gecko-dev/widget/windows/WinTextEventDispatcherListe...

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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/. */
#ifndef WinTextEventDispatcherListener_h_
#define WinTextEventDispatcherListener_h_
#include "mozilla/Attributes.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/TextEventDispatcherListener.h"
namespace mozilla {
namespace widget {
/**
* On Windows, it's enough TextEventDispatcherListener to be a singleton
* because we have only one input context per process (IMM can create
* multiple IM context but we don't support such behavior).
*/
class WinTextEventDispatcherListener final : public TextEventDispatcherListener
{
public:
static WinTextEventDispatcherListener* GetInstance();
static void Shutdown();
NS_DECL_ISUPPORTS
NS_IMETHOD NotifyIME(TextEventDispatcher* aTextEventDispatcher,
const IMENotification& aNotification) override;
NS_IMETHOD_(nsIMEUpdatePreference) GetIMEUpdatePreference() override;
NS_IMETHOD_(void) OnRemovedFrom(
TextEventDispatcher* aTextEventDispatcher) override;
NS_IMETHOD_(void) WillDispatchKeyboardEvent(
TextEventDispatcher* aTextEventDispatcher,
WidgetKeyboardEvent& aKeyboardEvent,
uint32_t aIndexOfKeypress,
void* aData) override;
private:
WinTextEventDispatcherListener();
virtual ~WinTextEventDispatcherListener();
static StaticRefPtr<WinTextEventDispatcherListener> sInstance;
};
} // namespace widget
} // namespace mozilla
#endif // #ifndef WinTextEventDispatcherListener_h_