This commit introduces AbstractLocker class, which can be subclassed to provide platform specific implementation of LockScreen, for example X11Locker and WaylandLocker. REVIEW: 125802wilder-5.14
Bhushan Shah
11 years ago
parent
d9328ef3c4
commit
5a0ab38613
7 changed files with 24 additions and 269 deletions
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/********************************************************************
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KSld - the KDE Screenlocker Daemon |
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This file is part of the KDE project. |
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Copyright (C) 2014 Martin Gräßlin <mgraesslin@kde.org> |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/ |
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// own
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#include "../lockwindow.h" |
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// Qt
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#include <QtTest/QtTest> |
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#include <QWindow> |
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#include <QX11Info> |
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// xcb
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#include <xcb/xcb.h> |
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template <typename T> using ScopedCPointer = QScopedPointer<T, QScopedPointerPodDeleter>; |
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class LockWindowTest : public QObject |
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{ |
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Q_OBJECT |
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private Q_SLOTS: |
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void testBlankScreen(); |
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}; |
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xcb_screen_t *defaultScreen() |
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{ |
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int screen = QX11Info::appScreen(); |
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for (xcb_screen_iterator_t it = xcb_setup_roots_iterator(xcb_get_setup(QX11Info::connection())); |
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it.rem; |
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--screen, xcb_screen_next(&it)) { |
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if (screen == 0) { |
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return it.data; |
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} |
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} |
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return nullptr; |
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} |
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bool isColored(const QColor color, const int x, const int y, const int width, const int height) |
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{ |
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xcb_connection_t *c = QX11Info::connection(); |
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const auto cookie = xcb_get_image(c, XCB_IMAGE_FORMAT_Z_PIXMAP, QX11Info::appRootWindow(), |
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x, y, width, height, ~0); |
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ScopedCPointer<xcb_get_image_reply_t> xImage(xcb_get_image_reply(c, cookie, nullptr)); |
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if (xImage.isNull()) { |
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return false; |
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} |
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// this operates on the assumption that X server default depth matches Qt's image format
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QImage image(xcb_get_image_data(xImage.data()), width, height, |
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xcb_get_image_data_length(xImage.data()) / height, QImage::Format_ARGB32_Premultiplied); |
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for (int i = 0; i < image.width(); i++) { |
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for (int j = 0; j < image.height(); j++) { |
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if (QColor(image.pixel(i, j)) != color) { |
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return false; |
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} |
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} |
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} |
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return true; |
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} |
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bool isBlack() |
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{ |
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xcb_screen_t *screen = defaultScreen(); |
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const int width = screen->width_in_pixels; |
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const int height = screen->height_in_pixels; |
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return isColored(Qt::black, 0, 0, width, height); |
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} |
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xcb_atom_t screenLockerAtom() |
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{ |
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const QByteArray atomName = QByteArrayLiteral("_KDE_SCREEN_LOCKER"); |
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xcb_connection_t *c = QX11Info::connection(); |
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const auto cookie = xcb_intern_atom(c, false, atomName.length(), atomName.constData()); |
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ScopedCPointer<xcb_intern_atom_reply_t> atom(xcb_intern_atom_reply(c, cookie, nullptr)); |
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if (atom.isNull()) { |
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return XCB_ATOM_NONE; |
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} |
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return atom->atom; |
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} |
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void LockWindowTest::testBlankScreen() |
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{ |
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// create and show a dummy window to ensure the background doesn't start as black
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QWidget dummy; |
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dummy.setWindowFlags(Qt::X11BypassWindowManagerHint); |
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QPalette p; |
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p.setColor(QPalette::Background, Qt::red); |
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dummy.setAutoFillBackground(true); |
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dummy.setPalette(p); |
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dummy.setGeometry(0, 0, 100, 100); |
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dummy.show(); |
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xcb_flush(QX11Info::connection()); |
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// Lets wait till it gets shown
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QTest::qWait(1000); |
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// Verify that red window is shown
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QVERIFY(isColored(Qt::red, 0, 0, 100, 100)); |
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ScreenLocker::X11Locker lockWindow; |
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lockWindow.showLockWindow(); |
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// the screen used to be blanked once the first lock window gets mapped, so let's create one
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QWindow fakeWindow; |
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fakeWindow.setFlags(Qt::X11BypassWindowManagerHint); |
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// it's on purpose outside the visual area
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fakeWindow.setGeometry(-1, -1, 1, 1); |
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fakeWindow.create(); |
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xcb_atom_t atom = screenLockerAtom(); |
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QVERIFY(atom != XCB_ATOM_NONE); |
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xcb_connection_t *c = QX11Info::connection(); |
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xcb_change_property(c, XCB_PROP_MODE_REPLACE, fakeWindow.winId(), atom, atom, 32, 0, nullptr); |
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xcb_flush(c); |
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fakeWindow.show(); |
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// give it time to be shown
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QTest::qWait(1000); |
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// now lets try to get a screen grab and verify it's not yet black
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QVERIFY(!isBlack()); |
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// nowadays we need to pass the window id to the lock window
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lockWindow.addAllowedWindow(fakeWindow.winId()); |
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// give it time to be shown
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QTest::qWait(1000); |
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// now lets try to get a screen grab and verify it's black
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QVERIFY(isBlack()); |
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dummy.hide(); |
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// destorying the fakeWindow should not remove the blanked screen
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fakeWindow.destroy(); |
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QTest::qWait(1000); |
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QVERIFY(isBlack()); |
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// let's create another window and try to raise it above the lockWindow
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// using a QWidget to get proper content which won't be black
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QWidget widgetWindow; |
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widgetWindow.setGeometry(10, 10, 100, 100); |
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QPalette p1; |
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p1.setColor(QPalette::Background, Qt::blue); |
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widgetWindow.setAutoFillBackground(true); |
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widgetWindow.setPalette(p1); |
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widgetWindow.show(); |
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const uint32_t values[] = { XCB_STACK_MODE_ABOVE }; |
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xcb_configure_window(c, widgetWindow.winId(), XCB_CONFIG_WINDOW_STACK_MODE, values); |
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xcb_flush(c); |
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QTest::qWait(1000); |
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QVERIFY(isBlack()); |
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lockWindow.hideLockWindow(); |
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} |
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QTEST_MAIN(LockWindowTest) |
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#include "lockwindowtest.moc" |
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