56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
/*
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KWin - the KDE window manager
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This file is part of the KDE project.
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SPDX-FileCopyrightText: 2020 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "xwaylandwindow.h"
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#include "wayland/surface_interface.h"
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using namespace KWaylandServer;
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namespace KWin
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{
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XwaylandWindow::XwaylandWindow()
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{
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// The wayland surface is associated with the Xwayland window asynchronously.
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connect(this, &Window::surfaceChanged, this, &XwaylandWindow::associate);
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}
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void XwaylandWindow::associate()
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{
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if (surface()->isMapped()) {
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initialize();
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} else {
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// Queued connection because we want to mark the window ready for painting after
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// the associated surface item has processed the new surface state.
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connect(surface(), &SurfaceInterface::mapped, this, &XwaylandWindow::initialize, Qt::QueuedConnection);
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}
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}
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void XwaylandWindow::initialize()
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{
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if (!readyForPainting()) { // avoid "setReadyForPainting()" function calling overhead
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if (syncRequest().counter == XCB_NONE) { // cannot detect complete redraw, consider done now
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setReadyForPainting();
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setupWindowManagementInterface();
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}
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}
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}
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bool XwaylandWindow::wantsSyncCounter() const
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{
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// When the frame window is resized, the attached buffer will be destroyed by
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// Xwayland, causing unexpected invalid previous and current window pixmaps.
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// With the addition of multiple window buffers in Xwayland 1.21, X11 clients
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// are no longer able to destroy the buffer after it's been committed and not
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// released by the compositor yet.
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static const quint32 xwaylandVersion = xcb_get_setup(kwinApp()->x11Connection())->release_number;
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return xwaylandVersion >= 12100000;
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}
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} // namespace KWin
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