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137 lines
4.0 KiB
137 lines
4.0 KiB
2 years ago
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/* capslock_unix.cpp - Helper to check whether Caps Lock is on
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* Copyright (C) 2021 g10 Code GmbH
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*
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* Software engineering by Ingo Klöcker <dev@ingo-kloecker.de>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <https://www.gnu.org/licenses/>.
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "capslock.h"
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#include "capslock_p.h"
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#ifdef PINENTRY_QT_WAYLAND
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# include <KWayland/Client/connection_thread.h>
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# include <KWayland/Client/keyboard.h>
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# include <KWayland/Client/registry.h>
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# include <KWayland/Client/seat.h>
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#endif
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#include <QGuiApplication>
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#ifdef PINENTRY_QT_X11
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# include <QX11Info>
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# include <X11/XKBlib.h>
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# undef Status
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#endif
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#include <QDebug>
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#ifdef PINENTRY_QT_WAYLAND
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using namespace KWayland::Client;
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#endif
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#ifdef PINENTRY_QT_WAYLAND
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static bool watchingWayland = false;
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#endif
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LockState capsLockState()
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{
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static bool reportUnsupportedPlatform = true;
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#ifdef PINENTRY_QT_X11
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if (qApp->platformName() == QLatin1String("xcb")) {
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unsigned int state;
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XkbGetIndicatorState(QX11Info::display(), XkbUseCoreKbd, &state);
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return (state & 0x01) == 1 ? LockState::On : LockState::Off;
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}
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#endif
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#ifdef PINENTRY_QT_WAYLAND
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if (qApp->platformName() == QLatin1String("wayland")) {
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if (!watchingWayland && reportUnsupportedPlatform) {
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qDebug() << "Use CapsLockWatcher for checking for Caps Lock on Wayland";
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}
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} else
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#endif
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if (reportUnsupportedPlatform) {
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qWarning() << "Checking for Caps Lock not possible on unsupported platform:" << qApp->platformName();
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}
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reportUnsupportedPlatform = false;
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return LockState::Unknown;
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}
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#ifdef PINENTRY_QT_WAYLAND
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void CapsLockWatcher::Private::watchWayland()
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{
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watchingWayland = true;
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auto connection = ConnectionThread::fromApplication(q);
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if (!connection) {
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qWarning() << "Failed to get connection to Wayland server from QPA";
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return;
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}
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registry = new Registry{q};
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registry->create(connection);
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if (!registry->isValid()) {
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qWarning() << "Failed to create valid KWayland registry";
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return;
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}
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registry->setup();
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connect(registry, &Registry::seatAnnounced,
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q, [this] (quint32 name, quint32 version) { registry_seatAnnounced(name, version); });
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}
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void CapsLockWatcher::Private::registry_seatAnnounced(quint32 name, quint32 version)
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{
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Q_ASSERT(registry);
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seat = registry->createSeat(name, version, q);
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if (!seat->isValid()) {
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qWarning() << "Failed to create valid KWayland seat";
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return;
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}
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connect(seat, &Seat::hasKeyboardChanged,
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q, [this] (bool hasKeyboard) { seat_hasKeyboardChanged(hasKeyboard); });
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}
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void CapsLockWatcher::Private::seat_hasKeyboardChanged(bool hasKeyboard)
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{
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Q_ASSERT(seat);
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if (!hasKeyboard) {
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qDebug() << "Seat has no keyboard";
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return;
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}
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auto keyboard = seat->createKeyboard(q);
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if (!keyboard->isValid()) {
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qWarning() << "Failed to create valid KWayland keyboard";
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return;
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}
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connect(keyboard, &Keyboard::modifiersChanged,
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q, [this] (quint32, quint32, quint32 locked, quint32) { keyboard_modifiersChanged(locked); });
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}
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void CapsLockWatcher::Private::keyboard_modifiersChanged(quint32 locked)
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{
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const bool capsLockIsLocked = (locked & 2u) != 0;
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qDebug() << "Caps Lock is locked:" << capsLockIsLocked;
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Q_EMIT q->stateChanged(capsLockIsLocked);
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}
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#endif
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