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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QWINDOWSINPUTCONTEXT_H
#define QWINDOWSINPUTCONTEXT_H
#include <QtCore/qt_windows.h>
#include <QtCore/qlocale.h>
#include <QtCore/qpointer.h>
#include <qpa/qplatforminputcontext.h>
QT_BEGIN_NAMESPACE
class QInputMethodEvent;
class QWindowsWindow;
class QWindowsInputContext : public QPlatformInputContext
{
Q_DISABLE_COPY_MOVE(QWindowsInputContext)
Q_OBJECT
struct CompositionContext
{
HWND hwnd = nullptr;
QString composition;
int position = 0;
bool isComposing = false;
QPointer<QObject> focusObject;
};
public:
explicit QWindowsInputContext();
~QWindowsInputContext() override;
static void setWindowsImeEnabled(QWindowsWindow *platformWindow, bool enabled);
bool hasCapability(Capability capability) const override;
QLocale locale() const override { return m_locale; }
void reset() override;
void update(Qt::InputMethodQueries) override;
void invokeAction(QInputMethod::Action, int cursorPosition) override;
void setFocusObject(QObject *object) override;
QRectF keyboardRect() const override;
bool isInputPanelVisible() const override;
void showInputPanel() override;
void hideInputPanel() 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();
HWND getVirtualKeyboardWindowHandle() const;
const DWORD m_WM_MSIME_MOUSE;
bool m_caretCreated = false;
HBITMAP m_transparentBitmap;
CompositionContext m_compositionContext;
bool m_endCompositionRecursionGuard = false;
LCID m_languageId;
QLocale m_locale;
};
QT_END_NAMESPACE
#endif // QWINDOWSINPUTCONTEXT_H
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