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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qeventdispatcher_glib_p.h"
#include "qguiapplication.h"
#include "qplatformdefs.h"
#include <glib.h>
#include "private/qguiapplication_p.h"
QT_BEGIN_NAMESPACE
struct GUserEventSource
{
GSource source;
QPAEventDispatcherGlib *q;
};
static gboolean userEventSourcePrepare(GSource *source, gint *timeout)
{
Q_UNUSED(timeout)
GUserEventSource *userEventSource = reinterpret_cast<GUserEventSource *>(source);
QPAEventDispatcherGlib *dispatcher = userEventSource->q;
if (dispatcher->m_flags & QEventLoop::ExcludeUserInputEvents)
return QWindowSystemInterface::nonUserInputEventsQueued();
else
return QWindowSystemInterface::windowSystemEventsQueued() > 0;
}
static gboolean userEventSourceCheck(GSource *source)
{
return userEventSourcePrepare(source, 0);
}
static gboolean userEventSourceDispatch(GSource *source, GSourceFunc, gpointer)
{
GUserEventSource *userEventSource = reinterpret_cast<GUserEventSource *>(source);
QPAEventDispatcherGlib *dispatcher = userEventSource->q;
QWindowSystemInterface::sendWindowSystemEvents(dispatcher->m_flags);
return true;
}
static GSourceFuncs userEventSourceFuncs = {
userEventSourcePrepare,
userEventSourceCheck,
userEventSourceDispatch,
NULL,
NULL,
NULL
};
QPAEventDispatcherGlibPrivate::QPAEventDispatcherGlibPrivate(GMainContext *context)
: QEventDispatcherGlibPrivate(context)
{
Q_Q(QPAEventDispatcherGlib);
userEventSource = reinterpret_cast<GUserEventSource *>(g_source_new(&userEventSourceFuncs,
sizeof(GUserEventSource)));
userEventSource->q = q;
g_source_set_can_recurse(&userEventSource->source, true);
g_source_attach(&userEventSource->source, mainContext);
}
QPAEventDispatcherGlib::QPAEventDispatcherGlib(QObject *parent)
: QEventDispatcherGlib(*new QPAEventDispatcherGlibPrivate, parent)
, m_flags(QEventLoop::AllEvents)
{
Q_D(QPAEventDispatcherGlib);
d->userEventSource->q = this;
}
QPAEventDispatcherGlib::~QPAEventDispatcherGlib()
{
Q_D(QPAEventDispatcherGlib);
g_source_destroy(&d->userEventSource->source);
g_source_unref(&d->userEventSource->source);
d->userEventSource = 0;
}
bool QPAEventDispatcherGlib::processEvents(QEventLoop::ProcessEventsFlags flags)
{
m_flags = flags;
return QEventDispatcherGlib::processEvents(m_flags);
}
QT_END_NAMESPACE
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