| /**************************************************************************** |
| ** |
| ** 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. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** GNU Lesser General Public License Usage |
| ** This file may be used under the terms of the GNU Lesser General Public |
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| ** 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 |
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| ** file. Please review the following information to ensure the GNU General |
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| ** Other Usage |
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| ** conditions contained in a signed written agreement between you and Nokia. |
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| ** $QT_END_LICENSE$ |
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| ****************************************************************************/ |
| |
| #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 |