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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "appmainwindow.h"
#ifdef Q_OS_WIN
#include <windows.h>
#endif
#include <QEvent>
#include <QCoreApplication>
#ifdef QTC_USE_QX11INFO
#include <X11/Xlib.h>
#include <QX11Info>
#endif
namespace Utils {
/* The notification signal is delayed by using a custom event
* as otherwise device removal is not detected properly
* (devices are still present in the registry. */
class DeviceNotifyEvent : public QEvent {
public:
explicit DeviceNotifyEvent(int id) : QEvent(static_cast<QEvent::Type>(id)) {}
};
AppMainWindow::AppMainWindow() :
m_deviceEventId(QEvent::registerEventType(QEvent::User + 2))
{
}
void AppMainWindow::raiseWindow()
{
setWindowState(windowState() & ~Qt::WindowMinimized);
raise();
#if defined(QTC_USE_QX11INFO)
// Do the same as QWidget::activateWindow(), but with two differences
// * set newest timestamp (instead of userTime()). See QTBUG-24932
// * set source to 'pager'. This seems to do the trick e.g. on kwin even if
// the app currently having focus is 'active' (but we hit a breakpoint).
XEvent e;
e.xclient.type = ClientMessage;
e.xclient.message_type = XInternAtom(QX11Info::display(), "_NET_ACTIVE_WINDOW", 1);
e.xclient.display = QX11Info::display();
e.xclient.window = winId();
e.xclient.format = 32;
e.xclient.data.l[0] = 2; // pager!
e.xclient.data.l[1] = QX11Info::appTime(); // X11 time!
e.xclient.data.l[2] = None;
e.xclient.data.l[3] = 0;
e.xclient.data.l[4] = 0;
XSendEvent(QX11Info::display(), QX11Info::appRootWindow(),
false, SubstructureNotifyMask | SubstructureRedirectMask, &e);
#else
activateWindow();
#endif
}
#ifdef Q_OS_WIN
bool AppMainWindow::event(QEvent *event)
{
if (event->type() == m_deviceEventId) {
event->accept();
emit deviceChange();
return true;
}
return QMainWindow::event(event);
}
bool AppMainWindow::winEvent(MSG *msg, long *result)
{
if (msg->message == WM_DEVICECHANGE) {
if (msg->wParam & 0x7 /* DBT_DEVNODES_CHANGED */) {
*result = TRUE;
QCoreApplication::postEvent(this, new DeviceNotifyEvent(m_deviceEventId));
}
}
return false;
}
#endif
} // namespace Utils
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