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core.cpp
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core.cpp
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/* BEGIN_COMMON_COPYRIGHT_HEADER
* (c)LGPL2+
*
* LXQt - a lightweight, Qt based, desktop toolset
* https://lxqt.org
*
* Copyright: 2013 Razor team
* Authors:
* Kuzma Shapran <[email protected]>
*
* This program or library is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* END_COMMON_COPYRIGHT_HEADER */
#include <LXQt/Application>
#include <QScopedArrayPointer>
#include <QSettings>
#include <QStandardPaths>
#include <QTimer>
#include <QDBusConnectionInterface>
#include <QDBusServiceWatcher>
#include <QFile>
#include <QString>
#include <cstddef>
#include <cstdlib>
#include <unistd.h>
#include <poll.h>
#include <csignal>
#include <cstdarg>
#include <cerrno>
#include <cstring>
#include <cstdio>
#include <mutex>
#include <stdexcept>
#include "pipe_utils.h"
#include "string_utils.h"
#include "daemon_adaptor.h"
#include "native_adaptor.h"
#include "base_action.h"
#include "method_action.h"
#include "client_action.h"
#include "command_action.h"
#include "core.h"
enum
{
X11_OP_StringToKeycode,
X11_OP_KeycodeToString,
X11_OP_XGrabKey,
X11_OP_XUngrabKey,
X11_OP_XGrabKeyboard,
X11_OP_XUngrabKeyboard
};
static Core *s_Core = nullptr;
static const QLatin1String ExecKey("Exec");
static const QLatin1String EnabledKey("Enabled");
static const QLatin1String CommentKey("Comment");
static const QLatin1String serviceKey("service");
static const QLatin1String pathKey("path");
static const QLatin1String interfaceKey("interface");
static const QLatin1String methodKey("method");
static const QLatin1String firstStr("first");
static const QLatin1String lastStr("last");
static const QLatin1String allStr("all");
static const QLatin1String noneStr("none");
int x11ErrorHandler(Display *display, XErrorEvent *errorEvent)
{
if (s_Core)
{
return s_Core->x11ErrorHandler(display, errorEvent);
}
return 0;
}
const char *x11opcodeToString(unsigned char opcode)
{
switch (opcode)
{
case X_CreateWindow:
return "CreateWindow";
case X_ChangeWindowAttributes:
return "ChangeWindowAttributes";
case X_GetWindowAttributes:
return "GetWindowAttributes";
case X_DestroyWindow:
return "DestroyWindow";
case X_DestroySubwindows:
return "DestroySubwindows";
case X_ChangeSaveSet:
return "ChangeSaveSet";
case X_ReparentWindow:
return "ReparentWindow";
case X_MapWindow:
return "MapWindow";
case X_MapSubwindows:
return "MapSubwindows";
case X_UnmapWindow:
return "UnmapWindow";
case X_UnmapSubwindows:
return "UnmapSubwindows";
case X_ConfigureWindow:
return "ConfigureWindow";
case X_CirculateWindow:
return "CirculateWindow";
case X_GetGeometry:
return "GetGeometry";
case X_QueryTree:
return "QueryTree";
case X_InternAtom:
return "InternAtom";
case X_GetAtomName:
return "GetAtomName";
case X_ChangeProperty:
return "ChangeProperty";
case X_DeleteProperty:
return "DeleteProperty";
case X_GetProperty:
return "GetProperty";
case X_ListProperties:
return "ListProperties";
case X_SetSelectionOwner:
return "SetSelectionOwner";
case X_GetSelectionOwner:
return "GetSelectionOwner";
case X_ConvertSelection:
return "ConvertSelection";
case X_SendEvent:
return "SendEvent";
case X_GrabPointer:
return "GrabPointer";
case X_UngrabPointer:
return "UngrabPointer";
case X_GrabButton:
return "GrabButton";
case X_UngrabButton:
return "UngrabButton";
case X_ChangeActivePointerGrab:
return "ChangeActivePointerGrab";
case X_GrabKeyboard:
return "GrabKeyboard";
case X_UngrabKeyboard:
return "UngrabKeyboard";
case X_GrabKey:
return "GrabKey";
case X_UngrabKey:
return "UngrabKey";
case X_AllowEvents:
return "AllowEvents";
case X_GrabServer:
return "GrabServer";
case X_UngrabServer:
return "UngrabServer";
case X_QueryPointer:
return "QueryPointer";
case X_GetMotionEvents:
return "GetMotionEvents";
case X_TranslateCoords:
return "TranslateCoords";
case X_WarpPointer:
return "WarpPointer";
case X_SetInputFocus:
return "SetInputFocus";
case X_GetInputFocus:
return "GetInputFocus";
case X_QueryKeymap:
return "QueryKeymap";
case X_OpenFont:
return "OpenFont";
case X_CloseFont:
return "CloseFont";
case X_QueryFont:
return "QueryFont";
case X_QueryTextExtents:
return "QueryTextExtents";
case X_ListFonts:
return "ListFonts";
case X_ListFontsWithInfo:
return "ListFontsWithInfo";
case X_SetFontPath:
return "SetFontPath";
case X_GetFontPath:
return "GetFontPath";
case X_CreatePixmap:
return "CreatePixmap";
case X_FreePixmap:
return "FreePixmap";
case X_CreateGC:
return "CreateGC";
case X_ChangeGC:
return "ChangeGC";
case X_CopyGC:
return "CopyGC";
case X_SetDashes:
return "SetDashes";
case X_SetClipRectangles:
return "SetClipRectangles";
case X_FreeGC:
return "FreeGC";
case X_ClearArea:
return "ClearArea";
case X_CopyArea:
return "CopyArea";
case X_CopyPlane:
return "CopyPlane";
case X_PolyPoint:
return "PolyPoint";
case X_PolyLine:
return "PolyLine";
case X_PolySegment:
return "PolySegment";
case X_PolyRectangle:
return "PolyRectangle";
case X_PolyArc:
return "PolyArc";
case X_FillPoly:
return "FillPoly";
case X_PolyFillRectangle:
return "PolyFillRectangle";
case X_PolyFillArc:
return "PolyFillArc";
case X_PutImage:
return "PutImage";
case X_GetImage:
return "GetImage";
case X_PolyText8:
return "PolyText8";
case X_PolyText16:
return "PolyText16";
case X_ImageText8:
return "ImageText8";
case X_ImageText16:
return "ImageText16";
case X_CreateColormap:
return "CreateColormap";
case X_FreeColormap:
return "FreeColormap";
case X_CopyColormapAndFree:
return "CopyColormapAndFree";
case X_InstallColormap:
return "InstallColormap";
case X_UninstallColormap:
return "UninstallColormap";
case X_ListInstalledColormaps:
return "ListInstalledColormaps";
case X_AllocColor:
return "AllocColor";
case X_AllocNamedColor:
return "AllocNamedColor";
case X_AllocColorCells:
return "AllocColorCells";
case X_AllocColorPlanes:
return "AllocColorPlanes";
case X_FreeColors:
return "FreeColors";
case X_StoreColors:
return "StoreColors";
case X_StoreNamedColor:
return "StoreNamedColor";
case X_QueryColors:
return "QueryColors";
case X_LookupColor:
return "LookupColor";
case X_CreateCursor:
return "CreateCursor";
case X_CreateGlyphCursor:
return "CreateGlyphCursor";
case X_FreeCursor:
return "FreeCursor";
case X_RecolorCursor:
return "RecolorCursor";
case X_QueryBestSize:
return "QueryBestSize";
case X_QueryExtension:
return "QueryExtension";
case X_ListExtensions:
return "ListExtensions";
case X_ChangeKeyboardMapping:
return "ChangeKeyboardMapping";
case X_GetKeyboardMapping:
return "GetKeyboardMapping";
case X_ChangeKeyboardControl:
return "ChangeKeyboardControl";
case X_GetKeyboardControl:
return "GetKeyboardControl";
case X_Bell:
return "Bell";
case X_ChangePointerControl:
return "ChangePointerControl";
case X_GetPointerControl:
return "GetPointerControl";
case X_SetScreenSaver:
return "SetScreenSaver";
case X_GetScreenSaver:
return "GetScreenSaver";
case X_ChangeHosts:
return "ChangeHosts";
case X_ListHosts:
return "ListHosts";
case X_SetAccessControl:
return "SetAccessControl";
case X_SetCloseDownMode:
return "SetCloseDownMode";
case X_KillClient:
return "KillClient";
case X_RotateProperties:
return "RotateProperties";
case X_ForceScreenSaver:
return "ForceScreenSaver";
case X_SetPointerMapping:
return "SetPointerMapping";
case X_GetPointerMapping:
return "GetPointerMapping";
case X_SetModifierMapping:
return "SetModifierMapping";
case X_GetModifierMapping:
return "GetModifierMapping";
case X_NoOperation:
return "NoOperation";
}
return "";
}
static const char *strLevel(int level)
{
switch (level)
{
case LOG_EMERG:
return "Emergency";
case LOG_ALERT:
return "Alert";
case LOG_CRIT:
return "Critical";
case LOG_ERR:
return "Error";
case LOG_WARNING:
return "Warning";
case LOG_NOTICE:
return "Notice";
case LOG_INFO:
return "Info";
case LOG_DEBUG:
return "Debug";
default:
return "";
}
}
Core::Core(bool useSyslog, bool minLogLevelSet, int minLogLevel, const QStringList &configFiles, bool multipleActionsBehaviourSet, MultipleActionsBehaviour multipleActionsBehaviour, QObject *parent)
: QThread(parent)
, LogTarget()
, mReady(false)
, mUseSyslog(useSyslog)
, mMinLogLevel(minLogLevel)
, mDisplay(nullptr)
, mInterClientCommunicationWindow(0)
, mServiceWatcher{new QDBusServiceWatcher{this}}
, mDaemonAdaptor(nullptr)
, mNativeAdaptor(nullptr)
, mLastId(0ull)
, mGrabbingShortcut(false)
, mMultipleActionsBehaviour(multipleActionsBehaviour)
, mAllowGrabLocks(false)
, mAllowGrabBaseSpecial(false)
, mAllowGrabMiscSpecial(true)
, mAllowGrabBaseKeypad(true)
, mAllowGrabMiscKeypad(true)
, mAllowGrabPrintable(false)
, mSaveAllowed(false)
, mShortcutGrabTimeout(new QTimer(this))
, mShortcutGrabRequested(false)
{
s_Core = this;
initBothPipeEnds(mX11ErrorPipe);
initBothPipeEnds(mX11RequestPipe);
initBothPipeEnds(mX11ResponsePipe);
try
{
error_t c_error;
openlog("lxqt-global-action-daemon", LOG_PID, LOG_USER);
connect(lxqtApp, &LXQt::Application::unixSignal, this, &Core::unixSignalHandler);
lxqtApp->listenToUnixSignals(QList<int>() << SIGTERM << SIGINT);
if (!QDBusConnection::sessionBus().registerService(QStringLiteral("org.lxqt.global_key_shortcuts")))
{
throw std::runtime_error(std::string("Cannot register service 'org.lxqt.global_key_shortcuts'"));
}
if ((c_error = createPipe(mX11ErrorPipe)))
{
throw std::runtime_error(std::string("Cannot create error signal pipe: ") + std::string(strerror(c_error)));
}
if ((c_error = createPipe(mX11RequestPipe)))
{
throw std::runtime_error(std::string("Cannot create X11 request pipe: ") + std::string(strerror(c_error)));
}
if ((c_error = createPipe(mX11ResponsePipe)))
{
throw std::runtime_error(std::string("Cannot create X11 response pipe: ") + std::string(strerror(c_error)));
}
start();
char signal;
error_t error = readAll(mX11ResponsePipe[STDIN_FILENO], &signal, sizeof(signal));
if (error > 0)
{
throw std::runtime_error(std::string("Cannot read X11 start signal: ") + std::string(strerror(c_error)));
}
if (error < 0)
{
throw std::runtime_error(std::string("Cannot read X11 start signal"));
}
if (signal)
{
throw std::runtime_error(std::string("Cannot start X11 thread"));
}
{
bool allowGrabLocksSet = false, allowGrabBaseSpecialSet = false, allowGrabMiscSpecialSet = false, allowGrabBaseKeypadSet = false, allowGrabMiscKeypadSet = false;
bool userConfigExists = false;
QStringList execList, interfaceList, pathList;
// use regular XDG hierarchy (implemented by QSettings) if no config file given on command line
QStringList configs(configFiles);
if (configs.isEmpty())
{
const auto locations = QStandardPaths::standardLocations(QStandardPaths::ConfigLocation);
for (const auto &location : locations)
configs << location + QLatin1String("/lxqt/globalkeyshortcuts.conf");
userConfigExists = QFile::exists(configs[0]); // user config has priority
}
size_t fm = configs.size();
for (size_t fi = 0; fi < fm; ++fi)
{
QSettings settings(configs[fi], QSettings::IniFormat, this);
QString iniValue;
if (!minLogLevelSet)
{
iniValue = settings.value(/* General/ */QStringLiteral("LogLevel")).toString();
if (!iniValue.isEmpty())
{
minLogLevelSet = true;
if (iniValue == QLatin1String("error"))
{
mMinLogLevel = LOG_ERR;
}
else if (iniValue == QLatin1String("warning"))
{
mMinLogLevel = LOG_WARNING;
}
else if (iniValue == QLatin1String("notice"))
{
mMinLogLevel = LOG_NOTICE;
}
else if (iniValue == QLatin1String("info"))
{
mMinLogLevel = LOG_INFO;
}
else if (iniValue == QLatin1String("debug"))
{
mMinLogLevel = LOG_DEBUG;
}
else
{
minLogLevelSet = false;
}
}
}
if (!multipleActionsBehaviourSet)
{
iniValue = settings.value(/* General/ */QStringLiteral("MultipleActionsBehaviour")).toString();
if (!iniValue.isEmpty())
{
multipleActionsBehaviourSet = true;
if (iniValue == firstStr)
{
mMultipleActionsBehaviour = MULTIPLE_ACTIONS_BEHAVIOUR_FIRST;
}
else if (iniValue == lastStr)
{
mMultipleActionsBehaviour = MULTIPLE_ACTIONS_BEHAVIOUR_LAST;
}
else if (iniValue == allStr)
{
mMultipleActionsBehaviour = MULTIPLE_ACTIONS_BEHAVIOUR_ALL;
}
else if (iniValue == noneStr)
{
mMultipleActionsBehaviour = MULTIPLE_ACTIONS_BEHAVIOUR_NONE;
}
else
{
multipleActionsBehaviourSet = false;
}
}
}
QVariant v;
if (!allowGrabLocksSet)
{
v = settings.value(/* General/ */QStringLiteral("AllowGrabLocks"), mAllowGrabLocks);
if (v.isValid())
{
mAllowGrabLocks = v.toBool();
allowGrabLocksSet = true;
}
}
if (!allowGrabBaseSpecialSet)
{
v = settings.value(/* General/ */QStringLiteral("AllowGrabBaseSpecial"), mAllowGrabBaseSpecial);
if (v.isValid())
{
mAllowGrabBaseSpecial = v.toBool();
allowGrabBaseSpecialSet = true;
}
}
if (!allowGrabMiscSpecialSet)
{
v = settings.value(/* General/ */QStringLiteral("AllowGrabMiscSpecial"), mAllowGrabMiscSpecial);
if (v.isValid())
{
mAllowGrabMiscSpecial = v.toBool();
allowGrabMiscSpecialSet = true;
}
}
if (!allowGrabBaseKeypadSet)
{
v = settings.value(/* General/ */QStringLiteral("AllowGrabBaseKeypad"), mAllowGrabBaseKeypad);
if (v.isValid())
{
mAllowGrabBaseKeypad = v.toBool();
allowGrabBaseKeypadSet = true;
}
}
if (!allowGrabMiscKeypadSet)
{
v = settings.value(/* General/ */QStringLiteral("AllowGrabMiscKeypad"), mAllowGrabMiscKeypad);
if (v.isValid())
{
mAllowGrabMiscKeypad = v.toBool();
allowGrabMiscKeypadSet = true;
}
}
// if the user config already exists, don't get global shortcuts
// because the user may have removed some of them
if(userConfigExists && fi > 0)
continue;
const auto sections = settings.childGroups();
for(const QString §ion : sections)
{
if (section != QLatin1String("General"))
{
settings.beginGroup(section);
QString shortcut = section;
int pos = shortcut.indexOf(QLatin1Char('.'));
if (pos != -1)
{
shortcut = shortcut.left(pos);
}
qulonglong id = 0ull;
bool enabled = settings.value(EnabledKey, true).toBool();
QString description = settings.value(CommentKey).toString();
if (settings.contains(ExecKey))
{
QStringList values = settings.value(ExecKey).toStringList();
QString str = shortcut + values.join(QString()) + description;
if (!execList.contains(str)) // don't add the same shortcut
{
id = registerCommandAction(shortcut, values[0], values.mid(1), description);
execList << str;
}
}
else
{
iniValue = settings.value(pathKey).toString();
if (!iniValue.isEmpty())
{
QString path = iniValue;
if (settings.contains(interfaceKey))
{
QString interface = settings.value(interfaceKey).toString();
iniValue = settings.value(serviceKey).toString();
if (!iniValue.isEmpty())
{
QString service = iniValue;
iniValue = settings.value(methodKey).toString();
if (!iniValue.isEmpty())
{
QString method = iniValue;
QString str = shortcut + service + path + interface + method + description;
if (!interfaceList.contains(str)) // don't add the same shortcut
{
id = registerMethodAction(shortcut, service, QDBusObjectPath(path), interface, method, description);
interfaceList << str;
}
}
}
}
else
{
QString str = shortcut + path + description;
if (!pathList.contains(str)) // don't add the same shortcut
{
id = registerClientAction(shortcut, QDBusObjectPath(path), description);
pathList << str;
}
}
}
}
if (id)
{
enableActionNonGuarded(id, enabled);
}
settings.endGroup();
}
}
}
log(LOG_DEBUG, "Config file: %s", qPrintable(configs[0]));
}
log(LOG_DEBUG, "MinLogLevel: %s", strLevel(mMinLogLevel));
switch (mMultipleActionsBehaviour)
{
case MULTIPLE_ACTIONS_BEHAVIOUR_FIRST:
log(LOG_DEBUG, "MultipleActionsBehaviour: first");
break;
case MULTIPLE_ACTIONS_BEHAVIOUR_LAST:
log(LOG_DEBUG, "MultipleActionsBehaviour: last");
break;
case MULTIPLE_ACTIONS_BEHAVIOUR_ALL:
log(LOG_DEBUG, "MultipleActionsBehaviour: all");
break;
case MULTIPLE_ACTIONS_BEHAVIOUR_NONE:
log(LOG_DEBUG, "MultipleActionsBehaviour: none");
break;
default:
;
}
log(LOG_DEBUG, "AllowGrabLocks: %s", mAllowGrabLocks ? "true" : "false");
log(LOG_DEBUG, "AllowGrabBaseSpecial: %s", mAllowGrabBaseSpecial ? "true" : "false");
log(LOG_DEBUG, "AllowGrabMiscSpecial: %s", mAllowGrabMiscSpecial ? "true" : "false");
log(LOG_DEBUG, "AllowGrabBaseKeypad: %s", mAllowGrabBaseKeypad ? "true" : "false");
log(LOG_DEBUG, "AllowGrabMiscKeypad: %s", mAllowGrabMiscKeypad ? "true" : "false");
mSaveAllowed = true;
saveConfig();
mServiceWatcher->setConnection(QDBusConnection::sessionBus());
mDaemonAdaptor = new DaemonAdaptor(this);
if (!QDBusConnection::sessionBus().registerObject(QStringLiteral("/daemon"), mDaemonAdaptor))
{
throw std::runtime_error(std::string("Cannot create daemon adaptor"));
}
mNativeAdaptor = new NativeAdaptor(this);
if (!QDBusConnection::sessionBus().registerObject(QStringLiteral("/native"), mNativeAdaptor))
{
throw std::runtime_error(std::string("Cannot create daemon native client adaptor"));
}
connect(mServiceWatcher, &QDBusServiceWatcher::serviceUnregistered, this, &Core::serviceDisappeared);
connect(mDaemonAdaptor, &DaemonAdaptor::onAddMethodAction, this, &Core::addMethodAction);
connect(mDaemonAdaptor, &DaemonAdaptor::onAddCommandAction, this, &Core::addCommandAction);
connect(mDaemonAdaptor, &DaemonAdaptor::onModifyActionDescription, this, &Core::modifyActionDescription);
connect(mDaemonAdaptor, &DaemonAdaptor::onModifyMethodAction, this, &Core::modifyMethodAction);
connect(mDaemonAdaptor, &DaemonAdaptor::onModifyCommandAction, this, &Core::modifyCommandAction);
connect(mDaemonAdaptor, &DaemonAdaptor::onEnableAction, this, &Core::enableAction);
connect(mDaemonAdaptor, &DaemonAdaptor::onIsActionEnabled, this, &Core::isActionEnabled);
connect(mDaemonAdaptor, &DaemonAdaptor::onGetClientActionSender, this, &Core::getClientActionSender);
connect(mDaemonAdaptor, &DaemonAdaptor::onChangeShortcut, this, &Core::changeShortcut);
connect(mDaemonAdaptor, &DaemonAdaptor::onSwapActions, this, &Core::swapActions);
connect(mDaemonAdaptor, &DaemonAdaptor::onRemoveAction, this, &Core::removeAction);
connect(mDaemonAdaptor, &DaemonAdaptor::onSetMultipleActionsBehaviour, this, &Core::setMultipleActionsBehaviour);
connect(mDaemonAdaptor, &DaemonAdaptor::onGetMultipleActionsBehaviour, this, &Core::getMultipleActionsBehaviour);
connect(mDaemonAdaptor, &DaemonAdaptor::onGetAllActionIds, this, &Core::getAllActionIds);
connect(mDaemonAdaptor, &DaemonAdaptor::onGetActionById, this, &Core::getActionById);
connect(mDaemonAdaptor, &DaemonAdaptor::onGetAllActions, this, &Core::getAllActions);
connect(mDaemonAdaptor, &DaemonAdaptor::onGetClientActionInfoById, this, &Core::getClientActionInfoById);
connect(mDaemonAdaptor, &DaemonAdaptor::onGetMethodActionInfoById, this, &Core::getMethodActionInfoById);
connect(mDaemonAdaptor, &DaemonAdaptor::onGetCommandActionInfoById, this, &Core::getCommandActionInfoById);
connect(mDaemonAdaptor, &DaemonAdaptor::onGrabShortcut, this, &Core::grabShortcut);
connect(mDaemonAdaptor, &DaemonAdaptor::onCancelShortcutGrab, this, &Core::cancelShortcutGrab);
connect(mDaemonAdaptor, &DaemonAdaptor::onQuit, qApp, &QCoreApplication::quit);
connect(mNativeAdaptor, &NativeAdaptor::onAddClientAction, this, &Core::addClientAction);
connect(mNativeAdaptor, &NativeAdaptor::onModifyClientAction, this, &Core::modifyClientAction);
connect(mNativeAdaptor, &NativeAdaptor::onEnableClientAction, this, &Core::enableClientAction);
connect(mNativeAdaptor, &NativeAdaptor::onIsClientActionEnabled, this, &Core::isClientActionEnabled);
connect(mNativeAdaptor, &NativeAdaptor::onChangeClientActionShortcut, this, &Core::changeClientActionShortcut);
connect(mNativeAdaptor, &NativeAdaptor::onRemoveClientAction, this, &Core::removeClientAction);
connect(mNativeAdaptor, &NativeAdaptor::onDeactivateClientAction, this, &Core::deactivateClientAction);
connect(mNativeAdaptor, &NativeAdaptor::onGrabShortcut, this, &Core::grabShortcut);
connect(mNativeAdaptor, &NativeAdaptor::onCancelShortcutGrab, this, &Core::cancelShortcutGrab);
mShortcutGrabTimeout->setSingleShot(true);
connect(this, &Core::onShortcutGrabbed, this, &Core::shortcutGrabbed, Qt::QueuedConnection);
connect(mShortcutGrabTimeout, &QTimer::timeout, this, &Core::shortcutGrabTimedout);
log(LOG_NOTICE, "Started");
mReady = true;
}
catch (const std::exception &err)
{
log(LOG_CRIT, "%s", err.what());
}
}
Core::~Core()
{
log(LOG_INFO, "Stopping");
closeBothPipeEnds(mX11ErrorPipe);
closeBothPipeEnds(mX11RequestPipe);
closeBothPipeEnds(mX11ResponsePipe);
mX11EventLoopActive = false;
wakeX11Thread();
wait();
delete mDaemonAdaptor;
ShortcutAndActionById::iterator lastShortcutAndActionById = mShortcutAndActionById.end();
for (ShortcutAndActionById::iterator shortcutAndActionById = mShortcutAndActionById.begin(); shortcutAndActionById != lastShortcutAndActionById; ++shortcutAndActionById)
{
delete shortcutAndActionById.value().second;
}
log(LOG_NOTICE, "Stopped");
closelog();
}
void Core::saveConfig()
{
if (!mSaveAllowed)
{
return;
}
QSettings settings(QStringLiteral("lxqt"), QStringLiteral("globalkeyshortcuts"));
QVariant windowSize = settings.value(QStringLiteral("WindowSize"));
settings.clear();
settings.setValue(QStringLiteral("WindowSize"), windowSize);
switch (mMultipleActionsBehaviour)
{
case MULTIPLE_ACTIONS_BEHAVIOUR_FIRST:
settings.setValue(/* General/ */QLatin1String("MultipleActionsBehaviour"), firstStr);
break;
case MULTIPLE_ACTIONS_BEHAVIOUR_LAST:
settings.setValue(/* General/ */QLatin1String("MultipleActionsBehaviour"), lastStr);
break;
case MULTIPLE_ACTIONS_BEHAVIOUR_ALL:
settings.setValue(/* General/ */QLatin1String("MultipleActionsBehaviour"), allStr);
break;
case MULTIPLE_ACTIONS_BEHAVIOUR_NONE:
settings.setValue(/* General/ */QLatin1String("MultipleActionsBehaviour"), noneStr);
break;
default:
;
}
settings.setValue(/* General/ */QLatin1String("AllowGrabLocks"), mAllowGrabLocks);
settings.setValue(/* General/ */QLatin1String("AllowGrabBaseSpecial"), mAllowGrabBaseSpecial);
settings.setValue(/* General/ */QLatin1String("AllowGrabMiscSpecial"), mAllowGrabMiscSpecial);
settings.setValue(/* General/ */QLatin1String("AllowGrabBaseKeypad"), mAllowGrabBaseKeypad);
settings.setValue(/* General/ */QLatin1String("AllowGrabMiscKeypad"), mAllowGrabMiscKeypad);
ShortcutAndActionById::const_iterator lastShortcutAndActionById = mShortcutAndActionById.constEnd();
for (ShortcutAndActionById::const_iterator shortcutAndActionById = mShortcutAndActionById.constBegin(); shortcutAndActionById != lastShortcutAndActionById; ++shortcutAndActionById)
{
const BaseAction *action = shortcutAndActionById.value().second;
QString section = shortcutAndActionById.value().first + QLatin1Char('.') + QString::number(shortcutAndActionById.key());
settings.beginGroup(section);
settings.setValue(EnabledKey, action->isEnabled());
settings.setValue(CommentKey, action->description());
if (!strcmp(action->type(), CommandAction::id()))
{
const CommandAction *commandAction = dynamic_cast<const CommandAction *>(action);
settings.setValue(ExecKey, QVariant(QStringList() << commandAction->command() += commandAction->args()));
}
else if (!strcmp(action->type(), MethodAction::id()))
{
const MethodAction *methodAction = dynamic_cast<const MethodAction *>(action);
settings.setValue(serviceKey, methodAction->service());
settings.setValue(pathKey, methodAction->path().path());
settings.setValue(interfaceKey, methodAction->interface());
settings.setValue(methodKey, methodAction->method());
}
else if (!strcmp(action->type(), ClientAction::id()))
{
const ClientAction *clientAction = dynamic_cast<const ClientAction *>(action);
settings.setValue(pathKey, clientAction->path().path());
}
settings.endGroup();
}
}
void Core::unixSignalHandler(int signalNumber)
{
log(LOG_INFO, "Signal #%d received", signalNumber);
qApp->quit();
}
void Core::log(int level, const char *format, ...) const
{
if (level > mMinLogLevel)
{
return;
}
va_list ap;
va_start(ap, format);
if (mUseSyslog)
{
vsyslog(LOG_MAKEPRI(LOG_USER, level), format, ap);
}
else
{
fprintf(stderr, "[%s] ", strLevel(level));
vfprintf(stderr, format, ap);
fprintf(stderr, "\n");
}
va_end(ap);
}
int Core::x11ErrorHandler(Display */*display*/, XErrorEvent *errorEvent)
{
if (error_t error = writeAll(mX11ErrorPipe[STDOUT_FILENO], errorEvent, sizeof(XErrorEvent)))
{
log(LOG_CRIT, "Cannot write to error signal pipe: %s", strerror(error));
qApp->quit();
return 0;
}
return 0;
}
bool Core::waitForX11Error(int level, uint timeout)
{
pollfd fds[1];
fds[0].fd = mX11ErrorPipe[STDIN_FILENO];
fds[0].events = POLLIN | POLLERR | POLLHUP;
if (poll(fds, 1, timeout) < 0)
{
return true;
}
bool result = false;
while (fds[0].revents & POLLIN)
{
XErrorEvent errorEvent;
if (error_t error = readAll(mX11ErrorPipe[STDIN_FILENO], &errorEvent, sizeof(errorEvent)))
{
log(LOG_CRIT, "Cannot read from error signal pipe: %s", strerror(error));
qApp->quit();
}
char errorString[1024];
XGetErrorText(errorEvent.display, errorEvent.error_code, errorString, 1023);
log(level, "X11 error: type: %d, serial: %lu, error_code: %d '%s', request_code: %d (%s), minor_code: %d, resourceid: %lu", errorEvent.type, errorEvent.serial, errorEvent.error_code, errorString, errorEvent.request_code, x11opcodeToString(errorEvent.request_code), errorEvent.minor_code, errorEvent.resourceid);
result = true;
if (poll(fds, 1, 0) < 0)
{
return true;
}
}
return result;
}
void Core::lockX11Error()
{
mX11ErrorMutex.lock();
waitForX11Error(false, 0);
}
bool Core::checkX11Error(int level, uint timeout)
{
// unsigned long serial = NextRequest(mDisplay);
// log(LOG_DEBUG, "X11 error: serial: %lu", serial);
bool result = waitForX11Error(level, timeout);
mX11ErrorMutex.unlock();
return result;
}
void Core::wakeX11Thread()
{
if (mInterClientCommunicationWindow)
{
XClientMessageEvent dummyEvent;
memset(&dummyEvent, 0, sizeof(dummyEvent));
dummyEvent.type = ClientMessage;
dummyEvent.window = mInterClientCommunicationWindow;
dummyEvent.format = 32;
lockX11Error();
XSendEvent(mDisplay, mInterClientCommunicationWindow, 0, 0, reinterpret_cast<XEvent *>(&dummyEvent));
checkX11Error();
XFlush(mDisplay);
}
}
void Core::run()
{
mX11EventLoopActive = true;
XInitThreads();
int (*oldx11ErrorHandler)(Display * display, XErrorEvent * errorEvent) = XSetErrorHandler(::x11ErrorHandler);
mDisplay = XOpenDisplay(nullptr);
// WARNING: After the following libx11 commit, making Xlib behave synchronously may cause the app
// to exit with code 1 at XPeekEvent():
// https://gitlab.freedesktop.org/xorg/lib/libx11/-/commit/93a050c3ad2d2264d3880db3791387b1a9bf2e9e
// The commit assumes that the event queue should be empty if another thread is blocking.
// This assumption is made for preventing a possible hang in X11, at the cost of making
// an app exit with code 1 when the queue isn't empty. Apparently, a synchronized behavior
// can create non-empty queues sometimes.
//XSynchronize(mDisplay, True);