diff options
Diffstat (limited to 'src/plugins/platforms/cocoa/qcocoaeventdispatcher.mm')
| -rw-r--r-- | src/plugins/platforms/cocoa/qcocoaeventdispatcher.mm | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/plugins/platforms/cocoa/qcocoaeventdispatcher.mm b/src/plugins/platforms/cocoa/qcocoaeventdispatcher.mm index 874d3fc24b..bf9ba4eccf 100644 --- a/src/plugins/platforms/cocoa/qcocoaeventdispatcher.mm +++ b/src/plugins/platforms/cocoa/qcocoaeventdispatcher.mm @@ -400,8 +400,18 @@ bool QCocoaEventDispatcher::processEvents(QEventLoop::ProcessEventsFlags flags) // [NSApp run], which is the normal code path for cocoa applications. if (NSModalSession session = d->currentModalSession()) { QBoolBlocker execGuard(d->currentExecIsNSAppRun, false); - while ([NSApp runModalSession:session] == NSModalResponseContinue && !d->interrupt) + while ([NSApp runModalSession:session] == NSModalResponseContinue && !d->interrupt) { qt_mac_waitForMoreEvents(NSModalPanelRunLoopMode); + if (session != d->currentModalSessionCached) { + // It's possible to release the current modal session + // while we are in this loop, for example, by closing all + // windows from a slot via QApplication::closeAllWindows. + // In this case we cannot use 'session' anymore. A warning + // from Cocoa is: "Use of freed session detected. Do not + // call runModalSession: after calling endModalSesion:." + break; + } + } if (!d->interrupt && session == d->currentModalSessionCached) { // Someone called [NSApp stopModal:] from outside the event |