You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
lxqt-panel-packaging/plugin-showdesktop/showdesktop.cpp

102 lines
3.6 KiB

/* BEGIN_COMMON_COPYRIGHT_HEADER
* (c)LGPL2+
*
* LXDE-Qt - a lightweight, Qt based, desktop toolset
* http://razor-qt.org
*
* Copyright: 2010-2011 Razor team
* Authors:
* Petr Vanek <petr@scribus.info>
*
* This program or library is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* END_COMMON_COPYRIGHT_HEADER */
#include <QToolButton>
#include <QAction>
#include <QX11Info>
#include <lxqt-globalkeys.h>
#include <XdgIcon>
#include <LXQt/Notification>
#include <KF5/KWindowSystem/KWindowSystem>
#include <KF5/KWindowSystem/NETWM>
#include "showdesktop.h"
// Still needed for lxde/lxqt#338
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#define DEFAULT_SHORTCUT "Control+Alt+D"
ShowDesktop::ShowDesktop(const ILxQtPanelPluginStartupInfo &startupInfo) :
QObject(),
ILxQtPanelPlugin(startupInfo)
{
m_key = GlobalKeyShortcut::Client::instance()->addAction(QString(), QString("/panel/%1/show_hide").arg(settings()->group()), tr("Show desktop"), this);
if (m_key)
{
connect(m_key, SIGNAL(activated()), this, SLOT(toggleShowingDesktop()));
if (m_key->shortcut().isEmpty())
{
m_key->changeShortcut(DEFAULT_SHORTCUT);
if (m_key->shortcut().isEmpty())
{
LxQt::Notification::notify(tr("Show Desktop: Global shortcut '%1' cannot be registered").arg(DEFAULT_SHORTCUT));
}
}
}
QAction * act = new QAction(XdgIcon::fromTheme("user-desktop"), tr("Show Desktop"), this);
connect(act, SIGNAL(triggered()), this, SLOT(toggleShowingDesktop()));
mButton.setDefaultAction(act);
mButton.setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
}
void ShowDesktop::toggleShowingDesktop()
{
// Paulo: KWindowSystem is not working for Openbox here, see lxde/lxqt#338
// KWindowSystem fix: https://git.reviewboard.kde.org/r/121667
// NETRootInfo info(QX11Info::connection(), NET::WMDesktop);
// info.setShowingDesktop(!KWindowSystem::showingDesktop());
const char *atomStr = "_NET_SHOWING_DESKTOP";
xcb_intern_atom_cookie_t cookie = xcb_intern_atom(QX11Info::connection(), false, strlen(atomStr), atomStr);
xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(QX11Info::connection(), cookie, 0);
xcb_atom_t showing_desktop_atom = reply->atom;
free(reply);
uint32_t data[5] = {
uint32_t(KWindowSystem::showingDesktop() ? 0 : 1), 0, 0, 0, 0
};
xcb_client_message_event_t event;
event.response_type = XCB_CLIENT_MESSAGE;
event.format = 32;
event.sequence = 0;
event.window = QX11Info::appRootWindow();
event.type = showing_desktop_atom;
for (int i = 0; i < 5; i++)
event.data.data32[i] = data[i];
xcb_send_event(QX11Info::connection(), false, QX11Info::appRootWindow(),
(XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY),
(const char *) &event);
}
#undef DEFAULT_SHORTCUT