/*!
\overload
Starts (or restarts) the timer with a \a msec milliseconds timeout and the
given \a timerType. See Qt::TimerType for information on the different
timer types.
\a obj will receive timer events.
\sa stop(), isActive(), QObject::timerEvent(), Qt::TimerType
*/
void QBasicTimer::start(int msec, Qt::TimerType timerType, QObject *obj)
{
QAbstractEventDispatcher *eventDispatcher = QAbstractEventDispatcher::instance();
if (Q_UNLIKELY(msec < 0)) {
qWarning("QBasicTimer::start: Timers cannot have negative timeouts");
return;
}
if (Q_UNLIKELY(!eventDispatcher)) {
qWarning("QBasicTimer::start: QBasicTimer can only be used with threads started with QThread");
return;
}
if (Q_UNLIKELY(obj && obj->thread() != eventDispatcher->thread())) {
qWarning("QBasicTimer::start: Timers cannot be started from another thread");
return;
}
if (id) {
if (Q_LIKELY(eventDispatcher->unregisterTimer(id)))
QAbstractEventDispatcherPrivate::releaseTimerId(id);
else
qWarning("QBasicTimer::start: Stopping previous timer failed. Possibly trying to stop from a different thread");
}
id = 0;
if (obj)
id = eventDispatcher->registerTimer(msec, timerType, obj);
}
/*!
Stops the timer.
\sa start() isActive()
*/
void QBasicTimer::stop()
{
if (id) {
QAbstractEventDispatcher *eventDispatcher = QAbstractEventDispatcher::instance();
if (eventDispatcher)
eventDispatcher->unregisterTimer(id);
}
id = 0;
}
void Waiter::stop(bool retValue)
{
timer_.stop();
QAbstractEventDispatcher * eventDispatcher = QAbstractEventDispatcher::instance();
if (eventDispatcher) {
while (eventDispatcher->processEvents(QEventLoop::AllEvents));
}
eventLoop_.exit(retValue ? 0 : 1);
}
void LimitTest::testLimits(QCoreApplication &a) {
QAbstractEventDispatcher *ed = QAbstractEventDispatcher::instance();
if (QLatin1String(ed->metaObject()->className()) != QLatin1String("QEventDispatcherGlib"))
qWarning("Not running with glib. While you may be able to open more descriptors, sockets above %d will not work", FD_SETSIZE);
qWarning("Running descriptor test.");
int count;
QList<QFile *> ql;
for (count=0;count < 524288; ++count) {
QFile *qf = new QFile(a.applicationFilePath());
if (qf->open(QIODevice::ReadOnly))
ql.prepend(qf);
else
break;
if ((count & 1023) == 0)
qWarning("%d descriptors...", count);
}
foreach(QFile *qf, ql)
delete qf;
ql.clear();
qCritical("Managed to open %d descriptors", count);
qm = new QMutex();
qw = new QWaitCondition();
qstartw = new QWaitCondition();
int fdcount = count / 8;
if (sizeof(void *) < 8)
if (fdcount > 1024)
fdcount = 1024;
QList<LimitTest *> qtl;
for (count=0;count < fdcount; ++count) {
LimitTest *t = new LimitTest();
t->tid = count;
qtl << t;
qm->lock();
t->start();
qstartw->wait(qm);
qm->unlock();
if (! t->isRunning())
break;
if ((count & 511) == 0)
qWarning("%d threads...", count);
}
qm->lock();
qw->wakeAll();
qm->unlock();
foreach(LimitTest *qt, qtl) {
if (! qt->wait(1000)) {
qWarning("Thread %d failed to terminate...", qt->tid);
qt->terminate();
}
}
qFatal("Managed to spawn %d threads", count);
}
void QWindowSystemInterfacePrivate::queueWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent *ev)
{
queueMutex.lock();
windowSystemEventQueue.append(ev);
queueMutex.unlock();
QAbstractEventDispatcher *dispatcher = QApplicationPrivate::qt_qpa_core_dispatcher();
if (dispatcher)
dispatcher->wakeUp();
}
QxtGlobalShortcutPrivate::~QxtGlobalShortcutPrivate()
{
#ifndef Q_OS_MACOS
--ref;
if (ref == 0) {
QAbstractEventDispatcher *ed = QAbstractEventDispatcher::instance();
if (ed != nullptr) {
ed->removeNativeEventFilter(this);
}
}
#endif // Q_OS_MACOS
}
QWinEventNotifier::QWinEventNotifier(HANDLE hEvent, QObject *parent)
: QObject(*new QWinEventNotifierPrivate(hEvent, false), parent)
{
Q_D(QWinEventNotifier);
QAbstractEventDispatcher *eventDispatcher = d->threadData->eventDispatcher;
if (!eventDispatcher) {
qWarning("QWinEventNotifier: Can only be used with threads started with QThread");
} else {
eventDispatcher->registerEventNotifier(this);
}
d->enabled = true;
}
/*!
Stops the timer.
\sa start(), isActive()
*/
void QBasicTimer::stop()
{
if (id) {
QAbstractEventDispatcher *eventDispatcher = QAbstractEventDispatcher::instance();
if (eventDispatcher) {
if (Q_UNLIKELY(!eventDispatcher->unregisterTimer(id))) {
qWarning("QBasicTimer::stop: Failed. Possibly trying to stop from a different thread");
return;
}
QAbstractEventDispatcherPrivate::releaseTimerId(id);
}
}
id = 0;
}
bool
nsAppShell::ProcessNextNativeEvent(bool mayWait)
{
QEventLoop::ProcessEventsFlags flags = QEventLoop::AllEvents;
if (mayWait)
flags |= QEventLoop::WaitForMoreEvents;
QAbstractEventDispatcher *dispatcher = QAbstractEventDispatcher::instance(qApp->thread());
if (!dispatcher)
return PR_FALSE;
return dispatcher->processEvents(flags) ? PR_TRUE : PR_FALSE;
}
/*!
\overload
Starts (or restarts) the timer with a \a msec milliseconds timeout and the
given \a timerType. See Qt::TimerType for information on the different
timer types.
\a obj will receive timer events.
\sa stop(), isActive(), QObject::timerEvent(), Qt::TimerType
*/
void QBasicTimer::start(int msec, Qt::TimerType timerType, QObject *obj)
{
QAbstractEventDispatcher *eventDispatcher = QAbstractEventDispatcher::instance();
if (!eventDispatcher) {
qWarning("QBasicTimer::start: QBasicTimer can only be used with threads started with QThread");
return;
}
if (id) {
eventDispatcher->unregisterTimer(id);
QAbstractEventDispatcherPrivate::releaseTimerId(id);
}
id = 0;
if (obj)
id = eventDispatcher->registerTimer(msec, timerType, obj);
}
void QWinEventNotifier::setEnabled(bool enable)
{
Q_D(QWinEventNotifier);
if (d->enabled == enable) // no change
return;
d->enabled = enable;
QAbstractEventDispatcher *eventDispatcher = d->threadData->eventDispatcher;
if (!eventDispatcher) // perhaps application is shutting down
return;
if (enable)
eventDispatcher->registerEventNotifier(this);
else
eventDispatcher->unregisterEventNotifier(this);
}
QxtGlobalShortcutPrivate::~QxtGlobalShortcutPrivate()
{
#ifndef Q_WS_MAC
--ref;
if (ref == 0) {
QAbstractEventDispatcher *ed = QAbstractEventDispatcher::instance();
if (ed != 0) {
# if QT_VERSION < QT_VERSION_CHECK(5,0,0)
ed->setEventFilter(prevEventFilter);
# else
ed->removeNativeEventFilter(this);
# endif
}
}
#endif // Q_WS_MAC
}
bool QXcbGlxIntegration::handleXcbEvent(xcb_generic_event_t *event, uint responseType)
{
bool handled = false;
// Check if a custom XEvent constructor was registered in xlib for this event type, and call it discarding the constructed XEvent if any.
// XESetWireToEvent might be used by libraries to intercept messages from the X server e.g. the OpenGL lib waiting for DRI2 events.
Display *xdisplay = static_cast<Display *>(m_connection->xlib_display());
XLockDisplay(xdisplay);
bool locked = true;
Bool (*proc)(Display*, XEvent*, xEvent*) = XESetWireToEvent(xdisplay, responseType, 0);
if (proc) {
XESetWireToEvent(xdisplay, responseType, proc);
XEvent dummy;
event->sequence = LastKnownRequestProcessed(xdisplay);
if (proc(xdisplay, &dummy, (xEvent*)event)) {
#ifdef XCB_HAS_XCB_GLX
// DRI2 clients don't receive GLXBufferSwapComplete events on the wire.
// Instead the GLX event is synthesized from the DRI2BufferSwapComplete event
// by DRI2WireToEvent(). For an application to be able to see the event
// we have to convert it to an xcb_glx_buffer_swap_complete_event_t and
// pass it to the native event filter.
const uint swap_complete = m_glx_first_event + XCB_GLX_BUFFER_SWAP_COMPLETE;
QAbstractEventDispatcher* dispatcher = QAbstractEventDispatcher::instance();
if (dispatcher && uint(dummy.type) == swap_complete && responseType != swap_complete) {
QGLXBufferSwapComplete *xev = reinterpret_cast<QGLXBufferSwapComplete *>(&dummy);
xcb_glx_buffer_swap_complete_event_t ev;
memset(&ev, 0, sizeof(xcb_glx_buffer_swap_complete_event_t));
ev.response_type = xev->type;
ev.sequence = xev->serial;
ev.event_type = xev->event_type;
ev.drawable = xev->drawable;
ev.ust_hi = xev->ust >> 32;
ev.ust_lo = xev->ust & 0xffffffff;
ev.msc_hi = xev->msc >> 32;
ev.msc_lo = xev->msc & 0xffffffff;
ev.sbc = xev->sbc & 0xffffffff;
// Unlock the display before calling the native event filter
XUnlockDisplay(xdisplay);
locked = false;
QByteArray genericEventFilterType = m_connection->nativeInterface()->genericEventFilterType();
long result = 0;
handled = dispatcher->filterNativeEvent(genericEventFilterType, &ev, &result);
}
#endif
}
}
void QWinEventNotifier::setEnabled(bool enable)
{
Q_D(QWinEventNotifier);
if (d->enabled == enable) // no change
return;
d->enabled = enable;
QAbstractEventDispatcher *eventDispatcher = d->threadData->eventDispatcher.load();
if (!eventDispatcher) // perhaps application is shutting down
return;
if (Q_UNLIKELY(thread() != QThread::currentThread())) {
qWarning("QWinEventNotifier: Event notifiers cannot be enabled or disabled from another thread");
return;
}
if (enable)
eventDispatcher->registerEventNotifier(this);
else
eventDispatcher->unregisterEventNotifier(this);
}
void fixTimers()
{
edlink();
updateTimerList();
for(int n = 0; n < timers.count(); ++n)
{
TimerInfo &info = timers[n];
QThread *objectThread = target->thread();
QAbstractEventDispatcher *ed = QAbstractEventDispatcher::instance(objectThread);
int timeLeft = qMax(info.interval - info.time.elapsed(), 0);
info.fixInterval = true;
ed->unregisterTimer(info.id);
ed->registerTimer(info.id, timeLeft, target);
#ifdef TIMERFIXER_DEBUG
printf("TimerFixer[%p] adjusting [%d] to %d\n", this, info.id, timeLeft);
#endif
}
}
WorkspacesInfo::WorkspacesInfo(QObject *parent) :
QObject(parent),
m_count(0),
m_current(0),
m_rows(0),
m_columns(0),
m_orientation(OrientationHorizontal),
m_startingCorner(CornerTopLeft)
{
WorkspacesInfo::internX11Atoms();
/* Setup an low-level event filter so that we can get X11 events directly,
then ask X11 to notify us of property changes on the root window. This
will include notiication on workspace geometry changes.
*/
QAbstractEventDispatcher *dispatcher = QAbstractEventDispatcher::instance();
oldEventFilter = dispatcher->setEventFilter(WorkspacesInfo::globalEventFilter);
XSelectInput(QX11Info::display(), QX11Info::appRootWindow(), PropertyChangeMask);
updateWorkspaceGeometry();
updateCurrentWorkspace();
}
LRESULT QT_WIN_CALLBACK qt_internal_proc(HWND hwnd, UINT message, WPARAM wp, LPARAM lp)
{
if (message == WM_NCCREATE)
return true;
MSG msg;
msg.hwnd = hwnd;
msg.message = message;
msg.wParam = wp;
msg.lParam = lp;
QAbstractEventDispatcher* dispatcher = QAbstractEventDispatcher::instance();
long result;
if (!dispatcher) {
if (message == WM_TIMER)
KillTimer(hwnd, wp);
return 0;
} else if (dispatcher->filterNativeEvent(QByteArrayLiteral("windows_dispatcher_MSG"), &msg, &result)) {
return result;
}
#ifdef GWLP_USERDATA
QEventDispatcherWin32 *q = (QEventDispatcherWin32 *) GetWindowLongPtr(hwnd, GWLP_USERDATA);
#else
QEventDispatcherWin32 *q = (QEventDispatcherWin32 *) GetWindowLong(hwnd, GWL_USERDATA);
#endif
QEventDispatcherWin32Private *d = 0;
if (q != 0)
d = q->d_func();
if (message == WM_QT_SOCKETNOTIFIER) {
// socket notifier message
int type = -1;
switch (WSAGETSELECTEVENT(lp)) {
case FD_READ:
case FD_ACCEPT:
type = 0;
break;
case FD_WRITE:
case FD_CONNECT:
type = 1;
break;
case FD_OOB:
type = 2;
break;
case FD_CLOSE:
type = 3;
break;
}
if (type >= 0) {
Q_ASSERT(d != 0);
QSNDict *sn_vec[4] = { &d->sn_read, &d->sn_write, &d->sn_except, &d->sn_read };
QSNDict *dict = sn_vec[type];
QSockNot *sn = dict ? dict->value(wp) : 0;
if (sn) {
if (type < 3) {
QEvent event(QEvent::SockAct);
QCoreApplication::sendEvent(sn->obj, &event);
} else {
QEvent event(QEvent::SockClose);
QCoreApplication::sendEvent(sn->obj, &event);
}
}
}
return 0;
} else if (message == WM_QT_SENDPOSTEDEVENTS
// we also use a Windows timer to send posted events when the message queue is full
|| (message == WM_TIMER
&& d->sendPostedEventsWindowsTimerId != 0
&& wp == (uint)d->sendPostedEventsWindowsTimerId)) {
const int localSerialNumber = d->serialNumber.load();
if (localSerialNumber != d->lastSerialNumber) {
d->lastSerialNumber = localSerialNumber;
q->sendPostedEvents();
}
return 0;
} else if (message == WM_TIMER) {
Q_ASSERT(d != 0);
d->sendTimerEvent(wp);
return 0;
}
return DefWindowProc(hwnd, message, wp, lp);
}
QT_BEGIN_NAMESPACE
/*!
\class QBasicTimer
\inmodule QtCore
\brief The QBasicTimer class provides timer events for objects.
\ingroup events
This is a fast, lightweight, and low-level class used by Qt
internally. We recommend using the higher-level QTimer class
rather than this class if you want to use timers in your
applications. Note that this timer is a repeating timer that
will send subsequent timer events unless the stop() function is called.
To use this class, create a QBasicTimer, and call its start()
function with a timeout interval and with a pointer to a QObject
subclass. When the timer times out it will send a timer event to
the QObject subclass. The timer can be stopped at any time using
stop(). isActive() returns \c true for a timer that is running;
i.e. it has been started, has not reached the timeout time, and
has not been stopped. The timer's ID can be retrieved using
timerId().
The \l{widgets/wiggly}{Wiggly} example uses QBasicTimer to repaint
a widget at regular intervals.
\sa QTimer, QTimerEvent, QObject::timerEvent(), Timers, {Wiggly Example}
*/
/*!
\fn QBasicTimer::QBasicTimer()
Contructs a basic timer.
\sa start()
*/
/*!
\fn QBasicTimer::~QBasicTimer()
Destroys the basic timer.
*/
/*!
\fn bool QBasicTimer::isActive() const
Returns \c true if the timer is running and has not been stopped; otherwise
returns \c false.
\sa start(), stop()
*/
/*!
\fn int QBasicTimer::timerId() const
Returns the timer's ID.
\sa QTimerEvent::timerId()
*/
/*!
\fn void QBasicTimer::start(int msec, QObject *object)
Starts (or restarts) the timer with a \a msec milliseconds timeout. The
timer will be a Qt::CoarseTimer. See Qt::TimerType for information on the
different timer types.
The given \a object will receive timer events.
\sa stop(), isActive(), QObject::timerEvent(), Qt::CoarseTimer
*/
void QBasicTimer::start(int msec, QObject *obj)
{
QAbstractEventDispatcher *eventDispatcher = QAbstractEventDispatcher::instance();
if (Q_UNLIKELY(!eventDispatcher)) {
qWarning("QBasicTimer::start: QBasicTimer can only be used with threads started with QThread");
return;
}
if (Q_UNLIKELY(obj && obj->thread() != eventDispatcher->thread())) {
qWarning("QBasicTimer::start: Timers cannot be started from another thread");
return;
}
if (id) {
if (Q_LIKELY(eventDispatcher->unregisterTimer(id)))
QAbstractEventDispatcherPrivate::releaseTimerId(id);
else
qWarning("QBasicTimer::start: Stopping previous timer failed. Possibly trying to stop from a different thread");
}
id = 0;
if (obj)
id = eventDispatcher->registerTimer(msec, Qt::CoarseTimer, obj);
}
bool QObject::event(QEvent *e)
{
switch (e->type()) {
case QEvent::Timer:
timerEvent((QTimerEvent*) e);
break;
case QEvent::ChildAdded:
case QEvent::ChildPolished:
case QEvent::ChildRemoved:
childEvent((QChildEvent*)e);
break;
case QEvent::DeferredDelete:
delete this;
break;
case QEvent::MetaCall:
{
CSMetaCallEvent *metaCallEvent = dynamic_cast<CSMetaCallEvent *>(e);
QObject::SenderStruct currentSender;
currentSender.sender = const_cast<QObject*>(metaCallEvent->sender());
currentSender.signal_index = metaCallEvent->signal_index();
currentSender.ref = 1;
QObject::SenderStruct *previousSender = QObject::setCurrentSender(this, ¤tSender);
try {
metaCallEvent->placeMetaCall(this);
} catch(...) {
QObject::resetCurrentSender(this, ¤tSender, previousSender);
throw;
}
QObject::resetCurrentSender(this, ¤tSender, previousSender);
break;
}
case QEvent::ThreadChange:
{
QThreadData *threadData = m_threadData;
QAbstractEventDispatcher *eventDispatcher = threadData->eventDispatcher;
if (eventDispatcher) {
QList< std::pair<int, int> > timerList = eventDispatcher->registeredTimers(this);
if (! timerList.isEmpty()) {
// set m_inThreadChangeEvent to true tells the dispatcher not to release timer
// ids back to the pool (since the timer ids are moving to a new thread)
m_inThreadChangeEvent = true;
eventDispatcher->unregisterTimers(this);
m_inThreadChangeEvent = false;
// using csArgument directly since the datatype contains a comma
QMetaObject::invokeMethod(this, "internal_reregisterTimers", Qt::QueuedConnection,
CSArgument<QList< std::pair<int, int> > > (timerList) );
}
}
break;
}
default:
if (e->type() >= QEvent::User) {
customEvent(e);
break;
}
return false;
}
return true;
}
bool QX11Data::clipboardWaitForEvent(Window win, int type, XEvent *event, int timeout)
{
QElapsedTimer started;
started.start();
QElapsedTimer now = started;
if (QAbstractEventDispatcher::instance()->inherits("QtMotif")
|| QApplication::clipboard()->property("useEventLoopWhenWaiting").toBool()) {
if (waiting_for_data) {
Q_ASSERT(!"QClipboard: internal error, qt_xclb_wait_for_event recursed");
return false;
}
waiting_for_data = true;
has_captured_event = false;
capture_event_win = win;
capture_event_type = type;
QApplication::EventFilter old_event_filter =
qApp->setEventFilter(qt_x11_clipboard_event_filter);
do {
if (XCheckTypedWindowEvent(display, win, type, event)) {
waiting_for_data = false;
qApp->setEventFilter(old_event_filter);
return true;
}
XSync(X11->display, false);
usleep(50000);
now.start();
QEventLoop::ProcessEventsFlags flags(QEventLoop::ExcludeUserInputEvents
| QEventLoop::ExcludeSocketNotifiers
| QEventLoop::WaitForMoreEvents
| QEventLoop::X11ExcludeTimers);
QAbstractEventDispatcher *eventDispatcher = QAbstractEventDispatcher::instance();
eventDispatcher->processEvents(flags);
if (has_captured_event) {
waiting_for_data = false;
*event = captured_event;
qApp->setEventFilter(old_event_filter);
return true;
}
} while (started.msecsTo(now) < timeout);
waiting_for_data = false;
qApp->setEventFilter(old_event_filter);
} else {
do {
if (XCheckTypedWindowEvent(X11->display,win,type,event))
return true;
// process other clipboard events, since someone is probably requesting data from us
XEvent e;
if (XCheckIfEvent(X11->display, &e, checkForClipboardEvents, 0))
qApp->x11ProcessEvent(&e);
now.start();
XFlush(X11->display);
// sleep 50 ms, so we don't use up CPU cycles all the time.
struct timeval usleep_tv;
usleep_tv.tv_sec = 0;
usleep_tv.tv_usec = 50000;
select(0, 0, 0, 0, &usleep_tv);
} while (started.msecsTo(now) < timeout);
}
return false;
}
bool QWindowsContext::windowsProc(HWND hwnd, UINT message,
QtWindows::WindowsEventType et,
WPARAM wParam, LPARAM lParam, LRESULT *result)
{
*result = 0;
MSG msg;
msg.hwnd = hwnd; // re-create MSG structure
msg.message = message; // time and pt fields ignored
msg.wParam = wParam;
msg.lParam = lParam;
msg.pt.x = GET_X_LPARAM(lParam);
msg.pt.y = GET_Y_LPARAM(lParam);
// Run the native event filters.
long filterResult = 0;
QAbstractEventDispatcher* dispatcher = QAbstractEventDispatcher::instance();
if (dispatcher && dispatcher->filterNativeEvent(d->m_eventType, &msg, &filterResult)) {
*result = LRESULT(filterResult);
return true;
}
QWindowsWindow *platformWindow = findPlatformWindow(hwnd);
if (platformWindow) {
filterResult = 0;
if (QWindowSystemInterface::handleNativeEvent(platformWindow->window(), d->m_eventType, &msg, &filterResult)) {
*result = LRESULT(filterResult);
return true;
}
}
switch (et) {
case QtWindows::InputMethodStartCompositionEvent:
return QWindowsInputContext::instance()->startComposition(hwnd);
case QtWindows::InputMethodCompositionEvent:
return QWindowsInputContext::instance()->composition(hwnd, lParam);
case QtWindows::InputMethodEndCompositionEvent:
return QWindowsInputContext::instance()->endComposition(hwnd);
case QtWindows::InputMethodRequest:
return QWindowsInputContext::instance()->handleIME_Request(wParam, lParam, result);
case QtWindows::InputMethodOpenCandidateWindowEvent:
case QtWindows::InputMethodCloseCandidateWindowEvent:
// TODO: Release/regrab mouse if a popup has mouse grab.
return false;
case QtWindows::ClipboardEvent:
case QtWindows::DestroyEvent:
case QtWindows::UnknownEvent:
return false;
case QtWindows::AccessibleObjectFromWindowRequest:
#ifndef QT_NO_ACCESSIBILITY
return QWindowsAccessibility::handleAccessibleObjectFromWindowRequest(hwnd, wParam, lParam, result);
#else
return false;
#endif
case QtWindows::DisplayChangedEvent:
return d->m_screenManager.handleDisplayChange(wParam, lParam);
case QtWindows::SettingChangedEvent:
return d->m_screenManager.handleScreenChanges();
default:
break;
}
// Before CreateWindowEx() returns, some events are sent,
// for example WM_GETMINMAXINFO asking for size constraints for top levels.
// Pass on to current creation context
if (!platformWindow && !d->m_creationContext.isNull()) {
switch (et) {
#ifndef Q_OS_WINCE // maybe available on some SDKs revisit WM_GETMINMAXINFO
case QtWindows::QuerySizeHints:
d->m_creationContext->applyToMinMaxInfo(reinterpret_cast<MINMAXINFO *>(lParam));
return true;
#endif
case QtWindows::ResizeEvent:
d->m_creationContext->obtainedGeometry.setSize(QSize(GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)));
return true;
case QtWindows::MoveEvent:
d->m_creationContext->obtainedGeometry.moveTo(GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
return true;
case QtWindows::CalculateSize:
return false;
default:
break;
}
}
if (platformWindow) {
// Suppress events sent during DestroyWindow() for native children.
if (platformWindow->testFlag(QWindowsWindow::WithinDestroy))
return false;
if (QWindowsContext::verboseEvents > 1)
qDebug().nospace() << "Event window: " << platformWindow->window();
} else {
qWarning("%s: No Qt Window found for event 0x%x (%s), hwnd=0x%p.",
__FUNCTION__, message,
QWindowsGuiEventDispatcher::windowsMessageName(message), hwnd);
return false;
}
switch (et) {
case QtWindows::KeyDownEvent:
case QtWindows::KeyEvent:
case QtWindows::InputMethodKeyEvent:
case QtWindows::InputMethodKeyDownEvent:
return d->m_keyMapper.translateKeyEvent(platformWindow->window(), hwnd, msg, result);
case QtWindows::MoveEvent:
platformWindow->handleMoved();
return true;
case QtWindows::ResizeEvent:
platformWindow->handleResized((int)wParam);
return true;
#ifndef Q_OS_WINCE // maybe available on some SDKs revisit WM_GETMINMAXINFO
case QtWindows::QuerySizeHints:
platformWindow->getSizeHints(reinterpret_cast<MINMAXINFO *>(lParam));
return true;// maybe available on some SDKs revisit WM_NCCALCSIZE
case QtWindows::CalculateSize:
// NCCALCSIZE_PARAMS structure if wParam==TRUE
if (wParam && QWindowsContext::verboseWindows) {
const NCCALCSIZE_PARAMS *ncp = reinterpret_cast<NCCALCSIZE_PARAMS *>(lParam);
qDebug() << platformWindow->window() << *ncp;
}
break;
#endif
case QtWindows::ExposeEvent:
return platformWindow->handleWmPaint(hwnd, message, wParam, lParam);
case QtWindows::NonClientMouseEvent:
if (platformWindow->frameStrutEventsEnabled())
return d->m_mouseHandler.translateMouseEvent(platformWindow->window(), hwnd, et, msg, result);
break;
/* the mouse tracking on windows already handles the reset of the cursor
* and does not like somebody else handling it.
* on WINCE its necessary to handle this event to get the correct cursor
*/
#ifdef Q_OS_WINCE
case QtWindows::CursorEvent:
{
QWindowsWindow::baseWindowOf(platformWindow->window())->applyCursor();
return true;
}
#endif
case QtWindows::MouseWheelEvent:
case QtWindows::MouseEvent:
case QtWindows::LeaveEvent:
return d->m_mouseHandler.translateMouseEvent(platformWindow->window(), hwnd, et, msg, result);
case QtWindows::TouchEvent:
return d->m_mouseHandler.translateTouchEvent(platformWindow->window(), hwnd, et, msg, result);
case QtWindows::FocusInEvent: // see QWindowsWindow::requestActivateWindow().
case QtWindows::FocusOutEvent:
handleFocusEvent(et, platformWindow);
return true;
case QtWindows::ShowEvent:
platformWindow->handleShown();
return true;
case QtWindows::HideEvent:
platformWindow->handleHidden();
return true;
case QtWindows::CloseEvent:
QWindowSystemInterface::handleCloseEvent(platformWindow->window());
return true;
case QtWindows::ThemeChanged: // ### fixme: Compress these events?
if (QWindowsTheme *theme = QWindowsTheme::instance())
theme->windowsThemeChanged(platformWindow->window());
return true;
#ifndef Q_OS_WINCE
case QtWindows::ActivateWindowEvent:
if (platformWindow->testFlag(QWindowsWindow::BlockedByModal))
if (const QWindow *modalWindow = QGuiApplication::modalWindow())
QWindowsWindow::baseWindowOf(modalWindow)->alertWindow();
break;
#endif
#ifndef QT_NO_CONTEXTMENU
case QtWindows::ContextMenu:
handleContextMenuEvent(platformWindow->window(), msg);
return true;
#endif
default:
break;
}
return false;
}
bool QWindowsContext::windowsProc(HWND hwnd, UINT message,
QtWindows::WindowsEventType et,
WPARAM wParam, LPARAM lParam, LRESULT *result)
{
*result = 0;
MSG msg;
msg.hwnd = hwnd; // re-create MSG structure
msg.message = message; // time and pt fields ignored
msg.wParam = wParam;
msg.lParam = lParam;
msg.pt.x = msg.pt.y = 0;
if (et != QtWindows::CursorEvent && (et & (QtWindows::MouseEventFlag | QtWindows::NonClientEventFlag))) {
msg.pt.x = GET_X_LPARAM(lParam);
msg.pt.y = GET_Y_LPARAM(lParam);
// For non-client-area messages, these are screen coordinates (as expected
// in the MSG structure), otherwise they are client coordinates.
if (!(et & QtWindows::NonClientEventFlag)) {
ClientToScreen(msg.hwnd, &msg.pt);
}
} else {
#ifndef Q_OS_WINCE
GetCursorPos(&msg.pt);
#endif
}
// Run the native event filters.
long filterResult = 0;
QAbstractEventDispatcher* dispatcher = QAbstractEventDispatcher::instance();
if (dispatcher && dispatcher->filterNativeEvent(d->m_eventType, &msg, &filterResult)) {
*result = LRESULT(filterResult);
return true;
}
QWindowsWindow *platformWindow = findPlatformWindow(hwnd);
if (platformWindow) {
filterResult = 0;
if (QWindowSystemInterface::handleNativeEvent(platformWindow->window(), d->m_eventType, &msg, &filterResult)) {
*result = LRESULT(filterResult);
return true;
}
}
switch (et) {
case QtWindows::InputMethodStartCompositionEvent:
return QWindowsInputContext::instance()->startComposition(hwnd);
case QtWindows::InputMethodCompositionEvent:
return QWindowsInputContext::instance()->composition(hwnd, lParam);
case QtWindows::InputMethodEndCompositionEvent:
return QWindowsInputContext::instance()->endComposition(hwnd);
case QtWindows::InputMethodRequest:
return QWindowsInputContext::instance()->handleIME_Request(wParam, lParam, result);
case QtWindows::InputMethodOpenCandidateWindowEvent:
case QtWindows::InputMethodCloseCandidateWindowEvent:
// TODO: Release/regrab mouse if a popup has mouse grab.
return false;
case QtWindows::DestroyEvent:
if (platformWindow && !platformWindow->testFlag(QWindowsWindow::WithinDestroy)) {
qWarning() << "External WM_DESTROY received for " << platformWindow->window()
<< ", parent: " << platformWindow->window()->parent()
<< ", transient parent: " << platformWindow->window()->transientParent();
}
return false;
case QtWindows::ClipboardEvent:
return false;
case QtWindows::UnknownEvent:
return false;
case QtWindows::AccessibleObjectFromWindowRequest:
#ifndef QT_NO_ACCESSIBILITY
return QWindowsAccessibility::handleAccessibleObjectFromWindowRequest(hwnd, wParam, lParam, result);
#else
return false;
#endif
case QtWindows::DisplayChangedEvent:
return d->m_screenManager.handleDisplayChange(wParam, lParam);
case QtWindows::SettingChangedEvent:
return d->m_screenManager.handleScreenChanges();
default:
break;
}
// Before CreateWindowEx() returns, some events are sent,
// for example WM_GETMINMAXINFO asking for size constraints for top levels.
// Pass on to current creation context
if (!platformWindow && !d->m_creationContext.isNull()) {
switch (et) {
#ifndef Q_OS_WINCE // maybe available on some SDKs revisit WM_GETMINMAXINFO
case QtWindows::QuerySizeHints:
d->m_creationContext->applyToMinMaxInfo(reinterpret_cast<MINMAXINFO *>(lParam));
return true;
#endif
case QtWindows::ResizeEvent:
d->m_creationContext->obtainedGeometry.setSize(QSize(GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)));
return true;
case QtWindows::MoveEvent:
d->m_creationContext->obtainedGeometry.moveTo(GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
return true;
case QtWindows::CalculateSize:
return QWindowsGeometryHint::handleCalculateSize(d->m_creationContext->customMargins, msg, result);
case QtWindows::GeometryChangingEvent:
return QWindowsWindow::handleGeometryChangingMessage(&msg, d->m_creationContext->window,
d->m_creationContext->margins + d->m_creationContext->customMargins);
default:
break;
}
}
if (platformWindow) {
// Suppress events sent during DestroyWindow() for native children.
if (platformWindow->testFlag(QWindowsWindow::WithinDestroy))
return false;
if (QWindowsContext::verbose > 1)
qCDebug(lcQpaEvents) << "Event window: " << platformWindow->window();
} else {
qWarning("%s: No Qt Window found for event 0x%x (%s), hwnd=0x%p.",
__FUNCTION__, message,
QWindowsGuiEventDispatcher::windowsMessageName(message), hwnd);
return false;
}
switch (et) {
case QtWindows::KeyDownEvent:
case QtWindows::KeyEvent:
case QtWindows::InputMethodKeyEvent:
case QtWindows::InputMethodKeyDownEvent:
case QtWindows::KeyboardLayoutChangeEvent:
case QtWindows::AppCommandEvent:
#if !defined(Q_OS_WINCE) && !defined(QT_NO_SESSIONMANAGER)
return platformSessionManager()->isInteractionBlocked() ? true : d->m_keyMapper.translateKeyEvent(platformWindow->window(), hwnd, msg, result);
#else
return d->m_keyMapper.translateKeyEvent(platformWindow->window(), hwnd, msg, result);
#endif
case QtWindows::MoveEvent:
platformWindow->handleMoved();
return true;
case QtWindows::ResizeEvent:
platformWindow->handleResized((int)wParam);
return true;
#ifndef Q_OS_WINCE // maybe available on some SDKs revisit WM_GETMINMAXINFO
case QtWindows::QuerySizeHints:
platformWindow->getSizeHints(reinterpret_cast<MINMAXINFO *>(lParam));
return true;// maybe available on some SDKs revisit WM_NCCALCSIZE
case QtWindows::CalculateSize:
return QWindowsGeometryHint::handleCalculateSize(platformWindow->customMargins(), msg, result);
case QtWindows::NonClientHitTest:
return platformWindow->handleNonClientHitTest(QPoint(msg.pt.x, msg.pt.y), result);
case QtWindows::GeometryChangingEvent:
return platformWindow->QWindowsWindow::handleGeometryChanging(&msg);
#endif // !Q_OS_WINCE
case QtWindows::ExposeEvent:
return platformWindow->handleWmPaint(hwnd, message, wParam, lParam);
case QtWindows::NonClientMouseEvent:
if (platformWindow->frameStrutEventsEnabled())
#if !defined(Q_OS_WINCE) && !defined(QT_NO_SESSIONMANAGER)
return platformSessionManager()->isInteractionBlocked() ? true : d->m_mouseHandler.translateMouseEvent(platformWindow->window(), hwnd, et, msg, result);
#else
return d->m_mouseHandler.translateMouseEvent(platformWindow->window(), hwnd, et, msg, result);
#endif
break;
/* the mouse tracking on windows already handles the reset of the cursor
* and does not like somebody else handling it.
* on WINCE its necessary to handle this event to get the correct cursor
*/
#ifdef Q_OS_WINCE
case QtWindows::CursorEvent:
{
QWindowsWindow::baseWindowOf(platformWindow->window())->applyCursor();
return true;
}
#endif
case QtWindows::MouseWheelEvent:
case QtWindows::MouseEvent:
case QtWindows::LeaveEvent:
#if !defined(Q_OS_WINCE) && !defined(QT_NO_SESSIONMANAGER)
return platformSessionManager()->isInteractionBlocked() ? true : d->m_mouseHandler.translateMouseEvent(platformWindow->window(), hwnd, et, msg, result);
#else
return d->m_mouseHandler.translateMouseEvent(platformWindow->window(), hwnd, et, msg, result);
#endif
case QtWindows::TouchEvent:
#if !defined(Q_OS_WINCE) && !defined(QT_NO_SESSIONMANAGER)
return platformSessionManager()->isInteractionBlocked() ? true : d->m_mouseHandler.translateTouchEvent(platformWindow->window(), hwnd, et, msg, result);
#else
return d->m_mouseHandler.translateTouchEvent(platformWindow->window(), hwnd, et, msg, result);
#endif
case QtWindows::FocusInEvent: // see QWindowsWindow::requestActivateWindow().
case QtWindows::FocusOutEvent:
handleFocusEvent(et, platformWindow);
return true;
case QtWindows::ShowEventOnParentRestoring: // QTBUG-40696, prevent Windows from re-showing hidden transient children (dialogs).
if (!platformWindow->window()->isVisible()) {
*result = 0;
return true;
}
break;
case QtWindows::HideEvent:
platformWindow->handleHidden();
return false;// Indicate transient children should be hidden by windows (SW_PARENTCLOSING)
case QtWindows::CloseEvent:
QWindowSystemInterface::handleCloseEvent(platformWindow->window());
return true;
case QtWindows::ThemeChanged: {
// Switch from Aero to Classic changes margins.
const Qt::WindowFlags flags = platformWindow->window()->flags();
if ((flags & Qt::WindowType_Mask) != Qt::Desktop && !(flags & Qt::FramelessWindowHint))
platformWindow->setFlag(QWindowsWindow::FrameDirty);
if (QWindowsTheme *theme = QWindowsTheme::instance())
theme->windowsThemeChanged(platformWindow->window());
return true;
}
case QtWindows::CompositionSettingsChanged:
platformWindow->handleCompositionSettingsChanged();
return true;
#ifndef Q_OS_WINCE
case QtWindows::ActivateWindowEvent:
if (platformWindow->window()->flags() & Qt::WindowDoesNotAcceptFocus) {
*result = LRESULT(MA_NOACTIVATE);
return true;
}
#ifndef QT_NO_TABLETEVENT
if (!d->m_tabletSupport.isNull())
d->m_tabletSupport->notifyActivate();
#endif // !QT_NO_TABLETEVENT
if (platformWindow->testFlag(QWindowsWindow::BlockedByModal))
if (const QWindow *modalWindow = QGuiApplication::modalWindow())
QWindowsWindow::baseWindowOf(modalWindow)->alertWindow();
break;
case QtWindows::MouseActivateWindowEvent:
if (platformWindow->window()->flags() & Qt::WindowDoesNotAcceptFocus) {
*result = LRESULT(MA_NOACTIVATE);
return true;
}
break;
#endif
#ifndef QT_NO_CONTEXTMENU
case QtWindows::ContextMenu:
return handleContextMenuEvent(platformWindow->window(), msg);
#endif
case QtWindows::WhatsThisEvent: {
#ifndef QT_NO_WHATSTHIS
QWindowSystemInterface::handleEnterWhatsThisEvent();
return true;
#endif
} break;
#if !defined(Q_OS_WINCE) && !defined(QT_NO_SESSIONMANAGER)
case QtWindows::QueryEndSessionApplicationEvent: {
QWindowsSessionManager *sessionManager = platformSessionManager();
if (sessionManager->isActive()) { // bogus message from windows
*result = sessionManager->wasCanceled() ? 0 : 1;
return true;
}
sessionManager->setActive(true);
sessionManager->blocksInteraction();
sessionManager->clearCancellation();
QGuiApplicationPrivate *qGuiAppPriv = static_cast<QGuiApplicationPrivate*>(QObjectPrivate::get(qApp));
qGuiAppPriv->commitData();
if (lParam & ENDSESSION_LOGOFF)
fflush(NULL);
*result = sessionManager->wasCanceled() ? 0 : 1;
return true;
}
case QtWindows::EndSessionApplicationEvent: {
QWindowsSessionManager *sessionManager = platformSessionManager();
sessionManager->setActive(false);
sessionManager->allowsInteraction();
bool endsession = (bool) wParam;
// we receive the message for each toplevel window included internal hidden ones,
// but the aboutToQuit signal should be emitted only once.
QGuiApplicationPrivate *qGuiAppPriv = static_cast<QGuiApplicationPrivate*>(QObjectPrivate::get(qApp));
if (endsession && !qGuiAppPriv->aboutToQuitEmitted) {
qGuiAppPriv->aboutToQuitEmitted = true;
int index = QGuiApplication::staticMetaObject.indexOfSignal("aboutToQuit()");
qApp->qt_metacall(QMetaObject::InvokeMetaMethod, index,0);
// since the process will be killed immediately quit() has no real effect
QGuiApplication::quit();
}
return true;
}
#endif // !defined(Q_OS_WINCE) && !defined(QT_NO_SESSIONMANAGER)
default:
break;
}
return false;
}
/*!
Destroys the native event filter.
This automatically removes it from the application.
*/
QAbstractNativeEventFilter::~QAbstractNativeEventFilter()
{
QAbstractEventDispatcher *eventDispatcher = QAbstractEventDispatcher::instance();
if (eventDispatcher)
eventDispatcher->removeNativeEventFilter(this);
}
