diff options
Diffstat (limited to 'src/gui/kernel/qeventdispatcher_glib_qws.cpp')
| -rw-r--r-- | src/gui/kernel/qeventdispatcher_glib_qws.cpp | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/src/gui/kernel/qeventdispatcher_glib_qws.cpp b/src/gui/kernel/qeventdispatcher_glib_qws.cpp new file mode 100644 index 0000000000..7a800cea07 --- /dev/null +++ b/src/gui/kernel/qeventdispatcher_glib_qws.cpp @@ -0,0 +1,195 @@ +/**************************************************************************** +** +** 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 QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** 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, 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. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qeventdispatcher_glib_qws_p.h" + +#include "qapplication.h" + +#include "qplatformdefs.h" +#include "qapplication.h" +#include "private/qwscommand_qws_p.h" +#include "qwsdisplay_qws.h" +#include "qwsevent_qws.h" +#include "qwindowsystem_qws.h" + +#include <glib.h> + +QT_BEGIN_NAMESPACE + +// from qapplication_qws.cpp +extern QWSDisplay* qt_fbdpy; // QWS `display' + +//from qwindowsystem_qws.cpp +extern QList<QWSCommand*> *qt_get_server_queue(); + +struct GQWSEventSource +{ + GSource source; + QEventLoop::ProcessEventsFlags flags; + QWSEventDispatcherGlib *q; + QWSEventDispatcherGlibPrivate *d; +}; + +class QWSEventDispatcherGlibPrivate : public QEventDispatcherGlibPrivate +{ + Q_DECLARE_PUBLIC(QWSEventDispatcherGlib) + +public: + QWSEventDispatcherGlibPrivate(); + GQWSEventSource *qwsEventSource; + QList<QWSEvent*> queuedUserInputEvents; +}; + +static gboolean qwsEventSourcePrepare(GSource *s, gint *timeout) +{ + if (timeout) + *timeout = -1; + GQWSEventSource *source = reinterpret_cast<GQWSEventSource *>(s); + return qt_fbdpy->eventPending() || !source->d->queuedUserInputEvents.isEmpty() + || !qt_get_server_queue()->isEmpty() ; +} + +static gboolean qwsEventSourceCheck(GSource *s) +{ + GQWSEventSource *source = reinterpret_cast<GQWSEventSource *>(s); + return qt_fbdpy->eventPending() || !source->d->queuedUserInputEvents.isEmpty() + || !qt_get_server_queue()->isEmpty() ; +} + +static gboolean qwsEventSourceDispatch(GSource *s, GSourceFunc callback, gpointer user_data) +{ + GQWSEventSource *source = reinterpret_cast<GQWSEventSource *>(s); + + //??? ulong marker = XNextRequest(X11->display); + do { + QWSEvent *event; + if (!(source->flags & QEventLoop::ExcludeUserInputEvents) + && !source->d->queuedUserInputEvents.isEmpty()) { + // process a pending user input event + event = source->d->queuedUserInputEvents.takeFirst(); + } else if (qt_fbdpy->eventPending()) { + event = qt_fbdpy->getEvent(); + + if (source->flags & QEventLoop::ExcludeUserInputEvents) { + // queue user input events + + if (event->type == QWSEvent::Mouse || event->type == QWSEvent::Key) { + source->d->queuedUserInputEvents.append(event); + continue; + } + } + } else { + // no event to process + break; + } + + // send through event filter + if (source->q->filterEvent(event)) { + delete event; + continue; + } + + bool ret = qApp->qwsProcessEvent(event) == 1; + delete event; + if (ret) { + return true; + } + + } while (qt_fbdpy->eventPending()); + + if (callback) + callback(user_data); + return true; +} + +static GSourceFuncs qwsEventSourceFuncs = { + qwsEventSourcePrepare, + qwsEventSourceCheck, + qwsEventSourceDispatch, + NULL, + NULL, + NULL +}; + +QWSEventDispatcherGlibPrivate::QWSEventDispatcherGlibPrivate() +{ + qwsEventSource = reinterpret_cast<GQWSEventSource *>(g_source_new(&qwsEventSourceFuncs, + sizeof(GQWSEventSource))); + g_source_set_can_recurse(&qwsEventSource->source, true); + + qwsEventSource->flags = QEventLoop::AllEvents; + qwsEventSource->q = 0; + qwsEventSource->d = 0; + + g_source_attach(&qwsEventSource->source, mainContext); +} + +QWSEventDispatcherGlib::QWSEventDispatcherGlib(QObject *parent) + : QEventDispatcherGlib(*new QWSEventDispatcherGlibPrivate, parent) +{ +} + +QWSEventDispatcherGlib::~QWSEventDispatcherGlib() +{ + Q_D(QWSEventDispatcherGlib); + + g_source_destroy(&d->qwsEventSource->source); + d->qwsEventSource = 0; +} + +bool QWSEventDispatcherGlib::processEvents(QEventLoop::ProcessEventsFlags flags) +{ + Q_D(QWSEventDispatcherGlib); + QEventLoop::ProcessEventsFlags saved_flags = d->qwsEventSource->flags; + d->qwsEventSource->flags = flags; + bool returnValue = QEventDispatcherGlib::processEvents(flags); + d->qwsEventSource->flags = saved_flags; + return returnValue; +} + +void QWSEventDispatcherGlib::startingUp() +{ + Q_D(QWSEventDispatcherGlib); + d->qwsEventSource->q = this; + d->qwsEventSource->d = d; +} + +QT_END_NAMESPACE |