[autotest] Add a test for a KWin internal QWindow

The test creates a QRasterWindow which through KWin's internal QPA
is considered an internal window. In the test methods we simulate
various pointer events (enter/leave, press/release, wheel).

autotests/wayland/CMakeLists.txt

@@ -62,3 +62,12 @@ add_executable(testDecorationInput ${testDecorationInput_SRCS})
 target_link_libraries( testDecorationInput kwin Qt5::Test)
 add_test(kwin-testDecorationInput testDecorationInput)
 ecm_mark_as_test(testDecorationInput)
+
+########################################################
+# Internal Window test
+########################################################
+set( testInternalWindow_SRCS internal_window.cpp kwin_wayland_test.cpp )
+add_executable(testInternalWindow ${testInternalWindow_SRCS})
+target_link_libraries( testInternalWindow kwin Qt5::Test)
+add_test(kwin-testInternalWindow testInternalWindow)
+ecm_mark_as_test(testInternalWindow)

autotests/wayland/internal_window.cpp

@@ -0,0 +1,226 @@
+/********************************************************************
+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 "abstract_backend.h"
+#include "cursor.h"
+#include "shell_client.h"
+#include "screens.h"
+#include "wayland_server.h"
+#include "workspace.h"
+
+#include <QPainter>
+#include <QRasterWindow>
+
+#include <linux/input.h>
+
+namespace KWin
+{
+
+static const QString s_socketName = QStringLiteral("wayland_test_kwin_internal_window-0");
+
+class InternalWindowTest : public QObject
+{
+    Q_OBJECT
+private Q_SLOTS:
+    void initTestCase();
+    void init();
+    void testEnterLeave();
+    void testPointerPressRelease();
+    void testPointerAxis();
+};
+
+class HelperWindow : public QRasterWindow
+{
+    Q_OBJECT
+public:
+    HelperWindow();
+    ~HelperWindow();
+
+Q_SIGNALS:
+    void entered();
+    void left();
+    void mouseMoved(const QPoint &global);
+    void mousePressed();
+    void mouseReleased();
+    void wheel();
+
+protected:
+    void paintEvent(QPaintEvent *event) override;
+    bool event(QEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseReleaseEvent(QMouseEvent *event) override;
+    void wheelEvent(QWheelEvent *event) override;
+};
+
+HelperWindow::HelperWindow()
+    : QRasterWindow(nullptr)
+{
+}
+
+HelperWindow::~HelperWindow() = default;
+
+void HelperWindow::paintEvent(QPaintEvent *event)
+{
+    Q_UNUSED(event)
+    QPainter p(this);
+    p.fillRect(0, 0, width(), height(), Qt::red);
+}
+
+bool HelperWindow::event(QEvent *event)
+{
+    if (event->type() == QEvent::Enter) {
+        emit entered();
+    }
+    if (event->type() == QEvent::Leave) {
+        emit left();
+    }
+    return QRasterWindow::event(event);
+}
+
+void HelperWindow::mouseMoveEvent(QMouseEvent *event)
+{
+    emit mouseMoved(event->globalPos());
+}
+
+void HelperWindow::mousePressEvent(QMouseEvent *event)
+{
+    Q_UNUSED(event)
+    emit mousePressed();
+}
+
+void HelperWindow::mouseReleaseEvent(QMouseEvent *event)
+{
+    Q_UNUSED(event)
+    emit mouseReleased();
+}
+
+void HelperWindow::wheelEvent(QWheelEvent *event)
+{
+    Q_UNUSED(event)
+    emit wheel();
+}
+
+void InternalWindowTest::initTestCase()
+{
+    qRegisterMetaType<KWin::ShellClient*>();
+    qRegisterMetaType<KWin::AbstractClient*>();
+    QSignalSpy workspaceCreatedSpy(kwinApp(), &Application::workspaceCreated);
+    QVERIFY(workspaceCreatedSpy.isValid());
+    waylandServer()->backend()->setInitialWindowSize(QSize(1280, 1024));
+    QMetaObject::invokeMethod(waylandServer()->backend(), "setOutputCount", Qt::DirectConnection, Q_ARG(int, 2));
+    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 InternalWindowTest::init()
+{
+    Cursor::setPos(QPoint(1280, 512));
+}
+
+void InternalWindowTest::testEnterLeave()
+{
+    QSignalSpy clientAddedSpy(waylandServer(), &WaylandServer::shellClientAdded);
+    QVERIFY(clientAddedSpy.isValid());
+    HelperWindow win;
+    win.setGeometry(0, 0, 100, 100);
+    win.show();
+
+    QVERIFY(clientAddedSpy.wait());
+    QCOMPARE(clientAddedSpy.count(), 1);
+    QVERIFY(!workspace()->activeClient());
+    ShellClient *c = clientAddedSpy.first().first().value<ShellClient*>();
+    QVERIFY(c->isInternal());
+    QCOMPARE(c->geometry(), QRect(0, 0, 100, 100));
+
+    QSignalSpy enterSpy(&win, &HelperWindow::entered);
+    QVERIFY(enterSpy.isValid());
+    QSignalSpy leaveSpy(&win, &HelperWindow::left);
+    QVERIFY(leaveSpy.isValid());
+    QSignalSpy moveSpy(&win, &HelperWindow::mouseMoved);
+    QVERIFY(moveSpy.isValid());
+
+    quint32 timestamp = 1;
+    waylandServer()->backend()->pointerMotion(QPoint(50, 50), timestamp++);
+    QTRY_COMPARE(enterSpy.count(), 1);
+
+    waylandServer()->backend()->pointerMotion(QPoint(60, 50), timestamp++);
+    QTRY_COMPARE(moveSpy.count(), 1);
+    QCOMPARE(moveSpy.first().first().toPoint(), QPoint(60, 50));
+
+    waylandServer()->backend()->pointerMotion(QPoint(101, 50), timestamp++);
+    QTRY_COMPARE(leaveSpy.count(), 1);
+}
+
+void InternalWindowTest::testPointerPressRelease()
+{
+    QSignalSpy clientAddedSpy(waylandServer(), &WaylandServer::shellClientAdded);
+    QVERIFY(clientAddedSpy.isValid());
+    HelperWindow win;
+    win.setGeometry(0, 0, 100, 100);
+    win.show();
+    QSignalSpy pressSpy(&win, &HelperWindow::mousePressed);
+    QVERIFY(pressSpy.isValid());
+    QSignalSpy releaseSpy(&win, &HelperWindow::mouseReleased);
+    QVERIFY(releaseSpy.isValid());
+
+    QVERIFY(clientAddedSpy.wait());
+    QCOMPARE(clientAddedSpy.count(), 1);
+
+    quint32 timestamp = 1;
+    waylandServer()->backend()->pointerMotion(QPoint(50, 50), timestamp++);
+
+    waylandServer()->backend()->pointerButtonPressed(BTN_LEFT, timestamp++);
+    QTRY_COMPARE(pressSpy.count(), 1);
+    waylandServer()->backend()->pointerButtonReleased(BTN_LEFT, timestamp++);
+    QTRY_COMPARE(releaseSpy.count(), 1);
+}
+
+void InternalWindowTest::testPointerAxis()
+{
+    QSignalSpy clientAddedSpy(waylandServer(), &WaylandServer::shellClientAdded);
+    QVERIFY(clientAddedSpy.isValid());
+    HelperWindow win;
+    win.setGeometry(0, 0, 100, 100);
+    win.show();
+    QSignalSpy wheelSpy(&win, &HelperWindow::wheel);
+    QVERIFY(wheelSpy.isValid());
+    QVERIFY(clientAddedSpy.wait());
+    QCOMPARE(clientAddedSpy.count(), 1);
+
+    quint32 timestamp = 1;
+    waylandServer()->backend()->pointerMotion(QPoint(50, 50), timestamp++);
+
+    waylandServer()->backend()->pointerAxisVertical(5.0, timestamp++);
+    QTRY_COMPARE(wheelSpy.count(), 1);
+    waylandServer()->backend()->pointerAxisHorizontal(5.0, timestamp++);
+    QTRY_COMPARE(wheelSpy.count(), 2);
+}
+
+}
+
+WAYLANTEST_MAIN(KWin::InternalWindowTest)
+#include "internal_window.moc"