION_NORMAL,
+      Ci.nsISelectionController.SELECTION_FOCUS_REGION,
+      Ci.nsISelectionController.SCROLL_SYNCHRONOUS);
+  } else {
+      element.scrollIntoView(false);
+  }
+}
+
+// Get nsIPlaintextEditor object from an input field
+function getPlaintextEditor(element) {
+  let editor = null;
+  // Get nsIEditor
+  if (isPlainTextField(element)) {
+    // Get from the <input> and <textarea> elements
+    editor = element.QueryInterface(Ci.nsIDOMNSEditableElement).editor;
+  } else if (isContentEditable(element)) {
+    // Get from content editable element
+    let win = element.ownerDocument.defaultView;
+    let editingSession = win.QueryInterface(Ci.nsIInterfaceRequestor)
+                            .getInterface(Ci.nsIWebNavigation)
+                            .QueryInterface(Ci.nsIInterfaceRequestor)
+                            .getInterface(Ci.nsIEditingSession);
+    if (editingSession) {
+      editor = editingSession.getEditorForWindow(win);
+    }
+  }
+  if (editor) {
+    editor.QueryInterface(Ci.nsIPlaintextEditor);
+  }
+  return editor;
+}
+
+function replaceSurroundingText(element, text, offset, length) {
+  let editor = FormAssistant.editor;
+  if (!editor) {
+    return false;
+  }
+
+  // Check the parameters.
+  if (length < 0) {
+    length = 0;
+  }
+
+  // Change selection range before replacing. For content editable element,
+  // searching the node for setting selection range is not needed when the
+  // selection is collapsed within a text node.
+  let fastPathHit = false;
+  if (!isPlainTextField(element)) {
+    let sel = element.ownerDocument.defaultView.getSelection();
+    let node = sel.anchorNode;
+    if (sel.isCollapsed && node && node.nodeType == 3 /* TEXT_NODE */) {
+      let start = sel.anchorOffset + offset;
+      let end = start + length;
+      // Fallback to setSelectionRange() if the replacement span multiple nodes.
+      if (start >= 0 && end <= node.textContent.length) {
+        fastPathHit = true;
+        sel.collapse(node, start);
+        sel.extend(node, end);
+      }
+    }
+  }
+  if (!fastPathHit) {
+    let range = getSelectionRange(element);
+    let start = range[0] + offset;
+    if (start < 0) {
+      start = 0;
+    }
+    let end = start + length;
+    if (start != range[0] || end != range[1]) {
+      if (!setSelectionRange(element, start, end)) {
+        return false;
+      }
+    }
+  }
+
+  if (length) {
+    // Delete the selected text.
+    editor.deleteSelection(Ci.nsIEditor.ePrevious, Ci.nsIEditor.eStrip);
+  }
+
+  if (text) {
+    // We don't use CR but LF
+    // see https://bugzilla.mozilla.org/show_bug.cgi?id=902847
+    text = text.replace(/\r/g, '\n');
+    // Insert the text to be replaced with.
+    editor.insertText(text);
+  }
+  return true;
+}
+
+var CompositionManager =  {
+  _isStarted: false,
+  _tip: null,
+  _KeyboardEventForWin: null,
+  _clauseAttrMap: {
+    'raw-input':
+      Ci.nsITextInputProcessor.ATTR_RAW_CLAUSE,
+    'selected-raw-text':
+      Ci.nsITextInputProcessor.ATTR_SELECTED_RAW_CLAUSE,
+    'converted-text':
+      Ci.nsITextInputProcessor.ATTR_CONVERTED_CLAUSE,
+    'selected-converted-text':
+      Ci.nsITextInputProcessor.ATTR_SELECTED_CLAUSE
+  },
+
+  setComposition: function cm_setComposition(element, text, cursor, clauses, dict) {
+    // Check parameters.
+    if (!element) {
+      return;
+    }
+    let len = text.length;
+    if (cursor > len) {
+      cursor = len;
+    }
+    let clauseLens = [];
+    let clauseAttrs = [];
+    if (clauses) {
+      let remainingLength = len;
+      for (let i = 0; i < clauses.length; i++) {
+        if (clauses[i]) {
+          let clauseLength = clauses[i].length || 0;
+          // Make sure the total clauses length is not bigger than that of the
+          // composition string.
+          if (clauseLength > remainingLength) {
+            clauseLength = remainingLength;
+          }
+          remainingLength -= clauseLength;
+          clauseLens.push(clauseLength);
+          clauseAttrs.push(this._clauseAttrMap[clauses[i].selectionType] ||
+                           Ci.nsITextInputProcessor.ATTR_RAW_CLAUSE);
+        }
+      }
+      // If the total clauses length is less than that of the composition
+      // string, extend the last clause to the end of the composition string.
+      if (remainingLength > 0) {
+        clauseLens[clauseLens.length - 1] += remainingLength;
+      }
+    } else {
+      clauseLens.push(len);
+      clauseAttrs.push(Ci.nsITextInputProcessor.ATTR_RAW_CLAUSE);
+    }
+
+    let win = element.ownerDocument.defaultView;
+    let tip = WindowMap.getTextInputProcessor(win);
+    if (!tip) {
+      return;
+    }
+    // Update the composing text.
+    tip.setPendingCompositionString(text);
+    for (var i = 0; i < clauseLens.length; i++) {
+      if (!clauseLens[i]) {
+        continue;
+      }
+      tip.appendClauseToPendingComposition(clauseLens[i], clauseAttrs[i]);
+    }
+    if (cursor >= 0) {
+      tip.setCaretInPendingComposition(cursor);
+    }
+
+    if (!dict) {
+      this._isStarted = tip.flushPendingComposition();
+    } else {
+      let keyboardEvent = new win.KeyboardEvent("", dict);
+      let flags = dict.flags;
+      this._isStarted = tip.flushPendingComposition(keyboardEvent, flags);
+    }
+
+    if (this._isStarted) {
+      this._tip = tip;
+      this._KeyboardEventForWin = win.KeyboardEvent;
+    }
+  },
+
+  endComposition: function cm_endComposition(text, dict) {
+    if (!this._isStarted) {
+      return;
+    }
+    let tip = this._tip;
+    if (!tip) {
+      return;
+    }
+
+    text = text || "";
+    if (!dict) {
+      tip.commitCompositionWith(text);
+    } else {
+      let keyboardEvent = new this._KeyboardEventForWin("", dict);
+      let flags = dict.flags;
+      tip.commitCompositionWith(text, keyboardEvent, flags);
+    }
+
+    this._isStarted = false;
+    this._tip = null;
+    this._KeyboardEventForWin = null;
+  },
+
+  // Composition ends due to external actions.
+  onCompositionEnd: function cm_onCompositionEnd() {
+    if (!this._isStarted) {
+      return;
+    }
+
+    this._isStarted = false;
+    this._tip = null;
+    this._KeyboardEventForWin = null;
+  }
+};
diff --git a/dom/inputmethod/jar.mn b/dom/inputmethod/jar.mn
new file mode 100644
index 000000000..c7bb9a0fe
--- /dev/null
+++ b/dom/inputmethod/jar.mn
@@ -0,0 +1,6 @@
+# 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/.
+
+toolkit.jar:
+ content/global/forms.js                      (forms.js)
diff --git a/dom/inputmethod/mochitest/bug1110030_helper.js b/dom/inputmethod/mochitest/bug1110030_helper.js
new file mode 100644
index 000000000..54f15825b
--- /dev/null
+++ b/dom/inputmethod/mochitest/bug1110030_helper.js
@@ -0,0 +1,267 @@
+// ***********************************
+// * Global variables
+// ***********************************
+const kIsWin = navigator.platform.indexOf("Win") == 0;
+
+// Bit value for the keyboard events
+const kKeyDown  = 0x01;
+const kKeyPress = 0x02;
+const kKeyUp    = 0x04;
+
+// Pair the event name to its bit value
+const kEventCode = {
+  'keydown'   : kKeyDown,
+  'keypress'  : kKeyPress,
+  'keyup'     : kKeyUp
+};
+
+// Holding the current test case's infomation:
+var gCurrentTest;
+
+// The current used input method of this test
+var gInputMethod;
+
+// ***********************************
+// * Utilities
+// ***********************************
+function addKeyEventListeners(eventTarget, handler)
+{
+  Object.keys(kEventCode).forEach(function(type) {
+    eventTarget.addEventListener(type, handler);
+  });
+}
+
+function eventToCode(type)
+{
+  return kEventCode[type];
+}
+
+// To test key events that will be generated by input method here,
+// we need to convert alphabets to native key code.
+// (Our input method for testing will handle alphabets)
+// On the other hand, to test key events that will not be generated by IME,
+// we use 0-9 for such case in our testing.
+function guessNativeKeyCode(key)
+{
+  let nativeCodeName = (kIsWin)? 'WIN_VK_' : 'MAC_VK_ANSI_';
+  if (/^[A-Z]$/.test(key)) {
+    nativeCodeName += key;
+  } else if (/^[a-z]$/.test(key)) {
+    nativeCodeName += key.toUpperCase();
+  } else if (/^[0-9]$/.test(key)) {
+    nativeCodeName += key.toString();
+  } else {
+    return 0;
+  }
+
+  return eval(nativeCodeName);
+}
+
+// ***********************************
+// * Frame loader and frame scripts
+// ***********************************
+function frameScript()
+{
+  function handler(e) {
+    sendAsyncMessage("forwardevent", { type: e.type, key: e.key });
+  }
+  function notifyFinish(e) {
+    if (e.type != 'keyup') return;
+    sendAsyncMessage("finish");
+  }
+  let input = content.document.getElementById('test-input');
+  input.addEventListener('keydown', handler);
+  input.addEventListener('keypress', handler);
+  input.addEventListener('keyup', handler);
+  input.addEventListener('keyup', notifyFinish);
+}
+
+function loadTestFrame(goNext) {
+  let iframe = document.createElement('iframe');
+  iframe.src = 'file_test_empty_app.html';
+  iframe.setAttribute('mozbrowser', true);
+
+  iframe.addEventListener("mozbrowserloadend", function onloadend() {
+    iframe.removeEventListener("mozbrowserloadend", onloadend);
+    iframe.focus();
+    var mm = SpecialPowers.getBrowserFrameMessageManager(iframe);
+    mm.addMessageListener("forwardevent", function(msg) {
+      inputtextEventReceiver(msg.json);
+    });
+    mm.addMessageListener("finish", function(msg) {
+      if(goNext) {
+        goNext();
+      }
+    });
+    mm.loadFrameScript("data:,(" + frameScript.toString() + ")();", false);
+    return;
+  });
+
+  document.body.appendChild(iframe);
+}
+
+// ***********************************
+// * Event firer and listeners
+// ***********************************
+function fireEvent(callback)
+{
+  let key = gCurrentTest.key;
+  synthesizeNativeKey(KEYBOARD_LAYOUT_EN_US, guessNativeKeyCode(key), {},
+                      key, key, (callback) ? callback : null);
+}
+
+function hardwareEventReceiver(evt)
+{
+  if (!gCurrentTest) {
+    return;
+  }
+  gCurrentTest.hardwareinput.receivedEvents |= eventToCode(evt.type);
+  gCurrentTest.hardwareinput.receivedKeys += evt.key;
+}
+
+function inputtextEventReceiver(evt)
+{
+  if (!gCurrentTest) {
+    return;
+  }
+  gCurrentTest.inputtext.receivedEvents |= eventToCode(evt.type);
+  gCurrentTest.inputtext.receivedKeys += evt.key;
+}
+
+// ***********************************
+// * Event verifier
+// ***********************************
+function verifyResults(test)
+{
+  // Verify results received from inputcontent.hardwareinput
+  is(test.hardwareinput.receivedEvents,
+     test.hardwareinput.expectedEvents,
+     "received events from inputcontent.hardwareinput are wrong");
+
+  is(test.hardwareinput.receivedKeys,
+     test.hardwareinput.expectedKeys,
+     "received keys from inputcontent.hardwareinput are wrong");
+
+  // Verify results received from actual input text
+  is(test.inputtext.receivedEvents,
+     test.inputtext.expectedEvents,
+     "received events from input text are wrong");
+
+  is(test.inputtext.receivedKeys,
+     test.inputtext.expectedKeys,
+     "received keys from input text are wrong");
+}
+
+function areEventsSame(test)
+{
+  return (test.hardwareinput.receivedEvents ==
+          test.hardwareinput.expectedEvents) &&
+         (test.inputtext.receivedEvents ==
+          test.inputtext.expectedEvents);
+}
+
+// ***********************************
+// * Input Method
+// ***********************************
+// The method input used in this test
+// only handles alphabets
+function InputMethod(inputContext)
+{
+  this._inputContext = inputContext;
+  this.init();
+}
+
+InputMethod.prototype = {
+  init: function im_init() {
+    this._setKepMap();
+  },
+
+  handler: function im_handler(evt) {
+    // Ignore the key if the event is defaultPrevented
+    if (evt.defaultPrevented) {
+      return;
+    }
+
+    // Finish if there is no _inputContext
+    if (!this._inputContext) {
+      return;
+    }
+
+    // Generate the keyDict for inputcontext.keydown/keyup
+    let keyDict = this._generateKeyDict(evt);
+
+    // Ignore the key if IME doesn't want to handle it
+    if (!keyDict) {
+      return;
+    }
+
+    // Call preventDefault if the key will be handled.
+    evt.preventDefault();
+
+    // Call inputcontext.keydown/keyup
+    this._inputContext[evt.type](keyDict);
+  },
+
+  mapKey: function im_keymapping(key) {
+    if (!this._mappingTable) {
+      return;
+    }
+    return this._mappingTable[key];
+  },
+
+  _setKepMap: function im_setKeyMap() {
+    // A table to map characters:
+    // {
+    //   'A': 'B'
+    //   'a': 'b'
+    //   'B': 'C'
+    //   'b': 'c'
+    //   ..
+    //   ..
+    //   'Z': 'A',
+    //   'z': 'a',
+    // }
+    this._mappingTable = {};
+
+    let rotation = 1;
+
+    for (let i = 0 ; i < 26 ; i++) {
+      // Convert 'A' to 'B', 'B' to 'C', ..., 'Z' to 'A'
+      this._mappingTable[String.fromCharCode(i + 'A'.charCodeAt(0))] =
+        String.fromCharCode((i+rotation)%26 + 'A'.charCodeAt(0));
+
+      // Convert 'a' to 'b', 'b' to 'c', ..., 'z' to 'a'
+      this._mappingTable[String.fromCharCode(i + 'a'.charCodeAt(0))] =
+        String.fromCharCode((i+rotation)%26 + 'a'.charCodeAt(0));
+    }
+  },
+
+  _generateKeyDict: function im_generateKeyDict(evt) {
+
+    let mappedKey = this.mapKey(evt.key);
+
+    if (!mappedKey) {
+      return;
+    }
+
+    let keyDict = {
+      key: mappedKey,
+      code: this._guessCodeFromKey(mappedKey),
+      repeat: evt.repeat,
+    };
+
+    return keyDict;
+  },
+
+  _guessCodeFromKey: function im_guessCodeFromKey(key) {
+    if (/^[A-Z]$/.test(key)) {
+      return "Key" + key;
+    } else if (/^[a-z]$/.test(key)) {
+      return "Key" + key.toUpperCase();
+    } else if (/^[0-9]$/.test(key)) {
+      return "Digit" + key.toString();
+    } else {
+      return 0;
+    }
+  },
+};
diff --git a/dom/inputmethod/mochitest/chrome.ini b/dom/inputmethod/mochitest/chrome.ini
new file mode 100644
index 000000000..7575c2215
--- /dev/null
+++ b/dom/inputmethod/mochitest/chrome.ini
@@ -0,0 +1,52 @@
+[DEFAULT]
+# dom/inputmethod only made sense on B2G
+skip-if = true
+support-files =
+  bug1110030_helper.js
+  inputmethod_common.js
+  file_inputmethod.html
+  file_blank.html
+  file_test_app.html
+  file_test_bug1066515.html
+  file_test_bug1137557.html
+  file_test_bug1175399.html
+  file_test_empty_app.html
+  file_test_focus_blur_manage_events.html
+  file_test_sendkey_cancel.html
+  file_test_setSupportsSwitching.html
+  file_test_simple_manage_events.html
+  file_test_sms_app.html
+  file_test_sms_app_1066515.html
+  file_test_sync_edit.html
+  file_test_two_inputs.html
+  file_test_two_selects.html
+  file_test_unload.html
+  file_test_unload_action.html
+
+[test_basic.html]
+[test_bug944397.html]
+[test_bug949059.html]
+[test_bug953044.html]
+[test_bug960946.html]
+[test_bug978918.html]
+[test_bug1026997.html]
+[test_bug1043828.html]
+[test_bug1059163.html]
+disabled = fails because receiving bad values
+[test_bug1066515.html]
+[test_bug1137557.html]
+[test_bug1175399.html]
+[test_focus_blur_manage_events.html]
+disabled = fails because receiving bad events # also depends on bug 1254823
+[test_forward_hardware_key_to_ime.html]
+skip-if = true # Test only ran on Mulet
+[test_input_registry_events.html]
+disabled = timeout on pine
+[test_sendkey_cancel.html]
+[test_setSupportsSwitching.html]
+[test_simple_manage_events.html]
+disabled = fails because receiving bad events
+[test_sync_edit.html]
+[test_two_inputs.html]
+[test_two_selects.html]
+[test_unload.html]
diff --git a/dom/inputmethod/mochitest/file_blank.html b/dom/inputmethod/mochitest/file_blank.html
new file mode 100644
index 000000000..7879e1ce9
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_blank.html
@@ -0,0 +1,4 @@
+<html>
+<body>
+</body>
+</html>
diff --git a/dom/inputmethod/mochitest/file_inputmethod.html b/dom/inputmethod/mochitest/file_inputmethod.html
new file mode 100644
index 000000000..193cb0505
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_inputmethod.html
@@ -0,0 +1,25 @@
+<html>
+<body>
+<script>
+  var im = navigator.mozInputMethod;
+  if (im) {
+    im.oninputcontextchange = onIcc;
+
+    if (im.inputcontext) {
+      onIcc();
+    }
+  }
+
+  function onIcc() {
+    var ctx = im.inputcontext;
+    if (ctx) {
+      ctx.replaceSurroundingText(location.hash).then(function() {
+        /* Happy flow */
+      }, function(err) {
+        dump('ReplaceSurroundingText failed ' + err + '\n');
+      });
+    }
+  }
+</script>
+</body>
+</html>
diff --git a/dom/inputmethod/mochitest/file_test_app.html b/dom/inputmethod/mochitest/file_test_app.html
new file mode 100644
index 000000000..3063e9749
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_test_app.html
@@ -0,0 +1,11 @@
+<!DOCTYPE HTML>
+<html>
+<body>
+<input id="test-input" type="text" value="Yuan" x-inputmode="verbatim" lang="zh"/>
+<script type="application/javascript;version=1.7">
+  let input = document.getElementById('test-input');
+  input.focus();
+  dump('file_test_app.html was loaded.');
+</script>
+</body>
+</html>
diff --git a/dom/inputmethod/mochitest/file_test_bug1066515.html b/dom/inputmethod/mochitest/file_test_bug1066515.html
new file mode 100644
index 000000000..6331ec40e
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_test_bug1066515.html
@@ -0,0 +1,6 @@
+<!DOCTYPE HTML>
+<html>
+<body>
+<div id="text" contenteditable>Jan Jongboom</div>
+</body>
+</html>
diff --git a/dom/inputmethod/mochitest/file_test_bug1137557.html b/dom/inputmethod/mochitest/file_test_bug1137557.html
new file mode 100644
index 000000000..dc0c8d77e
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_test_bug1137557.html
@@ -0,0 +1,6 @@
+<!DOCTYPE HTML>
+<html>
+<body>
+<textarea rows=30 cols=30></textarea>
+</body>
+</html>
diff --git a/dom/inputmethod/mochitest/file_test_bug1175399.html b/dom/inputmethod/mochitest/file_test_bug1175399.html
new file mode 100644
index 000000000..3fa7da46c
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_test_bug1175399.html
@@ -0,0 +1 @@
+<html><body><input value="First" readonly></body></html>
diff --git a/dom/inputmethod/mochitest/file_test_empty_app.html b/dom/inputmethod/mochitest/file_test_empty_app.html
new file mode 100644
index 000000000..c071c1a31
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_test_empty_app.html
@@ -0,0 +1,10 @@
+<!DOCTYPE HTML>
+<html>
+<body>
+<input id="test-input" type="text" value=""/>
+<script type="application/javascript;version=1.7">
+  let input = document.getElementById('test-input');
+  input.focus();
+</script>
+</body>
+</html>
diff --git a/dom/inputmethod/mochitest/file_test_focus_blur_manage_events.html b/dom/inputmethod/mochitest/file_test_focus_blur_manage_events.html
new file mode 100644
index 000000000..bb8c44573
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_test_focus_blur_manage_events.html
@@ -0,0 +1,22 @@
+<html><body>
+<input type="text">
+<input type="search">
+<textarea></textarea>
+<p contenteditable></p>
+<input type="number">
+<input type="tel">
+<input type="url">
+<input type="email">
+<input type="password">
+<input type="datetime">
+<input type="date" value="2015-08-03" min="1990-01-01" max="2020-01-01">
+<input type="month">
+<input type="week">
+<input type="time">
+<input type="datetime-local">
+<input type="color">
+<select><option selected>foo</option><option disabled>bar</option>
+<optgroup label="group"><option>baz</option></optgroup></select>
+<select multiple><option selected>foo</option><option disabled>bar</option>
+<optgroup label="group"><option>baz</option></optgroup></select>
+</body></html>
diff --git a/dom/inputmethod/mochitest/file_test_sendkey_cancel.html b/dom/inputmethod/mochitest/file_test_sendkey_cancel.html
new file mode 100644
index 000000000..f40ee6959
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_test_sendkey_cancel.html
@@ -0,0 +1,14 @@
+<!DOCTYPE HTML>
+<html>
+<body>
+<input id="test-input" type="text" value="Yolo"/>
+<script type="application/javascript;version=1.7">
+  let input = document.getElementById('test-input');
+  input.focus();
+  
+  input.addEventListener('keydown', function(e) {
+    e.preventDefault();
+  });
+</script>
+</body>
+</html>
diff --git a/dom/inputmethod/mochitest/file_test_setSupportsSwitching.html b/dom/inputmethod/mochitest/file_test_setSupportsSwitching.html
new file mode 100644
index 000000000..5b5e1733a
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_test_setSupportsSwitching.html
@@ -0,0 +1,5 @@
+<html><body>
+<input type="text">
+<input type="number">
+<input type="password">
+</body></html>
diff --git a/dom/inputmethod/mochitest/file_test_simple_manage_events.html b/dom/inputmethod/mochitest/file_test_simple_manage_events.html
new file mode 100644
index 000000000..5c0c25cf4
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_test_simple_manage_events.html
@@ -0,0 +1 @@
+<html><body><input type="text"></body></html>
diff --git a/dom/inputmethod/mochitest/file_test_sms_app.html b/dom/inputmethod/mochitest/file_test_sms_app.html
new file mode 100644
index 000000000..7aa3e6081
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_test_sms_app.html
@@ -0,0 +1,14 @@
+<!DOCTYPE HTML>
+<html>
+<body>
+  <div id="messages-input" x-inputmode="-moz-sms" contenteditable="true"
+    autofocus="autofocus">Httvb<br></div>
+  <script type="application/javascript;version=1.7">
+    let input = document.getElementById('messages-input');
+    input.focus();
+  </script>
+</body>
+</html>
+ </div>
+</body>
+</html>
diff --git a/dom/inputmethod/mochitest/file_test_sms_app_1066515.html b/dom/inputmethod/mochitest/file_test_sms_app_1066515.html
new file mode 100644
index 000000000..a515c90b5
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_test_sms_app_1066515.html
@@ -0,0 +1,14 @@
+<!DOCTYPE HTML>
+<html>
+<body>
+  <div id="messages-input" x-inputmode="-moz-sms" contenteditable="true"
+    autofocus="autofocus">fxos<br>hello <b>world</b></div>
+  <script type="application/javascript;version=1.7">
+    let input = document.getElementById('messages-input');
+    input.focus();
+  </script>
+</body>
+</html>
+ </div>
+</body>
+</html>
diff --git a/dom/inputmethod/mochitest/file_test_sync_edit.html b/dom/inputmethod/mochitest/file_test_sync_edit.html
new file mode 100644
index 000000000..c450ad5cf
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_test_sync_edit.html
@@ -0,0 +1 @@
+<html><body><input value="First"></body></html>
diff --git a/dom/inputmethod/mochitest/file_test_two_inputs.html b/dom/inputmethod/mochitest/file_test_two_inputs.html
new file mode 100644
index 000000000..af7a2866d
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_test_two_inputs.html
@@ -0,0 +1 @@
+<html><body><input value="First"><input value="Second"></body></html>
diff --git a/dom/inputmethod/mochitest/file_test_two_selects.html b/dom/inputmethod/mochitest/file_test_two_selects.html
new file mode 100644
index 000000000..be2204f6e
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_test_two_selects.html
@@ -0,0 +1 @@
+<html><body><select><option>First</option></select><select><option>Second</option></select></html>
diff --git a/dom/inputmethod/mochitest/file_test_unload.html b/dom/inputmethod/mochitest/file_test_unload.html
new file mode 100644
index 000000000..d1a939405
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_test_unload.html
@@ -0,0 +1 @@
+<html><body><form id="form"><input value="First"><input type="submit"></form></body></html>
diff --git a/dom/inputmethod/mochitest/file_test_unload_action.html b/dom/inputmethod/mochitest/file_test_unload_action.html
new file mode 100644
index 000000000..20a9bb3af
--- /dev/null
+++ b/dom/inputmethod/mochitest/file_test_unload_action.html
@@ -0,0 +1 @@
+<html><body><input value="Second"></body></html>
diff --git a/dom/inputmethod/mochitest/inputmethod_common.js b/dom/inputmethod/mochitest/inputmethod_common.js
new file mode 100644
index 000000000..ad8103c9f
--- /dev/null
+++ b/dom/inputmethod/mochitest/inputmethod_common.js
@@ -0,0 +1,24 @@
+function inputmethod_setup(callback) {
+  SimpleTest.waitForExplicitFinish();
+  SimpleTest.requestCompleteLog();
+  let appInfo = SpecialPowers.Cc['@mozilla.org/xre/app-info;1']
+                .getService(SpecialPowers.Ci.nsIXULAppInfo);
+  if (appInfo.name != 'B2G') {
+    SpecialPowers.Cu.import("resource://gre/modules/Keyboard.jsm", this);
+  }
+
+  let prefs = [
+    ['dom.mozBrowserFramesEnabled', true],
+    ['network.disable.ipc.security', true],
+    // Enable navigator.mozInputMethod.
+    ['dom.mozInputMethod.enabled', true]
+  ];
+  SpecialPowers.pushPrefEnv({set: prefs}, function() {
+    SimpleTest.waitForFocus(callback);
+  });
+}
+
+function inputmethod_cleanup() {
+  SpecialPowers.wrap(navigator.mozInputMethod).setActive(false);
+  SimpleTest.finish();
+}
diff --git a/dom/inputmethod/mochitest/test_basic.html b/dom/inputmethod/mochitest/test_basic.html
new file mode 100644
index 000000000..bf22e99dd
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_basic.html
@@ -0,0 +1,212 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=932145
+-->
+<head>
+  <title>Basic test for InputMethod API.</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=932145">Mozilla Bug 932145</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+SimpleTest.requestFlakyTimeout("untriaged");
+
+// The input context.
+var gContext = null;
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+function runTest() {
+  let im = navigator.mozInputMethod;
+
+  im.oninputcontextchange = function() {
+    ok(true, 'inputcontextchange event was fired.');
+    im.oninputcontextchange = null;
+
+    gContext = im.inputcontext;
+    if (!gContext) {
+      ok(false, 'Should have a non-null inputcontext.');
+      inputmethod_cleanup();
+      return;
+    }
+
+    is(gContext.type, 'input', 'The input context type should match.');
+    is(gContext.inputType, 'text', 'The inputType should match.');
+    is(gContext.inputMode, 'verbatim', 'The inputMode should match.');
+    is(gContext.lang, 'zh', 'The language should match.');
+    is(gContext.text, 'Yuan', 'Should get the text.');
+    is(gContext.textBeforeCursor + gContext.textAfterCursor, 'Yuan',
+       'Should get the text around the cursor.');
+
+    test_setSelectionRange();
+  };
+
+  // Set current page as an input method.
+  SpecialPowers.wrap(im).setActive(true);
+
+  let iframe = document.createElement('iframe');
+  iframe.src = 'file_test_app.html';
+  iframe.setAttribute('mozbrowser', true);
+  document.body.appendChild(iframe);
+}
+
+function test_setSelectionRange() {
+  // Move cursor position to 2.
+  gContext.setSelectionRange(2, 0).then(function() {
+    is(gContext.selectionStart, 2, 'selectionStart was set successfully.');
+    is(gContext.selectionEnd, 2, 'selectionEnd was set successfully.');
+    test_sendKey();
+  }, function(e) {
+    ok(false, 'setSelectionRange failed:' + e.name);
+    console.error(e);
+    inputmethod_cleanup();
+  });
+}
+
+function test_sendKey() {
+  // Add '-' to current cursor posistion and move the cursor position to 3.
+  gContext.sendKey(0, '-'.charCodeAt(0), 0).then(function() {
+    is(gContext.text, 'Yu-an',
+       'sendKey should changed the input field correctly.');
+    is(gContext.textBeforeCursor + gContext.textAfterCursor, 'Yu-an',
+       'sendKey should changed the input field correctly.');
+    test_deleteSurroundingText();
+  }, function(e) {
+    ok(false, 'sendKey failed:' + e.name);
+    inputmethod_cleanup();
+  });
+}
+
+function test_deleteSurroundingText() {
+  // Remove one character before current cursor position and move the cursor
+  // position back to 2.
+  gContext.deleteSurroundingText(-1, 1).then(function() {
+    ok(true, 'deleteSurroundingText finished');
+    is(gContext.text, 'Yuan',
+       'deleteSurroundingText should changed the input field correctly.');
+    is(gContext.textBeforeCursor + gContext.textAfterCursor, 'Yuan',
+       'deleteSurroundingText should changed the input field correctly.');
+    test_replaceSurroundingText();
+  }, function(e) {
+    ok(false, 'deleteSurroundingText failed:' + e.name);
+    inputmethod_cleanup();
+  });
+}
+
+function test_replaceSurroundingText() {
+  // Replace 'Yuan' with 'Xulei'.
+  gContext.replaceSurroundingText('Xulei', -2, 4).then(function() {
+    ok(true, 'replaceSurroundingText finished');
+    is(gContext.text, 'Xulei',
+       'replaceSurroundingText changed the input field correctly.');
+    is(gContext.textBeforeCursor + gContext.textAfterCursor, 'Xulei',
+       'replaceSurroundingText changed the input field correctly.');
+    test_setComposition();
+  }, function(e) {
+    ok(false, 'replaceSurroundingText failed: ' + e.name);
+    inputmethod_cleanup();
+  });
+}
+
+function test_setComposition() {
+  gContext.setComposition('XXX').then(function() {
+    ok(true, 'setComposition finished');
+    test_endComposition();
+  }, function(e) {
+    ok(false, 'setComposition failed: ' + e.name);
+    inputmethod_cleanup();
+  });
+}
+
+function test_endComposition() {
+  gContext.endComposition('2013').then(function() {
+    is(gContext.text, 'Xulei2013',
+       'endComposition changed the input field correctly.');
+    is(gContext.textBeforeCursor + gContext.textAfterCursor, 'Xulei2013',
+       'endComposition changed the input field correctly.');
+    test_onSelectionChange();
+  }, function (e) {
+    ok(false, 'endComposition failed: ' + e.name);
+    inputmethod_cleanup();
+  });
+}
+
+function test_onSelectionChange() {
+  var sccTimeout = setTimeout(function() {
+    ok(false, 'selectionchange event not fired');
+    cleanup(true);
+  }, 3000);
+
+  function cleanup(failed) {
+    gContext.onselectionchange = null;
+    clearTimeout(sccTimeout);
+    if (failed) {
+      inputmethod_cleanup();
+    }
+    else {
+      test_onSurroundingTextChange();
+    }
+  }
+
+  gContext.onselectionchange = function(evt) {
+    ok(true, 'onselectionchange fired');
+    is(evt.detail.selectionStart, 10);
+    is(evt.detail.selectionEnd, 10);
+    ok(evt.detail.ownAction);
+  };
+
+  gContext.sendKey(0, 'j'.charCodeAt(0), 0).then(function() {
+    cleanup();
+  }, function(e) {
+    ok(false, 'sendKey failed: ' + e.name);
+    cleanup(true);
+  });
+}
+
+function test_onSurroundingTextChange() {
+  var sccTimeout = setTimeout(function() {
+    ok(false, 'surroundingtextchange event not fired');
+    cleanup(true);
+  }, 3000);
+
+  function cleanup(failed) {
+    gContext.onsurroundingtextchange = null;
+    clearTimeout(sccTimeout);
+    if (failed) {
+      inputmethod_cleanup();
+    }
+    else {
+      // in case we want more tests leave this
+      inputmethod_cleanup();
+    }
+  }
+
+  gContext.onsurroundingtextchange = function(evt) {
+    ok(true, 'onsurroundingtextchange fired');
+    is(evt.detail.text, 'Xulei2013jj');
+    is(evt.detail.textBeforeCursor, 'Xulei2013jj');
+    is(evt.detail.textAfterCursor, '');
+    ok(evt.detail.ownAction);
+  };
+
+  gContext.sendKey(0, 'j'.charCodeAt(0), 0).then(function() {
+    cleanup();
+  }, function(e) {
+    ok(false, 'sendKey failed: ' + e.name);
+    cleanup(true);
+  });
+}
+
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_bug1026997.html b/dom/inputmethod/mochitest/test_bug1026997.html
new file mode 100644
index 000000000..3d44e6cbd
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_bug1026997.html
@@ -0,0 +1,101 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1026997
+-->
+<head>
+  <title>SelectionChange on InputMethod API.</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1026997">Mozilla Bug 1026997</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+// The frame script running in file_test_app.html.
+function appFrameScript() {
+  let input = content.document.getElementById('test-input');
+
+  input.focus();
+
+  function next(start, end) {
+    input.setSelectionRange(start, end);
+  }
+
+  addMessageListener("test:KeyBoard:nextSelection", function(event) {
+    let json = event.json;
+    next(json[0], json[1]);
+  });
+}
+
+function runTest() {
+  let actions = [
+    [0, 4],
+    [1, 1],
+    [3, 3],
+    [2, 3]
+  ];
+
+  let counter = 0;
+  let mm = null;
+  let ic = null;
+
+  let im = navigator.mozInputMethod;
+  im.oninputcontextchange = function() {
+    ok(true, 'inputcontextchange event was fired.');
+    im.oninputcontextchange = null;
+
+    ic = im.inputcontext;
+    if (!ic) {
+      ok(false, 'Should have a non-null inputcontext.');
+      inputmethod_cleanup();
+      return;
+    }
+
+    ic.onselectionchange = function() {
+      is(ic.selectionStart, actions[counter][0], "start");
+      is(ic.selectionEnd, actions[counter][1], "end");
+
+      if (++counter === actions.length) {
+        inputmethod_cleanup();
+        return;
+      }
+
+      next();
+    };
+
+    next();
+  };
+
+  // Set current page as an input method.
+  SpecialPowers.wrap(im).setActive(true);
+
+  // Create an app frame to recieve keyboard inputs.
+  let app = document.createElement('iframe');
+  app.src = 'file_test_app.html';
+  app.setAttribute('mozbrowser', true);
+  document.body.appendChild(app);
+  app.addEventListener('mozbrowserloadend', function() {
+    mm = SpecialPowers.getBrowserFrameMessageManager(app);
+    mm.loadFrameScript('data:,(' + appFrameScript.toString() + ')();', false);
+    next();
+  });
+
+  function next() {
+    if (ic && mm) {
+      mm.sendAsyncMessage('test:KeyBoard:nextSelection', actions[counter]);
+    }
+  }
+}
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_bug1043828.html b/dom/inputmethod/mochitest/test_bug1043828.html
new file mode 100644
index 000000000..84c1dc089
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_bug1043828.html
@@ -0,0 +1,183 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1043828
+-->
+<head>
+  <title>Basic test for Switching Keyboards.</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1043828">Mozilla Bug 1043828</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+SimpleTest.requestFlakyTimeout("untriaged");
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+// The KB frame script running in Keyboard B.
+function kbFrameScript() {
+  function tryGetText() {
+    var ctx = content.navigator.mozInputMethod.inputcontext;
+    if (ctx) {
+      var p = ctx.getText();
+      p.then(function(){
+        sendAsyncMessage('test:InputMethod:getText:Resolve');
+      }, function(e){
+        sendAsyncMessage('test:InputMethod:getText:Reject');
+      });
+    } else {
+      dump("Could not get inputcontext") ;
+    }
+  }
+
+  addMessageListener('test:InputMethod:getText:Do', function(){
+    tryGetText();
+  });
+}
+
+function runTest() {
+  let app, keyboardA, keyboardB;
+  let getTextPromise;
+  let mmKeyboardA, mmKeyboardB;
+
+  /**
+   * Test flow:
+   * 1. Create two keyboard iframes & a mozbrowser iframe with a text field in it & focus the text
+   *    field.
+   * 2. Set keyboard frame A as active input. Wait 200ms.
+   * 3. Set keyboard frame B as active input. Wait 200ms.
+   * 4. Set keyboard frame A as inactive. Wait 200ms.
+   * 5. Allow frame b to use getText() with inputcontext to get the content from the text field
+   *    iframe. Wait 200ms.
+   * [Test would succeed if the Promise returned by getText() resolves correctly.
+   *  Test would fail if otherwise]
+   */
+
+  let path = location.pathname;
+  let basePath = location.protocol + '//' + location.host +
+               path.substring(0, path.lastIndexOf('/'));
+
+  const WAIT_TIME = 200;
+
+  // STEP 1: Create the frames.
+  function step1() {
+    // app
+    app = document.createElement('iframe');
+    app.src = basePath + '/file_test_app.html';
+    app.setAttribute('mozbrowser', true);
+    document.body.appendChild(app);
+
+    // keyboards
+    keyboardA = document.createElement('iframe');
+    keyboardA.setAttribute('mozbrowser', true);
+    document.body.appendChild(keyboardA);
+
+    keyboardB = document.createElement('iframe');
+    keyboardB.setAttribute('mozbrowser', true);
+    document.body.appendChild(keyboardB);
+
+    // simulate two different keyboard apps
+    let imeUrl = basePath + '/file_blank.html';
+
+    keyboardA.src = imeUrl;
+    keyboardB.src = imeUrl;
+
+    var handler = {
+      handleEvent: function(){
+        keyboardB.removeEventListener('mozbrowserloadend', this);
+
+        mmKeyboardB = SpecialPowers.getBrowserFrameMessageManager(keyboardB);
+
+        mmKeyboardB.loadFrameScript('data:,(' + kbFrameScript.toString() + ')();', false);
+
+        mmKeyboardB.addMessageListener('test:InputMethod:getText:Resolve', function() {
+          info('getText() was resolved');
+          inputmethod_cleanup();
+        });
+
+        mmKeyboardB.addMessageListener('test:InputMethod:getText:Reject', function() {
+          ok(false, 'getText() was rejected');
+          inputmethod_cleanup();
+        });
+
+        setTimeout(function(){
+          step2();
+        }, WAIT_TIME);
+      }
+    };
+
+    keyboardB.addEventListener('mozbrowserloadend', handler);
+  }
+
+  // STEP 2: Set keyboard A active
+  function step2() {
+    info('step2');
+    let req = keyboardA.setInputMethodActive(true);
+
+    req.onsuccess = function(){
+      setTimeout(function(){
+        step3();
+      }, WAIT_TIME);
+    };
+
+    req.onerror = function(){
+      ok(false, 'setInputMethodActive failed: ' + this.error.name);
+      inputmethod_cleanup();
+    };
+  }
+
+  // STEP 3: Set keyboard B active
+  function step3() {
+    info('step3');
+    let req = keyboardB.setInputMethodActive(true);
+
+    req.onsuccess = function(){
+      setTimeout(function(){
+        step4();
+      }, WAIT_TIME);
+    };
+
+    req.onerror = function(){
+      ok(false, 'setInputMethodActive failed: ' + this.error.name);
+      inputmethod_cleanup();
+    };
+  }
+
+  // STEP 4: Set keyboard A inactive
+  function step4() {
+    info('step4');
+    let req = keyboardA.setInputMethodActive(false);
+
+    req.onsuccess = function(){
+      setTimeout(function(){
+        step5();
+      }, WAIT_TIME);
+    };
+
+    req.onerror = function(){
+      ok(false, 'setInputMethodActive failed: ' + this.error.name);
+      inputmethod_cleanup();
+    };
+  }
+
+  // STEP 5: getText
+  function step5() {
+    info('step5');
+    mmKeyboardB.sendAsyncMessage('test:InputMethod:getText:Do');
+  }
+
+  step1();
+}
+
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_bug1059163.html b/dom/inputmethod/mochitest/test_bug1059163.html
new file mode 100644
index 000000000..c54a03b0e
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_bug1059163.html
@@ -0,0 +1,87 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1059163
+-->
+<head>
+  <title>Basic test for repeat sendKey events</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1059163">Mozilla Bug 1059163</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+inputmethod_setup(function() {
+  runTest();
+});
+
+// The frame script running in the file
+function appFrameScript() {
+  let document = content.document;
+  let window = content.document.defaultView;
+
+  let t = document.getElementById('text');
+  t.focus();
+
+  let range = document.createRange();
+  range.selectNodeContents(t);
+  range.collapse(false);
+  let selection = window.getSelection();
+  selection.removeAllRanges();
+  selection.addRange(range);
+
+  addMessageListener('test:InputMethod:clear', function() {
+    t.innerHTML = '';
+  });
+}
+
+function runTest() {
+  let im = navigator.mozInputMethod;
+
+  // Set current page as an input method.
+  SpecialPowers.wrap(im).setActive(true);
+
+  // Create an app frame to recieve keyboard inputs.
+  let app = document.createElement('iframe');
+  app.src = 'file_test_bug1066515.html';
+  app.setAttribute('mozbrowser', true);
+  document.body.appendChild(app);
+
+  app.addEventListener('mozbrowserloadend', function() {
+    let mm = SpecialPowers.getBrowserFrameMessageManager(app);
+    mm.loadFrameScript('data:,(' + encodeURIComponent(appFrameScript.toString()) + ')();', false);
+
+    im.oninputcontextchange = function() {
+      is(im.inputcontext.type, 'contenteditable', 'type');
+      is(im.inputcontext.inputType, 'textarea', 'inputType');
+
+      if (im.inputcontext) {
+        im.oninputcontextchange = null;
+        register();
+      }
+    };
+
+    function register() {
+      im.inputcontext.onselectionchange = function() {
+        im.inputcontext.onselectionchange = null;
+
+        is(im.inputcontext.textBeforeCursor, '', 'textBeforeCursor');
+        is(im.inputcontext.textAfterCursor, '', 'textAfterCursor');
+        is(im.inputcontext.selectionStart, 0, 'selectionStart');
+        is(im.inputcontext.selectionEnd, 0, 'selectionEnd');
+
+        inputmethod_cleanup();
+      };
+
+      mm.sendAsyncMessage('test:InputMethod:clear');
+    }
+  });
+}
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_bug1066515.html b/dom/inputmethod/mochitest/test_bug1066515.html
new file mode 100644
index 000000000..56fe10772
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_bug1066515.html
@@ -0,0 +1,93 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1066515
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1066515</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1066515">Mozilla Bug 1066515</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+// The input context.
+var gContext = null;
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+function runTest() {
+  let im = navigator.mozInputMethod;
+
+  im.oninputcontextchange = function() {
+    ok(true, 'inputcontextchange event was fired.');
+    im.oninputcontextchange = null;
+
+    gContext = im.inputcontext;
+    if (!gContext) {
+      ok(false, 'Should have a non-null inputcontext.');
+      inputmethod_cleanup();
+      return;
+    }
+
+    test_replaceSurroundingTextWithinTextNode();
+  };
+
+  // Set current page as an input method.
+  SpecialPowers.wrap(im).setActive(true);
+
+  let iframe = document.createElement('iframe');
+  iframe.src = 'file_test_sms_app_1066515.html';
+  iframe.setAttribute('mozbrowser', true);
+  document.body.appendChild(iframe);
+}
+
+function test_replaceSurroundingTextWithinTextNode() {
+  // Set cursor position after 'f'.
+  gContext.setSelectionRange(1, 0);
+
+  // Replace 'fxos' to 'Hitooo' which the range is within current text node.
+  gContext.replaceSurroundingText('Hitooo', -1, 4).then(function() {
+    gContext.getText().then(function(text) {
+      is(text, 'Hitooo\nhello world', 'replaceSurroundingText successfully.');
+      test_replaceSurroundingTextSpanMultipleNodes();
+    }, function(e) {
+      ok(false, 'getText failed: ' + e.name);
+      inputmethod_cleanup();
+    });
+  }, function(e) {
+    ok(false, 'replaceSurroundingText failed: ' + e.name);
+    inputmethod_cleanup();
+  });
+}
+
+function test_replaceSurroundingTextSpanMultipleNodes() {
+  // Set cursor position to the beginning.
+  gContext.setSelectionRange(0, 0);
+
+  // Replace whole content editable element to 'abc'.
+  gContext.replaceSurroundingText('abc', 0, 100).then(function() {
+    gContext.getText().then(function(text) {
+      is(text, 'abc', 'replaceSurroundingText successfully.');
+      inputmethod_cleanup();
+    }, function(e) {
+      ok(false, 'getText failed: ' + e.name);
+      inputmethod_cleanup();
+    });
+  }, function(e) {
+    ok(false, 'replaceSurroundingText failed: ' + e.name);
+    inputmethod_cleanup();
+  });
+}
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/inputmethod/mochitest/test_bug1137557.html b/dom/inputmethod/mochitest/test_bug1137557.html
new file mode 100644
index 000000000..1f5053662
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_bug1137557.html
@@ -0,0 +1,1799 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1137557
+-->
+<head>
+  <title>Test for new API arguments accepting D3E properties</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1137557">Mozilla Bug 1137557</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+let gEventDetails = [];
+let gCurrentValue = '';
+let gTestDescription = '';
+
+let appFrameScript = function appFrameScript() {
+  let input = content.document.body.firstElementChild;
+
+  input.focus();
+
+  function sendEventDetail(evt) {
+    var eventDetail;
+
+    switch (evt.type) {
+      case 'compositionstart':
+      case 'compositionupdate':
+      case 'compositionend':
+        eventDetail = {
+          type: evt.type,
+          value: input.value,
+          data: evt.data
+        };
+        break;
+
+      case 'input':
+        eventDetail = {
+          type: evt.type,
+          value: input.value
+        };
+        break;
+
+      default: // keyboard events
+        eventDetail = {
+          type: evt.type,
+          charCode: evt.charCode,
+          keyCode: evt.keyCode,
+          key: evt.key,
+          code: evt.code,
+          location: evt.location,
+          repeat: evt.repeat,
+          value: input.value,
+          shift: evt.getModifierState('Shift'),
+          capsLock: evt.getModifierState('CapsLock'),
+          control: evt.getModifierState('Control'),
+          alt: evt.getModifierState('Alt')
+        };
+        break;
+    }
+
+    sendAsyncMessage('test:eventDetail', eventDetail);
+  }
+
+  input.addEventListener('compositionstart', sendEventDetail);
+  input.addEventListener('compositionupdate', sendEventDetail);
+  input.addEventListener('compositionend', sendEventDetail);
+  input.addEventListener('input', sendEventDetail);
+  input.addEventListener('keydown', sendEventDetail);
+  input.addEventListener('keypress', sendEventDetail);
+  input.addEventListener('keyup', sendEventDetail);
+};
+
+function waitForInputContextChange() {
+  return new Promise((resolve) => {
+    navigator.mozInputMethod.oninputcontextchange = resolve;
+  });
+}
+
+function assertEventDetail(expectedDetails, testName) {
+  is(gEventDetails.length, expectedDetails.length,
+    testName + ' expects ' + expectedDetails.map(d => d.type).join(', ') + ' events, got ' + gEventDetails.map(d => d.type).join(', '));
+
+  expectedDetails.forEach((expectedDetail, j) => {
+    for (let key in expectedDetail) {
+      is(gEventDetails[j][key], expectedDetail[key],
+        testName + ' expects ' + key + ' of ' + gEventDetails[j].type + ' to be equal to ' + expectedDetail[key]);
+    }
+  });
+}
+
+function sendKeyAndAssertResult(testdata) {
+  var dict = testdata.dict;
+  var testName = gTestDescription + 'sendKey(' + JSON.stringify(dict) + ')';
+  var promise = navigator.mozInputMethod.inputcontext.sendKey(dict);
+
+  if (testdata.expectedReject) {
+    promise = promise
+      .then(() => {
+        ok(false, testName + ' should not resolve.');
+      }, (e) => {
+        ok(true, testName + ' rejects.');
+        ok(e instanceof testdata.expectedReject, 'Reject with type.');
+      })
+
+    return promise;
+  }
+
+  promise = promise
+    .then((res) => {
+      is(res, true,
+        testName + ' should resolve to true.');
+
+      var expectedEventDetail = [];
+
+      var expectedValues = testdata.expectedValues;
+
+      expectedEventDetail.push({
+        type: 'keydown',
+        key: expectedValues.key,
+        charCode: 0,
+        code: expectedValues.code || '',
+        keyCode: expectedValues.keyCode || 0,
+        location: expectedValues.location ? expectedValues.location : 0,
+        repeat: expectedValues.repeat || false,
+        value: gCurrentValue,
+        shift: false,
+        capsLock: false,
+        control: false,
+        alt: false
+      });
+
+      if (testdata.expectedKeypress) {
+        expectedEventDetail.push({
+          type: 'keypress',
+          key: expectedValues.key,
+          charCode: expectedValues.charCode,
+          code: expectedValues.code || '',
+          keyCode: expectedValues.charCode ? 0 : expectedValues.keyCode,
+          location: expectedValues.location ? expectedValues.location : 0,
+          repeat: expectedValues.repeat || false,
+          value: gCurrentValue,
+          shift: false,
+          capsLock: false,
+          control: false,
+          alt: false
+        });
+      }
+
+      if (testdata.expectedInput) {
+        switch (testdata.expectedInput) {
+          case 'Enter':
+            gCurrentValue += '\n';
+            break;
+          case 'Backspace':
+            gCurrentValue =
+              gCurrentValue.substr(0, gCurrentValue.length - 1);
+            break;
+          default:
+            gCurrentValue += testdata.expectedInput;
+            break;
+        }
+
+        expectedEventDetail.push({
+          type: 'input',
+          value: gCurrentValue
+        });
+      }
+
+      if (!testdata.expectedRepeat) {
+        expectedEventDetail.push({
+          type: 'keyup',
+          key: expectedValues.key,
+          charCode: 0,
+          code: expectedValues.code || '',
+          keyCode: expectedValues.keyCode || 0,
+          location: expectedValues.location ? expectedValues.location : 0,
+          repeat: expectedValues.repeat || false,
+          value: gCurrentValue,
+          shift: false,
+          capsLock: false,
+          control: false,
+          alt: false
+        });
+      }
+
+      assertEventDetail(expectedEventDetail, testName);
+      gEventDetails = [];
+    }, (e) => {
+      ok(false, testName + ' should not reject. ' + e);
+    });
+
+  return promise;
+}
+
+function runSendKeyAlphabetTests() {
+  gTestDescription = 'runSendKeyAlphabetTests(): ';
+  var promiseQueue = Promise.resolve();
+
+  // Test the plain alphabets
+  var codeA = 'A'.charCodeAt(0);
+  for (var i = 0; i < 26; i++) {
+    // callbacks in then() are deferred; must only reference these block-scoped
+    // variable instead of i.
+    let keyCode = codeA + i;
+    let code = 'Key' + String.fromCharCode(keyCode);
+
+    [String.fromCharCode(keyCode),
+      String.fromCharCode(keyCode).toLowerCase()]
+    .forEach((chr) => {
+      // Test plain alphabet
+      promiseQueue = promiseQueue.then(() => {
+        return sendKeyAndAssertResult({
+          dict: {
+            key: chr
+          },
+          expectedKeypress: true,
+          expectedInput: chr,
+          expectedValues: {
+            key: chr, code: '',
+            keyCode: keyCode,
+            charCode: chr.charCodeAt(0)
+          }
+        });
+      });
+
+      // Test plain alphabet with keyCode set
+      promiseQueue = promiseQueue.then(() => {
+        return sendKeyAndAssertResult({
+          dict: {
+            key: chr,
+            keyCode: keyCode
+          },
+          expectedKeypress: true,
+          expectedInput: chr,
+          expectedValues: {
+            key: chr, code: '',
+            keyCode: keyCode,
+            charCode: chr.charCodeAt(0)
+          }
+        });
+      });
+
+      // Test plain alphabet with keyCode set to keyCode + 1,
+      // expects keyCode to follow key value and ignore the incorrect value.
+      promiseQueue = promiseQueue.then(() => {
+        return sendKeyAndAssertResult({
+          dict: {
+            key: chr,
+            keyCode: keyCode + 1
+          },
+          expectedKeypress: true,
+          expectedInput: chr,
+          expectedValues: {
+            key: chr, code: '',
+            keyCode: keyCode,
+            charCode: chr.charCodeAt(0)
+          }
+        });
+      });
+
+      // Test plain alphabet with code set
+      promiseQueue = promiseQueue.then(() => {
+        return sendKeyAndAssertResult({
+          dict: {
+            key: chr,
+            code: code
+          },
+          expectedKeypress: true,
+          expectedInput: chr,
+          expectedValues: {
+            key: chr, code: code,
+            keyCode: keyCode,
+            charCode: chr.charCodeAt(0)
+          }
+        });
+      });
+
+      // Test plain alphabet with code set to Digit1,
+      // expects keyCode to follow key value.
+      promiseQueue = promiseQueue.then(() => {
+        return sendKeyAndAssertResult({
+          dict: {
+            key: chr,
+            code: 'Digit1'
+          },
+          expectedKeypress: true,
+          expectedInput: chr,
+          expectedValues: {
+            key: chr, code: 'Digit1',
+            keyCode: keyCode,
+            charCode: chr.charCodeAt(0)
+          }
+        });
+      });
+
+      // Test plain alphabet with keyCode set to DOM_VK_1,
+      // expects keyCode to follow key value.
+      promiseQueue = promiseQueue.then(() => {
+        return sendKeyAndAssertResult({
+          dict: {
+            key: chr,
+            keyCode: KeyboardEvent.DOM_VK_1
+          },
+          expectedKeypress: true,
+          expectedInput: chr,
+          expectedValues: {
+            key: chr, code: '',
+            keyCode: keyCode,
+            charCode: chr.charCodeAt(0)
+          }
+        });
+      });
+
+      // Test plain alphabet with code set to Digit1
+      // and keyCode set to DOM_VK_1,
+      // expects keyCode to follow key value.
+      promiseQueue = promiseQueue.then(() => {
+        return sendKeyAndAssertResult({
+          dict: {
+            key: chr,
+            code: 'Digit1',
+            keyCode: KeyboardEvent.DOM_VK_1
+          },
+          expectedKeypress: true,
+          expectedInput: chr,
+          expectedValues: {
+            key: chr, code: 'Digit1',
+            keyCode: keyCode,
+            charCode: chr.charCodeAt(0)
+          }
+        });
+      });
+    });
+  }
+
+  return promiseQueue;
+}
+
+function runSendKeyNumberTests() {
+  gTestDescription = 'runSendKeyNumberTests(): ';
+  var promiseQueue = Promise.resolve();
+
+  // Test numbers
+  var code0 = '0'.charCodeAt(0);
+  for (var i = 0; i < 10; i++) {
+    // callbacks in then() are deferred; must only reference these block-scoped
+    // variable instead of i.
+    let keyCode = code0 + i;
+    let chr = String.fromCharCode(keyCode);
+
+    // Test plain number
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: '',
+          keyCode: keyCode,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain number with keyCode set
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          keyCode: keyCode
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: '',
+          keyCode: keyCode,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain number with keyCode set to keyCode + 1,
+    // expects keyCode to follow key value and ignore the incorrect value.
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          keyCode: keyCode + 1
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: '',
+          keyCode: keyCode,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain number with code set
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          code: 'Digit' + chr
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: 'Digit' + chr,
+          keyCode: keyCode,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain upper caps alphabet with code set to KeyA,
+    // expects keyCode to follow key value.
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          code: 'KeyA'
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: 'KeyA',
+          keyCode: keyCode,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain upper caps alphabet with code set to KeyA,
+    // and keyCode set to DOM_VK_A.
+    // expects keyCode to follow key value.
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          code: 'KeyA',
+          keyCode: KeyboardEvent.DOM_VK_A
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: 'KeyA',
+          keyCode: keyCode,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+  }
+
+  return promiseQueue;
+}
+
+function runSendKeyDvorakTests() {
+  gTestDescription = 'runSendKeyDvorakTests(): ';
+  var promiseQueue = Promise.resolve();
+
+  // Test Dvorak layout emulation
+  var qwertyCodeForDvorakKeys = [
+    'KeyR', 'KeyT', 'KeyY', 'KeyU', 'KeyI', 'KeyO', 'KeyP',
+    'KeyA', 'KeyS', 'KeyD', 'KeyF', 'KeyG',
+    'KeyH', 'KeyJ', 'KeyK', 'KeyL', 'Semicolon',
+    'KeyX', 'KeyC', 'KeyV', 'KeyB', 'KeyN',
+    'KeyM', 'Comma', 'Period', 'Slash'];
+  var dvorakKeys = 'PYFGCRL' +
+    'AOEUIDHTNS' +
+    'QJKXBMWVZ';
+  for (var i = 0; i < dvorakKeys.length; i++) {
+    // callbacks in then() are deferred; must only reference these block-scoped
+    // variable instead of i.
+    let keyCode = dvorakKeys.charCodeAt(i);
+    let code = qwertyCodeForDvorakKeys[i];
+
+    [dvorakKeys.charAt(i), dvorakKeys.charAt(i).toLowerCase()]
+    .forEach((chr) => {
+      // Test alphabet with code set to Qwerty code,
+      // expects keyCode to follow key value.
+      // (This is *NOT* the expected scenario for emulating a Dvorak keyboard,
+      //  even though expected results are the same.)
+      promiseQueue = promiseQueue.then(() => {
+        return sendKeyAndAssertResult({
+          dict: {
+            key: chr,
+            code: code
+          },
+          expectedKeypress: true,
+          expectedInput: chr,
+          expectedValues: {
+            key: chr, code: code,
+            keyCode: keyCode,
+            charCode: chr.charCodeAt(0)
+          }
+        });
+      });
+
+      // Test alphabet with code set to Qwerty code and keyCode set,
+      // expects keyCode to follow key/keyCode value.
+      // (This is the expected scenario for emulating a Dvorak keyboard)
+      promiseQueue = promiseQueue.then(() => {
+        return sendKeyAndAssertResult({
+          dict: {
+            key: chr,
+            keyCode: keyCode,
+            code: code
+          },
+          expectedKeypress: true,
+          expectedInput: chr,
+          expectedValues: {
+            key: chr, code: code,
+            keyCode: keyCode,
+            charCode: chr.charCodeAt(0)
+          }
+        });
+      });
+    });
+  }
+
+  var qwertyCodeForDvorakSymbols = [
+    'Minus', 'Equal',
+    'KeyQ', 'KeyW', 'KeyE', 'BracketLeft', 'BracketRight', 'Backslash',
+    'Quote', 'KeyZ'];
+
+  var shiftDvorakSymbols = '{}\"<>?+|_:';
+  var dvorakSymbols = '[]\',./=\\-;';
+  var dvorakSymbolsKeyCodes = [
+    KeyboardEvent.DOM_VK_OPEN_BRACKET,
+    KeyboardEvent.DOM_VK_CLOSE_BRACKET,
+    KeyboardEvent.DOM_VK_QUOTE,
+    KeyboardEvent.DOM_VK_COMMA,
+    KeyboardEvent.DOM_VK_PERIOD,
+    KeyboardEvent.DOM_VK_SLASH,
+    KeyboardEvent.DOM_VK_EQUALS,
+    KeyboardEvent.DOM_VK_BACK_SLASH,
+    KeyboardEvent.DOM_VK_HYPHEN_MINUS,
+    KeyboardEvent.DOM_VK_SEMICOLON
+  ];
+
+  for (var i = 0; i < dvorakSymbols.length; i++) {
+    // callbacks in then() are deferred; must only reference these block-scoped
+    // variable instead of i.
+    let keyCode = dvorakSymbolsKeyCodes[i];
+    let code = qwertyCodeForDvorakSymbols[i];
+
+    [dvorakSymbols.charAt(i), shiftDvorakSymbols.charAt(i)]
+    .forEach((chr) => {
+      // Test symbols with code set to Qwerty code,
+      // expects keyCode to be 0.
+      // (This is *NOT* the expected scenario for emulating a Dvorak keyboard)
+      promiseQueue = promiseQueue.then(() => {
+        return sendKeyAndAssertResult({
+          dict: {
+            key: chr,
+            code: code
+          },
+          expectedKeypress: true,
+          expectedInput: chr,
+          expectedValues: {
+            key: chr, code: code,
+            keyCode: 0,
+            charCode: chr.charCodeAt(0)
+          }
+        });
+      });
+
+      // Test alphabet with code set to Qwerty code and keyCode set,
+      // expects keyCode to follow keyCode value.
+      // (This is the expected scenario for emulating a Dvorak keyboard)
+      promiseQueue = promiseQueue.then(() => {
+        return sendKeyAndAssertResult({
+          dict: {
+            key: chr,
+            keyCode: keyCode,
+            code: code
+          },
+          expectedKeypress: true,
+          expectedInput: chr,
+          expectedValues: {
+            key: chr, code: code,
+            keyCode: keyCode,
+            charCode: chr.charCodeAt(0)
+          }
+        });
+      });
+    });
+  }
+
+  return promiseQueue;
+}
+
+function runSendKeyDigitKeySymbolsTests() {
+  gTestDescription = 'runSendKeyDigitKeySymbolsTests(): ';
+  var promiseQueue = Promise.resolve();
+
+  var digitKeySymbols = ')!@#$%^&*(';
+  for (var i = 0; i < digitKeySymbols.length; i++) {
+    // callbacks in then() are deferred; must only reference these block-scoped
+    // variable instead of i.
+    let keyCode = KeyboardEvent['DOM_VK_' + i];
+    let chr = digitKeySymbols.charAt(i);
+    let code = 'Digit' + i;
+
+    // Test plain symbol
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: '', keyCode: 0,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain symbol with keyCode set
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          keyCode: keyCode
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: '',
+          keyCode: keyCode,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain symbol with code set
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          code: code
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: code,
+          keyCode: 0,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain symbol with code set to KeyA,
+    // expects keyCode to be 0.
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          code: 'KeyA'
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: 'KeyA',
+          keyCode: 0,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain symbol with keyCode set to DOM_VK_A,
+    // expects keyCode to follow the keyCode set.
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          keyCode: KeyboardEvent.DOM_VK_A
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: '',
+          keyCode: KeyboardEvent.DOM_VK_A,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain symbol with code set to KeyA
+    // expects keyCode to follow the keyCode set.
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          code: 'KeyA',
+          keyCode: KeyboardEvent.DOM_VK_A
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: 'KeyA',
+          keyCode: KeyboardEvent.DOM_VK_A,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+  }
+
+  return promiseQueue;
+}
+
+function runSendKeyUSKeyboardSymbolsTests() {
+  gTestDescription = 'runSendKeyUSKeyboardSymbolsTests(): ';
+  var promiseQueue = Promise.resolve();
+
+  // Test printable symbols on US Keyboard
+  var symbols = ' ;:=+,<-_.>/?`~[{\\|]}\'\"';
+  var symbolKeyCodes = [
+    KeyboardEvent.DOM_VK_SPACE,
+    KeyboardEvent.DOM_VK_SEMICOLON,
+    KeyboardEvent.DOM_VK_SEMICOLON,
+    KeyboardEvent.DOM_VK_EQUALS,
+    KeyboardEvent.DOM_VK_EQUALS,
+    KeyboardEvent.DOM_VK_COMMA,
+    KeyboardEvent.DOM_VK_COMMA,
+    KeyboardEvent.DOM_VK_HYPHEN_MINUS,
+    KeyboardEvent.DOM_VK_HYPHEN_MINUS,
+    KeyboardEvent.DOM_VK_PERIOD,
+    KeyboardEvent.DOM_VK_PERIOD,
+    KeyboardEvent.DOM_VK_SLASH,
+    KeyboardEvent.DOM_VK_SLASH,
+    KeyboardEvent.DOM_VK_BACK_QUOTE,
+    KeyboardEvent.DOM_VK_BACK_QUOTE,
+    KeyboardEvent.DOM_VK_OPEN_BRACKET,
+    KeyboardEvent.DOM_VK_OPEN_BRACKET,
+    KeyboardEvent.DOM_VK_BACK_SLASH,
+    KeyboardEvent.DOM_VK_BACK_SLASH,
+    KeyboardEvent.DOM_VK_CLOSE_BRACKET,
+    KeyboardEvent.DOM_VK_CLOSE_BRACKET,
+    KeyboardEvent.DOM_VK_QUOTE,
+    KeyboardEvent.DOM_VK_QUOTE
+  ];
+  var symbolCodes = [
+    'Space',
+    'Semicolon',
+    'Semicolon',
+    'Equal',
+    'Equal',
+    'Comma',
+    'Comma',
+    'Minus',
+    'Minus',
+    'Period',
+    'Period',
+    'Slash',
+    'Slash',
+    'Backquote',
+    'Backquote',
+    'BracketLeft',
+    'BracketLeft',
+    'Backslash',
+    'Backslash',
+    'BracketRight',
+    'BracketRight',
+    'Quote',
+    'Quote'
+  ];
+  for (var i = 0; i < symbols.length; i++) {
+    // callbacks in then() are deferred; must only reference these block-scoped
+    // variable instead of i.
+    let keyCode = symbolKeyCodes[i];
+    let chr = symbols.charAt(i);
+    let code = symbolCodes[i];
+
+    // Test plain symbol
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: '',
+          keyCode: 0,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain symbol with keyCode set
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          keyCode: keyCode
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: '',
+          keyCode: keyCode,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain symbol with code set
+    // expects keyCode to be 0.
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          code: code
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: code,
+          keyCode: 0,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain symbol with code set to KeyA,
+    // expects keyCode to be 0.
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          code: 'KeyA'
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: 'KeyA',
+          keyCode: 0,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain symbol with keyCode set to DOM_VK_A,
+    // expects keyCode to follow the keyCode set.
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          keyCode: KeyboardEvent.DOM_VK_A
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: '',
+          keyCode: KeyboardEvent.DOM_VK_A,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain symbol with code set to KeyA
+    // expects keyCode to follow the keyCode set.
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          code: 'KeyA',
+          keyCode: KeyboardEvent.DOM_VK_A
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: 'KeyA',
+          keyCode: KeyboardEvent.DOM_VK_A,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+  }
+
+  return promiseQueue;
+}
+
+function runSendKeyGreekLettersTests() {
+  gTestDescription = 'runSendKeyGreekLettersTests(): ';
+  var promiseQueue = Promise.resolve();
+
+  // Test Greek letters
+  var greekLetters =
+    '\u0391\u0392\u0393\u0394\u0395\u0396\u0397\u0398\u0399\u039a\u039b\u039c' +
+    '\u039d\u039e\u039f\u03a0\u03a1\u03a3\u03a4\u03a5\u03a6\u03a7\u03a8\u03a9' +
+    '\u03b1\u03b2\u03b3\u03b4\u03b5\u03b6\u03b7\u03b8\u03b9\u03ba\u03bb\u03bc' +
+    '\u03bd\u03be\u03bf\u03c0\u03c1\u03c3\u03c4\u03c5\u03c6\u03c7\u03c8\u03c9' +
+    '\u03c2';
+  var greekLettersLayoutMap =
+    'ABGDEZHUIKLMNJOPRSTYFXCVABGDEZHUIKLMNJOPRSTYFXCVQ';
+  for (var i = 0; i < greekLetters.length; i++) {
+    // callbacks in then() are deferred; must only reference these block-scoped
+    // variable instead of i.
+    let keyCode = greekLettersLayoutMap.charCodeAt(i);
+    let chr = greekLetters.charAt(i);
+    let code = 'Key' + greekLettersLayoutMap.charAt(i);
+
+    // Test plain alphabet
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: '',
+          keyCode: 0,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain alphabet with keyCode set
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          keyCode: keyCode
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: '',
+          keyCode: keyCode,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain alphabet with code set,
+    // expects keyCode to be 0.
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          code: code
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: code,
+          keyCode: 0,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain alphabet with code set to Digit1,
+    // expects keyCode to be 0.
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          code: 'Digit1'
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: 'Digit1',
+          keyCode: 0,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+    // Test plain alphabet with code set to Digit1,
+    // and keyCode set to DOM_VK_A.
+    // expects keyCode to follow the keyCode set.
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: chr,
+          code: 'Digit1',
+          keyCode: KeyboardEvent.DOM_VK_A
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: 'Digit1',
+          keyCode: KeyboardEvent.DOM_VK_A,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+  }
+
+  return promiseQueue;
+}
+
+function runSendKeyEnterTests() {
+  gTestDescription = 'runSendKeyEnterTests(): ';
+  var promiseQueue = Promise.resolve();
+
+  // Test Enter with code unset
+  promiseQueue = promiseQueue.then(() => {
+    return sendKeyAndAssertResult({
+      dict: {
+        key: 'Enter'
+      },
+      expectedKeypress: true,
+      expectedInput: '\n',
+      expectedValues: {
+        key: 'Enter', code: '',
+        keyCode: KeyboardEvent.DOM_VK_RETURN,
+        charCode: 0
+      }
+    });
+  });
+
+  // Test Enter with code set
+  promiseQueue = promiseQueue.then(() => {
+    return sendKeyAndAssertResult({
+      dict: {
+        key: 'Enter',
+        code: 'Enter'
+      },
+      expectedKeypress: true,
+      expectedInput: '\n',
+      expectedValues: {
+        key: 'Enter', code: 'Enter',
+        keyCode: KeyboardEvent.DOM_VK_RETURN,
+        charCode: 0
+      }
+    });
+  });
+
+  // Test Enter with keyCode explict set to zero
+  promiseQueue = promiseQueue.then(() => {
+    return sendKeyAndAssertResult({
+      dict: {
+        key: 'Enter',
+        keyCode: 0
+      },
+      expectedKeypress: true,
+      expectedValues: {
+        key: 'Enter', code: '',
+        keyCode: 0,
+        charCode: 0
+      }
+    });
+  });
+
+  return promiseQueue;
+}
+
+function runSendKeyNumpadTests() {
+  gTestDescription = 'runSendKeyNumpadTests(): ';
+  var promiseQueue = Promise.resolve();
+
+  var tests = [];
+  ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
+    .forEach(function(key) {
+      let charCode = key.charCodeAt(0);
+
+      tests.push({
+        dict: {
+          key: key,
+          code: 'Numpad' + key
+        },
+        expectedKeypress: true,
+        expectedInput: key,
+        expectedValues: {
+          key: key, code: 'Numpad' + key,
+          keyCode: charCode, charCode: charCode,
+          location: KeyboardEvent.DOM_KEY_LOCATION_NUMPAD
+        }
+      });
+    });
+
+  [['+', 'NumpadAdd'],
+   [',', 'NumpadComma'],
+   ['.', 'NumpadDecimal'],
+   ['.', 'NumpadComma'],  // Locale-specific NumpadComma
+   [',', 'NumpadDecimal'],  // Locale-specific NumpadDecimal
+   ['/', 'NumpadDivide'],
+   ['=', 'NumpadEqual'],
+   // ['#', 'NumpadHash'], // Not supported yet.
+   ['*', 'NumpadMultiply'],
+   ['(', 'NumpadParenLeft'],
+   [')', 'NumpadParenRight'],
+   // ['*', 'NumpadStar'], // Not supported yet.
+   ['-', 'NumpadSubtract']].forEach(function([key, code]) {
+    tests.push({
+      dict: {
+        key: key,
+        code: code
+      },
+      expectedKeypress: true,
+      expectedInput: key,
+      expectedValues: {
+        key: key, code: code, keyCode: 0, charCode: key.charCodeAt(0),
+        location: KeyboardEvent.DOM_KEY_LOCATION_NUMPAD
+      }
+    });
+  });
+
+  [
+    'NumpadComma', // Locale-specific NumpadComma -- outputs nothing
+    'NumpadClear',
+    'NumpadClearEntry',
+    'NumpadMemoryAdd',
+    'NumpadMemoryClear',
+    'NumpadMemoryRecall',
+    'NumpadMemoryStore',
+    'NumpadMemorySubtract'
+  ].forEach(function(code) {
+    tests.push({
+      dict: {
+        key: 'Unidentified',
+        code: code
+      },
+      expectedKeypress: true,
+      expectedValues: {
+        key: 'Unidentified', code: code, keyCode: 0, charCode: 0,
+        location: KeyboardEvent.DOM_KEY_LOCATION_NUMPAD
+      }
+    });
+  });
+
+  tests.push({
+    dict: {
+      key: 'Enter',
+      code: 'NumpadEnter'
+    },
+    expectedKeypress: true,
+    expectedInput: '\n',
+    expectedValues: {
+      key: 'Enter', code: 'NumpadEnter',
+      keyCode: KeyboardEvent.DOM_VK_RETURN, charCode: 0,
+      location: KeyboardEvent.DOM_KEY_LOCATION_NUMPAD
+    }
+  });
+
+  tests.push({
+    dict: {
+      key: 'Backspace',
+      code: 'NumpadBackspace'
+    },
+    expectedKeypress: true,
+    expectedInput: 'Backspace', // Special value
+    expectedValues: {
+      key: 'Backspace', code: 'NumpadBackspace',
+      keyCode: KeyboardEvent.DOM_VK_BACK_SPACE, charCode: 0,
+      location: KeyboardEvent.DOM_KEY_LOCATION_NUMPAD
+    }
+  });
+
+  tests.forEach((test) => {
+    promiseQueue = promiseQueue.then(() => {
+      return sendKeyAndAssertResult(test);
+    });
+  });
+
+  return promiseQueue;
+}
+
+function runSendKeyRejectionTests() {
+  gTestDescription = 'runSendKeyRejectionTests(): ';
+  var promiseQueue = Promise.resolve();
+
+  promiseQueue = promiseQueue.then(() => {
+    return sendKeyAndAssertResult({
+      dict: undefined,
+      expectedReject: TypeError
+    });
+  });
+
+  return promiseQueue;
+}
+
+function setCompositionAndAssertResult(testdata) {
+  var dict = testdata.dict;
+  var testName;
+  var promise;
+
+  if (dict) {
+    testName = gTestDescription +
+      'setComposition(' + testdata.text +
+      ', undefined, undefined, '
+      + JSON.stringify(dict) + ')';
+    promise = navigator.mozInputMethod.inputcontext
+      .setComposition(testdata.text, undefined, undefined, dict);
+  } else {
+    testName = gTestDescription +
+      'setComposition(' + testdata.text + ')';
+    promise = navigator.mozInputMethod.inputcontext
+      .setComposition(testdata.text);
+  }
+
+  if (testdata.expectedReject) {
+    promise = promise
+      .then(() => {
+        ok(false, testName + ' should not resolve.');
+      }, (e) => {
+        ok(true, testName + ' rejects.');
+        ok(e instanceof testdata.expectedReject, 'Reject with type.');
+      })
+
+    return promise;
+  }
+
+  promise = promise
+    .then((res) => {
+      is(res, true,
+        testName + ' should resolve to true.');
+
+      var expectedEventDetail = [];
+
+      var expectedValues = testdata.expectedValues;
+
+      if (testdata.expectsKeyEvents &&
+          (testdata.startsComposition ||
+           testdata.dispatchKeyboardEventDuringComposition)) {
+        expectedEventDetail.push({
+          type: 'keydown',
+          key: expectedValues.key,
+          charCode: 0,
+          code: expectedValues.code || '',
+          keyCode: expectedValues.keyCode || 0,
+          location: 0,
+          repeat: expectedValues.repeat || false,
+          value: gCurrentValue,
+          shift: false,
+          capsLock: false,
+          control: false,
+          alt: false
+        });
+      }
+
+      if (testdata.startsComposition) {
+        expectedEventDetail.push({
+          type: 'compositionstart',
+          data: '',
+          value: gCurrentValue
+        });
+      }
+
+      expectedEventDetail.push({
+        type: 'compositionupdate',
+        data: testdata.text,
+        value: gCurrentValue
+      });
+
+      expectedEventDetail.push({
+        type: 'input',
+        value: gCurrentValue += testdata.expectedInput
+      });
+
+      if (testdata.expectsKeyEvents &&
+          testdata.dispatchKeyboardEventDuringComposition) {
+        expectedEventDetail.push({
+          type: 'keyup',
+          key: expectedValues.key,
+          charCode: 0,
+          code: expectedValues.code || '',
+          keyCode: expectedValues.keyCode || 0,
+          location: 0,
+          repeat: expectedValues.repeat || false,
+          value: gCurrentValue,
+          shift: false,
+          capsLock: false,
+          control: false,
+          alt: false
+        });
+      }
+
+      assertEventDetail(expectedEventDetail, testName);
+      gEventDetails = [];
+    }, (e) => {
+      ok(false, testName + ' should not reject. ' + e);
+    });
+
+  return promise;
+}
+
+function endCompositionAndAssertResult(testdata) {
+  var dict = testdata.dict;
+  var testName;
+  var promise;
+  if (dict) {
+    testName = gTestDescription +
+      'endComposition(' + testdata.text + ', ' + JSON.stringify(dict) + ')';
+    promise = navigator.mozInputMethod.inputcontext
+      .endComposition(testdata.text, dict);
+  } else {
+    testName = gTestDescription +
+      'endComposition(' + testdata.text + ')';
+    promise = navigator.mozInputMethod.inputcontext
+      .endComposition(testdata.text);
+  }
+
+  if (testdata.expectedReject) {
+    promise = promise
+      .then(() => {
+        ok(false, testName + ' should not resolve.');
+      }, (e) => {
+        ok(true, testName + ' rejects.');
+        ok(e instanceof testdata.expectedReject, 'Reject with type.');
+      })
+
+    return promise;
+  }
+
+  promise = promise
+    .then((res) => {
+      is(res, true,
+        testName + ' should resolve to true.');
+
+      var expectedEventDetail = [];
+
+      var expectedValues = testdata.expectedValues;
+
+      if (testdata.expectsKeyEvents &&
+          testdata.dispatchKeyboardEventDuringComposition) {
+        expectedEventDetail.push({
+          type: 'keydown',
+          key: expectedValues.key,
+          charCode: 0,
+          code: expectedValues.code || '',
+          keyCode: expectedValues.keyCode || 0,
+          location: 0,
+          repeat: expectedValues.repeat || false,
+          value: gCurrentValue,
+          shift: false,
+          capsLock: false,
+          control: false,
+          alt: false
+        });
+      }
+
+      expectedEventDetail.push({
+        type: 'compositionend',
+        data: testdata.text,
+        value: gCurrentValue
+      });
+
+      expectedEventDetail.push({
+        type: 'input',
+        value: gCurrentValue
+      });
+
+      if (testdata.expectsKeyEvents) {
+        expectedEventDetail.push({
+          type: 'keyup',
+          key: expectedValues.key,
+          charCode: 0,
+          code: expectedValues.code || '',
+          keyCode: expectedValues.keyCode || 0,
+          location: 0,
+          repeat: expectedValues.repeat || false,
+          value: gCurrentValue,
+          shift: false,
+          capsLock: false,
+          control: false,
+          alt: false
+        });
+      }
+
+      assertEventDetail(expectedEventDetail, testName);
+      gEventDetails = [];
+    }, (e) => {
+      ok(false, testName + ' should not reject. ' + e);
+    });
+
+  return promise;
+}
+
+function runCompositionWithKeyEventTests() {
+  var promiseQueue = Promise.resolve();
+
+  [true, false].forEach((dispatchKeyboardEventDuringComposition) => {
+    gTestDescription = 'runCompositionWithKeyEventTests() (dispatchKeyboardEvent =' + dispatchKeyboardEventDuringComposition + '): ';
+
+    promiseQueue = promiseQueue
+      .then(() => {
+        SpecialPowers.setBoolPref(
+          'dom.keyboardevent.dispatch_during_composition',
+          dispatchKeyboardEventDuringComposition);
+      })
+      .then(() => {
+        return setCompositionAndAssertResult({
+          text: 'foo',
+          expectsKeyEvents: true,
+          startsComposition: true,
+          dispatchKeyboardEventDuringComposition: dispatchKeyboardEventDuringComposition,
+          expectedInput: 'foo',
+          dict: {
+            key: 'a',
+            code: 'KeyA',
+            keyCode: KeyboardEvent.DOM_VK_A
+          },
+          expectedValues: {
+            key: 'a',
+            code: 'KeyA',
+            keyCode: KeyboardEvent.DOM_VK_A
+          }
+        });
+      })
+      .then(() => {
+        return setCompositionAndAssertResult({
+          text: 'foobar',
+          expectsKeyEvents: true,
+          startsComposition: false,
+          dispatchKeyboardEventDuringComposition: dispatchKeyboardEventDuringComposition,
+          expectedInput: 'bar',
+          dict: {
+            key: 'a',
+            code: 'KeyA',
+            keyCode: KeyboardEvent.DOM_VK_A
+          },
+          expectedValues: {
+            key: 'a',
+            code: 'KeyA',
+            keyCode: KeyboardEvent.DOM_VK_A
+          }
+        });
+      })
+      .then(() => {
+        return endCompositionAndAssertResult({
+          text: 'foobar',
+          expectsKeyEvents: true,
+          dispatchKeyboardEventDuringComposition: dispatchKeyboardEventDuringComposition,
+          expectedInput: '',
+          dict: {
+            key: 'a',
+            code: 'KeyA',
+            keyCode: KeyboardEvent.DOM_VK_A
+          },
+          expectedValues: {
+            key: 'a',
+            code: 'KeyA',
+            keyCode: KeyboardEvent.DOM_VK_A
+          }
+        });
+      })
+      .then(() => {
+        SpecialPowers.clearUserPref(
+          'dom.keyboardevent.dispatch_during_composition');
+      });
+  });
+
+  return promiseQueue;
+}
+
+function runCompositionWithoutKeyEventTests() {
+  var promiseQueue = Promise.resolve();
+
+  gTestDescription = 'runCompositionWithoutKeyEventTests(): ';
+
+  promiseQueue = promiseQueue
+    .then(() => {
+      return setCompositionAndAssertResult({
+        text: 'foo',
+        expectsKeyEvents: false,
+        startsComposition: true,
+        expectedInput: 'foo'
+      });
+    })
+    .then(() => {
+      return setCompositionAndAssertResult({
+        text: 'foobar',
+        expectsKeyEvents: false,
+        startsComposition: false,
+        expectedInput: 'bar'
+      });
+    })
+    .then(() => {
+      return endCompositionAndAssertResult({
+        text: 'foobar',
+        expectsKeyEvents: false,
+        expectedInput: ''
+      });
+    });
+
+  return promiseQueue;
+}
+
+function keydownAndAssertResult(testdata) {
+  var dict = testdata.dict;
+  var testName = gTestDescription + 'keydown(' + JSON.stringify(dict) + ')';
+  var promise = navigator.mozInputMethod.inputcontext.keydown(dict);
+
+  if (testdata.expectedReject) {
+    promise = promise
+      .then(() => {
+        ok(false, testName + ' should not resolve.');
+      }, (e) => {
+        ok(true, testName + ' rejects.');
+        ok(e instanceof testdata.expectedReject, 'Reject with type.');
+      })
+
+    return promise;
+  }
+
+  promise = promise
+    .then((res) => {
+      is(res, true,
+        testName + ' should resolve to true.');
+
+      var expectedEventDetail = [];
+
+      var expectedValues = testdata.expectedValues;
+
+      expectedEventDetail.push({
+        type: 'keydown',
+        key: expectedValues.key,
+        charCode: 0,
+        code: expectedValues.code || '',
+        keyCode: expectedValues.keyCode || 0,
+        location: 0,
+        repeat: expectedValues.repeat || false,
+        value: gCurrentValue,
+        shift: false,
+        capsLock: false,
+        control: false,
+        alt: false
+      });
+
+      if (testdata.expectedKeypress) {
+        expectedEventDetail.push({
+          type: 'keypress',
+          key: expectedValues.key,
+          charCode: expectedValues.charCode,
+          code: expectedValues.code || '',
+          keyCode: expectedValues.charCode ? 0 : expectedValues.keyCode,
+          location: 0,
+          repeat: expectedValues.repeat || false,
+          value: gCurrentValue,
+          shift: false,
+          capsLock: false,
+          control: false,
+          alt: false
+        });
+      }
+
+      if (testdata.expectedInput) {
+        expectedEventDetail.push({
+          type: 'input',
+          value: gCurrentValue += testdata.expectedInput
+        });
+      }
+
+      assertEventDetail(expectedEventDetail, testName);
+      gEventDetails = [];
+    }, (e) => {
+      ok(false, testName + ' should not reject. ' + e);
+    });
+
+  return promise;
+}
+
+function keyupAndAssertResult(testdata) {
+  var dict = testdata.dict;
+  var testName = gTestDescription + 'keyup(' + JSON.stringify(dict) + ')';
+  var promise = navigator.mozInputMethod.inputcontext.keyup(dict);
+
+  if (testdata.expectedReject) {
+    promise = promise
+      .then(() => {
+        ok(false, testName + ' should not resolve.');
+      }, (e) => {
+        ok(true, testName + ' rejects.');
+        ok(e instanceof testdata.expectedReject, 'Reject with type.');
+      })
+
+    return promise;
+  }
+
+  promise = promise
+    .then((res) => {
+      is(res, true,
+        testName + ' should resolve to true.');
+
+      var expectedEventDetail = [];
+
+      var expectedValues = testdata.expectedValues;
+
+      expectedEventDetail.push({
+        type: 'keyup',
+        key: expectedValues.key,
+        charCode: 0,
+        code: expectedValues.code || '',
+        keyCode: expectedValues.keyCode || 0,
+        location: 0,
+        repeat: expectedValues.repeat || false,
+        value: gCurrentValue,
+        shift: false,
+        capsLock: false,
+        control: false,
+        alt: false
+      });
+
+      assertEventDetail(expectedEventDetail, testName);
+      gEventDetails = [];
+    }, (e) => {
+      ok(false, testName + ' should not reject. ' + e);
+    });
+
+  return promise;
+}
+
+function runKeyDownUpTests() {
+  gTestDescription = 'runKeyDownUpTests(): ';
+  var promiseQueue = Promise.resolve();
+
+  let chr = 'a';
+  let code = 'KeyA';
+  let keyCode = KeyboardEvent.DOM_VK_A;
+
+  promiseQueue = promiseQueue
+    .then(() => {
+      return keydownAndAssertResult({
+        dict: {
+          key: chr,
+          code: code,
+          keyCode: keyCode
+        },
+        expectedKeypress: true,
+        expectedInput: chr,
+        expectedValues: {
+          key: chr, code: code,
+          keyCode: keyCode,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    })
+    .then(() => {
+      return keyupAndAssertResult({
+        dict: {
+          key: chr,
+          code: code,
+          keyCode: keyCode
+        },
+        expectedValues: {
+          key: chr, code: code,
+          keyCode: keyCode,
+          charCode: chr.charCodeAt(0)
+        }
+      });
+    });
+
+  return promiseQueue;
+}
+
+function runKeyDownUpRejectionTests() {
+  gTestDescription = 'runKeyDownUpRejectionTests(): ';
+  var promiseQueue = Promise.resolve();
+
+  promiseQueue = promiseQueue.then(() => {
+    return keydownAndAssertResult({
+      dict: undefined,
+      expectedReject: TypeError
+    });
+  });
+
+  promiseQueue = promiseQueue.then(() => {
+    return keyupAndAssertResult({
+      dict: undefined,
+      expectedReject: TypeError
+    });
+  });
+
+  return promiseQueue;
+}
+
+function runRepeatTests() {
+  gTestDescription = 'runRepeatTests(): ';
+  var promiseQueue = Promise.resolve();
+
+  // Test repeat
+  promiseQueue = promiseQueue
+    .then(() => {
+      return sendKeyAndAssertResult({
+        dict: {
+          key: 'A',
+          repeat: true
+        },
+        expectedKeypress: true,
+        expectedRepeat: true,
+        expectedInput: 'A',
+        expectedValues: {
+          repeat: true,
+          key: 'A', code: '',
+          keyCode: KeyboardEvent.DOM_VK_A,
+          charCode: 'A'.charCodeAt(0)
+        }
+      });
+    })
+    .then(() => {
+      return keyupAndAssertResult({
+        dict: {
+          key: 'A'
+        },
+        expectedKeypress: true,
+        expectedRepeat: true,
+        expectedInput: 'A',
+        expectedValues: {
+          key: 'A', code: '',
+          keyCode: KeyboardEvent.DOM_VK_A,
+          charCode: 'A'.charCodeAt(0)
+        }
+      });
+    });
+
+  return promiseQueue;
+}
+
+function runTest() {
+  let im = navigator.mozInputMethod;
+
+  // Set current page as an input method.
+  SpecialPowers.wrap(im).setActive(true);
+
+  let iframe = document.createElement('iframe');
+  iframe.src = 'file_test_bug1137557.html';
+  iframe.setAttribute('mozbrowser', true);
+  document.body.appendChild(iframe);
+
+  let mm = SpecialPowers.getBrowserFrameMessageManager(iframe);
+
+  iframe.addEventListener('mozbrowserloadend', function() {
+    mm.addMessageListener('test:eventDetail', function(msg) {
+      gEventDetails.push(msg.data);
+    });
+    mm.loadFrameScript('data:,(' + encodeURIComponent(appFrameScript.toString()) + ')();', false);
+  });
+
+  waitForInputContextChange()
+    .then(() => {
+      var inputcontext = navigator.mozInputMethod.inputcontext;
+
+      ok(!!inputcontext, 'Receving the first input context');
+    })
+    .then(() => runSendKeyAlphabetTests())
+    .then(() => runSendKeyNumberTests())
+    .then(() => runSendKeyDvorakTests())
+    .then(() => runSendKeyDigitKeySymbolsTests())
+    .then(() => runSendKeyUSKeyboardSymbolsTests())
+    .then(() => runSendKeyGreekLettersTests())
+    .then(() => runSendKeyEnterTests())
+    .then(() => runSendKeyNumpadTests())
+    .then(() => runSendKeyRejectionTests())
+    .then(() => runCompositionWithKeyEventTests())
+    .then(() => runCompositionWithoutKeyEventTests())
+    .then(() => runKeyDownUpTests())
+    .then(() => runKeyDownUpRejectionTests())
+    .then(() => runRepeatTests())
+    .catch((err) => {
+      console.error(err);
+      is(false, err.message);
+    })
+    .then(() => {
+      var p = waitForInputContextChange();
+
+      // Revoke our right from using the IM API.
+      SpecialPowers.wrap(im).setActive(false);
+
+      return p;
+    })
+    .then(() => {
+      var inputcontext = navigator.mozInputMethod.inputcontext;
+
+      is(inputcontext, null, 'Receving null input context');
+
+      inputmethod_cleanup();
+    })
+    .catch((err) => {
+      console.error(err);
+      is(false, err.message);
+    });
+}
+
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_bug1175399.html b/dom/inputmethod/mochitest/test_bug1175399.html
new file mode 100644
index 000000000..64fc85e88
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_bug1175399.html
@@ -0,0 +1,62 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1175399
+-->
+<head>
+  <title>Test focus when page unloads</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1175399">Mozilla Bug 1175399</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+let appFrameScript = function appFrameScript() {
+  let input = content.document.body.firstElementChild;
+  input.focus();
+
+  content.setTimeout(function() {
+    sendAsyncMessage('test:step');
+  });
+};
+
+function runTest() {
+  let im = navigator.mozInputMethod;
+
+  // Set current page as an input method.
+  SpecialPowers.wrap(im).setActive(true);
+
+  let iframe = document.createElement('iframe');
+  iframe.src = 'file_test_bug1175399.html';
+  iframe.setAttribute('mozbrowser', true);
+  document.body.appendChild(iframe);
+
+  let mm = SpecialPowers.getBrowserFrameMessageManager(iframe);
+  im.oninputcontextchange = function() {
+    is(false, 'should not receive inputcontextchange event');
+  };
+
+  iframe.addEventListener('mozbrowserloadend', function() {
+    mm.addMessageListener('test:step', function() {
+      let inputcontext = navigator.mozInputMethod.inputcontext;
+      is(inputcontext, null, 'inputcontext is null');
+
+      inputmethod_cleanup();
+    });
+    mm.loadFrameScript('data:,(' + encodeURIComponent(appFrameScript.toString()) + ')();', false);
+  });
+}
+
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_bug944397.html b/dom/inputmethod/mochitest/test_bug944397.html
new file mode 100644
index 000000000..4be95f395
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_bug944397.html
@@ -0,0 +1,107 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=944397
+-->
+<head>
+  <title>Basic test for InputMethod API.</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=944397">Mozilla Bug 944397</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+SimpleTest.requestFlakyTimeout("untriaged");
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+// The frame script running in file_test_app.html.
+function appFrameScript() {
+  let input = content.document.getElementById('test-input');
+  input.oninput = function() {
+    sendAsyncMessage('test:InputMethod:oninput', {
+      value: input.value
+    });
+  };
+}
+
+function runTest() {
+  let app, keyboard;
+
+  /**
+   * So this test does the following:
+   * 1. Create a mozbrowser iframe with a text field in it, and focus the text field
+   * 2. 100ms. after loading we create new keyboard iframe, that will try to execute
+   *    replaceSurroundingText on the current active inputcontext
+   * 3. That should trigger 'input' event on the said text field
+   * 4. And if that happens we know everything is OK
+   */
+
+  let path = location.pathname;
+  let basePath = location.protocol + '//' + location.host +
+               path.substring(0, path.lastIndexOf('/'));
+
+  // STEP 1: Create an app frame to recieve keyboard inputs.
+  function step1() {
+    app = document.createElement('iframe');
+    app.src = basePath + '/file_test_app.html';
+    app.setAttribute('mozbrowser', true);
+    document.body.appendChild(app);
+    app.addEventListener('mozbrowserloadend', function() {
+      let mm = SpecialPowers.getBrowserFrameMessageManager(app);
+      mm.loadFrameScript('data:,(' + appFrameScript.toString() + ')();', false);
+      mm.addMessageListener("test:InputMethod:oninput", function(ev) {
+        step4(SpecialPowers.wrap(ev).json.value);
+      });
+
+      step2();
+    });
+  }
+
+  function step2() {
+    // STEP 2a: Create a browser frame to load the input method app.
+    keyboard = document.createElement('iframe');
+    keyboard.setAttribute('mozbrowser', true);
+    document.body.appendChild(keyboard);
+
+    // STEP 2b: Grant input privileges to the keyboard iframe
+    let imeUrl = basePath + '/file_inputmethod.html#data';
+
+    // STEP 2c: Tell Gecko to use this iframe as its keyboard app
+    let req = keyboard.setInputMethodActive(true);
+
+    req.onsuccess = function() {
+      ok(true, 'setInputMethodActive succeeded.');
+    };
+
+    req.onerror = function() {
+      ok(false, 'setInputMethodActive failed: ' + this.error.name);
+      inputmethod_cleanup();
+    };
+
+    // STEP 3: Loads the input method app to the browser frame after a delay.
+    setTimeout(function() {
+      keyboard.src = imeUrl;
+    }, 100);
+  }
+
+  function step4(val) {
+    ok(true, 'Keyboard input was received.');
+    is(val, '#dataYuan', 'Input value');
+    inputmethod_cleanup();
+  }
+
+  step1();
+}
+
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_bug949059.html b/dom/inputmethod/mochitest/test_bug949059.html
new file mode 100644
index 000000000..495f3d63c
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_bug949059.html
@@ -0,0 +1,40 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=949059
+-->
+<head>
+  <title>Test "mgmt" property of MozInputMethod.</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=949059">Mozilla Bug 949059</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+function runTest() {
+  let im = navigator.mozInputMethod;
+
+  // Treat current page as an input method and activate it.
+  SpecialPowers.wrap(im).setActive(true);
+  ok(im.mgmt, 'The mgmt property should not be null.');
+
+  // Deactivate current page.
+  SpecialPowers.wrap(im).setActive(false);
+  ok(im.mgmt, 'The mgmt property should not be null.');
+
+  inputmethod_cleanup();
+}
+
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_bug953044.html b/dom/inputmethod/mochitest/test_bug953044.html
new file mode 100644
index 000000000..2b1f022a6
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_bug953044.html
@@ -0,0 +1,52 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=953044
+-->
+<head>
+  <title>Basic test for InputMethod API.</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=953044">Mozilla Bug 953044</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+function runTest() {
+  // Create an app frame to recieve keyboard inputs.
+  let app = document.createElement('iframe');
+  app.src = 'file_test_app.html';
+  app.setAttribute('mozbrowser', true);
+  document.body.appendChild(app);
+
+  // Create a browser frame to load the input method app.
+  let keyboard = document.createElement('iframe');
+  keyboard.setAttribute('mozbrowser', true);
+  document.body.appendChild(keyboard);
+
+  // Bug 953044 setInputMethodActive(false) before input method app loads should
+  // always succeed.
+  let req = keyboard.setInputMethodActive(false);
+  req.onsuccess = function() {
+    ok(true, 'setInputMethodActive before loading succeeded.');
+    inputmethod_cleanup();
+  };
+
+  req.onerror = function() {
+    ok(false, 'setInputMethodActive before loading failed: ' + this.error.name);
+    inputmethod_cleanup();
+  };
+}
+
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_bug960946.html b/dom/inputmethod/mochitest/test_bug960946.html
new file mode 100644
index 000000000..f65ff42e7
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_bug960946.html
@@ -0,0 +1,108 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=960946
+-->
+<head>
+  <title>Basic test for repeat sendKey events</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=960946">Mozilla Bug 960946</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+// The input context.
+var gContext = null;
+var gCounter = 0;
+var gBackSpaceCounter = 0;
+var result = ["keydown", "keypress", "keydown","keypress",
+              "keydown", "keypress", "keyup"
+             ];
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+var input;
+// The frame script running in file_test_backspace_event.html.
+function appFrameScript() {
+  let input = content.document.getElementById('test-input');
+  input.onkeydown = input.onkeypress = input.onkeyup = function(event) {
+    dump('key event was fired in file_test_backspace_event.html: ' + event.type +'\n');
+    sendAsyncMessage('test:KeyBoard:keyEvent', {'type':event.type});
+  };
+}
+
+function runTest() {
+  let im = navigator.mozInputMethod;
+
+  im.oninputcontextchange = function() {
+    ok(true, 'inputcontextchange event was fired.');
+    im.oninputcontextchange = null;
+
+    gContext = im.inputcontext;
+    if (!gContext) {
+      ok(false, 'Should have a non-null inputcontext.');
+      inputmethod_cleanup();
+      return;
+    }
+
+    test_sendKey();
+  };
+
+  // Set current page as an input method.
+  SpecialPowers.wrap(im).setActive(true);
+
+  // Create an app frame to recieve keyboard inputs.
+  let app = document.createElement('iframe');
+  app.src = 'file_test_app.html';
+  app.setAttribute('mozbrowser', true);
+  document.body.appendChild(app);
+  app.addEventListener('mozbrowserloadend', function() {
+    let mm = SpecialPowers.getBrowserFrameMessageManager(app);
+    mm.loadFrameScript('data:,(' + appFrameScript.toString() + ')();', false);
+    mm.addMessageListener("test:KeyBoard:keyEvent", function(event) {
+      ok(true, 'Keyboard input was received.');
+      is(SpecialPowers.wrap(event).json.type, result[gCounter], "expected event");
+      gCounter++;
+    });
+  });
+}
+
+function test_sendKey() {
+  // Move cursor position to 4.
+  gContext.setSelectionRange(4, 0).then(function() {
+    is(gContext.selectionStart, 4, 'selectionStart was set successfully.');
+    is(gContext.selectionEnd, 4, 'selectionEnd was set successfully.');
+    for(let i = 0; i < 2; i++) {
+      test_sendBackspace(true);
+    }
+    test_sendBackspace(false);
+  }, function(e) {
+    ok(false, 'setSelectionRange failed:' + e.name);
+    inputmethod_cleanup();
+  });
+}
+
+function test_sendBackspace(repeat) {
+  // Send backspace
+  gContext.sendKey(KeyEvent.DOM_VK_BACK_SPACE, 0, 0, repeat).then(function() {
+    ok(true, 'sendKey success');
+    gBackSpaceCounter++;
+    if (gBackSpaceCounter == 3) {
+      inputmethod_cleanup();
+    }
+  }, function(e) {
+    ok(false, 'sendKey failed:' + e.name);
+    inputmethod_cleanup();
+  });
+}
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_bug978918.html b/dom/inputmethod/mochitest/test_bug978918.html
new file mode 100644
index 000000000..56e02a57d
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_bug978918.html
@@ -0,0 +1,77 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=978918
+-->
+<head>
+  <title>Basic test for InputMethod API.</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=978918">Mozilla Bug 978918</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+// The input context.
+var gContext = null;
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+function runTest() {
+  let im = navigator.mozInputMethod;
+
+  im.oninputcontextchange = function() {
+    ok(true, 'inputcontextchange event was fired.');
+    im.oninputcontextchange = null;
+
+    gContext = im.inputcontext;
+    if (!gContext) {
+      ok(false, 'Should have a non-null inputcontext.');
+      inputmethod_cleanup();
+      return;
+    }
+
+    test_setSelectionRange();
+  };
+
+  // Set current page as an input method.
+  SpecialPowers.wrap(im).setActive(true);
+
+  let iframe = document.createElement('iframe');
+  iframe.src = 'file_test_sms_app.html';
+  iframe.setAttribute('mozbrowser', true);
+  document.body.appendChild(iframe);
+}
+
+function test_setSelectionRange() {
+  gContext.setSelectionRange(0, 100).then(function() {
+    is(gContext.selectionStart, 0, 'selectionStart was set successfully.');
+    is(gContext.selectionEnd, 5, 'selectionEnd was set successfully.');
+    test_replaceSurroundingText();
+  }, function(e) {
+    ok(false, 'setSelectionRange failed:' + e.name);
+    inputmethod_cleanup();
+  });
+}
+
+function test_replaceSurroundingText() {
+  // Replace 'Httvb' with 'Hito'.
+  gContext.replaceSurroundingText('Hito', 0, 100).then(function() {
+    ok(true, 'replaceSurroundingText finished');
+    inputmethod_cleanup();
+  }, function(e) {
+    ok(false, 'replaceSurroundingText failed: ' + e.name);
+    inputmethod_cleanup();
+  });
+}
+
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_focus_blur_manage_events.html b/dom/inputmethod/mochitest/test_focus_blur_manage_events.html
new file mode 100644
index 000000000..939639050
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_focus_blur_manage_events.html
@@ -0,0 +1,199 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1201407
+-->
+<head>
+  <title>Test inputcontextfocus and inputcontextblur event</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1201407">Mozilla Bug 1201407</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+let contentFrameMM;
+
+function setupTestRunner() {
+  info('setupTestRunner');
+  let im = navigator.mozInputMethod;
+
+  let expectedEventDetails = [
+    { type: 'input', inputType: 'text' },
+    { type: 'input', inputType: 'search' },
+    { type: 'textarea', inputType: 'textarea' },
+    { type: 'contenteditable', inputType: 'textarea' },
+    { type: 'input', inputType: 'number' },
+    { type: 'input', inputType: 'tel' },
+    { type: 'input', inputType: 'url' },
+    { type: 'input', inputType: 'email' },
+    { type: 'input', inputType: 'password' },
+    { type: 'input', inputType: 'datetime' },
+    { type: 'input', inputType: 'date',
+      value: '2015-08-03', min: '1990-01-01', max: '2020-01-01' },
+    { type: 'input', inputType: 'month' },
+    { type: 'input', inputType: 'week' },
+    { type: 'input', inputType: 'time' },
+    { type: 'input', inputType: 'datetime-local' },
+    { type: 'input', inputType: 'color' },
+    { type: 'select', inputType: 'select-one',
+      choices: {
+        multiple: false,
+        choices: [
+          { group: false, inGroup: false, text: 'foo',
+            disabled: false, selected: true, optionIndex: 0 },
+          { group: false, inGroup: false, text: 'bar',
+            disabled: true, selected: false, optionIndex: 1 },
+          { group: true, text: 'group', disabled: false },
+          { group: false, inGroup: true, text: 'baz',
+            disabled: false, selected: false, optionIndex: 2 } ] }
+    },
+    { type: 'select', inputType: 'select-multiple',
+      choices: {
+        multiple: true,
+        choices: [
+          { group: false, inGroup: false, text: 'foo',
+            disabled: false, selected: true, optionIndex: 0 },
+          { group: false, inGroup: false, text: 'bar',
+            disabled: true, selected: false, optionIndex: 1 },
+          { group: true, text: 'group', disabled: false },
+          { group: false, inGroup: true, text: 'baz',
+            disabled: false, selected: false, optionIndex: 2 } ] }
+    }
+  ];
+
+  let expectBlur = false;
+
+  function deepAssertObject(obj, expectedObj, desc) {
+    for (let prop in expectedObj) {
+      if (typeof expectedObj[prop] === 'object') {
+        deepAssertObject(obj[prop], expectedObj[prop], desc + '.' + prop);
+      } else {
+        is(obj[prop], expectedObj[prop], desc + '.' + prop);
+      }
+    }
+  }
+
+  im.mgmt.oninputcontextfocus =
+  im.mgmt.oninputcontextblur = function(evt) {
+    if (expectBlur) {
+      is(evt.type, 'inputcontextblur', 'evt.type');
+      evt.preventDefault();
+      expectBlur = false;
+
+      return;
+    }
+
+    let expectedEventDetail = expectedEventDetails.shift();
+
+    if (!expectedEventDetail) {
+        ok(false, 'Receving extra events');
+        inputmethod_cleanup();
+
+      return;
+    }
+
+    is(evt.type, 'inputcontextfocus', 'evt.type');
+    evt.preventDefault();
+    expectBlur = true;
+
+    let detail = evt.detail;
+    deepAssertObject(detail, expectedEventDetail, 'detail');
+
+    if (expectedEventDetails.length) {
+      contentFrameMM.sendAsyncMessage('test:next');
+    } else {
+      im.mgmt.oninputcontextfocus = im.mgmt.oninputcontextblur = null;
+      inputmethod_cleanup();
+    }
+  };
+}
+
+function setupInputAppFrame() {
+  info('setupInputAppFrame');
+  return new Promise((resolve, reject) => {
+    let appFrameScript = function appFrameScript() {
+      let im = content.navigator.mozInputMethod;
+
+      im.mgmt.oninputcontextfocus =
+      im.mgmt.oninputcontextblur = function(evt) {
+        sendAsyncMessage('text:appEvent', { type: evt.type });
+      };
+
+      content.document.body.textContent = 'I am a input app';
+    };
+
+    let path = location.pathname;
+    let basePath = location.protocol + '//' + location.host +
+                 path.substring(0, path.lastIndexOf('/'));
+    let imeUrl = basePath + '/file_blank.html';
+
+    let inputAppFrame = document.createElement('iframe');
+    inputAppFrame.setAttribute('mozbrowser', true);
+    inputAppFrame.src = imeUrl;
+    document.body.appendChild(inputAppFrame);
+
+    let mm = SpecialPowers.getBrowserFrameMessageManager(inputAppFrame);
+    inputAppFrame.addEventListener('mozbrowserloadend', function() {
+      mm.addMessageListener('text:appEvent', function(msg) {
+        ok(false, 'Input app should not receive ' + msg.data.type + ' event.');
+      });
+      mm.loadFrameScript('data:,(' + encodeURIComponent(appFrameScript.toString()) + ')();', false);
+
+      // Set the input app frame to be active
+      let req = inputAppFrame.setInputMethodActive(true);
+      resolve(req);
+    });
+  });
+}
+
+function setupContentFrame() {
+  info('setupContentFrame');
+  return new Promise((resolve, reject) => {
+    let contentFrameScript = function contentFrameScript() {
+      let input = content.document.body.firstElementChild;
+
+      let i = 0;
+
+      input.focus();
+
+      addMessageListener('test:next', function() {
+        content.document.body.children[++i].focus();
+      });
+    };
+
+    let iframe = document.createElement('iframe');
+    iframe.src = 'file_test_focus_blur_manage_events.html';
+    iframe.setAttribute('mozbrowser', true);
+    document.body.appendChild(iframe);
+
+    let mm = contentFrameMM =
+      SpecialPowers.getBrowserFrameMessageManager(iframe);
+
+    iframe.addEventListener('mozbrowserloadend', function() {
+      mm.loadFrameScript('data:,(' + encodeURIComponent(contentFrameScript.toString()) + ')();', false);
+
+      resolve();
+    });
+  });
+}
+
+inputmethod_setup(function() {
+  Promise.resolve()
+    .then(() => setupTestRunner())
+    .then(() => setupContentFrame())
+    .then(() => setupInputAppFrame())
+    .catch((e) => {
+      ok(false, 'Error' + e.toString());
+      console.error(e);
+    });
+});
+
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_forward_hardware_key_to_ime.html b/dom/inputmethod/mochitest/test_forward_hardware_key_to_ime.html
new file mode 100644
index 000000000..13bd58ce9
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_forward_hardware_key_to_ime.html
@@ -0,0 +1,149 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1110030
+-->
+<head>
+  <title>Forwarding Hardware Key to InputMethod</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <script type="text/javascript" src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
+  <script type="text/javascript" src="chrome://mochikit/content/tests/SimpleTest/NativeKeyCodes.js"></script>
+  <script type="text/javascript" src="bug1110030_helper.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1110030">Mozilla Bug 1110030</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+// The input context.
+var gContext = null;
+
+// The test cases.
+var gTests;
+
+inputmethod_setup(function() {
+  setInputContext();
+});
+
+function setInputContext() {
+  let im = navigator.mozInputMethod;
+
+  im.oninputcontextchange = function() {
+    ok(true, 'inputcontextchange event was fired.');
+    im.oninputcontextchange = null;
+
+    gContext = im.inputcontext;
+    if (!gContext || !gContext.hardwareinput) {
+      ok(false, 'Should have a non-null inputcontext.hardwareinput');
+      inputmethod_cleanup();
+      return;
+    }
+
+    prepareTest();
+  };
+
+  // Set current page as an input method.
+  SpecialPowers.wrap(im).setActive(true);
+
+  // verifyResultsAndMoveNext will be called after input#text-input
+  // receives all expected key events and it will verify results
+  // and start next test.
+  loadTestFrame(verifyResultsAndMoveNext);
+}
+
+function prepareTest()
+{
+  // Set the used input method of this test
+  gInputMethod = new InputMethod(gContext);
+
+  // Add listenr to hardwareinput
+  addKeyEventListeners(gContext.hardwareinput, function (evt) {
+    hardwareEventReceiver(evt);
+    gInputMethod.handler(evt);
+  });
+
+  // Set the test cases
+  gTests = [
+    // Case 1: IME handle the key input
+    {
+      key: 'z',
+      hardwareinput: {
+        expectedEvents: kKeyDown | kKeyUp,
+        receivedEvents: 0,
+        expectedKeys: 'zz', // One for keydown, the other for keyup
+        receivedKeys: '',
+      },
+      inputtext: {
+        expectedEvents: kKeyDown | kKeyPress | kKeyUp,
+        receivedEvents: 0,
+        expectedKeys: gInputMethod.mapKey('z') +  // for keydown
+                      gInputMethod.mapKey('z') +  // for keypress
+                      gInputMethod.mapKey('z'),   // for keyup
+        receivedKeys: '',
+      }
+    },
+    // case 2: IME doesn't handle the key input
+    {
+      key: '7',
+      hardwareinput: {
+        expectedEvents: kKeyDown | kKeyUp,
+        receivedEvents: 0,
+        expectedKeys: '77', // One for keydown, the other for keyup
+        receivedKeys: '',
+      },
+      inputtext: {
+        expectedEvents: kKeyDown | kKeyPress | kKeyUp,
+        receivedEvents: 0,
+        expectedKeys: '777', // keydown, keypress, keyup all will receive key
+        receivedKeys: '',
+      }
+    },
+    // case 3: IME is disable
+    // This case is same as
+    // dom/events/test/test_dom_before_after_keyboard_event*.html
+  ];
+
+  startTesting();
+}
+
+function startTesting()
+{
+  if (gTests.length <= 0) {
+    finish();
+    return;
+  }
+
+  gCurrentTest = gTests.shift();
+
+  fireEvent();
+}
+
+function verifyResultsAndMoveNext()
+{
+  verifyResults(gCurrentTest);
+  startTesting();
+}
+
+function finish()
+{
+  inputmethod_cleanup();
+}
+
+function errorHandler(msg)
+{
+  // Clear the test cases
+  if (gTests) {
+    gTests = [];
+  }
+
+  ok(false, msg);
+
+  inputmethod_cleanup();
+}
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/inputmethod/mochitest/test_input_registry_events.html b/dom/inputmethod/mochitest/test_input_registry_events.html
new file mode 100644
index 000000000..e2c3c1f9d
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_input_registry_events.html
@@ -0,0 +1,251 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1201407
+-->
+<head>
+  <title>Test addinputrequest and removeinputrequest event</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1201407">Mozilla Bug 1201407</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+let appFrameMM;
+let nextStep;
+
+function setupInputAppFrame() {
+  info('setupInputAppFrame');
+  return new Promise((resolve, reject) => {
+    let appFrameScript = function appFrameScript() {
+      let im = content.navigator.mozInputMethod;
+
+      addMessageListener('test:callAddInput', function() {
+        im.addInput('foo', {
+            launch_path: 'bar.html',
+            name: 'Foo',
+            description: 'foobar',
+            types: ['text', 'password']
+          })
+          .then((r) => {
+              sendAsyncMessage('test:resolved', { resolved: true, result: r });
+            }, (e) => {
+              sendAsyncMessage('test:rejected', { rejected: true, error: e });
+            });
+      });
+
+      addMessageListener('test:callRemoveInput', function() {
+        im.removeInput('foo')
+          .then((r) => {
+              sendAsyncMessage('test:resolved', { resolved: true, result: r });
+            }, (e) => {
+              sendAsyncMessage('test:rejected', { rejected: true, error: e });
+            });
+      });
+
+      im.mgmt.onaddinputrequest =
+      im.mgmt.onremoveinputrequest = function(evt) {
+        sendAsyncMessage('test:appEvent', { type: evt.type });
+      };
+
+      content.document.body.textContent = 'I am a input app';
+    };
+
+    let path = location.pathname;
+    let basePath = location.protocol + '//' + location.host +
+                 path.substring(0, path.lastIndexOf('/'));
+    let imeUrl = basePath + '/file_blank.html';
+
+    let inputAppFrame = document.createElement('iframe');
+    inputAppFrame.setAttribute('mozbrowser', true);
+    // FIXME: Bug 1270790
+    inputAppFrame.setAttribute('remote', true);
+    inputAppFrame.src = imeUrl;
+    document.body.appendChild(inputAppFrame);
+
+    let mm = appFrameMM =
+      SpecialPowers.getBrowserFrameMessageManager(inputAppFrame);
+
+    inputAppFrame.addEventListener('mozbrowserloadend', function() {
+      mm.addMessageListener('test:appEvent', function(msg) {
+        ok(false, 'Input app should not receive ' + msg.data.type + ' event.');
+      });
+      mm.addMessageListener('test:resolved', function(msg) {
+        nextStep && nextStep(msg.data);
+      });
+      mm.addMessageListener('test:rejected', function(msg) {
+        nextStep && nextStep(msg.data);
+      });
+      mm.loadFrameScript('data:,(' + encodeURIComponent(appFrameScript.toString()) + ')();', false);
+
+      resolve();
+    });
+  });
+}
+
+function Deferred() {
+  this.promise = new Promise((res, rej) => {
+    this.resolve = res;
+    this.reject = rej;
+  });
+  return this;
+}
+
+function deepAssertObject(obj, expectedObj, desc) {
+  for (let prop in expectedObj) {
+    if (typeof expectedObj[prop] === 'object') {
+      deepAssertObject(obj[prop], expectedObj[prop], desc + '.' + prop);
+    } else {
+      is(obj[prop], expectedObj[prop], desc + '.' + prop);
+    }
+  }
+}
+
+function setupTestRunner() {
+  let im = navigator.mozInputMethod;
+  let d;
+
+  let i = -1;
+  nextStep = function next(evt) {
+    i++;
+    info('Step ' + i);
+
+    switch (i) {
+      case 0:
+        appFrameMM.sendAsyncMessage('test:callAddInput');
+
+        break;
+
+      case 1:
+        is(evt.type, 'addinputrequest', 'evt.type');
+        deepAssertObject(evt.detail, {
+          inputId: 'foo',
+          manifestURL: null, // todo
+          inputManifest: {
+            launch_path: 'bar.html',
+            name: 'Foo',
+            description: 'foobar',
+            types: ['text', 'password']
+          }
+        }, 'detail');
+
+        d = new Deferred();
+        evt.detail.waitUntil(d.promise);
+        evt.preventDefault();
+
+        Promise.resolve().then(next);
+        break;
+
+      case 2:
+        d.resolve();
+        d = null;
+        break;
+
+      case 3:
+        ok(evt.resolved, 'resolved');
+        appFrameMM.sendAsyncMessage('test:callAddInput');
+
+        break;
+
+      case 4:
+        is(evt.type, 'addinputrequest', 'evt.type');
+
+        d = new Deferred();
+        evt.detail.waitUntil(d.promise);
+        evt.preventDefault();
+
+        Promise.resolve().then(next);
+        break;
+
+      case 5:
+        d.reject('Foo Error');
+        d = null;
+        break;
+
+      case 6:
+        ok(evt.rejected, 'rejected');
+        is(evt.error, 'Foo Error', 'rejected');
+
+
+        appFrameMM.sendAsyncMessage('test:callRemoveInput');
+
+        break;
+
+      case 7:
+        is(evt.type, 'removeinputrequest', 'evt.type');
+        deepAssertObject(evt.detail, {
+          inputId: 'foo',
+          manifestURL: null // todo
+        }, 'detail');
+
+        d = new Deferred();
+        evt.detail.waitUntil(d.promise);
+        evt.preventDefault();
+
+        Promise.resolve().then(next);
+        break;
+
+      case 8:
+        d.resolve();
+        d = null;
+        break;
+
+      case 9:
+        ok(evt.resolved, 'resolved');
+        appFrameMM.sendAsyncMessage('test:callRemoveInput');
+
+        break;
+
+      case 10:
+        is(evt.type, 'removeinputrequest', 'evt.type');
+
+        d = new Deferred();
+        evt.detail.waitUntil(d.promise);
+        evt.preventDefault();
+
+        Promise.resolve().then(next);
+        break;
+
+      case 11:
+        d.reject('Foo Error');
+        d = null;
+        break;
+
+      case 12:
+        ok(evt.rejected, 'rejected');
+        is(evt.error, 'Foo Error', 'rejected');
+        inputmethod_cleanup();
+
+        break;
+
+      default:
+        ok(false, 'received extra call.');
+        inputmethod_cleanup();
+
+        break;
+    }
+  }
+
+  im.mgmt.onaddinputrequest =
+  im.mgmt.onremoveinputrequest = nextStep;
+}
+
+inputmethod_setup(function() {
+  Promise.resolve()
+    .then(() => setupTestRunner())
+    .then(() => setupInputAppFrame())
+    .then(() => nextStep())
+    .catch((e) => {
+      ok(false, 'Error' + e.toString());
+      console.error(e);
+    });
+});
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/inputmethod/mochitest/test_sendkey_cancel.html b/dom/inputmethod/mochitest/test_sendkey_cancel.html
new file mode 100644
index 000000000..8affa8c09
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_sendkey_cancel.html
@@ -0,0 +1,67 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=952080
+-->
+<head>
+  <title>SendKey with canceled keydown test for InputMethod API.</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=952080">Mozilla Bug 952080</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+// The input context.
+var gContext = null;
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+function runTest() {
+  let im = navigator.mozInputMethod;
+
+  im.oninputcontextchange = function() {
+    ok(true, 'inputcontextchange event was fired.');
+    im.oninputcontextchange = null;
+
+    gContext = im.inputcontext;
+    if (!gContext) {
+      ok(false, 'Should have a non-null inputcontext.');
+      inputmethod_cleanup();
+      return;
+    }
+
+    test();
+  };
+
+  // Set current page as an input method.
+  SpecialPowers.wrap(im).setActive(true);
+
+  let iframe = document.createElement('iframe');
+  iframe.src = 'file_test_sendkey_cancel.html';
+  iframe.setAttribute('mozbrowser', true);
+  document.body.appendChild(iframe);
+}
+
+function test() {
+  gContext.sendKey(0, 'j', 0).then(function() {
+    ok(false, 'sendKey was incorrectly resolved');
+
+    inputmethod_cleanup();
+  }, function(e) {
+    ok(true, 'sendKey was rejected');
+
+    inputmethod_cleanup();
+  });
+}
+
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_setSupportsSwitching.html b/dom/inputmethod/mochitest/test_setSupportsSwitching.html
new file mode 100644
index 000000000..2a7540cde
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_setSupportsSwitching.html
@@ -0,0 +1,130 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1197682
+-->
+<head>
+  <title>Test inputcontext#inputType and MozInputMethodManager#supportsSwitching()</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1197682">Mozilla Bug 1197682</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+let appFrameScript = function appFrameScript() {
+  let input = content.document.body.firstElementChild;
+
+  let i = 1;
+
+  input.focus();
+
+  addMessageListener('test:next', function() {
+    i++;
+    switch (i) {
+      case 2:
+        content.document.body.children[1].focus();
+        i++; // keep the same count with the parent frame.
+
+        break;
+
+      case 4:
+        content.document.body.lastElementChild.focus();
+        i++; // keep the same count with the parent frame.
+
+        break;
+
+      case 6:
+        content.document.body.lastElementChild.blur();
+
+        break;
+    }
+  });
+};
+
+function runTest() {
+  let im = navigator.mozInputMethod;
+
+  let i = 0;
+  im.oninputcontextchange = function(evt) {
+    var inputcontext = navigator.mozInputMethod.inputcontext;
+
+    i++;
+    switch (i) {
+      case 1:
+        ok(!!inputcontext, '1) Receving the input context');
+        is(inputcontext.inputType, 'text', '1) input type');
+        is(im.mgmt.supportsSwitching(), true, '1) supports switching');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      case 2:
+        is(inputcontext, null, '2) Receving null inputcontext');
+
+        break;
+
+      case 3:
+        ok(!!inputcontext, '3) Receving the input context');
+        is(inputcontext.inputType, 'number', '3) input type');
+        is(im.mgmt.supportsSwitching(), false, '3) supports switching');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      case 4:
+        is(inputcontext, null, '4) Receving null inputcontext');
+
+        break;
+
+      case 5:
+        ok(!!inputcontext, '5) Receving the input context');
+        is(inputcontext.inputType, 'password', '5) input type');
+        is(im.mgmt.supportsSwitching(), true, '5) supports switching');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      case 6:
+        is(inputcontext, null, '6) Receving null inputcontext');
+        is(im.mgmt.supportsSwitching(), false, '6) supports switching');
+
+        inputmethod_cleanup();
+        break;
+
+      default:
+        ok(false, 'Receving extra inputcontextchange calls');
+        inputmethod_cleanup();
+
+        break;
+    }
+  };
+
+  // Set current page as an input method.
+  SpecialPowers.wrap(im).setActive(true);
+  // Set text and password inputs as supports switching (and not supported for number type)
+  im.mgmt.setSupportsSwitchingTypes(['text', 'password']);
+
+  let iframe = document.createElement('iframe');
+  iframe.src = 'file_test_setSupportsSwitching.html';
+  iframe.setAttribute('mozbrowser', true);
+  document.body.appendChild(iframe);
+
+  let mm = SpecialPowers.getBrowserFrameMessageManager(iframe);
+
+  iframe.addEventListener('mozbrowserloadend', function() {
+    mm.loadFrameScript('data:,(' + encodeURIComponent(appFrameScript.toString()) + ')();', false);
+  });
+}
+
+</script>
+</pre>
+</body>
+</html>
diff --git a/dom/inputmethod/mochitest/test_simple_manage_events.html b/dom/inputmethod/mochitest/test_simple_manage_events.html
new file mode 100644
index 000000000..bbcac498d
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_simple_manage_events.html
@@ -0,0 +1,154 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1201407
+-->
+<head>
+  <title>Test simple manage notification events on MozInputMethodManager</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1201407">Mozilla Bug 1201407</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+let appFrameMM;
+let nextStep;
+
+function setupTestRunner() {
+  info('setupTestRunner');
+  let im = navigator.mozInputMethod;
+
+  let i = 0;
+  im.mgmt.onshowallrequest =
+  im.mgmt.onnextrequest = nextStep = function(evt) {
+    i++;
+    switch (i) {
+      case 1:
+        is(evt.type, 'inputcontextchange', '1) inputcontextchange event');
+        appFrameMM.sendAsyncMessage('test:callShowAll');
+
+        break;
+
+      case 2:
+        is(evt.type, 'showallrequest', '2) showallrequest event');
+        ok(evt.target, im.mgmt, '2) evt.target');
+        evt.preventDefault();
+
+        appFrameMM.sendAsyncMessage('test:callNext');
+
+        break;
+
+      case 3:
+        is(evt.type, 'nextrequest', '3) nextrequest event');
+        ok(evt.target, im.mgmt, '3) evt.target');
+        evt.preventDefault();
+
+        im.mgmt.onshowallrequest =
+        im.mgmt.onnextrequest = nextStep = null;
+
+        inputmethod_cleanup();
+        break;
+
+      default:
+        ok(false, 'Receving extra events');
+        inputmethod_cleanup();
+
+        break;
+    }
+  };
+}
+
+function setupInputAppFrame() {
+  info('setupInputAppFrame');
+  return new Promise((resolve, reject) => {
+    let appFrameScript = function appFrameScript() {
+      let im = content.navigator.mozInputMethod;
+
+      addMessageListener('test:callShowAll', function() {
+        im.mgmt.showAll();
+      });
+
+      addMessageListener('test:callNext', function() {
+        im.mgmt.next();
+      });
+
+      im.mgmt.onshowallrequest =
+      im.mgmt.onnextrequest = function(evt) {
+        sendAsyncMessage('test:appEvent', { type: evt.type });
+      };
+
+      im.oninputcontextchange = function(evt) {
+        sendAsyncMessage('test:inputcontextchange', {});
+      };
+
+      content.document.body.textContent = 'I am a input app';
+    };
+
+    let path = location.pathname;
+    let basePath = location.protocol + '//' + location.host +
+                 path.substring(0, path.lastIndexOf('/'));
+    let imeUrl = basePath + '/file_blank.html';
+
+    let inputAppFrame = document.createElement('iframe');
+    inputAppFrame.setAttribute('mozbrowser', true);
+    inputAppFrame.src = imeUrl;
+    document.body.appendChild(inputAppFrame);
+
+    let mm = appFrameMM =
+      SpecialPowers.getBrowserFrameMessageManager(inputAppFrame);
+
+    inputAppFrame.addEventListener('mozbrowserloadend', function() {
+      mm.addMessageListener('test:appEvent', function(msg) {
+        ok(false, 'Input app should not receive ' + msg.data.type + ' event.');
+      });
+      mm.addMessageListener('test:inputcontextchange', function(msg) {
+        nextStep && nextStep({ type: 'inputcontextchange' });
+      });
+      mm.loadFrameScript('data:,(' + encodeURIComponent(appFrameScript.toString()) + ')();', false);
+
+      // Set the input app frame to be active
+      let req = inputAppFrame.setInputMethodActive(true);
+      resolve(req);
+    });
+  });
+}
+
+function setupContentFrame() {
+  let contentFrameScript = function contentFrameScript() {
+    let input = content.document.body.firstElementChild;
+
+    input.focus();
+  };
+
+  let iframe = document.createElement('iframe');
+  iframe.src = 'file_test_simple_manage_events.html';
+  iframe.setAttribute('mozbrowser', true);
+  document.body.appendChild(iframe);
+
+  let mm = SpecialPowers.getBrowserFrameMessageManager(iframe);
+
+  iframe.addEventListener('mozbrowserloadend', function() {
+    mm.loadFrameScript('data:,(' + encodeURIComponent(contentFrameScript.toString()) + ')();', false);
+  });
+}
+
+inputmethod_setup(function() {
+  Promise.resolve()
+    .then(() => setupTestRunner())
+    .then(() => setupContentFrame())
+    .then(() => setupInputAppFrame())
+    .catch((e) => {
+      ok(false, 'Error' + e.toString());
+      console.error(e);
+    });
+});
+
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_sync_edit.html b/dom/inputmethod/mochitest/test_sync_edit.html
new file mode 100644
index 000000000..a32ea23fa
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_sync_edit.html
@@ -0,0 +1,81 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1079455
+-->
+<head>
+  <title>Sync edit of an input</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1079455">Mozilla Bug 1079455</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+let appFrameScript = function appFrameScript() {
+  let input = content.document.body.firstElementChild;
+
+  input.focus();
+  input.value = 'First1';
+  input.blur();
+};
+
+function runTest() {
+  let im = navigator.mozInputMethod;
+
+  let i = 0;
+  im.oninputcontextchange = function() {
+    let inputcontext = im.inputcontext;
+    i++;
+    switch (i) {
+      case 1:
+        ok(!!inputcontext, 'Should receive inputcontext from focus().');
+        is(inputcontext.textAfterCursor, 'First');
+
+        break;
+
+      case 2:
+        ok(!!inputcontext, 'Should receive inputcontext from value change.');
+        is(inputcontext.textBeforeCursor, 'First1');
+
+        break;
+
+      case 3:
+        ok(!inputcontext, 'Should lost inputcontext from blur().');
+
+        inputmethod_cleanup();
+        break;
+
+      default:
+        ok(false, 'Unknown event count.');
+
+        inputmethod_cleanup();
+    }
+  };
+
+  // Set current page as an input method.
+  SpecialPowers.wrap(im).setActive(true);
+
+  let iframe = document.createElement('iframe');
+  iframe.src = 'file_test_sync_edit.html';
+  iframe.setAttribute('mozbrowser', true);
+  document.body.appendChild(iframe);
+
+  let mm = SpecialPowers.getBrowserFrameMessageManager(iframe);
+  iframe.addEventListener('mozbrowserloadend', function() {
+    mm.loadFrameScript('data:,(' + encodeURIComponent(appFrameScript.toString()) + ')();', false);
+  });
+}
+
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_two_inputs.html b/dom/inputmethod/mochitest/test_two_inputs.html
new file mode 100644
index 000000000..e0f007cbc
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_two_inputs.html
@@ -0,0 +1,184 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1057898
+https://bugzilla.mozilla.org/show_bug.cgi?id=952741
+-->
+<head>
+  <title>Test switching between two inputs</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1057898">Mozilla Bug 1057898</a>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=952741">Mozilla Bug 952741</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+let appFrameScript = function appFrameScript() {
+  let input1 = content.document.body.firstElementChild;
+  let input2 = content.document.body.children[1];
+
+  let i = 1;
+
+  input1.focus();
+
+  addMessageListener('test:next', function() {
+    i++;
+    switch (i) {
+      case 2:
+        input2.focus();
+        i++; // keep the same count with the parent frame.
+
+        break;
+
+      case 4:
+        input2.blur();
+
+        break;
+
+      case 5:
+        input2.focus();
+
+        break;
+
+      case 6:
+        input1.focus();
+        i++; // keep the same count with the parent frame.
+
+        break;
+
+      case 8:
+        content.document.body.removeChild(input1);
+
+        break;
+
+      case 9:
+        input2.focus();
+
+        break;
+
+      case 10:
+        content.document.body.removeChild(input2);
+
+        break;
+    }
+  });
+};
+
+function runTest() {
+  let im = navigator.mozInputMethod;
+
+  let i = 0;
+  im.oninputcontextchange = function(evt) {
+    var inputcontext = navigator.mozInputMethod.inputcontext;
+
+    i++;
+    switch (i) {
+      // focus on the first input receives the first input context.
+      case 1:
+        ok(!!inputcontext, '1) Receving the first input context');
+        is(inputcontext.textAfterCursor, 'First');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      // focus on the second input should implicitly blur the first input
+      case 2:
+        is(inputcontext, null, '2) Receving null inputcontext');
+
+        break;
+
+      // ... and results the second input context.
+      case 3:
+        ok(!!inputcontext, '3) Receving the second input context');
+        is(inputcontext.textAfterCursor, 'Second');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      // blur on the second input results null input context
+      case 4:
+        is(inputcontext, null, '4) Receving null inputcontext');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      // focus on the second input receives the second input context.
+      case 5:
+        ok(!!inputcontext, '5) Receving the second input context');
+        is(inputcontext.textAfterCursor, 'Second');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      // focus on the second input should implicitly blur the first input
+      case 6:
+        is(inputcontext, null, '6) Receving null inputcontext');
+
+        break;
+
+      // ... and results the second input context.
+      case 7:
+        ok(!!inputcontext, '7) Receving the first input context');
+        is(inputcontext.textAfterCursor, 'First');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      // remove on the first focused input results null input context
+      case 8:
+        is(inputcontext, null, '8) Receving null inputcontext');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      // input context for the second input.
+      case 9:
+        ok(!!inputcontext, '9) Receving the second input context');
+        is(inputcontext.textAfterCursor, 'Second');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      // remove on the second focused input results null input context
+      case 10:
+        is(inputcontext, null, '10) Receving null inputcontext');
+
+        inputmethod_cleanup();
+        break;
+
+      default:
+        ok(false, 'Receving extra inputcontextchange calls');
+        inputmethod_cleanup();
+
+        break;
+    }
+  };
+
+  // Set current page as an input method.
+  SpecialPowers.wrap(im).setActive(true);
+
+  let iframe = document.createElement('iframe');
+  iframe.src = 'file_test_two_inputs.html';
+  iframe.setAttribute('mozbrowser', true);
+  document.body.appendChild(iframe);
+
+  let mm = SpecialPowers.getBrowserFrameMessageManager(iframe);
+
+  iframe.addEventListener('mozbrowserloadend', function() {
+    mm.loadFrameScript('data:,(' + encodeURIComponent(appFrameScript.toString()) + ')();', false);
+  });
+}
+
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_two_selects.html b/dom/inputmethod/mochitest/test_two_selects.html
new file mode 100644
index 000000000..9869b8c14
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_two_selects.html
@@ -0,0 +1,182 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1079728
+-->
+<head>
+  <title>Test switching between two inputs</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1079728">Mozilla Bug 1079728</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+let appFrameScript = function appFrameScript() {
+  let select1 = content.document.body.firstElementChild;
+  let select2 = content.document.body.children[1];
+
+  let i = 1;
+
+  select1.focus();
+
+  addMessageListener('test:next', function() {
+    i++;
+    switch (i) {
+      case 2:
+        select2.focus();
+        i++; // keep the same count with the parent frame.
+
+        break;
+
+      case 4:
+        select2.blur();
+
+        break;
+
+      case 5:
+        select2.focus();
+
+        break;
+
+      case 6:
+        select1.focus();
+        i++; // keep the same count with the parent frame.
+
+        break;
+
+      case 8:
+        content.document.body.removeChild(select1);
+
+        break;
+
+      case 9:
+        select2.focus();
+
+        break;
+
+      case 10:
+        content.document.body.removeChild(select2);
+
+        break;
+    }
+  });
+};
+
+function runTest() {
+  let im = navigator.mozInputMethod;
+
+  let i = 0;
+  im.oninputcontextchange = function(evt) {
+    var inputcontext = navigator.mozInputMethod.inputcontext;
+
+    i++;
+    switch (i) {
+      // focus on the first input receives the first input context.
+      case 1:
+        ok(!!inputcontext, '1) Receving the first input context');
+        is(inputcontext.textAfterCursor, 'First');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      // focus on the second input should implicitly blur the first input
+      case 2:
+        is(inputcontext, null, '2) Receving null inputcontext');
+
+        break;
+
+      // ... and results the second input context.
+      case 3:
+        ok(!!inputcontext, '3) Receving the second input context');
+        is(inputcontext.textAfterCursor, 'Second');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      // blur on the second input results null input context
+      case 4:
+        is(inputcontext, null, '4) Receving null inputcontext');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      // focus on the second input receives the second input context.
+      case 5:
+        ok(!!inputcontext, '5) Receving the second input context');
+        is(inputcontext.textAfterCursor, 'Second');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      // focus on the second input should implicitly blur the first input
+      case 6:
+        is(inputcontext, null, '6) Receving null inputcontext');
+
+        break;
+
+      // ... and results the second input context.
+      case 7:
+        ok(!!inputcontext, '7) Receving the first input context');
+        is(inputcontext.textAfterCursor, 'First');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      // remove on the first focused input results null input context
+      case 8:
+        is(inputcontext, null, '8) Receving null inputcontext');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      // input context for the second input.
+      case 9:
+        ok(!!inputcontext, '9) Receving the second input context');
+        is(inputcontext.textAfterCursor, 'Second');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      // remove on the second focused input results null input context
+      case 10:
+        is(inputcontext, null, '10) Receving null inputcontext');
+
+        inputmethod_cleanup();
+        break;
+
+      default:
+        ok(false, 'Receving extra inputcontextchange calls');
+        inputmethod_cleanup();
+
+        break;
+    }
+  };
+
+  // Set current page as an input method.
+  SpecialPowers.wrap(im).setActive(true);
+
+  let iframe = document.createElement('iframe');
+  iframe.src = 'file_test_two_selects.html';
+  iframe.setAttribute('mozbrowser', true);
+  document.body.appendChild(iframe);
+
+  let mm = SpecialPowers.getBrowserFrameMessageManager(iframe);
+
+  iframe.addEventListener('mozbrowserloadend', function() {
+    mm.loadFrameScript('data:,(' + encodeURIComponent(appFrameScript.toString()) + ')();', false);
+  });
+}
+
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/mochitest/test_unload.html b/dom/inputmethod/mochitest/test_unload.html
new file mode 100644
index 000000000..bef9d1485
--- /dev/null
+++ b/dom/inputmethod/mochitest/test_unload.html
@@ -0,0 +1,167 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1122463
+https://bugzilla.mozilla.org/show_bug.cgi?id=820057
+-->
+<head>
+  <title>Test focus when page unloads</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1122463">Mozilla Bug 1122463</a>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=820057">Mozilla Bug 820057</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+let appFrameScript = function appFrameScript() {
+  let form1 = content.document.body.firstElementChild;
+  let input1 = form1.firstElementChild;
+  let submit1 = form1.lastElementChild;
+  let input2;
+
+  let cancelSubmit = function(evt) {
+    evt.preventDefault();
+  };
+
+  // Content of the second page.
+  form1.action = 'file_test_unload_action.html';
+
+  let i = 1;
+
+  input1.focus();
+
+  addMessageListener('test:next', function() {
+    i++;
+    switch (i) {
+      case 2:
+        // Click the submit button, trigger the submit event and make our
+        // installed event listener preventing the submission.
+        form1.addEventListener('submit', cancelSubmit);
+        submit1.click();
+
+        sendAsyncMessage('test:step');
+
+        break;
+
+      case 3:
+        // Actually submit the form.
+        form1.removeEventListener('submit', cancelSubmit);
+        submit1.click();
+
+        break;
+
+      case 4:
+        if (!content.document.body) {
+          content.onload = function() {
+            content.onload = null;
+
+            let input2 = content.document.body.firstElementChild;
+            input2.focus();
+          };
+
+          return;
+        }
+
+        input2 = content.document.body.firstElementChild;
+        input2.focus();
+
+        break;
+
+      case 5:
+        content.location.href = 'data:text/html,Hello!';
+
+        break;
+    }
+  });
+};
+
+function runTest() {
+  let im = navigator.mozInputMethod;
+
+  let i = 0;
+  function nextStep() {
+    let inputcontext = navigator.mozInputMethod.inputcontext;
+
+    i++;
+    switch (i) {
+      // focus on the first input receives the first input context.
+      case 1:
+        ok(!!inputcontext, '1) Receving the first input context');
+        is(inputcontext.textAfterCursor, 'First');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      // Cancelled submission should not cause us lost focus.
+      case 2:
+        ok(!!inputcontext, '2) Receving the first input context');
+        is(inputcontext.textAfterCursor, 'First');
+
+        mm.sendAsyncMessage('test:next');
+        break;
+
+      // Real submit and page transition should cause us lost focus.
+      // XXX: Unless we could delay the page transition, we does not know if
+      // the inputcontext is lost because of the submit or the pagehide/beforeload
+      // event.
+      case 3:
+        is(inputcontext, null, '3) Receving null inputcontext');
+
+        mm.sendAsyncMessage('test:next');
+
+        break;
+
+      // Regaining focus of input in the second page.
+      case 4:
+        ok(!!inputcontext, '4) Receving the second input context');
+        is(inputcontext.textAfterCursor, 'Second');
+
+        mm.sendAsyncMessage('test:next');
+
+        break;
+
+      // Page transition should cause us lost focus
+      case 5:
+        is(inputcontext, null, '5) Receving null inputcontext');
+
+        inputmethod_cleanup();
+
+        break;
+    }
+  }
+
+  // Set current page as an input method.
+  SpecialPowers.wrap(im).setActive(true);
+
+  let iframe = document.createElement('iframe');
+  iframe.src = 'file_test_unload.html';
+  iframe.setAttribute('mozbrowser', true);
+  document.body.appendChild(iframe);
+
+  let mm = SpecialPowers.getBrowserFrameMessageManager(iframe);
+  im.oninputcontextchange = nextStep;
+
+  let frameScriptLoaded = false;
+  iframe.addEventListener('mozbrowserloadend', function() {
+    if (frameScriptLoaded)
+      return;
+
+    frameScriptLoaded = true;
+    mm.addMessageListener('test:step', nextStep);
+    mm.loadFrameScript('data:,(' + encodeURIComponent(appFrameScript.toString()) + ')();', false);
+  });
+}
+
+</script>
+</pre>
+</body>
+</html>
+
diff --git a/dom/inputmethod/moz.build b/dom/inputmethod/moz.build
new file mode 100644
index 000000000..504e2ebfc
--- /dev/null
+++ b/dom/inputmethod/moz.build
@@ -0,0 +1,41 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# 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/.
+
+if CONFIG['MOZ_B2G']:
+    XPIDL_SOURCES += [
+        'nsIHardwareKeyHandler.idl',
+    ]
+
+    XPIDL_MODULE = 'inputmethod'
+
+    EXPORTS.mozilla += [
+        'HardwareKeyHandler.h',
+    ]
+
+    SOURCES += [
+        'HardwareKeyHandler.cpp'
+    ]
+
+    include('/ipc/chromium/chromium-config.mozbuild')
+
+    FINAL_LIBRARY = 'xul'
+    LOCAL_INCLUDES += [
+        '/dom/base',
+        '/layout/base',
+    ]
+
+EXTRA_COMPONENTS += [
+    'InputMethod.manifest',
+    'MozKeyboard.js',
+]
+
+EXTRA_PP_JS_MODULES += [
+    'Keyboard.jsm',
+]
+
+JAR_MANIFESTS += ['jar.mn']
+
+MOCHITEST_CHROME_MANIFESTS += ['mochitest/chrome.ini']
diff --git a/dom/inputmethod/nsIHardwareKeyHandler.idl b/dom/inputmethod/nsIHardwareKeyHandler.idl
new file mode 100644
index 000000000..5bce4d980
--- /dev/null
+++ b/dom/inputmethod/nsIHardwareKeyHandler.idl
@@ -0,0 +1,142 @@
+/* -*- 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 "nsISupports.idl"
+
+interface nsIDOMKeyEvent;
+
+%{C++
+#define NS_HARDWARE_KEY_HANDLER_CID \
+  { 0xfb45921b, 0xe0a5, 0x45c6, \
+    { 0x90, 0xd0, 0xa6, 0x97, 0xa7, 0x72, 0xc4, 0x2a } }
+#define NS_HARDWARE_KEY_HANDLER_CONTRACTID \
+  "@mozilla.org/HardwareKeyHandler;1"
+
+#include "mozilla/EventForwards.h" /* For nsEventStatus */
+
+namespace mozilla {
+class WidgetKeyboardEvent;
+}
+
+using mozilla::WidgetKeyboardEvent;
+
+class nsINode;
+%}
+
+/**
+ * This interface is used to be registered to the nsIHardwareKeyHandler through
+ * |nsIHardwareKeyHandler.registerListener|.
+ */
+[scriptable, function, uuid(cd5aeee3-b4b9-459d-85e7-c0671c7a8a2e)]
+interface nsIHardwareKeyEventListener : nsISupports
+{
+  /**
+   * This method will be invoked by nsIHardwareKeyHandler to forward the native
+   * keyboard event to the active input method
+   */
+  bool onHardwareKey(in nsIDOMKeyEvent aEvent);
+};
+
+/**
+ * This interface has two main roles. One is to send a hardware keyboard event
+ * to the active input method app and the other is to receive its reply result.
+ * If a keyboard event is triggered from a hardware keyboard when an editor has
+ * focus, the event target should be the editor. However, the text input
+ * processor algorithm is implemented in an input method app and it should
+ * handle the event earlier than the real event target to do the mapping such
+ * as character conversion according to the language setting or the type of a
+ * hardware keyboard.
+ */
+[scriptable, builtinclass, uuid(25b34270-caad-4d18-a910-860351690639)]
+interface nsIHardwareKeyHandler : nsISupports
+{
+  /**
+   * Flags used to set the defaultPrevented's result. The default result
+   * from input-method-app should be set to NO_DEFAULT_PREVENTED.
+   * (It means the forwarded event isn't consumed by input-method-app.)
+   * If the input-method-app consumes the forwarded event,
+   * then the result should be set by DEFAULT_PREVENTED* before reply.
+   */
+  const unsigned short NO_DEFAULT_PREVENTED           = 0x0000;
+  const unsigned short DEFAULT_PREVENTED              = 0x0001;
+  const unsigned short DEFAULT_PREVENTED_BY_CHROME    = 0x0002;
+  const unsigned short DEFAULT_PREVENTED_BY_CONTENT   = 0x0004;
+
+  /**
+   * Registers a listener in input-method-app to receive
+   * the forwarded hardware keyboard events
+   *
+   * @param aListener             Listener object to be notified for receiving
+   *                              the keyboard event fired from hardware
+   * @note                        A listener object must implement
+   *                              nsIHardwareKeyEventListener and
+   *                              nsSupportsWeakReference
+   * @see nsIHardwareKeyEventListener
+   * @see nsSupportsWeakReference
+   */
+  void registerListener(in nsIHardwareKeyEventListener aListener);
+
+  /**
+   * Unregisters the current listener from input-method-app
+   */
+  void unregisterListener();
+
+  /**
+   * Notifies nsIHardwareKeyHandler that input-method-app is active.
+   */
+  void onInputMethodAppConnected();
+
+  /**
+   * Notifies nsIHardwareKeyHandler that input-method-app is disabled.
+   */
+  void onInputMethodAppDisconnected();
+
+  /**
+   * Input-method-app will pass the processing result that the forwarded
+   * event is handled or not through this method, and the nsIHardwareKeyHandler
+   * can use this to receive the reply of |forwardKeyToInputMethodApp|
+   * from the active input method.
+   *
+   * The result should contain the original event type and the info whether
+   * the default is prevented, also, it is prevented by chrome or content.
+   *
+   * @param aEventType            The type of an original event.
+   * @param aDefaultPrevented     State that |evt.preventDefault|
+   *                              is called by content, chrome or not.
+   */
+  void onHandledByInputMethodApp(in DOMString aType,
+                                 in unsigned short aDefaultPrevented);
+
+  /**
+   * Sends the native keyboard events triggered from hardware to the
+   * active input method before dispatching to its event target.
+   * This method only forwards keydown and keyup events.
+   * If the event isn't allowed to be forwarded, we should continue the
+   * normal event processing. For those forwarded keydown and keyup events
+   * We will pause the further event processing to wait for the completion
+   * of the event handling in the active input method app.
+   * Once |onHandledByInputMethodApp| is called by the input method app,
+   * the pending event processing can be resumed according to its reply.
+   * On the other hand, the keypress will never be sent to the input-method-app.
+   * Depending on whether the keydown's reply arrives before the keypress event
+   * comes, the keypress event will be handled directly or pushed into
+   * the event queue to wait for its heading keydown's reply.
+   *
+   * This implementation will call |nsIHardwareKeyEventListener.onHardwareKey|,
+   * which is registered through |nsIHardwareKeyEventListener.registerListener|,
+   * to forward the events.
+   *
+   * Returns true, if the event is handled in this module.
+   * Returns false, otherwise.
+   *
+   * If it returns false, we should continue the normal event processing.
+   */
+  %{C++
+  virtual bool ForwardKeyToInputMethodApp(nsINode* aTarget,
+                                          WidgetKeyboardEvent* aEvent,
+                                          nsEventStatus* aEventStatus) = 0;
+  %}
+};