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-rw-r--r--src/gui/kernel/qapplication.cpp4
-rw-r--r--src/gui/kernel/qapplication_mac.mm26
-rw-r--r--src/gui/kernel/qapplication_p.h6
-rw-r--r--src/gui/kernel/qeventdispatcher_mac.mm425
-rw-r--r--src/gui/kernel/qeventdispatcher_mac_p.h26
-rw-r--r--src/gui/kernel/qwidget_mac.mm14
6 files changed, 308 insertions, 193 deletions
diff --git a/src/gui/kernel/qapplication.cpp b/src/gui/kernel/qapplication.cpp
index fea3e2dae..df85809ff 100644
--- a/src/gui/kernel/qapplication.cpp
+++ b/src/gui/kernel/qapplication.cpp
@@ -2311,10 +2311,6 @@ bool QApplication::event(QEvent *e)
} else if (te->timerId() == d->toolTipFallAsleep.timerId()) {
d->toolTipFallAsleep.stop();
}
-#ifdef QT_MAC_USE_COCOA
- } else if (e->type() == QEvent::CocoaRequestModal) {
- d->_q_runAppModalWindow();
-#endif
}
return QCoreApplication::event(e);
}
diff --git a/src/gui/kernel/qapplication_mac.mm b/src/gui/kernel/qapplication_mac.mm
index 5b503b35d..0c1789293 100644
--- a/src/gui/kernel/qapplication_mac.mm
+++ b/src/gui/kernel/qapplication_mac.mm
@@ -1409,13 +1409,8 @@ void QApplicationPrivate::enterModal_sys(QWidget *widget)
qt_button_down = 0;
#ifdef QT_MAC_USE_COCOA
- if (!qt_mac_is_macsheet(widget)) {
- // Add a new, empty (null), NSModalSession to the stack.
- // The next time we spin the event dispatcher, it will
- // check the stack, and recurse into a modal session for it:
- QCocoaModalSessionInfo info = {widget, 0};
- QEventDispatcherMacPrivate::cocoaModalSessionStack.push(info);
- }
+ if (!qt_mac_is_macsheet(widget))
+ QEventDispatcherMacPrivate::beginModalSession(widget);
#endif
}
@@ -1441,7 +1436,7 @@ void QApplicationPrivate::leaveModal_sys(QWidget *widget)
}
#ifdef QT_MAC_USE_COCOA
if (!qt_mac_is_macsheet(widget))
- QEventDispatcherMacPrivate::rebuildModalSessionStack(true);
+ QEventDispatcherMacPrivate::endModalSession(widget);
#endif
}
#ifdef DEBUG_MODAL_EVENTS
@@ -1452,21 +1447,6 @@ void QApplicationPrivate::leaveModal_sys(QWidget *widget)
qt_event_request_menubarupdate();
}
-#if defined(QT_MAC_USE_COCOA)
-void QApplicationPrivate::_q_runAppModalWindow()
-{
- if (QEventDispatcherMacPrivate::blockCocoaRequestModal) {
- // Just postpone the event until the event dispatcher tells
- // us (by releasing the block) that it is OK to recurse into
- // a new event loop for our non-execing modal window:
- qApp->postEvent(qApp, new QEvent(QEvent::CocoaRequestModal));
- } else {
- // Recurse into a new event loop for the current app modal window:
- threadData->eventDispatcher->processEvents(QEventLoop::DialogExec);
- }
-}
-#endif
-
QWidget *QApplicationPrivate::tryModalHelper_sys(QWidget *top)
{
#ifndef QT_MAC_USE_COCOA
diff --git a/src/gui/kernel/qapplication_p.h b/src/gui/kernel/qapplication_p.h
index c90ebfef1..5d409f47b 100644
--- a/src/gui/kernel/qapplication_p.h
+++ b/src/gui/kernel/qapplication_p.h
@@ -484,12 +484,6 @@ public:
void _q_alertTimeOut();
QHash<QWidget *, QTimer *> alertTimerHash;
#endif
-#if defined(QT_MAC_USE_COCOA)
- void _q_runAppModalWindow();
-#endif
-#if defined(QT_MAC_USE_COCOA)
- void _q_runModalWindow();
-#endif
#ifndef QT_NO_STYLE_STYLESHEET
static QString styleSheet;
#endif
diff --git a/src/gui/kernel/qeventdispatcher_mac.mm b/src/gui/kernel/qeventdispatcher_mac.mm
index 2e454790b..efe6375a1 100644
--- a/src/gui/kernel/qeventdispatcher_mac.mm
+++ b/src/gui/kernel/qeventdispatcher_mac.mm
@@ -497,6 +497,40 @@ static bool IsMouseOrKeyEvent( NSEvent* event )
}
#endif
+static inline void qt_mac_waitForMoreEvents()
+{
+#ifndef QT_MAC_USE_COCOA
+ while(CFRunLoopRunInMode(kCFRunLoopDefaultMode, 1.0e20, true) == kCFRunLoopRunTimedOut);
+#else
+ // If no event exist in the cocoa event que, wait
+ // (and free up cpu time) until at least one event occur.
+ // This implementation is a bit on the edge, but seems to
+ // work fine:
+ NSEvent* event = [NSApp nextEventMatchingMask:NSAnyEventMask
+ untilDate:[NSDate distantFuture]
+ inMode:NSDefaultRunLoopMode
+ dequeue:YES];
+ if (event)
+ [NSApp postEvent:event atStart:YES];
+#endif
+}
+
+#ifdef QT_MAC_USE_COCOA
+static inline void qt_mac_waitForMoreModalSessionEvents()
+{
+ // If no event exist in the cocoa event que, wait
+ // (and free up cpu time) until at least one event occur.
+ // This implementation is a bit on the edge, but seems to
+ // work fine:
+ NSEvent* event = [NSApp nextEventMatchingMask:NSAnyEventMask
+ untilDate:[NSDate distantFuture]
+ inMode:NSModalPanelRunLoopMode
+ dequeue:YES];
+ if (event)
+ [NSApp postEvent:event atStart:YES];
+}
+#endif
+
bool QEventDispatcherMac::processEvents(QEventLoop::ProcessEventsFlags flags)
{
Q_D(QEventDispatcherMac);
@@ -515,55 +549,42 @@ bool QEventDispatcherMac::processEvents(QEventLoop::ProcessEventsFlags flags)
QMacCocoaAutoReleasePool pool;
NSEvent* event = 0;
- if (flags & QEventLoop::DialogExec || flags & QEventLoop::EventLoopExec) {
- // The point of the CocoaRequestModal event is to make sure that a
- // non-execed app modal window recurses into it's own dialog exec
- // once cocoa is spinning the event loop for us (e.g on top of [NSApp run]).
- // We expect only one event to notify us about this, regardless of how many
- // widgets that are waiting to be modal. So we remove all other pending
- // events, if any. And since cocoa will now take over event processing for us,
- // we allow new app modal widgets to recurse on top of us, hence the release of
- // the block:
- QBoolBlocker block(d->blockCocoaRequestModal, false);
- QCoreApplication::removePostedEvents(qApp, QEvent::CocoaRequestModal);
-
- if (NSModalSession session = d->activeModalSession())
- while ([NSApp runModalSession:session] == NSRunContinuesResponse) {
- // runModalSession will not wait for events, so we do it
- // ourselves (otherwise we would spend 100% CPU inside this loop):
- event = [NSApp nextEventMatchingMask:NSAnyEventMask
- untilDate:[NSDate distantFuture] inMode:NSModalPanelRunLoopMode dequeue:YES];
- if (event)
- [NSApp postEvent:event atStart:YES];
- }
- else
+ // If Qt is used as a plugin, or just added into a native cocoa
+ // application, we should not run or stop NSApplication;
+ // This will be done from outside Qt.
+ // And if processEvents is called manually (rather than from QEventLoop), we
+ // cannot enter a tight loop and block the call, but instead return after one flush:
+ bool canExec_3rdParty = d->nsAppRunCalledByQt || ![NSApp isRunning];
+ bool canExec_Qt = flags & QEventLoop::DialogExec || flags & QEventLoop::EventLoopExec;
+
+ if (canExec_Qt && canExec_3rdParty) {
+ // We can use exec-mode, meaning that we can stay in a tight loop until
+ // interrupted. This is mostly an optimization, but it also allow us
+ // to use [NSApp run], which is the recommended way of running applications
+ // in cocoa. [NSApp run] should be called at least once for any cocoa app.
+ if (NSModalSession session = d->currentModalSession()) {
+ QBoolBlocker execGuard(d->currentExecIsNSAppRun, false);
+ while (!d->interrupt && [NSApp runModalSession:session] == NSRunContinuesResponse)
+ qt_mac_waitForMoreModalSessionEvents();
+ } else {
+ d->nsAppRunCalledByQt = true;
+ QBoolBlocker execGuard(d->currentExecIsNSAppRun, true);
[NSApp run];
-
- d->rebuildModalSessionStack(false);
+ }
retVal = true;
} else do {
- // Since we now are going to spin the event loop just _one_ round
- // we need to block all incoming CocoaRequestModal events to ensure
- // that we don't recurse into a new exec-ing event loop while doing
- // so (and as such, 'hang' the thread inside the recursion):
- QBoolBlocker block(d->blockCocoaRequestModal, true);
+ // INVARIANT: We cannot block the thread (and run in a tight loop).
+ // Instead we will process all current pending events and return.
bool mustRelease = false;
if (!(flags & QEventLoop::ExcludeUserInputEvents) && !d->queuedUserInputEvents.isEmpty()) {
- // process a pending user input event
+ // Process a pending user input event
mustRelease = true;
event = static_cast<NSEvent *>(d->queuedUserInputEvents.takeFirst());
} else {
- if (NSModalSession session = d->activeModalSession()) {
- // There's s a modal widget showing, run it's session:
- if (flags & QEventLoop::WaitForMoreEvents) {
- // Wait for at least one event
- // before spinning the session:
- event = [NSApp nextEventMatchingMask:NSAnyEventMask
- untilDate:[NSDate distantFuture] inMode:NSModalPanelRunLoopMode dequeue:YES];
- if (event)
- [NSApp postEvent:event atStart:YES];
- }
+ if (NSModalSession session = d->currentModalSession()) {
+ if (flags & QEventLoop::WaitForMoreEvents)
+ qt_mac_waitForMoreModalSessionEvents();
[NSApp runModalSession:session];
retVal = true;
break;
@@ -634,41 +655,35 @@ bool QEventDispatcherMac::processEvents(QEventLoop::ProcessEventsFlags flags)
&& (flags & QEventLoop::WaitForMoreEvents));
if (canWait) {
// INVARIANT: We haven't processed any events yet. And we're told
- // to stay inside this function until at least one event is processed
- // (WaitForMoreEvents). So we wait on the window server:
-#ifndef QT_MAC_USE_COCOA
- while(CFRunLoopRunInMode(kCFRunLoopDefaultMode, 1.0e20, true) == kCFRunLoopRunTimedOut);
-#else
- QMacCocoaAutoReleasePool pool;
- NSEvent *manualEvent = [NSApp nextEventMatchingMask:NSAnyEventMask
- untilDate:[NSDate distantFuture] inMode:NSDefaultRunLoopMode
- dequeue:YES];
- if (manualEvent)
- [NSApp sendEvent:manualEvent];
-#endif
+ // to stay inside this function until at least one event is processed.
+ qt_mac_waitForMoreEvents();
flags &= ~QEventLoop::WaitForMoreEvents;
} else {
- // Done with event processing for now. Leave the function:
+ // Done with event processing for now.
+ // Leave the function:
break;
}
}
- // Because pending deffered-delete events are only sendt after
- // returning from the loop level they were posted in, we schedule
- // an extra wakup to force the _current_ run loop to process them (in
- // case the application stands idle waiting for the delete event):
- wakeUp();
+#ifdef QT_MAC_USE_COCOA
+ // In case we _now_ process events using [NSApp run], we need to stop it to
+ // ensure that:
+ // 1. the QEventLoop that called us is still executing, or
+ // 2. we have a modal session that needs to be spun instead.
+ // In case this is a plain call to processEvents (perhaps from a loop)
+ // from the application (rather than from a QEventLoop), we delay the
+ // interrupting until we/ actually enter a lower loop level (hence the
+ // deffered delete of the object below):
+ QtMacInterruptDispatcherHelp::interruptLater();
+#endif
- if (d->interrupt){
- // We restart NSApplication by first stopping it, and then call 'run'
- // again (NSApplication is actually already stopped, hence the need
- // for a restart, but calling stop again will also make the call
- // return from the current recursion). When the call returns to
- // QEventLoop (mind, not from this recursion, but from the one we're
- // about to stop), it will just call QEventDispatcherMac::processEvents()
- // again.
+ if (d->interrupt) {
+ // We should continue to leave all recursion to processEvents until
+ // processEvents is called again (e.g. from a QEventLoop that
+ // was not yet told to quit:
interrupt();
}
+
return retVal;
}
@@ -700,104 +715,169 @@ bool QEventDispatcherMacPrivate::blockSendPostedEvents = false;
#ifdef QT_MAC_USE_COCOA
QStack<QCocoaModalSessionInfo> QEventDispatcherMacPrivate::cocoaModalSessionStack;
-bool QEventDispatcherMacPrivate::blockCocoaRequestModal = false;
+bool QEventDispatcherMacPrivate::currentExecIsNSAppRun = false;
+bool QEventDispatcherMacPrivate::nsAppRunCalledByQt = false;
+NSModalSession QEventDispatcherMacPrivate::currentModalSessionCached = 0;
-static void qt_mac_setChildDialogsResponsive(QWidget *widget, bool responsive)
+int QEventDispatcherMacPrivate::activeModalSessionCount()
{
+ // Returns the number of modal sessions created
+ // (and not just pushed onto the stack, pending to be created)
+ int count = 0;
+ for (int i=cocoaModalSessionStack.size()-1; i>=0; --i) {
+ QCocoaModalSessionInfo &info = cocoaModalSessionStack[i];
+ if (info.session)
+ ++count;
+ }
+ return count;
+}
+
+void QEventDispatcherMacPrivate::temporarilyStopAllModalSessions()
+{
+ // Stop all created modal session, and as such, make then
+ // pending again. The next call to currentModalSession will
+ // recreate the session on top again:
+ int stackSize = cocoaModalSessionStack.size();
+ for (int i=stackSize-1; i>=0; --i) {
+ QCocoaModalSessionInfo &info = cocoaModalSessionStack[i];
+ if (info.session) {
+ [NSApp endModalSession:info.session];
+ info.session = 0;
+ }
+ }
+ currentModalSessionCached = 0;
+}
+
+NSModalSession QEventDispatcherMacPrivate::currentModalSession()
+{
+ // If we have one or more modal windows, this function will create
+ // a session for each of those, and return the one for the top.
+ if (currentModalSessionCached)
+ return currentModalSessionCached;
+
+ if (cocoaModalSessionStack.isEmpty())
+ return 0;
+
+ // Since this code will end up calling our Qt event handler
+ // (also from beginModalSessionForWindow), we need to block
+ // that to avoid side effects of events beeing delivered:
+ QBoolBlocker block(blockSendPostedEvents, true);
+
+ if (![NSApp isRunning]) {
+ // Sadly, we need to introduce this little event flush
+ // to stop dialogs from blinking/poping in front if a
+ // modal session restart was needed:
+ while (NSEvent *event = [NSApp nextEventMatchingMask:NSAnyEventMask
+ untilDate:nil
+ inMode:NSDefaultRunLoopMode
+ dequeue: YES]) {
+ qt_mac_send_event(0, event, 0);
+ }
+ }
+
+ int sessionCount = cocoaModalSessionStack.size();
+ for (int i=0; i<sessionCount; ++i) {
+ QCocoaModalSessionInfo &info = cocoaModalSessionStack[i];
+ if (!info.widget)
+ continue;
+ if (info.widget->testAttribute(Qt::WA_DontShowOnScreen))
+ continue;
+ if (!info.session) {
+ QMacCocoaAutoReleasePool pool;
+ NSWindow *window = qt_mac_window_for(info.widget);
+ if (!window)
+ continue;
+ info.session = [NSApp beginModalSessionForWindow:window];
+ }
+ currentModalSessionCached = info.session;
+ }
+
+ return currentModalSessionCached;
+}
+
+static void setChildrenWorksWhenModal(QWidget *widget, bool worksWhenModal)
+{
+ // For NSPanels (but not NSWindows, sadly), we can set the flag
+ // worksWhenModal, so that they are active even when they are not modal.
QList<QDialog *> dialogs = widget->findChildren<QDialog *>();
for (int i=0; i<dialogs.size(); ++i){
NSWindow *window = qt_mac_window_for(dialogs[i]);
if (window && [window isKindOfClass:[NSPanel class]]) {
- [static_cast<NSPanel *>(window) setWorksWhenModal:responsive];
- if (responsive && dialogs[i]->isVisible()){
+ [static_cast<NSPanel *>(window) setWorksWhenModal:worksWhenModal];
+ if (worksWhenModal && dialogs[i]->isVisible()){
[window orderFront:window];
}
}
}
}
-NSModalSession QEventDispatcherMacPrivate::activeModalSession()
+void QEventDispatcherMacPrivate::updateChildrenWorksWhenModal()
{
- // Create (if needed) and return the modal session
- // for the top-most modal dialog, if any:
- if (cocoaModalSessionStack.isEmpty())
- return 0;
- QCocoaModalSessionInfo &info = cocoaModalSessionStack.last();
- if (!info.widget)
- return 0;
- if (info.widget->testAttribute(Qt::WA_DontShowOnScreen)){
- // INVARIANT: We have a modal widget, but it's not visible on screen.
- // This will e.g. be true for native dialogs. Make the dialog children
- // of the previous modal dialog unresponsive, so that the current dialog
- // (native or not) is the only reponsive dialog on screen:
- int size = cocoaModalSessionStack.size();
+ // Make the dialog children of the widget
+ // active. And make the dialog children of
+ // the previous modal dialog unactive again:
+ int size = cocoaModalSessionStack.size();
+ if (size > 0){
+ if (QWidget *prevModal = cocoaModalSessionStack[size-1].widget)
+ setChildrenWorksWhenModal(prevModal, true);
if (size > 1){
if (QWidget *prevModal = cocoaModalSessionStack[size-2].widget)
- qt_mac_setChildDialogsResponsive(prevModal, false);
+ setChildrenWorksWhenModal(prevModal, false);
}
- return 0;
}
+}
- if (!info.session) {
- QMacCocoaAutoReleasePool pool;
- NSWindow *window = qt_mac_window_for(info.widget);
- if (!window)
- return 0;
- // 'beginModalSessionForWindow' will give the event loop a spin, and as
- // such, deliver Qt events. This might lead to inconsistent behaviour
- // (especially if CocoaRequestModal is delivered), so we need to block:
- QBoolBlocker block(blockSendPostedEvents, true);
- info.session = [NSApp beginModalSessionForWindow:window];
- // Make the dialog children of the current modal dialog
- // responsive. And make the dialog children of
- // the previous modal dialog unresponsive again:
- qt_mac_setChildDialogsResponsive(info.widget, true);
- int size = cocoaModalSessionStack.size();
- if (size > 1){
- if (QWidget *prevModal = cocoaModalSessionStack[size-2].widget)
- qt_mac_setChildDialogsResponsive(prevModal, false);
- }
- }
- return info.session;
+void QEventDispatcherMacPrivate::beginModalSession(QWidget *widget)
+{
+ // Add a new, empty (null), NSModalSession to the stack.
+ // It will become active the next time QEventDispatcher::processEvents is called.
+ // A QCocoaModalSessionInfo is considered pending to become active if the widget pointer
+ // is non-zero, and the session pointer is zero (it will become active upon a call to
+ // currentModalSession). A QCocoaModalSessionInfo is considered pending to be stopped if
+ // the widget pointer is zero, and the session pointer is non-zero (it will be fully
+ // stopped in endModalSession().
+ QCocoaModalSessionInfo info = {widget, 0};
+ cocoaModalSessionStack.push(info);
+ updateChildrenWorksWhenModal();
+ currentModalSessionCached = 0;
}
-void QEventDispatcherMacPrivate::rebuildModalSessionStack(bool pop)
+void QEventDispatcherMacPrivate::endModalSession(QWidget *widget)
{
- // Calling [NSApp stopModal], or [NSApp stop], will stop all modal dialogs
- // in one go. So to to not confuse cocoa, we need to stop all our modal
- // sessions as well. QMacEventDispatcher will make them modal again
- // in the correct order as long as they are left on the cocoaModalSessionStack
- // and a CocoaRequestModal is posted:
- if (cocoaModalSessionStack.isEmpty())
- return;
+ // Mark all sessions attached to widget as pending to be stopped. We do this
+ // by setting the widget pointer to zero, but leave the session pointer.
+ // We don't tell cocoa to stop any sessions just yet, because cocoa only understands
+ // when we stop the _current_ modal session (which is the session on top of
+ // the stack, and might not belong to 'widget').
+ int stackSize = cocoaModalSessionStack.size();
+ for (int i=stackSize-1; i>=0; --i) {
+ QCocoaModalSessionInfo &info = cocoaModalSessionStack[i];
+ if (info.widget == widget)
+ info.widget = 0;
+ }
- QMacCocoaAutoReleasePool pool;
- [NSApp stopModal];
- [NSApp postEvent:[NSEvent otherEventWithType:NSApplicationDefined location:NSZeroPoint
- modifierFlags:0 timestamp:0. windowNumber:0 context:0
- subtype:SHRT_MAX data1:0 data2:0] atStart:NO];
+ // Now we stop, and remove, all sessions marked as pending
+ // to be stopped on _top_ of the stack, if any:
+ bool needToInterruptEventDispatcher = false;
+ bool needToUpdateChildrenWorksWhenModal = false;
- for (int i=0; i<cocoaModalSessionStack.size(); ++i){
+ for (int i=stackSize-1; i>=0; --i) {
QCocoaModalSessionInfo &info = cocoaModalSessionStack[i];
+ if (info.widget)
+ break;
+ cocoaModalSessionStack.remove(i);
+ needToUpdateChildrenWorksWhenModal = true;
+ currentModalSessionCached = 0;
if (info.session) {
[NSApp endModalSession:info.session];
- info.session = 0;
+ needToInterruptEventDispatcher = true;
}
}
- if (pop) {
- QCocoaModalSessionInfo info = cocoaModalSessionStack.pop();
- if (info.widget)
- qt_mac_setChildDialogsResponsive(info.widget, false);
- }
-
- if (!cocoaModalSessionStack.isEmpty()) {
- // Since we now have pending modal sessions again, make
- // sure that we enter modal for the one on the top later:
- qApp->postEvent(qApp, new QEvent(QEvent::CocoaRequestModal));
- } else {
- QCoreApplication::removePostedEvents(qApp, QEvent::CocoaRequestModal);
- }
+ if (needToUpdateChildrenWorksWhenModal)
+ updateChildrenWorksWhenModal();
+ if (needToInterruptEventDispatcher)
+ QEventDispatcherMac::instance()->interrupt();
}
#endif
@@ -858,27 +938,29 @@ void QEventDispatcherMacPrivate::postedEventsSourcePerformCallback(void *info)
}
}
-#ifdef QT_MAC_USE_COCOA
-static void stopNSApp()
-{
- QMacCocoaAutoReleasePool pool;
- static const short NSAppShouldStopForQt = SHRT_MAX;
- [NSApp stop:NSApp];
- [NSApp postEvent:[NSEvent otherEventWithType:NSApplicationDefined location:NSZeroPoint
- modifierFlags:0 timestamp:0. windowNumber:0 context:0
- subtype:NSAppShouldStopForQt data1:0 data2:0] atStart:NO];
-}
-#endif
-
void QEventDispatcherMac::interrupt()
{
Q_D(QEventDispatcherMac);
d->interrupt = true;
wakeUp();
+
#ifndef QT_MAC_USE_COCOA
CFRunLoopStop(mainRunLoop());
#else
- stopNSApp();
+ QMacCocoaAutoReleasePool pool;
+ // In case we wait for more events inside
+ // processEvents (or NSApp run), post a dummy to wake it up:
+ static const short NSAppShouldStopForQt = SHRT_MAX;
+ [NSApp postEvent:[NSEvent otherEventWithType:NSApplicationDefined location:NSZeroPoint
+ modifierFlags:0 timestamp:0. windowNumber:0 context:0
+ subtype:NSAppShouldStopForQt data1:0 data2:0] atStart:NO];
+
+ if (d->activeModalSessionCount() == 0) {
+ // We should only stop NSApp if we actually started it (and
+ // not some 3rd party application, e.g. if we are a plugin).
+ if (d->nsAppRunCalledByQt)
+ [NSApp stop:NSApp];
+ }
#endif
}
@@ -916,5 +998,52 @@ QEventDispatcherMac::~QEventDispatcherMac()
CFRelease(d->waitingObserver);
}
+/////////////////////////////////////////////////////////////////////////////
+
+#ifdef QT_MAC_USE_COCOA
+
+QtMacInterruptDispatcherHelp* QtMacInterruptDispatcherHelp::instance = 0;
+
+QtMacInterruptDispatcherHelp::QtMacInterruptDispatcherHelp() : cancelled(false)
+{
+ // This is the whole point of encapsulation this code
+ // inside a class; we can make the code (inside destructor)
+ // execute on lower loop level:
+ deleteLater();
+}
+
+QtMacInterruptDispatcherHelp::~QtMacInterruptDispatcherHelp()
+{
+ if (cancelled)
+ return;
+
+ instance = 0;
+
+ if (QEventDispatcherMacPrivate::currentExecIsNSAppRun) {
+ int activeCount = QEventDispatcherMacPrivate::activeModalSessionCount();
+ if (activeCount > 0) {
+ // The problem we now have hit: [NSApp stop] will not stop NSApp
+ // if a session is active; it will stop the session instead.
+ // So to stop NSApp, we need to temporarily stop all the
+ // sessions, then stop NSApp, then restart the session on top again.
+ // We need to do this to ensure that we're not stuck inside
+ // [NSApp run] when we really should be running a modal session:
+ QEventDispatcherMacPrivate::temporarilyStopAllModalSessions();
+ }
+ }
+ // Always interrupt once more in case the modal session stack changed
+ // while processEvents was called manually from within the application:
+ QEventDispatcherMac::instance()->interrupt();
+}
+
+void QtMacInterruptDispatcherHelp::interruptLater() {
+ if (instance) {
+ instance->cancelled = true;
+ delete instance;
+ }
+ instance = new QtMacInterruptDispatcherHelp;
+}
+
+#endif
QT_END_NAMESPACE
diff --git a/src/gui/kernel/qeventdispatcher_mac_p.h b/src/gui/kernel/qeventdispatcher_mac_p.h
index 225d32e5c..6747d5231 100644
--- a/src/gui/kernel/qeventdispatcher_mac_p.h
+++ b/src/gui/kernel/qeventdispatcher_mac_p.h
@@ -172,9 +172,15 @@ public:
#ifdef QT_MAC_USE_COCOA
// The following variables help organizing modal sessions:
static QStack<QCocoaModalSessionInfo> cocoaModalSessionStack;
- static bool blockCocoaRequestModal;
- static NSModalSession activeModalSession();
- static void rebuildModalSessionStack(bool pop);
+ static bool currentExecIsNSAppRun;
+ static bool nsAppRunCalledByQt;
+ static NSModalSession currentModalSessionCached;
+ static void updateChildrenWorksWhenModal();
+ static NSModalSession currentModalSession();
+ static int activeModalSessionCount();
+ static void temporarilyStopAllModalSessions();
+ static void beginModalSession(QWidget *widget);
+ static void endModalSession(QWidget *widget);
#endif
MacSocketHash macSockets;
@@ -192,6 +198,20 @@ private:
CFRunLoopActivity activity, void *info);
};
+#ifdef QT_MAC_USE_COCOA
+class QtMacInterruptDispatcherHelp : public QObject
+{
+ static QtMacInterruptDispatcherHelp *instance;
+ bool cancelled;
+
+ QtMacInterruptDispatcherHelp();
+ ~QtMacInterruptDispatcherHelp();
+
+ public:
+ static void interruptLater();
+};
+#endif
+
QT_END_NAMESPACE
#endif // QEVENTDISPATCHER_MAC_P_H
diff --git a/src/gui/kernel/qwidget_mac.mm b/src/gui/kernel/qwidget_mac.mm
index 48a4bc334..5948cd4c7 100644
--- a/src/gui/kernel/qwidget_mac.mm
+++ b/src/gui/kernel/qwidget_mac.mm
@@ -3197,10 +3197,13 @@ void QWidgetPrivate::show_sys()
#else
// sync the opacity value back (in case of a fade).
[window setAlphaValue:q->windowOpacity()];
-
[window makeKeyAndOrderFront:window];
+
+ // If this window is app modal, we need to start spinning
+ // a modal session for it. Interrupting
+ // the event dispatcher will make this happend:
if (data.window_modality == Qt::ApplicationModal)
- QCoreApplication::postEvent(qApp, new QEvent(QEvent::CocoaRequestModal));
+ QEventDispatcherMac::instance()->interrupt();
#endif
if (q->windowType() == Qt::Popup) {
if (q->focusWidget())
@@ -3218,13 +3221,6 @@ void QWidgetPrivate::show_sys()
#endif
} else if (!q->testAttribute(Qt::WA_ShowWithoutActivating)) {
qt_event_request_activate(q);
-#ifdef QT_MAC_USE_COCOA
- if (q->windowModality() == Qt::ApplicationModal) {
- // We call 'activeModalSession' early to force creation of q's modal
- // session. This seems neccessary for child dialogs to pop to front:
- QEventDispatcherMacPrivate::activeModalSession();
- }
-#endif
}
} else if(topData()->embedded || !q->parentWidget() || q->parentWidget()->isVisible()) {
#ifndef QT_MAC_USE_COCOA