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Move X11Cursor into the x11standalone platform plugin 

At the same time the xinput2 integration is split out of X11Cursor
and made a standalone part of the platform plugin. XInput integration
is nowadays not only used by the cursor position polling, but also
for modifier only shortcuts.

By splitting it out the modifier shortcuts start to work also when
one doesn't have anything requesting a mouse position polling.

This also simplifies the conditional builds: xinput integration is
only included if we have support for it at compile time without having
to have many ifdefs in the cursor implementation. For the inclusion of
cursor in the kcmkwin this also removes all the ifdefs.

The key events are only requested if we have xinput 2.1. Otherwise we
would not get all raw events if the input device gets grabbed.

Reviewers: #kwin, #plasma_on_wayland

Subscribers: plasma-devel, kwin

Tags: #plasma_on_wayland, #kwin

Differential Revision: https://phabricator.kde.org/D2473
icc-effect-5.14.5
Martin Gräßlin 2016-08-16 15:31:14 +02:00
parent 03700500be
commit 2a8ab547e1
15 changed files with 514 additions and 320 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
CMakeLists.txt
View File

@ -511,10 +511,6 @@ set(kwin_XLIB_LIBS
${X11_SM_LIB}
)
if(X11_Xinput_FOUND)
set(kwin_XLIB_LIBS ${kwin_XLIB_LIBS} ${X11_Xinput_LIB})
endif()
set(kwin_XCB_LIBS
XCB::XCB
XCB::XFIXES
@ -527,7 +523,6 @@ set(kwin_XCB_LIBS
XCB::KEYSYMS
XCB::SHM
XCB::GLX
XCB::CURSOR
)
set(kwin_WAYLAND_LIBS

258
cursor.cpp
View File

@ -25,7 +25,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "keyboard_input.h"
#include "main.h"
#include "utils.h"
#include "x11eventfilter.h"
#include "xcbutils.h"
// KDE
#include <KConfig>
@ -38,16 +37,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include <QTimer>
// xcb
#include <xcb/xfixes.h>
#include <xcb/xcb_cursor.h>
// X11
#include <X11/Xlib.h>
#if HAVE_X11_XINPUT
#include <X11/extensions/XInput2.h>
#include <X11/extensions/XI2proto.h>
#else
#define XI_RawMotion 0
#endif
#include <fixx11h.h>
namespace KWin
{
@ -246,253 +235,6 @@ void Cursor::notifyCursorChanged(uint32_t serial)
emit cursorChanged(serial);
}
#ifndef KCMRULES
class XInputEventFilter : public X11EventFilter
{
public:
XInputEventFilter(X11Cursor *parent, int xi_opcode)
: X11EventFilter(XCB_GE_GENERIC, xi_opcode, QVector<int>{XI_RawMotion, XI_RawButtonPress, XI_RawButtonRelease, XI_RawKeyPress, XI_RawKeyRelease})
, m_x11Cursor(parent)
{}
virtual ~XInputEventFilter() = default;
bool event(xcb_generic_event_t *event) override {
xcb_ge_generic_event_t *ge = reinterpret_cast<xcb_ge_generic_event_t *>(event);
switch (ge->event_type) {
case XI_RawKeyPress:
input()->keyboard()->xkb()->updateKey(reinterpret_cast<xXIRawEvent*>(event)->detail - 8, InputRedirection::KeyboardKeyPressed);
break;
case XI_RawKeyRelease:
input()->keyboard()->xkb()->updateKey(reinterpret_cast<xXIRawEvent*>(event)->detail - 8, InputRedirection::KeyboardKeyReleased);
break;
default:
m_x11Cursor->schedulePoll();
break;
}
return false;
}
private:
X11Cursor *m_x11Cursor;
};
#endif
X11Cursor::X11Cursor(QObject *parent)
: Cursor(parent)
, m_timeStamp(XCB_TIME_CURRENT_TIME)
, m_buttonMask(0)
, m_resetTimeStampTimer(new QTimer(this))
, m_mousePollingTimer(new QTimer(this))
, m_hasXInput(false)
, m_xiOpcode(0)
, m_needsPoll(false)
{
initXInput();
m_resetTimeStampTimer->setSingleShot(true);
connect(m_resetTimeStampTimer, SIGNAL(timeout()), SLOT(resetTimeStamp()));
// TODO: How often do we really need to poll?
m_mousePollingTimer->setInterval(50);
connect(m_mousePollingTimer, SIGNAL(timeout()), SLOT(mousePolled()));
connect(this, &Cursor::themeChanged, this, [this] { m_cursors.clear(); });
}
X11Cursor::~X11Cursor()
{
}
void X11Cursor::initXInput()
{
#ifndef KCMRULES
#if HAVE_X11_XINPUT
if (qEnvironmentVariableIsSet("KWIN_NO_XI2")) {
return;
}
Display *dpy = display();
int xi_opcode, event, error;
// init XInput extension
if (!XQueryExtension(dpy, "XInputExtension", &xi_opcode, &event, &error)) {
return;
}
// verify that the XInput extension is at at least version 2.0
int major = 2, minor = 0;
int result = XIQueryVersion(dpy, &major, &minor);
if (result == BadImplementation) {
// Xinput 2.2 returns BadImplementation if checked against 2.0
major = 2;
minor = 2;
if (XIQueryVersion(dpy, &major, &minor) != Success) {
return;
}
} else if (result != Success) {
return;
}
m_hasXInput = true;
m_xiOpcode = xi_opcode;
input()->keyboard()->xkb()->reconfigure();
#endif
#endif
}
void X11Cursor::doSetPos()
{
const QPoint &pos = currentPos();
xcb_warp_pointer(connection(), XCB_WINDOW_NONE, rootWindow(), 0, 0, 0, 0, pos.x(), pos.y());
// call default implementation to emit signal
Cursor::doSetPos();
}
void X11Cursor::doGetPos()
{
if (m_timeStamp != XCB_TIME_CURRENT_TIME &&
m_timeStamp == xTime()) {
// time stamps did not change, no need to query again
return;
}
m_timeStamp = xTime();
Xcb::Pointer pointer(rootWindow());
if (pointer.isNull()) {
return;
}
m_buttonMask = pointer->mask;
updatePos(pointer->root_x, pointer->root_y);
m_resetTimeStampTimer->start(0);
}
void X11Cursor::resetTimeStamp()
{
m_timeStamp = XCB_TIME_CURRENT_TIME;
}
void X11Cursor::aboutToBlock()
{
if (m_needsPoll) {
mousePolled();
m_needsPoll = false;
}
}
void X11Cursor::doStartMousePolling()
{
if (m_hasXInput) {
#ifndef KCMRULES
#if HAVE_X11_XINPUT
m_xiEventFilter.reset(new XInputEventFilter(this, m_xiOpcode));
// this assumes KWin is the only one setting events on the root window
// given Qt's source code this seems to be true. If it breaks, we need to change
XIEventMask evmasks[1];
unsigned char mask1[XIMaskLen(XI_LASTEVENT)];
memset(mask1, 0, sizeof(mask1));
XISetMask(mask1, XI_RawMotion);
XISetMask(mask1, XI_RawButtonPress);
XISetMask(mask1, XI_RawButtonRelease);
XISetMask(mask1, XI_RawKeyPress);
XISetMask(mask1, XI_RawKeyRelease);
evmasks[0].deviceid = XIAllMasterDevices;
evmasks[0].mask_len = sizeof(mask1);
evmasks[0].mask = mask1;
XISelectEvents(display(), rootWindow(), evmasks, 1);
connect(qApp->eventDispatcher(), &QAbstractEventDispatcher::aboutToBlock, this, &X11Cursor::aboutToBlock);
#endif
#endif
} else {
m_mousePollingTimer->start();
}
}
void X11Cursor::doStopMousePolling()
{
if (m_hasXInput) {
#ifndef KCMRULES
#if HAVE_X11_XINPUT
m_xiEventFilter.reset();
XIEventMask evmasks[1];
unsigned char mask1[(XI_LASTEVENT + 7)/8];
memset(mask1, 0, sizeof(mask1));
evmasks[0].deviceid = XIAllMasterDevices;
evmasks[0].mask_len = sizeof(mask1);
evmasks[0].mask = mask1;
XISelectEvents(display(), rootWindow(), evmasks, 1);
disconnect(qApp->eventDispatcher(), &QAbstractEventDispatcher::aboutToBlock, this, &X11Cursor::aboutToBlock);
#endif
#endif
} else {
m_mousePollingTimer->stop();
}
}
void X11Cursor::doStartCursorTracking()
{
xcb_xfixes_select_cursor_input(connection(), rootWindow(), XCB_XFIXES_CURSOR_NOTIFY_MASK_DISPLAY_CURSOR);
}
void X11Cursor::doStopCursorTracking()
{
xcb_xfixes_select_cursor_input(connection(), rootWindow(), 0);
}
void X11Cursor::mousePolled()
{
static QPoint lastPos = currentPos();
static uint16_t lastMask = m_buttonMask;
doGetPos(); // Update if needed
if (lastPos != currentPos() || lastMask != m_buttonMask) {
emit mouseChanged(currentPos(), lastPos,
x11ToQtMouseButtons(m_buttonMask), x11ToQtMouseButtons(lastMask),
x11ToQtKeyboardModifiers(m_buttonMask), x11ToQtKeyboardModifiers(lastMask));
lastPos = currentPos();
lastMask = m_buttonMask;
}
}
xcb_cursor_t X11Cursor::getX11Cursor(Qt::CursorShape shape)
{
return getX11Cursor(cursorName(shape));
}
xcb_cursor_t X11Cursor::getX11Cursor(const QByteArray &name)
{
auto it = m_cursors.constFind(name);
if (it != m_cursors.constEnd()) {
return it.value();
}
return createCursor(name);
}
xcb_cursor_t X11Cursor::createCursor(const QByteArray &name)
{
if (name.isEmpty()) {
return XCB_CURSOR_NONE;
}
xcb_cursor_context_t *ctx;
if (xcb_cursor_context_new(connection(), defaultScreen(), &ctx) < 0) {
return XCB_CURSOR_NONE;
}
xcb_cursor_t cursor = xcb_cursor_load_cursor(ctx, name.constData());
if (cursor == XCB_CURSOR_NONE) {
const auto &names = cursorAlternativeNames(name);
for (auto cit = names.begin(); cit != names.end(); ++cit) {
cursor = xcb_cursor_load_cursor(ctx, (*cit).constData());
if (cursor != XCB_CURSOR_NONE) {
break;
}
}
}
if (cursor != XCB_CURSOR_NONE) {
m_cursors.insert(name, cursor);
}
xcb_cursor_context_free(ctx);
return cursor;
}
QVector<QByteArray> Cursor::cursorAlternativeNames(const QByteArray &name) const
{
static const QHash<QByteArray, QVector<QByteArray>> alternatives = {

49
cursor.h
View File

@ -33,8 +33,6 @@ class QTimer;
namespace KWin
{
class XInputEventFilter;
/**
* @short Replacement for QCursor.
*
@ -222,53 +220,6 @@ private:
KWIN_SINGLETON(Cursor)
};
class KWIN_EXPORT X11Cursor : public Cursor
{
Q_OBJECT
public:
X11Cursor(QObject *parent);
virtual ~X11Cursor();
void schedulePoll() {
m_needsPoll = true;
}
protected:
virtual xcb_cursor_t getX11Cursor(Qt::CursorShape shape);
xcb_cursor_t getX11Cursor(const QByteArray &name) override;
virtual void doSetPos();
virtual void doGetPos();
virtual void doStartMousePolling();
virtual void doStopMousePolling();
virtual void doStartCursorTracking();
virtual void doStopCursorTracking();
private Q_SLOTS:
/**
* Because of QTimer's and the impossibility to get events for all mouse
* movements (at least I haven't figured out how) the position needs
* to be also refetched after each return to the event loop.
*/
void resetTimeStamp();
void mousePolled();
void aboutToBlock();
private:
void initXInput();
xcb_cursor_t createCursor(const QByteArray &name);
QHash<QByteArray, xcb_cursor_t > m_cursors;
xcb_timestamp_t m_timeStamp;
uint16_t m_buttonMask;
QTimer *m_resetTimeStampTimer;
QTimer *m_mousePollingTimer;
bool m_hasXInput;
int m_xiOpcode;
bool m_needsPoll;
#ifndef KCMRULES
QScopedPointer<XInputEventFilter> m_xiEventFilter;
#endif
friend class Cursor;
};
/**
* @brief Implementation using the InputRedirection framework to get pointer positions.
*

3
kcmkwin/kwinrules/CMakeLists.txt
View File

@ -3,7 +3,8 @@ add_definitions(-DTRANSLATION_DOMAIN=\"kcmkwinrules\")
add_definitions(-DKCMRULES)
########### next target ###############
set (kwinrules_MOC_HDRS yesnobox.h ../../client_machine.h ../../cursor.h)
include_directories(../../)
set (kwinrules_MOC_HDRS yesnobox.h ../../client_machine.h ../../cursor.h ../../plugins/platforms/x11/standalone/x11cursor.h)
qt5_wrap_cpp(kwinrules_MOC_SRCS ${kwinrules_MOC_HDRS})
set(kwinrules_SRCS ruleswidget.cpp ruleslist.cpp kwinsrc.cpp detectwidget.cpp ${kwinrules_MOC_SRCS})

2
kcmkwin/kwinrules/detectwidget.cpp
View File

@ -17,7 +17,7 @@
*/
#include "detectwidget.h"
#include "../../cursor.h"
#include "../../plugins/platforms/x11/standalone/x11cursor.h"
#include <KLocalizedString>
#include <QDebug>

1
kcmkwin/kwinrules/kwinsrc.cpp
View File

@ -21,6 +21,7 @@
#include "ruleslist.h"
#include "../../cursor.cpp"
#include "../../plugins/platforms/x11/standalone/x11cursor.cpp"
#include "../../rules.cpp"
#include "../../placement.cpp"
#include "../../options.cpp"

2
keyboard_input.h
View File

@ -47,7 +47,7 @@ namespace LibInput
class Device;
}
class Xkb
class KWIN_EXPORT Xkb
{
public:
Xkb(InputRedirection *input);

10
plugins/platforms/x11/standalone/CMakeLists.txt
View File

@ -1,16 +1,24 @@
set(X11PLATFORM_SOURCES
edge.cpp
logging.cpp
x11cursor.cpp
x11_platform.cpp
screens_xrandr.cpp
)
if(X11_Xinput_FOUND)
set(X11PLATFORM_SOURCES ${X11PLATFORM_SOURCES} xinputintegration.cpp)
endif()
if(HAVE_EPOXY_GLX)
set(X11PLATFORM_SOURCES ${X11PLATFORM_SOURCES} glxbackend.cpp)
endif()
add_library(KWinX11Platform MODULE ${X11PLATFORM_SOURCES})
target_link_libraries(KWinX11Platform eglx11common kwin Qt5::X11Extras)
target_link_libraries(KWinX11Platform eglx11common kwin Qt5::X11Extras XCB::CURSOR)
if(X11_Xinput_FOUND)
target_link_libraries(KWinX11Platform ${X11_Xinput_LIB})
endif()
install(
TARGETS

30
plugins/platforms/x11/standalone/x11_platform.cpp
View File

@ -18,13 +18,18 @@ You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "x11_platform.h"
#include "cursor.h"
#include "x11cursor.h"
#include "edge.h"
#include <config-kwin.h>
#include <kwinconfig.h>
#if HAVE_EPOXY_GLX
#include "glxbackend.h"
#endif
#if HAVE_X11_XINPUT
#include "xinputintegration.h"
#endif
#include "eglonxbackend.h"
#include "keyboard_input.h"
#include "logging.h"
#include "screens_xrandr.h"
#include "options.h"
@ -41,6 +46,18 @@ namespace KWin
X11StandalonePlatform::X11StandalonePlatform(QObject *parent)
: Platform(parent)
{
#if HAVE_X11_XINPUT
if (!qEnvironmentVariableIsSet("KWIN_NO_XI2")) {
m_xinputIntegration = new XInputIntegration(this);
m_xinputIntegration->init();
if (!m_xinputIntegration->hasXinput()) {
delete m_xinputIntegration;
m_xinputIntegration = nullptr;
} else {
connect(kwinApp(), &Application::workspaceCreated, m_xinputIntegration, &XInputIntegration::startListening);
}
}
#endif
}
X11StandalonePlatform::~X11StandalonePlatform() = default;
@ -87,7 +104,16 @@ Edge *X11StandalonePlatform::createScreenEdge(ScreenEdges *edges)
void X11StandalonePlatform::createPlatformCursor(QObject *parent)
{
new X11Cursor(parent);
auto c = new X11Cursor(parent, m_xinputIntegration != nullptr);
#if HAVE_X11_XINPUT
if (m_xinputIntegration) {
m_xinputIntegration->setCursor(c);
// we know we have xkb already
auto xkb = input()->keyboard()->xkb();
m_xinputIntegration->setXkb(xkb);
xkb->reconfigure();
}
#endif
}
bool X11StandalonePlatform::requiresCompositing() const

3
plugins/platforms/x11/standalone/x11_platform.h
View File

@ -27,6 +27,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
namespace KWin
{
class XInputIntegration;
class KWIN_EXPORT X11StandalonePlatform : public Platform
{
@ -60,6 +61,8 @@ private:
**/
static bool hasGlx();
XInputIntegration *m_xinputIntegration = nullptr;
};
}

176
plugins/platforms/x11/standalone/x11cursor.cpp Normal file
View File

@ -0,0 +1,176 @@
/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2013 Martin Gräßlin <mgraesslin@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/>.
*********************************************************************/
#include "x11cursor.h"
#include "input.h"
#include "keyboard_input.h"
#include "utils.h"
#include "xcbutils.h"
#include <QAbstractEventDispatcher>
#include <QTimer>
#include <xcb/xcb_cursor.h>
namespace KWin
{
X11Cursor::X11Cursor(QObject *parent, bool xInputSupport)
: Cursor(parent)
, m_timeStamp(XCB_TIME_CURRENT_TIME)
, m_buttonMask(0)
, m_resetTimeStampTimer(new QTimer(this))
, m_mousePollingTimer(new QTimer(this))
, m_hasXInput(xInputSupport)
, m_needsPoll(false)
{
m_resetTimeStampTimer->setSingleShot(true);
connect(m_resetTimeStampTimer, SIGNAL(timeout()), SLOT(resetTimeStamp()));
// TODO: How often do we really need to poll?
m_mousePollingTimer->setInterval(50);
connect(m_mousePollingTimer, SIGNAL(timeout()), SLOT(mousePolled()));
connect(this, &Cursor::themeChanged, this, [this] { m_cursors.clear(); });
if (m_hasXInput) {
connect(qApp->eventDispatcher(), &QAbstractEventDispatcher::aboutToBlock, this, &X11Cursor::aboutToBlock);
}
}
X11Cursor::~X11Cursor()
{
}
void X11Cursor::doSetPos()
{
const QPoint &pos = currentPos();
xcb_warp_pointer(connection(), XCB_WINDOW_NONE, rootWindow(), 0, 0, 0, 0, pos.x(), pos.y());
// call default implementation to emit signal
Cursor::doSetPos();
}
void X11Cursor::doGetPos()
{
if (m_timeStamp != XCB_TIME_CURRENT_TIME &&
m_timeStamp == xTime()) {
// time stamps did not change, no need to query again
return;
}
m_timeStamp = xTime();
Xcb::Pointer pointer(rootWindow());
if (pointer.isNull()) {
return;
}
m_buttonMask = pointer->mask;
updatePos(pointer->root_x, pointer->root_y);
m_resetTimeStampTimer->start(0);
}
void X11Cursor::resetTimeStamp()
{
m_timeStamp = XCB_TIME_CURRENT_TIME;
}
void X11Cursor::aboutToBlock()
{
if (m_needsPoll) {
mousePolled();
m_needsPoll = false;
}
}
void X11Cursor::doStartMousePolling()
{
if (!m_hasXInput) {
m_mousePollingTimer->start();
}
}
void X11Cursor::doStopMousePolling()
{
if (!m_hasXInput) {
m_mousePollingTimer->stop();
}
}
void X11Cursor::doStartCursorTracking()
{
xcb_xfixes_select_cursor_input(connection(), rootWindow(), XCB_XFIXES_CURSOR_NOTIFY_MASK_DISPLAY_CURSOR);
}
void X11Cursor::doStopCursorTracking()
{
xcb_xfixes_select_cursor_input(connection(), rootWindow(), 0);
}
void X11Cursor::mousePolled()
{
static QPoint lastPos = currentPos();
static uint16_t lastMask = m_buttonMask;
doGetPos(); // Update if needed
if (lastPos != currentPos() || lastMask != m_buttonMask) {
emit mouseChanged(currentPos(), lastPos,
x11ToQtMouseButtons(m_buttonMask), x11ToQtMouseButtons(lastMask),
x11ToQtKeyboardModifiers(m_buttonMask), x11ToQtKeyboardModifiers(lastMask));
lastPos = currentPos();
lastMask = m_buttonMask;
}
}
xcb_cursor_t X11Cursor::getX11Cursor(Qt::CursorShape shape)
{
return getX11Cursor(cursorName(shape));
}
xcb_cursor_t X11Cursor::getX11Cursor(const QByteArray &name)
{
auto it = m_cursors.constFind(name);
if (it != m_cursors.constEnd()) {
return it.value();
}
return createCursor(name);
}
xcb_cursor_t X11Cursor::createCursor(const QByteArray &name)
{
if (name.isEmpty()) {
return XCB_CURSOR_NONE;
}
xcb_cursor_context_t *ctx;
if (xcb_cursor_context_new(connection(), defaultScreen(), &ctx) < 0) {
return XCB_CURSOR_NONE;
}
xcb_cursor_t cursor = xcb_cursor_load_cursor(ctx, name.constData());
if (cursor == XCB_CURSOR_NONE) {
const auto &names = cursorAlternativeNames(name);
for (auto cit = names.begin(); cit != names.end(); ++cit) {
cursor = xcb_cursor_load_cursor(ctx, (*cit).constData());
if (cursor != XCB_CURSOR_NONE) {
break;
}
}
}
if (cursor != XCB_CURSOR_NONE) {
m_cursors.insert(name, cursor);
}
xcb_cursor_context_free(ctx);
return cursor;
}
}

72
plugins/platforms/x11/standalone/x11cursor.h Normal file
View File

@ -0,0 +1,72 @@
/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2013 Martin Gräßlin <mgraesslin@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 KWIN_X11CURSOR_H
#define KWIN_X11CURSOR_H
#include "cursor.h"
namespace KWin
{
class KWIN_EXPORT X11Cursor : public Cursor
{
Q_OBJECT
public:
X11Cursor(QObject *parent, bool xInputSupport = false);
virtual ~X11Cursor();
void schedulePoll() {
m_needsPoll = true;
}
protected:
virtual xcb_cursor_t getX11Cursor(Qt::CursorShape shape);
xcb_cursor_t getX11Cursor(const QByteArray &name) override;
virtual void doSetPos();
virtual void doGetPos();
virtual void doStartMousePolling();
virtual void doStopMousePolling();
virtual void doStartCursorTracking();
virtual void doStopCursorTracking();
private Q_SLOTS:
/**
* Because of QTimer's and the impossibility to get events for all mouse
* movements (at least I haven't figured out how) the position needs
* to be also refetched after each return to the event loop.
*/
void resetTimeStamp();
void mousePolled();
void aboutToBlock();
private:
xcb_cursor_t createCursor(const QByteArray &name);
QHash<QByteArray, xcb_cursor_t > m_cursors;
xcb_timestamp_t m_timeStamp;
uint16_t m_buttonMask;
QTimer *m_resetTimeStampTimer;
QTimer *m_mousePollingTimer;
bool m_hasXInput;
bool m_needsPoll;
friend class Cursor;
};
}
#endif

154
plugins/platforms/x11/standalone/xinputintegration.cpp Normal file
View File

@ -0,0 +1,154 @@
/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2016 Martin Gräßlin <mgraesslin@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/>.
*********************************************************************/
#include "xinputintegration.h"
#include "logging.h"
#include "x11cursor.h"
#include "keyboard_input.h"
#include "x11eventfilter.h"
#include <kwinglobals.h>
#include <X11/extensions/XInput2.h>
#include <X11/extensions/XI2proto.h>
namespace KWin
{
class XInputEventFilter : public X11EventFilter
{
public:
XInputEventFilter(int xi_opcode)
: X11EventFilter(XCB_GE_GENERIC, xi_opcode, QVector<int>{XI_RawMotion, XI_RawButtonPress, XI_RawButtonRelease, XI_RawKeyPress, XI_RawKeyRelease})
{}
virtual ~XInputEventFilter() = default;
bool event(xcb_generic_event_t *event) override {
xcb_ge_generic_event_t *ge = reinterpret_cast<xcb_ge_generic_event_t *>(event);
switch (ge->event_type) {
case XI_RawKeyPress:
if (m_xkb) {
m_xkb->updateKey(reinterpret_cast<xXIRawEvent*>(event)->detail - 8, InputRedirection::KeyboardKeyPressed);
}
break;
case XI_RawKeyRelease:
if (m_xkb) {
m_xkb->updateKey(reinterpret_cast<xXIRawEvent*>(event)->detail - 8, InputRedirection::KeyboardKeyReleased);
}
break;
default:
if (m_x11Cursor) {
m_x11Cursor->schedulePoll();
}
break;
}
return false;
}
void setCursor(const QPointer<X11Cursor> &cursor) {
m_x11Cursor = cursor;
}
void setXkb(Xkb *xkb) {
m_xkb = xkb;
}
private:
QPointer<X11Cursor> m_x11Cursor;
// TODO: QPointer
Xkb *m_xkb = nullptr;
};
XInputIntegration::XInputIntegration(QObject *parent)
: QObject(parent)
{
}
XInputIntegration::~XInputIntegration() = default;
void XInputIntegration::init()
{
Display *dpy = display();
int xi_opcode, event, error;
// init XInput extension
if (!XQueryExtension(dpy, "XInputExtension", &xi_opcode, &event, &error)) {
qCDebug(KWIN_X11STANDALONE) << "XInputExtension not present";
return;
}
// verify that the XInput extension is at at least version 2.0
int major = 2, minor = 0;
int result = XIQueryVersion(dpy, &major, &minor);
if (result == BadImplementation) {
// Xinput 2.2 returns BadImplementation if checked against 2.0
major = 2;
minor = 2;
if (XIQueryVersion(dpy, &major, &minor) != Success) {
qCDebug(KWIN_X11STANDALONE) << "Failed to init XInput";
return;
}
} else if (result != Success) {
qCDebug(KWIN_X11STANDALONE) << "Failed to init XInput";
return;
}
m_hasXInput = true;
m_xiOpcode = xi_opcode;
m_majorVersion = major;
m_minorVersion = minor;
qCDebug(KWIN_X11STANDALONE) << "Has XInput support" << m_majorVersion << "." << m_minorVersion;
}
void XInputIntegration::setCursor(X11Cursor *cursor)
{
m_x11Cursor = QPointer<X11Cursor>(cursor);
}
void XInputIntegration::setXkb(Xkb *xkb)
{
m_xkb = xkb;
}
void XInputIntegration::startListening()
{
// this assumes KWin is the only one setting events on the root window
// given Qt's source code this seems to be true. If it breaks, we need to change
XIEventMask evmasks[1];
unsigned char mask1[XIMaskLen(XI_LASTEVENT)];
memset(mask1, 0, sizeof(mask1));
XISetMask(mask1, XI_RawMotion);
XISetMask(mask1, XI_RawButtonPress);
XISetMask(mask1, XI_RawButtonRelease);
if (m_majorVersion >= 2 && m_minorVersion >= 1) {
// we need to listen to all events, which is only available with XInput 2.1
XISetMask(mask1, XI_RawKeyPress);
XISetMask(mask1, XI_RawKeyRelease);
}
evmasks[0].deviceid = XIAllMasterDevices;
evmasks[0].mask_len = sizeof(mask1);
evmasks[0].mask = mask1;
XISelectEvents(display(), rootWindow(), evmasks, 1);
m_xiEventFilter.reset(new XInputEventFilter(m_xiOpcode));
m_xiEventFilter->setCursor(m_x11Cursor);
m_xiEventFilter->setXkb(m_xkb);
}
}

65
plugins/platforms/x11/standalone/xinputintegration.h Normal file
View File

@ -0,0 +1,65 @@
/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2016 Martin Gräßlin <mgraesslin@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 KWIN_XINPUTINTEGRATION_H
#define KWIN_XINPUTINTEGRATION_H
#include <QObject>
#include <QPointer>
#include <QScopedPointer>
namespace KWin
{
class XInputEventFilter;
class X11Cursor;
class Xkb;
class XInputIntegration : public QObject
{
Q_OBJECT
public:
explicit XInputIntegration(QObject *parent);
virtual ~XInputIntegration();
void init();
void startListening();
bool hasXinput() const {
return m_hasXInput;
}
void setCursor(X11Cursor *cursor);
void setXkb(Xkb *xkb);
private:
bool m_hasXInput = false;
int m_xiOpcode = 0;
int m_majorVersion = 0;
int m_minorVersion = 0;
QPointer<X11Cursor> m_x11Cursor;
// TODO: QPointer
Xkb *m_xkb = nullptr;
QScopedPointer<XInputEventFilter> m_xiEventFilter;
};
}
#endif

4
utils.h
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@ -179,8 +179,8 @@ public:
int qtToX11Button(Qt::MouseButton button);
Qt::MouseButton x11ToQtMouseButton(int button);
int qtToX11State(Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers);
Qt::MouseButtons x11ToQtMouseButtons(int state);
Qt::KeyboardModifiers x11ToQtKeyboardModifiers(int state);
Qt::MouseButtons KWIN_EXPORT x11ToQtMouseButtons(int state);
Qt::KeyboardModifiers KWIN_EXPORT x11ToQtKeyboardModifiers(int state);
void checkNonExistentClients();