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145 lines
4.0 KiB
C++
145 lines
4.0 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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Copyright (C) 2011 Arthur Arlt <a.arlt@stud.uni-heidelberg.de>
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Copyright (C) 2013 Martin Gräßlin <mgraesslin@kde.org>
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Since the functionality provided in this class has been moved from
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class Workspace, it is not clear who exactly has written the code.
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The list below contains the copyright holders of the class Workspace.
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Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
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Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
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Copyright (C) 2009 Lucas Murray <lmurray@undefinedfire.com>
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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 "edge.h"
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#include "atoms.h"
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#include "cursor.h"
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namespace KWin
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{
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WindowBasedEdge::WindowBasedEdge(ScreenEdges *parent)
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: Edge(parent)
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, m_window(XCB_WINDOW_NONE)
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, m_approachWindow(XCB_WINDOW_NONE)
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{
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}
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WindowBasedEdge::~WindowBasedEdge()
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{
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}
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void WindowBasedEdge::doActivate()
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{
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createWindow();
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createApproachWindow();
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doUpdateBlocking();
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}
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void WindowBasedEdge::doDeactivate()
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{
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m_window.reset();
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m_approachWindow.reset();
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}
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void WindowBasedEdge::createWindow()
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{
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if (m_window.isValid()) {
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return;
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}
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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_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_POINTER_MOTION
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};
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m_window.create(geometry(), XCB_WINDOW_CLASS_INPUT_ONLY, mask, values);
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m_window.map();
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// Set XdndAware on the windows, so that DND enter events are received (#86998)
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xcb_atom_t version = 4; // XDND version
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xcb_change_property(connection(), XCB_PROP_MODE_REPLACE, m_window,
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atoms->xdnd_aware, XCB_ATOM_ATOM, 32, 1, (unsigned char*)(&version));
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}
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void WindowBasedEdge::createApproachWindow()
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{
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if (!activatesForPointer()) {
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return;
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}
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if (m_approachWindow.isValid()) {
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return;
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}
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if (!approachGeometry().isValid()) {
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return;
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}
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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_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_POINTER_MOTION
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};
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m_approachWindow.create(approachGeometry(), XCB_WINDOW_CLASS_INPUT_ONLY, mask, values);
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m_approachWindow.map();
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}
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void WindowBasedEdge::doGeometryUpdate()
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{
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m_window.setGeometry(geometry());
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if (m_approachWindow.isValid()) {
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m_approachWindow.setGeometry(approachGeometry());
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}
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}
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void WindowBasedEdge::doStartApproaching()
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{
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if (!activatesForPointer()) {
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return;
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}
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m_approachWindow.unmap();
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Cursor *cursor = Cursor::self();
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#ifndef KWIN_UNIT_TEST
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m_cursorPollingConnection = connect(cursor, &Cursor::posChanged, this, &WindowBasedEdge::updateApproaching);
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#endif
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cursor->startMousePolling();
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}
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void WindowBasedEdge::doStopApproaching()
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{
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if (!m_cursorPollingConnection) {
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return;
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}
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disconnect(m_cursorPollingConnection);
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m_cursorPollingConnection = QMetaObject::Connection();
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Cursor::self()->stopMousePolling();
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m_approachWindow.map();
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}
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void WindowBasedEdge::doUpdateBlocking()
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{
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if (!isReserved()) {
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return;
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}
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if (isBlocked()) {
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m_window.unmap();
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m_approachWindow.unmap();
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} else {
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m_window.map();
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m_approachWindow.map();
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}
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}
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}
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