qwaylandkeyboard_p.h

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// Copyright (C) 2017 The Qt Company Ltd.
// Copyright (C) 2017 Klarälvdalens Datakonsult AB (KDAB).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
// Qt-Security score:critical reason:network-protocol
 
#ifndef QTWAYLAND_QWLKEYBOARD_P_H
#define QTWAYLAND_QWLKEYBOARD_P_H
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtWaylandCompositor/private/qwaylandcompositor_p.h>
 
#include <QtWaylandCompositor/private/qtwaylandcompositorglobal_p.h>
#include <QtWaylandCompositor/qwaylandseat.h>
#include <QtWaylandCompositor/qwaylandkeyboard.h>
#include <QtWaylandCompositor/qwaylanddestroylistener.h>
 
#include <QtCore/private/qobject_p.h>
#include <QtWaylandCompositor/private/qwayland-server-wayland.h>
 
#include <QtCore/QList>
 
#if QT_CONFIG(xkbcommon)
#include <xkbcommon/xkbcommon.h>
#include <QtGui/private/qxkbcommon_p.h>
#endif
 
 
QT_BEGIN_NAMESPACE
 
class Q_WAYLANDCOMPOSITOR_EXPORT QWaylandKeyboardPrivate : public QObjectPrivate
                                                  , public QtWaylandServer::wl_keyboard
{
public:
    Q_DECLARE_PUBLIC(QWaylandKeyboard)
 
    static QWaylandKeyboardPrivate *get(QWaylandKeyboard *keyboard);
 
    QWaylandKeyboardPrivate(QWaylandSeat *seat);
    ~QWaylandKeyboardPrivate() override;
 
    QWaylandCompositor *compositor() const { return seat->compositor(); }
 
    void focused(QWaylandSurface* surface);
 
#if QT_CONFIG(xkbcommon)
    struct xkb_state *xkbState() const { return mXkbState.get(); }
    struct xkb_context *xkbContext() const {
        return QWaylandCompositorPrivate::get(seat->compositor())->xkbContext();
    }
    uint32_t xkbModsMask() const { return modsDepressed | modsLatched | modsLocked; }
    void maybeUpdateXkbScanCodeTable();
    void resetKeyboardState();
#endif
 
    void keyEvent(uint code, uint32_t state);
    void sendKeyEvent(uint code, uint32_t state);
    void updateModifierState(uint code, uint32_t state);
    void checkAndRepairModifierState(QKeyEvent *ke);
    void maybeUpdateKeymap();
 
    void checkFocusResource(Resource *resource);
    void sendEnter(QWaylandSurface *surface, Resource *resource);
 
protected:
    void keyboard_bind_resource(Resource *resource) override;
    void keyboard_destroy_resource(Resource *resource) override;
    void keyboard_release(Resource *resource) override;
 
private:
#if QT_CONFIG(xkbcommon)
    void createXKBKeymap();
    void createXKBState(xkb_keymap *keymap);
#endif
    static uint toWaylandKey(const uint nativeScanCode);
    static uint fromWaylandKey(const uint key);
 
    void sendRepeatInfo();
 
    QWaylandSeat *seat = nullptr;
 
    QWaylandSurface *focus = nullptr;
    Resource *focusResource = nullptr;
    QWaylandDestroyListener focusDestroyListener;
 
public:
    QList<uint32_t> keys;
    uint32_t modsDepressed = 0;
    uint32_t modsLatched = 0;
    uint32_t modsLocked = 0;
    uint32_t group = 0;
 
    uint32_t shiftIndex = 0;
    uint32_t controlIndex = 0;
    uint32_t altIndex = 0;
    uint32_t mod5Index = 0;  // AltGr (ISO_Level3_Shift) - maps to Qt::GroupSwitchModifier
 
private:
    Qt::KeyboardModifiers currentModifierState;
 
    bool pendingKeymap = false;
#if QT_CONFIG(xkbcommon)
    size_t keymap_size;
    int keymap_fd = -1;
    char *keymap_area = nullptr;
    using ScanCodeKey = std::pair<uint,int>; // group/layout and QtKey
    QMap<ScanCodeKey, uint> scanCodesByQtKey;
    QXkbCommon::ScopedXKBState mXkbState;
#endif
 
    quint32 repeatRate = 40;
    quint32 repeatDelay = 400;
};
 
QT_END_NAMESPACE
 
#endif // QTWAYLAND_QWLKEYBOARD_P_H