kwin/src/inputmethod.h

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/*
KWin - the KDE window manager
This file is part of the KDE project.
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SPDX-FileCopyrightText: 2016 Martin Gräßlin <mgraesslin@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
*/
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#ifndef KWIN_VIRTUAL_KEYBOARD_H
#define KWIN_VIRTUAL_KEYBOARD_H
#include <QObject>
#include <kwinglobals.h>
#include <kwin_export.h>
#include <QPointer>
#include <QTimer>
#include <KWaylandServer/textinput_v2_interface.h>
class KStatusNotifierItem;
class QProcess;
namespace KWin
{
class AbstractClient;
/**
* This class implements the zwp_input_method_unstable_v1, which is currently used to provide
* the Virtual Keyboard using supported input method client (maliit-keyboard e.g.)
**/
class KWIN_EXPORT InputMethod : public QObject
{
Q_OBJECT
public:
~InputMethod() override;
void init();
void setEnabled(bool enable);
bool isEnabled() const {
return m_enabled;
}
bool isActive() const {
return m_active;
}
void setActive(bool active);
void hide();
void show();
void setInputMethodCommand(const QString &path);
Q_SIGNALS:
void activeChanged(bool active);
void enabledChanged(bool enabled);
private Q_SLOTS:
void clientAdded(AbstractClient* client);
// textinput interface slots
void handleFocusedSurfaceChanged();
void surroundingTextChanged();
void contentTypeChanged();
void textInputInterfaceV2EnabledChanged();
void textInputInterfaceV3EnabledChanged();
void stateCommitted(uint32_t serial);
void textInputInterfaceV2StateUpdated(quint32 serial, KWaylandServer::TextInputV2Interface::UpdateReason reason);
// inputcontext slots
void setPreeditString(uint32_t serial, const QString &text, const QString &commit);
void setPreeditCursor(qint32 index);
private:
void updateSni();
void updateInputPanelState();
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void adoptInputMethodContext();
void commitString(qint32 serial, const QString &text);
void keysymReceived(quint32 serial, quint32 time, quint32 sym, bool pressed, Qt::KeyboardModifiers modifiers);
void deleteSurroundingText(int32_t index, uint32_t length);
void setCursorPosition(qint32 index, qint32 anchor);
void setLanguage(uint32_t serial, const QString &language);
void setTextDirection(uint32_t serial, Qt::LayoutDirection direction);
void startInputMethod();
void stopInputMethod();
struct {
QString text = QString();
quint32 begin = 0;
quint32 end = 0;
} preedit;
bool m_enabled = false;
bool m_active = false;
quint32 m_serial = 0;
QScopedPointer<KStatusNotifierItem> m_sni;
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QPointer<AbstractClient> m_inputClient;
QPointer<AbstractClient> m_trackedClient;
QProcess *m_inputMethodProcess = nullptr;
QTimer m_inputMethodCrashTimer;
uint m_inputMethodCrashes = 0;
QString m_inputMethodCommand;
KWIN_SINGLETON(InputMethod)
};
}
#endif