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path: root/widget/windows/WinTextEventDispatcherListener.cpp
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "KeyboardLayout.h"
#include "mozilla/TextEventDispatcher.h"
#include "mozilla/widget/IMEData.h"
#include "nsWindow.h"
#include "WinIMEHandler.h"
#include "WinTextEventDispatcherListener.h"

namespace mozilla {
namespace widget {

StaticRefPtr<WinTextEventDispatcherListener>
    WinTextEventDispatcherListener::sInstance;

// static
WinTextEventDispatcherListener* WinTextEventDispatcherListener::GetInstance() {
  if (!sInstance) {
    sInstance = new WinTextEventDispatcherListener();
  }
  return sInstance.get();
}

void WinTextEventDispatcherListener::Shutdown() { sInstance = nullptr; }

NS_IMPL_ISUPPORTS(WinTextEventDispatcherListener, TextEventDispatcherListener,
                  nsISupportsWeakReference)

WinTextEventDispatcherListener::WinTextEventDispatcherListener() {}

WinTextEventDispatcherListener::~WinTextEventDispatcherListener() {}

NS_IMETHODIMP
WinTextEventDispatcherListener::NotifyIME(
    TextEventDispatcher* aTextEventDispatcher,
    const IMENotification& aNotification) {
  nsWindow* window = static_cast<nsWindow*>(aTextEventDispatcher->GetWidget());
  if (NS_WARN_IF(!window)) {
    return NS_ERROR_FAILURE;
  }
  return IMEHandler::NotifyIME(window, aNotification);
}

NS_IMETHODIMP_(IMENotificationRequests)
WinTextEventDispatcherListener::GetIMENotificationRequests() {
  return IMEHandler::GetIMENotificationRequests();
}

NS_IMETHODIMP_(void)
WinTextEventDispatcherListener::OnRemovedFrom(
    TextEventDispatcher* aTextEventDispatcher) {
  // XXX When input transaction is being stolen by add-on, what should we do?
}

NS_IMETHODIMP_(void)
WinTextEventDispatcherListener::WillDispatchKeyboardEvent(
    TextEventDispatcher* aTextEventDispatcher,
    WidgetKeyboardEvent& aKeyboardEvent, uint32_t aIndexOfKeypress,
    void* aData) {
  static_cast<NativeKey*>(aData)->WillDispatchKeyboardEvent(aKeyboardEvent,
                                                            aIndexOfKeypress);
}

}  // namespace widget
}  // namespace mozilla