115 lines
4 KiB
C++
115 lines
4 KiB
C++
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/********************************************************************
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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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Copyright (C) 2006 Lubos Lunak <l.lunak@kde.org>
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Copyright (C) 2010, 2011, 2017 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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#include "effects_x11.h"
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#include "effects_mouse_interception_x11_filter.h"
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#include "cursor.h"
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#include "screenedge.h"
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#include "screens.h"
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#include "utils.h"
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#include "workspace.h"
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#include <QDesktopWidget>
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namespace KWin
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{
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EffectsHandlerImplX11::EffectsHandlerImplX11(Compositor *compositor, Scene *scene)
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: EffectsHandlerImpl(compositor, scene)
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{
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connect(this, &EffectsHandlerImpl::screenGeometryChanged, this,
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[this] (const QSize &size) {
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if (m_mouseInterceptionWindow.isValid()) {
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m_mouseInterceptionWindow.setGeometry(QRect(0, 0, size.width(), size.height()));
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}
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}
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);
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}
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EffectsHandlerImplX11::~EffectsHandlerImplX11() = default;
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bool EffectsHandlerImplX11::doGrabKeyboard()
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{
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bool ret = grabXKeyboard();
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if (!ret)
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return false;
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// Workaround for Qt 5.9 regression introduced with 2b34aefcf02f09253473b096eb4faffd3e62b5f4
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// we no longer get any events for the root window, one needs to call winId() on the desktop window
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// TODO: change effects event handling to create the appropriate QKeyEvent without relying on Qt
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// as it's done already in the Wayland case.
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qApp->desktop()->winId();
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return ret;
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}
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void EffectsHandlerImplX11::doUngrabKeyboard()
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{
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ungrabXKeyboard();
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}
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void EffectsHandlerImplX11::doStartMouseInterception(Qt::CursorShape shape)
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{
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// NOTE: it is intended to not perform an XPointerGrab on X11. See documentation in kwineffects.h
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// The mouse grab is implemented by using a full screen input only window
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if (!m_mouseInterceptionWindow.isValid()) {
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const QSize &s = screens()->size();
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const QRect geo(0, 0, s.width(), s.height());
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const uint32_t mask = XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK;
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const uint32_t values[] = {
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true,
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XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION
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};
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m_mouseInterceptionWindow.reset(Xcb::createInputWindow(geo, mask, values));
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defineCursor(shape);
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} else {
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defineCursor(shape);
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}
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m_mouseInterceptionWindow.map();
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m_mouseInterceptionWindow.raise();
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m_x11MouseInterception = std::make_unique<EffectsMouseInterceptionX11Filter>(m_mouseInterceptionWindow, this);
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// Raise electric border windows above the input windows
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// so they can still be triggered.
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ScreenEdges::self()->ensureOnTop();
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}
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void EffectsHandlerImplX11::doStopMouseInterception()
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{
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m_mouseInterceptionWindow.unmap();
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m_x11MouseInterception.reset();
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Workspace::self()->stackScreenEdgesUnderOverrideRedirect();
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}
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void EffectsHandlerImplX11::defineCursor(Qt::CursorShape shape)
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{
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const xcb_cursor_t c = Cursor::x11Cursor(shape);
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if (c != XCB_CURSOR_NONE) {
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m_mouseInterceptionWindow.defineCursor(c);
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}
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}
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void EffectsHandlerImplX11::doCheckInputWindowStacking()
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{
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m_mouseInterceptionWindow.raise();
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// Raise electric border windows above the input windows
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// so they can still be triggered. TODO: Do both at once.
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ScreenEdges::self()->ensureOnTop();
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}
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}
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