kwin/src/sm.cpp
Vlad Zahorodnii 93e0265e4e Move source code to src/ directory
Once in a while, we receive complaints from other fellow KDE developers
about the file organization of kwin. This change addresses some of those
complaints by moving all of source code in a separate directory, src/,
thus making the project structure more traditional. Things such as tests
are kept in their own toplevel directories.

This change may wreak havoc on merge requests that add new files to kwin,
but if a patch modifies an already existing file, git should be smart
enough to figure out that the file has been relocated.

We may potentially split the src/ directory further to make navigating
the source code easier, but hopefully this is good enough already.
2021-02-10 15:31:43 +00:00

388 lines
14 KiB
C++

/*
KWin - the KDE window manager
This file is part of the KDE project.
SPDX-FileCopyrightText: 1999, 2000 Matthias Ettrich <ettrich@kde.org>
SPDX-FileCopyrightText: 2003 Lubos Lunak <l.lunak@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "sm.h"
#include <unistd.h>
#include <cstdlib>
#include <pwd.h>
#include <kconfig.h>
#include "workspace.h"
#include "x11client.h"
#include <QDebug>
#include <QSessionManager>
#include <QDBusConnection>
#include "sessionadaptor.h"
namespace KWin
{
static KConfig *sessionConfig(QString id, QString key)
{
static KConfig *config = nullptr;
static QString lastId;
static QString lastKey;
static QString pattern = QString(QLatin1String("session/%1_%2_%3")).arg(qApp->applicationName());
if (id != lastId || key != lastKey) {
delete config;
config = nullptr;
}
lastId = id;
lastKey = key;
if (!config) {
config = new KConfig(pattern.arg(id).arg(key), KConfig::SimpleConfig);
}
return config;
}
static const char* const window_type_names[] = {
"Unknown", "Normal" , "Desktop", "Dock", "Toolbar", "Menu", "Dialog",
"Override", "TopMenu", "Utility", "Splash"
};
// change also the two functions below when adding new entries
static const char* windowTypeToTxt(NET::WindowType type)
{
if (type >= NET::Unknown && type <= NET::Splash)
return window_type_names[ type + 1 ]; // +1 (unknown==-1)
if (type == -2) // undefined (not really part of NET::WindowType)
return "Undefined";
qFatal("Unknown Window Type");
return nullptr;
}
static NET::WindowType txtToWindowType(const char* txt)
{
for (int i = NET::Unknown;
i <= NET::Splash;
++i)
if (qstrcmp(txt, window_type_names[ i + 1 ]) == 0) // +1
return static_cast< NET::WindowType >(i);
return static_cast< NET::WindowType >(-2); // undefined
}
/**
* Stores the current session in the config file
*
* @see loadSessionInfo
*/
void Workspace::storeSession(const QString &sessionName, SMSavePhase phase)
{
qCDebug(KWIN_CORE) << "storing session" << sessionName << "in phase" << phase;
KConfig *config = sessionConfig(sessionName, QString());
KConfigGroup cg(config, "Session");
int count = 0;
int active_client = -1;
for (auto it = clients.begin(); it != clients.end(); ++it) {
X11Client *c = (*it);
if (c->windowType() > NET::Splash) {
//window types outside this are not tooltips/menus/OSDs
//typically these will be unmanaged and not in this list anyway, but that is not enforced
continue;
}
QByteArray sessionId = c->sessionId();
QByteArray wmCommand = c->wmCommand();
if (sessionId.isEmpty())
// remember also applications that are not XSMP capable
// and use the obsolete WM_COMMAND / WM_SAVE_YOURSELF
if (wmCommand.isEmpty())
continue;
count++;
if (c->isActive())
active_client = count;
if (phase == SMSavePhase2 || phase == SMSavePhase2Full)
storeClient(cg, count, c);
}
if (phase == SMSavePhase0) {
// it would be much simpler to save these values to the config file,
// but both Qt and KDE treat phase1 and phase2 separately,
// which results in different sessionkey and different config file :(
session_active_client = active_client;
session_desktop = VirtualDesktopManager::self()->current();
} else if (phase == SMSavePhase2) {
cg.writeEntry("count", count);
cg.writeEntry("active", session_active_client);
cg.writeEntry("desktop", session_desktop);
} else { // SMSavePhase2Full
cg.writeEntry("count", count);
cg.writeEntry("active", session_active_client);
cg.writeEntry("desktop", VirtualDesktopManager::self()->current());
}
config->sync(); // it previously did some "revert to defaults" stuff for phase1 I think
}
void Workspace::storeClient(KConfigGroup &cg, int num, X11Client *c)
{
c->setSessionActivityOverride(false); //make sure we get the real values
QString n = QString::number(num);
cg.writeEntry(QLatin1String("sessionId") + n, c->sessionId().constData());
cg.writeEntry(QLatin1String("windowRole") + n, c->windowRole().constData());
cg.writeEntry(QLatin1String("wmCommand") + n, c->wmCommand().constData());
cg.writeEntry(QLatin1String("resourceName") + n, c->resourceName().constData());
cg.writeEntry(QLatin1String("resourceClass") + n, c->resourceClass().constData());
cg.writeEntry(QLatin1String("geometry") + n, QRect(c->calculateGravitation(true), c->clientSize())); // FRAME
cg.writeEntry(QLatin1String("restore") + n, c->geometryRestore());
cg.writeEntry(QLatin1String("fsrestore") + n, c->fullscreenGeometryRestore());
cg.writeEntry(QLatin1String("maximize") + n, (int) c->maximizeMode());
cg.writeEntry(QLatin1String("fullscreen") + n, (int) c->fullScreenMode());
cg.writeEntry(QLatin1String("desktop") + n, c->desktop());
// the config entry is called "iconified" for back. comp. reasons
// (kconf_update script for updating session files would be too complicated)
cg.writeEntry(QLatin1String("iconified") + n, c->isMinimized());
cg.writeEntry(QLatin1String("opacity") + n, c->opacity());
// the config entry is called "sticky" for back. comp. reasons
cg.writeEntry(QLatin1String("sticky") + n, c->isOnAllDesktops());
cg.writeEntry(QLatin1String("shaded") + n, c->isShade());
// the config entry is called "staysOnTop" for back. comp. reasons
cg.writeEntry(QLatin1String("staysOnTop") + n, c->keepAbove());
cg.writeEntry(QLatin1String("keepBelow") + n, c->keepBelow());
cg.writeEntry(QLatin1String("skipTaskbar") + n, c->originalSkipTaskbar());
cg.writeEntry(QLatin1String("skipPager") + n, c->skipPager());
cg.writeEntry(QLatin1String("skipSwitcher") + n, c->skipSwitcher());
// not really just set by user, but name kept for back. comp. reasons
cg.writeEntry(QLatin1String("userNoBorder") + n, c->userNoBorder());
cg.writeEntry(QLatin1String("windowType") + n, windowTypeToTxt(c->windowType()));
cg.writeEntry(QLatin1String("shortcut") + n, c->shortcut().toString());
cg.writeEntry(QLatin1String("stackingOrder") + n, unconstrained_stacking_order.indexOf(c));
cg.writeEntry(QLatin1String("activities") + n, c->activities());
}
void Workspace::storeSubSession(const QString &name, QSet<QByteArray> sessionIds)
{
//TODO clear it first
KConfigGroup cg(KSharedConfig::openConfig(), QLatin1String("SubSession: ") + name);
int count = 0;
int active_client = -1;
for (auto it = clients.begin(); it != clients.end(); ++it) {
X11Client *c = (*it);
if (c->windowType() > NET::Splash) {
continue;
}
QByteArray sessionId = c->sessionId();
QByteArray wmCommand = c->wmCommand();
if (sessionId.isEmpty())
// remember also applications that are not XSMP capable
// and use the obsolete WM_COMMAND / WM_SAVE_YOURSELF
if (wmCommand.isEmpty())
continue;
if (!sessionIds.contains(sessionId))
continue;
qCDebug(KWIN_CORE) << "storing" << sessionId;
count++;
if (c->isActive())
active_client = count;
storeClient(cg, count, c);
}
cg.writeEntry("count", count);
cg.writeEntry("active", active_client);
//cg.writeEntry( "desktop", currentDesktop());
}
/**
* Loads the session information from the config file.
*
* @see storeSession
*/
void Workspace::loadSessionInfo(const QString &sessionName)
{
session.clear();
KConfigGroup cg(sessionConfig(sessionName, QString()), "Session");
addSessionInfo(cg);
}
void Workspace::addSessionInfo(KConfigGroup &cg)
{
m_initialDesktop = cg.readEntry("desktop", 1);
int count = cg.readEntry("count", 0);
int active_client = cg.readEntry("active", 0);
for (int i = 1; i <= count; i++) {
QString n = QString::number(i);
SessionInfo* info = new SessionInfo;
session.append(info);
info->sessionId = cg.readEntry(QLatin1String("sessionId") + n, QString()).toLatin1();
info->windowRole = cg.readEntry(QLatin1String("windowRole") + n, QString()).toLatin1();
info->wmCommand = cg.readEntry(QLatin1String("wmCommand") + n, QString()).toLatin1();
info->resourceName = cg.readEntry(QLatin1String("resourceName") + n, QString()).toLatin1();
info->resourceClass = cg.readEntry(QLatin1String("resourceClass") + n, QString()).toLower().toLatin1();
info->geometry = cg.readEntry(QLatin1String("geometry") + n, QRect());
info->restore = cg.readEntry(QLatin1String("restore") + n, QRect());
info->fsrestore = cg.readEntry(QLatin1String("fsrestore") + n, QRect());
info->maximized = cg.readEntry(QLatin1String("maximize") + n, 0);
info->fullscreen = cg.readEntry(QLatin1String("fullscreen") + n, 0);
info->desktop = cg.readEntry(QLatin1String("desktop") + n, 0);
info->minimized = cg.readEntry(QLatin1String("iconified") + n, false);
info->opacity = cg.readEntry(QLatin1String("opacity") + n, 1.0);
info->onAllDesktops = cg.readEntry(QLatin1String("sticky") + n, false);
info->shaded = cg.readEntry(QLatin1String("shaded") + n, false);
info->keepAbove = cg.readEntry(QLatin1String("staysOnTop") + n, false);
info->keepBelow = cg.readEntry(QLatin1String("keepBelow") + n, false);
info->skipTaskbar = cg.readEntry(QLatin1String("skipTaskbar") + n, false);
info->skipPager = cg.readEntry(QLatin1String("skipPager") + n, false);
info->skipSwitcher = cg.readEntry(QLatin1String("skipSwitcher") + n, false);
info->noBorder = cg.readEntry(QLatin1String("userNoBorder") + n, false);
info->windowType = txtToWindowType(cg.readEntry(QLatin1String("windowType") + n, QString()).toLatin1().constData());
info->shortcut = cg.readEntry(QLatin1String("shortcut") + n, QString());
info->active = (active_client == i);
info->stackingOrder = cg.readEntry(QLatin1String("stackingOrder") + n, -1);
info->activities = cg.readEntry(QLatin1String("activities") + n, QStringList());
}
}
void Workspace::loadSubSessionInfo(const QString &name)
{
KConfigGroup cg(KSharedConfig::openConfig(), QLatin1String("SubSession: ") + name);
addSessionInfo(cg);
}
static bool sessionInfoWindowTypeMatch(X11Client *c, SessionInfo* info)
{
if (info->windowType == -2) {
// undefined (not really part of NET::WindowType)
return !c->isSpecialWindow();
}
return info->windowType == c->windowType();
}
/**
* Returns a SessionInfo for client \a c. The returned session
* info is removed from the storage. It's up to the caller to delete it.
*
* This function is called when a new window is mapped and must be managed.
* We try to find a matching entry in the session.
*
* May return 0 if there's no session info for the client.
*/
SessionInfo* Workspace::takeSessionInfo(X11Client *c)
{
SessionInfo *realInfo = nullptr;
QByteArray sessionId = c->sessionId();
QByteArray windowRole = c->windowRole();
QByteArray wmCommand = c->wmCommand();
QByteArray resourceName = c->resourceName();
QByteArray resourceClass = c->resourceClass();
// First search ``session''
if (! sessionId.isEmpty()) {
// look for a real session managed client (algorithm suggested by ICCCM)
foreach (SessionInfo * info, session) {
if (realInfo)
break;
if (info->sessionId == sessionId && sessionInfoWindowTypeMatch(c, info)) {
if (! windowRole.isEmpty()) {
if (info->windowRole == windowRole) {
realInfo = info;
session.removeAll(info);
}
} else {
if (info->windowRole.isEmpty()
&& info->resourceName == resourceName
&& info->resourceClass == resourceClass) {
realInfo = info;
session.removeAll(info);
}
}
}
}
} else {
// look for a sessioninfo with matching features.
foreach (SessionInfo * info, session) {
if (realInfo)
break;
if (info->resourceName == resourceName
&& info->resourceClass == resourceClass
&& sessionInfoWindowTypeMatch(c, info)) {
if (wmCommand.isEmpty() || info->wmCommand == wmCommand) {
realInfo = info;
session.removeAll(info);
}
}
}
}
return realInfo;
}
SessionManager::SessionManager(QObject *parent)
: QObject(parent)
{
new SessionAdaptor(this);
QDBusConnection::sessionBus().registerObject(QStringLiteral("/Session"), this);
}
SessionManager::~SessionManager()
{
}
SessionState SessionManager::state() const
{
return m_sessionState;
}
void SessionManager::setState(uint state)
{
switch (state) {
case 0:
setState(SessionState::Saving);
break;
case 1:
setState(SessionState::Quitting);
break;
default:
setState(SessionState::Normal);
}
}
// TODO should we rethink this now that we have dedicated start end end save methods?
void SessionManager::setState(SessionState state)
{
if (state == m_sessionState) {
return;
}
// If we're starting to save a session
if (state == SessionState::Saving) {
RuleBook::self()->setUpdatesDisabled(true);
}
// If we're ending a save session due to either completion or cancellation
if (m_sessionState == SessionState::Saving) {
RuleBook::self()->setUpdatesDisabled(false);
Workspace::self()->forEachClient([](X11Client *client) {
client->setSessionActivityOverride(false);
});
}
m_sessionState = state;
emit stateChanged();
}
void SessionManager::loadSession(const QString &name)
{
emit loadSessionRequested(name);
}
void SessionManager::aboutToSaveSession(const QString &name)
{
emit prepareSessionSaveRequested(name);
}
void SessionManager::finishSaveSession(const QString &name)
{
emit finishSessionSaveRequested(name);
}
void SessionManager::quit()
{
qApp->quit();
}
} // namespace