widget/windows/WinTextEventDispatcherListener.cpp

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "KeyboardLayout.h"
   7 #include "mozilla/TextEventDispatcher.h"
   8 #include "mozilla/widget/IMEData.h"
   9 #include "nsWindow.h"
  10 #include "WinIMEHandler.h"
  11 #include "WinTextEventDispatcherListener.h"
  12
  13 namespace mozilla {
  14 namespace widget {
  15
  16 StaticRefPtr<WinTextEventDispatcherListener>
  17     WinTextEventDispatcherListener::sInstance;
  18
  19 // static
  20 WinTextEventDispatcherListener* WinTextEventDispatcherListener::GetInstance() {
  21   if (!sInstance) {
  22     sInstance = new WinTextEventDispatcherListener();
  23   }
  24   return sInstance.get();
  25 }
  26
  27 void WinTextEventDispatcherListener::Shutdown() { sInstance = nullptr; }
  28
  29 NS_IMPL_ISUPPORTS(WinTextEventDispatcherListener, TextEventDispatcherListener,
  30                   nsISupportsWeakReference)
  31
  32 WinTextEventDispatcherListener::WinTextEventDispatcherListener() {}
  33
  34 WinTextEventDispatcherListener::~WinTextEventDispatcherListener() {}
  35
  36 NS_IMETHODIMP
  37 WinTextEventDispatcherListener::NotifyIME(
  38     TextEventDispatcher* aTextEventDispatcher,
  39     const IMENotification& aNotification) {
  40   nsWindow* window = static_cast<nsWindow*>(aTextEventDispatcher->GetWidget());
  41   if (NS_WARN_IF(!window)) {
  42     return NS_ERROR_FAILURE;
  43   }
  44   return IMEHandler::NotifyIME(window, aNotification);
  45 }
  46
  47 NS_IMETHODIMP_(IMENotificationRequests)
  48 WinTextEventDispatcherListener::GetIMENotificationRequests() {
  49   return IMEHandler::GetIMENotificationRequests();
  50 }
  51
  52 NS_IMETHODIMP_(void)
  53 WinTextEventDispatcherListener::OnRemovedFrom(
  54     TextEventDispatcher* aTextEventDispatcher) {
  55   // XXX When input transaction is being stolen by add-on, what should we do?
  56 }
  57
  58 NS_IMETHODIMP_(void)
  59 WinTextEventDispatcherListener::WillDispatchKeyboardEvent(
  60     TextEventDispatcher* aTextEventDispatcher,
  61     WidgetKeyboardEvent& aKeyboardEvent, uint32_t aIndexOfKeypress,
  62     void* aData) {
  63   static_cast<NativeKey*>(aData)->WillDispatchKeyboardEvent(aKeyboardEvent,
  64                                                             aIndexOfKeypress);
  65 }
  66
  67 }  // namespace widget
  68 }  // namespace mozilla