From 4efaf305f51d09e214645a18a7bfa62bc36e2c61 Mon Sep 17 00:00:00 2001
From: Morten Sorvig <morten.sorvig@nokia.com>
Date: Tue, 21 Jun 2011 13:40:57 +0200
Subject: Add lighthouse event dispatcher API.

Platform plugin creation is now moved forward in
order to have a platform plugin instance at event
dispatcher creation time.

Plugins are now responsible for implementing
PlatformIntegration::createEventDispatcher and returning
an QAbstractEventDispatcher subclass.
---
 .../eventdispatchers/qeventdispatcher_glib.cpp     | 133 +++++++++++++++++++++
 1 file changed, 133 insertions(+)
 create mode 100644 src/platformsupport/eventdispatchers/qeventdispatcher_glib.cpp

(limited to 'src/platformsupport/eventdispatchers/qeventdispatcher_glib.cpp')

diff --git a/src/platformsupport/eventdispatchers/qeventdispatcher_glib.cpp b/src/platformsupport/eventdispatchers/qeventdispatcher_glib.cpp
new file mode 100644
index 0000000000..39b14e32af
--- /dev/null
+++ b/src/platformsupport/eventdispatchers/qeventdispatcher_glib.cpp
@@ -0,0 +1,133 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qeventdispatcher_glib_p.h"
+
+#include "qguiapplication.h"
+
+#include "qplatformdefs.h"
+
+#include <glib.h>
+#include "private/qguiapplication_p.h"
+
+#include <qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+struct GUserEventSource
+{
+    GSource source;
+    QPAEventDispatcherGlib *q;
+};
+
+static gboolean userEventSourcePrepare(GSource *s, gint *timeout)
+{
+    Q_UNUSED(s)
+    Q_UNUSED(timeout)
+
+    return QWindowSystemInterfacePrivate::windowSystemEventsQueued() > 0;
+}
+
+static gboolean userEventSourceCheck(GSource *source)
+{
+    return userEventSourcePrepare(source, 0);
+}
+
+static gboolean userEventSourceDispatch(GSource *s, GSourceFunc, gpointer)
+{
+    GUserEventSource * source = reinterpret_cast<GUserEventSource *>(s);
+
+    QWindowSystemInterfacePrivate::WindowSystemEvent * event;
+    while (QWindowSystemInterfacePrivate::windowSystemEventsQueued()) {
+        event = QWindowSystemInterfacePrivate::getWindowSystemEvent();
+        if (!event)
+            break;
+
+        // send through event filter
+        if (source->q->filterEvent(event)) {
+            delete event;
+            continue;
+        }
+        QGuiApplicationPrivate::processWindowSystemEvent(event);
+        delete event;
+    }
+
+    return true;
+}
+
+
+static GSourceFuncs userEventSourceFuncs = {
+    userEventSourcePrepare,
+    userEventSourceCheck,
+    userEventSourceDispatch,
+    NULL,
+    NULL,
+    NULL
+};
+
+QPAEventDispatcherGlibPrivate::QPAEventDispatcherGlibPrivate(GMainContext *context)
+    : QEventDispatcherGlibPrivate(context)
+{
+    userEventSource = reinterpret_cast<GUserEventSource *>(g_source_new(&userEventSourceFuncs,
+                                                                       sizeof(GUserEventSource)));
+    userEventSource->q = 0;
+    g_source_set_can_recurse(&userEventSource->source, true);
+    g_source_attach(&userEventSource->source, mainContext);
+}
+
+
+QPAEventDispatcherGlib::QPAEventDispatcherGlib(QObject *parent)
+    : QEventDispatcherGlib(*new QPAEventDispatcherGlibPrivate, parent)
+{
+    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;
+}
+
+QT_END_NAMESPACE
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