--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/kernel/qeventdispatcher_x11.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,191 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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_x11_p.h"
+
+#include "qapplication.h"
+#include "qx11info_x11.h"
+
+#include "qt_x11_p.h"
+#include <private/qeventdispatcher_unix_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QEventDispatcherX11Private : public QEventDispatcherUNIXPrivate
+{
+ Q_DECLARE_PUBLIC(QEventDispatcherX11)
+public:
+ inline QEventDispatcherX11Private()
+ : xfd(-1)
+ { }
+ int xfd;
+ QList<XEvent> queuedUserInputEvents;
+};
+
+QEventDispatcherX11::QEventDispatcherX11(QObject *parent)
+ : QEventDispatcherUNIX(*new QEventDispatcherX11Private, parent)
+{ }
+
+QEventDispatcherX11::~QEventDispatcherX11()
+{ }
+
+bool QEventDispatcherX11::processEvents(QEventLoop::ProcessEventsFlags flags)
+{
+ Q_D(QEventDispatcherX11);
+
+ d->interrupt = false;
+ QApplication::sendPostedEvents();
+
+ ulong marker = XNextRequest(X11->display);
+ int nevents = 0;
+ do {
+ while (!d->interrupt) {
+ XEvent event;
+ if (!(flags & QEventLoop::ExcludeUserInputEvents)
+ && !d->queuedUserInputEvents.isEmpty()) {
+ // process a pending user input event
+ event = d->queuedUserInputEvents.takeFirst();
+ } else if (XEventsQueued(X11->display, QueuedAlready)) {
+ // process events from the X server
+ XNextEvent(X11->display, &event);
+
+ if (flags & QEventLoop::ExcludeUserInputEvents) {
+ // queue user input events
+ switch (event.type) {
+ case ButtonPress:
+ case ButtonRelease:
+ case MotionNotify:
+ case XKeyPress:
+ case XKeyRelease:
+ case EnterNotify:
+ case LeaveNotify:
+ d->queuedUserInputEvents.append(event);
+ continue;
+
+ case ClientMessage:
+ // only keep the wm_take_focus and
+ // _qt_scrolldone protocols, queue all other
+ // client messages
+ if (event.xclient.format == 32) {
+ if (event.xclient.message_type == ATOM(WM_PROTOCOLS) &&
+ (Atom) event.xclient.data.l[0] == ATOM(WM_TAKE_FOCUS)) {
+ break;
+ } else if (event.xclient.message_type == ATOM(_QT_SCROLL_DONE)) {
+ break;
+ }
+ }
+ d->queuedUserInputEvents.append(event);
+ continue;
+
+ default:
+ break;
+ }
+ }
+ } else {
+ // no event to process
+ break;
+ }
+
+ // send through event filter
+ if (filterEvent(&event))
+ continue;
+
+ nevents++;
+ if (qApp->x11ProcessEvent(&event) == 1)
+ return true;
+
+ if (event.xany.serial >= marker) {
+ if (XEventsQueued(X11->display, QueuedAfterFlush))
+ flags &= ~QEventLoop::WaitForMoreEvents;
+ goto out;
+ }
+ }
+ } while (!d->interrupt && XEventsQueued(X11->display, QueuedAfterFlush));
+
+ out:
+ if (!d->interrupt) {
+ const uint exclude_all =
+ QEventLoop::ExcludeSocketNotifiers | QEventLoop::X11ExcludeTimers | QEventLoop::WaitForMoreEvents;
+ if (nevents > 0 && ((uint)flags & exclude_all) == exclude_all) {
+ QApplication::sendPostedEvents();
+ return nevents > 0;
+ }
+ // return true if we handled events, false otherwise
+ return QEventDispatcherUNIX::processEvents(flags) || (nevents > 0);
+ }
+ return nevents > 0;
+}
+
+bool QEventDispatcherX11::hasPendingEvents()
+{
+ extern uint qGlobalPostedEventsCount(); // from qapplication.cpp
+ return (qGlobalPostedEventsCount() || XPending(X11->display));
+}
+
+void QEventDispatcherX11::flush()
+{
+ XFlush(X11->display);
+}
+
+void QEventDispatcherX11::startingUp()
+{
+ Q_D(QEventDispatcherX11);
+ d->xfd = XConnectionNumber(X11->display);
+}
+
+void QEventDispatcherX11::closingDown()
+{
+ Q_D(QEventDispatcherX11);
+ d->xfd = -1;
+}
+
+int QEventDispatcherX11::select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
+ timeval *timeout)
+{
+ Q_D(QEventDispatcherX11);
+ if (d->xfd > 0) {
+ nfds = qMax(nfds - 1, d->xfd) + 1;
+ FD_SET(d->xfd, readfds);
+ }
+ return QEventDispatcherUNIX::select(nfds, readfds, writefds, exceptfds, timeout);
+}
+
+QT_END_NAMESPACE