278 lines
9 KiB
C++
278 lines
9 KiB
C++
/*
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KWin - the KDE window manager
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This file is part of the KDE project.
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SPDX-FileCopyrightText: 2013, 2016 Martin Gräßlin <mgraesslin@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "keyboard_input.h"
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#include "input_event.h"
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#include "input_event_spy.h"
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#include "keyboard_layout.h"
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#include "keyboard_repeat.h"
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#include "abstract_client.h"
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#include "modifier_only_shortcuts.h"
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#include "utils.h"
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#include "screenlockerwatcher.h"
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#include "toplevel.h"
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#include "wayland_server.h"
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#include "workspace.h"
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// KWayland
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#include <KWaylandServer/datadevice_interface.h>
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#include <KWaylandServer/keyboard_interface.h>
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#include <KWaylandServer/seat_interface.h>
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//screenlocker
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#include <KScreenLocker/KsldApp>
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// Frameworks
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#include <KGlobalAccel>
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// Qt
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#include <QKeyEvent>
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#include <cmath>
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namespace KWin
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{
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KeyboardInputRedirection::KeyboardInputRedirection(InputRedirection *parent)
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: QObject(parent)
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, m_input(parent)
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, m_xkb(new Xkb(parent))
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{
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connect(m_xkb.data(), &Xkb::ledsChanged, this, &KeyboardInputRedirection::ledsChanged);
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if (waylandServer()) {
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m_xkb->setSeat(waylandServer()->seat());
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}
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}
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KeyboardInputRedirection::~KeyboardInputRedirection() = default;
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class KeyStateChangedSpy : public InputEventSpy
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{
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public:
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KeyStateChangedSpy(InputRedirection *input)
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: m_input(input)
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{
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}
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void keyEvent(KeyEvent *event) override
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{
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if (event->isAutoRepeat()) {
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return;
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}
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Q_EMIT m_input->keyStateChanged(event->nativeScanCode(), event->type() == QEvent::KeyPress ? InputRedirection::KeyboardKeyPressed : InputRedirection::KeyboardKeyReleased);
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}
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private:
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InputRedirection *m_input;
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};
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class ModifiersChangedSpy : public InputEventSpy
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{
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public:
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ModifiersChangedSpy(InputRedirection *input)
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: m_input(input)
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, m_modifiers()
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{
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}
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void keyEvent(KeyEvent *event) override
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{
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if (event->isAutoRepeat()) {
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return;
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}
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updateModifiers(event->modifiers());
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}
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void updateModifiers(Qt::KeyboardModifiers mods)
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{
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if (mods == m_modifiers) {
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return;
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}
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Q_EMIT m_input->keyboardModifiersChanged(mods, m_modifiers);
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m_modifiers = mods;
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}
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private:
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InputRedirection *m_input;
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Qt::KeyboardModifiers m_modifiers;
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};
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void KeyboardInputRedirection::init()
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{
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Q_ASSERT(!m_inited);
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m_inited = true;
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const auto config = kwinApp()->kxkbConfig();
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m_xkb->setNumLockConfig(InputConfig::self()->inputConfig());
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m_xkb->setConfig(config);
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// Workaround for QTBUG-54371: if there is no real keyboard Qt doesn't request virtual keyboard
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waylandServer()->seat()->setHasKeyboard(true);
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// connect(m_input, &InputRedirection::hasAlphaNumericKeyboardChanged,
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// waylandServer()->seat(), &KWaylandServer::SeatInterface::setHasKeyboard);
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m_input->installInputEventSpy(new KeyStateChangedSpy(m_input));
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m_modifiersChangedSpy = new ModifiersChangedSpy(m_input);
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m_input->installInputEventSpy(m_modifiersChangedSpy);
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m_keyboardLayout = new KeyboardLayout(m_xkb.data(), config);
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m_keyboardLayout->init();
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m_input->installInputEventSpy(m_keyboardLayout);
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if (waylandServer()->hasGlobalShortcutSupport()) {
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m_input->installInputEventSpy(new ModifierOnlyShortcuts);
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}
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KeyboardRepeat *keyRepeatSpy = new KeyboardRepeat(m_xkb.data());
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connect(keyRepeatSpy, &KeyboardRepeat::keyRepeat, this,
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std::bind(&KeyboardInputRedirection::processKey, this, std::placeholders::_1, InputRedirection::KeyboardKeyAutoRepeat, std::placeholders::_2, nullptr));
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m_input->installInputEventSpy(keyRepeatSpy);
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connect(workspace(), &QObject::destroyed, this, [this] { m_inited = false; });
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connect(waylandServer(), &QObject::destroyed, this, [this] { m_inited = false; });
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connect(workspace(), &Workspace::clientActivated, this,
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[this] {
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disconnect(m_activeClientSurfaceChangedConnection);
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if (auto c = workspace()->activeClient()) {
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m_activeClientSurfaceChangedConnection = connect(c, &Toplevel::surfaceChanged, this, &KeyboardInputRedirection::update);
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} else {
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m_activeClientSurfaceChangedConnection = QMetaObject::Connection();
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}
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update();
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}
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);
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if (waylandServer()->hasScreenLockerIntegration()) {
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connect(ScreenLocker::KSldApp::self(), &ScreenLocker::KSldApp::lockStateChanged, this, &KeyboardInputRedirection::update);
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}
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reconfigure();
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}
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void KeyboardInputRedirection::reconfigure()
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{
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if (waylandServer()->seat()->keyboard()) {
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const auto config = InputConfig::self()->inputConfig()->group(QStringLiteral("Keyboard"));
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const int delay = config.readEntry("RepeatDelay", 660);
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const int rate = std::ceil(config.readEntry("RepeatRate", 25.0));
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const QString repeatMode = config.readEntry("KeyRepeat", "repeat");
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// when the clients will repeat the character or turn repeat key events into an accent character selection, we want
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// to tell the clients that we are indeed repeating keys.
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const bool enabled = repeatMode == QLatin1String("accent") || repeatMode == QLatin1String("repeat");
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waylandServer()->seat()->keyboard()->setRepeatInfo(enabled ? rate : 0, delay);
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}
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}
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void KeyboardInputRedirection::update()
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{
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if (!m_inited) {
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return;
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}
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auto seat = waylandServer()->seat();
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// TODO: this needs better integration
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Toplevel *found = nullptr;
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if (waylandServer()->isScreenLocked()) {
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const QList<Toplevel *> &stacking = Workspace::self()->stackingOrder();
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if (!stacking.isEmpty()) {
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auto it = stacking.end();
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do {
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--it;
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Toplevel *t = (*it);
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if (t->isDeleted()) {
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// a deleted window doesn't get mouse events
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continue;
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}
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if (!t->isLockScreen()) {
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continue;
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}
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if (!t->readyForPainting()) {
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continue;
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}
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found = t;
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break;
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} while (it != stacking.begin());
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}
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} else if (!input()->isSelectingWindow()) {
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found = workspace()->activeClient();
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}
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if (found && found->surface()) {
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if (found->surface() != seat->focusedKeyboardSurface()) {
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seat->setFocusedKeyboardSurface(found->surface());
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}
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} else {
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seat->setFocusedKeyboardSurface(nullptr);
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}
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}
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void KeyboardInputRedirection::processKey(uint32_t key, InputRedirection::KeyboardKeyState state, uint32_t time, InputDevice *device)
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{
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QEvent::Type type;
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bool autoRepeat = false;
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switch (state) {
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case InputRedirection::KeyboardKeyAutoRepeat:
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autoRepeat = true;
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// fall through
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case InputRedirection::KeyboardKeyPressed:
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type = QEvent::KeyPress;
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break;
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case InputRedirection::KeyboardKeyReleased:
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type = QEvent::KeyRelease;
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break;
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default:
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Q_UNREACHABLE();
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}
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const quint32 previousLayout = m_xkb->currentLayout();
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if (!autoRepeat) {
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m_xkb->updateKey(key, state);
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}
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const xkb_keysym_t keySym = m_xkb->currentKeysym();
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const Qt::KeyboardModifiers globalShortcutsModifiers = m_xkb->modifiersRelevantForGlobalShortcuts(key);
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KeyEvent event(type,
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m_xkb->toQtKey(keySym, key, globalShortcutsModifiers ? Qt::ControlModifier : Qt::KeyboardModifiers()),
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m_xkb->modifiers(),
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key,
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keySym,
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m_xkb->toString(keySym),
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autoRepeat,
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time,
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device);
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event.setModifiersRelevantForGlobalShortcuts(globalShortcutsModifiers);
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m_input->processSpies(std::bind(&InputEventSpy::keyEvent, std::placeholders::_1, &event));
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if (!m_inited) {
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return;
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}
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m_lastEventTime = time;
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m_input->processFilters(std::bind(&InputEventFilter::keyEvent, std::placeholders::_1, &event));
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m_xkb->forwardModifiers();
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if (event.modifiersRelevantForGlobalShortcuts() == Qt::KeyboardModifier::NoModifier && type != QEvent::KeyRelease) {
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m_keyboardLayout->checkLayoutChange(previousLayout);
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}
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}
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void KeyboardInputRedirection::processModifiers(uint32_t modsDepressed, uint32_t modsLatched, uint32_t modsLocked, uint32_t group)
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{
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if (!m_inited) {
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return;
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}
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const quint32 previousLayout = m_xkb->currentLayout();
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// TODO: send to proper Client and also send when active Client changes
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m_xkb->updateModifiers(modsDepressed, modsLatched, modsLocked, group);
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m_modifiersChangedSpy->updateModifiers(modifiers());
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m_keyboardLayout->checkLayoutChange(previousLayout);
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}
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void KeyboardInputRedirection::processKeymapChange(int fd, uint32_t size)
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{
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if (!m_inited) {
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return;
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}
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// TODO: should we pass the keymap to our Clients? Or only to the currently active one and update
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m_xkb->installKeymap(fd, size);
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m_keyboardLayout->resetLayout();
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}
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}
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