Implement support for pointer constraints

Summary:
There are two types of constraints supported:
1. Pointer confinement
2. Pointer locking

In the case of confinement the pointer is confined to a given region of
the surface. This is comparable to general operation where the pointer
is confined to the screen region.

In the second case the pointer gets locked. That means it cannot move at
all. No further position updates are provided, only relative motion
events can go to the application. There is a hint about cursor position
update on unlock which is not yet implemented in KWayland::Server, thus
also not in this change.

The implementation in KWin grants the requests for pointer constraints
when the pointer enters the constrained region, either by pointer
movement or by e.g. stacking order changes. There is no confirmation
from user required to enter that mode. But we want to show an OSD when
the pointer gets constrained, this is not yet implemented, though.

Breaking an active constraint is relatively easy. E.g. changing the
stacking order will break the constraint if another surface is under the
cursor. Also (in case of confinement) moving the pointer to an
overlapping window breaks the confinement. But as soon as one moves the
pointer back to the window a constraint might get honoured again.

To properly break there is a dedicated event filter. It listens for a
long press of the Escape key. If hold for 3sec the pointer constraint is
broken and not activated again till the pointer got moved out of the
window. Afterward when moving in the pointer might activate again.

The escape filter ensures that the key press is forwarded to the
application if it's a short press or if another key gets pressed during
the three seconds. If the three seconds way fires, the later escape
release is not sent to the application.

This basic interaction is also ensured through an added auto test.

This change implements T4605.

Test Plan: Added auto test and nested KWin Wayland with D3488

Reviewers: #kwin, #plasma_on_wayland

Subscribers: plasma-devel, kwin

Tags: #plasma_on_wayland, #kwin

Differential Revision: https://phabricator.kde.org/D3506
icc-effect-5.14.5
Martin Gräßlin 2016-11-25 07:17:43 +01:00
parent 2defd6bb64
commit 0c5ca405cc
10 changed files with 673 additions and 2 deletions

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@ -42,6 +42,7 @@ integrationTest(NAME testModiferOnlyShortcut SRCS modifier_only_shortcut_test.cp
integrationTest(NAME testTabBox SRCS tabbox_test.cpp)
integrationTest(NAME testGlobalShortcuts SRCS globalshortcuts_test.cpp)
integrationTest(NAME testWindowSelection SRCS window_selection_test.cpp)
integrationTest(NAME testPointerConstraints SRCS pointer_constraints_test.cpp)
if (XCB_ICCCM_FOUND)
integrationTest(NAME testMoveResize SRCS move_resize_window_test.cpp LIBS XCB::ICCCM)

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@ -33,6 +33,7 @@ class ConnectionThread;
class Compositor;
class PlasmaShell;
class PlasmaWindowManagement;
class PointerConstraints;
class Seat;
class ServerSideDecorationManager;
class Shell;
@ -78,7 +79,8 @@ enum class AdditionalWaylandInterface {
Seat = 1 << 0,
Decoration = 1 << 1,
PlasmaShell = 1 << 2,
WindowManagement = 1 << 3
WindowManagement = 1 << 3,
PointerConstraints = 1 << 4
};
Q_DECLARE_FLAGS(AdditionalWaylandInterfaces, AdditionalWaylandInterface)
/**
@ -106,6 +108,7 @@ KWayland::Client::Seat *waylandSeat();
KWayland::Client::ServerSideDecorationManager *waylandServerSideDecoration();
KWayland::Client::PlasmaShell *waylandPlasmaShell();
KWayland::Client::PlasmaWindowManagement *waylandWindowManagement();
KWayland::Client::PointerConstraints *waylandPointerConstraints();
bool waitForWaylandPointer();
bool waitForWaylandTouch();

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@ -0,0 +1,379 @@
/********************************************************************
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 "kwin_wayland_test.h"
#include "cursor.h"
#include "keyboard_input.h"
#include "platform.h"
#include "pointer_input.h"
#include "shell_client.h"
#include "screens.h"
#include "wayland_server.h"
#include "workspace.h"
#include <KWayland/Client/compositor.h>
#include <KWayland/Client/keyboard.h>
#include <KWayland/Client/pointer.h>
#include <KWayland/Client/pointerconstraints.h>
#include <KWayland/Client/region.h>
#include <KWayland/Client/shell.h>
#include <KWayland/Client/seat.h>
#include <KWayland/Client/shm_pool.h>
#include <KWayland/Client/surface.h>
#include <KWayland/Server/seat_interface.h>
#include <linux/input.h>
#include <functional>
using namespace KWin;
using namespace KWayland::Client;
typedef std::function<QPoint(const QRect&)> PointerFunc;
Q_DECLARE_METATYPE(PointerFunc)
static const QString s_socketName = QStringLiteral("wayland_test_kwin_pointer_constraints-0");
class TestPointerConstraints : public QObject
{
Q_OBJECT
private Q_SLOTS:
void initTestCase();
void init();
void cleanup();
void testConfinedPointer_data();
void testConfinedPointer();
void testLockedPointer_data();
void testLockedPointer();
void testBreakConstrainedPointer_data();
void testBreakConstrainedPointer();
};
void TestPointerConstraints::initTestCase()
{
qRegisterMetaType<PointerFunc>();
qRegisterMetaType<KWin::ShellClient*>();
qRegisterMetaType<KWin::AbstractClient*>();
QSignalSpy workspaceCreatedSpy(kwinApp(), &Application::workspaceCreated);
QVERIFY(workspaceCreatedSpy.isValid());
kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
QMetaObject::invokeMethod(kwinApp()->platform(), "setOutputCount", Qt::DirectConnection, Q_ARG(int, 2));
QVERIFY(waylandServer()->init(s_socketName.toLocal8Bit()));
kwinApp()->start();
QVERIFY(workspaceCreatedSpy.wait());
QCOMPARE(screens()->count(), 2);
QCOMPARE(screens()->geometry(0), QRect(0, 0, 1280, 1024));
QCOMPARE(screens()->geometry(1), QRect(1280, 0, 1280, 1024));
waylandServer()->initWorkspace();
}
void TestPointerConstraints::init()
{
QVERIFY(Test::setupWaylandConnection(s_socketName, Test::AdditionalWaylandInterface::Seat | Test::AdditionalWaylandInterface::PointerConstraints));
QVERIFY(Test::waitForWaylandPointer());
screens()->setCurrent(0);
KWin::Cursor::setPos(QPoint(1280, 512));
}
void TestPointerConstraints::cleanup()
{
Test::destroyWaylandConnection();
}
void TestPointerConstraints::testConfinedPointer_data()
{
QTest::addColumn<Test::ShellSurfaceType>("type");
QTest::addColumn<PointerFunc>("positionFunction");
QTest::addColumn<int>("xOffset");
QTest::addColumn<int>("yOffset");
PointerFunc bottomLeft = &QRect::bottomLeft;
PointerFunc bottomRight = &QRect::bottomRight;
PointerFunc topRight = &QRect::topRight;
PointerFunc topLeft = &QRect::topLeft;
QTest::newRow("wlShell - bottomLeft") << Test::ShellSurfaceType::WlShell << bottomLeft << -1 << 1;
QTest::newRow("wlShell - bottomRight") << Test::ShellSurfaceType::WlShell << bottomRight << 1 << 1;
QTest::newRow("wlShell - topLeft") << Test::ShellSurfaceType::WlShell << topLeft << -1 << -1;
QTest::newRow("wlShell - topRight") << Test::ShellSurfaceType::WlShell << topRight << 1 << -1;
QTest::newRow("XdgShellV5 - bottomLeft") << Test::ShellSurfaceType::XdgShellV5 << bottomLeft << -1 << 1;
QTest::newRow("XdgShellV5 - bottomRight") << Test::ShellSurfaceType::XdgShellV5 << bottomRight << 1 << 1;
QTest::newRow("XdgShellV5 - topLeft") << Test::ShellSurfaceType::XdgShellV5 << topLeft << -1 << -1;
QTest::newRow("XdgShellV5 - topRight") << Test::ShellSurfaceType::XdgShellV5 << topRight << 1 << -1;
}
void TestPointerConstraints::testConfinedPointer()
{
// this test sets up a Surface with a confined pointer
// simple interaction test to verify that the pointer gets confined
QScopedPointer<Surface> surface(Test::createSurface());
QFETCH(Test::ShellSurfaceType, type);
QScopedPointer<QObject> shellSurface(Test::createShellSurface(type, surface.data()));
QScopedPointer<Pointer> pointer(Test::waylandSeat()->createPointer());
QScopedPointer<ConfinedPointer> confinedPointer(Test::waylandPointerConstraints()->confinePointer(surface.data(), pointer.data(), nullptr, PointerConstraints::LifeTime::OneShot));
QSignalSpy confinedSpy(confinedPointer.data(), &ConfinedPointer::confined);
QVERIFY(confinedSpy.isValid());
QSignalSpy unconfinedSpy(confinedPointer.data(), &ConfinedPointer::unconfined);
QVERIFY(unconfinedSpy.isValid());
// now map the window
auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 100), Qt::blue);
QVERIFY(c);
if (c->geometry().topLeft() == QPoint(0, 0)) {
c->move(QPoint(1, 1));
}
QVERIFY(!c->geometry().contains(KWin::Cursor::pos()));
// now let's confine
QCOMPARE(input()->pointer()->isConstrained(), false);
KWin::Cursor::setPos(c->geometry().center());
QCOMPARE(input()->pointer()->isConstrained(), true);
QVERIFY(confinedSpy.wait());
// picking a position outside the window geometry should not move pointer
QSignalSpy pointerPositionChangedSpy(input(), &InputRedirection::globalPointerChanged);
QVERIFY(pointerPositionChangedSpy.isValid());
KWin::Cursor::setPos(QPoint(1280, 512));
QVERIFY(pointerPositionChangedSpy.isEmpty());
QCOMPARE(KWin::Cursor::pos(), c->geometry().center());
// TODO: test relative motion
QFETCH(PointerFunc, positionFunction);
const QPoint position = positionFunction(c->geometry());
KWin::Cursor::setPos(position);
QCOMPARE(pointerPositionChangedSpy.count(), 1);
QCOMPARE(KWin::Cursor::pos(), position);
// moving one to right should not be possible
QFETCH(int, xOffset);
KWin::Cursor::setPos(position + QPoint(xOffset, 0));
QCOMPARE(pointerPositionChangedSpy.count(), 1);
QCOMPARE(KWin::Cursor::pos(), position);
// moving one to bottom should not be possible
QFETCH(int, yOffset);
KWin::Cursor::setPos(position + QPoint(0, yOffset));
QCOMPARE(pointerPositionChangedSpy.count(), 1);
QCOMPARE(KWin::Cursor::pos(), position);
// let's break the constraint explicitly
input()->pointer()->breakPointerConstraints();
QCOMPARE(input()->pointer()->isConstrained(), false);
QVERIFY(unconfinedSpy.wait());
confinedPointer.reset(Test::waylandPointerConstraints()->confinePointer(surface.data(), pointer.data(), nullptr, PointerConstraints::LifeTime::Persistent));
QSignalSpy confinedSpy2(confinedPointer.data(), &ConfinedPointer::confined);
QVERIFY(confinedSpy2.isValid());
QSignalSpy unconfinedSpy2(confinedPointer.data(), &ConfinedPointer::unconfined);
QVERIFY(unconfinedSpy2.isValid());
// should get confined
QVERIFY(confinedSpy2.wait());
QCOMPARE(input()->pointer()->isConstrained(), true);
// now let's unconfine again, any pointer movement should confine again
input()->pointer()->breakPointerConstraints();
QCOMPARE(input()->pointer()->isConstrained(), false);
QVERIFY(unconfinedSpy2.wait());
KWin::Cursor::setPos(c->geometry().center());
QCOMPARE(KWin::Cursor::pos(), c->geometry().center());
QCOMPARE(input()->pointer()->isConstrained(), true);
QVERIFY(confinedSpy2.wait());
// let's use the other break constraint and block
input()->pointer()->breakPointerConstraints();
input()->pointer()->blockPointerConstraints();
QCOMPARE(input()->pointer()->isConstrained(), false);
KWin::Cursor::setPos(c->geometry().center() + QPoint(1, 1));
QCOMPARE(input()->pointer()->isConstrained(), false);
QVERIFY(!confinedSpy2.wait());
// now move outside and back in again, that should confine
KWin::Cursor::setPos(c->geometry().bottomRight() + QPoint(1, 1));
KWin::Cursor::setPos(c->geometry().center() + QPoint(1, 1));
QCOMPARE(input()->pointer()->isConstrained(), true);
QVERIFY(confinedSpy2.wait());
// create a second window and move it above our constrained window
QScopedPointer<Surface> surface2(Test::createSurface());
QScopedPointer<QObject> shellSurface2(Test::createShellSurface(type, surface2.data()));
auto c2 = Test::renderAndWaitForShown(surface2.data(), QSize(1280, 1024), Qt::blue);
QVERIFY(c2);
QVERIFY(unconfinedSpy2.wait());
// and unmapping the second window should confine again
shellSurface2.reset();
surface2.reset();
QVERIFY(confinedSpy2.wait());
// let's set a region which results in unconfined
auto r = Test::waylandCompositor()->createRegion(QRegion(0, 0, 1, 1));
confinedPointer->setRegion(r.get());
surface->commit(Surface::CommitFlag::None);
QVERIFY(unconfinedSpy2.wait());
QCOMPARE(input()->pointer()->isConstrained(), false);
// and set a full region again, that should confine
confinedPointer->setRegion(nullptr);
surface->commit(Surface::CommitFlag::None);
QVERIFY(confinedSpy2.wait());
QCOMPARE(input()->pointer()->isConstrained(), true);
// and now unmap
shellSurface.reset();
surface.reset();
QVERIFY(Test::waitForWindowDestroyed(c));
QCOMPARE(input()->pointer()->isConstrained(), false);
}
void TestPointerConstraints::testLockedPointer_data()
{
QTest::addColumn<Test::ShellSurfaceType>("type");
QTest::newRow("wlShell") << Test::ShellSurfaceType::WlShell;
QTest::newRow("xdgShellV5") << Test::ShellSurfaceType::XdgShellV5;
}
void TestPointerConstraints::testLockedPointer()
{
// this test sets up a Surface with a locked pointer
// simple interaction test to verify that the pointer gets locked
// the various ways to unlock are not tested as that's already verified by testConfinedPointer
QScopedPointer<Surface> surface(Test::createSurface());
QFETCH(Test::ShellSurfaceType, type);
QScopedPointer<QObject> shellSurface(Test::createShellSurface(type, surface.data()));
QScopedPointer<Pointer> pointer(Test::waylandSeat()->createPointer());
QScopedPointer<LockedPointer> lockedPointer(Test::waylandPointerConstraints()->lockPointer(surface.data(), pointer.data(), nullptr, PointerConstraints::LifeTime::OneShot));
QSignalSpy lockedSpy(lockedPointer.data(), &LockedPointer::locked);
QVERIFY(lockedSpy.isValid());
QSignalSpy unlockedSpy(lockedPointer.data(), &LockedPointer::unlocked);
QVERIFY(unlockedSpy.isValid());
// now map the window
auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 100), Qt::blue);
QVERIFY(c);
QVERIFY(!c->geometry().contains(KWin::Cursor::pos()));
// now let's lock
QCOMPARE(input()->pointer()->isConstrained(), false);
KWin::Cursor::setPos(c->geometry().center());
QCOMPARE(KWin::Cursor::pos(), c->geometry().center());
QCOMPARE(input()->pointer()->isConstrained(), true);
QVERIFY(lockedSpy.wait());
// try to move the pointer
// TODO: add relative pointer
KWin::Cursor::setPos(c->geometry().center() + QPoint(1, 1));
QCOMPARE(KWin::Cursor::pos(), c->geometry().center());
// now unlock again
input()->pointer()->breakPointerConstraints();
QCOMPARE(input()->pointer()->isConstrained(), false);
QVERIFY(unlockedSpy.wait());
// moving cursor should be allowed again
KWin::Cursor::setPos(c->geometry().center() + QPoint(1, 1));
QCOMPARE(KWin::Cursor::pos(), c->geometry().center() + QPoint(1, 1));
}
void TestPointerConstraints::testBreakConstrainedPointer_data()
{
QTest::addColumn<Test::ShellSurfaceType>("type");
QTest::newRow("wlShell") << Test::ShellSurfaceType::WlShell;
QTest::newRow("xdgShellV5") << Test::ShellSurfaceType::XdgShellV5;
}
void TestPointerConstraints::testBreakConstrainedPointer()
{
// this test verifies the breaking of Pointer constraints through the keyboard event filter
QScopedPointer<Surface> surface(Test::createSurface());
QFETCH(Test::ShellSurfaceType, type);
QScopedPointer<QObject> shellSurface(Test::createShellSurface(type, surface.data()));
QScopedPointer<Pointer> pointer(Test::waylandSeat()->createPointer());
QScopedPointer<Keyboard> keyboard(Test::waylandSeat()->createKeyboard());
QSignalSpy keyboardEnteredSpy(keyboard.data(), &Keyboard::entered);
QVERIFY(keyboardEnteredSpy.isValid());
QSignalSpy keyboardLeftSpy(keyboard.data(), &Keyboard::left);
QVERIFY(keyboardLeftSpy.isValid());
QSignalSpy keyChangedSpy(keyboard.data(), &Keyboard::keyChanged);
QVERIFY(keyChangedSpy.isValid());
QScopedPointer<LockedPointer> lockedPointer(Test::waylandPointerConstraints()->lockPointer(surface.data(), pointer.data(), nullptr, PointerConstraints::LifeTime::Persistent));
QSignalSpy lockedSpy(lockedPointer.data(), &LockedPointer::locked);
QVERIFY(lockedSpy.isValid());
QSignalSpy unlockedSpy(lockedPointer.data(), &LockedPointer::unlocked);
QVERIFY(unlockedSpy.isValid());
// now map the window
auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 100), Qt::blue);
QVERIFY(c);
QVERIFY(!c->geometry().contains(KWin::Cursor::pos()));
QVERIFY(keyboardEnteredSpy.wait());
// now let's lock
QCOMPARE(input()->pointer()->isConstrained(), false);
KWin::Cursor::setPos(c->geometry().center());
QCOMPARE(KWin::Cursor::pos(), c->geometry().center());
QCOMPARE(input()->pointer()->isConstrained(), true);
QVERIFY(lockedSpy.wait());
// now try to break
quint32 timestamp = 0;
kwinApp()->platform()->keyboardKeyPressed(KEY_ESC, timestamp++);
QVERIFY(keyboardLeftSpy.wait());
// and just waiting should break constrain
QVERIFY(unlockedSpy.wait());
QCOMPARE(input()->pointer()->isConstrained(), false);
// and should enter again
QTRY_COMPARE(keyboardEnteredSpy.count(), 2);
QCOMPARE(waylandServer()->seat()->focusedKeyboardSurface(), c->surface());
kwinApp()->platform()->keyboardKeyReleased(KEY_ESC, timestamp++);
QVERIFY(!keyChangedSpy.wait());
QVERIFY(keyChangedSpy.isEmpty());
// now lock again
// need to move out and in
KWin::Cursor::setPos(c->geometry().bottomRight() + QPoint(1, 1));
KWin::Cursor::setPos(c->geometry().center());
QCOMPARE(KWin::Cursor::pos(), c->geometry().center());
QCOMPARE(input()->pointer()->isConstrained(), true);
QVERIFY(lockedSpy.wait());
// and just do a key press/release on esc
kwinApp()->platform()->keyboardKeyPressed(KEY_ESC, timestamp++);
kwinApp()->platform()->keyboardKeyReleased(KEY_ESC, timestamp++);
QCOMPARE(input()->pointer()->isConstrained(), true);
QVERIFY(keyChangedSpy.wait());
QCOMPARE(keyChangedSpy.last().at(0).value<quint32>(), quint32(KEY_ESC));
// and another variant which won't break
kwinApp()->platform()->keyboardKeyPressed(KEY_ESC, timestamp++);
kwinApp()->platform()->keyboardKeyPressed(KEY_LEFTSHIFT, timestamp++);
kwinApp()->platform()->keyboardKeyReleased(KEY_LEFTSHIFT, timestamp++);
QCOMPARE(input()->pointer()->isConstrained(), true);
QVERIFY(keyChangedSpy.wait());
QCOMPARE(keyChangedSpy.last().at(0).value<quint32>(), quint32(KEY_LEFTSHIFT));
QVERIFY(!unlockedSpy.wait());
kwinApp()->platform()->keyboardKeyReleased(KEY_ESC, timestamp++);
QVERIFY(keyChangedSpy.wait());
QCOMPARE(keyChangedSpy.last().at(0).value<quint32>(), quint32(KEY_ESC));
// and now break for real
kwinApp()->platform()->keyboardKeyPressed(KEY_ESC, timestamp++);
QVERIFY(unlockedSpy.wait());
kwinApp()->platform()->keyboardKeyReleased(KEY_ESC, timestamp++);
}
WAYLANDTEST_MAIN(TestPointerConstraints)
#include "pointer_constraints_test.moc"

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@ -28,6 +28,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include <KWayland/Client/registry.h>
#include <KWayland/Client/plasmashell.h>
#include <KWayland/Client/plasmawindowmanagement.h>
#include <KWayland/Client/pointerconstraints.h>
#include <KWayland/Client/seat.h>
#include <KWayland/Client/server_decoration.h>
#include <KWayland/Client/shell.h>
@ -58,6 +59,7 @@ static struct {
Seat *seat = nullptr;
PlasmaShell *plasmaShell = nullptr;
PlasmaWindowManagement *windowManagement = nullptr;
PointerConstraints *pointerConstraints = nullptr;
QThread *thread = nullptr;
} s_waylandConnection;
@ -147,6 +149,13 @@ bool setupWaylandConnection(const QString &socketName, AdditionalWaylandInterfac
return false;
}
}
if (flags.testFlag(AdditionalWaylandInterface::PointerConstraints)) {
s_waylandConnection.pointerConstraints = registry.createPointerConstraints(registry.interface(Registry::Interface::PointerConstraintsUnstableV1).name,
registry.interface(Registry::Interface::PointerConstraintsUnstableV1).version);
if (!s_waylandConnection.pointerConstraints->isValid()) {
return false;
}
}
return true;
}
@ -165,6 +174,8 @@ void destroyWaylandConnection()
s_waylandConnection.decoration = nullptr;
delete s_waylandConnection.seat;
s_waylandConnection.seat = nullptr;
delete s_waylandConnection.pointerConstraints;
s_waylandConnection.pointerConstraints = nullptr;
delete s_waylandConnection.xdgShellV5;
s_waylandConnection.xdgShellV5 = nullptr;
delete s_waylandConnection.shell;
@ -227,6 +238,11 @@ PlasmaWindowManagement *waylandWindowManagement()
return s_waylandConnection.windowManagement;
}
PointerConstraints *waylandPointerConstraints()
{
return s_waylandConnection.pointerConstraints;
}
bool waitForWaylandPointer()
{
if (!s_waylandConnection.seat) {

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@ -394,6 +394,71 @@ private:
}
};
class PointerConstraintsFilter : public InputEventFilter {
public:
explicit PointerConstraintsFilter()
: InputEventFilter()
, m_timer(new QTimer)
{
QObject::connect(m_timer.data(), &QTimer::timeout,
[this] {
input()->pointer()->breakPointerConstraints();
input()->pointer()->blockPointerConstraints();
// TODO: show notification
waylandServer()->seat()->keyReleased(m_keyCode);
cancel();
}
);
}
bool keyEvent(QKeyEvent *event) override {
if (isActive()) {
if (event->type() == QEvent::KeyPress) {
// is that another key that gets pressed?
if (!event->isAutoRepeat() && event->key() != Qt::Key_Escape) {
cancel();
return false;
}
if (event->isAutoRepeat() && event->key() == Qt::Key_Escape) {
// filter out
return true;
}
} else {
cancel();
return false;
}
} else if (input()->pointer()->isConstrained()) {
if (event->type() == QEvent::KeyPress &&
event->key() == Qt::Key_Escape &&
input()->keyboard()->xkb()->modifiersRelevantForGlobalShortcuts() == Qt::KeyboardModifiers()) {
// TODO: don't hard code
m_timer->start(3000);
input()->keyboard()->update();
m_keyCode = event->nativeScanCode();
passToWaylandServer(event);
return true;
}
}
return false;
}
void cancel() {
if (!isActive()) {
return;
}
m_timer->stop();
input()->keyboard()->update();
}
bool isActive() const {
return m_timer->isActive();
}
private:
QScopedPointer<QTimer> m_timer;
int m_keyCode = 0;
};
class EffectsFilter : public InputEventFilter {
public:
bool pointerEvent(QMouseEvent *event, quint32 nativeButton) override {
@ -1062,6 +1127,7 @@ public:
if (event->buttons() == Qt::NoButton) {
// update pointer window only if no button is pressed
input()->pointer()->update();
input()->pointer()->enablePointerConstraints();
}
seat->setPointerPos(event->globalPos());
MouseEvent *e = static_cast<MouseEvent*>(event);
@ -1424,6 +1490,8 @@ void InputRedirection::setupInputFilters()
installInputEventFilter(new TerminateServerFilter);
installInputEventFilter(new DragAndDropInputFilter);
installInputEventFilter(new LockScreenFilter);
m_pointerConstraintsFilter = new PointerConstraintsFilter;
installInputEventFilter(m_pointerConstraintsFilter);
m_windowSelector = new WindowSelectorFilter;
installInputEventFilter(m_windowSelector);
}
@ -1790,6 +1858,11 @@ bool InputRedirection::isSelectingWindow() const
return m_windowSelector ? m_windowSelector->isActive() : false;
}
bool InputRedirection::isBreakingPointerConstraints() const
{
return m_pointerConstraintsFilter ? m_pointerConstraintsFilter->isActive() : false;
}
InputDeviceHandler::InputDeviceHandler(InputRedirection *input)
: QObject(input)
, m_input(input)

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@ -42,6 +42,7 @@ class GlobalShortcutsManager;
class Toplevel;
class InputEventFilter;
class KeyboardInputRedirection;
class PointerConstraintsFilter;
class PointerInputRedirection;
class TouchInputRedirection;
class WindowSelectorFilter;
@ -173,6 +174,8 @@ public:
void startInteractivePositionSelection(std::function<void(const QPoint &)> callback);
bool isSelectingWindow() const;
bool isBreakingPointerConstraints() const;
Q_SIGNALS:
/**
* @brief Emitted when the global pointer position changed
@ -231,6 +234,7 @@ private:
LibInput::Connection *m_libInput = nullptr;
WindowSelectorFilter *m_windowSelector = nullptr;
PointerConstraintsFilter *m_pointerConstraintsFilter = nullptr;
QVector<InputEventFilter*> m_filters;
KSharedConfigPtr m_inputConfig;

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@ -613,7 +613,7 @@ void KeyboardInputRedirection::update()
break;
} while (it != stacking.begin());
}
} else if (!input()->isSelectingWindow()) {
} else if (!input()->isSelectingWindow() && !input()->isBreakingPointerConstraints()) {
found = workspace()->activeClient();
}
if (found && found->surface()) {

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@ -35,6 +35,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include <KWayland/Server/buffer_interface.h>
#include <KWayland/Server/datadevice_interface.h>
#include <KWayland/Server/display.h>
#include <KWayland/Server/pointerconstraints_interface.h>
#include <KWayland/Server/seat_interface.h>
#include <KWayland/Server/surface_interface.h>
// screenlocker
@ -177,6 +178,8 @@ void PointerInputRedirection::init()
void PointerInputRedirection::updateOnStartMoveResize()
{
breakPointerConstraints(m_window ? m_window->surface() : nullptr);
disconnectPointerConstraintsConnection();
m_window.clear();
waylandServer()->seat()->setFocusedPointerSurface(nullptr);
}
@ -201,6 +204,8 @@ void PointerInputRedirection::updateToReset()
}
disconnect(m_windowGeometryConnection);
m_windowGeometryConnection = QMetaObject::Connection();
breakPointerConstraints(m_window->surface());
disconnectPointerConstraintsConnection();
m_window.clear();
}
waylandServer()->seat()->setFocusedPointerSurface(nullptr);
@ -451,6 +456,8 @@ void PointerInputRedirection::update()
}
disconnect(m_windowGeometryConnection);
m_windowGeometryConnection = QMetaObject::Connection();
breakPointerConstraints(oldWindow->surface());
disconnectPointerConstraintsConnection();
}
if (AbstractClient *c = qobject_cast<AbstractClient*>(t)) {
// only send enter if it wasn't on deco for the same client before
@ -483,6 +490,11 @@ void PointerInputRedirection::update()
seat->setFocusedPointerSurfaceTransformation(m_window.data()->inputTransformation());
}
);
m_constraintsConnection = connect(m_window->surface(), &KWayland::Server::SurfaceInterface::pointerConstraintsChanged,
this, &PointerInputRedirection::enablePointerConstraints);
// check whether a pointer confinement/lock fires
m_blockConstraint = false;
enablePointerConstraints();
} else {
m_window.clear();
warpXcbOnSurfaceLeft(nullptr);
@ -491,6 +503,120 @@ void PointerInputRedirection::update()
}
}
void PointerInputRedirection::breakPointerConstraints(KWayland::Server::SurfaceInterface *surface)
{
// cancel pointer constraints
if (surface) {
auto c = surface->confinedPointer();
if (c && c->isConfined()) {
c->setConfined(false);
}
auto l = surface->lockedPointer();
if (l && l->isLocked()) {
l->setLocked(false);
}
}
disconnectConfinedPointerRegionConnection();
m_confined = false;
m_locked = false;
}
void PointerInputRedirection::breakPointerConstraints()
{
breakPointerConstraints(m_window ? m_window->surface() : nullptr);
}
void PointerInputRedirection::disconnectConfinedPointerRegionConnection()
{
disconnect(m_confinedPointerRegionConnection);
m_confinedPointerRegionConnection = QMetaObject::Connection();
}
void PointerInputRedirection::disconnectPointerConstraintsConnection()
{
disconnect(m_constraintsConnection);
m_constraintsConnection = QMetaObject::Connection();
}
template <typename T>
static QRegion getConstraintRegion(Toplevel *t, T *constraint)
{
const QRegion windowShape = t->inputShape();
const QRegion windowRegion = windowShape.isEmpty() ? QRegion(0, 0, t->clientSize().width(), t->clientSize().height()) : windowShape;
const QRegion intersected = constraint->region().isEmpty() ? windowRegion : windowRegion.intersected(constraint->region());
return intersected.translated(t->pos() + t->clientPos());
}
void PointerInputRedirection::enablePointerConstraints()
{
if (m_window.isNull()) {
return;
}
const auto s = m_window->surface();
if (!s) {
return;
}
if (s != waylandServer()->seat()->focusedPointerSurface()) {
return;
}
if (!supportsWarping()) {
return;
}
if (m_blockConstraint) {
return;
}
const auto cf = s->confinedPointer();
if (cf) {
if (cf->isConfined()) {
return;
}
const QRegion r = getConstraintRegion(m_window.data(), cf.data());
if (r.contains(m_pos.toPoint())) {
cf->setConfined(true);
m_confined = true;
m_confinedPointerRegionConnection = connect(cf, &KWayland::Server::ConfinedPointerInterface::regionChanged, this,
[this] {
if (!m_window) {
return;
}
const auto s = m_window->surface();
if (!s) {
return;
}
const auto cf = s->confinedPointer();
if (!getConstraintRegion(m_window.data(), cf.data()).contains(m_pos.toPoint())) {
// pointer no longer in confined region, break the confinement
cf->setConfined(false);
m_confined = false;
} else {
if (!cf->isConfined()) {
cf->setConfined(true);
m_confined = true;
}
}
}
);
// TODO: show notification
return;
}
} else {
disconnectConfinedPointerRegionConnection();
}
const auto lock = s->lockedPointer();
if (lock) {
if (lock->isLocked()) {
return;
}
const QRegion r = getConstraintRegion(m_window.data(), lock.data());
if (r.contains(m_pos.toPoint())) {
lock->setLocked(true);
m_locked = true;
// TODO: show notification
// TODO: connect to region change - is it needed at all? If the pointer is locked it's always in the region
}
}
}
void PointerInputRedirection::warpXcbOnSurfaceLeft(KWayland::Server::SurfaceInterface *newSurface)
{
auto xc = waylandServer()->xWaylandConnection();
@ -519,8 +645,47 @@ void PointerInputRedirection::warpXcbOnSurfaceLeft(KWayland::Server::SurfaceInte
xcb_flush(connection());
}
QPointF PointerInputRedirection::applyPointerConfinement(const QPointF &pos) const
{
if (!m_window) {
return pos;
}
auto s = m_window->surface();
if (!s) {
return pos;
}
auto cf = s->confinedPointer();
if (!cf) {
return pos;
}
if (!cf->isConfined()) {
return pos;
}
const QRegion confinementRegion = getConstraintRegion(m_window.data(), cf.data());
if (confinementRegion.contains(pos.toPoint())) {
return pos;
}
QPointF p = pos;
// allow either x or y to pass
p = QPointF(m_pos.x(), pos.y());
if (confinementRegion.contains(p.toPoint())) {
return p;
}
p = QPointF(pos.x(), m_pos.y());
if (confinementRegion.contains(p.toPoint())) {
return p;
}
return m_pos;
}
void PointerInputRedirection::updatePosition(const QPointF &pos)
{
if (m_locked) {
// locked pointer should not move
return;
}
// verify that at least one screen contains the pointer position
QPointF p = pos;
if (!screenContainsPos(p)) {
@ -533,6 +698,15 @@ void PointerInputRedirection::updatePosition(const QPointF &pos)
}
}
}
p = applyPointerConfinement(p);
if (p == m_pos) {
// didn't change due to confinement
return;
}
// verify screen confinement
if (!screenContainsPos(p)) {
return;
}
m_pos = p;
emit m_input->globalPointerChanged(m_pos);
}

View File

@ -84,6 +84,16 @@ public:
void setWindowSelectionCursor(const QByteArray &shape);
void removeWindowSelectionCursor();
void enablePointerConstraints();
void breakPointerConstraints();
void blockPointerConstraints() {
m_blockConstraint = true;
}
bool isConstrained() const {
return m_confined || m_locked;
}
/**
* @internal
*/
@ -139,6 +149,10 @@ private:
void updatePosition(const QPointF &pos);
void updateButton(uint32_t button, InputRedirection::PointerButtonState state);
void warpXcbOnSurfaceLeft(KWayland::Server::SurfaceInterface *surface);
QPointF applyPointerConfinement(const QPointF &pos) const;
void disconnectConfinedPointerRegionConnection();
void disconnectPointerConstraintsConnection();
void breakPointerConstraints(KWayland::Server::SurfaceInterface *surface);
CursorImage *m_cursor;
bool m_inited = false;
bool m_supportsWarping;
@ -147,6 +161,11 @@ private:
Qt::MouseButtons m_qtButtons;
QMetaObject::Connection m_windowGeometryConnection;
QMetaObject::Connection m_internalWindowConnection;
QMetaObject::Connection m_constraintsConnection;
QMetaObject::Connection m_confinedPointerRegionConnection;
bool m_confined = false;
bool m_locked = false;
bool m_blockConstraint = false;
};
class CursorImage : public QObject

View File

@ -40,6 +40,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include <KWayland/Server/output_interface.h>
#include <KWayland/Server/plasmashell_interface.h>
#include <KWayland/Server/plasmawindowmanagement_interface.h>
#include <KWayland/Server/pointerconstraints_interface.h>
#include <KWayland/Server/pointergestures_interface.h>
#include <KWayland/Server/qtsurfaceextension_interface.h>
#include <KWayland/Server/seat_interface.h>
@ -186,6 +187,7 @@ bool WaylandServer::init(const QByteArray &socketName, InitalizationFlags flags)
m_seat = m_display->createSeat(m_display);
m_seat->create();
m_display->createPointerGestures(PointerGesturesInterfaceVersion::UnstableV1, m_display)->create();
m_display->createPointerConstraints(PointerConstraintsInterfaceVersion::UnstableV1, m_display)->create();
auto ddm = m_display->createDataDeviceManager(m_display);
ddm->create();
connect(ddm, &DataDeviceManagerInterface::dataDeviceCreated, this,