c8cf1e4c7e
Since the method destroy() was called only from one location in the code followed by update(), the funtionality has been moved to the method update() which now takes an boolean argument 'force'. This argument is false by default and set to true only at that location where destroy() was called formerly.
376 lines
14 KiB
C++
376 lines
14 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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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 "screenedge.h"
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// KWin
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#include "atoms.h"
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#include "effects.h"
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#include "options.h"
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#include "utils.h"
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#include "workspace.h"
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// Qt
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#include <QtCore/QTimer>
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#include <QtCore/QVector>
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#include <QtCore/QTextStream>
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#include <QtDBus/QDBusInterface>
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// KDE-Workspace
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#include <kephal/screens.h>
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namespace KWin {
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ScreenEdge::ScreenEdge()
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: QObject(NULL)
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, m_screenEdgeWindows(ELECTRIC_COUNT, None)
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, m_screenEdgeReserved(ELECTRIC_COUNT, 0)
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{
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}
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ScreenEdge::~ScreenEdge()
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{
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}
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void ScreenEdge::init()
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{
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reserveActions(true);
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if (options->electricBorders() == Options::ElectricAlways) {
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reserveDesktopSwitching(true);
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}
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update();
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}
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void ScreenEdge::update(bool force)
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{
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m_screenEdgeTimeFirst = xTime();
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m_screenEdgeTimeLast = xTime();
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m_screenEdgeTimeLastTrigger = xTime();
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m_currentScreenEdge = ElectricNone;
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QRect r = Kephal::ScreenUtils::desktopGeometry();
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m_screenEdgeTop = r.top();
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m_screenEdgeBottom = r.bottom();
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m_screenEdgeLeft = r.left();
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m_screenEdgeRight = r.right();
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for (int pos = 0; pos < ELECTRIC_COUNT; ++pos) {
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if (force || m_screenEdgeReserved[pos] == 0) {
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if (m_screenEdgeWindows[pos] != None)
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XDestroyWindow(display(), m_screenEdgeWindows[pos]);
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m_screenEdgeWindows[pos] = None;
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}
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if (m_screenEdgeReserved[pos] == 0) {
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continue;
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}
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if (m_screenEdgeWindows[pos] != None)
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continue;
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XSetWindowAttributes attributes;
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attributes.override_redirect = True;
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attributes.event_mask = EnterWindowMask | LeaveWindowMask;
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unsigned long valuemask = CWOverrideRedirect | CWEventMask;
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int xywh[ELECTRIC_COUNT][4] = {
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{ r.left() + 1, r.top(), r.width() - 2, 1 }, // Top
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{ r.right(), r.top(), 1, 1 }, // Top-right
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{ r.right(), r.top() + 1, 1, r.height() - 2 }, // Etc.
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{ r.right(), r.bottom(), 1, 1 },
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{ r.left() + 1, r.bottom(), r.width() - 2, 1 },
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{ r.left(), r.bottom(), 1, 1 },
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{ r.left(), r.top() + 1, 1, r.height() - 2 },
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{ r.left(), r.top(), 1, 1 }
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};
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m_screenEdgeWindows[pos] = XCreateWindow(display(), rootWindow(),
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xywh[pos][0], xywh[pos][1], xywh[pos][2], xywh[pos][3],
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0, CopyFromParent, InputOnly, CopyFromParent, valuemask, &attributes);
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XMapWindow(display(), m_screenEdgeWindows[pos]);
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// Set XdndAware on the windows, so that DND enter events are received (#86998)
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Atom version = 4; // XDND version
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XChangeProperty(display(), m_screenEdgeWindows[pos], atoms->xdnd_aware, XA_ATOM,
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32, PropModeReplace, (unsigned char*)(&version), 1);
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}
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}
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void ScreenEdge::restoreSize(ElectricBorder border)
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{
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if (m_screenEdgeWindows[border] == None)
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return;
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QRect r = Kephal::ScreenUtils::desktopGeometry();
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int xywh[ELECTRIC_COUNT][4] = {
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{ r.left() + 1, r.top(), r.width() - 2, 1 }, // Top
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{ r.right(), r.top(), 1, 1 }, // Top-right
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{ r.right(), r.top() + 1, 1, r.height() - 2 }, // Etc.
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{ r.right(), r.bottom(), 1, 1 },
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{ r.left() + 1, r.bottom(), r.width() - 2, 1 },
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{ r.left(), r.bottom(), 1, 1 },
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{ r.left(), r.top() + 1, 1, r.height() - 2 },
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{ r.left(), r.top(), 1, 1 }
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};
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XMoveResizeWindow(display(), m_screenEdgeWindows[border],
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xywh[border][0], xywh[border][1], xywh[border][2], xywh[border][3]);
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}
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void ScreenEdge::reserveActions(bool isToReserve)
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{
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for (int pos = 0; pos < ELECTRIC_COUNT; ++pos)
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if (options->electricBorderAction(static_cast<ElectricBorder>(pos))) {
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if (isToReserve)
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reserve(static_cast<ElectricBorder>(pos));
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else
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unreserve(static_cast<ElectricBorder>(pos));
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}
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}
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void ScreenEdge::reserveDesktopSwitching(bool isToReserve)
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{
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for (int pos = 0; pos < ELECTRIC_COUNT; ++pos)
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if (isToReserve)
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reserve(static_cast<ElectricBorder>(pos));
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else
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unreserve(static_cast<ElectricBorder>(pos));
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}
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void ScreenEdge::reserve(ElectricBorder border)
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{
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if (border == ElectricNone)
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return;
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if (m_screenEdgeReserved[border]++ == 0)
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QTimer::singleShot(0, this, SLOT(update()));
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}
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void ScreenEdge::unreserve(ElectricBorder border)
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{
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if (border == ElectricNone)
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return;
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assert(m_screenEdgeReserved[border] > 0);
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if (--m_screenEdgeReserved[border] == 0)
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QTimer::singleShot(0, this, SLOT(update()));
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}
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void ScreenEdge::check(const QPoint& pos, Time now)
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{
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if ((pos.x() != m_screenEdgeLeft) &&
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(pos.x() != m_screenEdgeRight) &&
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(pos.y() != m_screenEdgeTop) &&
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(pos.y() != m_screenEdgeBottom))
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return;
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bool have_borders = false;
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for (int i = 0; i < ELECTRIC_COUNT; ++i)
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if (m_screenEdgeWindows[i] != None)
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have_borders = true;
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if (!have_borders)
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return;
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Time treshold_set = options->electricBorderDelay(); // Set timeout
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Time treshold_reset = 250; // Reset timeout
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Time treshold_trigger = options->electricBorderCooldown(); // Minimum time between triggers
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int distance_reset = 30; // Mouse should not move more than this many pixels
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int pushback_pixels = options->electricBorderPushbackPixels();
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ElectricBorder border;
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if (pos.x() == m_screenEdgeLeft && pos.y() == m_screenEdgeTop)
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border = ElectricTopLeft;
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else if (pos.x() == m_screenEdgeRight && pos.y() == m_screenEdgeTop)
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border = ElectricTopRight;
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else if (pos.x() == m_screenEdgeLeft && pos.y() == m_screenEdgeBottom)
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border = ElectricBottomLeft;
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else if (pos.x() == m_screenEdgeRight && pos.y() == m_screenEdgeBottom)
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border = ElectricBottomRight;
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else if (pos.x() == m_screenEdgeLeft)
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border = ElectricLeft;
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else if (pos.x() == m_screenEdgeRight)
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border = ElectricRight;
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else if (pos.y() == m_screenEdgeTop)
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border = ElectricTop;
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else if (pos.y() == m_screenEdgeBottom)
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border = ElectricBottom;
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else
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abort();
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if (m_screenEdgeWindows[border] == None)
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return;
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if (pushback_pixels == 0) {
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// no pushback so we have to activate at once
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m_screenEdgeTimeLast = now;
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}
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if ((m_currentScreenEdge == border) &&
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(timestampDiff(m_screenEdgeTimeLast, now) < treshold_reset) &&
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(timestampDiff(m_screenEdgeTimeLastTrigger, now) > treshold_trigger) &&
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((pos - m_screenEdgePushPoint).manhattanLength() < distance_reset)) {
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m_screenEdgeTimeLast = now;
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if (timestampDiff(m_screenEdgeTimeFirst, now) > treshold_set) {
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m_currentScreenEdge = ElectricNone;
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m_screenEdgeTimeLastTrigger = now;
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if (Workspace::self()->getMovingClient()) {
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// If moving a client or have force doing the desktop switch
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if (options->electricBorders() != Options::ElectricDisabled)
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switchDesktop(border, pos);
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return; // Don't reset cursor position
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} else {
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if (options->electricBorders() == Options::ElectricAlways &&
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(border == ElectricTop || border == ElectricRight ||
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border == ElectricBottom || border == ElectricLeft)) {
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// If desktop switching is always enabled don't apply it to the corners if
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// an effect is applied to it (We will check that later).
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switchDesktop(border, pos);
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return; // Don't reset cursor position
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}
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switch(options->electricBorderAction(border)) {
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case ElectricActionDashboard: { // Display Plasma dashboard
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QDBusInterface plasmaApp("org.kde.plasma-desktop", "/App");
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plasmaApp.call("toggleDashboard");
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}
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break;
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case ElectricActionShowDesktop: {
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Workspace::self()->setShowingDesktop(!Workspace::self()->showingDesktop());
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break;
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}
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case ElectricActionLockScreen: { // Lock the screen
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QDBusInterface screenSaver("org.kde.screensaver", "/ScreenSaver");
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screenSaver.call("Lock");
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}
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break;
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case ElectricActionPreventScreenLocking: {
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break;
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}
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case ElectricActionNone: // Either desktop switching or an effect
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default: {
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if (effects && static_cast<EffectsHandlerImpl*>(effects)->borderActivated(border))
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{} // Handled by effects
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else {
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switchDesktop(border, pos);
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return; // Don't reset cursor position
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}
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}
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}
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}
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}
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} else {
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m_currentScreenEdge = border;
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m_screenEdgeTimeFirst = now;
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m_screenEdgeTimeLast = now;
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m_screenEdgePushPoint = pos;
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}
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// Reset the pointer to find out whether the user is really pushing
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// (the direction back from which it came, starting from top clockwise)
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const int xdiff[ELECTRIC_COUNT] = { 0,
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-pushback_pixels,
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-pushback_pixels,
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-pushback_pixels,
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0,
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pushback_pixels,
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pushback_pixels,
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pushback_pixels
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};
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const int ydiff[ELECTRIC_COUNT] = { pushback_pixels,
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pushback_pixels,
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0,
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-pushback_pixels,
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-pushback_pixels,
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-pushback_pixels,
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0,
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pushback_pixels
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};
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QCursor::setPos(pos.x() + xdiff[border], pos.y() + ydiff[border]);
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}
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void ScreenEdge::switchDesktop(ElectricBorder border, const QPoint& _pos)
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{
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QPoint pos = _pos;
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int desk = Workspace::self()->currentDesktop();
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const int OFFSET = 2;
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if (border == ElectricLeft || border == ElectricTopLeft || border == ElectricBottomLeft) {
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desk = Workspace::self()->desktopToLeft(desk, options->rollOverDesktops);
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pos.setX(displayWidth() - 1 - OFFSET);
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}
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if (border == ElectricRight || border == ElectricTopRight || border == ElectricBottomRight) {
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desk = Workspace::self()->desktopToRight(desk, options->rollOverDesktops);
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pos.setX(OFFSET);
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}
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if (border == ElectricTop || border == ElectricTopLeft || border == ElectricTopRight) {
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desk = Workspace::self()->desktopAbove(desk, options->rollOverDesktops);
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pos.setY(displayHeight() - 1 - OFFSET);
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}
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if (border == ElectricBottom || border == ElectricBottomLeft || border == ElectricBottomRight) {
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desk = Workspace::self()->desktopBelow(desk, options->rollOverDesktops);
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pos.setY(OFFSET);
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}
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int desk_before = Workspace::self()->currentDesktop();
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Workspace::self()->setCurrentDesktop(desk);
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if (Workspace::self()->currentDesktop() != desk_before)
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QCursor::setPos(pos);
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}
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bool ScreenEdge::isEntered(XEvent* e)
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{
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if (e->type == EnterNotify) {
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for (int i = 0; i < ELECTRIC_COUNT; ++i)
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if (m_screenEdgeWindows[i] != None && e->xcrossing.window == m_screenEdgeWindows[i]) {
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// The user entered an electric border
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check(QPoint(e->xcrossing.x_root, e->xcrossing.y_root), e->xcrossing.time);
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return true;
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}
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}
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if (e->type == ClientMessage) {
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if (e->xclient.message_type == atoms->xdnd_position) {
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for (int i = 0; i < ELECTRIC_COUNT; ++i)
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if (m_screenEdgeWindows[i] != None && e->xclient.window == m_screenEdgeWindows[i]) {
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updateXTime();
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check(QPoint(e->xclient.data.l[2] >> 16, e->xclient.data.l[2] & 0xffff), xTime());
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return true;
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}
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}
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}
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return false;
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}
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void ScreenEdge::raiseWindows()
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{
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Window* windows = new Window[ 8 ]; // There are up to 8 borders
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int pos = 0;
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for (int i = 0; i < ELECTRIC_COUNT; ++i)
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if (m_screenEdgeWindows[ i ] != None)
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windows[ pos++ ] = m_screenEdgeWindows[ i ];
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if (!pos) {
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delete [] windows;
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return; // No borders at all
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}
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XRaiseWindow(display(), windows[ 0 ]);
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XRestackWindows(display(), windows, pos);
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delete [] windows;
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}
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const QVector< Window >& ScreenEdge::windows()
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{
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return m_screenEdgeWindows;
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}
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} //namespace
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