kwin/main.h

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#ifndef MAIN_H
#define MAIN_H
#include <kwinglobals.h>
#include <config-kwin.h>
#include <KSelectionWatcher>
#include <KSelectionOwner>
#include <KSharedConfig>
// Qt
#include <QApplication>
#include <QAbstractNativeEventFilter>
#include <QProcessEnvironment>
class KPluginMetaData;
class QCommandLineParser;
namespace KWin
{
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class Platform;
class XcbEventFilter : public QAbstractNativeEventFilter
{
public:
virtual bool nativeEventFilter(const QByteArray &eventType, void *message, long int *result) override;
};
class KWIN_EXPORT Application : public QApplication
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{
Q_OBJECT
Q_PROPERTY(quint32 x11Time READ x11Time WRITE setX11Time)
Q_PROPERTY(quint32 x11RootWindow READ x11RootWindow CONSTANT)
Q_PROPERTY(void *x11Connection READ x11Connection NOTIFY x11ConnectionChanged)
Q_PROPERTY(int x11ScreenNumber READ x11ScreenNumber CONSTANT)
Q_PROPERTY(KSharedConfigPtr config READ config WRITE setConfig)
Q_PROPERTY(KSharedConfigPtr kxkbConfig READ kxkbConfig WRITE setKxkbConfig)
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public:
/**
* @brief This enum provides the various operation modes of KWin depending on the available
* Windowing Systems at startup. For example whether KWin only talks to X11 or also to a Wayland
* Compositor.
*
*/
enum OperationMode {
/**
* @brief KWin uses only X11 for managing windows and compositing
*/
OperationModeX11,
/**
* @brief KWin uses X11 for managing windows, but renders to a Wayland compositor.
* Input is received from the Wayland compositor.
*/
OperationModeWaylandAndX11,
/**
* @brief KWin uses Wayland and controls a nested Xwayland server.
**/
OperationModeXwayland
};
virtual ~Application();
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void setConfigLock(bool lock);
KSharedConfigPtr config() const {
return m_config;
}
void setConfig(KSharedConfigPtr config) {
m_config = config;
}
KSharedConfigPtr kxkbConfig() const {
return m_kxkbConfig;
}
void setKxkbConfig(KSharedConfigPtr config) {
m_kxkbConfig = config;
}
void start();
/**
* @brief The operation mode used by KWin.
*
* @return OperationMode
*/
OperationMode operationMode() const;
void setOperationMode(OperationMode mode);
bool shouldUseWaylandForCompositing() const;
void setupTranslator();
void setupCommandLine(QCommandLineParser *parser);
void processCommandLine(QCommandLineParser *parser);
xcb_timestamp_t x11Time() const {
return m_x11Time;
}
void setX11Time(xcb_timestamp_t timestamp) {
if (timestamp > m_x11Time) {
m_x11Time = timestamp;
}
}
void updateX11Time(xcb_generic_event_t *event);
void createScreens();
static void setCrashCount(int count);
static bool wasCrash();
/**
* Creates the KAboutData object for the KWin instance and registers it as
* KAboutData::setApplicationData.
**/
static void createAboutData();
/**
* @returns the X11 Screen number. If not applicable it's set to @c -1.
**/
static int x11ScreenNumber();
/**
* Sets the X11 screen number of this KWin instance to @p screenNumber.
**/
static void setX11ScreenNumber(int screenNumber);
/**
* @returns whether this is a multi head setup on X11.
**/
static bool isX11MultiHead();
/**
* Sets whether this is a multi head setup on X11.
*/
static void setX11MultiHead(bool multiHead);
/**
* @returns the X11 root window.
**/
xcb_window_t x11RootWindow() const {
return m_rootWindow;
}
/**
* @returns the X11 xcb connection
**/
xcb_connection_t *x11Connection() const {
return m_connection;
}
#ifdef KWIN_BUILD_ACTIVITIES
bool usesKActivities() const {
return m_useKActivities;
}
void setUseKActivities(bool use) {
m_useKActivities = use;
}
#endif
virtual QProcessEnvironment processStartupEnvironment() const;
void initPlatform(const KPluginMetaData &plugin);
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Platform *platform() const {
return m_platform;
}
static void setupMalloc();
static void setupLocalizedString();
static bool usesLibinput();
static void setUseLibinput(bool use);
Q_SIGNALS:
void x11ConnectionChanged();
void x11ConnectionAboutToBeDestroyed();
void workspaceCreated();
void screensCreated();
void virtualTerminalCreated();
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protected:
Application(OperationMode mode, int &argc, char **argv);
virtual void performStartup() = 0;
void notifyKSplash();
void createInput();
void createWorkspace();
void createAtoms();
void createOptions();
void createCompositor();
void setupEventFilters();
void destroyWorkspace();
void destroyCompositor();
/**
* Inheriting classes should use this method to set the X11 root window
* before accessing any X11 specific code pathes.
**/
void setX11RootWindow(xcb_window_t root) {
m_rootWindow = root;
}
/**
* Inheriting classes should use this method to set the xcb connection
* before accessing any X11 specific code pathes.
**/
void setX11Connection(xcb_connection_t *c) {
m_connection = c;
emit x11ConnectionChanged();
}
void destroyAtoms();
protected:
QString m_originalSessionKey;
static int crashes;
private Q_SLOTS:
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void resetCrashesCount();
private:
QScopedPointer<XcbEventFilter> m_eventFilter;
bool m_configLock;
KSharedConfigPtr m_config;
KSharedConfigPtr m_kxkbConfig;
OperationMode m_operationMode;
xcb_timestamp_t m_x11Time = XCB_TIME_CURRENT_TIME;
xcb_window_t m_rootWindow = XCB_WINDOW_NONE;
xcb_connection_t *m_connection = nullptr;
#ifdef KWIN_BUILD_ACTIVITIES
bool m_useKActivities = true;
#endif
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Platform *m_platform = nullptr;
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};
inline static Application *kwinApp()
{
return static_cast<Application*>(QCoreApplication::instance());
}
} // namespace
#endif