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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QWINDOWSINPUTCONTEXT_H
#define QWINDOWSINPUTCONTEXT_H
#include "qtwindows_additional.h"
#include <QtCore/QLocale>
#include <QtCore/QPointer>
#include <qpa/qplatforminputcontext.h>
QT_BEGIN_NAMESPACE
class QInputMethodEvent;
class QWindowsWindow;
class QWindowsInputContext : public QPlatformInputContext
{
Q_OBJECT
struct CompositionContext
{
CompositionContext();
HWND hwnd;
bool haveCaret;
QString composition;
int position;
bool isComposing;
QPointer<QObject> focusObject;
};
public:
explicit QWindowsInputContext();
~QWindowsInputContext();
static void setWindowsImeEnabled(QWindowsWindow *platformWindow, bool enabled);
bool hasCapability(Capability capability) const Q_DECL_OVERRIDE;
QLocale locale() const Q_DECL_OVERRIDE { return m_locale; }
void reset() Q_DECL_OVERRIDE;
void update(Qt::InputMethodQueries) Q_DECL_OVERRIDE;
void invokeAction(QInputMethod::Action, int cursorPosition) Q_DECL_OVERRIDE;
void setFocusObject(QObject *object) Q_DECL_OVERRIDE;
bool startComposition(HWND hwnd);
bool composition(HWND hwnd, LPARAM lParam);
bool endComposition(HWND hwnd);
inline bool isComposing() const { return m_compositionContext.isComposing; }
int reconvertString(RECONVERTSTRING *reconv);
bool handleIME_Request(WPARAM wparam, LPARAM lparam, LRESULT *result);
void handleInputLanguageChanged(WPARAM wparam, LPARAM lparam);
private slots:
void cursorRectChanged();
private:
void initContext(HWND hwnd, QObject *focusObject);
void doneContext();
void startContextComposition();
void endContextComposition();
void updateEnabled();
const DWORD m_WM_MSIME_MOUSE;
static HIMC m_defaultContext;
CompositionContext m_compositionContext;
bool m_endCompositionRecursionGuard;
LCID m_languageId;
QLocale m_locale;
};
QT_END_NAMESPACE
#endif // QWINDOWSINPUTCONTEXT_H
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