2017-02-15 19:47:38 +03:00
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/********************************************************************
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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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Copyright (C) 2013, 2016, 2017 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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 <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#include "xkb.h"
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#include "keyboard_input.h"
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#include "utils.h"
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#include "wayland_server.h"
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// frameworks
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#include <KConfigGroup>
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#include <KKeyServer>
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// KWayland
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#include <KWayland/Server/seat_interface.h>
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// Qt
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#include <QTemporaryFile>
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// xkbcommon
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#include <xkbcommon/xkbcommon.h>
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#include <xkbcommon/xkbcommon-compose.h>
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#include <xkbcommon/xkbcommon-keysyms.h>
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// system
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#include <sys/mman.h>
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#include <unistd.h>
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Q_LOGGING_CATEGORY(KWIN_XKB, "kwin_xkbcommon", QtCriticalMsg)
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namespace KWin
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{
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static void xkbLogHandler(xkb_context *context, xkb_log_level priority, const char *format, va_list args)
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{
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Q_UNUSED(context)
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char buf[1024];
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if (std::vsnprintf(buf, 1023, format, args) <= 0) {
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return;
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}
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switch (priority) {
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case XKB_LOG_LEVEL_DEBUG:
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qCDebug(KWIN_XKB) << "XKB:" << buf;
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break;
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case XKB_LOG_LEVEL_INFO:
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qCInfo(KWIN_XKB) << "XKB:" << buf;
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break;
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case XKB_LOG_LEVEL_WARNING:
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qCWarning(KWIN_XKB) << "XKB:" << buf;
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break;
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case XKB_LOG_LEVEL_ERROR:
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case XKB_LOG_LEVEL_CRITICAL:
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default:
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qCCritical(KWIN_XKB) << "XKB:" << buf;
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break;
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}
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}
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Xkb::Xkb(InputRedirection *input)
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: m_input(input)
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, m_context(xkb_context_new(static_cast<xkb_context_flags>(0)))
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, m_keymap(NULL)
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, m_state(NULL)
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, m_shiftModifier(0)
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, m_capsModifier(0)
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, m_controlModifier(0)
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, m_altModifier(0)
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, m_metaModifier(0)
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, m_numLock(0)
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, m_capsLock(0)
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, m_scrollLock(0)
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, m_modifiers(Qt::NoModifier)
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, m_consumedModifiers(Qt::NoModifier)
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, m_keysym(XKB_KEY_NoSymbol)
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, m_leds()
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{
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qRegisterMetaType<KWin::Xkb::LEDs>();
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if (!m_context) {
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qCDebug(KWIN_XKB) << "Could not create xkb context";
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} else {
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xkb_context_set_log_level(m_context, XKB_LOG_LEVEL_DEBUG);
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xkb_context_set_log_fn(m_context, &xkbLogHandler);
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// get locale as described in xkbcommon doc
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// cannot use QLocale as it drops the modifier part
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QByteArray locale = qgetenv("LC_ALL");
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if (locale.isEmpty()) {
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locale = qgetenv("LC_CTYPE");
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}
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if (locale.isEmpty()) {
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locale = qgetenv("LANG");
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}
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if (locale.isEmpty()) {
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locale = QByteArrayLiteral("C");
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}
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m_compose.table = xkb_compose_table_new_from_locale(m_context, locale.constData(), XKB_COMPOSE_COMPILE_NO_FLAGS);
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if (m_compose.table) {
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m_compose.state = xkb_compose_state_new(m_compose.table, XKB_COMPOSE_STATE_NO_FLAGS);
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}
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}
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}
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Xkb::~Xkb()
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{
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xkb_compose_state_unref(m_compose.state);
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xkb_compose_table_unref(m_compose.table);
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xkb_state_unref(m_state);
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xkb_keymap_unref(m_keymap);
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xkb_context_unref(m_context);
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}
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void Xkb::reconfigure()
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{
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if (!m_context) {
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return;
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}
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xkb_keymap *keymap = nullptr;
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if (!qEnvironmentVariableIsSet("KWIN_XKB_DEFAULT_KEYMAP")) {
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keymap = loadKeymapFromConfig();
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}
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if (!keymap) {
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qCDebug(KWIN_XKB) << "Could not create xkb keymap from configuration";
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keymap = loadDefaultKeymap();
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}
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if (keymap) {
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updateKeymap(keymap);
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} else {
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qCDebug(KWIN_XKB) << "Could not create default xkb keymap";
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}
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}
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xkb_keymap *Xkb::loadKeymapFromConfig()
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{
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// load config
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if (!m_config) {
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return nullptr;
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}
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const KConfigGroup config = m_config->group("Layout");
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const QByteArray model = config.readEntry("Model", "pc104").toLocal8Bit();
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const QByteArray layout = config.readEntry("LayoutList", "").toLocal8Bit();
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const QByteArray options = config.readEntry("Options", "").toLocal8Bit();
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xkb_rule_names ruleNames = {
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.rules = nullptr,
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.model = model.constData(),
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.layout = layout.constData(),
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.variant = nullptr,
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.options = options.constData()
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};
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return xkb_keymap_new_from_names(m_context, &ruleNames, XKB_KEYMAP_COMPILE_NO_FLAGS);
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}
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xkb_keymap *Xkb::loadDefaultKeymap()
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{
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return xkb_keymap_new_from_names(m_context, nullptr, XKB_KEYMAP_COMPILE_NO_FLAGS);
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}
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void Xkb::installKeymap(int fd, uint32_t size)
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{
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if (!m_context) {
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return;
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}
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char *map = reinterpret_cast<char*>(mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0));
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if (map == MAP_FAILED) {
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return;
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}
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xkb_keymap *keymap = xkb_keymap_new_from_string(m_context, map, XKB_KEYMAP_FORMAT_TEXT_V1, XKB_MAP_COMPILE_PLACEHOLDER);
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munmap(map, size);
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if (!keymap) {
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qCDebug(KWIN_XKB) << "Could not map keymap from file";
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return;
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}
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updateKeymap(keymap);
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}
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void Xkb::updateKeymap(xkb_keymap *keymap)
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{
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Q_ASSERT(keymap);
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xkb_state *state = xkb_state_new(keymap);
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if (!state) {
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qCDebug(KWIN_XKB) << "Could not create XKB state";
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xkb_keymap_unref(keymap);
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return;
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}
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// now release the old ones
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xkb_state_unref(m_state);
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xkb_keymap_unref(m_keymap);
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m_keymap = keymap;
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m_state = state;
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m_shiftModifier = xkb_keymap_mod_get_index(m_keymap, XKB_MOD_NAME_SHIFT);
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m_capsModifier = xkb_keymap_mod_get_index(m_keymap, XKB_MOD_NAME_CAPS);
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m_controlModifier = xkb_keymap_mod_get_index(m_keymap, XKB_MOD_NAME_CTRL);
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m_altModifier = xkb_keymap_mod_get_index(m_keymap, XKB_MOD_NAME_ALT);
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m_metaModifier = xkb_keymap_mod_get_index(m_keymap, XKB_MOD_NAME_LOGO);
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m_numLock = xkb_keymap_led_get_index(m_keymap, XKB_LED_NAME_NUM);
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m_capsLock = xkb_keymap_led_get_index(m_keymap, XKB_LED_NAME_CAPS);
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m_scrollLock = xkb_keymap_led_get_index(m_keymap, XKB_LED_NAME_SCROLL);
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m_currentLayout = xkb_state_serialize_layout(m_state, XKB_STATE_LAYOUT_EFFECTIVE);
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2017-04-14 22:01:20 +03:00
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m_modifierState.depressed = xkb_state_serialize_mods(m_state, xkb_state_component(XKB_STATE_MODS_DEPRESSED));
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m_modifierState.latched = xkb_state_serialize_mods(m_state, xkb_state_component(XKB_STATE_MODS_LATCHED));
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m_modifierState.locked = xkb_state_serialize_mods(m_state, xkb_state_component(XKB_STATE_MODS_LOCKED));
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2017-02-15 19:47:38 +03:00
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createKeymapFile();
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2017-04-14 22:01:20 +03:00
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forwardModifiers();
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2017-02-15 19:47:38 +03:00
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}
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void Xkb::createKeymapFile()
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{
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if (!waylandServer()) {
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return;
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}
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// TODO: uninstall keymap on server?
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if (!m_keymap) {
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return;
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}
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ScopedCPointer<char> keymapString(xkb_keymap_get_as_string(m_keymap, XKB_KEYMAP_FORMAT_TEXT_V1));
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if (keymapString.isNull()) {
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return;
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}
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const uint size = qstrlen(keymapString.data()) + 1;
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QTemporaryFile *tmp = new QTemporaryFile(m_input);
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if (!tmp->open()) {
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delete tmp;
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return;
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}
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unlink(tmp->fileName().toUtf8().constData());
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if (!tmp->resize(size)) {
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delete tmp;
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return;
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}
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uchar *address = tmp->map(0, size);
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if (!address) {
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return;
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}
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if (qstrncpy(reinterpret_cast<char*>(address), keymapString.data(), size) == nullptr) {
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delete tmp;
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return;
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}
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waylandServer()->seat()->setKeymap(tmp->handle(), size);
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}
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void Xkb::updateModifiers(uint32_t modsDepressed, uint32_t modsLatched, uint32_t modsLocked, uint32_t group)
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{
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if (!m_keymap || !m_state) {
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return;
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}
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xkb_state_update_mask(m_state, modsDepressed, modsLatched, modsLocked, 0, 0, group);
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updateModifiers();
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2017-04-14 22:01:20 +03:00
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forwardModifiers();
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2017-02-15 19:47:38 +03:00
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}
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void Xkb::updateKey(uint32_t key, InputRedirection::KeyboardKeyState state)
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{
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if (!m_keymap || !m_state) {
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return;
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}
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xkb_state_update_key(m_state, key + 8, static_cast<xkb_key_direction>(state));
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if (state == InputRedirection::KeyboardKeyPressed) {
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const auto sym = toKeysym(key);
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if (m_compose.state && xkb_compose_state_feed(m_compose.state, sym) == XKB_COMPOSE_FEED_ACCEPTED) {
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switch (xkb_compose_state_get_status(m_compose.state)) {
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case XKB_COMPOSE_NOTHING:
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m_keysym = sym;
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break;
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case XKB_COMPOSE_COMPOSED:
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m_keysym = xkb_compose_state_get_one_sym(m_compose.state);
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break;
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default:
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m_keysym = XKB_KEY_NoSymbol;
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break;
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}
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} else {
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m_keysym = sym;
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}
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}
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updateModifiers();
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updateConsumedModifiers(key);
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}
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void Xkb::updateModifiers()
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{
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Qt::KeyboardModifiers mods = Qt::NoModifier;
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if (xkb_state_mod_index_is_active(m_state, m_shiftModifier, XKB_STATE_MODS_EFFECTIVE) == 1 ||
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xkb_state_mod_index_is_active(m_state, m_capsModifier, XKB_STATE_MODS_EFFECTIVE) == 1) {
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mods |= Qt::ShiftModifier;
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}
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if (xkb_state_mod_index_is_active(m_state, m_altModifier, XKB_STATE_MODS_EFFECTIVE) == 1) {
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mods |= Qt::AltModifier;
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}
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if (xkb_state_mod_index_is_active(m_state, m_controlModifier, XKB_STATE_MODS_EFFECTIVE) == 1) {
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mods |= Qt::ControlModifier;
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}
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if (xkb_state_mod_index_is_active(m_state, m_metaModifier, XKB_STATE_MODS_EFFECTIVE) == 1) {
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mods |= Qt::MetaModifier;
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}
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m_modifiers = mods;
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// update LEDs
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LEDs leds;
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if (xkb_state_led_index_is_active(m_state, m_numLock) == 1) {
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leds = leds | LED::NumLock;
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}
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if (xkb_state_led_index_is_active(m_state, m_capsLock) == 1) {
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leds = leds | LED::CapsLock;
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}
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if (xkb_state_led_index_is_active(m_state, m_scrollLock) == 1) {
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leds = leds | LED::ScrollLock;
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}
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if (m_leds != leds) {
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m_leds = leds;
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emit m_input->keyboard()->ledsChanged(m_leds);
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}
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2017-04-14 22:01:20 +03:00
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m_currentLayout = xkb_state_serialize_layout(m_state, XKB_STATE_LAYOUT_EFFECTIVE);
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m_modifierState.depressed = xkb_state_serialize_mods(m_state, xkb_state_component(XKB_STATE_MODS_DEPRESSED));
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m_modifierState.latched = xkb_state_serialize_mods(m_state, xkb_state_component(XKB_STATE_MODS_LATCHED));
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m_modifierState.locked = xkb_state_serialize_mods(m_state, xkb_state_component(XKB_STATE_MODS_LOCKED));
|
|
|
|
}
|
|
|
|
|
|
|
|
void Xkb::forwardModifiers()
|
|
|
|
{
|
|
|
|
if (!waylandServer()) {
|
|
|
|
return;
|
2017-02-15 19:47:38 +03:00
|
|
|
}
|
2017-04-14 22:01:20 +03:00
|
|
|
waylandServer()->seat()->updateKeyboardModifiers(m_modifierState.depressed,
|
|
|
|
m_modifierState.latched,
|
|
|
|
m_modifierState.locked,
|
|
|
|
m_currentLayout);
|
2017-02-15 19:47:38 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
QString Xkb::layoutName() const
|
|
|
|
{
|
|
|
|
return layoutName(m_currentLayout);
|
|
|
|
}
|
|
|
|
|
|
|
|
QString Xkb::layoutName(xkb_layout_index_t layout) const
|
|
|
|
{
|
2017-06-18 22:01:30 +03:00
|
|
|
if (!m_keymap) {
|
|
|
|
return QString{};
|
|
|
|
}
|
2017-02-15 19:47:38 +03:00
|
|
|
return QString::fromLocal8Bit(xkb_keymap_layout_get_name(m_keymap, layout));
|
|
|
|
}
|
|
|
|
|
|
|
|
QMap<xkb_layout_index_t, QString> Xkb::layoutNames() const
|
|
|
|
{
|
|
|
|
QMap<xkb_layout_index_t, QString> layouts;
|
2017-06-18 22:01:30 +03:00
|
|
|
const auto size = m_keymap ? xkb_keymap_num_layouts(m_keymap) : 0u;
|
2017-02-15 19:47:38 +03:00
|
|
|
for (xkb_layout_index_t i = 0; i < size; i++) {
|
|
|
|
layouts.insert(i, layoutName(i));
|
|
|
|
}
|
|
|
|
return layouts;
|
|
|
|
}
|
|
|
|
|
|
|
|
void Xkb::updateConsumedModifiers(uint32_t key)
|
|
|
|
{
|
|
|
|
Qt::KeyboardModifiers mods = Qt::NoModifier;
|
|
|
|
if (xkb_state_mod_index_is_consumed2(m_state, key + 8, m_shiftModifier, XKB_CONSUMED_MODE_GTK) == 1) {
|
|
|
|
mods |= Qt::ShiftModifier;
|
|
|
|
}
|
|
|
|
if (xkb_state_mod_index_is_consumed2(m_state, key + 8, m_altModifier, XKB_CONSUMED_MODE_GTK) == 1) {
|
|
|
|
mods |= Qt::AltModifier;
|
|
|
|
}
|
|
|
|
if (xkb_state_mod_index_is_consumed2(m_state, key + 8, m_controlModifier, XKB_CONSUMED_MODE_GTK) == 1) {
|
|
|
|
mods |= Qt::ControlModifier;
|
|
|
|
}
|
|
|
|
if (xkb_state_mod_index_is_consumed2(m_state, key + 8, m_metaModifier, XKB_CONSUMED_MODE_GTK) == 1) {
|
|
|
|
mods |= Qt::MetaModifier;
|
|
|
|
}
|
|
|
|
m_consumedModifiers = mods;
|
|
|
|
}
|
|
|
|
|
|
|
|
Qt::KeyboardModifiers Xkb::modifiersRelevantForGlobalShortcuts() const
|
|
|
|
{
|
2017-06-18 22:01:30 +03:00
|
|
|
if (!m_state) {
|
|
|
|
return Qt::NoModifier;
|
|
|
|
}
|
2017-02-15 19:47:38 +03:00
|
|
|
Qt::KeyboardModifiers mods = Qt::NoModifier;
|
|
|
|
if (xkb_state_mod_index_is_active(m_state, m_shiftModifier, XKB_STATE_MODS_EFFECTIVE) == 1) {
|
|
|
|
mods |= Qt::ShiftModifier;
|
|
|
|
}
|
|
|
|
if (xkb_state_mod_index_is_active(m_state, m_altModifier, XKB_STATE_MODS_EFFECTIVE) == 1) {
|
|
|
|
mods |= Qt::AltModifier;
|
|
|
|
}
|
|
|
|
if (xkb_state_mod_index_is_active(m_state, m_controlModifier, XKB_STATE_MODS_EFFECTIVE) == 1) {
|
|
|
|
mods |= Qt::ControlModifier;
|
|
|
|
}
|
|
|
|
if (xkb_state_mod_index_is_active(m_state, m_metaModifier, XKB_STATE_MODS_EFFECTIVE) == 1) {
|
|
|
|
mods |= Qt::MetaModifier;
|
|
|
|
}
|
|
|
|
|
|
|
|
Qt::KeyboardModifiers consumedMods = m_consumedModifiers;
|
|
|
|
if ((mods & Qt::ShiftModifier) && (consumedMods == Qt::ShiftModifier)) {
|
|
|
|
// test whether current keysym is a letter
|
|
|
|
// in that case the shift should be removed from the consumed modifiers again
|
|
|
|
// otherwise it would not be possible to trigger e.g. Shift+W as a shortcut
|
|
|
|
// see BUG: 370341
|
|
|
|
if (QChar(toQtKey(m_keysym)).isLetter()) {
|
|
|
|
consumedMods = Qt::KeyboardModifiers();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return mods & ~consumedMods;
|
|
|
|
}
|
|
|
|
|
|
|
|
xkb_keysym_t Xkb::toKeysym(uint32_t key)
|
|
|
|
{
|
|
|
|
if (!m_state) {
|
|
|
|
return XKB_KEY_NoSymbol;
|
|
|
|
}
|
|
|
|
return xkb_state_key_get_one_sym(m_state, key + 8);
|
|
|
|
}
|
|
|
|
|
|
|
|
QString Xkb::toString(xkb_keysym_t keysym)
|
|
|
|
{
|
|
|
|
if (!m_state || keysym == XKB_KEY_NoSymbol) {
|
|
|
|
return QString();
|
|
|
|
}
|
|
|
|
QByteArray byteArray(7, 0);
|
|
|
|
int ok = xkb_keysym_to_utf8(keysym, byteArray.data(), byteArray.size());
|
|
|
|
if (ok == -1 || ok == 0) {
|
|
|
|
return QString();
|
|
|
|
}
|
|
|
|
return QString::fromUtf8(byteArray.constData());
|
|
|
|
}
|
|
|
|
|
|
|
|
Qt::Key Xkb::toQtKey(xkb_keysym_t keysym) const
|
|
|
|
{
|
|
|
|
int key = Qt::Key_unknown;
|
|
|
|
KKeyServer::symXToKeyQt(keysym, &key);
|
|
|
|
return static_cast<Qt::Key>(key);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool Xkb::shouldKeyRepeat(quint32 key) const
|
|
|
|
{
|
|
|
|
if (!m_keymap) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
return xkb_keymap_key_repeats(m_keymap, key + 8) != 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void Xkb::switchToNextLayout()
|
|
|
|
{
|
|
|
|
if (!m_keymap || !m_state) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
const xkb_layout_index_t numLayouts = xkb_keymap_num_layouts(m_keymap);
|
|
|
|
const xkb_layout_index_t nextLayout = (xkb_state_serialize_layout(m_state, XKB_STATE_LAYOUT_EFFECTIVE) + 1) % numLayouts;
|
|
|
|
switchToLayout(nextLayout);
|
|
|
|
}
|
|
|
|
|
|
|
|
void Xkb::switchToPreviousLayout()
|
|
|
|
{
|
|
|
|
if (!m_keymap || !m_state) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
const xkb_layout_index_t previousLayout = m_currentLayout == 0 ? numberOfLayouts() - 1 : m_currentLayout -1;
|
|
|
|
switchToLayout(previousLayout);
|
|
|
|
}
|
|
|
|
|
|
|
|
void Xkb::switchToLayout(xkb_layout_index_t layout)
|
|
|
|
{
|
|
|
|
if (!m_keymap || !m_state) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (layout >= numberOfLayouts()) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
const xkb_mod_mask_t depressed = xkb_state_serialize_mods(m_state, xkb_state_component(XKB_STATE_MODS_DEPRESSED));
|
|
|
|
const xkb_mod_mask_t latched = xkb_state_serialize_mods(m_state, xkb_state_component(XKB_STATE_MODS_LATCHED));
|
|
|
|
const xkb_mod_mask_t locked = xkb_state_serialize_mods(m_state, xkb_state_component(XKB_STATE_MODS_LOCKED));
|
|
|
|
xkb_state_update_mask(m_state, depressed, latched, locked, 0, 0, layout);
|
|
|
|
updateModifiers();
|
2017-04-14 22:01:20 +03:00
|
|
|
forwardModifiers();
|
2017-02-15 19:47:38 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
quint32 Xkb::numberOfLayouts() const
|
|
|
|
{
|
|
|
|
if (!m_keymap) {
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
return xkb_keymap_num_layouts(m_keymap);
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|